/* GENERATED by build_css_bundle — do not edit; edit the source CSS files */

/* --- ./core/theme.css --- */
/* ========================================================================
   JMATHS BRAND THEME - STRICT COLOR PALETTE

   RULE: Only use these CSS variables. Never hardcode hex colors.
   ======================================================================== */

:root {
    /* ====================================================================
       BRAND COLORS - The only colors allowed
       ==================================================================== */

    /* Primary - Teal (use for: buttons, links, primary actions) */
    --color-primary: #14b8a6;
    --color-primary-hover: #0d9488;
    --color-primary-light: #5eead4;
    --color-primary-bg: rgba(20, 184, 166, 0.08);

    /* Success - Emerald (use for: completed, correct, positive) */
    --color-success: #10b981;
    --color-success-hover: #059669;
    --color-success-bg: rgba(16, 185, 129, 0.08);

    /* Warning - Amber (use for: caution, in-progress, attention) */
    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-warning-bg: rgba(245, 158, 11, 0.08);

    /* Danger - Red (use for: errors, delete, destructive) */
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-danger-bg: rgba(239, 68, 68, 0.08);

    /* Info - Cyan (use for: informational, secondary highlight) */
    --color-info: #06b6d4;
    --color-info-hover: #0891b2;
    --color-info-bg: rgba(6, 182, 212, 0.08);

    /* Neutral - Slate (use for: text, borders, backgrounds) */
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-text-light: #94a3b8;
    --color-secondary: #6c757d;         /* Bootstrap gray for secondary elements */
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-bg: #ffffff;
    --color-bg-subtle: #f8fafc;
    --color-bg-muted: #f1f5f9;

    /* Typography — question prose uses a math-matched serif so inline
       MathJax (STIX/TeX) blends into the sentence instead of clashing
       with sans-serif body text (same font the print paper uses). */
    --font-question: 'STIX Two Text', Georgia, 'Times New Roman', serif;

    /* Bootstrap Standard Colors - For Bootstrap compatibility */
    --bs-blue: #0d6efd;
    --bs-green: #198754;
    --bs-orange: #fd7e14;
    --bs-cyan: #0dcaf0;
    --bs-gray: var(--color-secondary);
    --bs-gray-light: #e9ecef;

    /* ====================================================================
       SEMANTIC ALIASES - Use these in components
       ==================================================================== */
    --primary: var(--color-primary);
    --primary-hover: var(--color-primary-hover);
    --secondary: var(--color-info);
    --success: var(--color-success);
    --warning: var(--color-warning);
    --danger: var(--color-danger);
    --info: var(--color-info);

    --text: var(--color-text);
    --text-muted: var(--color-text-muted);
    --text-light: var(--color-text-light);
    --border: var(--color-border);
    --background: var(--color-bg);
    --background-light: var(--color-bg-subtle);

    /* ====================================================================
       LEGACY JMATHS VARIABLES - Mapped to new color system
       (Maintain backward compatibility with existing components)
       ==================================================================== */

    /* Brand blues - mapped to teal primary */
    --jmaths-light-blue: #99f6e4;      /* teal-200 - light accent */
    --jmaths-medium-blue: var(--color-primary);  /* teal-500 - matches --color-primary */
    --jmaths-medium-blue-rgb: 20, 184, 166;
    --jmaths-dark-blue: #0f766e;       /* teal-700 - deep primary */

    /* Primary variants */
    --jmaths-primary: var(--color-primary);
    --jmaths-primary-light: var(--color-primary-light);
    --jmaths-primary-dark: var(--color-primary-hover);

    /* Backgrounds */
    --jmaths-cream: #f0fdfa;           /* teal-50 - soft background */
    --jmaths-bg-primary-soft: var(--color-primary-bg);

    /* Semantic colors */
    --jmaths-red: var(--color-danger);
    --jmaths-success: var(--color-success);
    --jmaths-warning: var(--color-warning);
    --jmaths-danger: var(--color-danger);
    --jmaths-info: var(--color-info);

    /* Gray scale (Slate) */
    --jmaths-gray-50: var(--color-bg-subtle);
    --jmaths-gray-100: var(--color-border-light);
    --jmaths-gray-200: var(--color-border);
    --jmaths-gray-300: #cbd5e1;
    --jmaths-gray-400: var(--color-text-light);
    --jmaths-gray-500: var(--color-text-muted);
    --jmaths-gray-600: #475569;
    --jmaths-gray-700: #334155;
    --jmaths-gray-800: var(--color-text);
    --jmaths-gray-900: #0f172a;

    /* ====================================================================
       RGB VALUES - For rgba() usage
       ==================================================================== */
    --color-primary-rgb: 20, 184, 166;
    --color-success-rgb: 16, 185, 129;
    --color-warning-rgb: 245, 158, 11;
    --color-danger-rgb: 239, 68, 68;
    --color-info-rgb: 6, 182, 212;

    /* ====================================================================
       GRADIENTS - Consistent gradient definitions
       ==================================================================== */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    --gradient-primary-soft: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(20, 184, 166, 0.12) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-hover) 100%);
    --gradient-cool: linear-gradient(135deg, #06b6d4 0%, #0284c7 100%);
    --gradient-subtle: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    --gradient-success: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-hover) 100%);
    --gradient-warning: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-hover) 100%);
    --gradient-danger: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-hover) 100%);
    --gradient-info: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-hover) 100%);

    /* ====================================================================
       SHADOWS, SPACING, RADIUS, TRANSITIONS
       Defined in core/variables.css and core/modern-bootstrap.css
       ==================================================================== */
}

/* ========================================================================
   BOOTSTRAP OVERRIDES
   ======================================================================== */
:root {
    --bs-primary: var(--color-primary);
    --bs-primary-rgb: var(--color-primary-rgb);
    --bs-success: var(--color-success);
    --bs-success-rgb: var(--color-success-rgb);
    --bs-warning: var(--color-warning);
    --bs-warning-rgb: var(--color-warning-rgb);
    --bs-danger: var(--color-danger);
    --bs-danger-rgb: var(--color-danger-rgb);
    --bs-info: var(--color-info);
    --bs-info-rgb: var(--color-info-rgb);
    --bs-secondary: var(--color-text-muted);

    --bs-link-color: var(--color-primary);
    --bs-link-hover-color: var(--color-primary-hover);

    --bs-body-color: var(--color-text);
    --bs-body-bg: var(--color-bg);
    --bs-border-color: var(--color-border);
}

/* Text on colored backgrounds */
.bg-primary, .bg-success, .bg-danger, .bg-info { color: white !important; }
.bg-warning { color: var(--color-text) !important; }
.bg-light { background-color: var(--color-bg-subtle) !important; }

/* --- ./core/variables.css --- */
/* ========================================================================
   JMATHS CSS CORE VARIABLES
   Design tokens for spacing, typography, shadows, etc.

   NOTE: Colors are defined in core/theme.css - DO NOT define colors here!
   ======================================================================== */

:root {
    /* ====================================================================
       SPACING SCALE - Consistent and proportional
       ==================================================================== */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 2.5rem;   /* 40px */
    --spacing-3xl: 3rem;     /* 48px */

    /* ====================================================================
       TYPOGRAPHY SCALE
       ==================================================================== */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;

    /* ====================================================================
       BORDER RADIUS SCALE
       ==================================================================== */
    --radius-none: 0;
    --radius-sm: 0.25rem;     /* 4px */
    --radius-base: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;      /* 8px */
    --radius-lg: 0.75rem;     /* 12px */
    --radius-xl: 1rem;        /* 16px */
    --radius-2xl: 1.5rem;     /* 24px */
    --radius-full: 9999px;    /* Fully rounded */

    /* ====================================================================
       SHADOWS - Defined in modern-bootstrap.css (single source of truth)
       See modern-bootstrap.css for --shadow-xs through --shadow-2xl
       ==================================================================== */

    /* Height of the sticky top navbar; sticky sub-navs offset by this. */
    --jm-navbar-height: 56px;

    /* ====================================================================
       Z-INDEX SCALE
       ==================================================================== */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal-backdrop: 1040;
    --z-index-modal: 1050;
    --z-index-popover: 1060;
    --z-index-tooltip: 1070;
    --z-index-toast: 1080;

    /* ====================================================================
       TRANSITIONS - Defined in modern-bootstrap.css (single source of truth)
       See modern-bootstrap.css for --transition-fast, --transition-base, --transition-slow
       ==================================================================== */

    /* ====================================================================
       ANIMATION DURATIONS
       ==================================================================== */
    --duration-75: 75ms;
    --duration-100: 100ms;
    --duration-150: 150ms;
    --duration-200: 200ms;
    --duration-300: 300ms;
    --duration-500: 500ms;
    --duration-700: 700ms;
    --duration-1000: 1000ms;
}

/* ========================================================================
   DARK MODE SUPPORT (Future Ready - Currently Disabled)
   ======================================================================== */
/* Temporarily disabled until proper dark mode implementation
@media (prefers-color-scheme: dark) {
    :root {
        --background: var(--jmaths-gray-900);
        --background-light: var(--jmaths-gray-800);
        --background-card: var(--jmaths-gray-800);
        --background-subtle: var(--jmaths-gray-800);

        --text: var(--jmaths-gray-100);
        --text-muted: var(--jmaths-gray-400);
        --text-light: var(--jmaths-gray-500);
        --text-dark: var(--jmaths-gray-50);

        --border: var(--jmaths-gray-700);
        --border-light: var(--jmaths-gray-800);
        --border-strong: var(--jmaths-gray-600);
    }
}
*/

/* ========================================================================
   PRINT MODE OPTIMIZATIONS
   ======================================================================== */
@media print {
    :root {
        /* Remove shadows for print */
        --shadow-sm: none;
        --shadow-base: none;
        --shadow-md: none;
        --shadow-lg: none;
        --shadow-xl: none;
        --shadow-primary: none;
        --shadow-primary-lg: none;

        /* High contrast for print */
        --border: #000000;
        --text: #000000;
        --background: #ffffff;
        --background-card: #ffffff;
    }
}

/* ========================================================================
   ACCESSIBILITY OVERRIDES
   ======================================================================== */

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border: var(--jmaths-gray-800);
        --border-strong: var(--jmaths-gray-900);
        --text-muted: var(--jmaths-gray-700);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: none;
        --transition-base: none;
        --transition-slow: none;
        --transition-colors: none;
    }
}

/* --- ./core/base.css --- */
/* ========================================================================
   JMATHS CSS CORE BASE STYLES
   Foundation styles - Bootstrap overrides moved to modern-bootstrap.css
   ======================================================================== */

/* ========================================================================
   GLOBAL BASE STYLES
   ======================================================================== */

/* Body and layout */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background-color: var(--background-light);
    line-height: 1.6;
    padding-right: 0 !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Consistent link styling */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 150ms ease;
}

a:hover {
    color: var(--primary-hover);
}

/* Remove underline on hover for most links - let components decide */
a:not(.text-decoration-underline):hover {
    text-decoration: none;
}

/* Typography improvements */
h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

/* Paragraph spacing */
p {
    margin-bottom: 1rem;
    color: var(--text);
}

/* Text utilities */
.text-muted {
    color: var(--text-muted) !important;
}

.text-light {
    color: var(--text-light) !important;
}

/* Container improvements */
.container-fluid {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

@media (max-width: 768px) {
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* Skip to content for accessibility */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 0.5rem;
    z-index: 9999;
}

.skip-to-content:focus {
    top: 6px;
}

/* Selection styling */
::selection {
    background: rgba(var(--color-primary-rgb), 0.2);
    color: inherit;
}

/* ========================================================================
   MATH CONTENT - Prevent inline math from breaking across lines
   ======================================================================== */
.latex-content,
.math-inline,
mjx-container,
.katex,
.MathJax {
    white-space: nowrap;
    display: inline-block;
}

.katex-display,
.MathJax_Display {
    white-space: normal;
    display: block;
}

/* ========================================================================
   PRINT STYLES
   ======================================================================== */
@media print {
    .btn,
    .navbar,
    .breadcrumb,
    .page-item,
    .modal,
    .dropdown-menu {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .card {
        border: 1px solid #000 !important;
        box-shadow: none !important;
    }

    a[href]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }

    /* Prevent math equations from breaking across lines in print */
    .latex-content,
    .math-inline,
    mjx-container,
    .katex {
        white-space: nowrap;
        display: inline-block;
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* --- ./core/modern-bootstrap.css --- */
/* ==========================================================================
   MODERN BOOTSTRAP OVERRIDES - JMaths
   Transforms generic Bootstrap into a polished, branded experience
   ========================================================================== */

/* --------------------------------------------------------------------------
   DESIGN TOKENS - Modern Aesthetic
   -------------------------------------------------------------------------- */
:root {
    /* Softer corners - the #1 change for modern look */
    --radius-sm: 0.5rem;      /* 8px - buttons, badges, small elements */
    --radius-md: 0.75rem;     /* 12px - cards, inputs, dropdowns */
    --radius-lg: 1rem;        /* 16px - modals, large cards */
    --radius-xl: 1.5rem;      /* 24px - hero sections, feature cards */
    --radius-full: 9999px;    /* Pills, avatars */

    /* Branded shadows - teal tinted for cohesion */
    --shadow-xs: 0 1px 2px rgba(20, 184, 166, 0.04);
    --shadow-sm: 0 1px 3px rgba(20, 184, 166, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(20, 184, 166, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(20, 184, 166, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(20, 184, 166, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --shadow-2xl: 0 25px 50px -12px rgba(20, 184, 166, 0.2);

    /* Hover elevation shadows */
    --shadow-hover: 0 10px 20px -5px rgba(20, 184, 166, 0.15), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-active: 0 2px 4px rgba(20, 184, 166, 0.1);

    /* Smooth transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Subtle background tints */
    --bg-tint: rgba(20, 184, 166, 0.02);
    --bg-tint-hover: rgba(20, 184, 166, 0.04);
    --bg-subtle: linear-gradient(135deg, rgba(255,255,255,1) 0%, rgba(241,245,249,0.5) 100%);
}

/* --------------------------------------------------------------------------
   BUTTONS - Elevated, Interactive
   -------------------------------------------------------------------------- */
.btn {
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    border: none;
    position: relative;
    overflow: hidden;
}

/* Primary - Gradient with depth */
.btn-primary {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    color: white;
    box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--jmaths-dark-blue) 100%);
    color: white;
    box-shadow: var(--shadow-hover);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-active);
}

/* Secondary - Subtle with border */
.btn-secondary {
    background: white;
    color: var(--jmaths-gray-600);
    border: 1px solid #e2e8f0;
    box-shadow: var(--shadow-xs);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: #f8fafc;
    color: var(--jmaths-gray-700);
    border-color: var(--jmaths-gray-300);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

/* Outline Primary - Clean with hover fill */
.btn-outline-primary {
    background: transparent;
    color: #14b8a6;
    border: 1.5px solid #14b8a6;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* Outline Secondary */
.btn-outline-secondary {
    background: transparent;
    color: #64748b;
    border: 1.5px solid #e2e8f0;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    background: #f1f5f9;
    color: var(--jmaths-gray-700);
    border-color: var(--jmaths-gray-300);
}

/* Success, Warning, Danger - Consistent treatment */
.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-hover) 100%);
    box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--color-success-hover) 0%, #047857 100%);
    box-shadow: 0 10px 20px -5px rgba(var(--color-success-rgb), 0.25);
    transform: translateY(-1px);
}

.btn-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-hover) 100%);
    color: white;
    box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--color-warning-hover) 0%, #b45309 100%);
    box-shadow: 0 10px 20px -5px rgba(var(--color-warning-rgb), 0.25);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-hover) 100%);
    box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--color-danger-hover) 0%, #b91c1c 100%);
    box-shadow: 0 10px 20px -5px rgba(var(--color-danger-rgb), 0.25);
    transform: translateY(-1px);
}

/* Button sizes */
.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.0625rem;
    border-radius: var(--radius-md);
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
    border-radius: 0.375rem;
}

/* Icon buttons */
.btn-icon {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   CARDS - Elevated with subtle branding
   -------------------------------------------------------------------------- */
.card {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    border-color: rgba(var(--color-primary-rgb), 0.2);
    transform: translateY(-2px);
}

/* Card header - Subtle gradient */
.card-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: #1e293b;
}

/* Themed card header */
.card-header.bg-primary {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    border-bottom: none;
    color: white;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    background: #fafbfc;
    border-top: 1px solid rgba(226, 232, 240, 0.8);
    padding: 1rem 1.25rem;
}

/* Card variants */
.card.card-hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card.card-interactive {
    cursor: pointer;
}

.card.card-interactive:hover {
    border-color: #14b8a6;
}

/* Stat cards */
.card.stat-card {
    text-align: center;
    padding: 1.5rem;
}

.card.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #14b8a6;
    line-height: 1;
}

.card.stat-card .stat-label {
    font-size: 0.875rem;
    color: #64748b;
    margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   FORMS - Refined inputs with better focus states
   -------------------------------------------------------------------------- */
.form-control,
.form-select {
    border: 1.5px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    background-color: white;
    transition: all var(--transition-base);
    color: #1e293b;
}

.form-control::placeholder {
    color: #94a3b8;
}

.form-control:hover,
.form-select:hover {
    border-color: var(--jmaths-gray-300);
}

.form-control:focus,
.form-select:focus {
    border-color: #14b8a6;
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
    outline: none;
}

/* Form labels */
.form-label {
    font-weight: 500;
    color: var(--jmaths-gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

/* Input groups */
.input-group .form-control {
    border-radius: 0;
}

.input-group .form-control:first-child,
.input-group .input-group-text:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.input-group .form-control:last-child,
.input-group .input-group-text:last-child,
.input-group .btn:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.input-group-text {
    background: #f8fafc;
    border: 1.5px solid #e2e8f0;
    border-right: none;
    color: #64748b;
}

/* Floating labels */
.form-floating > .form-control,
.form-floating > .form-select {
    height: calc(3.5rem + 2px);
    padding: 1rem 0.875rem;
}

/* Form validation */
.form-control.is-valid {
    border-color: var(--color-success);
    background-image: none;
}

.form-control.is-valid:focus {
    border-color: var(--color-success);
    box-shadow: 0 0 0 3px rgba(var(--color-success-rgb), 0.12);
}

.form-control.is-invalid {
    border-color: var(--color-danger);
    background-image: none;
}

.form-control.is-invalid:focus {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(var(--color-danger-rgb), 0.12);
}

/* Checkboxes and radios */
.form-check-input {
    width: 1.125rem;
    height: 1.125rem;
    border: 1.5px solid var(--jmaths-gray-300);
    transition: all var(--transition-fast);
}

.form-check-input:checked {
    background-color: #14b8a6;
    border-color: #14b8a6;
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
    border-color: #14b8a6;
}

/* --------------------------------------------------------------------------
   NAVIGATION - Clean with subtle depth
   -------------------------------------------------------------------------- */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
}

.navbar-brand {
    font-weight: 700;
    color: #14b8a6;
    font-size: 1.25rem;
}

.navbar-brand:hover {
    color: var(--color-primary-hover);
}

.nav-link {
    color: var(--jmaths-gray-600);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: #14b8a6;
    background: rgba(var(--color-primary-rgb), 0.06);
}

.nav-link.active {
    color: #14b8a6;
    background: rgba(var(--color-primary-rgb), 0.1);
}

/* Nav pills */
.nav-pills .nav-link {
    border-radius: var(--radius-sm);
}

.nav-pills .nav-link.active {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* Nav tabs */
.nav-tabs {
    border-bottom: 2px solid #e2e8f0;
}

.nav-tabs .nav-link {
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    border-radius: 0;
    color: #64748b;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: #14b8a6;
    background: transparent;
}

.nav-tabs .nav-link.active {
    color: #14b8a6;
    background: transparent;
    border-bottom-color: #14b8a6;
}

/* Dropdowns */
.dropdown-menu {
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    animation: dropdownFadeIn var(--transition-fast) ease-out;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    color: var(--jmaths-gray-600);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: rgba(var(--color-primary-rgb), 0.08);
    color: #14b8a6;
}

.dropdown-item.active,
.dropdown-item:active {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    color: white;
}

.dropdown-divider {
    margin: 0.375rem 0;
    border-color: #e2e8f0;
}

/* --------------------------------------------------------------------------
   BADGES - Softer, branded
   -------------------------------------------------------------------------- */
.badge {
    font-weight: 600;
    padding: 0.375rem 0.625rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    letter-spacing: 0.01em;
}

.badge.bg-primary {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
}

.badge.bg-secondary {
    background: #f1f5f9;
    color: var(--jmaths-gray-600);
}

.badge.bg-success {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-hover) 100%);
}

.badge.bg-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-hover) 100%);
    color: white;
}

.badge.bg-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-hover) 100%);
}

.badge.bg-info {
    background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-hover) 100%);
}

/* Soft badge variants */
.badge.bg-primary-soft {
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary-hover);
}

.badge.bg-success-soft {
    background: rgba(var(--color-success-rgb), 0.1);
    color: var(--color-success-hover);
}

.badge.bg-warning-soft {
    background: rgba(var(--color-warning-rgb), 0.1);
    color: #b45309;
}

.badge.bg-danger-soft {
    background: rgba(var(--color-danger-rgb), 0.1);
    color: var(--color-danger-hover);
}

/* --------------------------------------------------------------------------
   ALERTS - Cleaner with left accent
   -------------------------------------------------------------------------- */
.alert {
    border: none;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    border-left: 4px solid;
}

.alert-primary {
    background: rgba(var(--color-primary-rgb), 0.08);
    border-left-color: #14b8a6;
    color: var(--jmaths-dark-blue);
}

.alert-success {
    background: rgba(var(--color-success-rgb), 0.08);
    border-left-color: var(--color-success);
    color: #047857;
}

.alert-warning {
    background: rgba(var(--color-warning-rgb), 0.08);
    border-left-color: var(--color-warning);
    color: #92400e;
}

.alert-danger {
    background: rgba(var(--color-danger-rgb), 0.08);
    border-left-color: var(--color-danger);
    color: #b91c1c;
}

.alert-info {
    background: rgba(var(--color-info-rgb), 0.08);
    border-left-color: var(--color-info);
    color: #0e7490;
}

/* --------------------------------------------------------------------------
   MODALS - Refined with better animations
   -------------------------------------------------------------------------- */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem 1.5rem;
}

.modal-header .modal-title {
    font-weight: 600;
    color: #1e293b;
}

.modal-header .btn-close {
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.modal-header .btn-close:hover {
    opacity: 1;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #e2e8f0;
    padding: 1rem 1.5rem;
    background: #fafbfc;
}

/* Modal animations */
.modal.fade .modal-dialog {
    transform: scale(0.95) translateY(-20px);
    transition: transform var(--transition-slow);
}

.modal.show .modal-dialog {
    transform: scale(1) translateY(0);
}

.modal-backdrop {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
}

/* --------------------------------------------------------------------------
   TABLES - Clean with hover states
   -------------------------------------------------------------------------- */
.table {
    --bs-table-bg: transparent;
    border-color: #e2e8f0;
}

.table > thead {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.table > thead th {
    font-weight: 600;
    color: var(--jmaths-gray-600);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 0.875rem 1rem;
    border-bottom: 2px solid #e2e8f0;
}

.table > tbody td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    color: var(--jmaths-gray-700);
}

.table > tbody tr {
    transition: background-color var(--transition-fast);
}

.table-hover > tbody > tr:hover {
    background-color: rgba(var(--color-primary-rgb), 0.04);
}

/* Striped tables */
.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: rgba(248, 250, 252, 0.5);
}

/* --------------------------------------------------------------------------
   PAGINATION - Modern pills
   -------------------------------------------------------------------------- */
.pagination {
    gap: 0.25rem;
}

.page-link {
    border: none;
    border-radius: var(--radius-sm);
    color: var(--jmaths-gray-600);
    padding: 0.5rem 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.page-link:hover {
    background: rgba(var(--color-primary-rgb), 0.1);
    color: #14b8a6;
}

.page-item.active .page-link {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.page-item.disabled .page-link {
    background: transparent;
    color: var(--jmaths-gray-300);
}

/* --------------------------------------------------------------------------
   PROGRESS BARS - Branded gradients
   -------------------------------------------------------------------------- */
.progress {
    height: 0.625rem;
    background: #e2e8f0;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, #14b8a6 0%, var(--color-info) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.bg-success {
    background: linear-gradient(90deg, var(--color-success) 0%, #34d399 100%);
}

.progress-bar.bg-warning {
    background: linear-gradient(90deg, var(--color-warning) 0%, #fbbf24 100%);
}

.progress-bar.bg-danger {
    background: linear-gradient(90deg, var(--color-danger) 0%, #f87171 100%);
}

/* --------------------------------------------------------------------------
   LIST GROUPS - Cleaner styling
   -------------------------------------------------------------------------- */
.list-group {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.list-group-item {
    border-color: #e2e8f0;
    padding: 0.875rem 1.25rem;
    color: var(--jmaths-gray-700);
    transition: all var(--transition-fast);
}

.list-group-item:first-child {
    border-top-left-radius: var(--radius-md);
    border-top-right-radius: var(--radius-md);
}

.list-group-item:last-child {
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.list-group-item-action:hover {
    background: rgba(var(--color-primary-rgb), 0.04);
    color: #14b8a6;
}

.list-group-item.active {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
    border-color: transparent;
}

/* --------------------------------------------------------------------------
   BREADCRUMBS - Subtle styling
   -------------------------------------------------------------------------- */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1.5rem;
}

.breadcrumb-item {
    font-size: 0.875rem;
}

.breadcrumb-item a {
    color: #64748b;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: #14b8a6;
}

.breadcrumb-item.active {
    color: #1e293b;
    font-weight: 500;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--jmaths-gray-300);
}

/* --------------------------------------------------------------------------
   TOOLTIPS & POPOVERS - Refined
   -------------------------------------------------------------------------- */
.tooltip-inner {
    background: #1e293b;
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    box-shadow: var(--shadow-lg);
}

.popover {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
}

.popover-header {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 600;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.popover-body {
    padding: 1rem;
}

/* --------------------------------------------------------------------------
   SPINNERS - Branded colors
   -------------------------------------------------------------------------- */
.spinner-border {
    color: #14b8a6;
}

.spinner-border.text-primary {
    color: #14b8a6;
}

/* --------------------------------------------------------------------------
   TOASTS - Modern styling
   -------------------------------------------------------------------------- */
.toast {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
}

.toast-header {
    background: rgba(248, 250, 252, 0.95);
    border-bottom: 1px solid #e2e8f0;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* --------------------------------------------------------------------------
   UTILITY CLASSES - Additional helpers
   -------------------------------------------------------------------------- */

/* Gradient backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-primary-hover) 100%);
}

.bg-gradient-dark {
    background: linear-gradient(135deg, #1e293b 0%, var(--jmaths-gray-900) 100%);
}

.bg-gradient-light {
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
}

/* Subtle backgrounds */
.bg-subtle {
    background: var(--bg-subtle);
}

.bg-tint {
    background: var(--bg-tint);
}

/* Shadow utilities */
.shadow-hover:hover {
    box-shadow: var(--shadow-hover);
}

.shadow-brand {
    box-shadow: var(--shadow-md);
}

/* Border utilities */
.border-subtle {
    border-color: rgba(226, 232, 240, 0.8);
}

/* Text utilities */
.text-gradient {
    background: linear-gradient(135deg, #14b8a6 0%, var(--color-info) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hover transitions for links */
a {
    transition: color var(--transition-fast);
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- ./utilities.css --- */
/**
 * JMaths Utility Classes
 * ======================
 *
 * Comprehensive utility class system that eliminates inline styles and provides
 * consistent spacing, typography, and component styling across the platform.
 *
 * Usage:
 *   <div class="spacing-md card-compact btn-icon-only">
 *   <p class="text-truncate-2 font-weight-medium">
 */

/* ==========================================================================
   Spacing Utilities
   ========================================================================== */

/* Margin utilities */
.spacing-xs { margin: 0.25rem !important; }
.spacing-sm { margin: 0.5rem !important; }
.spacing-md { margin: 1rem !important; }
.spacing-lg { margin: 1.5rem !important; }
.spacing-xl { margin: 2rem !important; }

/* Margin directional */
.mt-xs { margin-top: 0.25rem !important; }
.mt-sm { margin-top: 0.5rem !important; }
.mt-md { margin-top: 1rem !important; }
.mt-lg { margin-top: 1.5rem !important; }
.mt-xl { margin-top: 2rem !important; }

.mb-xs { margin-bottom: 0.25rem !important; }
.mb-sm { margin-bottom: 0.5rem !important; }
.mb-md { margin-bottom: 1rem !important; }
.mb-lg { margin-bottom: 1.5rem !important; }
.mb-xl { margin-bottom: 2rem !important; }

.ml-xs, .ms-xs { margin-left: 0.25rem !important; }
.ml-sm, .ms-sm { margin-left: 0.5rem !important; }
.ml-md, .ms-md { margin-left: 1rem !important; }
.ml-lg, .ms-lg { margin-left: 1.5rem !important; }
.ml-xl, .ms-xl { margin-left: 2rem !important; }

.mr-xs, .me-xs { margin-right: 0.25rem !important; }
.mr-sm, .me-sm { margin-right: 0.5rem !important; }
.mr-md, .me-md { margin-right: 1rem !important; }
.mr-lg, .me-lg { margin-right: 1.5rem !important; }
.mr-xl, .me-xl { margin-right: 2rem !important; }

/* Padding utilities */
.padding-xs { padding: 0.25rem !important; }
.padding-sm { padding: 0.5rem !important; }
.padding-md { padding: 1rem !important; }
.padding-lg { padding: 1.5rem !important; }
.padding-xl { padding: 2rem !important; }

/* Padding directional */
.pt-xs { padding-top: 0.25rem !important; }
.pt-sm { padding-top: 0.5rem !important; }
.pt-md { padding-top: 1rem !important; }
.pt-lg { padding-top: 1.5rem !important; }
.pt-xl { padding-top: 2rem !important; }

.pb-xs { padding-bottom: 0.25rem !important; }
.pb-sm { padding-bottom: 0.5rem !important; }
.pb-md { padding-bottom: 1rem !important; }
.pb-lg { padding-bottom: 1.5rem !important; }
.pb-xl { padding-bottom: 2rem !important; }

.pl-xs, .ps-xs { padding-left: 0.25rem !important; }
.pl-sm, .ps-sm { padding-left: 0.5rem !important; }
.pl-md, .ps-md { padding-left: 1rem !important; }
.pl-lg, .ps-lg { padding-left: 1.5rem !important; }
.pl-xl, .ps-xl { padding-left: 2rem !important; }

.pr-xs, .pe-xs { padding-right: 0.25rem !important; }
.pr-sm, .pe-sm { padding-right: 0.5rem !important; }
.pr-md, .pe-md { padding-right: 1rem !important; }
.pr-lg, .pe-lg { padding-right: 1.5rem !important; }
.pr-xl, .pe-xl { padding-right: 2rem !important; }

/* ==========================================================================
   Typography Utilities
   ========================================================================== */

/* Font weights */
.font-weight-light { font-weight: 300 !important; }
.font-weight-normal { font-weight: 400 !important; }
.font-weight-medium { font-weight: 500 !important; }
.font-weight-semibold { font-weight: 600 !important; }
.font-weight-bold { font-weight: 700 !important; }
.font-weight-black { font-weight: 900 !important; }

/* Font sizes */
.font-size-xs { font-size: 0.75rem !important; }
.font-size-sm { font-size: 0.875rem !important; }
.font-size-md { font-size: 1rem !important; }
.font-size-lg { font-size: 1.125rem !important; }
.font-size-xl { font-size: 1.25rem !important; }
.font-size-xxl { font-size: 1.5rem !important; }

/* Text utilities */
.text-truncate-1 {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
}

.text-truncate-2 {
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.text-truncate-3 {
    display: -webkit-box !important;
    -webkit-line-clamp: 3 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.line-height-tight { line-height: 1.2 !important; }
.line-height-normal { line-height: 1.5 !important; }
.line-height-loose { line-height: 1.8 !important; }

/* ==========================================================================
   Component Utilities
   ========================================================================== */

/* Card utilities */
.card-compact {
    padding: 0.5rem !important;
}

.card-compact .card-body {
    padding: 0.5rem !important;
}

.card-flush {
    border-radius: 0 !important;
    border-left: 0 !important;
    border-right: 0 !important;
}

.card-hover {
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out !important;
}

.card-hover:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12) !important;
}

.card-border-left {
    border-left: 4px solid var(--jmaths-medium-blue) !important;
}

.card-border-top {
    border-top: 4px solid var(--jmaths-medium-blue) !important;
}

/* Button utilities */
.btn-icon-only {
    width: 2.5rem !important;
    height: 2.5rem !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.btn-icon-sm {
    width: 2rem !important;
    height: 2rem !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.75rem !important;
}

/* Mobile touch targets - increase to 44px minimum */
@media (max-width: 991.98px) {
    .btn-icon-sm {
        width: 2.75rem !important;
        height: 2.75rem !important;
        font-size: 0.875rem !important;
    }
}

.btn-icon-lg {
    width: 3rem !important;
    height: 3rem !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 1.1rem !important;
}

.btn-loading {
    position: relative !important;
    pointer-events: none !important;
}

.btn-loading::after {
    content: '' !important;
    position: absolute !important;
    width: 1rem !important;
    height: 1rem !important;
    margin: auto !important;
    border: 2px solid transparent !important;
    border-top-color: currentColor !important;
    border-radius: 50% !important;
    animation: btn-loading-spin 1s linear infinite !important;
}

@keyframes btn-loading-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn-group-vertical-sm .btn {
    font-size: 0.875rem !important;
    padding: 0.25rem 0.5rem !important;
}

/* Form utilities */
.form-floating-custom {
    position: relative !important;
}

.form-floating-custom .form-control {
    padding-top: 1.625rem !important;
    padding-bottom: 0.625rem !important;
}

.form-floating-custom .form-label {
    position: absolute !important;
    top: 0 !important;
    left: 0.75rem !important;
    height: 100% !important;
    padding: 1rem 0.25rem 0 0 !important;
    pointer-events: none !important;
    border: 1px solid transparent !important;
    transform-origin: 0 0 !important;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out !important;
}

.form-control-borderless {
    border: none !important;
    border-radius: 0 !important;
    border-bottom: 2px solid #dee2e6 !important;
    background: transparent !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.form-control-borderless:focus {
    border-bottom-color: var(--jmaths-medium-blue) !important;
    box-shadow: none !important;
}

.form-group-inline {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
}

.form-group-inline .form-label {
    margin-bottom: 0 !important;
    white-space: nowrap !important;
}

/* Table utilities */
.table-compact {
    font-size: 0.875rem !important;
}

.table-compact th,
.table-compact td {
    padding: 0.5rem !important;
    vertical-align: middle !important;
}

.table-hover-primary tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.075) !important;
}

.table-clickable tbody tr {
    cursor: pointer !important;
    transition: background-color 0.15s ease-in-out !important;
}

.table-sticky-header thead th {
    position: sticky !important;
    top: 0 !important;
    z-index: 10 !important;
    background-color: var(--bs-white) !important;
}

.table-cell-nowrap {
    white-space: nowrap !important;
}

.table-cell-min {
    width: 1% !important;
    white-space: nowrap !important;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

/* Flexbox utilities */
.flex-center {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.flex-between {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
}

.flex-column-center {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
}

.flex-wrap-reverse {
    flex-wrap: wrap-reverse !important;
}

.flex-grow-0 { flex-grow: 0 !important; }
.flex-grow-1 { flex-grow: 1 !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }
.flex-shrink-1 { flex-shrink: 1 !important; }

/* Grid utilities */
.grid-auto-fit {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)) !important;
    gap: 1rem !important;
}

.grid-auto-fill {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)) !important;
    gap: 1rem !important;
}

/* Position utilities */
.position-center {
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
}

.position-center-x {
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
}

.position-center-y {
    position: absolute !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
}

/* ==========================================================================
   Visual Utilities
   ========================================================================== */

/* Border utilities */
.border-dashed { border-style: dashed !important; }
.border-dotted { border-style: dotted !important; }

.border-radius-0 { border-radius: 0 !important; }
.border-radius-sm { border-radius: 0.25rem !important; }
.border-radius-md { border-radius: 0.375rem !important; }
.border-radius-lg { border-radius: 0.5rem !important; }
.border-radius-xl { border-radius: 1rem !important; }
.border-radius-pill { border-radius: 50rem !important; }
.border-radius-circle { border-radius: 50% !important; }

/* Shadow utilities */
.shadow-xs {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05) !important;
}

.shadow-sm {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06) !important;
}

.shadow-md {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06) !important;
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05) !important;
}

.shadow-xl {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04) !important;
}

.shadow-inner {
    box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06) !important;
}

/* Color utilities */
.bg-light-blue { background-color: rgba(13, 110, 253, 0.075) !important; }
.bg-light-green { background-color: rgba(25, 135, 84, 0.075) !important; }
.bg-light-red { background-color: rgba(220, 53, 69, 0.075) !important; }
.bg-light-yellow { background-color: rgba(255, 193, 7, 0.075) !important; }
.bg-light-gray { background-color: rgba(108, 117, 125, 0.075) !important; }

.text-jmaths-blue { color: var(--jmaths-medium-blue) !important; }
.bg-jmaths-blue { background-color: var(--jmaths-medium-blue) !important; }
.border-jmaths-blue { border-color: var(--jmaths-medium-blue) !important; }

/* ==========================================================================
   Animation Utilities
   ========================================================================== */

.animate-fade-in {
    animation: fade-in 0.3s ease-in-out !important;
}

.animate-fade-out {
    animation: fade-out 0.3s ease-in-out !important;
}

.animate-slide-up {
    animation: slide-up 0.3s ease-out !important;
}

.animate-slide-down {
    animation: slide-down 0.3s ease-out !important;
}

.animate-bounce {
    animation: bounce 0.6s ease-in-out !important;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite !important;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slide-up {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes slide-down {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% { transform: translate3d(0, 0, 0); }
    40%, 43% { transform: translate3d(0, -30px, 0); }
    70% { transform: translate3d(0, -15px, 0); }
    90% { transform: translate3d(0, -4px, 0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */

/* Hide/show on different screen sizes */
@media (max-width: 575.98px) {
    .hide-xs { display: none !important; }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .hide-sm { display: none !important; }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .hide-md { display: none !important; }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
    .hide-lg { display: none !important; }
}

@media (min-width: 1200px) {
    .hide-xl { display: none !important; }
}

@media (max-width: 767.98px) {
    .hide-mobile { display: none !important; }
    .show-mobile { display: block !important; }
}

@media (min-width: 768px) {
    .hide-desktop { display: none !important; }
    .show-desktop { display: block !important; }
}

/* ==========================================================================
   Print Utilities
   ========================================================================== */

@media print {
    .print-hidden { display: none !important; }
    .print-visible { display: block !important; }

    .print-break-before { page-break-before: always !important; }
    .print-break-after { page-break-after: always !important; }
    .print-break-inside-avoid { page-break-inside: avoid !important; }
}

/* ==========================================================================
   Accessibility Utilities
   ========================================================================== */

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.sr-only-focusable:focus {
    position: static !important;
    width: auto !important;
    height: auto !important;
    padding: inherit !important;
    margin: inherit !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: inherit !important;
}

.focus-visible:focus {
    outline: 2px solid var(--jmaths-medium-blue) !important;
    outline-offset: 2px !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border-width: 2px !important;
    }

    .btn {
        border-width: 2px !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   Inline Style Replacements
   ========================================================================== */
/* These utilities replace common inline styles found in templates */

/* Cursor utilities */
.cursor-pointer { cursor: pointer !important; }
.cursor-default { cursor: default !important; }
.cursor-not-allowed { cursor: not-allowed !important; }
.cursor-grab { cursor: grab !important; }
.cursor-grabbing { cursor: grabbing !important; }

/* ========================================================================
   Font Size Utilities (comprehensive - replaces inline styles)
   ======================================================================== */
/* Extra small sizes */
.text-xxs { font-size: 0.6rem !important; }     /* 9.6px - tiny labels */
.text-tiny { font-size: 0.65rem !important; }   /* 10.4px - very small badges */
.text-xs { font-size: 0.7rem !important; }      /* 11.2px - small badges, refs */
.text-xxs-sm { font-size: 0.75rem !important; } /* 12px - codes, meta text */

/* Standard small sizes */
.text-sm-xs { font-size: 0.8rem !important; }   /* 12.8px - common inline font-size */
.text-sm { font-size: 0.85rem !important; }     /* 13.6px - secondary text */
.text-sm-md { font-size: 0.875rem !important; } /* 14px - Bootstrap sm equivalent */
.text-sm-lg { font-size: 0.9rem !important; }   /* 14.4px - card descriptions */
.text-sm-xl { font-size: 0.95rem !important; }  /* 15.2px - slightly small */

/* Standard base sizes */
.text-base { font-size: 1rem !important; }      /* 16px - base */
.text-md { font-size: 1.1rem !important; }      /* 17.6px - emphasis */
.text-md-lg { font-size: 1.125rem !important; } /* 18px - subheadings */

/* Large sizes */
.text-lg { font-size: 1.25rem !important; }     /* 20px - section titles */
.text-xl { font-size: 1.5rem !important; }      /* 24px - headings */
.text-2xl { font-size: 1.75rem !important; }    /* 28px */
.text-3xl { font-size: 2rem !important; }       /* 32px - large headings */

/* Display sizes */
.text-display-xs { font-size: 2.5rem !important; }
.text-display-sm { font-size: 3rem !important; }
.text-display-md { font-size: 4rem !important; }
.text-display-lg { font-size: 5rem !important; }

/* Min/max width utilities */
.min-w-0 { min-width: 0 !important; }
.min-w-44 { min-width: 44px !important; }
.max-w-500 { max-width: 500px !important; }
.max-w-600 { max-width: 600px !important; }
.w-60 { width: 60px !important; }
.w-80 { width: 80px !important; }
.w-90 { width: 90px !important; }
.w-100px { width: 100px !important; }
.w-120 { width: 120px !important; }

/* Height utilities for progress bars etc */
.h-6 { height: 6px !important; }
.h-8 { height: 8px !important; }
.min-h-44 { min-height: 44px !important; }

/* Larger progress meter used in class dashboards */
.progress-meter {
    height: 30px;
    min-width: 120px;
}
.progress-meter .progress-bar {
    font-size: 0.875rem;
}

/* Touch target (mobile accessibility) */
.touch-target {
    min-width: 44px !important;
    min-height: 44px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* Whitespace utilities */
.whitespace-pre { white-space: pre !important; }
.whitespace-pre-wrap { white-space: pre-wrap !important; }
.whitespace-nowrap { white-space: nowrap !important; }

/* Z-index utilities */
.z-dropdown { z-index: 1000 !important; }
.z-sticky { z-index: 1020 !important; }
.z-fixed { z-index: 1030 !important; }
.z-modal-backdrop { z-index: 1040 !important; }
.z-modal { z-index: 1050 !important; }
.z-popover { z-index: 1060 !important; }
.z-tooltip { z-index: 1070 !important; }
.z-toast { z-index: 9999 !important; }

/* Theme color utilities (teal accent) */
.text-teal { color: var(--color-primary) !important; }
.bg-teal { background-color: var(--color-primary) !important; }
.border-teal { border-color: var(--color-primary) !important; }

/* Status background colors (matching inline styles) */
.bg-status-success { background: #bbf7d0 !important; }
.bg-status-warning { background: #fef08a !important; }
.bg-status-danger { background: #fecaca !important; }
.bg-status-muted { background: #e5e7eb !important; }

/* Code block styling */
.code-block {
    white-space: pre-wrap !important;
    border: 1px solid #dee2e6 !important;
    padding: 15px !important;
    background-color: #f8f9fa !important;
    border-radius: 3px !important;
}

/* Scrollable container */
.scroll-y-auto { overflow-y: auto !important; }
.scroll-x-auto { overflow-x: auto !important; }
.max-h-480 { max-height: 480px !important; }

/* Icon box (for dashboard/stats) */
.icon-box-60 {
    width: 60px !important;
    height: 60px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* Image container with border */
.img-container-bordered {
    max-width: 500px !important;
    border: 1px solid #ddd !important;
    border-radius: 8px !important;
}

/* ========================================================================
   Common Inline Color Replacements
   ======================================================================== */

/* Text colors - common inline style="color:" replacements */
.text-gray-400 { color: #9ca3af !important; }
.text-gray-500 { color: var(--color-secondary) !important; }
.text-gray-600 { color: #495057 !important; }
.text-gray-700 { color: #333333 !important; }
.text-slate { color: #2c3e50 !important; }
.text-muted-light { color: #7f8c8d !important; }

/* Background colors - common inline style="background:" replacements */
.bg-gray-50 { background-color: #f9fafb !important; }
.bg-gray-100 { background-color: #f8f9fa !important; }
.bg-gray-200 { background-color: var(--bs-gray-light) !important; }
.bg-gray-300 { background-color: #dee2e6 !important; }
.bg-slate-50 { background-color: var(--color-bg-subtle) !important; }
.bg-slate-100 { background-color: var(--color-bg-muted) !important; }
.bg-teal-50 { background-color: var(--color-primary-bg) !important; }
.bg-teal-100 { background-color: rgba(var(--color-primary-rgb), 0.2) !important; }

/* Border colors */
.border-gray-200 { border-color: var(--bs-gray-light) !important; }
.border-gray-300 { border-color: #dee2e6 !important; }
.border-teal { border-color: var(--color-primary) !important; }

/* ========================================================================
   Common Component Patterns (DRY replacements)
   ======================================================================== */

/* Badge/pill patterns */
.pill-badge {
    display: inline-flex !important;
    align-items: center !important;
    padding: 0.2rem 0.5rem !important;
    border-radius: 20px !important;
    font-size: 0.75rem !important;
    font-weight: 500 !important;
}

.pill-badge-sm {
    padding: 0.15rem 0.4rem !important;
    font-size: 0.65rem !important;
}

.pill-badge-lg {
    padding: 0.35rem 0.75rem !important;
    font-size: 0.8rem !important;
}

/* Icon box patterns (dashboard stats) */
.icon-box {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 10px !important;
}

.icon-box-40 {
    width: 40px !important;
    height: 40px !important;
}

.icon-box-48 {
    width: 48px !important;
    height: 48px !important;
}

.icon-box-60 {
    width: 60px !important;
    height: 60px !important;
}

/* Letter spacing */
.tracking-wide { letter-spacing: 0.5px !important; }
.tracking-wider { letter-spacing: 1px !important; }
.tracking-widest { letter-spacing: 2px !important; }

/* Line clamp utilities */
.line-clamp-1 {
    display: -webkit-box !important;
    -webkit-line-clamp: 1 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

.line-clamp-2 {
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

.line-clamp-3 {
    display: -webkit-box !important;
    -webkit-line-clamp: 3 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

/* Opacity utilities */
.opacity-70 { opacity: 0.7 !important; }
.opacity-80 { opacity: 0.8 !important; }
.opacity-90 { opacity: 0.9 !important; }

/* Gap utilities (extending Bootstrap) */
.gap-xs { gap: 0.25rem !important; }
.gap-sm { gap: 0.5rem !important; }
.gap-md { gap: 0.75rem !important; }
.gap-lg { gap: 1rem !important; }
.gap-xl { gap: 1.5rem !important; }

/* ==========================================================================
   Animation Utilities
   ========================================================================== */

@keyframes bounceIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.animate-bounce-in {
    animation: bounceIn 0.8s;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.animate-scale-in {
    animation: scaleIn 0.5s ease-out;
}

/* --- ./utilities/gradients.css --- */
/* ========================================================================
   JMATHS GRADIENT UTILITIES
   Single source of truth for gradient backgrounds across the site

   Usage in templates:
   <div class="bg-gradient-primary">...</div>
   <div class="bg-gradient-subtle">...</div>
   ======================================================================== */

/* ========================================================================
   PRIMARY GRADIENTS - Brand colors
   ======================================================================== */

.bg-gradient-primary {
    background: var(--gradient-primary) !important;
    color: white;
}

.bg-gradient-primary-soft {
    background: var(--gradient-primary-soft) !important;
}

.bg-gradient-accent {
    background: var(--gradient-accent) !important;
    color: white;
}

.bg-gradient-cool {
    background: var(--gradient-cool) !important;
    color: white;
}

/* ========================================================================
   SUBTLE GRADIENTS - For backgrounds, cards, headers
   ======================================================================== */

.bg-gradient-subtle {
    background: var(--gradient-subtle) !important;
}

.bg-gradient-light {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%) !important;
}

.bg-gradient-muted {
    background: linear-gradient(135deg, var(--color-bg-muted) 0%, var(--color-border) 100%) !important;
}

/* ========================================================================
   SEMANTIC GRADIENTS - Status/State colors
   ======================================================================== */

.bg-gradient-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%) !important;
}

.bg-gradient-success-solid {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-hover) 100%) !important;
    color: white;
}

.bg-gradient-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%) !important;
}

.bg-gradient-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%) !important;
}

.bg-gradient-info {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%) !important;
}

.bg-gradient-info-solid {
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%) !important;
    color: white;
}

/* ========================================================================
   MODAL/CARD HEADER GRADIENTS
   ======================================================================== */

.modal-header-gradient {
    background: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(var(--color-primary-rgb), 0.12) 100%);
}

.card-header-gradient {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

/* ========================================================================
   PROGRESS BAR GRADIENTS
   ======================================================================== */

.progress-gradient {
    background: linear-gradient(to right, #f0f4ff, #e0e7ff);
    border: 1px solid #c7d2fe;
}

/* ========================================================================
   DARK GRADIENTS - Admin/Dashboard backgrounds
   ======================================================================== */

.bg-gradient-dark {
    background: linear-gradient(135deg, var(--jmaths-gray-900) 0%, var(--color-text) 100%) !important;
    color: white;
}

.bg-gradient-dark-primary {
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%) !important;
    color: white;
}

/* ========================================================================
   TEXT WITH GRADIENT BACKGROUNDS
   ======================================================================== */

[class*="bg-gradient-"] {
    /* Ensure text remains readable */
}

.bg-gradient-primary,
.bg-gradient-accent,
.bg-gradient-cool,
.bg-gradient-success-solid,
.bg-gradient-info-solid,
.bg-gradient-dark,
.bg-gradient-dark-primary {
    color: white;
}

.bg-gradient-success,
.bg-gradient-warning,
.bg-gradient-danger,
.bg-gradient-info,
.bg-gradient-subtle,
.bg-gradient-light,
.bg-gradient-muted {
    color: var(--text);
}

/* --- ./components/navbar.css --- */
/* ========================================================================
   JMATHS NAVBAR COMPONENT
   Centralized navbar styling for consistent appearance across all pages
   ======================================================================== */

/* ========================================================================
   NAVBAR BASE STYLES
   ======================================================================== */

.jmaths-nav {
    background: white;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-index-sticky);
}

/* Ensure dropdowns can still overflow */
.jmaths-nav .dropdown-menu {
    position: absolute !important;
}

/* Navbar brand */
.navbar-brand {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
    color: var(--primary) !important;
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: var(--transition-base);
}

.navbar-brand:hover {
    color: var(--primary-hover) !important;
    text-decoration: none;
}

.navbar-brand .brand-text {
    color: var(--primary);
    font-weight: var(--font-weight-bold);
}

.navbar-brand i {
    color: var(--primary);
    margin-right: var(--spacing-sm);
}

/* Student view badge */
.navbar-brand .badge {
    font-size: var(--font-size-xs);
    padding: 0.25em 0.5em;
    margin-left: var(--spacing-sm);
    background-color: var(--warning);
    color: var(--dark);
}

/* ========================================================================
   NAVIGATION PILLS
   ======================================================================== */

.nav-pills .nav-link {
    color: var(--text);
    background: transparent;
    border: none;
    border-radius: var(--radius-base);
    padding: var(--spacing-sm) var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.nav-pills .nav-link:hover {
    color: var(--primary);
    background-color: rgba(var(--jmaths-medium-blue-rgb), 0.1);
}

.nav-pills .nav-link.active {
    color: white;
    background-color: var(--primary);
}

.nav-pills .nav-link i {
    margin-right: var(--spacing-xs);
    font-size: 0.9em;
}

/* ========================================================================
   DROPDOWN MENUS
   ======================================================================== */

.dropdown-menu {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
    background: white;
    margin-top: var(--spacing-xs);
    z-index: var(--z-index-modal);
}

/* Prevent dropdown overlap issues */
.nav-item.dropdown {
    position: relative;
    z-index: auto;
}

.nav-item.dropdown.show {
    z-index: 1051;
}

/* Ensure notification badges don't interfere with dropdowns */
.nav-link .badge {
    pointer-events: none;
    z-index: 1;
}

.dropdown-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
}

.dropdown-item:hover {
    background-color: rgba(var(--jmaths-medium-blue-rgb), 0.1);
    color: var(--primary);
}

.dropdown-item:active {
    background-color: var(--primary);
    color: white;
}

.dropdown-item i {
    margin-right: var(--spacing-sm);
    width: 16px;
    text-align: center;
    opacity: 0.7;
}

.dropdown-item:hover i {
    opacity: 1;
}

/* Dropdown headers */
.dropdown-header {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.dropdown-divider {
    margin: var(--spacing-sm) 0;
    border-color: var(--border);
}

/* ========================================================================
   MESSAGES BELL
   ======================================================================== */

/* Bell icon container */
.nav-link.position-relative {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

/* Bell icon */
.nav-link .fas.fa-bell {
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: var(--transition-base);
}

.nav-link:hover .fas.fa-bell {
    color: var(--primary);
    animation: bell-ring 0.5s ease-in-out;
}

/* Bell badge */
.announcement-count-badge-nav {
    position: absolute !important;
    top: -8px !important;
    right: -8px !important;
    font-size: 0.65rem !important;
    min-width: 16px !important;
    height: 16px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: var(--radius-full) !important;
    background-color: var(--warning) !important;
    color: var(--dark) !important;
    font-weight: var(--font-weight-bold) !important;
    border: 2px solid white !important;
    box-shadow: var(--shadow-sm) !important;
    animation: badge-pulse 2s ease-in-out infinite;
}

/* ========================================================================
   ANIMATIONS
   ======================================================================== */

@keyframes bell-ring {
    0%, 100% { transform: rotate(0deg); }
    10%, 30% { transform: rotate(-10deg); }
    20% { transform: rotate(10deg); }
}

@keyframes badge-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ========================================================================
   RESPONSIVE DESIGN
   ======================================================================== */

/* Mobile navigation */
@media (max-width: 992px) {
    .navbar-brand {
        font-size: var(--font-size-lg);
    }

    .nav-pills .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }

    .dropdown-menu {
        margin-top: 0;
        border-radius: var(--radius-sm);
    }
}

@media (max-width: 768px) {
    .jmaths-nav .container-fluid {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }

    .navbar-brand .brand-text {
        font-size: var(--font-size-base);
    }

    /* Hide some navigation items on mobile */
    .nav-pills .nav-item:not(.dropdown):nth-child(n+3) {
        display: none;
    }
}

/* ========================================================================
   THEME VARIATIONS
   ======================================================================== */

/* Dark navbar theme (future ready) */
.jmaths-nav.navbar-dark {
    background: var(--dark);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .navbar-brand,
.navbar-dark .nav-link {
    color: white !important;
}

.navbar-dark .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .dropdown-menu {
    background: var(--dark);
    border-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .dropdown-item {
    color: white;
}

.navbar-dark .dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ========================================================================
   ACCESSIBILITY & INTERACTIONS
   ======================================================================== */

/* Focus states */
.nav-link:focus {
    box-shadow: 0 0 0 2px var(--primary);
    outline: none;
}

.dropdown-item:focus {
    background-color: rgba(var(--jmaths-medium-blue-rgb), 0.1);
    outline: none;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .jmaths-nav {
        border-bottom: 2px solid var(--text);
    }

    .nav-link {
        border: 1px solid transparent;
    }

    .nav-link:hover,
    .nav-link:focus {
        border-color: var(--primary);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .nav-link,
    .dropdown-item,
    .announcement-count-badge-nav {
        transition: none;
        animation: none;
    }
}

/* ========================================================================
   ADMIN PORTAL LINK
   Uses theme gradient instead of hardcoded purple
   ======================================================================== */

.admin-portal-link {
    background: var(--gradient-primary) !important;
    color: white !important;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.admin-portal-link:hover {
    filter: brightness(1.1);
    color: white !important;
}

/* Mobile variant */
.mobile-nav-link.admin-portal-link {
    margin: var(--spacing-sm) var(--spacing-md);
}

/* ========================================================================
   NAV PARTIAL UTILITY CLASSES (introduced by nav/refactor split)
   Replaces inline style="..." in templates per frontend.md rule.
   ======================================================================== */

/* Role badge in account dropdown trigger */
.nav-role-badge {
    margin-left: var(--spacing-sm);
    vertical-align: middle;
}
.nav-role-badge-inline {
    font-size: 0.65rem;
}
.nav-role-badge-full {
    /* Default Bootstrap badge size — mobile uses full pill */
}

/* Unread-message count badge on the inbox icon */
.nav-msg-badge {
    font-size: 0.6rem;
}

/* FREE tier badge on the mobile user-info card */
.nav-free-badge {
    border: 1px solid var(--color-secondary);
}

/* External-link icon next to admin-portal / Django-admin entries */
.nav-ext-icon {
    font-size: 0.75rem;
}

/* Support icon in the public navbar (debug-only) */
.nav-coffee-icon {
    color: #c17817;
}

/* Coming-Soon modal icon */
.nav-coming-soon-icon {
    font-size: 3rem;
    color: var(--bs-secondary);
}

/* Mobile sign-in CTA — replaces inline style on the anon mobile drawer */
.mobile-sign-in-cta {
    background: var(--jmaths-medium-blue);
    color: white;
    border-radius: 8px;
    margin: 0.5rem 0.75rem;
    justify-content: center;
}
.mobile-sign-in-cta:hover {
    filter: brightness(1.1);
    color: white;
}

/* Section tab strip — per-section navigation under the navbar */
.section-tabs {
    border-bottom: 1px solid var(--bs-border-color);
    background: var(--bs-body-bg);
    position: sticky;
    top: var(--jm-navbar-height);
    z-index: calc(var(--z-index-sticky) - 1);
}
.section-tabs .container-fluid {
    display: flex;
    gap: .25rem;
    overflow-x: auto;
}
.section-tab {
    padding: .6rem .9rem;
    color: var(--bs-secondary-color);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}
.section-tab:hover {
    color: var(--bs-body-color);
}
.section-tab.active {
    color: var(--bs-primary);
    border-bottom-color: var(--bs-primary);
    font-weight: 600;
}

/* AI credit meter — subtle "energy bar" in the user dropdown */
.ai-meter {
    padding: 0.5rem 1rem 0.6rem;
}

.ai-meter-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.ai-meter-label .fa-bolt { color: var(--primary); }

.ai-meter-pct {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
}

.ai-meter-track {
    height: 6px;
    border-radius: 999px;
    background: var(--border);
    overflow: hidden;
}

.ai-meter-fill {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: var(--primary);
    transition: width 0.4s ease;
}

.ai-meter-low .ai-meter-fill { background: var(--bs-warning); }
.ai-meter-crit .ai-meter-fill { background: var(--bs-danger); }
.ai-meter-crit .ai-meter-pct { color: var(--bs-danger); }

/* --- ./components/cards.css --- */
/* ========================================================================
   JMATHS CARD VARIANTS
   Specialized card types - base .card styles in modern-bootstrap.css
   ======================================================================== */

/* --------------------------------------------------------------------------
   DASHBOARD CARDS
   -------------------------------------------------------------------------- */
.dashboard-card {
    height: 100%;
    min-height: 120px;
}

.dashboard-card .card-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Dashboard card with icon */
.dashboard-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1) 0%, rgba(var(--color-info-rgb), 0.1) 100%);
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   STAT CARDS
   -------------------------------------------------------------------------- */
.stat-card {
    text-align: center;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-info) 100%);
}

.stat-card .stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1) 0%, rgba(var(--color-info-rgb), 0.1) 100%);
    color: var(--color-primary);
}

.stat-card .stat-number {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card .stat-change {
    font-size: 0.75rem;
    margin-top: 0.5rem;
}

.stat-card .stat-change.positive {
    color: var(--color-success);
}

.stat-card .stat-change.negative {
    color: var(--color-danger);
}

/* Stat card color variants */
.stat-card.stat-primary .stat-icon { background: rgba(var(--color-primary-rgb), 0.1); color: var(--color-primary); }
.stat-card.stat-success .stat-icon { background: rgba(var(--color-success-rgb), 0.1); color: var(--color-success); }
.stat-card.stat-warning .stat-icon { background: rgba(var(--color-warning-rgb), 0.1); color: var(--color-warning); }
.stat-card.stat-danger .stat-icon { background: rgba(var(--color-danger-rgb), 0.1); color: var(--color-danger); }
.stat-card.stat-info .stat-icon { background: rgba(var(--color-info-rgb), 0.1); color: var(--color-info); }

.stat-card.stat-primary::before { background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-hover) 100%); }
.stat-card.stat-success::before { background: linear-gradient(90deg, var(--color-success) 0%, var(--color-success-hover) 100%); }
.stat-card.stat-warning::before { background: linear-gradient(90deg, var(--color-warning) 0%, var(--color-warning-hover) 100%); }
.stat-card.stat-danger::before { background: linear-gradient(90deg, var(--color-danger) 0%, var(--color-danger-hover) 100%); }
.stat-card.stat-info::before { background: linear-gradient(90deg, var(--color-info) 0%, var(--color-info-hover) 100%); }

/* --------------------------------------------------------------------------
   UNIT CARDS
   -------------------------------------------------------------------------- */
.unit-card {
    margin-bottom: 1rem;
    border-left: 4px solid var(--color-primary);
    border-radius: 0 12px 12px 0;
}

.unit-card:hover {
    border-left-color: var(--color-primary-hover);
}

.unit-card.locked {
    opacity: 0.7;
    border-left-color: var(--color-danger);
}

.unit-card.completed {
    border-left-color: var(--color-success);
}

.unit-card .unit-number {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   LESSON CARDS
   -------------------------------------------------------------------------- */
.lesson-card {
    margin-bottom: 0.75rem;
    border-left: 3px solid var(--color-info);
    border-radius: 0 10px 10px 0;
    transition: all 200ms ease;
}

.lesson-card:hover {
    border-left-width: 4px;
    transform: translateX(2px);
}

.lesson-card.completed {
    border-left-color: var(--color-success);
    background: linear-gradient(90deg, rgba(var(--color-success-rgb), 0.04) 0%, transparent 100%);
}

.lesson-card.in-progress {
    border-left-color: var(--color-warning);
    background: linear-gradient(90deg, rgba(var(--color-warning-rgb), 0.04) 0%, transparent 100%);
}

/* --------------------------------------------------------------------------
   RESOURCE CARDS
   -------------------------------------------------------------------------- */
.resource-card {
    position: relative;
    padding: 1rem;
    margin-bottom: 0.5rem;
    background: var(--color-bg-subtle);
    border-radius: 10px;
    border: 1px solid transparent;
    transition: all 200ms ease;
}

.resource-card:hover {
    background: var(--color-bg-muted);
    border-color: rgba(var(--color-primary-rgb), 0.2);
    transform: translateX(4px);
}

.resource-card .resource-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    color: var(--color-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* --------------------------------------------------------------------------
   FEATURE CARDS (Landing pages)
   -------------------------------------------------------------------------- */
.feature-card {
    text-align: center;
    padding: 2rem 1.5rem;
}

.feature-card .feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1) 0%, rgba(var(--color-info-rgb), 0.1) 100%);
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   PRICING CARDS
   -------------------------------------------------------------------------- */
.pricing-card {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.pricing-card.featured {
    border: 2px solid var(--color-primary);
    transform: scale(1.02);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 1rem;
    border-radius: 20px;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   MOBILE RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .stat-card {
        padding: 1.25rem;
    }

    .stat-card .stat-number {
        font-size: 1.75rem;
    }

    .stat-card .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }

    .feature-card {
        padding: 1.5rem 1rem;
    }

    .feature-card .feature-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }

    .pricing-card.featured {
        transform: none;
    }
}

/* --- ./components/exploration.css --- */
/* ========================================================================
   EXPLORATION COMPONENT STYLES
   Reusable styles for the exploration module
   ======================================================================== */

/* ====================================================================
   WORKFLOW HEADER
   ==================================================================== */
.exploration-workflow {
    background: var(--gradient-primary);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.exploration-workflow .workflow-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.exploration-workflow .workflow-step a {
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.exploration-workflow .workflow-step a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ====================================================================
   EXPLORATION CARDS
   ==================================================================== */
.exploration-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: var(--transition-slow);
    overflow: hidden;
    background: white;
}

.exploration-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-primary-lg);
    border-color: var(--primary);
}

.exploration-card .card-img-top {
    transition: transform 0.3s ease;
    height: 160px;
    object-fit: cover;
}

.exploration-card:hover .card-img-top {
    transform: scale(1.05);
}

.exploration-card-placeholder {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ====================================================================
   BADGES
   ==================================================================== */
.exploration-badge-topic {
    font-size: var(--font-size-xs);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
}

.exploration-badge-difficulty {
    font-size: var(--font-size-xs);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    background-color: var(--jmaths-bg-primary-soft);
    color: var(--primary);
}

.exploration-badge-time {
    font-size: var(--font-size-xs);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    background-color: white;
    border: 1px solid var(--border);
    color: var(--text);
}

/* ====================================================================
   PAGINATION (Exploration-specific styling)
   ==================================================================== */
.exploration-pagination {
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: white;
    padding: var(--spacing-sm);
}

.exploration-pagination .page-link {
    border-radius: var(--radius-md);
    border: none;
    color: var(--primary);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-base);
    padding: var(--spacing-sm) var(--spacing-md);
}

.exploration-pagination .page-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.exploration-pagination .page-item.active .page-link {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

/* ====================================================================
   DRAFT EDITOR
   ==================================================================== */
.exploration-draft-section {
    background: var(--background-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.exploration-draft-section h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

/* ====================================================================
   RUBRIC DISPLAY
   ==================================================================== */
.exploration-rubric {
    background: white;
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.exploration-rubric-criterion {
    border-left: 4px solid var(--primary);
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* ====================================================================
   RESPONSIVE
   ==================================================================== */
@media (max-width: 768px) {
    .exploration-workflow .workflow-steps {
        gap: var(--spacing-sm);
    }

    .exploration-card {
        margin-bottom: var(--spacing-md);
    }
}

/* ========================================================================
   SAMPLE PAPERS PAGE STYLES
   Migrated from inline styles for DRY compliance
   ======================================================================== */
    /* Header bar with tabs and links */
    .sample-header-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        margin-bottom: 1.5rem;
        background: rgba(255,255,255,0.95);
        padding: 0.5rem 0.75rem;
        border-radius: 30px;
        box-shadow: 0 2px 12px rgba(0,0,0,0.1);
        position: sticky;
        top: 70px;
        z-index: 100;
    }

    .sample-tabs {
        display: inline-flex;
        gap: 0.25rem;
    }

    .sample-tab {
        padding: 0.5rem 1rem;
        border: none;
        border-radius: 20px;
        background: transparent;
        cursor: pointer;
        transition: all 0.2s ease;
        text-align: center;
        white-space: nowrap;
    }

    .sample-tab:hover { background: rgba(0,0,0,0.05); }
    .sample-tab.active { background: white; box-shadow: 0 2px 8px rgba(0,0,0,0.12); }

    .sample-tab .score { font-size: 0.9rem; font-weight: 600; }
    .sample-tab.acceptable .score { color: #dc3545; }
    .sample-tab.good .score { color: #f39c12; }
    .sample-tab.excellent .score { color: #28a745; }
    .sample-tab.excellent-hl .score { color: var(--jmaths-dark-blue); } /* Was purple #6f42c1, changed to teal */

    .sample-tab.locked {
        opacity: 0.6;
        cursor: pointer;
    }
    .sample-tab.locked .score { color: var(--color-secondary) !important; }

    .header-links {
        display: flex;
        gap: 0.75rem;
    }

    .header-link {
        padding: 0.4rem 0.75rem;
        font-size: 0.85rem;
        color: #4a5568;
        text-decoration: none;
        border-radius: 15px;
        transition: all 0.2s ease;
    }

    .header-link:hover {
        background: rgba(0,0,0,0.05);
        color: #2d3748;
    }

    .header-link i {
        margin-right: 0.25rem;
    }

    /* Main content area */
    .content-wrapper {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 2rem;
    }

    /* Paper styling */
    .paper {
        background: white;
        border-radius: 16px;
        padding: 3rem;
        box-shadow: 0 2px 12px rgba(0,0,0,0.08);
        font-family: Georgia, 'Times New Roman', serif;
        line-height: 1.8;
        font-size: 1.05rem;
    }

    .paper h1 { font-size: 1.75rem; margin-bottom: 1.5rem; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
    .paper h2 { font-size: 1.35rem; margin: 2rem 0 1rem; color: #2d3748; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
    .paper p { margin-bottom: 1rem; }
    .paper img { max-width: 100%; border-radius: 8px; margin: 1rem 0; }
    .paper table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.95rem; }
    .paper th, .paper td { border: 1px solid var(--color-border); padding: 0.5rem; }
    .paper th { background: #f7fafc; }

    /* Annotation icons */
    .annotation-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 22px;
        height: 22px;
        border-radius: 50%;
        font-size: 12px;
        font-weight: 600;
        color: white;
        cursor: pointer;
        margin: 0 3px;
        transition: transform 0.2s ease;
        vertical-align: middle;
    }

    .annotation-icon:hover { transform: scale(1.2); }
    .annotation-icon.active { transform: scale(1.3); box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.3); }

    .annotation-icon.criterion-A { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
    .annotation-icon.criterion-B { background: linear-gradient(135deg, var(--jmaths-gray-600), var(--color-text-muted)); } /* Was violet, changed to slate */
    .annotation-icon.criterion-C { background: linear-gradient(135deg, #ec4899, #f472b6); }
    .annotation-icon.criterion-D { background: linear-gradient(135deg, var(--color-warning), #fbbf24); }
    .annotation-icon.criterion-E { background: linear-gradient(135deg, var(--color-success), #34d399); }

    .annotation-icon.positive { box-shadow: 0 0 0 2px var(--color-success), 0 2px 6px rgba(0,0,0,0.2); }
    .annotation-icon.negative { box-shadow: 0 0 0 2px var(--color-danger), 0 2px 6px rgba(0,0,0,0.2); }
    .annotation-icon.neutral { box-shadow: 0 0 0 2px #eab308, 0 2px 6px rgba(0,0,0,0.2); }

    /* Connector line */
    .connector-svg {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: var(--z-index-dropdown);
    }

    .connector-line {
        stroke: var(--primary);
        stroke-width: 2;
        stroke-dasharray: 6, 4;
        fill: none;
        will-change: d;
    }

    /* Sidebar */
    .sidebar {
        position: sticky;
        top: 140px;
        align-self: start;
    }

    .sidebar-comment {
        background: white;
        border-radius: 12px;
        padding: 1.5rem;
        box-shadow: 0 2px 12px rgba(0,0,0,0.08);
        border-left: 4px solid var(--primary);
        display: none;
    }

    .sidebar-comment.visible { display: block; animation: slideIn 0.2s ease-out; }
    .sidebar-comment.positive { border-color: var(--color-success); }
    .sidebar-comment.negative { border-color: var(--color-danger); }
    .sidebar-comment.neutral { border-color: #eab308; }

    .comment-close {
        position: absolute;
        top: 0.75rem;
        right: 0.75rem;
        background: none;
        border: none;
        font-size: 1.25rem;
        color: #a0aec0;
        cursor: pointer;
        padding: 0;
        line-height: 1;
    }
    .comment-close:hover { color: #4a5568; }
    .sidebar-comment { position: relative; }

    @keyframes slideIn {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .comment-badge {
        display: inline-block;
        padding: 0.25rem 0.75rem;
        border-radius: 4px;
        font-size: 0.8rem;
        font-weight: 600;
        margin-bottom: 0.75rem;
        color: white;
    }

    .comment-badge.criterion-A { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
    .comment-badge.criterion-B { background: linear-gradient(135deg, var(--jmaths-gray-600), var(--color-text-muted)); } /* Was violet, changed to slate */
    .comment-badge.criterion-C { background: linear-gradient(135deg, #ec4899, #f472b6); }
    .comment-badge.criterion-D { background: linear-gradient(135deg, var(--color-warning), #fbbf24); }
    .comment-badge.criterion-E { background: linear-gradient(135deg, var(--color-success), #34d399); }
    .comment-content { font-size: 0.95rem; line-height: 1.6; color: #2d3748; }

    .sidebar-placeholder {
        background: white;
        border-radius: 12px;
        padding: 2rem;
        text-align: center;
        color: #a0aec0;
        box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    }

    .sidebar-placeholder i { font-size: 2rem; margin-bottom: 0.5rem; display: block; opacity: 0.3; }

    /* Sample content */
    .sample-content { display: none; }
    .sample-content.active { display: block; }

    /* Assessment report tabs */
    .assessment-card {
        background: white;
        border-radius: 12px;
        padding: 1.5rem;
        margin-top: 2rem;
        box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    }

    .assessment-card .nav-tabs { border-bottom: 2px solid var(--color-border); }
    .assessment-card .nav-tabs .nav-link {
        border: none;
        color: var(--color-secondary);
        font-weight: 600;
        font-size: 0.85rem;
        padding: 0.75rem 1rem;
    }
    .assessment-card .nav-tabs .nav-link.active {
        color: var(--primary);
        border-bottom: 2px solid var(--primary);
        margin-bottom: -2px;
    }
    .assessment-card .tab-content { padding-top: 1.25rem; }

    .criterion-score {
        display: inline-block;
        background: var(--color-bg-muted);
        padding: 0.25rem 0.75rem;
        border-radius: 20px;
        font-weight: 700;
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
    }

    .criterion-score.low { background: #fee2e2; color: #991b1b; }
    .criterion-score.mid { background: #fef3c7; color: #92400e; }
    .criterion-score.high { background: #dcfce7; color: #166534; }

    /* Locked overlay */
    .locked-wrapper { position: relative; }
    .locked-wrapper .paper { filter: blur(8px); pointer-events: none; }
    .locked-overlay {
        position: absolute;
        inset: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255,255,255,0.9);
        border-radius: 16px;
        z-index: 10;
    }
    .locked-message { text-align: center; padding: 2rem; }
    .locked-message h3 { margin-bottom: 0.5rem; }

    /* Marks table */
    .marks-card {
        background: white;
        padding: 1.5rem;
        border-radius: 12px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        margin-bottom: 2rem;
    }

    .marks-table { width: 100%; font-size: 0.85rem; border-collapse: collapse; }
    .marks-table th { background: #f7fafc; padding: 0.5rem; font-weight: 600; font-size: 0.75rem; border-bottom: 2px solid var(--color-border); text-align: center; }
    .marks-table td { padding: 0.5rem; border-bottom: 1px solid var(--color-border); text-align: center; }
    .marks-table .sample-title { text-align: left; min-width: 180px; }
    .marks-table th.sample-title { text-align: left; }

    .quality-badge {
        display: inline-block;
        padding: 0.2rem 0.5rem;
        border-radius: 4px;
        font-weight: 600;
        font-size: 0.7rem;
        text-decoration: none;
    }
    .quality-badge.acceptable { background: #fee2e2; color: #991b1b; }
    .quality-badge.good { background: #fef3c7; color: #92400e; }
    .quality-badge.excellent { background: #dcfce7; color: #166534; }
    .quality-badge.excellent-hl { background: #ecfeff; color: #0e7490; } /* Was purple, changed to cyan */

    .sl-col { background: #e3f2fd !important; }

    /* Placeholder styles for Desmos/GeoGebra */
    .desmos-placeholder, .geogebra-placeholder {
        background: linear-gradient(135deg, var(--color-bg-subtle) 0%, var(--color-border) 100%);
        border: 2px dashed var(--color-text-light);
        border-radius: 12px;
        padding: 2rem;
        margin: 1.5rem 0;
        text-align: center;
    }
    .desmos-placeholder .placeholder-content,
    .geogebra-placeholder .placeholder-content {
        color: var(--color-text-muted);
    }
    .geogebra-placeholder {
        background: linear-gradient(135deg, #fefce8 0%, #fef3c7 100%);
        border-color: var(--color-warning);
    }

    /* Figure container */
    .figure-container {
        margin: 1.5rem 0;
        text-align: center;
    }
    .figure-image {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    .figure-caption {
        margin-top: 0.5rem;
        color: var(--color-text-muted);
        font-size: 0.9rem;
    }
    .hl-col { background: #fce4ec !important; }

    /* Full-width assessment card */
    .assessment-report {
        background: white;
        border-radius: 16px;
        padding: 2rem;
        margin-top: 2rem;
        box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    }

    .assessment-report h4 {
        margin-bottom: 1.5rem;
        color: #2d3748;
    }

    /* Back to top button */
    .back-to-top-btn {
        position: fixed;
        bottom: 2rem;
        right: 2rem;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        border: none;
        background: white;
        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.2s ease;
        color: #4a5568;
        z-index: 1001;
        opacity: 0;
        visibility: hidden;
    }

    .back-to-top-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(0,0,0,0.2);
        background: var(--primary);
        color: white;
    }

    .back-to-top-btn.visible {
        opacity: 1;
        visibility: visible;
    }

    /* Criteria modal */
    .criteria-modal .criterion-card { transition: all 0.2s ease; border: 1px solid var(--color-border); }
    .criteria-modal .criterion-card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); border-color: var(--primary); }
    .criteria-modal .table { margin-bottom: 0; }
    .criteria-modal .table td, .criteria-modal .table th { vertical-align: middle; }

    @media (max-width: 1024px) {
        .content-wrapper { grid-template-columns: 1fr; }
        .sidebar { position: relative; top: 0; order: -1; margin-bottom: 1rem; }
    }

    /* Performance: CSS containment for heavy elements */
    .paper { contain: content; }
    .sample-content:not(.active) { content-visibility: hidden; }

/* --- ./components/exams.css --- */
/* ========================================================================
   EXAMS COMPONENT STYLES
   Reusable styles for the exam paper builder and question library
   ======================================================================== */

/* ====================================================================
   BREADCRUMB / WORKFLOW
   ==================================================================== */
.exam-workflow-breadcrumb {
    background: var(--gradient-primary);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.exam-workflow-breadcrumb::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    pointer-events: none;
}

/* ====================================================================
   QUESTION CARDS
   ==================================================================== */
.exam-question-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    background: white;
    transition: var(--transition-base);
}

.exam-question-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-primary);
}

.exam-question-card.selected {
    border-color: var(--primary);
    background-color: var(--jmaths-bg-primary-soft);
}

/* ====================================================================
   PAPER BUILDER
   ==================================================================== */
.exam-paper-builder {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-xl);
}

.exam-paper-preview {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: sticky;
    top: var(--spacing-lg);
}

/* ====================================================================
   ANALYTICS DASHBOARD
   ==================================================================== */
.exam-stats-card {
    background: var(--gradient-primary-soft);
    color: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
}

.exam-stats-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.exam-stats-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ====================================================================
   MATH CONTENT - Prevent inline math from breaking across lines
   ==================================================================== */
.latex-content,
.math-inline,
mjx-container,
.katex,
.MathJax {
    white-space: nowrap;
    display: inline-block;
}

.katex-display,
.MathJax_Display {
    white-space: normal;
    display: block;
}

/* IB Exam Paper Question Modal */
.ib-exam-paper {
    font-family: var(--font-question);
    font-size: 1.1rem;
    line-height: 1.7;
    padding: 0.5rem 0;
}
.ib-exam-paper .question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary, var(--color-primary));
}
.ib-exam-paper .question-number {
    font-weight: 700;
    font-size: 1.15rem;
}
.ib-exam-paper .question-marks {
    font-weight: 600;
    color: #6b7280;
    font-size: 1rem;
}
.ib-exam-paper .question-context {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.8;
}
.ib-exam-paper .part-row {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
    padding: 0.3rem 0;
}
.ib-exam-paper .part-label {
    font-weight: 700;
    color: var(--color-primary-hover, var(--color-primary-hover));
    flex-shrink: 0;
    min-width: 1.6rem;   /* hug the label; spacing from row gap only */
    margin-right: 0;
    font-size: 1.05rem;
}
.ib-exam-paper .part-content {
    flex: 1;
    min-width: 0;
    font-size: 1.1rem;
    line-height: 1.7;
    /* Override the compact-list .part-content truncation (builder.css) so the
       full question text wraps instead of being clipped on the right. */
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    overflow-wrap: anywhere;
}
.ib-exam-paper .part-marks {
    flex-shrink: 0;
    font-weight: 600;
    color: #6b7280;
    font-size: 0.9rem;
    background: #f3f4f6;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    white-space: nowrap;
}

/* Prevent math equations in question content from breaking */
.exam-question-card .latex-content,
.question-content .latex-content,
.part-content .latex-content {
    white-space: nowrap;
}

/* ====================================================================
   MARK SCHEME STRUCTURAL HEADINGS
   IB MS uses \section*{EITHER} / \section*{THEN} / \section*{METHOD 1}
   to organise alternative solution paths. Render as compact pill labels.
   ==================================================================== */
.ms-section {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--color-primary-hover, var(--color-primary-hover));
    background: var(--surface-secondary, #f3f4f6);
    border-left: 3px solid var(--color-primary, var(--color-primary));
    padding: 0.25rem 0.6rem;
    margin: 0.5rem 0 0.4rem;
    border-radius: 0 4px 4px 0;
}
.ms-subsection {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    color: #6b7280;
    padding: 0.15rem 0.5rem;
    margin: 0.4rem 0 0.3rem;
}

/* ====================================================================
   MISSING DIAGRAM PLACEHOLDER
   For Mathpix-extracted papers whose CDN image URLs expired before the
   image-downloader caught them (it missed \includegraphics blocks).
   ==================================================================== */
.missing-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    margin: 0.75rem 0;
    padding: 1rem;
    background: #fafafa;
    border: 1px dashed #d1d5db;
    border-radius: 6px;
    color: #6b7280;
    font-size: 0.85rem;
    font-style: italic;
    text-align: center;
}

/* Print styles - ensure math doesn't break across lines */
@media print {
    .latex-content,
    .math-inline,
    mjx-container,
    .katex {
        white-space: nowrap;
        display: inline-block;
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* ====================================================================
   RESPONSIVE
   ==================================================================== */
@media (max-width: 1024px) {
    .exam-paper-builder {
        grid-template-columns: 1fr;
    }

    .exam-paper-preview {
        position: static;
    }
}

/* ========================================================================
   INTERACTIVE PRACTICE STYLES
   Migrated from inline styles for DRY compliance
   ======================================================================== */
/* Practice Mode Layout */
.practice-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem;
    padding-top: 0;
    min-height: 100vh;
}

/* Floating Header + Progress */
.practice-header-wrapper {
    position: sticky;
    top: 60px;
    z-index: 100;
    background: white;
    padding-top: 1rem;
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

/* Header Bar */
.practice-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
    border-radius: 12px;
    color: white;
}

/* Navigation */
.practice-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.practice-nav button {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.practice-nav button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.practice-nav button:hover:not(:disabled) {
    background: rgba(255,255,255,0.3);
}

/* Progress Dots */
.progress-dots-container {
    margin: 0.75rem 0 1rem 0;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.progress-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: white;
    border: 2px solid #d1d5db;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: #6b7280;
}

.progress-dot:hover {
    transform: scale(1.1);
    border-color: #9ca3af;
}

.progress-dot.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.3);
}

.progress-dot.completed {
    border-color: var(--color-success);
    background: var(--color-success);
    color: white;
}

.progress-dot.skipped {
    border-color: var(--color-warning);
    background: var(--color-warning);
    color: white;
}

.practice-progress {
    font-size: 0.9rem;
    font-weight: 500;
}

.practice-timer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.practice-timer.paused {
    color: #fbbf24;
}

.practice-timer .paused-badge {
    font-size: 0.7rem;
    background: #fbbf24;
    color: #78350f;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-weight: 600;
}

.practice-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.practice-actions button {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s;
}

.practice-actions button:hover {
    background: rgba(255,255,255,0.3);
}

/* Question Card */
.question-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #e5e7eb;
}

.question-number {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary-hover);
}

.question-marks {
    background: var(--color-primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.question-topic {
    font-size: 0.8rem;
    color: #6b7280;
}

/* On-screen question prose — math-matched serif so inline MathJax blends
   into the sentence (same font the print paper uses). One rule for every
   question surface: topic browser, practice, teacher marking. */
.question-content,
.question-context,
.question-text,
.part-content,
.worked-solution {
    font-family: var(--font-question);
    font-size: 1.06rem;
    line-height: 1.5;
    color: var(--color-text, #1f2937);
}

.question-content { margin-bottom: 1rem; }

.question-content mjx-container,
.question-context mjx-container,
.question-text mjx-container {
    font-size: 1em;     /* match prose; no 5% upscale that wobbles the baseline */
}

.question-content p,
.question-context p,
.question-text p {
    margin: 0 0 0.7em;  /* even paragraph rhythm (markdown <p> defaults vary) */
}

/* Diagrams/images centred in the question layout */
.question-content img,
.question-context img,
.question-text img,
.part-content img {
    display: block;
    margin: 0.85rem auto;
    max-width: 100%;
    height: auto;
}

.question-parts {
    margin-top: 1rem;
}

.question-part {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 0;
    border-top: 1px solid #f3f4f6;
}

.part-content-wrapper {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
}

.part-label {
    font-weight: 600;
    color: var(--color-primary-hover);
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.part-marks {
    flex-shrink: 0;
    background: #f3f4f6;
    color: #4b5563;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

/* Phase Cards */
.phase-card {
    background: var(--color-bg-subtle);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1rem;
    text-align: center;
}

.phase-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

/* Confidence Rating */
.confidence-stars {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin: 1rem 0;
}

.confidence-star {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid #e5e7eb;
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.2s;
}

.confidence-star:hover {
    transform: scale(1.1);
    border-color: #fbbf24;
}

.confidence-star.active {
    background: #fbbf24;
    border-color: var(--color-warning);
    color: white;
}

.confidence-star.active-low {
    background: var(--color-danger);
    border-color: var(--color-danger-hover);
}

.confidence-star.active-mid {
    background: var(--color-warning);
    border-color: var(--color-warning-hover);
}

.confidence-star.active-high {
    background: var(--color-success);
    border-color: var(--color-success-hover);
}

.confidence-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.5rem;
}

/* Diligence Options */
.diligence-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin: 1rem 0;
}

.diligence-btn {
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    background: white;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.diligence-btn:hover {
    border-color: var(--color-primary);
    background: var(--jmaths-cream);
}

.diligence-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}

.diligence-btn i {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.diligence-btn span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Self Marking */
.self-mark-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1rem 0;
}

.mark-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background: white;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.mark-input {
    width: 60px;
    padding: 0.5rem;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    text-align: center;
    font-size: 1rem;
}

.mark-max {
    color: #6b7280;
    margin-left: 0.5rem;
}

.mark-full-btn {
    padding: 0.4rem 0.8rem;
    background: var(--color-success);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
}

/* Solution Display */
.solution-container {
    background: #fef3c7;
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
    border-left: 4px solid var(--color-warning);
}

.solution-header {
    font-weight: 600;
    color: #92400e;
    margin-bottom: 0.5rem;
}

.solution-content {
    color: #78350f;
}

/* Action Buttons */
.action-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn-primary-action {
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
}

.btn-secondary-action {
    padding: 0.75rem 1.5rem;
    background: white;
    color: var(--color-primary-hover);
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
}

/* Session Summary */
.summary-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-align: center;
}

.summary-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-hover);
    margin-bottom: 1.5rem;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.summary-stat {
    padding: 1rem;
    background: var(--jmaths-cream);
    border-radius: 10px;
}

.summary-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.summary-stat-label {
    font-size: 0.85rem;
    color: #6b7280;
}

.summary-table {
    width: 100%;
    margin: 1rem 0;
    border-collapse: collapse;
}

.summary-table th, .summary-table td {
    padding: 0.75rem;
    text-align: center;
    border-bottom: 1px solid #e5e7eb;
}

.summary-table th {
    background: #f3f4f6;
    font-weight: 600;
    font-size: 0.85rem;
}

/* Exit Modal */
.exit-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.exit-modal-overlay.show {
    display: flex;
}

.exit-modal {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.exit-modal-icon {
    width: 60px;
    height: 60px;
    background: #fef3c7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--color-warning);
}

.exit-modal h3 {
    margin-bottom: 0.5rem;
    color: #333;
}

.exit-modal p {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.exit-modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.exit-modal-buttons button {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    border: none;
}

.btn-cancel {
    background: #f3f4f6;
    color: #374151;
}

.btn-cancel:hover {
    background: #e5e7eb;
}

.btn-exit {
    background: var(--color-danger);
    color: white;
}

.btn-exit:hover {
    background: var(--color-danger-hover);
}

/* Mobile */
@media (max-width: 640px) {
    .practice-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .diligence-options {
        grid-template-columns: 1fr;
    }

    .summary-stats {
        grid-template-columns: 1fr;
    }

    .confidence-star {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .progress-dots-container {
        gap: 0.35rem;
    }
    .progress-dot {
        width: 24px;
        height: 24px;
        font-size: 0.65rem;
    }
}

/* ========================================================================
   SESSION PRERATE PAGE — Phase 3
   Pre-print confidence rating before printing a practice session
   ======================================================================== */

.prerate-question-card {
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    background: #fff;
    margin-bottom: 1.25rem;
    transition: box-shadow 0.15s;
}

.prerate-question-card.rated {
    border-color: var(--bs-green);
}

.prerate-question-card .card-header-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #f0f0f0;
    background: #f8f9fa;
    border-radius: 9px 9px 0 0;
}

.prerate-question-card .card-header-row .q-number {
    font-weight: 700;
    font-size: 1rem;
    color: #1f2937;
    min-width: 2rem;
}

.prerate-question-card .card-header-row .q-meta {
    font-size: 0.8rem;
    color: #6b7280;
}

.prerate-question-card .card-body-inner {
    padding: 1rem;
}

.prerate-question-card .parts-summary {
    font-size: 0.82rem;
    color: #6b7280;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.prerate-question-card .parts-summary .part-chip {
    background: var(--color-bg-muted);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    font-size: 0.78rem;
}

.prerate-confidence-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

.prerate-confidence-row .label {
    font-size: 0.8rem;
    color: #6b7280;
    min-width: 8rem;
}

.prerate-star-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #e5e7eb;
    background: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.15s;
    padding: 0;
}

.prerate-star-btn:hover {
    transform: scale(1.12);
    border-color: #fbbf24;
}

.prerate-star-btn.selected {
    background: #fbbf24;
    border-color: var(--color-warning-hover);
}

.prerate-star-btn.selected-low {
    background: var(--color-danger);
    border-color: var(--color-danger-hover);
}

.prerate-star-btn.selected-high {
    background: #22c55e;
    border-color: #16a34a;
}

/* Sticky footer bar */
.prerate-footer-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: #fff;
    border-top: 2px solid #e5e7eb;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
}

.prerate-footer-bar .progress-label {
    font-size: 0.85rem;
    color: #6b7280;
}

.prerate-footer-bar .rated-count {
    font-weight: 600;
    color: #1f2937;
}

/* Body padding so cards aren't hidden by the fixed footer */
.session-prerate-page {
    padding-bottom: 5rem;
}

/* ========================================================================
   OFFICIAL PAPERS INDEX
   Migrated from inline styles for DRY compliance
   ======================================================================== */

/* Filter Toolbar */
.official-papers-filter-toolbar {
    position: sticky;
    top: 70px;
    z-index: 100;
    background: #fff;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: 1px solid #e5e7eb;
}

.official-papers-filter-label {
    font-size: 0.75rem;
    color: #6b7280;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.official-papers-filter-btn {
    min-width: 45px;
}

.official-papers-filter-btn.active {
    font-weight: 600;
}

/* Papers Table */
.official-papers-table {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
}

.official-papers-table table {
    margin-bottom: 0;
}

.official-papers-table .table > thead,
.official-papers-table .table > thead th {
    background: #1f2937 !important;
    color: #fff !important;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
    border: none;
    text-transform: none;
    letter-spacing: normal;
}

.official-papers-table td {
    padding: 0.6rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--bs-gray-light);
}

.official-papers-table tbody tr:hover {
    background: #f8f9fa;
}

.official-papers-table .paper-name {
    font-weight: 500;
    color: #1f2937;
}

/* Year Group Header */
.official-papers-year-header {
    background: var(--color-bg-muted);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--jmaths-gray-600);
    padding: 0.5rem 1rem;
    border-bottom: 2px solid var(--jmaths-gray-300);
}

.official-papers-year-header td {
    padding: 0.5rem 1rem;
}

/* Level & Course Badges */
.official-papers-badge-hl { background: #dc3545; color: #fff; font-size: 0.7rem; }
.official-papers-badge-sl { background: #ffc107; color: #000; font-size: 0.7rem; }
.official-papers-badge-aa { background: var(--bs-blue); color: #fff; font-size: 0.7rem; }
.official-papers-badge-ai { background: var(--bs-green); color: #fff; font-size: 0.7rem; }

/* Action Button */
.official-papers-btn-action {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    border-radius: 4px;
}

/* Empty State */
.official-papers-empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--color-secondary);
}

.official-papers-empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* ─────────────────────────────────────────────────────────────────────
   Session detail / session mark — pill-style question + part layout
   so the on-screen card visually mirrors the printed practice paper.
   ───────────────────────────────────────────────────────────────────── */
.session-q-card {
    --paper-teal: var(--color-primary);
    --paper-teal-dark: var(--color-primary-hover);
    --paper-teal-soft: #ccfbf1;
    border-radius: 12px !important;
}
.session-q-card .question-context {
    font-size: 1.05rem;
    line-height: 1.6;
}
.session-q-card .q-num-pill {
    display: inline-block;
    background: var(--paper-teal);
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    padding: 2px 14px;
    border-radius: 999px;
    line-height: 1.4;
    vertical-align: middle;
    flex-shrink: 0;
}
.session-q-card .q-total-pill {
    display: inline-block;
    background: var(--paper-teal-soft);
    color: var(--paper-teal-dark);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 4px 12px;
    border-radius: 999px;
    white-space: nowrap;
    align-self: flex-start;
}
.session-q-card .part-label-pill {
    display: inline-block;
    background: var(--paper-teal-soft);
    color: var(--paper-teal-dark);
    border: 1.5px solid var(--paper-teal);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0 9px 1px;
    border-radius: 6px;
    line-height: 1.4;
    vertical-align: middle;
    flex-shrink: 0;
}
.session-q-card .part-marks-pill {
    display: inline-block;
    background: var(--paper-teal-soft);
    color: var(--paper-teal-dark);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 1px 10px;
    border-radius: 999px;
    white-space: nowrap;
    align-self: flex-start;
    margin-top: 2px;
}
.session-q-card .question-part-content {
    font-size: 1rem;
    line-height: 1.6;
}
.session-q-card .part-row {
    padding: 8px 12px;
    border-radius: 8px;
    transition: background-color 0.15s;
}
.session-q-card .part-row:hover {
    background: rgba(var(--color-primary-rgb), 0.04);
}

/* ====================================================================
   MOBILE — math overflow safety net
   ====================================================================
   Default mjx-container styling pins white-space:nowrap which keeps a
   single equation on one line. Fine on desktop; on mobile a wide
   equation (matrix, long polynomial, table) pushes its parent row
   off-screen and the user sees half a question with no scrollbar.

   On <640px viewports:
   - Each mjx-container becomes its own scrollable strip (touch-pan-x).
   - Parent containers (.question-content, .question-preview,
     .question-context, .math-content, .latex-content) get max-width
     + overflow-wrap so they can't widen past the viewport.
   - WebKit's overflow-scrolling=touch keeps inertial scroll feeling
     native. */
@media (max-width: 640px) {
    mjx-container, .katex, .MathJax {
        max-width: 100%;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }
    .question-content,
    .question-preview,
    .question-context,
    .math-content,
    .latex-content,
    .part-content,
    .part-header-line {
        max-width: 100%;
        overflow-wrap: break-word;
        word-wrap: break-word;
        word-break: break-word;
    }
    /* Tables in question content — scroll instead of overflow */
    .question-content table,
    .question-preview table,
    .math-content table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    /* Variant_check compare cards stack on mobile (Bootstrap col-lg-6
       already does this, but tighten the gutters). */
    .variant-check-page .row > [class*="col-"] {
        margin-bottom: 1rem;
    }
}

/* ─── Report-question button + modal (interactive practice) ─── */
.report-question-btn {
    background: transparent;
    border: 1px solid #e5e7eb;
    color: #6b7280;
    border-radius: 999px;
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.report-question-btn:hover {
    color: var(--color-danger, var(--color-danger-hover));
    border-color: var(--color-danger, var(--color-danger-hover));
    background: #fef2f2;
}

.report-modal {
    text-align: left;
    max-width: 460px;
}

.report-modal h3 {
    text-align: center;
}

.report-modal-sub {
    text-align: center;
    color: #6b7280;
    margin-bottom: 1.25rem;
}

.report-modal-icon {
    background: #fee2e2 !important;
    color: var(--color-danger, var(--color-danger-hover)) !important;
}

.report-field-label {
    display: block;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
}

.report-input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    color: #111827;
    background: white;
}

.report-input:focus {
    outline: none;
    border-color: var(--primary, var(--color-success));
    box-shadow: 0 0 0 3px rgba(var(--color-success-rgb), 0.15);
}

.report-error {
    color: var(--color-danger, var(--color-danger-hover));
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

.report-success {
    color: #047857;
    background: #ecfdf5;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    text-align: center;
    font-weight: 500;
}

/* --- ./components/auth.css --- */
/* Authentication Pages Styling */

/* Split Screen Login Layout */
.login-page-split {
    min-height: calc(100vh - 60px);
    margin-top: -60px;
    padding-top: 60px;
    display: flex;
    align-items: stretch;
    background: linear-gradient(135deg, var(--jmaths-dark-blue) 0%, var(--jmaths-medium-blue) 100%);
}

.login-split-container {
    display: flex;
    width: 100%;
    min-height: calc(100vh - 60px);
}

/* Left: Branding Side */
.login-brand-side {
    flex: 1;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.login-brand-side::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.02) 100%);
    pointer-events: none;
}

.login-brand-side::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 60%;
    height: 60%;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    filter: blur(40px);
    pointer-events: none;
}

.brand-content {
    position: relative;
    z-index: 1;
    max-width: 500px;
    text-align: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.brand-logo i {
    font-size: 2.5rem;
    color: white;
}

.brand-logo h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin: 0;
    color: white;
}

.brand-logo jmaths-logo {
    width: 100%;
    max-width: 340px;
}

.brand-tagline {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.3px;
}

.brand-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: var(--transition-slow);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.feature-item i {
    font-size: 1.5rem;
    opacity: 0.9;
}

/* Right: Form Side */
.login-form-side {
    flex: 1;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.form-content {
    width: 100%;
    max-width: 450px;
    background: white;
    padding: 3rem 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--jmaths-dark-blue);
    margin-bottom: 0.5rem;
}

.form-header p {
    font-size: 1rem;
    margin: 0;
}

.form-footer {
    text-align: center;
    margin-top: 1rem;
}

.form-footer a {
    color: var(--jmaths-medium-blue);
    font-size: 0.95rem;
    transition: var(--transition-colors);
}

.form-footer a:hover {
    color: var(--jmaths-dark-blue);
}

/* Form Styling */
.login-page-split .form-control {
    border: 2px solid var(--bs-gray-light);
    border-radius: 10px;
    padding: 0.75rem;
    transition: var(--transition-base);
}

.login-page-split .form-control:focus {
    border-color: var(--jmaths-medium-blue);
    box-shadow: 0 0 0 0.2rem rgba(69, 123, 157, 0.1);
}

.login-page-split .form-floating > label {
    color: var(--color-secondary);
    padding: 1rem 0.75rem;
}

.btn-login {
    padding: 0.875rem;
    font-weight: 600;
    border-radius: 10px;
    font-size: 1.05rem;
    transition: var(--transition-slow);
    background: var(--jmaths-medium-blue);
    border: none;
}

.btn-login:hover {
    background: var(--jmaths-dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(69, 123, 157, 0.3);
}

/* Login Page Container Overrides */
.login-page-split .page-wrapper {
    padding-bottom: 0 !important;
}
.login-page-split .page-wrapper .container-fluid {
    padding: 0 !important;
}

/* Divider with Text (flexbox variant) */
.divider-with-text {
    display: flex;
    align-items: center;
}
.divider-with-text::before,
.divider-with-text::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #ddd;
}
.divider-with-text span {
    padding: 0 1rem;
    color: #666;
    font-size: 0.875rem;
}

/* Auth Loading State */
.auth-loading .btn-google {
    pointer-events: none;
    opacity: 0.7;
}

/* Signup Card */
.signup-card {
    max-width: 600px;
    margin: 0 auto;
}

/* Auth Container (Firebase login) */
.auth-container {
    max-width: 400px;
    margin: 0 auto;
}

/* Social Login Buttons */
.social-btn {
    width: 100%;
    padding: 12px 20px;
    font-size: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.2s ease;
}

.social-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Auth Error */
.auth-error {
    display: none;
}

/* Onboarding Wizard */
.wizard-progress .progress {
    height: 8px;
}

.step-number {
    width: 36px;
    height: 36px;
    background: var(--bs-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.onboarding-card {
    border-radius: 15px;
}

.onboarding-card h4 {
    color: #2c3e50;
    border-bottom: 2px solid var(--bs-gray-light);
    padding-bottom: 0.5rem;
}

.onboarding-card h5 {
    font-weight: 600;
    color: #2c3e50;
}

.onboarding-card h6 {
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.onboarding-card label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
}

.onboarding-card .form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    cursor: pointer;
}

.onboarding-card .form-check-label {
    margin-left: 0.5rem;
    cursor: pointer;
}

/* Course Selection Cards */
.course-card {
    transition: all 0.2s ease;
    cursor: pointer;
}

.course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

.course-card .form-check-input:checked ~ .form-check-label {
    color: var(--bs-primary);
}

.course-card .form-check-input {
    width: 1.5rem;
    height: 1.5rem;
    margin-top: 0.25rem;
}

/* Countdown Timer */
.countdown {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--jmaths-medium-blue);
}

/* Responsive Design */
@media (max-width: 992px) {
    .login-page-split {
        margin-top: -60px;
        padding-top: 60px;
    }

    .login-split-container {
        flex-direction: column;
    }

    .login-brand-side {
        min-height: 40vh;
        padding: 2rem;
    }

    .brand-logo i,
    .brand-logo h1 {
        font-size: 2rem;
    }

    .brand-tagline {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .brand-features {
        margin-top: 2rem;
        gap: 1rem;
    }

    .feature-item {
        font-size: 1rem;
        padding: 0.75rem;
    }

    .login-form-side {
        padding: 2rem 1.5rem;
    }

    .form-content {
        padding: 2.5rem 2rem;
    }

    .form-header h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 576px) {
    .login-page-split {
        margin-top: -60px;
        padding-top: 60px;
    }

    .login-brand-side {
        padding: 1.5rem;
    }

    .brand-logo {
        flex-direction: column;
        gap: 0.5rem;
    }

    .brand-features {
        display: none;
    }

    .login-form-side {
        padding: 1.5rem 1rem;
    }

    .form-content {
        padding: 2rem 1.5rem;
        border-radius: 12px;
    }
}

.btn-google {
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    padding: 0.75rem;
    font-weight: 500;
    transition: var(--transition-slow);
    background: white;
}

.btn-google:hover {
    border-color: var(--primary);
    background: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background: #e0e0e0;
}

.divider span {
    position: relative;
    background: white;
    padding: 0 1rem;
    color: var(--color-secondary);
    font-size: 0.875rem;
}

.login-page .form-floating label {
    color: var(--color-secondary);
}

/* Login Modal Styling */
#loginModal .modal-header {
    background: var(--primary);
    color: white;
    border: none;
}

#loginModal .modal-header .btn-close {
    filter: brightness(0) invert(1);
}

#loginModal .modal-body {
    padding: 2rem;
}

#loginModal .form-floating label {
    color: var(--color-secondary);
}

/* ========================================================================
   HOME PAGE HERO BANNER + CARD DESIGN
   ======================================================================== */

.home-page-hero {
    min-height: calc(100vh - 60px);
}

/* Hero Banner */
.hero-banner {
    background: linear-gradient(135deg, var(--jmaths-dark-blue) 0%, var(--jmaths-medium-blue) 100%);
    padding: 6rem 2rem 4rem;
    margin-top: -60px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.hero-logo i {
    font-size: 3rem;
    color: white;
}

.hero-logo h1 {
    font-size: 3rem;
    font-weight: 600;
    margin: 0;
    color: white;
}

.hero-tagline {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    font-weight: 400;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 2rem;
    font-weight: 300;
}

.btn-hero {
    background: white;
    color: var(--jmaths-dark-blue);
    padding: 0.875rem 2rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: var(--transition-slow);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    color: var(--jmaths-dark-blue);
}

/* Cards Section */
.home-cards-section {
    background: #f8f9fa;
    padding: 3rem 0;
    min-height: 50vh;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--jmaths-dark-blue);
    margin-bottom: 2.5rem;
}

.home-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.home-feature-card {
    background: white;
    border-radius: 12px;
    padding: 2.5rem 2rem;
    text-align: center;
    text-decoration: none;
    color: var(--jmaths-dark-blue);
    transition: var(--transition-slow);
    border: 2px solid transparent;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
}

.home-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(69, 123, 157, 0.2);
    border-color: var(--jmaths-medium-blue);
    color: var(--jmaths-dark-blue);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--jmaths-light-blue) 0%, var(--jmaths-medium-blue) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-slow);
}

.home-feature-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-icon i {
    font-size: 2rem;
    color: white;
}

.home-feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--jmaths-dark-blue);
}

.home-feature-card p {
    font-size: 0.95rem;
    color: var(--color-secondary);
    margin: 0;
    line-height: 1.5;
}

/* Locked/Coming Soon Cards */
.card-locked {
    opacity: 0.7;
    cursor: default;
    position: relative;
}

.card-locked:hover {
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

.card-locked .card-icon {
    background: linear-gradient(135deg, var(--jmaths-gray-300) 0%, var(--color-text-light) 100%);
}

.card-locked:hover .card-icon {
    transform: none;
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--jmaths-medium-blue);
    color: white;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-banner {
        padding: 5rem 1.5rem 3rem;
        margin-top: -60px;
    }

    .hero-logo i,
    .hero-logo h1 {
        font-size: 2.5rem;
    }

    .hero-tagline {
        font-size: 1.3rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .home-cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 576px) {
    .hero-banner {
        padding: 4.5rem 1rem 2.5rem;
        margin-top: -60px;
    }

    .hero-logo {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-logo i,
    .hero-logo h1 {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1.1rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .home-cards-section {
        padding: 2rem 0;
    }

    .home-cards-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .home-feature-card {
        padding: 2rem 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}

.account-hint {
    font-size: 0.95rem;
}
.account-hint__email {
    font-weight: 600;
    word-break: break-all;
}
.account-hint__sub {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-top: 0.25rem;
}

/* --- ./components/floating-filter-bar.css --- */
/* Floating Filter Bar - Reusable Component */

.floating-filter-bar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    padding: 0.75rem 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 80px;
    z-index: 500;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-bar-filters {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
    flex: 1;
}

.filter-bar-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Filter Pills/Buttons */
.filter-pill {
    padding: 0.4rem 0.9rem;
    border: none;
    border-radius: 20px;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    font-weight: 500;
    color: #495057;
    white-space: nowrap;
}

.filter-pill:hover {
    background: rgba(0, 0, 0, 0.05);
}

.filter-pill.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}

/* Filter Selects */
.filter-select {
    padding: 0.4rem 0.9rem;
    border: 1px solid #dee2e6;
    border-radius: 20px;
    background: white;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 120px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
    padding-right: 2rem;
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

/* Search Input */
.filter-search {
    padding: 0.4rem 1rem;
    border: 1px solid #dee2e6;
    border-radius: 20px;
    background: white;
    font-size: 0.85rem;
    min-width: 180px;
    transition: all 0.2s ease;
}

.filter-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

/* Action Buttons */
.filter-action-btn {
    padding: 0.4rem 0.9rem;
    border: 1px solid #dee2e6;
    border-radius: 20px;
    background: white;
    color: #495057;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-action-btn:hover {
    background: #f8f9fa;
    border-color: #adb5bd;
}

.filter-action-btn.primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
    border-color: transparent;
    color: white;
}

.filter-action-btn.primary:hover {
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}

/* Results Count Badge */
.filter-results-badge {
    background: var(--bs-gray-light);
    color: #495057;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Responsive */
@media (max-width: 992px) {
    .floating-filter-bar {
        top: 60px;
        padding: 0.5rem 1rem;
        border-radius: 30px;
    }

    .filter-bar-filters {
        order: 2;
        width: 100%;
        justify-content: flex-start;
    }

    .filter-bar-actions {
        order: 1;
    }
}

@media (max-width: 768px) {
    .floating-filter-bar {
        border-radius: 20px;
        flex-direction: column;
        gap: 0.75rem;
    }

    .filter-bar-filters {
        width: 100%;
        justify-content: center;
    }

    .filter-search {
        width: 100%;
        min-width: unset;
    }

    .filter-bar-actions {
        width: 100%;
        justify-content: center;
    }
}

/* Inline pill row inside the floating bar (unit-page topic navigator).
   Horizontal scroll on narrow viewports so the pill train never wraps
   awkwardly under the syllabus selector. */
.floating-filter-bar .filter-bar-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
    flex: 1;
    min-width: 0;
}
.floating-filter-bar .filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 3px 10px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 500;
    color: #374151;
    text-decoration: none;
    transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
    white-space: nowrap;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}
.floating-filter-bar .filter-pill:hover {
    background: #ccfbf1;
    border-color: var(--color-primary);
    color: var(--color-primary-hover);
    text-decoration: none;
}
.floating-filter-bar .filter-pill.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}
.floating-filter-bar .filter-pill-num {
    font-weight: 700;
    font-size: 0.82rem;
}
.floating-filter-bar .filter-pill-name {
    overflow: hidden;
    text-overflow: ellipsis;
}
.floating-filter-bar .filter-pill.locked {
    opacity: 0.5;
    cursor: not-allowed;
}
.floating-filter-bar .filter-pill-overview {
    background: white;
    border-color: var(--jmaths-gray-300);
    color: #6b7280;
    font-weight: 600;
}

/* View toggle (Course / By topic) — pill segmented control inside the
   floating bar. Active option fills teal; inactive stays muted. */
.floating-filter-bar .view-toggle {
    display: inline-flex;
    background: #f3f4f6;
    border-radius: 999px;
    padding: 2px;
    gap: 2px;
}
.floating-filter-bar .view-toggle-btn {
    padding: 4px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #6b7280;
    text-decoration: none;
    border-radius: 999px;
    transition: background 0.12s ease, color 0.12s ease;
    white-space: nowrap;
}
.floating-filter-bar .view-toggle-btn:hover {
    color: var(--color-primary-hover);
    text-decoration: none;
}
.floating-filter-bar .view-toggle-btn.active {
    background: white;
    color: var(--color-primary-hover);
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

/* --- ./components/topic-browser.css --- */
/* ========================================================================
   TOPIC BROWSER - Main Navigation & Layout

   NOTE: Component styles have been split out for maintainability:
   - syllabus-card.css: Syllabus selection cards
   - concept-card.css: Question browser cards, question items
   - power-meter.css: Progress rings, meters, star ratings
   - practice-cart.css: Floating practice cart
   ======================================================================== */

/* ========================================================================
   TOPIC ACCORDION
   ======================================================================== */

.topic-accordion {
    border-radius: 12px;
    overflow: hidden;
}

.topic-accordion .accordion-item {
    border: 1px solid var(--tb-border) !important;
    margin-bottom: 0.55rem !important;
    border-radius: 10px !important;
    overflow: hidden;
    box-shadow: none !important;
    background: var(--tb-card);
}

.topic-accordion .accordion-button {
    padding: 0.7rem 1rem !important;
    background: var(--tb-card) !important;
    font-weight: 500;
    border-radius: 10px !important;
    color: var(--tb-text) !important;
}

.topic-accordion .accordion-button:not(.collapsed) {
    background: white;
    box-shadow: none;
}

.topic-accordion .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.topic-header-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    padding-right: 1rem;
}

.topic-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px !important;
    height: 36px !important;
    border-radius: 8px !important;
    color: var(--tb-accent) !important;
    font-size: 1.25rem;
    flex-shrink: 0;
    background: var(--tb-accent-soft) !important;
    box-shadow: none !important;
}

.topic-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.topic-number {
    font-size: 0.72rem !important;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--tb-text-subtle) !important;
    font-weight: 600;
}

.topic-name {
    font-size: 0.96rem !important;
    font-weight: 600 !important;
    color: var(--tb-text) !important;
}

.topic-count {
    background: var(--tb-bg) !important;
    color: var(--tb-text-muted) !important;
    font-size: 0.78rem !important;
    padding: 0.18rem 0.55rem !important;
    border-radius: 12px !important;
    border: 1px solid var(--tb-border);
    font-variant-numeric: tabular-nums;
}

/* ========================================================================
   SUBTOPIC GRID
   ======================================================================== */

.subtopic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}

.subtopic-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.75rem !important;
    background: var(--tb-bg) !important;
    border-radius: 8px !important;
    text-decoration: none;
    color: var(--color-text);
    transition: all 0.2s ease;
    border: 1px solid var(--tb-border-soft) !important;
}

.subtopic-item:hover {
    background: var(--tb-accent-soft) !important;
    border-color: var(--jmaths-light-blue) !important;
    color: var(--topic-color, var(--color-primary));
    text-decoration: none;
    transform: translateX(4px);
}

.subtopic-code {
    font-weight: 600;
    font-size: 0.76rem !important;
    color: var(--tb-text-muted) !important;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace !important;
}

.subtopic-count {
    font-size: 0.8rem;
    color: var(--tb-text-subtle) !important;
    margin-left: auto;
    font-variant-numeric: tabular-nums;
}

.subtopic-arrow {
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.subtopic-item:hover .subtopic-arrow {
    opacity: 1;
}

/* ========================================================================
   MATH CONTENT - Prevent inline math from breaking across lines
   ======================================================================== */

.latex-content,
.math-inline,
mjx-container,
.katex,
.MathJax {
    white-space: nowrap;
    display: inline-block;
}

.katex-display,
.MathJax_Display {
    white-space: normal;
    display: block;
}

@media print {
    .latex-content,
    .math-inline,
    mjx-container,
    .katex {
        white-space: nowrap;
        display: inline-block;
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* ========================================================================
   UNIFIED COMPACT HEADER
   ======================================================================== */

.unified-header {
    background: var(--tb-card) !important;
    border-radius: 10px !important;
    padding: 0.85rem 1.1rem !important;
    margin-bottom: 1rem;
    color: var(--tb-text) !important;
    border: 1px solid var(--tb-border) !important;
    box-shadow: none !important;
}

.header-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.header-welcome {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-welcome h5 {
    margin: 0;
    font-size: 1rem;
    font-weight: 500;
}

.header-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-stat {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.82rem !important;
    opacity: 1 !important;
    background: var(--tb-bg);
    border: 1px solid var(--tb-border);
    border-radius: 8px;
    padding: 0.4rem 0.7rem !important;
    color: var(--tb-text-muted) !important;
}

.header-stat .value {
    font-weight: 600;
    color: var(--tb-text);
    font-variant-numeric: tabular-nums;
}

.header-stat.streak {
    color: #b45309 !important;
    background: #fffbeb;
    border-color: #fde68a;
}
.header-stat.due {
    color: #b91c1c !important;
    background: #fef2f2;
    border-color: #fecaca;
}

.header-stat.clickable {
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    transition: background 0.15s;
}

.header-stat.clickable:hover {
    background: var(--tb-accent-soft) !important;
    border-color: var(--jmaths-light-blue) !important;
    color: var(--tb-text) !important;
}

/* ========================================================================
   SEARCH & FILTERS
   ======================================================================== */

.search-container {
    flex: 1;
    max-width: 320px;
    min-width: 180px;
    position: relative;
}

.search-container input {
    width: 100%;
    padding: 0.6rem 0.85rem 0.6rem 2.5rem;
    border: none;
    border-radius: 8px;
    background: rgba(255,255,255,0.95);
    font-size: 0.95rem;
}

.search-container input:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(255,255,255,0.5);
}

.search-container .search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--jmaths-gray-500);
}

.course-selector {
    background: white;
    border: none;
    border-radius: 6px;
    padding: 0.35rem 0.6rem;
    color: var(--color-primary-hover);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.course-selector:hover {
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
}

.course-selector:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(255,255,255,0.5);
}

.course-selector option {
    color: var(--color-text);
    background: white;
}

.course-selector-floating {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: var(--tb-card) !important;
    border: 1px solid var(--tb-border) !important;
    border-radius: 8px !important;
    padding: 0.32rem 0.6rem !important;
    color: var(--tb-text) !important;
    font-size: 0.86rem !important;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    text-align-last: center;
    min-width: 70px;
}

.course-selector-floating:hover {
    transform: scale(1.02);
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}

.course-selector-floating:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.3);
}

.course-selector-floating option {
    color: var(--color-text);
    background: white;
    text-align: left;
}

.filter-divider {
    width: 1px;
    height: 20px;
    background: rgba(0,0,0,0.15);
    margin: 0 0.25rem;
}

/* ========================================================================
   SEARCH RESULTS
   ======================================================================== */

.search-results-section {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--gradient-primary);
    color: white;
}

.search-results-header h5 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.search-results-content {
    padding: 0;
}

.search-results-content .search-result-item {
    padding: 1rem 1.25rem;
    cursor: pointer;
    border-bottom: 1px solid var(--jmaths-gray-100);
    transition: background 0.15s;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.search-results-content .search-result-item:hover {
    background: var(--jmaths-gray-50);
}

.search-results-content .search-result-item:last-child {
    border-bottom: none;
}

.search-results-content .result-main {
    flex: 1;
    min-width: 0;
}

.search-results-content .result-title {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.search-results-content .result-id {
    color: var(--jmaths-gray-500);
    font-weight: normal;
    font-size: 0.8rem;
    background: var(--jmaths-gray-100);
    padding: 2px 6px;
    border-radius: 4px;
}

.search-results-content .result-syllabus {
    font-weight: normal;
    font-size: 0.75rem;
    background: var(--color-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
}

.search-results-content .result-code {
    font-size: 0.8rem;
    color: var(--color-primary);
    margin-top: 4px;
    font-weight: 500;
}

.search-results-content .result-preview {
    font-size: 0.85rem;
    color: var(--jmaths-gray-600);
    margin-top: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-results-content .result-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    flex-shrink: 0;
}

.search-results-content .result-marks {
    font-size: 0.85rem;
    color: var(--color-success);
    font-weight: 600;
}

.search-results-content .result-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 6px;
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}

.search-results-content .result-btn:hover {
    background: var(--color-primary-hover);
}

.search-results-content .no-results,
.search-results-content .searching {
    padding: 2rem;
    text-align: center;
    color: var(--jmaths-gray-500);
}

.search-results-content .results-count {
    padding: 0.75rem 1.25rem;
    background: var(--jmaths-gray-50);
    font-size: 0.85rem;
    color: var(--jmaths-gray-500);
    border-bottom: 1px solid var(--jmaths-gray-100);
}

/* ========================================================================
   ACTION BUTTONS (Header)
   ======================================================================== */

.header-action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.action-buttons {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.action-buttons select {
    padding: 0.4rem 0.5rem;
    border: none;
    border-radius: 6px;
    background: rgba(255,255,255,0.9);
    font-size: 0.8rem;
    cursor: pointer;
    height: 32px;
}

.action-buttons .btn {
    border-radius: 8px;
    font-weight: 500;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    box-sizing: border-box;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-practice-primary {
    background: white;
    color: var(--color-primary-hover);
    border: none;
    font-weight: 600;
    padding: 0 1.5rem;
    height: 44px;
    font-size: 1rem;
    min-width: 140px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.btn-practice-primary:hover {
    background: var(--jmaths-cream);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-practice-primary i {
    font-size: 1.1rem;
}

.btn-pick {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 0 1.25rem;
    height: 44px;
    font-size: 0.95rem;
}

.btn-pick:hover {
    background: rgba(255,255,255,0.25);
}

.btn-pick.active {
    background: #fbbf24;
    color: #78350f;
    border-color: #fbbf24;
}

.btn-pick i {
    font-size: 1rem;
}

.btn-more {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 1rem;
}

.btn-more:hover {
    background: rgba(255,255,255,0.25);
}

/* ========================================================================
   MORE MENU
   ======================================================================== */

.more-menu-container {
    position: relative;
}

.more-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    min-width: 180px;
    z-index: var(--z-index-dropdown);
    overflow: hidden;
}

.more-menu.show {
    display: block;
    animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.more-menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    color: var(--jmaths-gray-700);
    font-size: 0.875rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
}

.more-menu-item:hover {
    background: var(--jmaths-gray-100);
}

.more-menu-item i {
    width: 16px;
    text-align: center;
    color: var(--jmaths-gray-500);
}

.more-menu-item.review-due {
    color: var(--color-danger-hover);
    border-top: 1px solid var(--jmaths-gray-200);
}

.more-menu-item.review-due i {
    color: var(--color-danger-hover);
}

.menu-item-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.menu-item-helper {
    font-size: 0.7rem;
    color: var(--jmaths-gray-400);
    margin-top: 2px;
}

.more-menu-item.review-due .menu-item-helper {
    color: #f87171;
}

/* ========================================================================
   HEATMAP MODAL
   ======================================================================== */

.heatmap-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: var(--z-index-modal);
    align-items: center;
    justify-content: center;
}

.heatmap-modal.show {
    display: flex;
}

.heatmap-container {
    background: var(--tb-card) !important;
    border-radius: 12px !important;
    padding: 1.5rem 2rem;
    max-width: 800px;
    width: 95%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.08) !important;
    border: 1px solid var(--tb-border) !important;
}

.heatmap-view-options {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.heatmap-view-btn {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--jmaths-gray-200);
    background: white;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.15s;
}

.heatmap-view-btn:hover {
    background: var(--jmaths-gray-100);
}

.heatmap-view-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.heatmap-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--tb-border-soft) !important;
    background: var(--tb-bg) !important;
    color: var(--tb-text) !important;
}

.heatmap-header h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.heatmap-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--jmaths-gray-500);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.heatmap-close:hover {
    color: var(--jmaths-gray-700);
}

.heatmap-legend {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
    font-size: 0.75rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 3px;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
}

.heatmap-topic {
    margin-bottom: 0.75rem;
}

.heatmap-topic-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--jmaths-gray-500);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.heatmap-cells {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

.heatmap-cell {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 600;
}

.heatmap-cell:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.heatmap-cell.level-0 { background: var(--color-bg-muted); color: var(--color-text-light); }
.heatmap-cell.level-1 { background: #fecaca; color: #991b1b; }
.heatmap-cell.level-2 { background: #fed7aa; color: #9a3412; }
.heatmap-cell.level-3 { background: #fef08a; color: #854d0e; }
.heatmap-cell.level-4 { background: #bbf7d0; color: #166534; }
.heatmap-cell.level-5 { background: var(--jmaths-light-blue); color: var(--color-primary-hover); }

.heatmap-loading {
    text-align: center;
    padding: 2rem;
    color: var(--jmaths-gray-500);
}

/* ========================================================================
   TOPIC SECTION
   ======================================================================== */

.topic-section {
    margin-bottom: 2rem;
    scroll-margin-top: 140px;
}

.topic-section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--jmaths-gray-200);
}

.topic-title {
    flex: 1;
}

.topic-title h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.topic-title small {
    color: var(--color-text-muted);
}

/* ========================================================================
   QUESTION PREVIEW MODAL
   ======================================================================== */

.question-preview-modal .modal-body {
    max-height: 70vh;
    overflow-y: auto;
}

/* ========================================================================
   IB EXAM PAPER STYLING
   ======================================================================== */

.ib-exam-paper {
    font-family: var(--font-question);
    font-size: 12pt;
    line-height: 1.6;
    color: #000;
    background: #fff;
    padding: 1.5rem;
}

.ib-exam-paper .question-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--jmaths-gray-300);
}

.ib-exam-paper .question-number {
    font-weight: 700;
    font-size: 14pt;
}

.ib-exam-paper .question-marks {
    font-weight: 600;
    color: var(--jmaths-gray-600);
}

.ib-exam-paper .question-context {
    margin-bottom: 1.25rem;
    text-align: justify;
}

.ib-exam-paper .question-stem {
    margin-bottom: 1.5rem;
}

.ib-exam-paper .part-row {
    display: flex;
    margin: 0.75rem 0;
    page-break-inside: avoid;
}

.ib-exam-paper .part-label {
    min-width: 1.6rem;   /* hug the label ("a)") — was a fixed 50px column */
    margin-right: 0;     /* spacing comes from the row gap only, not gap + margin */
    font-weight: 600;
    flex-shrink: 0;
}

.ib-exam-paper .part-content {
    flex: 1;
    padding-right: 3rem;
}

.ib-exam-paper .part-marks {
    min-width: 40px;
    text-align: center;   /* centre "[4]" within the pill */
    color: var(--jmaths-gray-600);
    font-weight: 500;
}

.ib-exam-paper .sub-part {
    margin-left: 2rem;
}

.ib-exam-paper .answer-space {
    min-height: 60px;
    border-bottom: 1px dotted #ccc;
    margin: 1rem 0;
}

/* Question modal action bar — keep button labels on one line; let the whole
   bar wrap as units (the rate group drops to its own right-aligned row)
   instead of squeezing each label onto two/three lines. */
.qb-actionbar .btn,
.qb-actionbar .small {
    white-space: nowrap;
}
.qb-actionbar > .d-flex {
    flex-wrap: wrap;
    row-gap: 0.5rem;
}

/* Give the question-modal footer action row more visual weight. */
.question-modal-actions {
    border-top: 2px solid var(--bs-border-color);
    padding-top: 0.75rem;
}
.question-modal-actions .btn {
    font-weight: 600;
}
.question-modal-actions .btn-outline-primary,
.question-modal-actions .btn-outline-success,
.question-modal-actions .btn-outline-info {
    border-width: 2px;
}
.question-modal-actions .reveal-cta {
    font-weight: 700;
}

/* ========================================================================
   PDF EXPORT
   ======================================================================== */

.pdf-export-options {
    background: var(--jmaths-gray-50);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.pdf-export-options label {
    font-size: 0.85rem;
    cursor: pointer;
}

.btn-download-pdf {
    background: var(--color-danger);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.btn-download-pdf:hover {
    background: var(--color-danger-hover);
    color: white;
    transform: translateY(-1px);
}

.btn-download-pdf:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ========================================================================
   VARIANTS LIST
   ======================================================================== */

.variants-list {
    margin-top: 0.5rem;
    padding-left: 1rem;
    border-left: 2px solid #e0e7ff;
}

.variant-item {
    padding: 0.35rem 0.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s ease;
}

.variant-item:hover {
    background: #f0f4ff;
    color: #4338ca;
}

/* ========================================================================
   CONFIDENCE STARS
   ======================================================================== */

.confidence-stars {
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.question-meta .badge {
    font-size: 0.65rem;
    font-weight: 500;
    padding: 0.2rem 0.4rem;
}

/* ========================================================================
   WELCOME & BANNERS
   ======================================================================== */

.welcome-placeholder {
    background: var(--tb-card) !important;
    border: 1px dashed var(--tb-border) !important;
    border-radius: 10px !important;
    padding: 2rem 1.25rem !important;
    text-align: center;
    margin-bottom: 1rem;
    box-shadow: none !important;
    color: var(--tb-text-muted) !important;
}

.welcome-placeholder h4 {
    color: var(--color-primary-hover);
    margin-bottom: 0.5rem;
}

.welcome-placeholder p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.welcome-placeholder .btn {
    background: var(--color-primary);
    color: white;
    border: none;
}

.review-alert {
    background: rgba(254, 243, 199, 0.95);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    color: #92400e;
    font-size: 0.85rem;
}

.review-alert .btn {
    background: var(--color-warning);
    color: white;
    border: none;
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

.anon-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
}

.anon-header .header-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.signup-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.signup-banner-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.signup-banner-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.signup-banner-icon i {
    font-size: 1.5rem;
    color: white;
}

.signup-banner-text {
    flex: 1;
    color: white;
}

.signup-banner-text h5 {
    font-weight: 600;
    color: white;
}

.signup-banner-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.signup-banner-actions .btn-light {
    background: white;
    color: var(--color-primary);
    font-weight: 600;
    border: none;
}

.signup-banner-actions .btn-light:hover {
    background: #f0f0f0;
}

.signup-banner-actions .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

.signup-banner-actions .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* ========================================================================
   MOBILE RESPONSIVE - Topic Accordion & Header
   ======================================================================== */

@media (max-width: 992px) {
    .topic-browser-container .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .subtopic-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.5rem;
    }
}

@media (max-width: 768px) {
    .topic-browser-container {
        padding-bottom: 80px;
    }

    .topic-browser-container .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .breadcrumb {
        font-size: 0.85rem;
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }

    /* Topic accordion - touch friendly */
    .topic-accordion .accordion-item {
        margin-bottom: 0.5rem;
        border-radius: 8px !important;
    }

    .topic-accordion .accordion-button {
        padding: 0.75rem 1rem;
        min-height: 64px;
    }

    .topic-header-content {
        flex-wrap: nowrap;
        gap: 0.75rem;
    }

    .topic-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        border-radius: 8px;
    }

    .topic-number {
        font-size: 0.65rem;
    }

    .topic-name {
        font-size: 0.95rem;
    }

    .topic-count {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
        white-space: nowrap;
    }

    /* Subtopic grid - single column on mobile */
    .subtopic-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .subtopic-item {
        padding: 0.875rem 1rem;
        min-height: 48px;
        border-radius: 6px;
    }

    .subtopic-code {
        font-size: 0.9rem;
    }

    .subtopic-count {
        font-size: 0.75rem;
    }

    .subtopic-arrow {
        opacity: 1;
    }

    /* Header responsive */
    .header-top-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-stats {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .header-action-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-container {
        max-width: 100%;
    }

    .action-buttons {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .btn-practice-primary {
        height: 40px;
        padding: 0 1rem;
        font-size: 0.9rem;
        min-width: 120px;
    }

    .btn-pick {
        height: 40px;
        padding: 0 1rem;
        font-size: 0.85rem;
    }

    .btn-more {
        width: 40px;
        height: 40px;
    }

    .signup-banner-content {
        flex-direction: column;
        text-align: center;
    }

    .signup-banner-actions {
        width: 100%;
        flex-direction: column;
    }

    .signup-banner-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .topic-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .topic-name {
        font-size: 0.85rem;
    }

    .btn-practice-primary {
        height: 38px;
        padding: 0 0.75rem;
        min-width: auto;
    }

    .btn-practice-primary .btn-text {
        display: none;
    }

    .btn-pick {
        height: 38px;
        padding: 0 0.75rem;
    }

    .btn-pick .btn-text {
        display: none;
    }

    .btn-more {
        width: 38px;
        height: 38px;
    }
}

/* Landscape mobile - use 2 columns */
@media (max-width: 768px) and (orientation: landscape) {
    .subtopic-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .subtopic-item:hover {
        transform: none;
    }

    .subtopic-item:active {
        background: white;
        border-color: var(--topic-color, var(--color-primary));
    }
}

@media print {
    .ib-exam-paper {
        padding: 0;
        font-size: 11pt;
    }
    .no-print {
        display: none !important;
    }
}

/* Presentation mode — used when projecting to a class screen. zoom scales
   the entire subtree including rem-based children, which a font-size bump
   alone can't do. */
body.presentation-mode .topic-browser-container {
    zoom: 1.35;
}

.header-stat.presentation-toggle {
    cursor: pointer;
}
body.presentation-mode .header-stat.presentation-toggle {
    background: var(--accent, var(--color-primary));
    color: #fff;
}
body.presentation-mode .header-stat.presentation-toggle .value,
body.presentation-mode .header-stat.presentation-toggle i {
    color: #fff;
}

/* ========================================================================
   Styles migrated from topic-browser-refresh.css (v1/v2 split removed)
   ======================================================================== */
/* ========================================================================
   TOPIC BROWSER — visual refresh overlay (2026-05-16)

   Loaded AFTER static/css/components/topic-browser.css so it can override
   the existing visuals to match the calmer design of /exams/mastery/.

   Principles (same as my_mastery.html):
   - Soft 1px neutral borders instead of heavy shadows
   - Generous whitespace, rounded but not pillowy (10px radius)
   - Calm pastel palette for status colours
   - White cards on a near-white page
   - Muted-uppercase section headers
   - Tabular-nums for counts

   Does not touch JS behaviour, accordions, or layout structure — pure
   visual layer. Revert by removing this <link> from the template.
   ======================================================================== */

:root {
    --tb-bg: #fafbfc;
    --tb-card: #ffffff;
    --tb-border: #e8ecef;
    --tb-border-soft: #eef1f4;
    --tb-text: #2c3338;
    --tb-text-muted: #6a7280;
    --tb-text-subtle: #9aa1a9;
    --tb-accent: var(--color-primary);
    --tb-accent-soft: var(--jmaths-cream);
}

.topic-browser-container {
    background: var(--tb-bg);
    min-height: 100vh;
    padding-top: 0.5rem;
}

/* === Course heading — single source of truth for the page title ========== */
.course-heading {
    margin-bottom: 1rem;
}

.course-heading h1 {
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--tb-text);
    margin: 0 0 0.15rem;
    letter-spacing: -0.01em;
}

.course-heading-sub {
    margin: 0;
    color: var(--tb-text-muted);
    font-size: 0.92rem;
}

.course-heading-count {
    color: var(--tb-text-subtle);
    font-variant-numeric: tabular-nums;
    margin-left: 0.3em;
}

.course-heading-breadcrumb {
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
}

.course-heading-breadcrumb a {
    color: var(--tb-text-muted);
    text-decoration: none;
}

.course-heading-breadcrumb a:hover {
    color: var(--tb-accent);
}

/* === Unit picker — dropdown (replaces the earlier chip row) ============== */
.unit-picker-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
    padding: 0.55rem 0.85rem;
    background: var(--tb-card);
    border: 1px solid var(--tb-border);
    border-radius: 10px;
}

.unit-picker-label {
    font-size: 0.78rem;
    color: var(--tb-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0;
    white-space: nowrap;
}

.unit-picker-select {
    flex: 1;
    max-width: 420px;
}

/* Unit title becomes a clickable link on the overview page */
.unit-title-link {
    color: inherit;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color 0.15s, color 0.15s;
}

.unit-title-link:hover {
    color: var(--tb-accent);
    border-bottom-color: var(--tb-accent);
}

/* === Footer prev/next nav =============================================== */
.unit-footer-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
    margin-top: 2rem;
}

.unit-nav-link {
    display: flex;
    flex-direction: column;
    padding: 0.85rem 1rem;
    border: 1px solid var(--tb-border);
    border-radius: 10px;
    background: var(--tb-card);
    color: var(--tb-text);
    text-decoration: none;
    transition: border-color 0.15s, background 0.15s;
    min-height: 70px;
}

.unit-nav-link:hover {
    border-color: var(--tb-accent);
    background: var(--tb-accent-soft);
    color: var(--tb-text);
}

.unit-nav-link.is-empty {
    border-style: dashed;
    background: var(--tb-bg);
    pointer-events: none;
}

.unit-nav-next { text-align: right; }

.unit-nav-label {
    color: var(--tb-text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.unit-nav-title {
    color: var(--tb-text);
    font-weight: 600;
    font-size: 0.92rem;
}

/* === Unified header — calm white card with stat tiles ===================== */

.unified-header .header-welcome h5 {
    color: var(--tb-text) !important;
}



/* Subtle accent colour for the meaningful stats — no longer relies on
   contrast against a teal gradient background. */

.header-stat.streak .value { color: #92400e; }


.header-stat.due .value { color: #991b1b; }


/* === Search container ==================================================== */
.unified-header .search-container input {
    background: var(--tb-bg);
    border: 1px solid var(--tb-border);
    color: var(--tb-text);
}

.unified-header .search-container input::placeholder {
    color: var(--tb-text-subtle);
}

/* === Topic accordion — flat soft cards instead of shadowy boxes ========== */

.topic-accordion .accordion-item:hover {
    border-color: #d1d5db !important;
}


.topic-accordion .accordion-button:hover {
    background: #fafcfd !important;
}





/* === Subtopic mini-cards ================================================ */




/* === Welcome placeholder + empty states ================================= */


/* === Heatmap modal — softer ============================================= */


.heatmap-view-options .heatmap-view-btn {
    background: var(--tb-card) !important;
    border: 1px solid var(--tb-border) !important;
    color: var(--tb-text-muted) !important;
}

.heatmap-view-options .heatmap-view-btn.active {
    background: var(--tb-accent-soft) !important;
    border-color: var(--tb-accent) !important;
    color: var(--jmaths-dark-blue) !important;
}

/* === Floating course/unit selector bar ================================== */

/* === Practice cart (floating) =========================================== */
.practice-cart-floating,
.floating-cart-bar {
    background: var(--tb-card) !important;
    border: 1px solid var(--tb-border) !important;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08) !important;
    border-radius: 10px !important;
    color: var(--tb-text) !important;
}

/* === Section headers (where the template uses h2/h6 with text-muted) ==== */
.tb-section-header,
.topic-browser-container h6.text-muted {
    font-size: 0.74rem !important;
    text-transform: uppercase !important;
    letter-spacing: 0.06em !important;
    color: var(--tb-text-muted) !important;
    font-weight: 600 !important;
    margin-bottom: 0.55rem !important;
}

/* === Question pick / cart button on question cards ====================== */
.question-card,
.concept-card {
    background: var(--tb-card) !important;
    border: 1px solid var(--tb-border) !important;
    border-radius: 10px !important;
    box-shadow: none !important;
}

.question-card:hover,
.concept-card:hover {
    border-color: #d1d5db !important;
}

/* Flat concept-card: when a unit has only one auto-generated 'Practice
   questions' wrapper, drop the surrounding border/padding so questions
   render directly under the unit header without the visual nesting. */
.concept-card-flat {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
}

.concept-card-flat .questions-container {
    padding: 0 !important;
}

/* === Source badges (V2 past-paper, etc.) ================================ */
.source-badge {
    display: inline-block;
    margin-left: 0.4em;
    padding: 0.12rem 0.5rem;
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    vertical-align: middle;
}

.source-badge.v2-badge {
    background: #ede9fe;
    color: #5b21b6;
    border: 1px solid #ddd6fe;
}

a.source-badge.v2-badge:hover {
    background: #ddd6fe;
    text-decoration: none;
}

.source-badge.v2-badge.source-badge-muted {
    opacity: 0.6;
    cursor: help;
}

.source-badge.qb-badge {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.source-badge.gen-badge {
    background: #f3f4f6;
    color: #4b5563;
    border: 1px solid #e5e7eb;
}

.source-badge.cn-badge {
    background: #ffedd5;
    color: #9a3412;
    border: 1px solid #fed7aa;
}

.source-badge.variant-badge {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.source-badge.legacy-badge {
    background: #f3f4f6;
    color: #9ca3af;
    border: 1px solid #e5e7eb;
}

/* Super-only "Variant of IB-XXX" lineage pill. Yellow tint so admins
   immediately recognise it as a moderation cue, distinct from the
   green variant-badge that students also see. */
.source-badge.variant-source-badge {
    background: #fef9c3;
    color: #713f12;
    border: 1px solid #fde68a;
    text-decoration: none;
    font-family: var(--bs-font-monospace, monospace);
    font-size: 0.7rem;
    transition: background-color 0.15s ease;
}
.source-badge.variant-source-badge:hover {
    background: #fde68a;
    color: #713f12;
}

/* Question previews — show the full body so the row reads as a complete
   card (not a clamped row). Card-style was added Phase 4; previously
   .question-preview was max-height: 280px + overflow: hidden which
   truncated longer questions. */
.question-preview {
    line-height: 1.6;
    color: var(--tb-text);
    font-size: 0.92rem;
    position: relative;
    max-height: 380px;
}

/* Constrain inline diagrams (Mathpix imports often have native widths
   over 600px, which crowds the question card). Cap by both width and
   height so wide and tall diagrams both shrink to a sensible thumbnail
   inline; the full-size diagram still opens in the question modal. */
.question-preview img {
    max-width: 100% !important;
    max-height: 160px !important;
    width: auto !important;
    height: auto !important;
    display: block;
    margin: 0.4rem 0;
    border-radius: 4px;
}

/* Tables inside question previews — generated questions often contain
   data tables (frequency tables, probability distributions). Base CSS
   gives them no border or spacing, so they render as plain text. */
.question-preview table,
.exam-question-context table,
.exam-part-content table,
.ib-exam-paper table {
    border-collapse: collapse;
    margin: 0.5rem 0;
    font-size: 0.86rem;
    width: auto;
    max-width: 100%;
}

.question-preview table th,
.question-preview table td,
.exam-question-context table th,
.exam-question-context table td,
.exam-part-content table th,
.exam-part-content table td,
.ib-exam-paper table th,
.ib-exam-paper table td {
    border: 1px solid var(--tb-border);
    padding: 0.3rem 0.55rem;
    text-align: left;
    vertical-align: top;
}

.question-preview table thead th,
.question-preview table th:first-child,
.exam-question-context table thead th,
.exam-question-context table th:first-child,
.exam-part-content table thead th,
.exam-part-content table th:first-child,
.ib-exam-paper table thead th,
.ib-exam-paper table th:first-child {
    background: var(--tb-bg);
    font-weight: 600;
}

/* Bump the clamp so a small table doesn't get chopped — but keep the
   ceiling so very long questions still fade out gracefully. */

.question-preview.is-long::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--tb-card));
    pointer-events: none;
}

/* === Star ratings (confidence) — same calm pastels as mastery ============ */
.confidence-stars .star,
.power-meter .star {
    color: #fbbf24;
}

/* Reset overly saturated badges to pastel equivalents */
.badge.bg-success { background: #d1fae5 !important; color: #065f46 !important; }
.badge.bg-warning { background: #fef3c7 !important; color: #92400e !important; }
.badge.bg-danger  { background: #fee2e2 !important; color: #991b1b !important; }
.badge.bg-info    { background: #dbeafe !important; color: #1e40af !important; }

/* Parent/variant side-by-side compare pane (builder preview modal) */
.compare-grid.is-split { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.compare-grid.is-split .compare-pane { border-left: 1px solid var(--border, #dee2e6); padding-left: 1.25rem; }
.compare-col-label { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted, var(--color-secondary)); margin-bottom: .5rem; font-weight: 600; }
@media (max-width: 768px) { .compare-grid.is-split { grid-template-columns: 1fr; } }
.badge.bg-primary { background: #ccfbf1 !important; color: #115e59 !important; }

/* ========================================================================
   BUILDER INFINITE SCROLL
   ======================================================================== */

/* The sentinel div sits below the question grid and is watched by an
   IntersectionObserver (rootMargin 600px) to trigger loadMore() before the
   user reaches the bottom of the list. */
#scrollSentinel {
    height: 1px;
    margin: 0;
}

/* --- ./components/builder.css --- */
.builder-layout {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 60px);
}

.builder-topbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: white;
    border-bottom: 1px solid #dee2e6;
    flex-shrink: 0;
}
.builder-title { flex: 1; max-width: 400px; }
.builder-time { width: 110px; }

.builder-body {
    display: grid;
    grid-template-columns: 38% 62%;
    gap: 0;
    flex: 1;
    overflow: hidden;
}

.builder-left {
    border-right: 1px solid #dee2e6;
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.builder-name-bar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: white;
    border-bottom: 1px solid #dee2e6;
}
.builder-name-icon { color: #9aa0a6; flex-shrink: 0; }
.builder-name-input {
    flex: 1;
    min-width: 0;
    border: 1px solid transparent;
    border-radius: 6px;
    padding: 0.3rem 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: #212529;
    background: transparent;
}
.builder-name-input:hover { border-color: #e2e6ea; }
.builder-name-input:focus {
    outline: none;
    border-color: var(--primary, var(--color-primary-hover));
    background: #fff;
}
.builder-name-input::placeholder { font-weight: 400; color: #adb5bd; }
.builder-name-state {
    flex-shrink: 0;
    font-size: 0.78rem;
    color: var(--bs-green);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.builder-name-state.show { opacity: 1; }
.builder-left .nav-tabs {
    flex-shrink: 0;
    padding: 0 0.5rem;
    border-bottom: 1px solid #dee2e6;
    background: white;
    align-items: center;
    min-height: 46px;
}
.builder-tab-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.builder-right {
    background: var(--bs-gray-light);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
/* Scroll + pan viewport. The zoom toolbar sits above it (not inside), so
   the toolbar stays put while the paper pans in both axes. */
.builder-preview-viewport {
    flex: 1;
    overflow: auto;
    padding: 1rem;
    cursor: grab;
}
.builder-preview-viewport.is-panning { cursor: grabbing; }
.builder-preview-viewport.is-panning * { user-select: none; }
/* Sized by JS to the *scaled* footprint of the mount so margin:auto
   centres it when it fits and the viewport scrolls (pans) when it
   doesn't — neither of which transform:scale does on its own. */
.builder-preview-stage {
    margin: 0 auto;
}
.builder-preview-mount {
    background: white;
    border-radius: 4px;
    padding: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    min-height: 400px;
    width: max-content;
    transform: scale(var(--builder-zoom, 0.5));
    transform-origin: top left;
    transition: transform 120ms ease;
}
.builder-preview-mount #canvasApp .container-fluid,
.builder-preview-mount .container-fluid {
    margin-right: 0 !important;
}
/* The shared paper-renderer applies its own compact-preview scale to
   .preview-wrapper (transform: scale(.5); transform-origin: top center).
   Combined with the builder's mount zoom that double-scales and pushes
   the page off-centre. Neutralise it so the mount transform is the single
   source of zoom (same as the @media print reset does). */
.builder-preview-mount .preview-wrapper {
    transform: none !important;
}

/* Teacher iframe preview: the real server-rendered print doc (paper_print.html)
   embedded so preview == PDF. The mount's transform:scale(var(--builder-zoom))
   handles zoom; the iframe itself is 1:1 and auto-sized to its content height
   by JS on load. The iframe is a touch wider than A4 (794px @96dpi) so the
   doc's grey "desk" shows a margin on either side of the white pages. */
.builder-preview-iframe {
    width: 840px;
    border: none;
    display: block;
}

/* When the mount holds the print-doc iframe, the doc supplies its own page
   chrome (grey desk + white A4 pages with shadows), so drop the mount's white
   card framing — otherwise it paints a white border/band around the desk. */
.builder-preview-mount--doc {
    background: #e9edf0;
    padding: 0;
    box-shadow: none;
    border-radius: 0;
}

/* Instructions editor overlay. */
.builder-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-index-toast);
}
.builder-modal {
    background: #fff;
    border-radius: 8px;
    padding: 1.25rem;
    width: min(560px, 92vw);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.builder-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

/* Three-column row: Add on the left, the question/marks count centred,
   the Auto-saved hint on the right. Equal-width side cells keep the count
   centred regardless of how wide the side content is. */
.builder-cart-summary {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    font-size: 0.85rem;
    color: var(--color-secondary);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #dee2e6;
    margin-bottom: 0.75rem;
}
.builder-cart-side {
    display: inline-flex;
    align-items: center;
}
.builder-cart-side--right {
    justify-content: flex-end;
}
.builder-cart-count-text {
    text-align: center;
    white-space: nowrap;
}
.builder-autosave-hint {
    color: var(--bs-green);
    font-size: 0.8rem;
    white-space: nowrap;
}
/* Compact "add more questions" affordance, since the full-width button at
   the bottom of the list sat below the fold. */
.builder-add-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.12rem 0.6rem;
    border-radius: 999px;
    background: var(--primary, var(--color-primary));
    color: #fff;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    transition: background 120ms ease;
}
.builder-add-btn:hover {
    background: var(--primary-hover, var(--color-primary-hover));
    color: #fff;
}

.builder-q-card {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.5rem;
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}
.drag-handle { cursor: grab; color: #adb5bd; padding-top: 0.25rem; flex-shrink: 0; }
.drag-handle:active { cursor: grabbing; }
.builder-q-num {
    font-weight: 600;
    background: var(--color-primary-hover);
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}
.builder-q-body { flex: 1; min-width: 0; }
.builder-q-title {
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
    color: #212529;
}
.builder-q-parts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    font-size: 0.75rem;
}
.builder-part-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--bs-gray-light);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    cursor: pointer;
    user-select: none;
}
.builder-part-toggle input { margin: 0; cursor: pointer; }
.builder-part-toggle:has(input:checked) { background: #d1fae5; }

.builder-remove-btn {
    flex-shrink: 0;
    padding: 0.1rem 0.25rem;
}

/* Collapsible card header: chevron + title on one row. */
.builder-q-title-row {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.builder-q-collapse {
    flex-shrink: 0;
    border: none;
    background: none;
    padding: 0;
    color: #adb5bd;
    cursor: pointer;
    font-size: 0.7rem;
    width: 0.9rem;
}
.builder-q-collapse:hover { color: #495057; }
.builder-q-title-row .builder-q-title { margin-bottom: 0; }

/* Per-question layout controls — one row per part: label · break-before-part ·
   line stepper. Always shown (teacher). */
.builder-q-layout {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin-top: 0.45rem;
    padding-top: 0.45rem;
    border-top: 1px dashed #dee2e6;
}
.builder-break-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    color: #495057;
    cursor: pointer;
    user-select: none;
}
.builder-break-toggle input { margin: 0; cursor: pointer; }
.builder-wl-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.8rem;
}
.builder-wl-label { color: var(--color-secondary); min-width: 1.4rem; font-weight: 600; }
.builder-break-part {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--color-secondary);
    cursor: pointer;
    user-select: none;
}
.builder-break-part input { margin: 0; cursor: pointer; }
.builder-wl-stepper {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-left: auto;
}
.builder-wl-btn {
    border: 1px solid #ced4da;
    background: #fff;
    border-radius: 4px;
    width: 1.6rem;
    height: 1.6rem;
    line-height: 1;
    padding: 0;
    color: #495057;
    cursor: pointer;
    font-size: 1rem;
}
.builder-wl-btn:hover { background: var(--bs-gray-light); }
.builder-wl-count {
    min-width: 1.2rem;
    text-align: center;
    font-weight: 600;
}

@media (max-width: 991px) {
    .builder-body { grid-template-columns: 1fr; }
    .builder-left {
        border-right: none;
        border-bottom: 1px solid #dee2e6;
        max-height: 50vh;
    }
}

/* ─── Generating overlay (PDF/DOCX server render) ─── */
.builder-gen-overlay {
    position: fixed;
    inset: 0;
    z-index: 1090;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(2px);
    animation: builder-gen-fade 160ms ease;
}
@keyframes builder-gen-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}
.builder-gen-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2rem 2.5rem;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
    min-width: 260px;
    text-align: center;
}
.builder-gen-spinner {
    width: 44px;
    height: 44px;
    border: 4px solid var(--bs-gray-light);
    border-top-color: var(--primary, var(--color-primary));
    border-radius: 50%;
    animation: builder-gen-spin 0.8s linear infinite;
}
@keyframes builder-gen-spin {
    to { transform: rotate(360deg); }
}
.builder-gen-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #212529;
}
.builder-gen-tip {
    font-size: 0.85rem;
    color: var(--color-secondary);
    min-height: 1.2em;
}

/* ─── Zoom toolbar (right pane top, above the preview mount) ─── */
.builder-zoom-toolbar {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 1rem;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    position: sticky;
    top: 0;
    z-index: 5;
}
.builder-zoom-label {
    font-variant-numeric: tabular-nums;
    font-size: 0.85rem;
    color: #495057;
    min-width: 3em;
    text-align: center;
}
/* Right side of the preview toolbar. Two groups — the output cluster
   (Download + Assign) and the view pill — share one control height so
   their tops and bottoms line up exactly. */
.builder-toolbar-actions {
    --builder-ctrl-h: 34px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
/* Trim the action buttons so Download/Assign aren't oversized. */
.builder-toolbar-actions .btn {
    white-space: nowrap;
    height: 28px;
    display: inline-flex;
    align-items: center;
    font-size: 0.8rem;
    padding: 0 0.7rem;
    line-height: 1;
}
/* Output cluster: Download + Assign boxed together so they read as one
   "export" group, set apart from the preview-mode pill beside it. */
.builder-action-cluster {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    height: var(--builder-ctrl-h);
    padding: 0 0.3rem;
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 8px;
}

/* Segmented pill: one joined control, active half filled. Same height as
   the cluster so the two groups line up. */
.builder-view-pill {
    display: inline-flex;
    align-items: center;
    height: var(--builder-ctrl-h);
    padding: 0 3px;
    background: var(--bs-gray-light);
    border-radius: 999px;
}
.builder-view-pill-btn {
    border: 0;
    background: transparent;
    color: #495057;
    font-size: 0.8rem;
    font-weight: 500;
    line-height: 1;
    height: 26px;
    padding: 0 0.85rem;
    border-radius: 999px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 120ms ease, color 120ms ease;
}
.builder-view-pill-btn:hover:not(.active) {
    color: #212529;
}
.builder-view-pill-btn.active {
    background: var(--primary, var(--color-primary));
    color: #fff;
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

/* ─── Save / Reset toast notification ───
   A single shared DOM node at bottom-right. Vue's showToast() updates
   text + class. CSS handles slide-in/out via the .show modifier. */
.builder-toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    background: #495057;
    color: white;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 200ms ease, transform 200ms ease;
    pointer-events: none;
    z-index: var(--z-index-toast);
}
.builder-toast.show {
    opacity: 1;
    transform: translateY(0);
}
.builder-toast--success { background: var(--bs-green); }
.builder-toast--error   { background: #dc3545; }
.builder-toast--info    { background: var(--bs-blue); }

/* =====================================================================
   PRINT — restore canvas fidelity inside the v3 embedded preview pane.
   ─────────────────────────────────────────────────────────────────────
   When v3 is active, .preview-wrapper may have transform: scale(...)
   applied for the on-screen shrink, and .builder-preview-mount wraps
   the canvas in a grey-padded box. Both bleed into print and cause:
     - transform persists into print → page renders at 50% scale on paper
     - mount padding + background reduces usable paper area
   Reset both for print so the canvas pages emerge at 100% on A4 with
   no extra chrome.
   ===================================================================== */
@media print {
    .builder-topbar,
    .builder-left {
        display: none !important;
    }
    .builder-layout,
    .builder-body,
    .builder-right {
        display: block !important;
        height: auto !important;
        overflow: visible !important;
        background: white !important;
        padding: 0 !important;
        margin: 0 !important;
        border: none !important;
        grid-template-columns: none !important;
    }
    .builder-preview-viewport {
        overflow: visible !important;
        padding: 0 !important;
    }
    .builder-preview-stage {
        width: auto !important;
        height: auto !important;
        margin: 0 !important;
    }
    .builder-preview-mount {
        background: white !important;
        padding: 0 !important;
        margin: 0 !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        overflow: visible !important;
        max-height: none !important;
        width: auto !important;
        /* transform:scale persists into print otherwise — the page would
           print at the on-screen zoom (e.g. 50%) instead of full A4. */
        transform: none !important;
    }
    .builder-zoom-toolbar {
        display: none !important;
    }
    .builder-preview-mount .preview-wrapper {
        transform: none !important;
        transform-origin: top left !important;
        width: 100% !important;
        max-width: 100% !important;
    }
}

/* ─── Headless-PDF render mode ────────────────────────────────────────
   When the page is fetched by the Vercel headless-Chrome renderer it
   carries `?headless=1`, which base.html turns into body.jmaths-headless.
   Strip all site chrome so the PDF gets the canvas pages and nothing
   else. Mirrors the @media print block above so user-triggered print
   and server-triggered PDF render produce the same output. */
body.jmaths-headless #beta-banner,
body.jmaths-headless .jmaths-nav,
body.jmaths-headless .mobile-nav,
body.jmaths-headless > footer,
body.jmaths-headless .page-wrapper > .container-fluid > .messages,
body.jmaths-headless .builder-topbar,
body.jmaths-headless .builder-left,
body.jmaths-headless .builder-zoom-toolbar,
body.jmaths-headless #cookie-notice,
body.jmaths-headless .cookie-notice {
    display: none !important;
}

/* Strip the preview-page chrome (teal border + ::before strip + drop
   shadow) when rendering for a real PDF. WYSIWYG is the goal for the
   browser preview; for the PDF (where the paper IS the canvas) the
   chrome turns into a fake outline that looks unprofessional. */
body.jmaths-headless .preview-page {
    border: none !important;
    box-shadow: none !important;
    margin: 0 auto !important;
}
body.jmaths-headless .preview-page::before {
    display: none !important;
}

/* Same treatment in @media print so user-triggered browser print
   produces the same clean output. */
@media print {
    .preview-page {
        border: none !important;
        box-shadow: none !important;
    }
    .preview-page::before {
        display: none !important;
    }
}

body.jmaths-headless .builder-layout,
body.jmaths-headless .builder-body,
body.jmaths-headless .builder-right {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
    background: white !important;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    grid-template-columns: none !important;
}

body.jmaths-headless .builder-preview-viewport {
    overflow: visible !important;
    padding: 0 !important;
}
body.jmaths-headless .builder-preview-stage {
    width: auto !important;
    height: auto !important;
    margin: 0 !important;
}
body.jmaths-headless .builder-preview-mount {
    background: white !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    overflow: visible !important;
    max-height: none !important;
    width: auto !important;
    transform: none !important;
}

body.jmaths-headless .page-wrapper {
    padding-bottom: 0 !important;
}


/* ============================================================
   Browse page (question selection) — merged from builder-browse.css
   ============================================================ */
/* Paper Builder V2 Styles */

/* Full-width override for V2 builder */
.builder-fullwidth {
    max-width: 100% !important;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.question-preview-text {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
    min-height: 5em;
}

/* Selection Checkbox */
.select-checkbox {
    position: relative;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.select-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 1;
}

.select-checkbox .checkbox-display {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 2px solid var(--bs-blue);
    border-radius: 6px;
    background: white;
    transition: all 0.2s;
}

.select-checkbox input[type="checkbox"]:checked + .checkbox-display {
    background: var(--bs-blue);
    border-color: var(--bs-blue);
}

.select-checkbox .checkbox-display i {
    color: white;
    font-size: 14px;
    display: none;
}

.select-checkbox input[type="checkbox"]:checked + .checkbox-display i {
    display: block;
}

.select-checkbox:hover .checkbox-display {
    border-color: #0a58ca;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

/* Floating Cart */
.floating-cart {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 340px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
    z-index: var(--z-index-modal);
    overflow: hidden;
    transition: all 0.3s ease;
}

.floating-cart.empty {
    width: auto;
}

.cart-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--primary);
    color: white;
    cursor: pointer;
    user-select: none;
}

.cart-badge {
    position: relative;
    font-size: 1.25rem;
}

.cart-badge .count {
    position: absolute;
    top: -10px;
    right: -12px;
    background: #dc3545;
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
    min-width: 20px;
    text-align: center;
}

.cart-summary {
    flex: 1;
    font-weight: 500;
}

.cart-toggle {
    transition: transform 0.3s;
}

.floating-cart.expanded .cart-toggle {
    transform: rotate(180deg);
}

.cart-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.floating-cart.expanded .cart-body {
    max-height: 400px;
}

.cart-items {
    padding: 0.75rem;
    max-height: 280px;
    overflow-y: auto;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.75rem;
    background: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.cart-item:last-child {
    margin-bottom: 0;
}

.cart-item-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: 0.5rem;
}

.cart-item-marks {
    color: var(--bs-green);
    font-weight: 600;
    margin-right: 0.5rem;
}

.btn-cart-remove {
    background: none;
    border: none;
    color: #dc3545;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.btn-cart-remove:hover {
    background: rgba(220, 53, 69, 0.1);
}

.cart-footer {
    padding: 0.75rem;
    border-top: 1px solid #e5e7eb;
}

.question-number-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
}

.question-title-text {
    flex: 1;
    font-size: 1rem;
    font-weight: 500;
}

.parts-list {
    padding: 1rem;
}

.part-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
    background: white;
}

.part-item:last-child {
    margin-bottom: 0;
}

.part-item.excluded {
    opacity: 0.5;
    background: #f8f9fa;
}

.part-item.excluded .part-content {
    text-decoration: line-through;
    color: var(--color-secondary);
}

.part-item:hover {
    border-color: var(--primary);
}

.part-label {
    font-weight: 600;
    color: var(--primary);
    min-width: 60px;
}

.part-content {
    flex: 1;
    color: #495057;
    font-size: 0.875rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.part-marks {
    background: #e3f2fd;
    color: #1976d2;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-label {
    color: var(--color-secondary);
}

.stat-value {
    font-weight: 600;
    font-size: 1.1rem;
    color: #212529;
}

/* Question Grid */
.questions-grid {
    display: grid;
    gap: 1.25rem;
}

.questions-grid.grid-cols-auto {
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
}

.questions-grid.grid-cols-1 {
    grid-template-columns: 1fr;
    max-width: 900px;
}

.questions-grid.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

/* Compact card title */
.card-title-text {
    font-weight: 600;
    font-size: 0.9rem;
    color: #212529;
}

.min-width-0 {
    min-width: 0;
}

/* Info popover icon */
.info-popover {
    cursor: help;
    padding: 4px 6px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.info-popover:hover {
    opacity: 1;
}

/* Full content view */
.question-full-text {
    line-height: 1.6;
    color: #333;
    max-height: 400px;
    overflow-y: auto;
}

.question-full-text img {
    max-width: 100%;
    height: auto;
    margin: 0.5rem 0;
}

/* Mark scheme formatting */
.mark-scheme-section .card-body {
    font-size: 0.9rem;
    line-height: 1.8;
}

.mark-scheme-section .math-content {
    white-space: pre-wrap;
}

/* Award markers styling */
.mark-award {
    display: block;
    padding: 0.25rem 0.5rem;
    margin: 0.25rem 0;
    background: #e8f5e9;
    border-left: 3px solid #4caf50;
    border-radius: 0 4px 4px 0;
}

.mark-note {
    display: block;
    padding: 0.25rem 0.5rem;
    margin: 0.25rem 0;
    background: #fff3e0;
    border-left: 3px solid #ff9800;
    border-radius: 0 4px 4px 0;
    font-style: italic;
}

/* Smaller badges */
.badge-sm {
    font-size: 0.7rem;
    padding: 0.2em 0.5em;
}

/* Question List View */
.questions-list-view {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
    max-height: calc(100vh - 280px);
    overflow-y: auto;
}

.question-list-item {
    transition: background 0.15s;
    cursor: pointer;
}

.question-list-item:hover {
    background: #f8f9fa;
}

.question-list-item:last-child {
    border-bottom: none !important;
}

/* Loading State */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-secondary);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

/* V2 Breadcrumb - Consistent teal theme */
.breadcrumb-v2 {
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    padding: 1rem 0;
    margin-bottom: 1.5rem;
}

.breadcrumb-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.breadcrumb-step {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: 8px;
    user-select: none;
}

.breadcrumb-step:not(.disabled) {
    cursor: pointer !important;
}

.breadcrumb-step .step-content {
    color: #374151;
}

.breadcrumb-step:hover:not(.disabled):not(.active) {
    background: rgba(var(--color-primary-rgb), 0.1);
}

.breadcrumb-step.active {
    background: var(--color-primary);
    color: white;
}

.breadcrumb-step.active .step-content {
    color: white;
}

.breadcrumb-step.completed .step-content {
    color: #374151;
}

.breadcrumb-step.disabled {
    opacity: 0.5;
    cursor: not-allowed !important;
}

.step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e5e7eb;
    color: #6b7280;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.breadcrumb-step.active .step-circle {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.breadcrumb-step.completed .step-circle {
    background: var(--bs-green);
    color: white;
}

.step-content {
    display: flex;
    flex-direction: column;
}

.step-title {
    font-weight: 600;
    font-size: 0.875rem;
}

.step-subtitle {
    font-size: 0.75rem;
    opacity: 0.7;
}

.breadcrumb-connector {
    width: 40px;
    height: 2px;
    background: #e5e7eb;
    flex-shrink: 0;
}

.breadcrumb-step.completed + .breadcrumb-connector {
    background: var(--bs-green);
}

.breadcrumb-stats {
    display: flex;
    gap: 2rem;
    margin-left: auto;
}

.breadcrumb-stats .stat-item {
    text-align: center;
}

.breadcrumb-stats .stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.breadcrumb-stats .stat-label {
    font-size: 0.75rem;
    color: var(--color-secondary);
}

/* Preview Modal */
.preview-modal .modal-dialog {
    max-width: 900px;
}

.preview-modal .modal-body {
    max-height: 70vh;
    overflow-y: auto;
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .questions-grid.grid-cols-2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .floating-cart {
        width: calc(100% - 2rem);
        left: 1rem;
        right: 1rem;
    }

    .questions-grid,
    .questions-grid.grid-cols-auto,
    .questions-grid.grid-cols-1,
    .questions-grid.grid-cols-2 {
        grid-template-columns: 1fr;
    }

    .breadcrumb-steps {
        flex-wrap: wrap;
    }

    .breadcrumb-connector {
        display: none;
    }

    .breadcrumb-stats {
        display: none;
    }
}

/* Mobile: Fix content not appearing/scrolling */
@media (max-width: 576px) {
    /* Force single column grid - 380px min is too wide for phones */
    .questions-grid,
    .questions-grid.grid-cols-auto,
    .questions-grid.grid-cols-1,
    .questions-grid.grid-cols-2 {
        grid-template-columns: 1fr !important;
        gap: 0.75rem;
    }

    /* Full-width builder container */
    .builder-fullwidth {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    /* Floating cart: bottom sheet style */
    .floating-cart {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        border-radius: 16px 16px 0 0;
        max-height: 50vh;
        overflow-y: auto;
    }

    .floating-cart .cart-body {
        max-height: 35vh;
    }

    .floating-cart .cart-items {
        max-height: 25vh;
    }

    /* Breadcrumb: icon-only mode */
    .breadcrumb-step {
        padding: 0.5rem 0.75rem;
        gap: 0.5rem;
    }

    .breadcrumb-step .step-content {
        display: none;
    }

    .step-circle {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }

    .question-preview-text {
        -webkit-line-clamp: 3;
        min-height: 4em;
        font-size: 0.875rem;
    }

    /* Filter toolbar: stack vertically */
    .filter-toolbar {
        flex-direction: column;
        gap: 0.5rem;
    }

    .filter-toolbar > * {
        width: 100%;
    }

    /* Modal full width */
    .preview-modal .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }

    .preview-modal .modal-body {
        max-height: 60vh;
        padding: 0.75rem;
    }

    /* Part items: wrap text */
    .part-content {
        white-space: normal;
        -webkit-line-clamp: 2;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* Ensure body scrolls */
    body {
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Main content area scrollable */
    .main-content,
    main,
    [role="main"] {
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* ============================================================
   Browse page — relocated from browse.html inline <style>.
   Generic selectors (.badge, .pagination) are scoped to #browseApp
   so they don't leak onto other pages.
   ============================================================ */
[v-cloak] { display: none; }

.filter-toolbar { position: sticky; top: 70px; z-index: 100; background: var(--jmaths-cream, var(--color-bg-muted)); padding: 0.6rem 1rem; margin-bottom: 1rem; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); border: 1px solid var(--jmaths-light-blue, #a8dadc); }

/* Unified filter pill — same visual for both <select> and custom dropdown buttons */
.filter-pill {
    display: inline-flex; align-items: center;
    height: 31px; padding: 0 2.25rem 0 0.65rem;
    font-size: 0.8125rem; line-height: 1.4;
    color: #212529; background-color: #fff;
    border: 1px solid #ced4da; border-radius: 0.375rem;
    cursor: pointer; white-space: nowrap;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat; background-position: right 0.65rem center; background-size: 14px 10px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    max-width: 200px; overflow: hidden; text-overflow: ellipsis;
}
.filter-pill:hover, .filter-pill:focus { border-color: #86b7fe; outline: 0; box-shadow: 0 0 0 0.2rem rgba(13,110,253,.15); }
.filter-pill-active { border-color: var(--color-primary) !important; background-color: #f0fdfb !important; color: var(--jmaths-dark-blue) !important; font-weight: 500; }
.filter-pill-select { appearance: none; -webkit-appearance: none; }
.filter-pill-search { padding-right: 0.65rem; background-image: none; width: 160px; }
.subtopic-panel { position: absolute; top: calc(100% + 4px); left: 0; z-index: var(--z-index-modal); background: #fff; border: 1px solid #ced4da; border-radius: 0.375rem; padding: 0.5rem; min-width: 290px; max-height: 320px; overflow-y: auto; box-shadow: 0 4px 12px rgba(0,0,0,0.12); }

#browseApp .badge { font-weight: 500; }
#browseApp .badge.bg-info { background: #0ea5e9 !important; color: #fff !important; }
#browseApp .badge.bg-secondary { background: var(--color-text-muted) !important; color: #fff !important; }
#browseApp .badge.bg-success { background: #22c55e !important; color: #fff !important; }
#browseApp .badge.bg-difficulty { background: var(--color-warning) !important; color: #000 !important; }

.floating-cart { position: fixed; bottom: 20px; right: 20px; background: #fff; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.15); z-index: var(--z-index-dropdown); min-width: 300px; }
.floating-cart .cart-header { padding: 12px 16px; background: linear-gradient(135deg, var(--jmaths-medium-blue, var(--color-primary)), var(--jmaths-dark-blue, var(--jmaths-gray-900))) !important; color: #fff; border-radius: 12px 12px 0 0; cursor: pointer; display: flex; align-items: center; gap: 12px; }
.floating-cart:not(.expanded) .cart-header { border-radius: 12px; }
.floating-cart .cart-body { display: none; padding: 12px; max-height: 300px; overflow-y: auto; }
.floating-cart.expanded .cart-body { display: block; max-height: 300px; }
.floating-cart .cart-item { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid #eee; }
.floating-cart .cart-item:last-child { border-bottom: none; }

#browseApp .pagination .page-link { color: var(--jmaths-dark-blue, var(--jmaths-gray-900)); }
#browseApp .pagination .page-item.active .page-link { background: var(--jmaths-medium-blue, var(--color-primary)); border-color: var(--jmaths-medium-blue, var(--color-primary)); }
#browseApp .pagination .page-item.disabled .page-link { color: var(--color-secondary); }
#browseApp .page-ellipsis { padding: 0.375rem 0.75rem; color: var(--color-secondary); }

/* Exam-style preview cards */
.exam-preview-container { margin: 0 auto; }
.exam-preview-container.cols-1 { max-width: 900px; }
.exam-preview-container.cols-2, .exam-preview-container.cols-3 { max-width: 100%; display: grid; gap: 1rem; }
.exam-preview-container.cols-2 { grid-template-columns: repeat(2, 1fr); }
.exam-preview-container.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1200px) { .exam-preview-container.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .exam-preview-container.cols-2, .exam-preview-container.cols-3 { grid-template-columns: 1fr; } }
.exam-question {
    background: #fff;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    contain: layout style;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.cols-1 .exam-question { margin-bottom: 1.5rem; }
.cols-2 .exam-question, .cols-3 .exam-question { height: 400px; }
.exam-question:hover { border-color: var(--color-primary); box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
.exam-question.selected { border-color: var(--bs-green); }
.exam-question-header {
    background: linear-gradient(135deg, #f8f9fa 0%, var(--bs-gray-light) 100%);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    transition: background 0.15s ease;
}
.exam-question.selected .exam-question-header { background: linear-gradient(135deg, #d1e7dd 0%, #badbcc 100%); }
.exam-question-number { font-weight: 700; font-size: 1.1rem; color: var(--jmaths-gray-900); }
.exam-question-body {
    padding: 1rem;
    font-family: "Times New Roman", Georgia, serif;
    font-size: 13pt;
    line-height: 1.7;
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.exam-question-context { margin-bottom: 1rem; }
.exam-question-context img, .exam-part-content img { max-height: 140px; max-width: 100%; width: auto; display: block; margin: 0.25rem auto; }
.cols-2 .exam-question-context img, .cols-2 .exam-part-content img,
.cols-3 .exam-question-context img, .cols-3 .exam-part-content img { max-height: 100px; }
.exam-part { margin-left: 1rem; margin-bottom: 0.3rem; }
.exam-part-row { display: flex; align-items: baseline; gap: 0.4em; line-height: 1.35; }
.exam-part-label { font-weight: 600; flex-shrink: 0; min-width: 1.5em; }
.exam-part-content { flex: 1 1 auto; min-width: 0; }
.exam-part-marks { flex-shrink: 0; color: #666; font-size: 10pt; white-space: nowrap; margin-left: auto; padding-left: 0.5rem; }
.preview-modal-img { max-height: 200px; max-width: 100%; width: auto; display: block; margin: 0.25rem auto; cursor: zoom-in; }
.preview-q-context img { max-height: 200px; max-width: 100%; width: auto; display: block; margin: 0.25rem auto; cursor: zoom-in; }
.exam-working-lines { margin-top: 0.5rem; }
.exam-working-line { border-bottom: 1px solid #ccc; height: 24px; margin-bottom: 2px; }
.preview-ms { background: #f6f8fa; border: 1px solid #e2e6ea; font-size: 0.92em; }
.preview-ms img { max-height: 200px; max-width: 100%; width: auto; }
.exam-question-footer {
    background: #f8f9fa;
    padding: 0.5rem 1rem;
    border-top: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    transition: background 0.15s ease;
}
.exam-question.selected .exam-question-footer { background: #d1e7dd; }

/* --- ./components/syllabus-card.css --- */
/* ========================================================================
   SYLLABUS CARDS - Course selection cards
   Split from topic-browser.css for maintainability
   ======================================================================== */

.topic-browser-container {
    min-height: 80vh;
    background: linear-gradient(135deg, var(--jmaths-gray-50) 0%, var(--jmaths-gray-100) 100%);
}

/* Hero Section */
.topic-hero {
    padding: 2rem 0;
}

.topic-hero h1 {
    color: var(--color-text);
}

/* Syllabus Cards */
.syllabus-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 280px;
    background: white;
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.syllabus-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
    text-decoration: none;
    color: inherit;
}

.syllabus-card-icon {
    padding: 2rem;
    text-align: center;
    font-size: 3rem;
    transition: transform 0.3s ease;
}

.syllabus-card:hover .syllabus-card-icon {
    transform: scale(1.1);
}

.syllabus-card-body {
    flex: 1;
    padding: 0 1.5rem 1rem;
    text-align: center;
}

.syllabus-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.syllabus-card-subtitle {
    font-size: 0.9rem;
    color: var(--jmaths-gray-500);
    margin-bottom: 0.25rem;
}

.syllabus-card-level {
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0;
}

.syllabus-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--jmaths-gray-50);
    border-top: 1px solid var(--jmaths-gray-200);
}

.question-count {
    font-size: 0.85rem;
    color: var(--jmaths-gray-500);
}

.browse-link {
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.syllabus-card:hover .browse-link {
    opacity: 1;
    transform: translateX(0);
}

/* Syllabus Card Color Variants */
.syllabus-card-primary {
    border-top: 4px solid var(--color-primary);
}
.syllabus-card-primary .syllabus-card-icon { color: var(--color-primary); }
.syllabus-card-primary .syllabus-card-title { color: var(--color-primary); }
.syllabus-card-primary .syllabus-card-level { color: var(--color-primary); }
.syllabus-card-primary .browse-link { color: var(--color-primary); }
.syllabus-card-primary:hover { border-color: var(--color-primary); }

.syllabus-card-success {
    border-top: 4px solid var(--color-success);
}
.syllabus-card-success .syllabus-card-icon { color: var(--color-success); }
.syllabus-card-success .syllabus-card-title { color: var(--color-success); }
.syllabus-card-success .syllabus-card-level { color: var(--color-success); }
.syllabus-card-success .browse-link { color: var(--color-success); }
.syllabus-card-success:hover { border-color: var(--color-success); }

.syllabus-card-warning {
    border-top: 4px solid var(--color-warning);
}
.syllabus-card-warning .syllabus-card-icon { color: var(--color-warning); }
.syllabus-card-warning .syllabus-card-title { color: var(--color-warning); }
.syllabus-card-warning .syllabus-card-level { color: var(--color-warning); }
.syllabus-card-warning .browse-link { color: var(--color-warning); }
.syllabus-card-warning:hover { border-color: var(--color-warning); }

.syllabus-card-danger {
    border-top: 4px solid var(--color-danger);
}
.syllabus-card-danger .syllabus-card-icon { color: var(--color-danger); }
.syllabus-card-danger .syllabus-card-title { color: var(--color-danger); }
.syllabus-card-danger .syllabus-card-level { color: var(--color-danger); }
.syllabus-card-danger .browse-link { color: var(--color-danger); }
.syllabus-card-danger:hover { border-color: var(--color-danger); }

/* ========================================================================
   MOBILE RESPONSIVE
   ======================================================================== */

@media (max-width: 768px) {
    .topic-browser-container {
        min-height: auto;
        padding: 0;
    }

    .topic-hero {
        padding: 1rem 0;
        text-align: center;
    }

    .topic-hero h1 {
        font-size: 1.5rem;
    }

    .topic-hero .lead {
        font-size: 0.9rem;
    }

    .syllabus-card {
        min-height: 180px;
    }

    .syllabus-card-icon {
        padding: 1rem;
        font-size: 2rem;
    }

    .syllabus-card-body {
        padding: 0 1rem 0.75rem;
    }

    .syllabus-card-title {
        font-size: 1.1rem;
    }

    .syllabus-card-subtitle {
        font-size: 0.8rem;
    }

    .syllabus-card-level {
        font-size: 0.75rem;
    }

    .syllabus-card-footer {
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 0.25rem;
    }

    .browse-link {
        opacity: 1;
        transform: none;
    }
}

@media (max-width: 480px) {
    .topic-hero h1 {
        font-size: 1.25rem;
    }

    .syllabus-card {
        min-height: 160px;
    }

    .syllabus-card-icon {
        padding: 0.75rem;
        font-size: 1.75rem;
    }

    .syllabus-card-title {
        font-size: 1rem;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .syllabus-card:hover {
        transform: none;
    }

    .syllabus-card:active {
        transform: scale(0.98);
    }

    .browse-link {
        opacity: 1;
        transform: none;
    }
}

/* --- ./components/concept-card.css --- */
/* ========================================================================
   CONCEPT CARDS - Question browser cards
   Split from topic-browser.css for maintainability
   ======================================================================== */

.concept-card {
    background: white;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.2s ease;
    scroll-margin-top: 140px;
}

.concept-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.concept-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    cursor: pointer;
    background: var(--jmaths-gray-50);
    border-bottom: 1px solid var(--jmaths-gray-200);
}

.concept-header:hover {
    background: var(--jmaths-gray-100);
}

.concept-info {
    flex: 1;
}

.concept-code {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.concept-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.concept-stats {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.question-count-badge {
    background: var(--jmaths-gray-200);
    color: var(--jmaths-gray-600);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.expand-icon {
    color: var(--color-text-muted);
    transition: transform 0.2s ease;
}

.concept-card.expanded .expand-icon {
    transform: rotate(180deg);
}

/* Empty concept cards */
.concept-card.empty {
    opacity: 0.7;
}

.concept-card.empty .concept-header {
    background: var(--jmaths-gray-50);
}

.concept-card.empty .concept-name {
    color: var(--color-text-muted);
}

/* Studied concept cards */
.concept-card.studied .concept-header {
    background: linear-gradient(135deg, var(--color-primary-bg) 0%, var(--color-info-bg) 100%);
    border-left: 3px solid var(--color-primary);
}

.concept-card.studied .concept-name {
    color: var(--color-primary-hover);
}

/* ========================================================================
   QUESTION LIST ITEMS
   ======================================================================== */

.questions-container {
    display: none;
    padding: 0;
}

.concept-card.expanded .questions-container {
    display: block;
}

/* Topic-browser question rows render as bordered cards — pattern mirrors
   the variant_check.html compare-page so the on-screen rows visually
   match the printed practice paper. CSS variables fall back gracefully
   if the page hasn't loaded paper-canvas-preview CSS first. */
.question-item {
    --paper-teal: var(--color-primary);
    --paper-teal-dark: var(--color-primary-hover);
    --paper-teal-soft: #ccfbf1;

    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.95rem 1.1rem 1rem;
    margin-bottom: 0.7rem;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    cursor: pointer;
    transition: box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
    flex-wrap: wrap;
}

.question-item:hover {
    border-color: var(--paper-teal);
    box-shadow: 0 6px 16px -8px rgba(var(--color-primary-rgb), 0.22);
    transform: translateY(-1px);
}

.question-item.selected {
    border-color: var(--paper-teal);
    background: linear-gradient(to right, var(--paper-teal-soft) 0%, white 16%);
}

.question-item.selected:hover {
    background: linear-gradient(to right, var(--paper-teal-soft) 0%, var(--jmaths-cream) 22%);
}

.question-status-indicator {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.status-not_seen { background: var(--jmaths-gray-200); color: var(--color-text-muted); }
.status-viewed { background: #cfe2ff; color: #0a58ca; }
.status-attempted { background: #fff3cd; color: #997404; }
.status-completed { background: #d1e7dd; color: #0f5132; }
.status-confident { background: var(--color-success); color: white; }
.status-mastered { background: var(--color-primary); color: white; }
.status-flagged { background: #f8d7da; color: #842029; }

.question-content {
    flex: 1;
    min-width: 0;
}

/* Title bar — line with title text, source/variant/concept tags */
.question-title {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: #111827;
    line-height: 1.35;
    margin-bottom: 0.4rem;
    cursor: pointer;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
}

.question-title:hover {
    color: var(--paper-teal-dark, var(--color-primary-hover));
}

.question-title-text {
    margin-right: 0.25rem;
}

.question-ref {
    font-size: 0.72rem;
    color: #9ca3af;
    font-weight: 400;
    opacity: 1;
    background: #f3f4f6;
    padding: 1px 8px;
    border-radius: 999px;
}

.question-preview-text {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card body — fully visible rendered preview, sans-serif Inter */
.question-preview {
    margin-top: 0.45rem;
    padding-left: 0;
    color: #374151;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
    width: 100%;
    flex-basis: 100%;     /* break onto own row so it spans full card width */
    border-top: 1px solid #f3f4f6;
    padding-top: 0.55rem;
}

.question-preview p {
    margin: 0 0 0.45rem;
    display: block;
}

.question-preview p:last-child {
    margin-bottom: 0;
}

.question-preview img {
    display: block;
    max-width: 100%;
    max-height: 200px;
    width: auto;
    height: auto;
    margin: 0.5rem 0;
    border-radius: 4px;
}

.question-preview .mjx-container {
    font-size: 1em;
}

/* Per-part rows inside the question preview — IB-style layout:
   "(a) <content stretches> [3]" with marks right-aligned. */
.question-preview .q-preview-part {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-top: 0.45rem;
    padding-left: 0.7rem;
    border-left: 2px solid var(--paper-teal-soft, #ccfbf1);
    line-height: 1.55;
    font-size: 0.92rem;
    color: #374151;
}
.question-preview .q-preview-part-label {
    flex-shrink: 0;
    color: var(--paper-teal-dark, var(--color-primary-hover));
    font-weight: 700;
}
.question-preview .q-preview-part-content {
    flex: 1;
    min-width: 0;
}
.question-preview .q-preview-part-marks {
    flex-shrink: 0;
    margin-left: auto;
    color: #6b7280;
    font-size: 0.82rem;
    font-weight: 600;
    background: #f3f4f6;
    padding: 1px 8px;
    border-radius: 999px;
    white-space: nowrap;
}
.question-preview .q-preview-part-content p {
    display: inline;
    margin: 0;
}

/* Tag row — pills below title (difficulty / marks / variants / progress) */
.question-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.15rem;
    font-size: 0.72rem;
}

.question-meta > span {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 2px 9px;
    border-radius: 999px;
    background: #f3f4f6;
    color: #4b5563;
    font-weight: 500;
}

/* Marks pill — teal accent so it stands out */
.question-meta > span:has(.fa-star) {
    background: var(--paper-teal-soft, #ccfbf1);
    color: var(--paper-teal-dark, var(--color-primary-hover));
    font-weight: 600;
}

.questions-held-back {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    background: var(--bs-light, #f8f9fa);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    cursor: help;
}

.btn.reveal-locked {
    opacity: 0.55;
    cursor: not-allowed;
}

.revisit-tray {
    margin: 0.5rem 0 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    background: #fffaf0;
    border: 1px solid #f5e7c4;
}

.revisit-tray[hidden] { display: none !important; }

.revisit-tray-header {
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.revisit-tray-items {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
}

.revisit-item {
    flex: 0 0 240px;
    background: #fff;
    border-radius: 0.5rem;
    padding: 0.75rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

.revisit-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.revisit-item-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
    font-size: 0.75rem;
}

.revisit-gap {
    background: var(--bs-warning, #ffc107);
    color: #000;
    padding: 0.1rem 0.4rem;
    border-radius: 999px;
    font-weight: 600;
}

.revisit-code {
    color: var(--color-text-muted);
}

.revisit-item-preview {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.revisit-item-preview p { margin: 0; display: inline; }

.question-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* ========================================================================
   ACTION BUTTONS
   ======================================================================== */

.btn-action {
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--jmaths-gray-300);
    background: white;
    color: var(--jmaths-gray-600);
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-action:hover {
    background: var(--jmaths-gray-50);
    border-color: var(--jmaths-gray-400);
}

.btn-action.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.btn-done { border-color: var(--color-success); color: var(--color-success); }
.btn-done:hover, .btn-done.active { background: var(--color-success); color: white; }

.btn-confident { border-color: var(--color-primary); color: var(--color-primary); }
.btn-confident:hover, .btn-confident.active { background: var(--color-primary); color: white; }

.btn-flag { border-color: var(--color-danger); color: var(--color-danger); }
.btn-flag:hover, .btn-flag.active { background: var(--color-danger); color: white; }

.preview-btn {
    display: flex;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 1px solid var(--jmaths-gray-200);
    background: white;
    color: var(--jmaths-gray-500);
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.preview-btn:hover {
    background: var(--jmaths-gray-100);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.pick-indicator {
    display: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.question-item.selected .pick-indicator {
    display: flex;
}

/* ========================================================================
   MOBILE RESPONSIVE
   ======================================================================== */

@media (max-width: 768px) {
    .concept-header {
        padding: 0.875rem 1rem;
        min-height: 60px;
    }

    .concept-code {
        font-size: 0.7rem;
    }

    .concept-name {
        font-size: 0.95rem;
    }

    .concept-stats {
        gap: 0.5rem;
    }

    .question-count-badge {
        padding: 0.25rem 0.5rem;
        font-size: 0.7rem;
    }

    .question-item {
        padding: 0.875rem 1rem;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .question-status-indicator {
        width: 28px;
        height: 28px;
        font-size: 0.75rem;
    }

    .question-content {
        flex: 1 1 100%;
        order: 2;
    }

    .question-title {
        font-size: 0.95rem;
    }

    .question-preview-text {
        font-size: 0.8rem;
        -webkit-line-clamp: 3;
    }

    .question-meta {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .question-actions {
        order: 3;
        width: 100%;
        justify-content: flex-end;
        padding-top: 0.5rem;
        border-top: 1px solid var(--jmaths-gray-100);
        margin-top: 0.25rem;
    }

    .btn-action {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
        min-height: 44px;
    }
}

@media (max-width: 480px) {
    .concept-header {
        padding: 0.75rem;
    }

    .concept-name {
        font-size: 0.9rem;
    }

    .question-item {
        padding: 0.75rem;
    }

    .question-title {
        font-size: 0.9rem;
    }

    .btn-action {
        padding: 0.5rem;
        font-size: 0.75rem;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .concept-header:hover {
        background: var(--jmaths-gray-50);
    }

    .concept-header:active {
        background: var(--jmaths-gray-100);
    }

    .question-item:hover {
        background: transparent;
    }

    .question-item:active {
        background: var(--jmaths-gray-50);
    }

    .btn-action:hover {
        background: white;
    }

    .btn-action:active {
        background: var(--jmaths-gray-50);
    }
}

/* ─────────────────────────────────────────────────────────────────────
   Objective chip row + right-side total marks pill (added 2026-05).
   ───────────────────────────────────────────────────────────────────── */
.obj-filter-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.1rem 0.6rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px dashed #e5e7eb;
}
.obj-filter-row .obj-filter-label {
    color: #6b7280;
    font-size: 0.78rem;
    font-weight: 500;
    margin-right: 0.15rem;
}
.obj-chip {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    color: #4b5563;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 6px;
    line-height: 1.45;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
    max-width: 170px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.obj-chip:hover {
    background: #f3f4f6;
    border-color: #d1d5db;
}
.obj-chip.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.obj-chip-all.active {
    background: var(--color-primary);
    color: white;
}

/* Total-marks pill on the right side of each card.
   Per IB convention: marks visible at right edge of the question header. */
.q-total-marks-pill {
    display: inline-flex;
    align-items: baseline;
    background: #ccfbf1;
    color: var(--color-primary-hover);
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.4;
    white-space: nowrap;
    margin-right: 6px;
}
.q-total-marks-pill .q-marks-unit {
    font-weight: 500;
    margin-left: 1px;
    opacity: 0.75;
}

/* Marks pill anchored to the RIGHT side of the title bar (IB convention).
   When inside .question-title, push it to the end with margin-left:auto. */
.question-title .q-total-marks-pill {
    margin-left: auto;
    margin-right: 0;
    font-size: 0.78rem;
    padding: 2px 11px;
}

/* Compact actions strip — vertical column on the right edge of the card.
   Just the + button (add to paper) and the ✓ pick-indicator; star rating
   moved into the meta row below the preview for better space efficiency. */
.question-actions-compact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
    margin-left: 0.25rem;
}
.question-actions-compact .preview-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid #e5e7eb;
    background: white;
    border-radius: 8px;
    color: #6b7280;
    transition: all 0.12s ease;
}
.question-actions-compact .preview-btn:hover {
    background: #ccfbf1;
    color: var(--color-primary-hover);
    border-color: var(--color-primary);
}
.question-item.selected .question-actions-compact .preview-btn {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.question-actions-compact .pick-indicator {
    display: none;
    color: var(--color-primary);
    font-size: 0.85rem;
}
.question-item.selected .question-actions-compact .pick-indicator {
    display: block;
}

/* ─────────────────────────────────────────────────────────────────────
   Unit-picker grid (syllabus landing). Click a unit card to drill into
   the dedicated /topics/<syl>/unit/<n>/ page.
   ───────────────────────────────────────────────────────────────────── */
.unit-picker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.unit-picker-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 1.2rem;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.03);
}
.unit-picker-card:not(.unit-picker-locked):hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 20px -10px rgba(var(--color-primary-rgb), 0.3);
    transform: translateY(-2px);
    text-decoration: none;
    color: inherit;
}
.unit-picker-card .topic-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}
.unit-picker-body { flex: 1; min-width: 0; }
.unit-picker-label {
    font-size: 0.7rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 2px;
}
.unit-picker-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: #111827;
    margin: 0 0 4px;
    line-height: 1.3;
}
.unit-picker-meta {
    color: #6b7280;
    font-size: 0.82rem;
}
.unit-picker-arrow {
    color: var(--jmaths-gray-300);
    transition: color 0.15s ease, transform 0.15s ease;
}
.unit-picker-card:hover .unit-picker-arrow {
    color: var(--color-primary);
    transform: translateX(2px);
}
.unit-picker-locked {
    opacity: 0.6;
    cursor: not-allowed;
}

/* --- ./components/power-meter.css --- */
/* ========================================================================
   POWER METER & PROGRESS COMPONENTS
   Split from topic-browser.css for maintainability
   ======================================================================== */

/* ========================================================================
   PROGRESS RING
   ======================================================================== */

.progress-ring {
    position: relative;
    width: 50px;
    height: 50px;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--jmaths-gray-200);
    stroke-width: 4;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 4;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-ring-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
}

.topic-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.topic-progress-text {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ========================================================================
   CONCEPT PROGRESS BAR
   ======================================================================== */

.concept-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.concept-progress-bar {
    width: 50px;
    height: 4px;
    background: var(--jmaths-gray-200);
    border-radius: 2px;
    overflow: hidden;
}

.concept-progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.concept-progress-text {
    min-width: 32px;
    text-align: right;
}

.concept-progress.complete .concept-progress-fill {
    background: var(--color-success);
}

.concept-progress.complete .concept-progress-text {
    color: var(--color-success);
    font-weight: 500;
}

/* ========================================================================
   POWER METER
   ======================================================================== */

.power-meter-container {
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
}

.power-meter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.power-meter-label {
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.power-meter-value {
    font-size: 0.9rem;
    font-weight: 600;
}

.power-meter-bar {
    height: 8px;
    background: rgba(0,0,0,0.2);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.power-meter-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.5s ease-out, background 0.3s ease;
    position: relative;
}

.power-meter-fill.low { background: var(--color-danger); }
.power-meter-fill.medium { background: var(--color-warning); }
.power-meter-fill.high { background: var(--color-primary); }
.power-meter-fill.max { background: var(--color-success); }

.power-meter-fill.boosted {
    animation: powerBoost 0.6s ease-out;
}

@keyframes powerBoost {
    0% { box-shadow: 0 0 0 0 rgba(var(--color-primary-rgb), 0.7); }
    50% { box-shadow: 0 0 20px 5px rgba(var(--color-primary-rgb), 0.5); }
    100% { box-shadow: 0 0 0 0 rgba(var(--color-primary-rgb), 0); }
}

.power-icon.active {
    animation: powerPulse 2s infinite;
}

@keyframes powerPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.streak-badge {
    background: rgba(255,255,255,0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.streak-badge .fire {
    color: #f97316;
}

/* ========================================================================
   PROGRESS PILLS & BADGES
   ======================================================================== */

.progress-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
}

.progress-pill:empty {
    display: none;
}

.status-mastered .progress-pill,
.question-item[data-status="mastered"] .progress-pill {
    background: #dbeafe;
    color: #1e40af;
}

.status-confident .progress-pill {
    background: #d1fae5;
    color: #065f46;
}

.status-completed .progress-pill {
    background: #ecfeff;
    color: #0e7490;
}

.concept-tag {
    display: inline-flex;
    align-items: center;
    background: #ccfbf1;
    color: var(--color-primary-hover);
    border: 1px solid var(--color-primary);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 1px 9px;
    border-radius: 999px;
    margin-left: 0;
    vertical-align: middle;
    line-height: 1.5;
}

.concept-tag.small {
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
}

.variant-badge {
    background: #e0e7ff;
    color: #4338ca;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    font-weight: 500;
}

.last-practiced-badge {
    background: #f0fdf4;
    color: #166534;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 500;
}

/* ========================================================================
   DIFFICULTY INDICATOR
   ======================================================================== */

.difficulty-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.7rem;
    color: var(--jmaths-gray-500);
}

.difficulty-indicator .label {
    font-weight: 500;
}

.difficulty-bars {
    display: inline-flex;
    gap: 2px;
}

.difficulty-bar {
    width: 4px;
    height: 12px;
    border-radius: 1px;
    background: var(--jmaths-gray-200);
}

.difficulty-bar.filled {
    background: var(--jmaths-gray-500);
}

.difficulty-level-1 .difficulty-bar.filled { background: var(--color-success); }
.difficulty-level-2 .difficulty-bar.filled { background: #eab308; }
.difficulty-level-3 .difficulty-bar.filled { background: #f97316; }
.difficulty-level-4 .difficulty-bar.filled { background: var(--color-danger); }

/* ========================================================================
   STAR RATING COMPONENT
   ======================================================================== */

.star-rating {
    display: inline-flex;
    gap: 2px;
    align-items: center;
    border-radius: 6px;
    padding: 2px 4px;
    transition: box-shadow 0.18s ease, background-color 0.18s ease;
}

/* Transient prompt when user tries to reveal before rating. Container-level
   only — never animates the stars themselves (that would re-create the
   hover/leave flicker we already fixed). */
.star-rating.prompt-pulse {
    animation: star-row-pulse 0.6s ease-out;
}

@keyframes star-row-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(13, 110, 253, 0); background: transparent; }
    30%  { box-shadow: 0 0 0 6px rgba(13, 110, 253, 0.25); background: rgba(13, 110, 253, 0.08); }
    100% { box-shadow: 0 0 0 0 rgba(13, 110, 253, 0); background: transparent; }
}

.star-rating .star {
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--jmaths-gray-200);
    /* Transition only color/opacity — animating transform along with the
       .hover class on N siblings causes layout-edge oscillation as the row
       grows/shrinks under the cursor, which reads as a star-rating flicker. */
    transition: color 0.12s ease, opacity 0.12s ease;
    padding: 0 1px;
    line-height: 1;
    display: inline-block;
    transform-origin: center;
}

/* Preview fill from the .hover class (siblings up to the hovered star) —
   color only, no transform. */
.star-rating .star.hover {
    color: var(--color-info);
}

/* No transform on :hover — scaling the hovered star moves its edges under
   the cursor and ping-pongs mouseleave/mouseenter, which reads as flicker.
   Tactile feedback comes from the colour shift on the .hover class set in JS. */
.star-rating .star:hover {
    color: var(--color-info);
}

.star-rating .star.filled {
    color: var(--color-primary);
}

.star-rating .star.filled.low { color: var(--color-danger); }
.star-rating .star.filled.medium { color: var(--color-warning); }
.star-rating .star.filled.high { color: var(--color-primary); }

.star-rating-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    margin-left: 0.5rem;
    min-width: 80px;
}

.star-rating.compact .star {
    font-size: 1rem;
}

.modal-star-rating {
    text-align: center;
    padding: 1rem;
    background: var(--jmaths-gray-50);
    border-radius: 8px;
}

.modal-star-rating .star-rating-prompt {
    font-size: 0.9rem;
    color: var(--jmaths-gray-600);
    margin-bottom: 0.75rem;
}

.modal-star-rating .star-rating {
    justify-content: center;
}

.modal-star-rating .star {
    font-size: 2rem;
    padding: 0 0.25rem;
}

.modal-star-rating .star-rating-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

.modal-star-rating .review-preview {
    font-size: 0.8rem;
    color: var(--color-primary);
    margin-top: 0.5rem;
    font-weight: 500;
}

/* ========================================================================
   PROGRESS SUMMARY
   ======================================================================== */

.progress-summary {
    background: var(--color-primary);
    color: white;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.progress-stats-inline {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
}

.stat-inline {
    white-space: nowrap;
}

.stat-inline span:first-child {
    font-weight: 600;
}

.progress-stats { display: none; }
.stat-item { display: none; }

/* ========================================================================
   MOBILE RESPONSIVE
   ======================================================================== */

@media (max-width: 768px) {
    .progress-ring {
        width: 44px;
        height: 44px;
    }

    .topic-progress {
        gap: 0.35rem;
    }

    .topic-progress-text {
        font-size: 0.7rem;
    }
}

/* --- ./components/practice-cart.css --- */
/* ========================================================================
   PRACTICE CART - Floating question cart
   Split from topic-browser.css for maintainability
   ======================================================================== */

.practice-cart {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index: var(--z-index-dropdown);
    min-width: 320px;
    max-width: 400px;
    display: none;
}

.practice-cart.active {
    display: block;
}

.practice-cart .cart-header {
    padding: 12px 16px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 12px 12px 0 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
}

.practice-cart:not(.expanded) .cart-header {
    border-radius: 12px;
}

.practice-cart .cart-body {
    display: none;
    padding: 12px;
    max-height: 300px;
    overflow-y: auto;
}

.practice-cart.expanded .cart-body {
    display: block;
}

.practice-cart .cart-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    border-bottom: 1px solid var(--jmaths-gray-200);
    font-size: 0.875rem;
}

.practice-cart .cart-item:last-child {
    border-bottom: none;
}

.practice-cart .cart-item .remove-btn {
    color: var(--color-danger);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
}

.practice-cart .cart-item .remove-btn:hover {
    background: #fee2e2;
}

.practice-cart .cart-footer {
    padding: 12px;
    border-top: 1px solid var(--jmaths-gray-200);
    display: flex;
    gap: 8px;
}

.practice-cart .cart-footer .btn {
    flex: 1;
}

.pick-btn.active {
    background: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: white !important;
}

/* ========================================================================
   MOBILE RESPONSIVE
   ======================================================================== */

@media (max-width: 768px) {
    .practice-cart {
        bottom: 0;
        left: 0;
        right: 0;
        max-width: 100%;
        min-width: 100%;
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    }

    .practice-cart .cart-header {
        border-radius: 16px 16px 0 0;
        padding: 16px;
        min-height: 56px;
    }

    .practice-cart:not(.expanded) .cart-header {
        border-radius: 16px 16px 0 0;
    }

    .practice-cart .cart-body {
        max-height: 50vh;
    }

    .practice-cart .cart-footer {
        padding: 16px;
        flex-direction: column;
    }

    .practice-cart .cart-footer .btn {
        min-height: 48px;
    }
}

/* --- ./components/admin-shared.css --- */
/**
 * Admin Shared Component Styles
 * ==============================
 *
 * Generic rules extracted from admin.css that are used on non-admin pages.
 * Loaded globally via jmaths.css @import.
 *
 * Admin-specific rules live in admin.css (loaded only on admin pages).
 */

/* Avatar circles for user initials */
.avatar-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--bs-primary, var(--bs-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.8rem;
}

/* Small card variant */
.card-sm .card-body {
    padding: 0.5rem 0.75rem;
}

/* Borderless table cells */
.table-borderless td {
    padding: 0.5rem 0.75rem;
    border: none;
    vertical-align: top;
}

/* Tab navigation styling */
.nav-tabs .nav-link {
    color: var(--bs-primary, var(--bs-blue));
}

.nav-tabs .nav-link.active {
    color: var(--bs-primary, var(--bs-blue));
    font-weight: 600;
}

/* Empty state styling */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--bs-secondary, var(--color-secondary));
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Stats cards */
.stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--bs-secondary, var(--color-secondary));
}

/* Admin tables — combined rule includes generic .table th */
.admin-table th,
.table th {
    border-bottom: 2px solid var(--theme-border, var(--bs-primary, var(--bs-blue)));
    font-weight: 600;
    color: var(--theme-primary, var(--bs-primary, var(--bs-blue)));
}

.table td {
    vertical-align: middle;
}

/* Button group spacing */
.btn-group .btn {
    border-radius: var(--radius-sm, 0.25rem);
    margin-right: 2px;
}

/* Pagination theming */
.pagination .page-link {
    color: var(--theme-primary, var(--bs-primary, var(--bs-blue)));
    border-color: var(--theme-border, #dee2e6);
}

.pagination .page-item.active .page-link {
    background-color: var(--theme-primary, var(--bs-primary, var(--bs-blue)));
    border-color: var(--theme-primary, var(--bs-primary, var(--bs-blue)));
}

/* Extra large icons */
.icon-xl {
    font-size: 2.5rem;
}

/* Count badge */
.count-badge {
    background: var(--color-danger);
    color: white;
    padding: 0.125rem 0.375rem;
    border-radius: 9999px;
    font-size: 0.625rem;
    margin-left: 0.25rem;
}

/* Profile / onboarding page — used on signup.html and complete_profile.html (base.html) */
.profile-card {
    max-width: 550px;
    margin: 0 auto;
}

.welcome-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bs-primary);
}

.welcome-initial {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bs-primary);
    color: white;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.role-option {
    cursor: pointer;
    padding: 1rem;
    border: 2px solid #dee2e6;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.role-option:hover {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.05);
}

.role-option.selected {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.1);
}

.role-option input {
    display: none;
}

/* --- ./components/shared-components.css --- */
/**
 * Shared Component Styles
 * =======================
 *
 * Consolidated styles for reusable shared components.
 * Migrated from inline <style> blocks in templates/shared/components/.
 */

/* ============================================
   Stats Card Component
   ============================================ */

.stats-card {
    background: white;
    border-radius: 8px;
    padding: 12px 15px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: transform 0.2s, box-shadow 0.2s;
    border-left: 3px solid var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
    min-height: 70px;
}

.stats-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.stats-card-primary {
    border-left-color: var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
}

.stats-card.bg-success {
    border-left-color: #28a745;
}

.stats-card.bg-warning {
    border-left-color: #ffc107;
}

.stats-card.bg-danger {
    border-left-color: #dc3545;
}

.stats-content {
    flex-grow: 1;
}

.stats-number {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--jmaths-dark-blue, #1a365d);
    line-height: 1;
}

.stats-label {
    font-size: 0.75rem;
    color: var(--color-secondary);
    margin-top: 2px;
}

.stats-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
    margin-left: 12px;
}

.stats-icon.bg-primary {
    background: var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
}

.stats-icon {
    font-size: 1.5rem;
    color: var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
    opacity: 0.4;
}

.stats-card.bg-success .stats-icon {
    color: #28a745;
}

.stats-card.bg-warning .stats-icon {
    color: #ffc107;
}

.stats-card.bg-danger .stats-icon {
    color: #dc3545;
}

/* Mobile responsive stats card */
@media (max-width: 768px) {
    .stats-card {
        padding: 10px 12px;
        min-height: 60px;
    }

    .stats-number {
        font-size: 1.2rem;
    }

    .stats-label {
        font-size: 0.7rem;
    }

    .stats-icon {
        font-size: 1.2rem;
    }
}

/* ============================================
   Progress Bar Component
   ============================================ */

.progress-container {
    margin-bottom: 1rem;
}

.progress-label {
    font-weight: 600;
    color: var(--jmaths-dark-blue, #1a365d);
    font-size: 0.9rem;
}

.progress-text {
    font-size: 0.85rem;
    color: var(--color-secondary);
    font-weight: 500;
}

.progress {
    height: 8px;
    background-color: var(--bs-gray-light);
    border-radius: 10px;
    overflow: hidden;
}

.progress-sm {
    height: 5px;
}

.progress-bar {
    transition: width 0.6s ease;
    border-radius: 10px;
    background-size: 20px 20px;
    animation: progress-bar-stripes 1s linear infinite;
}

.progress-sm {
    height: 6px;
}

.progress-md {
    height: 8px;
}

.progress-lg {
    height: 12px;
}

/* Progress bar color gradients */
.progress-bar.bg-success {
    background: linear-gradient(90deg, #28a745, #20c997) !important;
}

.progress-bar.bg-warning {
    background: linear-gradient(90deg, #ffc107, var(--bs-orange)) !important;
}

.progress-bar.bg-danger {
    background: linear-gradient(90deg, #dc3545, #e83e8c) !important;
}

@keyframes progress-bar-stripes {
    0% { background-position: 20px 0; }
    100% { background-position: 0 0; }
}

/* Mobile responsive progress */
@media (max-width: 768px) {
    .progress-label, .progress-text {
        font-size: 0.8rem;
    }
}

/* ============================================
   Action Button Component
   ============================================ */

.action-btn {
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.action-btn:active {
    transform: translateY(0);
}

/* Solid button styles */
.btn-solid-primary {
    background: linear-gradient(135deg, var(--jmaths-medium-blue, var(--bs-blue)), var(--jmaths-dark-blue, #0a58ca));
    border: none;
    color: white;
}

.btn-solid-primary:hover {
    background: linear-gradient(135deg, var(--jmaths-dark-blue, #0a58ca), var(--jmaths-medium-blue, var(--bs-blue)));
    color: white;
}

/* Outline button styles */
.btn-outline-styled {
    background: transparent;
    border: 2px solid var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
    color: var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
}

.btn-outline-styled:hover {
    background: var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
    color: white;
}

/* Solid button variants */
.btn-solid-success {
    background: linear-gradient(135deg, #28a745, #20c997);
    border: none;
    color: white;
}

.btn-solid-success:hover {
    background: linear-gradient(135deg, #20c997, #28a745);
    color: white;
}

.btn-solid-warning {
    background: linear-gradient(135deg, #ffc107, var(--bs-orange));
    border: none;
    color: white;
}

.btn-solid-warning:hover {
    background: linear-gradient(135deg, var(--bs-orange), #ffc107);
    color: white;
}

.btn-solid-danger {
    background: linear-gradient(135deg, #dc3545, #e83e8c);
    border: none;
    color: white;
}

.btn-solid-danger:hover {
    background: linear-gradient(135deg, #e83e8c, #dc3545);
    color: white;
}

/* Link button styles */
.btn-link-primary {
    color: var(--jmaths-medium-blue, var(--bs-primary, var(--bs-blue)));
    border: none;
    background: none;
    text-decoration: none;
}

.btn-link-primary:hover {
    color: var(--jmaths-dark-blue, #0a58ca);
    text-decoration: underline;
}

/* Action button size variations */
.action-btn.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.action-btn.btn-md {
    padding: 10px 20px;
    font-size: 0.9rem;
}

.action-btn.btn-lg {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* Mobile responsive action buttons */
@media (max-width: 768px) {
    .action-btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .action-btn.btn-lg {
        padding: 12px 25px;
        font-size: 1rem;
    }
}

/* --- ./components/data-table.css --- */
/**
 * Data Table Component Styles
 * ===========================
 * Compact, modern data-grid styling for analysis tables.
 */

.data-grid-wrapper {
    border: 1px solid var(--bs-border-color, #dee2e6);
    border-radius: 0.5rem;
    overflow: hidden;
    background: #fff;
}

.data-grid-toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bs-gray-100, #f8f9fa);
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    flex-wrap: wrap;
}

.data-grid-toolbar .filter-group {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    flex-wrap: wrap;
}

.data-grid-toolbar .filter-pill {
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
    border-radius: 1rem;
    border: 1px solid var(--bs-border-color, #dee2e6);
    background: #fff;
    color: var(--bs-body-color, #212529);
    appearance: none;
    cursor: pointer;
    line-height: 1.4;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.data-grid-toolbar .filter-pill:focus {
    border-color: var(--bs-primary, var(--bs-blue));
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.15);
    outline: none;
}

.data-grid-toolbar .filter-pill:hover {
    border-color: var(--bs-gray-400, #ced4da);
}

.data-grid-toolbar .row-count {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bs-secondary, var(--color-secondary));
    letter-spacing: 0.02em;
    text-transform: uppercase;
    white-space: nowrap;
    margin-left: auto;
}

.data-grid-table {
    font-size: 0.775rem;
    margin: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.data-grid-table thead {
    position: sticky;
    top: 0;
    z-index: 2;
}

.data-grid-table thead th {
    background: var(--bs-gray-800, #343a40);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.4rem 0.5rem;
    white-space: nowrap;
    border: none;
    border-bottom: 2px solid var(--bs-gray-900, #212529);
    user-select: none;
    vertical-align: middle;
}

.data-grid-table thead th[data-dsort] {
    cursor: pointer;
    transition: background 0.1s;
}

.data-grid-table thead th[data-dsort]:hover {
    background: var(--bs-gray-700, #495057);
}

.data-grid-table thead th.sort-asc::after,
.data-grid-table thead th.sort-desc::after {
    margin-left: 0.25rem;
    font-size: 0.6rem;
    opacity: 0.8;
}

.data-grid-table thead th.sort-asc::after { content: '\25B2'; }
.data-grid-table thead th.sort-desc::after { content: '\25BC'; }

.data-grid-table tbody td {
    padding: 0.3rem 0.5rem;
    white-space: nowrap;
    border-bottom: 1px solid var(--bs-gray-200, var(--bs-gray-light));
    vertical-align: middle;
    color: var(--bs-body-color, #212529);
}

.data-grid-table tbody tr:hover td {
    background: rgba(13, 110, 253, 0.04);
}

.data-grid-table .col-numeric {
    font-variant-numeric: tabular-nums;
    text-align: right;
    font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.75rem;
}

.data-grid-table .col-name {
    font-weight: 500;
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-grid-table .col-grade {
    font-weight: 700;
    text-align: center;
}

.data-grid-table .col-center {
    text-align: center;
}

.data-grid-table .cell-positive {
    background: rgba(25, 135, 84, 0.1);
}

.data-grid-table .cell-negative {
    background: rgba(220, 53, 69, 0.1);
}

.data-grid-scroll {
    max-height: 70vh;
    overflow: auto;
}

.data-grid-table .badge {
    font-size: 0.65rem;
    padding: 0.2em 0.5em;
    font-weight: 600;
}

/* --- ./components/pages.css --- */
/**
 * Page-Specific Styles
 * ====================
 *
 * Consolidated styles for various pages that don't fit in other component files.
 * Migrated from inline <style> blocks in templates.
 */

/* ============================================
   Contact Pages
   ============================================ */

.contact-card {
    border-radius: 15px;
}

.contact-card label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
}

/* Success icon animation */
.success-icon {
    animation: scaleIn 0.5s ease-out;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

/* ============================================
   Cookie Notice
   ============================================ */

.cookie-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--jmaths-dark-blue, #1d3557);
    color: white;
    z-index: var(--z-index-modal);
    padding: 1rem 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.cookie-notice.show {
    display: block !important;
}

/* ============================================
   Admin Inbox
   ============================================ */

.inbox-card {
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.inbox-card:hover {
    background-color: var(--bs-light, #f8f9fa);
    border-left-color: var(--bs-primary, var(--bs-blue));
}

.inbox-card.unread {
    background-color: #f8f9ff;
    border-left-color: var(--bs-primary, var(--bs-blue));
}

/* ============================================
   Content Overview
   ============================================ */

.content-stat-card {
    border-radius: 10px;
    transition: transform 0.2s;
}

.content-stat-card:hover {
    transform: translateY(-2px);
}

/* ============================================
   Error Report Detail
   ============================================ */

.error-detail-card {
    border-radius: 10px;
}

.error-detail-card .card-header {
    background: linear-gradient(135deg, var(--bs-danger, #dc3545), #c82333);
    color: white;
    border-radius: 10px 10px 0 0;
}

.stacktrace-container {
    background: #1e1e1e;
    color: #d4d4d4;
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
}

/* ============================================
   Footer
   ============================================ */

.hover-text-primary:hover {
    color: var(--bs-primary) !important;
    transition: color 0.2s ease;
}

/* ============================================
   Timeline Items (Error Reports)
   ============================================ */

.timeline-item {
    position: relative;
}

.timeline-item:before {
    content: '';
    position: absolute;
    left: -6px;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--bs-primary, var(--bs-blue));
}

.timeline-item.border-info:before {
    background-color: var(--bs-info, var(--bs-cyan));
}

/* --- ./components/widgets.css --- */
/* ========================================================================
   INTERACTIVE WIDGET CONTAINERS
   Styles for JSXGraph, Desmos API, and p5.js widget blocks
   ======================================================================== */

.widget-container {
    position: relative;
    width: 100%;
    min-height: 300px;
    height: 400px;
    max-height: 600px;
    border-radius: 8px;
    border: 1px solid var(--color-border, var(--color-border));
    background: var(--color-bg, #ffffff);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.widget-container:focus-within {
    border-color: var(--color-primary, var(--color-primary));
    box-shadow: 0 0 0 2px var(--color-primary-bg, rgba(var(--color-primary-rgb), 0.08));
}

/* --------------------------------------------------------------------------
   LOADING STATE
   -------------------------------------------------------------------------- */
.widget-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: var(--color-bg-subtle, var(--color-bg-subtle));
    color: var(--color-text-muted, var(--color-text-muted));
    font-size: 0.9rem;
    z-index: 1;
}

.widget-loading::before {
    content: '';
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border, var(--color-border));
    border-top-color: var(--color-primary, var(--color-primary));
    border-radius: 50%;
    animation: widget-spin 0.8s linear infinite;
}

@keyframes widget-spin {
    to { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   ERROR STATE
   -------------------------------------------------------------------------- */
.widget-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem;
    text-align: center;
    color: var(--color-danger, var(--color-danger));
    background: var(--color-danger-bg, rgba(var(--color-danger-rgb), 0.08));
    height: 100%;
    font-size: 0.9rem;
}

.widget-error i {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

/* --------------------------------------------------------------------------
   JSXGRAPH OVERRIDES
   -------------------------------------------------------------------------- */
.widget-container .jxgbox {
    border: none !important;
    border-radius: 0;
}

.widget-container .JXGtext {
    font-family: inherit;
}

/* --------------------------------------------------------------------------
   DESMOS OVERRIDES
   -------------------------------------------------------------------------- */
.widget-container .dcg-container {
    border: none !important;
}

/* --------------------------------------------------------------------------
   RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .widget-container {
        height: 300px;
        min-height: 250px;
    }
}

@media (max-width: 480px) {
    .widget-container {
        height: 260px;
        min-height: 220px;
        border-radius: 4px;
    }
}

@media (min-width: 1200px) {
    .widget-container {
        max-height: 700px;
    }
}

@media print {
    .widget-container {
        height: auto;
        min-height: 200px;
        border: 1px solid #ccc;
        break-inside: avoid;
    }

    .widget-loading {
        display: none;
    }
}

/* --- ./components/stepthrough.css --- */
/* ========================================================================
   STEPTHROUGH WORKED EXAMPLES
   Animated step-by-step worked example widget
   ======================================================================== */

.stepthrough-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--color-bg, #ffffff);
    font-family: inherit;
}

/* --------------------------------------------------------------------------
   HEADER
   -------------------------------------------------------------------------- */
.stepthrough-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--color-border, var(--color-border));
    background: var(--color-bg-subtle, var(--color-bg-subtle));
    flex-shrink: 0;
}

.stepthrough-label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text, var(--color-text));
}

.stepthrough-counter {
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--color-primary-bg, rgba(var(--color-primary-rgb), 0.08));
    color: var(--color-primary, var(--color-primary));
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    white-space: nowrap;
}

/* --------------------------------------------------------------------------
   VIEWPORT & TRACK — animation container
   -------------------------------------------------------------------------- */
.stepthrough-viewport {
    flex: 1;
    overflow: hidden;
    position: relative;
    min-height: 0;
}

.stepthrough-track {
    position: relative;
    width: 100%;
    height: 100%;
}

/* --------------------------------------------------------------------------
   INDIVIDUAL STEPS
   -------------------------------------------------------------------------- */
.stepthrough-step {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: none;
    overflow-y: auto;
}

/* SLIDE animation */
.stepthrough-track[data-animation="slide"] .stepthrough-step {
    transform: translateX(0);
    transition: opacity 0.35s ease, transform 0.35s ease, visibility 0s 0.35s;
}

.stepthrough-track[data-animation="slide"] .stepthrough-step.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    transition: opacity 0.35s ease, transform 0.35s ease, visibility 0s 0s;
    z-index: 2;
}

.stepthrough-track[data-animation="slide"] .stepthrough-step.exit-left {
    opacity: 0;
    transform: translateX(-40px);
    z-index: 1;
}

.stepthrough-track[data-animation="slide"] .stepthrough-step.exit-right {
    opacity: 0;
    transform: translateX(40px);
    z-index: 1;
}

.stepthrough-track[data-animation="slide"] .stepthrough-step.enter-right {
    transform: translateX(40px);
}

.stepthrough-track[data-animation="slide"] .stepthrough-step.enter-left {
    transform: translateX(-40px);
}

/* FADE animation */
.stepthrough-track[data-animation="fade"] .stepthrough-step {
    transition: opacity 0.35s ease, visibility 0s 0.35s;
}

.stepthrough-track[data-animation="fade"] .stepthrough-step.active {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.35s ease, visibility 0s 0s;
    z-index: 2;
}

.stepthrough-track[data-animation="fade"] .stepthrough-step.exit-left {
    opacity: 0;
    z-index: 1;
}

/* NONE animation */
.stepthrough-track[data-animation="none"] .stepthrough-step.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

/* --------------------------------------------------------------------------
   CONTENT AREA
   -------------------------------------------------------------------------- */
.stepthrough-content {
    padding: 2rem 2.5rem;
    font-size: 1.1rem;
    line-height: 1.75;
    color: var(--color-text, var(--color-text));
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
}

.stepthrough-content p {
    margin-bottom: 0.75rem;
}

.stepthrough-content p:last-child {
    margin-bottom: 0;
}

.stepthrough-content .MathJax {
    font-size: 1.1em;
}

/* --------------------------------------------------------------------------
   NAVIGATION BUTTONS
   -------------------------------------------------------------------------- */
.stepthrough-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 1.25rem;
    border-top: 1px solid var(--color-border, var(--color-border));
    background: var(--color-bg-subtle, var(--color-bg-subtle));
    flex-shrink: 0;
    gap: 0.75rem;
}

.stepthrough-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--color-primary, var(--color-primary));
    border-radius: 6px;
    background: transparent;
    color: var(--color-primary, var(--color-primary));
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    white-space: nowrap;
}

.stepthrough-btn:hover:not(:disabled) {
    background: var(--color-primary, var(--color-primary));
    color: #ffffff;
}

.stepthrough-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--color-border, var(--color-border));
    color: var(--color-text-muted, var(--color-text-muted));
}

.stepthrough-btn-next {
    background: var(--color-primary, var(--color-primary));
    color: #ffffff;
    margin-left: auto;
}

.stepthrough-btn-next:hover:not(:disabled) {
    background: var(--color-primary-hover, var(--color-primary-hover));
    border-color: var(--color-primary-hover, var(--color-primary-hover));
}

.stepthrough-btn-complete {
    background: var(--color-success, var(--color-success));
    border-color: var(--color-success, var(--color-success));
}

.stepthrough-btn-complete:hover:not(:disabled) {
    background: var(--color-success-hover, var(--color-success-hover));
    border-color: var(--color-success-hover, var(--color-success-hover));
}

/* --------------------------------------------------------------------------
   PROGRESS DOTS
   -------------------------------------------------------------------------- */
.stepthrough-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    border-top: 1px solid var(--color-border, var(--color-border));
    flex-shrink: 0;
}

.stepthrough-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--color-border, var(--color-border));
    background: transparent;
    padding: 0;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.stepthrough-dot:hover {
    border-color: var(--color-primary-light, var(--color-primary-light));
}

.stepthrough-dot.viewed {
    border-color: var(--color-primary, var(--color-primary));
    background: var(--color-primary-bg, rgba(var(--color-primary-rgb), 0.08));
}

.stepthrough-dot.active {
    border-color: var(--color-primary, var(--color-primary));
    background: var(--color-primary, var(--color-primary));
    transform: scale(1.2);
}

/* --------------------------------------------------------------------------
   RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .stepthrough-header {
        padding: 0.5rem 0.75rem;
    }

    .stepthrough-content {
        padding: 1.25rem 1rem;
        font-size: 1rem;
    }

    .stepthrough-nav {
        padding: 0.5rem 0.75rem;
    }

    .stepthrough-btn {
        padding: 0.35rem 0.75rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .stepthrough-label {
        font-size: 0.85rem;
    }

    .stepthrough-counter {
        font-size: 0.7rem;
    }

    .stepthrough-content {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .stepthrough-dot {
        width: 8px;
        height: 8px;
    }
}

/* --------------------------------------------------------------------------
   PRINT
   -------------------------------------------------------------------------- */
@media print {
    .stepthrough-container {
        height: auto;
    }

    .stepthrough-step {
        position: static;
        opacity: 1;
        visibility: visible;
        border-bottom: 1px solid #ccc;
        padding-bottom: 0.5rem;
        margin-bottom: 0.5rem;
    }

    .stepthrough-nav,
    .stepthrough-progress {
        display: none;
    }
}

/* --- ./components/graph-algorithm.css --- */
/* ========================================================================
   GRAPH ALGORITHM INTERACTIVE
   Controls and info panel for Kruskal's / Prim's MST widget
   ======================================================================== */

.ga-wrapper {
    display: flex;
    flex-direction: column;
}

.ga-canvas-holder {
    width: 100%;
    line-height: 0;
}

.ga-canvas-holder canvas {
    display: block;
    width: 100% !important;
    height: auto !important;
}

.ga-controls {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--color-border, var(--color-border));
    background: var(--color-bg-subtle, var(--color-bg-subtle));
}

.ga-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    min-height: 1.5rem;
}

.ga-info-text {
    flex: 1;
    color: var(--color-text, var(--color-text));
}

.ga-info-text.ga-rejected {
    color: var(--color-danger, var(--color-danger));
}

.ga-cost {
    font-weight: 600;
    white-space: nowrap;
    color: var(--color-primary, var(--color-primary));
}

.ga-btn-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.ga-btn {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
}

.ga-score {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
}

.ga-score-perfect {
    background: var(--color-success-bg, rgba(34, 197, 94, 0.1));
    color: var(--color-success, #22c55e);
}

.ga-score-ok {
    background: var(--color-warning-bg, rgba(var(--color-warning-rgb), 0.1));
    color: var(--color-warning, var(--color-warning));
}

@media (max-width: 480px) {
    .ga-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .ga-btn-row {
        gap: 0.375rem;
    }

    .ga-btn {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
    }
}

/* --- ./components/apps-library.css --- */
.apps-library-header {
    text-align: center;
    padding: 2rem 0 1rem;
}

.apps-library-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.apps-library-header p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.apps-filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding: 1rem 0 1.5rem;
}

.apps-filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.apps-filter-pill:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

.apps-filter-pill.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.apps-category-section {
    margin-bottom: 2rem;
}

.apps-category-heading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-border);
}

.apps-category-heading i {
    color: var(--color-primary);
    width: 1.25rem;
    text-align: center;
}

.apps-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.apps-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1.25rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    position: relative;
}

.apps-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    color: inherit;
    text-decoration: none;
}

.apps-card-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.5rem;
    background: var(--color-primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
    font-size: 0.9rem;
}

.apps-card-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.375rem;
    line-height: 1.3;
}

.apps-card-desc {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.45;
    flex-grow: 1;
    margin-bottom: 0.75rem;
}

.apps-card-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.apps-badge-free {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 1rem;
    background: rgba(var(--color-success-rgb), 0.1);
    color: var(--color-success);
}

.apps-badge-login {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.2rem 0.5rem;
    border-radius: 1rem;
    background: rgba(100, 116, 139, 0.1);
    color: var(--color-text-muted);
}

.apps-detail-header {
    padding: 1.5rem 0 1rem;
}

.apps-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-decoration: none;
    margin-bottom: 0.75rem;
}

.apps-detail-back:hover {
    color: var(--color-primary);
}

.apps-detail-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.apps-detail-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.apps-detail-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.apps-detail-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-primary);
}

.apps-widget-container {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 0;
    min-height: calc(100vh - 160px);
    margin-bottom: 2rem;
    position: relative;
}

@media (max-width: 991.98px) {
    .apps-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 575.98px) {
    .apps-card-grid {
        grid-template-columns: 1fr;
    }

    .apps-filter-pills {
        gap: 0.375rem;
    }

    .apps-filter-pill {
        font-size: 0.75rem;
        padding: 0.3rem 0.625rem;
    }

    .apps-widget-container {
        padding: 0.75rem;
    }
}

/* --- ./exploration/ai_mentor.css --- */
/* AI Mentor Styles - Using site theme variables */

/* Floating AI Mentor Button */
.ai-mentor-fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    z-index: var(--z-index-modal-backdrop);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.ai-mentor-fab:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    background: var(--primary-hover);
}

.ai-mentor-fab .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    font-size: 0.7rem;
}

/* Beta Badge on FAB */
.ai-beta-badge {
    position: absolute;
    top: -8px;
    right: -12px;
    background: #ffc107;
    color: #000;
    font-size: 0.55rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    letter-spacing: 0.5px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Prompt Bubble - Uses alert-warning pattern for consistency */
.ai-prompt-bubble {
    position: relative;
    background: rgba(255, 193, 7, 0.08);
    border-left: 4px solid var(--bs-warning, #ffc107);
    border-radius: 8px;
    padding: 15px 20px;
    margin: 15px 0;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-prompt-bubble .prompt-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    margin-right: 12px;
    font-size: 0.9rem;
}

.ai-prompt-bubble .prompt-content {
    flex: 1;
}

.ai-prompt-bubble .prompt-text {
    color: var(--bs-body-color);
    font-style: italic;
    margin-bottom: 10px;
}

.ai-prompt-bubble .prompt-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.ai-prompt-bubble .btn-discuss {
    background: var(--primary);
    border: none;
    color: white;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    transition: background 0.2s ease;
}

.ai-prompt-bubble .btn-discuss:hover {
    background: var(--primary-hover);
}

.ai-prompt-bubble .btn-dismiss {
    background: transparent;
    border: 1px solid var(--bs-border-color, #dee2e6);
    color: var(--bs-secondary-color, var(--color-secondary));
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.ai-prompt-bubble .close-bubble {
    position: absolute;
    top: 8px;
    right: 8px;
    background: none;
    border: none;
    color: var(--bs-secondary-color, var(--color-secondary));
    cursor: pointer;
    padding: 4px;
}

/* Chat Modal */
.ai-chat-modal .modal-dialog {
    max-width: 500px;
    margin: 0;
    margin-left: auto;
    height: 100vh;
}

.ai-chat-modal .modal-content {
    height: 100%;
    border-radius: 0;
    border: none;
}

.ai-chat-modal .modal-header {
    background: var(--primary);
    color: white;
    border-radius: 0;
    padding: 1rem 1.5rem;
}

.ai-chat-modal .modal-header .btn-close {
    filter: brightness(0) invert(1);
}

/* Token Badge */
.ai-token-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.ai-token-badge i {
    font-size: 0.8rem;
    opacity: 0.9;
}

.ai-token-badge.low {
    background: rgba(255, 193, 7, 0.3);
}

.ai-token-badge.critical {
    background: rgba(220, 53, 69, 0.4);
    animation: pulse-warning 2s infinite;
}

@keyframes pulse-warning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.ai-chat-modal .modal-body {
    display: flex;
    flex-direction: column;
    padding: 0;
    height: calc(100vh - 140px);
}

/* Chat Messages Container */
.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: var(--bs-light, #f8f9fa);
}

/* Chat Disclaimer */
.ai-chat-disclaimer {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 15px;
    font-size: 0.85rem;
    color: #664d03;
}

.ai-chat-disclaimer i {
    color: #ffc107;
}

.ai-chat-cost-note {
    display: flex;
    align-items: flex-start;
    gap: 2px;
    margin-bottom: 15px;
    padding: 8px 12px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    background: var(--color-bg-muted);
    border-radius: 8px;
}

.ai-chat-cost-note i {
    color: var(--color-primary);
    margin-top: 2px;
}

/* Chat Message */
.ai-chat-message {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-chat-message.student {
    flex-direction: row-reverse;
}

.ai-chat-message .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.ai-chat-message.mentor .avatar {
    background: var(--primary);
    color: white;
}

.ai-chat-message.student .avatar {
    background: var(--bs-secondary-bg, var(--bs-gray-light));
    color: var(--bs-body-color);
}

.ai-chat-message .message-wrapper {
    max-width: 80%;
}

.ai-chat-message .message-content {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.ai-chat-message.mentor .message-content {
    background: white;
    border: 1px solid var(--bs-border-color, #dee2e6);
}

.ai-chat-message.student .message-content {
    background: var(--primary);
    color: white;
}

.ai-chat-message .message-time {
    font-size: 0.75rem;
    color: var(--bs-secondary-color, var(--color-secondary));
    margin-top: 4px;
}

.ai-chat-message.student .message-time {
    text-align: right;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 12px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--bs-secondary-color, var(--color-secondary));
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        background: var(--bs-secondary-color, var(--color-secondary));
    }
    30% {
        transform: translateY(-8px);
        background: var(--primary);
    }
}

/* Chat Input */
.ai-chat-input {
    padding: 16px 20px;
    background: linear-gradient(to top, #f8f9fa, white);
    border-top: 1px solid var(--bs-border-color, #dee2e6);
}

.ai-chat-input form {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    background: white;
    border-radius: 24px;
    padding: 8px 8px 8px 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.2s ease;
}

.ai-chat-input form:focus-within {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12), 0 0 0 2px var(--primary);
}

.ai-chat-input textarea {
    flex: 1;
    border: none;
    padding: 10px 0;
    resize: none;
    font-size: 1rem;
    max-height: 100px;
    background: transparent;
    line-height: 1.4;
}

.ai-chat-input textarea:focus {
    outline: none;
    box-shadow: none;
}

.ai-chat-input textarea::placeholder {
    color: #999;
}

.ai-chat-input button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ai-chat-input button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.ai-chat-input button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* Highlight Badge for Teacher View */
.highlight-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: #fff3cd;
    color: #664d03;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-top: 4px;
}

.highlight-badge i {
    color: #ffc107;
}

/* Out of Credits Card */
.ai-out-of-credits {
    background: linear-gradient(135deg, #fff9e6 0%, #fff3cd 100%);
    border: 1px solid #ffc107;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    margin: 20px 0;
    animation: messageIn 0.3s ease;
}

.ai-out-of-credits .credits-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffc107, #ff9800);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.ai-out-of-credits h5 {
    color: #856404;
    margin-bottom: 8px;
    font-weight: 600;
}

.ai-out-of-credits > p {
    color: #666;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.ai-out-of-credits .credits-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.ai-out-of-credits .option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--bs-gray-light);
    text-align: left;
}

.ai-out-of-credits .option i {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.ai-out-of-credits button.option {
    background: white;
    border: 1px solid var(--bs-gray-light);
    width: 100%;
    text-align: left;
    font: inherit;
    color: inherit;
    cursor: pointer;
}

.ai-out-of-credits button.option:hover {
    background: #f8f9fa;
}

.ai-out-of-credits .option.coming-soon {
    opacity: 0.6;
}

.ai-out-of-credits .option.coming-soon i {
    background: var(--color-secondary);
}

.ai-out-of-credits .option em {
    color: #999;
    font-size: 0.85rem;
}

.ai-out-of-credits .credits-tip {
    background: white;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #555;
    text-align: left;
    margin: 0;
}

.ai-out-of-credits .credits-tip i {
    color: #ffc107;
    margin-right: 8px;
}

/* Login Prompt Card */
.ai-login-prompt {
    background: linear-gradient(135deg, #f8f9fa 0%, var(--bs-gray-light) 100%);
    border: 1px solid var(--bs-border-color, #dee2e6);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    margin: 20px 0;
    animation: messageIn 0.3s ease;
}

.ai-login-prompt .login-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
}

.ai-login-prompt h5 {
    color: var(--bs-body-color);
    margin-bottom: 8px;
    font-weight: 600;
}

.ai-login-prompt > p {
    color: #666;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.ai-login-prompt .login-benefits {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
    margin-bottom: 20px;
    padding: 0 10px;
}

.ai-login-prompt .benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--bs-body-color);
}

.ai-login-prompt .benefit i {
    flex-shrink: 0;
}

.ai-login-prompt .login-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.ai-login-prompt .login-buttons .btn {
    min-width: 140px;
}

/* Mobile Responsive */
@media (max-width: 576px) {
    .ai-mentor-fab {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }

    .ai-chat-modal .modal-dialog {
        max-width: 100%;
    }

    .ai-prompt-bubble {
        padding: 12px 15px;
    }

    .ai-prompt-bubble .prompt-actions {
        flex-direction: column;
    }

    .ai-prompt-bubble .btn-discuss,
    .ai-prompt-bubble .btn-dismiss {
        width: 100%;
        text-align: center;
    }
}

/* --- ./exploration/quick_create_idea.css --- */
/* Quick Create Idea Page Styles */

.quick-create-container {
    max-width: 1400px;
    margin: 0 auto;
}

.form-preview-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2rem;
}

@media (max-width: 1200px) {
    .form-preview-layout {
        grid-template-columns: 1fr;
    }
    .preview-panel {
        position: relative;
        top: 0;
        margin-top: 2rem;
    }
}

.drop-zone {
    border: 3px dashed #dee2e6;
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition-slow);
    cursor: pointer;
    background: #f8f9fa;
}

.drop-zone.dragover {
    border-color: var(--jmaths-medium-blue);
    background: #e7f3ff;
    transform: scale(1.02);
}

.drop-zone.has-image {
    padding: 0;
    border-style: solid;
    border-color: #28a745;
}

.images-preview-container {
    width: 100%;
}

.image-preview-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 8px;
}

.image-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-image {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    transition: var(--transition-base);
}

.remove-image:hover {
    background: #dc3545;
    transform: scale(1.1);
}

.set-cover-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(255, 193, 7, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    transition: var(--transition-base);
}

.set-cover-btn:hover {
    background: #ffc107;
    transform: scale(1.1);
}

.cover-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--gradient-primary);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.image-preview-item.is-cover {
    border: 3px solid var(--primary);
}

.smart-textarea {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    transition: height 0.2s ease;
}

.list-counter {
    font-size: 0.875rem;
    color: var(--color-secondary);
    margin-top: 0.25rem;
}

.topic-custom-input {
    display: none;
    margin-top: 0.5rem;
}

.quick-tip {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--jmaths-medium-blue);
    box-shadow: 0 0 0 0.2rem rgba(74, 144, 226, 0.25);
}

.btn-create {
    background: var(--gradient-primary);
    border: none;
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition-slow);
}

.btn-create:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.minimal-card {
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    background: white;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--jmaths-medium-blue);
}

.tag-item {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    margin: 0.25rem;
    font-size: 0.875rem;
    position: relative;
}

.tag-remove {
    margin-left: 0.5rem;
    cursor: pointer;
    opacity: 0.8;
}

.tag-remove:hover {
    opacity: 1;
}

.autocomplete-dropdown {
    position: absolute;
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    max-height: 250px;
    overflow-y: auto;
    z-index: var(--z-index-dropdown);
    width: 100%;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-bottom: 1px solid #f0f0f0;
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover, .autocomplete-item.active {
    background: #f8f9fa;
}

.autocomplete-item .tag-name {
    font-weight: 500;
    color: #333;
}

.autocomplete-item .tag-meta {
    font-size: 0.75rem;
    color: var(--color-secondary);
    margin-top: 0.25rem;
}

.preview-panel {
    position: sticky;
    top: 20px;
    height: fit-content;
}

.preview-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.preview-header {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.preview-content {
    padding: 1rem;
}

.preview-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 0.875rem;
}

.preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin: 0.75rem 0 0.5rem 0;
}

.preview-description {
    font-size: 0.875rem;
    color: #666;
    line-height: 1.5;
}

.preview-tag {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    margin: 0.25rem;
    font-size: 0.75rem;
}

.preview-empty {
    color: #999;
    font-style: italic;
    font-size: 0.875rem;
}

/* --- ./poster-base.css --- */
/* ============================================
   POSTER BASE CSS
   Shared styles for all poster types:
   - Mathematician Timeline
   - Writers Posters
   - Scientists (future)
   - Artists (future)
   ============================================ */

/* CSS Variables - Override in specific templates as needed */
:root {
    /* Page dimensions (A4) */
    --page-width: 210mm;
    --page-height: 297mm;
    --page-padding: 15mm;

    /* Colors - override per poster type */
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #1a1a1a;
    --light-bg: #ffffff;
    --border-color: #2c3e50;

    /* Typography */
    --name-size: 80px;
    --subtitle-size: 56px;
    --bio-size: 30pt;
    --line-height: 1.4;

    /* Image */
    --image-size: 110mm;

    /* Gallery mode */
    --gallery-scale: 0.35;
    --gallery-aspect-ratio: 141.4%;
    --gallery-grid-gap: 20px;
    --gallery-min-card-width: 200px;
    --page-gap-fullview: 30px;
}

/* Print settings */
@page {
    size: A4 portrait;
    margin: 0;
}

* {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
    color-adjust: exact !important;
}

/* ============================================
   POSTER PAGE STYLES
   ============================================ */

.poster-container {
    max-width: 1400px;
    margin: 0 auto;
}

body.gallery-mode .poster-wrapper {
    padding: 20px;
}

body.gallery-mode .poster-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--gallery-min-card-width), 1fr));
    gap: var(--gallery-grid-gap);
    max-width: none;
    padding: 0;
}

/* Individual poster page */
.poster-page {
    width: var(--page-width);
    height: var(--page-height);
    background: white;
    margin: 0 auto var(--page-gap-fullview);
    page-break-after: always;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Gallery mode poster */
body.gallery-mode .poster-page {
    width: 100%;
    height: 0;
    padding-bottom: var(--gallery-aspect-ratio);
    margin: 0;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    border: none;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    background: white;
}

body.gallery-mode .poster-page .poster-content {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%) scale(var(--gallery-scale));
    transform-origin: top center;
    width: var(--page-width);
    height: var(--page-height);
}

body.gallery-mode .poster-page:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(69, 123, 157, 0.3);
    z-index: 10;
}

.poster-page:last-child {
    page-break-after: auto;
}

/* ============================================
   POSTER CONTENT STRUCTURE
   ============================================ */

.poster-content {
    position: relative;
    z-index: 5;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

/* Header banner */
.poster-header {
    width: 100%;
    background: var(--primary-color);
    padding: 5mm 15mm 15mm;
    margin-bottom: 0;
    text-align: center;
    align-self: stretch;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
    overflow: hidden;
}

.poster-header::before {
    content: '';
    position: absolute;
    pointer-events: none;
}

body.gallery-mode .poster-header {
    padding: 4mm 10mm 15mm;
    margin-bottom: 0;
}

/* Main name/title */
.poster-name {
    font-size: var(--name-size);
    font-weight: 900;
    color: white;
    margin: 0;
    letter-spacing: 2px;
    text-transform: uppercase;
    line-height: 1.1;
    font-family: 'Roboto', sans-serif;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

/* Content body */
.poster-body {
    padding: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    align-self: stretch;
    flex: 1;
    overflow: visible;
}

/* Circular image container */
.poster-image {
    width: var(--image-size);
    height: var(--image-size);
    overflow: hidden;
    position: relative;
    margin: 0 auto 0;
    background: var(--light-bg);
    flex-shrink: 0;
    border-radius: 50%;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    border: 5px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.poster-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

body.gallery-mode .poster-image {
    margin-bottom: 0;
}

/* Text content area */
.poster-text {
    width: 100%;
    display: flex;
    flex-direction: column;
    text-align: center;
    flex: 1;
    padding: 0 10mm;
    position: relative;
}

/* Subtitle (year, nationality, etc.) */
.poster-subtitle {
    font-size: var(--subtitle-size);
    color: var(--accent-color);
    font-weight: 700;
    font-family: 'Roboto', sans-serif;
    text-align: center;
    margin: 1mm 0 2mm 0;
}

/* Biography/description area */
.poster-bio {
    font-size: var(--bio-size);
    line-height: var(--line-height);
    color: var(--text-color);
    font-weight: 500;
    text-align: justify;
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    border: none;
    margin: 5mm -10mm 0 -10mm;
    position: relative;
    font-family: 'Roboto', sans-serif;
    overflow: hidden;
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.poster-bio::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background: var(--accent-color);
    z-index: -1;
}

.poster-bio p {
    padding: 5mm 3mm;
    margin: 0;
}

body.gallery-mode .poster-bio {
    padding: 3mm 3mm 5mm 3mm;
    font-size: calc(var(--bio-size) * 0.9);
    line-height: 1.3;
}

/* Footer/attribution */
.poster-footer {
    position: absolute;
    bottom: 0;
    right: 0;
    display: flex;
    align-items: flex-end;
    gap: 2mm;
    opacity: 0.7;
    z-index: 60;
    font-size: 7px;
    color: var(--text-color);
    font-family: 'Roboto', sans-serif;
}

.poster-logo {
    max-height: 5mm;
    height: 5mm;
    width: auto;
}

/* ============================================
   CONTROLS - TOP RIGHT BUTTONS
   ============================================ */

.poster-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: var(--z-index-dropdown);
}

.poster-btn {
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.poster-btn:hover {
    background: #1a252f;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.poster-btn-gallery {
    background: #3498db;
}

.poster-btn-gallery:hover {
    background: #2980b9;
}

body.gallery-mode .poster-btn-gallery {
    background: #27ae60;
}

body.gallery-mode .poster-btn-gallery:hover {
    background: #229954;
}

.poster-btn-download {
    background: #16a085;
}

.poster-btn-download:hover {
    background: #138d75;
}

/* ============================================
   PALETTE SIDEBAR
   ============================================ */

.palette-sidebar-toggle {
    position: fixed;
    left: 0;
    top: 80px;
    z-index: var(--z-index-fixed);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 8px 8px 0;
    padding: 10px 12px;
    cursor: pointer;
    box-shadow: 2px 2px 12px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.palette-sidebar-toggle:hover {
    background: #457b9d;
    transform: translateX(2px);
}

.palette-sidebar-toggle::after {
    content: 'Menu';
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.palette-sidebar {
    position: fixed;
    left: -320px;
    top: 0;
    width: 320px;
    height: 100vh;
    background: white;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.1);
    z-index: var(--z-index-modal-backdrop);
    transition: left 0.3s ease;
    display: flex;
    flex-direction: column;
}

.palette-sidebar.active {
    left: 0;
}

.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1035;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.sidebar-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.palette-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem;
    background: var(--primary-color);
    color: white;
    border-bottom: 3px solid #457b9d;
}

.palette-sidebar-header h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.palette-sidebar-close {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.2s;
}

.palette-sidebar-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.palette-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
}

.palette-sidebar-footer {
    padding: 1.25rem;
    background: #f8f9fa;
    border-top: 3px solid var(--bs-gray-light);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.palette-sidebar-footer .poster-btn {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* ============================================
   PALETTE GRID
   ============================================ */

.palette-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.palette-option {
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    border: 2px solid transparent;
    background: #f8f9fa;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    flex-shrink: 0;
    white-space: nowrap;
}

.palette-option:hover {
    transform: translateY(-2px);
    background: var(--bs-gray-light);
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.palette-option.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(69, 123, 157, 0.3);
}

.palette-preview {
    display: flex;
    gap: 2px;
}

.palette-color {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.palette-option.active .palette-color {
    border-color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   DOWNLOAD BUTTON ON POSTER
   ============================================ */

.download-single-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    color: #27ae60;
    border: 1px solid rgba(39, 174, 96, 0.3);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    opacity: 0.7;
}

.download-single-btn:hover {
    opacity: 1;
    background: #27ae60;
    color: white;
    box-shadow: 0 2px 8px rgba(39, 174, 96, 0.3);
}

body.gallery-mode .download-single-btn {
    display: flex !important;
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 150;
    width: 28px;
    height: 28px;
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.2s;
}

body.gallery-mode .poster-page:hover .download-single-btn {
    opacity: 0.9;
}

/* ============================================
   EDIT MODE CONTROLS
   ============================================ */

.edit-controls {
    display: none;
    position: absolute;
    bottom: 2mm;
    left: 2mm;
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px;
    border-radius: 8px;
    gap: 5px;
}

.title-edit-controls {
    display: none;
    position: absolute;
    top: 2mm;
    left: 2mm;
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px;
    border-radius: 8px;
    gap: 5px;
}

.image-edit-controls {
    display: none;
    position: absolute;
    top: 2mm;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px;
    border-radius: 8px;
    gap: 5px;
}

body.edit-mode .edit-controls,
body.edit-mode .title-edit-controls,
body.edit-mode .image-edit-controls {
    display: flex;
}

body.gallery-mode .edit-controls,
body.gallery-mode .title-edit-controls,
body.gallery-mode .image-edit-controls {
    display: none !important;
}

body.edit-mode .download-single-btn {
    display: none !important;
}

.edit-controls button,
.title-edit-controls button,
.image-edit-controls button {
    background: white;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.edit-controls button:hover,
.title-edit-controls button:hover,
.image-edit-controls button:hover {
    background: #3498db;
    color: white;
    transform: scale(1.1);
}

.edit-controls .size-display,
.title-edit-controls .size-display,
.image-edit-controls .size-display {
    color: white;
    font-size: 12px;
    padding: 0 8px;
    display: flex;
    align-items: center;
}

/* ============================================
   LOADING STATE
   ============================================ */

.poster-loading {
    text-align: center;
    padding: 50px;
    font-size: 24px;
    color: var(--text-color);
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    @page {
        margin: 0;
        size: A4 portrait;
    }

    .no-print,
    .poster-controls,
    .palette-sidebar,
    .palette-sidebar-toggle,
    .sidebar-backdrop,
    #messageContainer,
    .alert,
    .toast,
    .poster-loading,
    footer,
    nav,
    .jmaths-nav,
    header,
    .download-single-btn,
    .edit-controls,
    .title-edit-controls,
    .image-edit-controls {
        display: none !important;
        visibility: hidden !important;
    }

    .poster-page.print-hidden {
        display: none !important;
        height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        page-break-before: avoid !important;
        page-break-after: avoid !important;
    }

    .poster-header::before {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
        color-adjust: exact !important;
    }

    html,
    body,
    body.gallery-mode {
        background: white !important;
        margin: 0 !important;
        padding: 0 !important;
        width: 100% !important;
        height: auto !important;
    }

    .container,
    .page-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .poster-wrapper {
        padding: 0 !important;
        margin: 0 !important;
        background: white !important;
        width: 100% !important;
    }

    .poster-container {
        display: block !important;
        max-width: 100% !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        grid-template-columns: none !important;
    }

    .poster-page {
        margin: 0 !important;
        padding: 0 !important;
        box-shadow: none !important;
        border: none !important;
        width: var(--page-width) !important;
        height: var(--page-height) !important;
        max-width: var(--page-width) !important;
        max-height: var(--page-height) !important;
        page-break-inside: avoid !important;
        position: relative !important;
        display: block !important;
    }

    .poster-page:not(.print-hidden):not(:last-child) {
        page-break-after: always !important;
    }

    .poster-page:last-child,
    .poster-page.print-hidden {
        page-break-after: avoid !important;
    }

    .poster-page .poster-content {
        position: relative !important;
        transform: none !important;
        left: 0 !important;
        top: 0 !important;
        width: 100% !important;
        height: 100% !important;
    }

    .poster-image {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }

    .poster-image img {
        object-position: center !important;
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .palette-sidebar {
        width: 100%;
        left: -100%;
    }

    .palette-sidebar.active {
        left: 0;
    }

    .palette-sidebar-toggle::after {
        content: '';
    }

    .palette-sidebar-toggle {
        padding: 10px;
    }

    .poster-controls {
        top: 70px;
        right: 10px;
    }

    .poster-btn {
        min-width: auto;
        font-size: 0.85rem;
        padding: 10px 15px;
    }
}

/* --- ./pages/home.css --- */
/**
 * Home / landing + About — minimalist.
 * Quiet, personal "a teacher sharing his resources" design.
 * Uses theme tokens so it adapts to light/dark.
 */

.lp {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ---- Hero ---- */
.lp-hero {
    text-align: center;
    padding: 5rem 0 3.5rem;
}

.lp-logo {
    height: 52px;
    width: auto;
    margin-bottom: 2.25rem;
}

.lp-title {
    font-size: clamp(1.8rem, 4.5vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    max-width: 18ch;
    margin: 0 auto 1rem;
    color: var(--text);
}

.lp-sub {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 34rem;
    margin: 0 auto 2rem;
}

.lp-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.lp-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    color: #fff;
    padding: 0.7rem 1.4rem;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.15s ease;
}

.lp-btn:hover {
    background: var(--primary-hover);
    color: #fff;
}

.lp-coffee {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 1.5px solid var(--primary);
    color: var(--primary-hover);
    padding: 0.65rem 1.25rem;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.15s ease, color 0.15s ease;
}

.lp-coffee:hover {
    background: var(--primary);
    color: #fff;
}

.lp-note {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ---- What's inside ---- */
.lp-inside {
    border-top: 1px solid var(--border);
    padding: 3rem 0 4rem;
}

.lp-inside-head {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 1.25rem;
    text-align: center;
}

.lp-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 3rem;
    max-width: 720px;
    margin: 0 auto;
}

.lp-item {
    display: block;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: opacity 0.15s ease;
}

.lp-item:hover { opacity: 0.7; }

.lp-item-name {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.2rem;
}

.lp-item-desc {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ---- Footer ---- */
.lp-foot {
    text-align: center;
    padding: 2rem 0 3rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.lp-foot a {
    color: var(--text-muted);
    text-decoration: none;
}

.lp-foot a:hover { color: var(--primary-hover); }

.lp-foot-sep { margin: 0 0.6rem; opacity: 0.5; }

/* ---- About ---- */
.about-head {
    text-align: center;
    padding: 3.5rem 0 1.5rem;
}

.about-photo {
    display: block;
    width: 100%;
    max-width: 480px;
    height: auto;
    border-radius: 16px;
    margin: 0 auto 1.75rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.about-photo-empty {
    aspect-ratio: 1184 / 864;
    background: var(--border);
}

.about-name {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.about-role {
    color: var(--primary-hover);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-body {
    max-width: 40rem;
    margin: 0 auto;
}

.about-body p { color: var(--text); }

.about-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.about-links a {
    color: var(--primary-hover);
    text-decoration: none;
    font-weight: 500;
}

.about-links a:hover { text-decoration: underline; }

.about-support {
    border-top: 1px solid var(--border);
    max-width: 40rem;
    margin: 1rem auto 0;
    padding: 2rem 0;
}

.about-support p {
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.about-disclaimer {
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    max-width: 40rem;
    margin: 0 auto;
    padding: 1.5rem 0 3rem;
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
    .lp-list { grid-template-columns: 1fr; gap: 0; }
    .about-links { gap: 1rem; }
}

/* --- ./pages/student.css --- */
/**
 * Student View Styles
 * ===================
 * Styles for the student-facing interface
 */

/* Student-specific optimizations */
.admin-controls {
    display: none !important;
}

.student-view .container {
    max-width: 1200px;
}

/* Student-friendly card styling */
.content-card {
    border: none;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    border-radius: 12px;
    overflow: hidden;
}

.content-card .card-header {
    background: linear-gradient(135deg, #f8f9fa, var(--bs-gray-light));
    border-bottom: 2px solid var(--jmaths-light-blue);
    padding: 1.25rem;
}

/* Student navigation styling */
.student-nav {
    background: rgba(168, 218, 220, 0.1);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

/* Learning content focus */
.learning-content {
    font-size: 1.05rem;
    line-height: 1.6;
}

/* Progress indicators */
.progress-indicator {
    height: 8px;
    border-radius: 4px;
    background: var(--jmaths-light-blue);
}

.progress-indicator .progress-bar {
    background: var(--jmaths-medium-blue);
    border-radius: 4px;
}

/* --- ./pages/dashboard.css --- */
/**
 * Dashboard Layout Styles
 * =======================
 * Shared styles for dashboard pages
 */

/* Dashboard Layout */
.dashboard-layout {
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard-header {
    margin-bottom: 30px;
}

.dashboard-title {
    color: var(--jmaths-dark-blue);
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 10px;
}

.dashboard-subtitle {
    color: var(--color-secondary);
    font-size: 1.1rem;
    margin-bottom: 0;
}

.dashboard-content {
    min-height: 60vh;
}

.dashboard-stats {
    margin-bottom: 30px;
}

.dashboard-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 2fr 1fr;
    }
}

@media (min-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.dashboard-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 0;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.dashboard-card-header {
    background: linear-gradient(135deg, var(--jmaths-medium-blue), var(--jmaths-dark-blue));
    color: white;
    padding: 20px;
    border-bottom: none;
}

.dashboard-card-body {
    padding: 20px;
}

.dashboard-card-footer {
    background: #f8f9fa;
    padding: 15px 20px;
    border-top: 1px solid var(--bs-gray-light);
}

/* Role indicator */
.role-indicator {
    display: inline-flex;
    align-items: center;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.role-indicator i {
    margin-right: 5px;
}

/* Quick actions */
.quick-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .dashboard-layout {
        padding: 20px;
    }

    .dashboard-title {
        font-size: 1.5rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .dashboard-card-header,
    .dashboard-card-body,
    .dashboard-card-footer {
        padding: 15px;
    }

    .quick-actions {
        flex-direction: column;
    }
}

/* --- ./pages/admin-portal.css --- */
/**
 * Admin Portal Styles
 * ===================
 * Dark theme styles for the admin portal
 */

:root {
    /* Admin portal uses dark theme based on main brand colors */
    --admin-primary: var(--jmaths-dark-blue, var(--jmaths-gray-900));
    --admin-secondary: var(--jmaths-medium-blue, var(--color-primary));
    --admin-accent: var(--jmaths-light-blue, var(--color-info));
    --admin-dark: var(--jmaths-gray-900);
    --admin-light: var(--color-bg-muted);
    --admin-border: var(--jmaths-medium-blue, var(--color-primary));
}

.admin-portal-body {
    background: linear-gradient(135deg, var(--jmaths-gray-900) 0%, var(--color-text) 100%);
    min-height: 100vh;
    color: #ffffff;
}

.admin-nav {
    background: var(--admin-dark);
    border-bottom: 3px solid var(--admin-accent);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(var(--color-primary-rgb), 0.3);
}

.admin-nav .navbar-brand {
    color: #ffffff !important;
    font-weight: bold;
    font-size: 1.3rem;
}

.admin-nav .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    transition: all 0.2s;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.admin-nav .nav-link:hover {
    background: rgba(var(--color-primary-rgb), 0.3);
    color: #ffffff !important;
}

.admin-nav .dropdown-menu {
    background: var(--admin-dark);
    border: 1px solid var(--admin-border);
}

.admin-nav .dropdown-item {
    color: rgba(255, 255, 255, 0.85);
}

.admin-nav .dropdown-item:hover {
    background: var(--admin-accent);
    color: #ffffff;
}

.admin-nav .dropdown-header {
    color: var(--admin-accent);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.admin-badge {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: bold;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.return-to-jmaths {
    background: linear-gradient(135deg, #00b4d8, #0077b6);
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 6px rgba(0, 180, 216, 0.3);
}

.return-to-jmaths:hover {
    background: linear-gradient(135deg, #0077b6, #023e8a);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 180, 216, 0.4);
    color: white;
}

.admin-content {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    padding: 2rem;
    margin: 2rem 0;
    color: #333;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.admin-portal-body .admin-card {
    background: white;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    transition: all 0.3s;
}

.admin-portal-body .admin-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(var(--color-primary-rgb), 0.2);
}

.stat-card-hover {
    cursor: pointer;
}

.stat-card-hover:hover {
    border-color: var(--admin-accent) !important;
}

.stat-card-hover h3 {
    transition: color 0.2s;
}

.stat-card-hover:hover h3 {
    color: var(--admin-accent);
}

.admin-card-header {
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-secondary));
    color: white;
    border-bottom: none;
    font-weight: 600;
}

.badge.bg-admin {
    background: var(--admin-accent) !important;
}

.admin-portal-body h1,
.admin-portal-body h2,
.admin-portal-body h3,
.admin-portal-body h4,
.admin-portal-body h5,
.admin-portal-body h6 {
    color: var(--admin-primary);
}

.admin-portal-body .btn-primary {
    background: var(--admin-primary);
    border-color: var(--admin-primary);
}

.admin-portal-body .btn-primary:hover {
    background: var(--admin-secondary);
    border-color: var(--admin-secondary);
}

/* --- ./pages/monitoring.css --- */
/**
 * Monitoring Dashboard Styles
 * ===========================
 * Styles for the system monitoring page
 */

.monitoring-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border-left: 4px solid transparent;
}

.monitoring-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.monitoring-card.system-health { border-left-color: #28a745; }
.monitoring-card.memory-health { border-left-color: #17a2b8; }
.monitoring-card.db-health { border-left-color: #ffc107; }
.monitoring-card.cache-health { border-left-color: var(--color-info-hover); }
.monitoring-card.user-activity { border-left-color: var(--bs-orange); }
.monitoring-card.error-monitoring { border-left-color: #dc3545; }

.metric-chart {
    height: 200px;
    background: linear-gradient(135deg, #f8f9fa 0%, var(--bs-gray-light) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--color-secondary);
}

.alert-item {
    border-left: 4px solid #dee2e6;
    transition: all 0.2s ease;
}

.alert-item.alert-success { border-left-color: #28a745; }
.alert-item.alert-warning { border-left-color: #ffc107; }
.alert-item.alert-danger { border-left-color: #dc3545; }
.alert-item.alert-info { border-left-color: #17a2b8; }

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.status-healthy { background-color: #28a745; }
.status-warning { background-color: #ffc107; }
.status-error { background-color: #dc3545; }
.status-unknown { background-color: var(--color-secondary); }

.auto-refresh {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: var(--z-index-dropdown);
}

/* --- ./mobile_drawer.css --- */
/* ==================================================
   MOBILE DRAWER NAVIGATION - HAMBURGER MENU
   Redesigned for cleaner, modern mobile experience
   ================================================== */

/* Hamburger Button - 44px touch target */
.mobile-menu-toggle,
.mobile-user-toggle {
    background: transparent;
    border: none;
    padding: 0.625rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--jmaths-dark-blue);
    font-size: 1.25rem;
    transition: var(--transition-base);
    min-width: 44px;
    min-height: 44px;
    border-radius: 8px;
}

.mobile-menu-toggle:hover,
.mobile-user-toggle:hover {
    background: rgba(69, 123, 157, 0.1);
    color: var(--jmaths-medium-blue);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

.mobile-user-toggle {
    font-size: 1.5rem;
}

/* Hamburger Icon Animation */
.hamburger-icon {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 22px;
}

.hamburger-icon span {
    display: block;
    height: 2.5px;
    background: var(--jmaths-dark-blue);
    border-radius: 2px;
    transition: var(--transition-slow);
}

.mobile-menu-toggle.active .hamburger-icon span:nth-child(1) {
    transform: rotate(45deg) translateY(7.5px);
}

.mobile-menu-toggle.active .hamburger-icon span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-toggle.active .hamburger-icon span:nth-child(3) {
    transform: rotate(-45deg) translateY(-7.5px);
}

/* Mobile Drawer Container */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    pointer-events: none;
}

.mobile-drawer.active {
    pointer-events: all;
}

/* Drawer Overlay - Darker for better contrast */
.mobile-drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.mobile-drawer.active .mobile-drawer-overlay {
    opacity: 1;
}

/* Drawer Content - Wider, cleaner design */
.mobile-drawer-content {
    position: absolute;
    top: 0;
    left: 0;
    width: min(300px, 85vw);
    height: 100%;
    background: #fafbfc;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-100%);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.mobile-drawer.active .mobile-drawer-content {
    transform: translateX(0);
}

/* Right Side Drawer (for user menu) */
.mobile-drawer-right .mobile-drawer-content {
    left: auto;
    right: 0;
    transform: translateX(100%);
}

.mobile-drawer-right.active .mobile-drawer-content {
    transform: translateX(0);
}

/* Drawer Header - Cleaner gradient */
.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, #1d3557 0%, #457b9d 100%);
    color: white;
    flex-shrink: 0;
    min-height: 60px;
}

.mobile-drawer-header h5 {
    margin: 0;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.3px;
}

.mobile-drawer-close {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.mobile-drawer-close:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
}

.mobile-drawer-close:active {
    transform: scale(0.95);
}

/* Drawer Body - Better padding and scroll */
.mobile-drawer-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0;
    -webkit-overflow-scrolling: touch;
}

/* Scroll shadow indicator */
.mobile-drawer-body::after {
    content: '';
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to top, rgba(250, 251, 252, 1), transparent);
    pointer-events: none;
}

/* Mobile Navigation Links - Larger touch targets */
.mobile-nav {
    display: flex;
    flex-direction: column;
    padding: 0.5rem 0;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.875rem 1.25rem;
    min-height: 52px;
    color: #2d3748;
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    border-right: none;
    border-top: none;
    border-bottom: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-size: 0.95rem;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
    background: white;
    border-left-color: var(--jmaths-medium-blue);
    color: var(--jmaths-medium-blue);
    text-decoration: none;
    outline: none;
}

.mobile-nav-link:active {
    background: #e8f0f5;
}

.mobile-nav-link i {
    width: 22px;
    font-size: 1rem;
    text-align: center;
    flex-shrink: 0;
    opacity: 0.85;
}

.mobile-nav-link span {
    font-weight: 500;
    flex: 1;
}

.mobile-nav-link .badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    margin-left: auto;
}

.mobile-nav-link.text-danger {
    color: #dc3545;
}

.mobile-nav-link.text-danger:hover {
    background: #fff5f5;
    border-left-color: #dc3545;
    color: #dc3545;
}

/* Nested nav links (in accordions) */
.mobile-nav-link.ps-4 {
    padding-left: 2.5rem;
    background: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    min-height: 48px;
}

.mobile-nav-link.ps-5 {
    padding-left: 3.25rem;
    background: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    min-height: 46px;
}

/* Accordion Button Styles - Cleaner look */
.mobile-accordion-btn {
    cursor: pointer;
    font-weight: 600;
    background: transparent !important;
    position: relative;
}

.mobile-accordion-btn::after {
    content: '';
    position: absolute;
    left: 1.25rem;
    right: 1.25rem;
    bottom: 0;
    height: 1px;
    background: transparent;
    transition: background 0.2s ease;
}

.mobile-accordion-btn .fa-chevron-down {
    transition: transform 0.25s ease;
    font-size: 0.75rem;
    opacity: 0.6;
}

.mobile-accordion-btn[aria-expanded="true"] .fa-chevron-down,
.mobile-accordion-btn.expanded .fa-chevron-down {
    transform: rotate(180deg);
    opacity: 1;
}

.mobile-accordion-btn:not(.collapsed),
.mobile-accordion-btn.expanded {
    background: white !important;
    color: var(--jmaths-medium-blue);
    border-left-color: var(--jmaths-medium-blue);
}

/* Collapse content - smooth animation */
.mobile-nav .collapse {
    transition: all 0.25s ease;
}

.mobile-nav .collapse.show,
.mobile-nav .collapsing {
    background: rgba(69, 123, 157, 0.03);
    border-bottom: 1px solid rgba(69, 123, 157, 0.1);
}

/* Mobile nav section headers - Better visibility */
.mobile-nav-section-header {
    display: flex;
    align-items: center;
    padding: 1rem 1.25rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    color: var(--color-secondary);
    margin-top: 0.25rem;
}

.mobile-nav-section-header::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, #dee2e6, transparent);
    margin-left: 0.75rem;
}

/* User Info Card - Redesigned */
.mobile-user-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 1.25rem 1.25rem;
    background: white;
    border-bottom: 1px solid var(--bs-gray-light);
    margin: 0;
}

.mobile-user-info i.fa-user-circle {
    font-size: 3rem;
    color: var(--jmaths-medium-blue);
    margin-bottom: 0.75rem;
}

.mobile-user-info h6 {
    margin: 0 0 0.25rem 0;
    font-weight: 600;
    font-size: 1rem;
    color: #1d3557;
}

.mobile-user-info p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-user-info .badge {
    font-size: 0.65rem;
}

/* Nav divider sections */
.mobile-nav .mt-3.pt-3 {
    margin-top: 0.75rem !important;
    padding-top: 0.75rem !important;
    border-top: 1px solid var(--bs-gray-light) !important;
}

/* Logout button - More prominent */
.mobile-nav-link.text-danger {
    margin-top: 0.5rem;
    border-radius: 8px;
    margin-left: 0.75rem;
    margin-right: 0.75rem;
    width: calc(100% - 1.5rem);
    justify-content: center;
    background: #fff5f5;
    border: 1px solid #ffebee;
}

.mobile-nav-link.text-danger:hover {
    background: #ffebee;
    border-color: #ffcdd2;
}

/* Prevent body scroll when drawer is open */
body.drawer-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Desktop - Hide mobile drawer elements */
@media (min-width: 992px) {
    .mobile-drawer,
    .mobile-menu-toggle,
    .mobile-user-toggle {
        display: none !important;
    }
}

/* The role partials (templates/includes/nav/_auth_*.html, _public.html,
   _account_menu.html) each contain both the desktop pills AND the drawer
   markup, and the partials are included twice — once inside .jmaths-nav
   and once inside .mobile-drawer. The drawer markup only belongs in the
   drawer; suppress it when it renders inside the visible navbar. */
.jmaths-nav .mobile-nav-link,
.jmaths-nav .mobile-nav-section-header,
.jmaths-nav .mobile-user-info {
    display: none !important;
}

/* Smaller screens - adjust drawer width */
@media (max-width: 360px) {
    .mobile-drawer-content {
        width: 100vw;
    }

    .mobile-nav-link {
        padding: 0.75rem 1rem;
    }
}

/* Safe area insets for notched phones */
@supports (padding: env(safe-area-inset-left)) {
    .mobile-drawer-content {
        padding-left: env(safe-area-inset-left);
    }

    .mobile-drawer-header {
        padding-top: max(1rem, env(safe-area-inset-top));
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .mobile-drawer-content,
    .mobile-drawer-overlay,
    .mobile-nav-link,
    .hamburger-icon span {
        transition: none;
    }
}

/* --- ./curriculum.css --- */
/**
 * Curriculum and Learning Objectives Styles
 *
 * Provides styling for learning objectives with LaTeX rendering
 */

/* Objective Cards */
.objective-card {
    border-left: 4px solid var(--jmaths-medium-blue);
    transition: var(--transition-base);
}

.objective-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

.objective-card.compact {
    font-size: 0.9rem;
}

.objective-card .objective-text {
    line-height: 1.4;
    margin-bottom: 0;
}

.objective-card .objective-notes {
    font-style: italic;
    background-color: rgba(var(--bs-info-rgb), 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    border-left: 3px solid var(--bs-info);
}

.objective-card .objective-meta .badge {
    font-size: 0.7rem;
}

/* LaTeX Math Rendering States */
.math-rendering .objective-text,
.math-rendering .objective-notes {
    opacity: 0.7;
}

.math-error .objective-text,
.math-error .objective-notes {
    border-left: 3px solid #dc3545;
    background-color: #fff5f5;
    padding: 0.25rem;
}

/* Programme-specific colors */
.objective-card[data-programme="HLAI"] {
    border-left-color: var(--jmaths-red);
}

.objective-card[data-programme="SLAI"] {
    border-left-color: var(--jmaths-medium-blue);
}

.objective-card[data-programme="HLAA"] {
    border-left-color: var(--jmaths-dark-blue);
}

.objective-card[data-programme="SLAA"] {
    border-left-color: var(--jmaths-light-blue);
}

/* Objective Lists */
.objectives-list {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    padding: 0.5rem;
}

.objectives-list .objective-card {
    margin-bottom: 0.5rem;
}

.objectives-list .objective-card:last-child {
    margin-bottom: 0;
}

/* Modal Objective Display */
.modal .objective-card {
    border: none;
    background-color: transparent;
    padding: 0;
}

.modal .objective-card .card-body {
    padding: 0.5rem 0;
}

/* Objective Selection */
.objective-selector .objective-card {
    cursor: pointer;
    border: 2px solid transparent;
}

.objective-selector .objective-card:hover {
    border-color: var(--jmaths-light-blue);
}

.objective-selector .objective-card.selected {
    border-color: var(--jmaths-medium-blue);
    background-color: rgba(var(--jmaths-medium-blue-rgb), 0.1);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .objective-card .objective-meta .badge {
        font-size: 0.6rem;
        margin: 0.1rem 0.2rem 0.1rem 0;
    }

    .objectives-list {
        max-height: 450px;
    }
}

/* Print styles */
@media print {
    .objective-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .objective-card .badge {
        border: 1px solid #666;
        color: #333 !important;
        background-color: transparent !important;
    }
}

/* --- ./documents.css --- */
/* Documents page specific styles */

.document-card {
    transition: var(--transition-slow);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.document-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--bs-blue);
}

/* Thumbnail styling */
.document-thumbnail-wrapper {
    position: relative;
    overflow: hidden;
    background: #f8f9fa;
    height: 180px;
}

.document-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease-in-out;
}

.document-card:hover .document-thumbnail {
    transform: scale(1.05);
}

.thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    color: white;
    font-size: 2rem;
    pointer-events: none;
}

.document-card:hover .thumbnail-overlay {
    opacity: 1;
}

/* Placeholder for documents without thumbnails */
.document-placeholder {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, var(--bs-gray-light) 100%);
}

/* Card content */
.document-card .card-body {
    position: relative;
    z-index: 1;
}

.document-card .card-body a,
.document-card .card-body button {
    pointer-events: auto !important;
}

.document-card-header {
    background: linear-gradient(135deg, var(--jmaths-primary, #2563eb) 0%, var(--jmaths-primary-dark, #1d4ed8) 100%);
    color: white;
    padding: 0.875rem 1rem;
}

.document-card-header .card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    line-height: 1.4;
    max-height: 2.8em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-body-content {
    padding: 1rem;
}

.document-card .card-text {
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Document Actions */
.document-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.5rem;
    border-top: 1px solid var(--bs-gray-light);
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.action-buttons .btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border-radius: 6px;
}

.document-meta-info {
    display: flex;
    align-items: center;
}

/* Admin controls */
.admin-controls {
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

.document-card:hover .admin-controls {
    opacity: 1;
}

.admin-controls .dropdown-toggle::after {
    display: none;
}

/* Drag handle */
.drag-handle {
    cursor: grab;
    color: var(--color-secondary);
    transition: var(--transition-colors);
}

.drag-handle:hover {
    color: var(--bs-blue);
}

.drag-handle:active {
    cursor: grabbing;
}

/* Action button styling */
.document-card .btn-primary,
.document-card .btn-outline-secondary {
    border-radius: 6px;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    transition: var(--transition-base);
    position: relative;
    z-index: 10;
    pointer-events: auto !important;
    cursor: pointer !important;
}

.document-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}

.document-card .btn-outline-secondary:hover {
    background-color: var(--color-secondary);
    color: white;
    transform: translateY(-2px);
}

/* Sortable container */
.sortable-documents {
    min-height: 100px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .admin-controls {
        opacity: 1;
    }

    .document-thumbnail-wrapper,
    .document-placeholder {
        height: 150px;
    }

    .drag-handle {
        display: none;
    }

    .document-card .card-body {
        padding: 0.875rem;
    }
}

@media (min-width: 1400px) {
    .document-thumbnail-wrapper,
    .document-placeholder {
        height: 200px;
    }
}

/* --- ./lms_components.css --- */
/* LMS Components CSS - DRY, Maintainable Styles Using JMaths Variables */

/* Pulsing Animation for Announcement Badges */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 193, 7, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 193, 7, 0);
    }
}

.announcement-badge {
    animation: pulse 2s infinite;
    transition: var(--transition-slow);
}

.announcement-badge:hover {
    animation: none;
    transform: scale(1.05);
}

/* LMS navigation styles moved to navigation.css for consistency */

/* Clean Dashboard Cards */
.dashboard-card {
    background: white;
    border: 1px solid var(--jmaths-light-blue);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(29, 53, 87, 0.1);
    transition: var(--transition-base);
    overflow: hidden;
}

.dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(29, 53, 87, 0.15);
    border-color: var(--jmaths-medium-blue);
}

.dashboard-card .card-header {
    background: linear-gradient(135deg, var(--jmaths-cream) 0%, white 100%);
    border-bottom: 1px solid var(--jmaths-light-blue);
    padding: 1rem 1.25rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--jmaths-dark-blue);
}

.dashboard-card .card-body {
    padding: 1.25rem;
}

/* Compact Statistics Widgets */
.stats-widget {
    background: linear-gradient(135deg, var(--jmaths-medium-blue), var(--jmaths-dark-blue));
    color: white;
    border-radius: 12px;
    padding: 1.25rem;
    text-align: center;
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(29, 53, 87, 0.2);
    transition: transform 0.15s ease;
}

.stats-widget:hover {
    transform: scale(1.02);
}

.stats-widget .stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    display: block;
    line-height: 1;
}

.stats-widget .stat-label {
    font-size: 0.8rem;
    opacity: 0.9;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* Modern Lesson Cards */
.lesson-card {
    background: white;
    border: 1px solid var(--jmaths-light-blue);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: var(--transition-base);
    border-left: 3px solid var(--jmaths-medium-blue);
}

.lesson-card:hover {
    border-left-color: var(--jmaths-dark-blue);
    box-shadow: 0 4px 6px -1px rgba(29, 53, 87, 0.1);
    transform: translateX(2px);
}

/* Compact Course Badges */
.course-badge {
    background: var(--jmaths-light-blue);
    color: var(--jmaths-dark-blue);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--jmaths-medium-blue);
}

/* Modern Action Buttons */
.quick-action-btn {
    background: linear-gradient(135deg, var(--jmaths-medium-blue), var(--jmaths-dark-blue));
    border: none;
    color: white;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 6px -1px rgba(29, 53, 87, 0.2);
    min-height: 44px;
}

.quick-action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(29, 53, 87, 0.2);
    color: white;
}

/* Clean Breadcrumbs */
.lms-breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.lms-breadcrumb .breadcrumb-item a {
    color: var(--jmaths-medium-blue);
    text-decoration: none;
    font-weight: 500;
}

.lms-breadcrumb .breadcrumb-item.active {
    color: var(--jmaths-dark-blue);
    font-weight: 600;
}

/* Typography */
.lms-interface h2 {
    font-weight: 700;
    color: var(--jmaths-dark-blue);
    margin-bottom: 0.5rem;
}

.lms-interface h5 {
    font-weight: 600;
    color: var(--jmaths-medium-blue);
}

.lms-interface h6 {
    font-weight: 600;
    color: var(--jmaths-dark-blue);
    font-size: 0.95rem;
}

/* Compact Tables */
.lms-interface .table th {
    border-top: none;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--jmaths-dark-blue);
    padding: 0.75rem;
}

.lms-interface .table td {
    padding: 0.75rem;
    border-color: var(--jmaths-light-blue);
}

/* Modern Alerts */
.lms-interface .alert {
    border: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
}

/* Success/Info variants */
.stats-widget.success {
    background: linear-gradient(135deg, #28a745, #20c997);
}

.stats-widget.info {
    background: linear-gradient(135deg, #17a2b8, var(--color-info-hover)); /* Was purple #6f42c1, changed to cyan */
}

.stats-widget.warning {
    background: linear-gradient(135deg, var(--jmaths-red), #dc3545);
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Accessibility - Focus States */
.dashboard-card:focus-within {
    outline: 2px solid var(--jmaths-medium-blue);
    outline-offset: 2px;
}

.stats-widget:focus-within {
    outline: 2px solid white;
    outline-offset: 2px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .lms-nav {
        padding: 0.5rem 0;
    }

    .lms-nav .nav-link {
        margin: 0.2rem 0;
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .stats-widget {
        margin-bottom: 0.5rem;
        padding: 1rem;
    }

    .stats-widget .stat-number {
        font-size: 1.5rem;
    }

    .dashboard-card .card-body {
        padding: 1rem;
    }

    .lesson-card {
        padding: 0.75rem;
    }
}

@media (max-width: 576px) {
    .quick-action-btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .lms-interface .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* --- ./mobile_components.css --- */
/* =================================================
   MOBILE-FIRST COMPONENT SYSTEM - DRY CSS
   ================================================= */

/* ========================================
   MOBILE TOUCH TARGETS & INTERACTIONS
   ======================================== */

.mobile-touch-target {
    min-height: 44px !important;
    min-width: 44px !important;
    padding: 0.5rem !important;
}

/* Enhanced touch feedback */
.mobile-touch-target:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* ========================================
   MOBILE PAGE HEADERS
   ======================================== */

.mobile-page-header {
    padding: 1rem 0;
    border-bottom: 1px solid var(--bs-gray-light);
}

.mobile-page-header h1 {
    font-size: 1.25rem;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.mobile-page-header .btn-sm {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
}

/* ========================================
   MOBILE CARDS & CONTENT
   ======================================== */

.mobile-card {
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.mobile-card .card-header {
    padding: 0.75rem 1rem;
    background-color: #f8f9fa;
    border-bottom: 1px solid var(--bs-gray-light);
}

.mobile-card .card-body {
    padding: 1rem;
}

.mobile-card .card-footer {
    padding: 0.75rem 1rem;
    background-color: #f8f9fa;
}

/* Mobile dropdowns with larger touch targets */
.mobile-dropdown .dropdown-item {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.mobile-dropdown .dropdown-item:hover {
    background-color: var(--jmaths-light-blue);
}

/* ========================================
   MOBILE RESOURCE GRID
   ======================================== */

.mobile-resource-card {
    border: 1px solid var(--bs-gray-light);
    border-radius: 0.5rem;
    transition: var(--transition-base);
}

.mobile-resource-card:hover {
    border-color: var(--jmaths-medium-blue);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.mobile-resource-card .card-body {
    padding: 0.75rem;
}

.mobile-resource-card .card-title {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

/* ========================================
   MOBILE ACCORDION
   ======================================== */

.mobile-accordion-btn {
    padding: 1rem !important;
    border: none !important;
    background-color: white !important;
    font-size: 1rem;
}

.mobile-accordion-btn:not(.collapsed) {
    background-color: var(--jmaths-cream) !important;
    border-bottom: 1px solid var(--jmaths-light-blue) !important;
}

.mobile-accordion-btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(69, 123, 157, 0.25) !important;
}

.mobile-accordion-item {
    border: 1px solid var(--bs-gray-light);
    border-radius: 0.5rem;
    overflow: hidden;
}

.mobile-accordion-item .accordion-body {
    padding: 1rem;
    background-color: #fafbfc;
}

.unit-number {
    background-color: var(--jmaths-medium-blue);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: bold;
    font-size: 0.8rem;
    min-width: 2rem;
    text-align: center;
}

/* ========================================
   MOBILE NAVIGATION & BUTTONS
   ======================================== */

/* Stack buttons vertically on mobile */
@media (max-width: 576px) {
    .btn-group-mobile {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
        width: 100% !important;
    }

    .btn-group-mobile .btn {
        width: 100% !important;
        margin: 0 !important;
    }

    /* Mobile-friendly button sizes */
    .btn-sm {
        min-height: 40px;
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    /* Full-width primary actions on mobile */
    .mobile-primary-action {
        width: 100%;
        margin-top: 0.5rem;
    }
}

/* ========================================
   MOBILE TYPOGRAPHY & SPACING
   ======================================== */

@media (max-width: 576px) {
    /* Adjust heading sizes for mobile */
    .h1, h1:not(.keep-size) { font-size: 1.5rem !important; }
    .h2, h2:not(.keep-size) { font-size: 1.375rem !important; }
    .h3, h3:not(.keep-size) { font-size: 1.25rem !important; }
    .h4, h4:not(.keep-size) { font-size: 1.125rem !important; }

    /* Mobile container padding - lighter touch */
    .container:not(.keep-padding) {
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
    }

    .container-fluid:not(.keep-padding) {
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
    }

    /* Reduce card spacing on mobile */
    .card:not(.keep-spacing) {
        margin-bottom: 0.75rem;
    }

    .card-body:not(.keep-padding) {
        padding: 0.75rem !important;
    }

    .card-header:not(.keep-padding) {
        padding: 0.65rem 0.75rem !important;
        font-size: 0.9rem;
    }

    /* Scrollable containers */
    .table-responsive {
        margin-bottom: 0.75rem;
    }

    /* Mobile-friendly tables */
    .table-responsive {
        font-size: 0.875rem;
    }

    /* Hide complex elements on mobile */
    .mobile-hide, .d-none-mobile {
        display: none !important;
    }

    /* Show mobile-only elements */
    .mobile-only, .d-block-mobile {
        display: block !important;
    }

    /* Mobile text sizing */
    .lead {
        font-size: 1rem !important;
    }

    /* Mobile badge sizing */
    .badge:not(.keep-size) {
        font-size: 0.75rem !important;
        padding: 0.25rem 0.5rem !important;
    }
}

/* Desktop overrides */
@media (min-width: 577px) {
    .mobile-only {
        display: none !important;
    }
}

/* ========================================
   MOBILE FORM IMPROVEMENTS
   ======================================== */

@media (max-width: 576px) {
    .form-control, .form-select {
        min-height: 44px;
        font-size: 1rem; /* Prevents zoom on iOS */
    }

    .input-group .btn {
        min-height: 44px;
    }

    /* Mobile modal adjustments */
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }

    .modal-content {
        border-radius: 0.5rem;
    }

    .modal-header, .modal-footer {
        padding: 1rem;
    }

    .modal-body {
        padding: 1rem;
    }

    /* Full-screen modals on mobile */
    .modal-fullscreen-mobile .modal-dialog,
    .modal-dialog-fullscreen-sm-down {
        width: 100vw;
        max-width: 100vw;
        height: 100vh;
        margin: 0;
    }

    .modal-fullscreen-mobile .modal-content,
    .modal-dialog-fullscreen-sm-down .modal-content {
        height: 100%;
        border: 0;
        border-radius: 0;
        display: flex;
        flex-direction: column;
    }

    .modal-fullscreen-mobile .modal-header,
    .modal-dialog-fullscreen-sm-down .modal-header {
        border-radius: 0;
        position: sticky;
        top: 0;
        z-index: 10;
        background: inherit;
    }

    .modal-fullscreen-mobile .modal-body,
    .modal-dialog-fullscreen-sm-down .modal-body {
        flex: 1 1 auto;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .modal-fullscreen-mobile .modal-footer,
    .modal-dialog-fullscreen-sm-down .modal-footer {
        border-radius: 0;
        position: sticky;
        bottom: 0;
        background: #fff;
        box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    }

    /* Auto full-screen for form modals on small screens */
    .modal-form .modal-dialog {
        width: 100vw;
        max-width: 100vw;
        height: 100vh;
        margin: 0;
    }

    .modal-form .modal-content {
        height: 100%;
        border: 0;
        border-radius: 0;
    }
}

/* ========================================
   MOBILE UTILITY CLASSES
   ======================================== */

/* Text truncation for mobile */
.mobile-truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Mobile-specific spacing */
.mobile-mb-0 { margin-bottom: 0 !important; }
.mobile-mb-1 { margin-bottom: 0.25rem !important; }
.mobile-mb-2 { margin-bottom: 0.5rem !important; }
.mobile-mb-3 { margin-bottom: 1rem !important; }

.mobile-p-2 { padding: 0.5rem !important; }
.mobile-p-3 { padding: 1rem !important; }

/* Mobile flex utilities */
.mobile-flex-column {
    flex-direction: column !important;
}

.mobile-flex-wrap {
    flex-wrap: wrap !important;
}

/* Mobile width utilities */
.mobile-w-100 {
    width: 100% !important;
}

/* ========================================
   MOBILE PAGINATION
   ======================================== */

@media (max-width: 576px) {
    /* Larger touch targets for pagination */
    .pagination {
        gap: 0.25rem;
        flex-wrap: wrap;
        justify-content: center !important;
    }

    .pagination .page-link {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.9rem;
        padding: 0.5rem 0.75rem;
        border-radius: 8px !important;
    }

    .pagination .page-item:first-child .page-link,
    .pagination .page-item:last-child .page-link {
        border-radius: 8px !important;
    }

    /* Simplified pagination - hide some page numbers on very small screens */
    .pagination .page-item:not(.active):not(:first-child):not(:last-child):not(:nth-child(2)):not(:nth-last-child(2)) {
        display: none;
    }

    /* Page info text below pagination */
    .pagination + .text-center {
        font-size: 0.8rem;
        margin-top: 0.75rem !important;
    }

    /* Active page indicator - more prominent */
    .pagination .page-item.active .page-link {
        font-weight: 600;
        box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    }
}

/* ========================================
   MOBILE LOADING & FEEDBACK
   ======================================== */

@media (max-width: 576px) {
    /* Larger loading spinners for mobile */
    .spinner-border-sm {
        width: 1.5rem;
        height: 1.5rem;
    }

    /* Mobile-friendly alerts */
    .alert {
        padding: 1rem;
        font-size: 0.9rem;
        border-radius: 0.5rem;
    }

    /* Mobile toast adjustments */
    .toast {
        font-size: 0.9rem;
    }
}

/* ========================================
   ACCESSIBILITY & FOCUS STATES
   ======================================== */

/* Enhanced focus indicators for mobile accessibility */
.mobile-touch-target:focus,
.mobile-accordion-btn:focus,
.mobile-card .btn:focus {
    outline: 2px solid var(--jmaths-medium-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .mobile-card {
        border: 2px solid;
    }

    .mobile-accordion-item {
        border: 2px solid;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .mobile-touch-target:active {
        transform: none;
    }

    .mobile-resource-card {
        transition: none;
    }
}