/* ==========================================================================
   CHARTE GRAPHIQUE & DA : NL met Cyn
   Design: Fun, moderne, coloré, adapté aux ados de 3e secondaire
   ========================================================================== */

:root {
    --bg-main: #f8fafc;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --white: #ffffff;
    
    /* Couleurs thématiques */
    --primary-orange: #ff6b4a;
    --primary-blue: #3b82f6;
    --primary-green: #10b981;
    --primary-purple: #8b5cf6;
    --primary-red: #ef4444;
    --primary-teal: #06b6d4;
    --primary-indigo: #6366f1;
    --primary-pink: #ec4899;   
    --primary-amber: #f59e0b;

    /* Variantes claires pour les fonds de cartes */
    --bg-orange-light: #fff7ed;
    --bg-blue-light: #eff6ff;
    --bg-green-light: #ecfdf5;
    --bg-purple-light: #f5f3ff;
    --bg-red-light: #fef2f2;
    --bg-teal-light: #ecfeff;
    --bg-indigo-light: #e0e7ff;
    --bg-pink-light: #fce7f3;
    --bg-amber-light: #fef3c7;
    
    --font-site: 'Plus Jakarta Sans', system-ui, sans-serif;
}

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

body {
    font-family: var(--font-site);
    background-color: var(--bg-main);
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 16px;
    padding-bottom: 40px;
}

/* --- BANNIÈRE / HEADER --- */
.main-header {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: var(--white);
    padding: 45px 20px;
    text-align: center;
    border-bottom: 6px solid var(--primary-orange);
    border-radius: 0 0 24px 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header-container {
    max-width: 900px;
    margin: 0 auto;
}

.header-logo {
    display: inline-block;
    position: relative;
    margin-bottom: 12px;
}

.badge {
    background-color: var(--primary-orange);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.main-header h1 {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.main-header .highlight {
    color: #ffd166;
}

.header-subtitle {
    font-size: 1.15rem;
    opacity: 0.9;
    font-weight: 400;
    max-width: 600px;
    margin: 15px auto 0 auto;
}

/* --- CONTENU PRINCIPAL --- */
.main-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 30px 20px;
}

.welcome-section {
    background-color: var(--white);
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    text-align: center;
    margin-bottom: 40px;
    border: 2px dashed #cbd5e1;
}

.welcome-section h2 {
    color: #1e3a8a;
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.welcome-section p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 750px;
    margin: 0 auto;
}

/* --- GRILLE DES THÈMES (THEMA'S) --- */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Légèrement élargi pour 3 colonnes propres */
    gap: 25px;
    margin-bottom: 50px;
}

.theme-card {
    background-color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(0,0,0,0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 3px solid transparent;
    display: flex;
    flex-direction: column;
}

.theme-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.card-icon {
    font-size: 2.3rem;
    padding: 25px 20px 0 20px;
}

.card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.theme-number {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.8px;
    margin-bottom: 6px;
    display: block;
}

.card-body h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
    letter-spacing: -0.3px;
}

.card-body p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 25px;
    flex-grow: 1;
}

.theme-btn {
    display: inline-block;
    text-align: center;
    padding: 12px 18px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Variations de couleurs par carte */
.card-orange { background-color: var(--bg-orange-light); border-color: #ffe5d9; }
.card-orange .theme-number { color: var(--primary-orange); }
.card-orange .theme-btn { background-color: var(--primary-orange); color: var(--white); }
.card-orange .theme-btn:hover { background-color: #e55a39; }

.card-blue { background-color: var(--bg-blue-light); border-color: #dbeafe; }
.card-blue .theme-number { color: var(--primary-blue); }
.card-blue .theme-btn { background-color: var(--primary-blue); color: var(--white); }
.card-blue .theme-btn:hover { background-color: #2563eb; }

.card-green { background-color: var(--bg-green-light); border-color: #d1fae5; }
.card-green .theme-number { color: var(--primary-green); }
.card-green .theme-btn { background-color: var(--primary-green); color: var(--white); }
.card-green .theme-btn:hover { background-color: #059669; }

.card-purple { background-color: var(--bg-purple-light); border-color: #ede9fe; }
.card-purple .theme-number { color: var(--primary-purple); }
.card-purple .theme-btn { background-color: var(--primary-purple); color: var(--white); }
.card-purple .theme-btn:hover { background-color: #7c3aed; }

.card-red { background-color: var(--bg-red-light); border-color: #fee2e2; }
.card-red .theme-number { color: var(--primary-red); }
.card-red .theme-btn { background-color: var(--primary-red); color: var(--white); }
.card-red .theme-btn:hover { background-color: #dc2626; }

.card-teal { background-color: var(--bg-teal-light); border-color: #ccfbf1; }
.card-teal .theme-number { color: var(--primary-teal); }
.card-teal .theme-btn { background-color: var(--primary-teal); color: var(--white); }
.card-teal .theme-btn:hover { background-color: #0891b2; }

.card-indigo { background-color: var(--bg-indigo-light); border-color: #c7d2fe; }
.card-indigo .theme-number { color: var(--primary-indigo); }
.card-indigo .theme-btn { background-color: var(--primary-indigo); color: var(--white); }
.card-indigo .theme-btn:hover { background-color: #4f46e5; }

.card-pink { background-color: var(--bg-pink-light); border-color: #fbcfe8; }
.card-pink .theme-number { color: var(--primary-pink); }
.card-pink .theme-btn { background-color: var(--primary-pink); color: var(--white); }
.card-pink .theme-btn:hover { background-color: #db2777; }

.card-amber { background-color: var(--bg-amber-light); border-color: #fde68a; }
.card-amber .theme-number { color: var(--primary-amber); }
.card-amber .theme-btn { background-color: var(--primary-amber); color: var(--white); }
.card-amber .theme-btn:hover { background-color: #d97706; }

/* --- BOÎTE À OUTILS --- */
.toolkit-section {
    margin-bottom: 50px;
}

.toolkit-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toolkit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.toolkit-card {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e293b 100%);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.12);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 2px solid transparent;
}

.toolkit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(30, 58, 138, 0.18);
}

.toolkit-card.card-lexique {
    background: linear-gradient(135deg, #047857 0%, #059669 100%);
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.15);
}
.toolkit-card.card-lexique:hover {
    box-shadow: 0 12px 30px rgba(5, 150, 105, 0.22);
}

.toolkit-card.card-culture {
    background: linear-gradient(135deg, #9d174d 0%, #db2777 100%);
    box-shadow: 0 6px 20px rgba(219, 39, 119, 0.15);
}
.toolkit-card.card-culture:hover {
    box-shadow: 0 12px 30px rgba(219, 39, 119, 0.22);
}

.toolkit-card.card-revisions {
    background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.18);
}
.toolkit-card.card-revisions:hover {
    box-shadow: 0 12px 30px rgba(245, 158, 11, 0.25);
}

.toolkit-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    line-height: 1;
}

.toolkit-body {
    flex-grow: 1;
}

.toolkit-body h3 {
    color: #ffffff;
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.toolkit-body p {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.5;
}

.toolkit-btn {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: background 0.2s ease;
}

.toolkit-btn:hover {
    background: rgba(255,255,255,0.35);
}

/* --- FOOTER --- */
.main-footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid #e2e8f0;
}

/* --- AJUSTEMENTS MOBILES --- */
@media (max-width: 600px) {
    .main-header h1 {
        font-size: 2rem;
    }
    .themes-grid {
        grid-template-columns: 1fr;
    }
}