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

:root {
    --primary: #5B3A29;
    --primary-light: #7B5B3A;
    --primary-dark: #3E2518;
    --accent: #C9A84C;
    --accent-light: #E0C675;
    --bg: #FAF6F0;
    --bg-card: #FFFFFF;
    --text: #2C1810;
    --text-light: #6B5A4E;
    --text-muted: #9B8A7E;
    --success: #2E7D32;
    --success-bg: #E8F5E9;
    --error: #C62828;
    --error-bg: #FFEBEE;
    --border: #E0D5C8;
    --shadow: 0 2px 8px rgba(60, 37, 24, 0.08);
    --shadow-lg: 0 4px 20px rgba(60, 37, 24, 0.12);
    --radius: 10px;
    --radius-lg: 16px;
    --transition: 0.25s ease;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

ul { list-style: none; }

/* ===== HEADER / NAV ===== */
header {
    background: var(--primary);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 1.6rem;
}

nav ul {
    display: flex;
    gap: 4px;
}

nav ul li a {
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background var(--transition);
    color: rgba(255,255,255,0.85);
}

nav ul li a:hover,
nav ul li a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}

.hamburger span {
    width: 25px;
    height: 2.5px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== MAIN CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* ===== HERO / WELCOME ===== */
.hero {
    text-align: center;
    padding: 50px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(201,168,76,0.1) 0%, transparent 60%);
    animation: pulse 6s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 1; }
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    position: relative;
}

.hero .subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 30px;
    position: relative;
}

.hero .welcome-msg {
    font-size: 1.3rem;
    margin-bottom: 8px;
    position: relative;
    min-height: 2em;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    position: relative;
}

.btn-accent {
    background: var(--accent);
    color: var(--primary-dark);
}

.btn-accent:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(201,168,76,0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-success:hover {
    background: #388E3C;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.85rem;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: transform var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    display: block;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* ===== SECTIONS ===== */
.section-title {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title .icon {
    font-size: 1.3rem;
}

/* Titres de sections promotionnels (accueil) : rendu identique à l'ancien h3 */
.daily-question h2.section-title {
    font-size: 1.2rem;
}

.random-book-info h2.section-title {
    margin-bottom: 5px;
}

/* ===== CONTENU INTRODUCTIF (SEO / lisibilité) ===== */
.intro-block {
    margin-bottom: 32px;
}

.page-intro {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.about-content .page-intro {
    margin-bottom: 20px;
}

.about-content h3 {
    color: var(--primary);
    font-size: 1.1rem;
    margin: 20px 0 8px;
}

/* ===== DAILY QUESTION ===== */
.daily-question {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 40px;
}

.daily-question h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.question-text {
    font-size: 1.1rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
}

.option-btn {
    padding: 12px 18px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.95rem;
    text-align: left;
    transition: all var(--transition);
    color: var(--text);
}

.option-btn:hover:not(.disabled) {
    border-color: var(--primary);
    background: rgba(91, 58, 41, 0.05);
}

.option-btn.correct {
    border-color: var(--success);
    background: var(--success-bg);
    color: var(--success);
    font-weight: 600;
}

.option-btn.incorrect {
    border-color: var(--error);
    background: var(--error-bg);
    color: var(--error);
}

.option-btn.disabled {
    cursor: default;
    opacity: 0.7;
}

.explanation {
    margin-top: 15px;
    padding: 15px;
    background: #F5F0E8;
    border-radius: var(--radius);
    border-left: 4px solid var(--accent);
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===== RANDOM BOOK ===== */
.random-book {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.random-book-info h3 {
    color: var(--primary);
    margin-bottom: 5px;
}

.random-book-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== PROGRESS SECTION ===== */
.progress-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 40px;
}

.progress-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
}

.progress-item {
    text-align: center;
    padding: 15px;
    background: var(--bg);
    border-radius: var(--radius);
}

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

.progress-item .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== BOOK CARDS (Quiz Selection) ===== */
.testament-section {
    margin-bottom: 40px;
}

.testament-title {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.book-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.book-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.book-card .book-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary);
}

.book-card .book-testament {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.book-card .book-questions {
    font-size: 0.85rem;
    color: var(--text-light);
}

.book-card .book-progress {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.book-card .book-progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    transition: width var(--transition);
}

.book-card .btn {
    align-self: flex-start;
}

/* ===== QUIZ PAGE ===== */
.quiz-header {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.quiz-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.quiz-book-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.quiz-timer {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.quiz-progress-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.quiz-progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.quiz-question-num {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.quiz-body {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.quiz-question {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    line-height: 1.5;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.quiz-option {
    padding: 14px 20px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1rem;
    text-align: left;
    transition: all var(--transition);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 12px;
}

.quiz-option .option-letter {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
    transition: all var(--transition);
}

.quiz-option:hover:not(.selected):not(.disabled) {
    border-color: var(--primary);
}

.quiz-option:hover:not(.selected):not(.disabled) .option-letter {
    background: var(--primary);
    color: #fff;
}

.quiz-option.selected {
    border-color: var(--primary);
    background: rgba(91, 58, 41, 0.08);
}

.quiz-option.selected .option-letter {
    background: var(--primary);
    color: #fff;
}

.quiz-option.correct {
    border-color: var(--success);
    background: var(--success-bg);
}

.quiz-option.correct .option-letter {
    background: var(--success);
    color: #fff;
}

.quiz-option.incorrect {
    border-color: var(--error);
    background: var(--error-bg);
}

.quiz-option.incorrect .option-letter {
    background: var(--error);
    color: #fff;
}

.quiz-option.disabled {
    cursor: default;
    pointer-events: none;
}

.quiz-explanation {
    padding: 15px;
    background: #F5F0E8;
    border-radius: var(--radius);
    border-left: 4px solid var(--accent);
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
    display: none;
}

.quiz-explanation.visible {
    display: block;
}

.quiz-nav {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== RESULT PAGE ===== */
.result-container {
    max-width: 600px;
    margin: 0 auto;
}

.result-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.result-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.result-title {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.result-message {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 25px;
}

.result-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 5px;
}

.result-score-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 25px;
}

.result-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.result-detail {
    padding: 15px;
    background: var(--bg);
    border-radius: var(--radius);
}

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

.result-detail .detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== RANKING PAGE ===== */
.ranking-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.ranking-table th {
    background: var(--primary);
    color: #fff;
    padding: 14px 20px;
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ranking-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.ranking-table tr:hover td {
    background: rgba(201,168,76,0.05);
}

.ranking-table tr:last-child td {
    border-bottom: none;
}

.ranking-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.ranking-badge.gold { background: #FFF3E0; color: #E65100; }
.ranking-badge.silver { background: #F5F5F5; color: #616161; }
.ranking-badge.bronze { background: #EFEBE9; color: #4E342E; }

/* ===== ABOUT PAGE ===== */
.about-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2 {
    color: var(--primary);
    margin-bottom: 15px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.about-content ul li {
    color: var(--text-light);
    margin-bottom: 8px;
    padding-left: 15px;
    position: relative;
}

.about-content ul li::before {
    content: '•';
    color: var(--accent);
    position: absolute;
    left: 0;
    font-weight: 700;
}

/* ===== FILTER BAR ===== */
.filter-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.filter-bar .search-input {
    flex: 1;
    min-width: 200px;
    padding: 10px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: var(--bg-card);
    color: var(--text);
    outline: none;
    transition: border-color var(--transition);
}

.filter-bar .search-input:focus {
    border-color: var(--accent);
}

/* ===== FOOTER ===== */
footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.7);
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 20px;
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    nav ul {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 10px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    }

    nav ul.open {
        display: flex;
    }

    nav ul li a {
        padding: 12px 20px;
        display: block;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .books-grid {
        grid-template-columns: 1fr;
    }

    .result-details {
        grid-template-columns: 1fr;
    }

    .random-book {
        flex-direction: column;
        text-align: center;
    }

    .quiz-header-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .ranking-table {
        font-size: 0.8rem;
    }

    .ranking-table th,
    .ranking-table td {
        padding: 10px 12px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card {
        padding: 15px 10px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .hero {
        padding: 30px 15px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .container {
        padding: 20px 12px;
    }

    .result-card {
        padding: 25px 15px;
    }

    .result-score {
        font-size: 2.5rem;
    }

    .btn {
        padding: 10px 24px;
        font-size: 0.9rem;
    }
}