/* Styles personnalisés pour Puzzle Exchange - Design moderne */

/* Variables CSS avec palette de couleurs chaleureuses */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary-color: #f59e0b;
    --secondary-dark: #d97706;
    --success-color: #10b981;
    --success-dark: #059669;
    --danger-color: #ef4444;
    --danger-dark: #dc2626;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Ombres personnalisées */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Dégradés */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-dark: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    
    /* Thème clair par défaut */
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8fafc;
    --text-primary: #334155;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --card-bg: rgba(255, 255, 255, 0.9);
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --footer-bg: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* Thème sombre */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #475569;
    --card-bg: rgba(30, 41, 59, 0.9);
    --navbar-bg: rgba(15, 23, 42, 0.95);
    --footer-bg: linear-gradient(135deg, #020617 0%, #0f172a 100%);
    
    /* Couleurs adaptées pour le thème sombre */
    --gray-100: #0f172a;
    --gray-200: #1e293b;
    --gray-300: #334155;
    --gray-400: #475569;
    --gray-500: #64748b;
    --gray-600: #94a3b8;
    --gray-700: #cbd5e1;
    --gray-800: #e2e8f0;
    --gray-900: #f1f5f9;
    
    /* Ombres adaptées pour le thème sombre */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
}

/* Styles généraux */
body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

/* Navigation moderne */
.navbar {
    background: var(--navbar-bg) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.75rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    font-weight: 600;
    color: var(--text-secondary) !important;
    padding: 0.75rem 1.25rem !important;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background-color: var(--bg-tertiary);
    transform: translateY(-2px);
}

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    background-color: var(--primary-light);
}

/* Bouton de basculement de thème */
.theme-toggle {
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(180deg);
    box-shadow: var(--shadow-lg);
}

.theme-toggle .fa-sun {
    display: none;
}

.theme-toggle .fa-moon {
    display: block;
}

[data-theme="dark"] .theme-toggle .fa-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .fa-moon {
    display: none;
}

/* Cards modernes avec effets */
.card {
    border: none;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

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

.card-header {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
    color: var(--text-primary);
    padding: 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Boutons modernes avec effets */
.btn {
    border-radius: 0.75rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

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

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

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

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

.btn-outline-light {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Formulaires modernes */
.form-control, .form-select {
    border-radius: 0.75rem;
    border: 2px solid var(--border-color);
    padding: 0.875rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.form-control::placeholder {
    color: var(--text-muted);
}

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

/* Alertes modernes */
.alert {
    border: none;
    border-radius: 1rem;
    font-weight: 600;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
}

.alert-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: var(--danger-dark);
    border-left: 4px solid var(--danger-color);
}

.alert-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: var(--success-dark);
    border-left: 4px solid var(--success-color);
}

.alert-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, #cffafe 0%, #a5f3fc 100%);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}

/* Tableaux modernes */
.table {
    background: var(--card-bg);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table thead th {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-bottom: 2px solid var(--border-color);
    font-weight: 700;
    color: var(--text-primary);
    padding: 1.25rem 1rem;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.table tbody tr {
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    transform: scale(1.01);
}

.table tbody td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

/* Badges modernes */
.badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Pagination moderne */
.pagination .page-link {
    border-radius: 0.75rem;
    margin: 0 0.25rem;
    border: 2px solid var(--border-color);
    color: var(--primary-color);
    font-weight: 600;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    background: var(--card-bg);
}

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

.pagination .page-link:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Jumbotron moderne avec dégradé */
.jumbotron {
    background: var(--gradient-primary);
    border-radius: 2rem;
    padding: 4rem 3rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.jumbotron::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.jumbotron h1 {
    font-weight: 800;
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.jumbotron .lead {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Statistiques avec cartes modernes */
.stats-card {
    text-align: center;
    padding: 2.5rem 2rem;
    border-radius: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.stats-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.stats-card .fa-3x {
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-card h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stats-card p {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

/* Icônes avec effets */
.fa-3x {
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.stats-card:hover .fa-3x {
    transform: scale(1.1) rotate(5deg);
}

/* Responsive amélioré */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.75rem;
    }
    
    .btn + .btn {
        margin-left: 0;
    }
    
    .jumbotron {
        padding: 2rem 1.5rem;
        text-align: center;
    }
    
    .jumbotron h1 {
        font-size: 2.5rem;
    }
    
    .stats-card {
        padding: 2rem 1.5rem;
        margin-bottom: 1.5rem;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* Footer moderne */
footer {
    margin-top: auto;
    background: var(--footer-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 3rem 0 2rem;
}

footer h5, footer h6 {
    color: white;
    font-weight: 700;
}

footer .hover-text-white:hover {
    color: white !important;
    transform: translateY(-2px);
}

footer a {
    transition: all 0.3s ease;
}

footer a:hover {
    transform: translateY(-2px);
}

footer .input-group .form-control {
    border-radius: 0.75rem 0 0 0.75rem;
    border: 2px solid var(--gray-600);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
}

footer .input-group .form-control::placeholder {
    color: var(--gray-400);
}

footer .input-group .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: rgba(255, 255, 255, 0.15);
}

footer .input-group .btn {
    border-radius: 0 0.75rem 0.75rem 0;
    border: 2px solid var(--primary-color);
}

footer hr {
    border-color: var(--gray-700);
    opacity: 0.5;
}

/* Sidebar admin moderne */
.admin-sidebar {
    background: linear-gradient(180deg, var(--gray-800) 0%, var(--gray-900) 100%);
    min-height: 100vh;
    padding: 2rem 0;
    box-shadow: var(--shadow-xl);
}

.admin-sidebar .nav-link {
    color: var(--gray-300);
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    margin: 0.25rem 1rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-light);
    transform: translateX(5px);
}

/* Dashboard cards modernes */
.dashboard-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

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

/* Puzzle grid moderne */
.puzzle-grid .card {
    height: 100%;
    display: flex;
    flex-direction: column;
    border-radius: 1.5rem;
}

.puzzle-grid .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.puzzle-grid .card-text {
    flex: 1;
    color: var(--text-secondary);
}

.puzzle-grid .btn {
    margin-top: auto;
    border-radius: 0.75rem;
}

/* Search filters modernes */
.search-filters {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

/* User profile moderne */
.profile-header {
    background: var(--gradient-primary);
    color: white;
    padding: 3rem 2rem;
    border-radius: 2rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.profile-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain2" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain2)"/></svg>');
    opacity: 0.2;
}

.profile-stats {
    display: flex;
    justify-content: space-around;
    text-align: center;
    margin-top: 2rem;
}

.profile-stat {
    flex: 1;
}

.profile-stat .number {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.profile-stat .label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Exchange status badges modernes */
.status-badge {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-propose { 
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
}
.status-accepte { 
    background: linear-gradient(135deg, #cffafe 0%, #a5f3fc 100%);
    color: #0e7490;
}
.status-en_cours { 
    background: linear-gradient(135deg, #dbeafe 0%, #93c5fd 100%);
    color: #1e40af;
}
.status-termine { 
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
}
.status-annule { 
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
}

/* Loading spinner moderne */
.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Effets de survol supplémentaires */
.card:hover .card-img-top {
    transform: scale(1.05);
}

.card-img-top {
    transition: transform 0.3s ease;
}

/* Boutons de navigation spéciaux */
.nav-pills .nav-link {
    border-radius: 0.75rem;
    margin: 0.25rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

/* Effets de focus améliorés */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Transitions globales */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* Footer moderne avec effets de survol */
footer {
    margin-top: auto;
    background: var(--footer-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 3rem 0 2rem;
}

footer h5, footer h6 {
    color: white;
    font-weight: 700;
}

footer .hover-text-white:hover {
    color: white !important;
    transform: translateY(-2px);
}

footer a {
    transition: all 0.3s ease;
}

footer a:hover {
    transform: translateY(-2px);
}

footer .input-group .form-control {
    border-radius: 0.75rem 0 0 0.75rem;
    border: 2px solid var(--gray-600);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
}

footer .input-group .form-control::placeholder {
    color: var(--gray-400);
}

footer .input-group .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: rgba(255, 255, 255, 0.15);
}

footer .input-group .btn {
    border-radius: 0 0.75rem 0.75rem 0;
    border: 2px solid var(--primary-color);
}

footer hr {
    border-color: var(--gray-700);
    opacity: 0.5;
}

/* Effets de survol pour les cartes de fonctionnalités */
.card .bg-gradient {
    transition: all 0.3s ease;
}

.card:hover .bg-gradient {
    transform: scale(1.1);
}

/* Amélioration des badges */
.badge.bg-primary {
    background: var(--gradient-primary) !important;
}

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

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

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

/* Effets de survol pour les icônes sociales */
footer .fab {
    transition: all 0.3s ease;
}

footer .fab:hover {
    transform: scale(1.2) rotate(5deg);
}

/* Amélioration de la navigation */
.navbar-nav .nav-link.active {
    background: var(--gradient-primary);
    color: white !important;
    box-shadow: var(--shadow-md);
}

/* Effets de survol pour les boutons de navigation */
.navbar-nav .nav-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Amélioration des cartes de puzzles */
.puzzle-grid .card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.puzzle-grid .card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

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

/* Amélioration des boutons d'action */
.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Amélioration des formulaires de recherche */
.search-filters .form-control:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Effets de chargement et animations */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Amélioration des tableaux de données */
.table-responsive {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* Effets de survol pour les liens du footer */
footer ul li a {
    position: relative;
    transition: all 0.3s ease;
}

footer ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

footer ul li a:hover::after {
    width: 100%;
}

/* Amélioration des boutons de pagination */
.pagination .page-link:focus {
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

/* Effets de survol pour les cartes de statistiques */
.stats-card:hover .fa-3x {
    animation: bounce 0.6s ease;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Amélioration de la responsivité */
@media (max-width: 576px) {
    .jumbotron {
        padding: 2rem 1rem;
    }
    
    .jumbotron h1 {
        font-size: 2rem;
    }
    
    .stats-card {
        padding: 1.5rem 1rem;
    }
    
    .stats-card h3 {
        font-size: 2rem;
    }
    
    footer {
        padding: 2rem 0 1rem;
    }
    
    footer .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* Effets de profondeur pour les cartes */
.card {
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card:hover::before {
    opacity: 1;
}

/* Amélioration des boutons de navigation mobile */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--navbar-bg);
        backdrop-filter: blur(10px);
        border-radius: 1rem;
        padding: 1rem;
        margin-top: 1rem;
        box-shadow: var(--shadow-lg);
    }
    
    .navbar-nav .nav-link {
        margin: 0.25rem 0;
        padding: 0.75rem 1rem;
        border-radius: 0.75rem;
    }
    
    .navbar-nav .nav-link:hover {
        background: var(--bg-tertiary);
        transform: translateX(5px);
    }
}

/* Styles spécifiques pour le thème sombre */
[data-theme="dark"] .card::before {
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
}

[data-theme="dark"] .navbar-collapse {
    background: rgba(15, 23, 42, 0.98);
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--text-muted);
}

/* Transition fluide entre les thèmes */
body, .navbar, .card, .form-control, .table, .stats-card, .dashboard-card, .search-filters {
    transition: all 0.3s ease;
}

/* Styles personnalisés pour les accordéons - Correction du contraste */
.accordion-button {
    color: var(--text-primary) !important;
    background-color: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
}

.accordion-button:not(.collapsed) {
    color: var(--primary-color) !important;
    background-color: var(--bg-tertiary) !important;
    border-color: var(--primary-color) !important;
    box-shadow: var(--shadow-sm) !important;
}

.accordion-button:hover {
    background-color: var(--bg-tertiary) !important;
    color: var(--primary-color) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-md) !important;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(99, 102, 241, 0.25) !important;
    border-color: var(--primary-color) !important;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23666'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e") !important;
    transition: transform 0.3s ease !important;
}

.accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236366f1'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e") !important;
    transform: rotate(-180deg) !important;
}

.accordion-item {
    border: 1px solid var(--border-color) !important;
    border-radius: 0.75rem !important;
    margin-bottom: 1rem !important;
    overflow: hidden !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all 0.3s ease !important;
}

.accordion-item:hover {
    box-shadow: var(--shadow-md) !important;
    transform: translateY(-2px) !important;
}

.accordion-body {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    padding: 1.5rem !important;
    border-top: 1px solid var(--border-color) !important;
}

.accordion-body p {
    color: var(--text-primary) !important;
    margin-bottom: 1rem !important;
}

.accordion-body ul, .accordion-body ol {
    color: var(--text-primary) !important;
    margin-bottom: 1rem !important;
}

.accordion-body li {
    color: var(--text-primary) !important;
    margin-bottom: 0.5rem !important;
}

.accordion-body strong {
    color: var(--primary-color) !important;
    font-weight: 600 !important;
}

.accordion-body h6 {
    color: var(--text-primary) !important;
    font-weight: 600 !important;
    margin-top: 1rem !important;
    margin-bottom: 0.5rem !important;
}

.accordion-body .text-muted {
    color: var(--text-muted) !important;
}

/* Styles pour le thème sombre */
[data-theme="dark"] .accordion-button {
    color: var(--text-primary) !important;
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .accordion-button:not(.collapsed) {
    color: var(--primary-light) !important;
    background-color: var(--bg-tertiary) !important;
    border-color: var(--primary-light) !important;
}

[data-theme="dark"] .accordion-button:hover {
    background-color: var(--bg-tertiary) !important;
    color: var(--primary-light) !important;
}

[data-theme="dark"] .accordion-body {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .accordion-body strong {
    color: var(--primary-light) !important;
}