/* Design moderne avec dark mode et animations fluides */
:root {
    --primary: #667eea;
    --primary-dark: #5a6fd8;
    --secondary: #764ba2;
    --accent: #f093fb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --border-color: #e2e8f0;
    --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);
    --card-bg: #ffffff;
    --link-color: #3498db;
    --muted-bg: #f8f9fa;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --card-bg: #1e293b;
    --link-color: #60a5fa;
    --muted-bg: #334155;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    min-height: 100vh;
    transition: all 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header moderne */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
}

[data-theme="dark"] header {
    background: rgba(15, 23, 42, 0.95);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text; /* standard fallback */
    -webkit-text-fill-color: transparent;
    color: transparent; /* standard fallback for text fill */
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.theme-toggle:hover {
    transform: rotate(180deg);
    box-shadow: var(--shadow-md);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.75rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Cartes */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Grille galeries */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.gallery-card {
    background: var(--bg-primary);
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    position: relative;
}

.gallery-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.gallery-image {
    height: 250px;
    overflow: hidden;
    position: relative;
    background: var(--bg-secondary);
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-card:hover .gallery-image img {
    transform: scale(1.1);
}

.gallery-info {
    padding: 1.5rem;
}

.gallery-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.gallery-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    display: box; /* fallback */
    -webkit-line-clamp: 2;
    line-clamp: 2; /* non-standard but supported in some browsers */
    -webkit-box-orient: vertical;
    box-orient: vertical; /* fallback */
    overflow: hidden;
}

.gallery-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.photo-count {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Grille photos */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2rem 0;
}

.photo-item {
    position: relative;
    background: var(--bg-primary);
    border-radius: 1rem;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    aspect-ratio: 4/3;
}

.photo-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.photo-item:hover img {
    transform: scale(1.05);
}

/* Messages */
.message {
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    margin: 1rem 0;
    border-left: 4px solid;
}

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

.message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: var(--danger);
}

/* Formulaires */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .photos-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .photos-grid {
        grid-template-columns: 1fr;
    }
}

/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
    padding: 3rem 0 1rem;
}

.no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Styles pour le formulaire de tri (index) */
.sort-form {
    margin: 1rem 0;
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
    background: rgba(255,255,255,0.06);
    padding: 0.35rem;
    border-radius: 999px;
    border: 1px solid rgba(0,0,0,0.04);
    box-shadow: 0 2px 8px rgba(16,24,40,0.03);
}

.sort-form label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-right: 0.25rem;
}

.sort-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.45rem 0.75rem;
    border-radius: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    min-width: 110px;
    padding-right: 2.2rem; /* espace pour la flèche */
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
    background-size: 0.9rem;
    /* petite flèche SVG (noir) */
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23475469'><path d='M5.23 7.21a.75.75 0 011.06.02L10 11.293l3.71-4.06a.75.75 0 111.1 1.02l-4.25 4.656a.75.75 0 01-1.08 0L5.21 8.25a.75.75 0 01.02-1.04z'/></svg>");
}

.sort-select:focus {
    outline: none;
    box-shadow: 0 4px 12px rgba(102,126,234,0.12);
    border-color: var(--primary);
}

/* Mode sombre: ajuster contrastes pour les contrôles de tri */
[data-theme="dark"] .sort-form {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.04);
}

[data-theme="dark"] .sort-select {
    background: var(--bg-secondary) no-repeat right 0.6rem center / 0.9rem;
    color: var(--text-primary);
    border: 1px solid rgba(255,255,255,0.06);
    /* flèche claire en background (data-uri SVG) */
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23cbd5e1'><path d='M5.23 7.21a.75.75 0 011.06.02L10 11.293l3.71-4.06a.75.75 0 111.1 1.02l-4.25 4.656a.75.75 0 01-1.08 0L5.21 8.25a.75.75 0 01.02-1.04z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
    background-size: 0.9rem;
    padding-right: 2.2rem; /* espace pour l'icône */
}

/* Masquer tout SVG inline dans les contrôles de tri en mode sombre pour éviter duplication */
[data-theme="dark"] .sort-form svg,
[data-theme="dark"] .sort-select svg,
[data-theme="dark"] .sort-form .icon,
[data-theme="dark"] .sort-select .icon {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
    pointer-events: none !important;
}

[data-theme="dark"] .sort-form label {
    color: var(--text-secondary);
}

.sort-btn {
    padding: 0.45rem 0.9rem;
    border-radius: 0.7rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.sort-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Styles extraits de index.php (hero, petits éléments d'interface) */

.stats-mini {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.gallery-link {
    text-decoration: none;
    color: inherit;
}
.gallery-date {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.login-container {
    max-width: 400px;
    margin: 5rem auto;
    background: var(--card-bg, #ffffff);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.06);
}

/* Environnements sombre/claire : ajuster via variables */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    color: var(--text-primary, #2c3e50);
    margin-bottom: 0.5rem;
}

.back-to-site {
    text-align: center;
    margin-top: 1rem;
}

.back-to-site a {
    color: var(--link-color, #3498db);
    text-decoration: none;
    font-size: 0.9rem;
}

.back-to-site a:hover {
    text-decoration: underline;
}

/* Optionnel : style du bloc d'information */
.login-container .info-box {
    margin-top: 2rem;
    padding: 1rem;
    background: var(--muted-bg, #f8f9fa);
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--text-secondary, #666);
}
        .gallery-header-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 3rem 0;
            margin-bottom: 2rem;
        }
        .back-link {
            color: white;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
            opacity: 0.9;
            transition: opacity 0.3s;
        }
        .back-link:hover {
            opacity: 1;
        }
        .photo-title {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            padding: 2rem 1rem 1rem;
            font-weight: 600;
            text-align: center;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
        }
        .photo-item:hover .photo-title {
            opacity: 1;
            transform: translateY(0);
        }
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.95);
        }
        .modal-content {
            position: relative;
            margin: auto;
            width: 90%;
            max-width: 90vw;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .modal-content img {
            max-width: 100%;
            max-height: 90vh;
            object-fit: contain;
            border-radius: 0.5rem;
        }
        .close {
            position: absolute;
            top: 20px;
            right: 35px;
            color: #f1f1f1;
            font-size: 40px;
            font-weight: bold;
            cursor: pointer;
            z-index: 1001;
        }
        .close:hover {
            color: #3498db;
        }
        .modal-nav {
            position: absolute;
            top: 50%;
            width: 100%;
            display: flex;
            justify-content: space-between;
            padding: 0 20px;
            transform: translateY(-50%);
            pointer-events: none;
        }
        .modal-nav button {
            background: rgba(255, 255, 255, 0.9);
            color: #333;
            border: none;
            padding: 15px 20px;
            font-size: 20px;
            cursor: pointer;
            border-radius: 50%;
            pointer-events: all;
            transition: background 0.3s ease;
        }
        .modal-nav button:hover {
            background: white;
        }
        .modal-nav button:disabled {
            opacity: 0.3;
            cursor: not-allowed;
        }