/* =================================================================
   QUANTUM QUIZ - MAIN STYLESHEET
   Design System "Quantique" pour PHY321
   Université de Yaoundé I
   ================================================================= */

/* =================================================================
   1. CSS VARIABLES & DESIGN TOKENS
   ================================================================= */

:root {
    /* Quantum Color Palette */
    --quantum-dark: #0a0e27;
    --quantum-blue: #1e3a8a;
    --quantum-purple: #7c3aed;
    --quantum-cyan: #06b6d4;
    --quantum-pink: #ec4899;

    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    /* Background Colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: rgba(30, 41, 59, 0.8);
    --bg-card-hover: rgba(51, 65, 85, 0.9);

    /* Border Colors */
    --border-primary: rgba(148, 163, 184, 0.2);
    --border-accent: rgba(124, 58, 237, 0.4);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--quantum-purple), var(--quantum-cyan));
    --gradient-secondary: linear-gradient(135deg, var(--quantum-blue), var(--quantum-purple));
    --gradient-accent: linear-gradient(90deg, var(--quantum-cyan), var(--quantum-purple));

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.4);

    /* Spacing Scale */
    --space-xs: 0.25rem;  /* 4px */
    --space-sm: 0.5rem;   /* 8px */
    --space-md: 1rem;     /* 16px */
    --space-lg: 1.5rem;   /* 24px */
    --space-xl: 2rem;     /* 32px */
    --space-2xl: 3rem;    /* 48px */
    --space-3xl: 4rem;    /* 64px */

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;      /* 48px */

    /* Border Radius */
    --radius-sm: 0.25rem;  /* 4px */
    --radius-md: 0.5rem;   /* 8px */
    --radius-lg: 1rem;     /* 16px */
    --radius-xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Light Theme Variables */
[data-theme="light"] {
    --quantum-dark: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: rgba(241, 245, 249, 0.9);
    --border-primary: rgba(148, 163, 184, 0.3);
}

/* =================================================================
   2. RESET & BASE STYLES
   ================================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =================================================================
   3. TYPOGRAPHY
   ================================================================= */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

a {
    color: var(--quantum-cyan);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--quantum-purple);
}

strong {
    font-weight: 600;
}

code, kbd {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.2em 0.4em;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

/* =================================================================
   4. LAYOUT & CONTAINERS
   ================================================================= */

.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-title {
    font-size: var(--text-4xl);
    text-align: center;
    margin-bottom: var(--space-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subsection-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-lg);
}

/* =================================================================
   5. PARTICLE BACKGROUND
   ================================================================= */

.particle-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.6;
}

/* =================================================================
   6. HEADER & NAVIGATION
   ================================================================= */

.main-header {
    background-color: var(--bg-card);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    padding: var(--space-lg) 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
}

.title-group {
    display: flex;
    flex-direction: column;
}

.site-title {
    font-size: var(--text-2xl);
    margin: 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.course-code {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    margin: 0;
}

.main-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.theme-toggle {
    background: transparent;
    border: 2px solid var(--border-primary);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    border-color: var(--quantum-purple);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* =================================================================
   7. BUTTONS
   ================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

.btn-secondary:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--quantum-purple);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #34d399);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--error), #f87171);
    color: white;
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--text-lg);
}

.btn-small {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
}

/* =================================================================
   8. CARDS
   ================================================================= */

.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--quantum-purple);
}

/* =================================================================
   9. HERO SECTION
   ================================================================= */

.hero {
    padding: var(--space-3xl) 0;
    text-align: center;
}

.hero-title {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto var(--space-2xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--text-4xl);
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* =================================================================
   10. QUIZ CONFIGURATION
   ================================================================= */

.quiz-config {
    padding: var(--space-3xl) 0;
}

.config-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    max-width: 800px;
    margin: 0 auto;
}

.config-title {
    text-align: center;
    margin-bottom: var(--space-2xl);
    font-size: var(--text-3xl);
}

.config-section {
    margin-bottom: var(--space-2xl);
}

.config-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.label-icon {
    font-size: var(--text-2xl);
}

.config-select {
    width: 100%;
    padding: var(--space-md);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    cursor: pointer;
    transition: all var(--transition-base);
}

.config-select:hover,
.config-select:focus {
    border-color: var(--quantum-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
    outline: none;
}

.config-hint {
    margin-top: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-style: italic;
}

/* Slider */
.slider-container {
    margin-bottom: var(--space-md);
}

.config-slider {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    outline: none;
    -webkit-appearance: none;
}

.config-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.config-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    cursor: pointer;
    border: none;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-muted);
    position: relative;
}

.slider-labels span {
    position: absolute;
    transform: translateX(-50%);
}

.slider-labels span:nth-child(1) {
    left: 0%;
}

.slider-labels span:nth-child(2) {
    left: 25%;
}

.slider-labels span:nth-child(3) {
    left: 50%;
}

.slider-labels span:nth-child(4) {
    left: 75%;
}

.slider-labels span:nth-child(5) {
    left: 100%;
}

.slider-value {
    text-align: center;
    font-size: var(--text-base);
    color: var(--text-secondary);
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-base);
}

.checkbox-label:hover {
    background-color: var(--bg-tertiary);
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--gradient-primary);
    border-color: var(--quantum-purple);
}

/* Radio Buttons */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.radio-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.radio-label:hover {
    border-color: var(--quantum-purple);
    background-color: var(--bg-tertiary);
}

.radio-label input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    flex-shrink: 0;
    margin-top: 2px;
}

.radio-label input[type="radio"]:checked + .radio-custom {
    border-color: var(--quantum-purple);
    box-shadow: inset 0 0 0 4px var(--bg-card), inset 0 0 0 20px var(--quantum-purple);
}

.radio-content {
    flex: 1;
}

.radio-content strong {
    display: block;
    margin-bottom: var(--space-xs);
}

.radio-content small {
    color: var(--text-muted);
    font-size: var(--text-sm);
}

/* =================================================================
   11. STATISTICS
   ================================================================= */

.statistics {
    padding: var(--space-3xl) 0;
    background-color: var(--bg-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--quantum-purple);
}

.stat-icon {
    font-size: var(--text-4xl);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: var(--text-3xl);
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-name {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* =================================================================
   12. FOOTER
   ================================================================= */

.main-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--space-2xl) 0;
    margin-top: var(--space-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.footer-section h4 {
    margin-bottom: var(--space-md);
    font-size: var(--text-lg);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-primary);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

/* =================================================================
   13. ANIMATIONS
   ================================================================= */

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* =================================================================
   14. UTILITY CLASSES
   ================================================================= */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

.spacer { flex: 1; }

/* =================================================================
   15. ABOUT & RESOURCES PAGES
   ================================================================= */

.about-page,
.resources-page {
    background: var(--bg-primary);
    min-height: 100vh;
}

.page-hero,
.about-hero {
    text-align: center;
    padding: var(--space-xl) 0;
    margin-bottom: var(--space-xl);
}

.page-hero h1,
.about-hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--accent), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-top: var(--space-md);
}

.about-section,
.resources-section {
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--secondary);
    border-radius: 12px;
}

.about-section h2,
.resources-section h2 {
    font-size: 1.8rem;
    margin-bottom: var(--space-lg);
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.about-section h3 {
    font-size: 1.3rem;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.objectives-list,
.prerequisites-list,
.features-list,
.bibliography {
    list-style: none;
    padding: 0;
}

.objectives-list li,
.prerequisites-list li,
.features-list li {
    padding: var(--space-md);
    margin: var(--space-sm) 0;
    background: rgba(0, 217, 255, 0.05);
    border-left: 3px solid var(--accent);
    border-radius: 4px;
}

.bibliography li {
    padding: var(--space-md);
    margin: var(--space-md) 0;
    background: var(--primary);
    border-radius: 8px;
}

.bibliography strong {
    color: var(--accent);
}

.bibliography small {
    display: block;
    margin-top: var(--space-xs);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.chapter-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.chapter-card {
    background: var(--primary);
    padding: var(--space-lg);
    border-radius: 12px;
    border: 1px solid rgba(0, 217, 255, 0.2);
    transition: var(--transition);
}

.chapter-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.2);
}

.chapter-card h3 {
    color: var(--accent);
    margin-top: 0;
}

.chapter-card .key-experiments,
.chapter-card .key-concepts {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.evaluation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.eval-card {
    background: var(--primary);
    padding: var(--space-lg);
    border-radius: 12px;
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition);
}

.eval-card:hover {
    border-color: var(--accent);
}

.eval-card .percentage {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent);
    margin: var(--space-md) 0;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.resource-card {
    background: var(--primary);
    padding: var(--space-lg);
    border-radius: 12px;
    border: 1px solid rgba(0, 217, 255, 0.2);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.resource-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.2);
}

.resource-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.resource-card h3 {
    color: var(--text-primary);
    margin: 0 0 var(--space-md) 0;
    font-size: 1.2rem;
}

.resource-card p {
    flex: 1;
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.resource-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin: var(--space-md) 0;
}

.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid var(--accent);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--accent);
    white-space: nowrap;
}

.resource-card .btn-primary {
    margin-top: auto;
    width: 100%;
    text-align: center;
    text-decoration: none;
}

.tips-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.tip-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: var(--space-lg);
    border-radius: 12px;
    border-left: 4px solid var(--accent);
}

.tip-card h3 {
    color: var(--accent);
    margin: 0 0 var(--space-md) 0;
    font-size: 1.1rem;
}

.tip-card p {
    margin: 0;
    line-height: 1.6;
}

/* ===========================================
   NOUVEAUX TYPES DE QUESTIONS
   =========================================== */

/* Hotspot (zones cliquables sur image) */
.hotspot-area {
    margin: var(--space-lg) 0;
}

.hotspot-instruction {
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-md);
}

.hotspot-svg-container {
    position: relative;
    margin: 0 auto;
    max-width: 600px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.05);
}

.hotspot-canvas {
    position: absolute;
    top: 0;
    left: 0;
    cursor: crosshair;
    opacity: 0.9;
}

.hotspot-legend {
    text-align: center;
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background: rgba(0, 255, 0, 0.1);
    border-radius: 4px;
    color: var(--success-color);
}

/* Drag & Drop */
.drag-drop-area {
    margin: var(--space-lg) 0;
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.drag-drop-instruction {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.draggable-items-zone {
    flex: 1;
    min-width: 250px;
    padding: var(--space-md);
    background: rgba(124, 58, 237, 0.05);
    border: 2px dashed var(--accent);
    border-radius: 8px;
    min-height: 200px;
}

.draggable-item {
    background: var(--primary);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-md);
    margin: var(--space-xs) 0;
    border-radius: 6px;
    border: 2px solid var(--accent);
    cursor: move;
    user-select: none;
    transition: var(--transition);
}

.draggable-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.3);
}

.draggable-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.draggable-item.dropped {
    cursor: grab;
    background: rgba(0, 217, 255, 0.1);
}

.draggable-item.correct {
    border-color: var(--success-color);
    background: rgba(0, 255, 0, 0.1);
}

.drop-zones {
    flex: 2;
    min-width: 300px;
    display: grid;
    gap: var(--space-md);
}

.drop-zone {
    padding: var(--space-md);
    background: rgba(0, 217, 255, 0.05);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    min-height: 80px;
    transition: var(--transition);
}

.drop-zone.drag-over {
    background: rgba(0, 217, 255, 0.2);
    border-color: var(--accent);
    transform: scale(1.02);
}

.drop-zone-label {
    font-weight: 600;
    color: var(--accent);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-xs);
    border-bottom: 1px solid var(--border-color);
    pointer-events: none;
}

.dropped-items {
    min-height: 40px;
    pointer-events: auto;
}

/* Flashcard (recto-verso) */
.flashcard-container {
    margin: var(--space-lg) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.flashcard {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 300px;
    perspective: 1000px;
    cursor: pointer;
}

.flashcard-front,
.flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    transition: transform 0.6s;
    border-radius: 12px;
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.flashcard-front {
    background: linear-gradient(135deg, var(--primary), #1a1a2e);
    border: 2px solid var(--accent);
}

.flashcard-back {
    background: linear-gradient(135deg, #1a1a2e, var(--primary));
    border: 2px solid var(--success-color);
    transform: rotateY(180deg);
}

.flashcard.flipped .flashcard-front {
    transform: rotateY(180deg);
}

.flashcard.flipped .flashcard-back {
    transform: rotateY(0deg);
}

.flashcard-content {
    text-align: center;
    width: 100%;
}

.flashcard-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.flashcard-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.flashcard-hint {
    margin-top: var(--space-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    padding: var(--space-sm);
    background: rgba(0, 217, 255, 0.1);
    border-radius: 4px;
}

.flashcard-flip-btn {
    padding: var(--space-sm) var(--space-lg);
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.flashcard-flip-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.flashcard-feedback {
    text-align: center;
    margin-top: var(--space-md);
}

.flashcard-feedback p {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.feedback-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

.feedback-btn {
    padding: var(--space-sm) var(--space-xl);
    border: 2px solid var(--border-color);
    background: var(--secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.feedback-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.3);
}

.feedback-btn.feedback-yes {
    border-color: var(--success-color);
}

.feedback-btn.feedback-yes:hover,
.feedback-btn.feedback-yes.selected {
    background: rgba(0, 255, 0, 0.2);
    border-color: var(--success-color);
}

.feedback-btn.feedback-no {
    border-color: var(--error-color);
}

.feedback-btn.feedback-no:hover,
.feedback-btn.feedback-no.selected {
    background: rgba(255, 0, 0, 0.2);
    border-color: var(--error-color);
}

.feedback-btn.selected {
    transform: scale(1.05);
}

/* Responsive */
@media (max-width: 768px) {
    .page-hero h1,
    .about-hero h1 {
        font-size: 1.8rem;
    }

    .chapter-details,
    .evaluation-grid,
    .resources-grid,
    .tips-container {
        grid-template-columns: 1fr;
    }

    .about-section,
    .resources-section {
        padding: var(--space-md);
    }

    /* Responsive pour les nouveaux types de questions */
    .drag-drop-area {
        flex-direction: column;
    }

    .draggable-items-zone,
    .drop-zones {
        min-width: 100%;
    }

    .flashcard {
        max-width: 100%;
        height: 250px;
    }

    .flashcard-text {
        font-size: 1rem;
    }

    .hotspot-svg-container {
        max-width: 100%;
    }

    .feedback-buttons {
        flex-direction: column;
        width: 100%;
    }

    .feedback-btn {
        width: 100%;
    }
}

/* =================================================================
   RESULTS PAGE - Score Display
   ================================================================= */

/* Score Circle Container */
.score-display {
    display: flex;
    justify-content: center;
    margin: var(--space-xl) 0;
}

.score-circle {
    position: relative;
    width: 200px;
    height: 200px;
}

/* SVG Score Ring */
.score-ring {
    transform: rotate(-90deg);
}

.score-ring-background {
    fill: none;
    stroke: rgba(124, 58, 237, 0.2);
    stroke-width: 12;
}

.score-ring-fill {
    fill: none;
    stroke: var(--accent);
    stroke-width: 12;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease-out, stroke 0.5s ease;
}

/* Score Text Overlay */
.score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.score-percentage {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.score-fraction {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1;
}

.score-grade {
    font-size: 2rem;
    font-weight: 800;
    margin-top: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-md);
    border: 2px solid currentColor;
    line-height: 1;
    transition: all 0.3s ease;
}

/* Results Hero Section */
.results-hero {
    padding: var(--space-2xl) 0;
    text-align: center;
}

.results-hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.celebration-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    animation: bounce 1s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.results-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.results-message {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-top: var(--space-lg);
}

/* Responsive Results */
@media (max-width: 768px) {
    .score-circle {
        width: 160px;
        height: 160px;
    }
    
    .score-ring {
        width: 160px;
        height: 160px;
    }
    
    .score-percentage {
        font-size: 2rem;
    }
    
    .score-grade {
        font-size: 1.5rem;
    }
    
    .celebration-icon {
        font-size: 3rem;
    }
    
    .results-title {
        font-size: 2rem;
    }
}

/* Animation du cercle SVG */
.score-ring-fill.animated {
    transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1),
                stroke 0.5s ease;
}

/* Animation pulse pour les statistiques en temps réel */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
        color: var(--accent);
    }
}

/* =================================================================
   LANGUAGE SELECTOR (i18n)
   ================================================================= */

.language-selector-container {
    position: relative;
    margin-left: 1rem;
}

.language-selector {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.language-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--quantum-purple);
}

.language-btn .lang-flag {
    font-size: 1.25rem;
}

.language-btn .lang-code {
    font-weight: 600;
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 150px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    list-style: none;
    padding: 0.5rem 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-dropdown li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

.language-dropdown li:hover {
    background: var(--bg-tertiary);
}

.language-dropdown li.active {
    background: rgba(124, 58, 237, 0.2);
    color: var(--quantum-purple);
}

.language-dropdown .lang-flag {
    font-size: 1.25rem;
}

.language-dropdown .lang-name {
    font-size: 0.875rem;
}

/* =================================================================
   DAILY QUESTION WIDGET
   ================================================================= */

.daily-question-section {
    padding: var(--space-lg) 0;
}

.daily-question-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    padding: var(--space-xl);
    max-width: 800px;
    margin: 0 auto;
    transition: all var(--transition-base);
}

.daily-question-card:hover {
    border-color: var(--quantum-purple);
    box-shadow: var(--shadow-glow);
}

.daily-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-primary);
}

.daily-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.daily-title h3 {
    margin: 0;
    font-size: var(--text-xl);
    color: var(--text-primary);
}

.daily-icon {
    font-size: 1.5rem;
}

.daily-streak {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    color: white;
    font-weight: bold;
}

.streak-icon {
    font-size: 1.2rem;
}

.streak-count {
    font-size: var(--text-xl);
}

.streak-label {
    font-size: var(--text-sm);
    opacity: 0.9;
}

.daily-chapter {
    font-size: var(--text-sm);
    color: var(--quantum-cyan);
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(6, 182, 212, 0.1);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.daily-question-text {
    font-size: var(--text-lg);
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.daily-formula {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    text-align: center;
    font-size: var(--text-lg);
    border-left: 3px solid var(--quantum-purple);
}

.daily-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.daily-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-secondary);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
    font-size: var(--text-base);
    text-align: left;
    width: 100%;
}

.daily-option:hover:not(.disabled) {
    border-color: var(--quantum-purple);
    background: var(--bg-tertiary);
    transform: translateX(5px);
}

.daily-option .option-letter {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--quantum-purple);
    border-radius: var(--radius-full);
    font-weight: bold;
    color: white;
    flex-shrink: 0;
}

.daily-option .option-text {
    flex: 1;
}

.daily-option .correct-mark {
    color: var(--success);
    font-size: 1.5rem;
    margin-left: auto;
}

.daily-option.correct {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.daily-option.correct .option-letter {
    background: var(--success);
}

.daily-option.incorrect {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.daily-option.incorrect .option-letter {
    background: var(--error);
}

.daily-option.disabled {
    cursor: default;
    opacity: 0.8;
}

.daily-footer {
    margin-top: var(--space-lg);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.daily-completed {
    color: var(--success);
    font-weight: bold;
}

.daily-hint {
    color: var(--warning);
}

.daily-success {
    color: var(--success);
    font-weight: bold;
    font-size: var(--text-lg);
}

.daily-fail {
    color: var(--error);
    font-size: var(--text-base);
}

.daily-explanation {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    animation: fadeIn 0.3s ease-in-out;
}

.daily-explanation.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
}

.daily-explanation.fail {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
}

.daily-explanation h4 {
    margin: 0 0 var(--space-md) 0;
    font-size: var(--text-lg);
}

.daily-explanation.success h4 {
    color: var(--success);
}

.daily-explanation.fail h4 {
    color: var(--error);
}

.daily-explanation p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.daily-ref {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

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

@media (max-width: 768px) {
    .daily-header {
        flex-direction: column;
        gap: var(--space-md);
        align-items: flex-start;
    }

    .daily-question-card {
        padding: var(--space-lg);
    }

    .daily-option {
        padding: var(--space-sm) var(--space-md);
    }
}

/* ========================================
   TARGETED REVIEW WIDGET
======================================== */

.targeted-review-widget {
    padding: var(--space-xl) 0;
    background: linear-gradient(180deg,
        rgba(124, 58, 237, 0.05) 0%,
        transparent 100%);
}

.review-card {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.review-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin: 0 0 var(--space-sm) 0;
    color: var(--text-primary);
}

.review-subtitle {
    color: var(--text-secondary);
    margin: 0 0 var(--space-xl) 0;
}

.review-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.review-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.review-option:hover {
    background: var(--surface-hover);
    border-color: var(--quantum-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.review-option .option-icon {
    font-size: var(--text-2xl);
    flex-shrink: 0;
}

.review-option .option-content {
    flex: 1;
}

.review-option .option-content strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.review-option .option-content small {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.review-option .option-arrow {
    color: var(--quantum-purple);
    font-size: var(--text-xl);
    opacity: 0;
    transition: all 0.2s ease;
}

.review-option:hover .option-arrow {
    opacity: 1;
    transform: translateX(4px);
}

.btn-export-favorites {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: 1px solid var(--quantum-purple);
    color: var(--quantum-purple);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--text-sm);
    transition: all 0.2s ease;
}

.btn-export-favorites:hover {
    background: var(--quantum-purple);
    color: white;
}

.btn-export-favorites:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ========================================
   FAVORITES SYSTEM
======================================== */

.question-actions {
    display: flex;
    gap: var(--space-sm);
    margin-left: auto;
}

.favorite-btn,
.note-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--background);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--text-lg);
    transition: all 0.2s ease;
}

.favorite-btn:hover,
.note-btn:hover {
    background: var(--surface-hover);
    transform: scale(1.1);
}

.favorite-btn.is-favorite {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.note-btn.has-note {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

/* Favorites notification */
.fav-notification {
    position: fixed;
    bottom: 100px;
    right: var(--space-lg);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-md) var(--space-lg);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    animation: slideInRight 0.3s ease;
}

.fav-notification.success {
    border-color: var(--success);
}

.fav-notification.info {
    border-color: var(--quantum-cyan);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Note modal */
.note-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: var(--space-lg);
}

.note-modal {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    width: 100%;
    max-width: 500px;
    box-shadow: var(--shadow-2xl);
}

.note-modal h3 {
    margin: 0 0 var(--space-lg) 0;
    font-size: var(--text-xl);
}

.note-modal textarea {
    width: 100%;
    min-height: 150px;
    padding: var(--space-md);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--text-base);
    resize: vertical;
    margin-bottom: var(--space-lg);
}

.note-modal textarea:focus {
    outline: none;
    border-color: var(--quantum-purple);
}

.note-modal-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

.note-modal-actions button {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--text-sm);
    transition: all 0.2s ease;
}

.note-modal-actions .btn-cancel {
    background: var(--background);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.note-modal-actions .btn-cancel:hover {
    background: var(--surface-hover);
}

.note-modal-actions .btn-save {
    background: var(--quantum-purple);
    border: none;
    color: white;
}

.note-modal-actions .btn-save:hover {
    background: var(--quantum-purple-dark);
}

@media (max-width: 768px) {
    .review-options {
        grid-template-columns: 1fr;
    }

    .review-card {
        padding: var(--space-lg);
    }

    .question-actions {
        margin-left: 0;
        margin-top: var(--space-sm);
    }
}

/* ========================================
   ANIMATION LINKS
======================================== */

.related-animations {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: var(--radius-lg);
    border: 1px solid rgba(124, 58, 237, 0.3);
}

.animations-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-weight: 600;
    color: var(--quantum-purple);
}

.animations-icon {
    font-size: var(--text-xl);
}

.animations-label {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.animations-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.animation-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all 0.2s ease;
}

.animation-link:hover {
    background: var(--quantum-purple);
    border-color: var(--quantum-purple);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.animation-link .anim-icon {
    font-size: var(--text-lg);
}

.animation-link .anim-title {
    font-weight: 500;
}

@media (max-width: 768px) {
    .animations-list {
        flex-direction: column;
    }

    .animation-link {
        width: 100%;
        justify-content: center;
    }
}