/* Styles personnalisés pour Crypto Tracker */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.15s ease-in-out;
}

/* Layout général */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f5f6fa;
    color: #2c3e50;
    line-height: 1.6;
}

.container-fluid {
    max-width: 1400px;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    border-radius: var(--border-radius);
}

.navbar-nav .nav-link.active {
    background-color: rgba(255,255,255,0.2);
    border-radius: var(--border-radius);
}

/* Navbar: ouverture des sous-menus au survol (desktop uniquement) */
@media (min-width: 992px) {
    .navbar .dropdown:hover .dropdown-menu {
        display: block;
        margin-top: 0;
    }
    .navbar .dropdown-toggle:after {
        transition: transform .15s ease;
    }
    .navbar .dropdown:hover .dropdown-toggle:after {
        transform: rotate(180deg);
    }
}

/* Cards */
.card {
    border: none;
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom: none;
    font-weight: 600;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
}

.card-header h1, .card-header h2, .card-header h3,
.card-header h4, .card-header h5, .card-header h6 {
    color: white;
    margin-bottom: 0;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: #6c757d;
    background-color: var(--light-color);
}

.table td {
    vertical-align: middle;
    border-color: #e9ecef;
}

.table-hover tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

/* Cryptomonnaies */
.crypto-logo {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 0.75rem;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.crypto-symbol {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Variations de prix */
.positive {
    color: var(--success-color) !important;
    font-weight: 600;
}

.positive::before {
    content: '▲ ';
    font-size: 0.8em;
}

.negative {
    color: var(--danger-color) !important;
    font-weight: 600;
}

.negative::before {
    content: '▼ ';
    font-size: 0.8em;
}

/* Badges de statut */
.badge {
    font-size: 0.75em;
    padding: 0.5em 0.75em;
    border-radius: 0.5rem;
}

.badge-status {
    font-size: 0.7em;
    padding: 0.35em 0.65em;
}

/* Boutons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border-width: 1px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border: none;
}

.btn-danger {
    background: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
    border: none;
}

.btn-warning {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border: none;
}

.btn-info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border: none;
}

/* Groupes de boutons */
.btn-group-sm > .btn, .btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border-radius: calc(var(--border-radius) * 0.8);
}

/* Formulaires */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 1px solid #d1d3e2;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Select2 customization */
.select2-container--default .select2-selection--single {
    height: 38px;
    border: 1px solid #d1d3e2;
    border-radius: var(--border-radius);
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 36px;
    color: #495057;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 36px;
}

.select2-dropdown {
    border: 1px solid #d1d3e2;
    border-radius: var(--border-radius);
}

/* Alertes */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-primary {
    border-left-color: var(--primary-color);
}

.alert-success {
    border-left-color: var(--success-color);
}

.alert-danger {
    border-left-color: var(--danger-color);
}

.alert-warning {
    border-left-color: var(--warning-color);
}

.alert-info {
    border-left-color: var(--info-color);
}

/* Pagination */
.pagination {
    margin-bottom: 0;
}

.page-link {
    border-radius: var(--border-radius);
    margin: 0 2px;
    border: 1px solid #d1d3e2;
    color: var(--primary-color);
    transition: var(--transition);
}

.page-link:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

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

/* Graphiques */
.chart-container {
    position: relative;
    height: 400px;
    width: 100%;
}

.chart-container canvas {
    border-radius: var(--border-radius);
}

/* Statistiques */
.stats-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--box-shadow);
}

.stats-card h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-card p {
    margin-bottom: 0;
    opacity: 0.9;
}

/* Loading states */
.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 #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Footer */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    margin-top: 3rem;
}

footer a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
}

footer a:hover {
    color: white;
}

/* Tabs */
.nav-tabs {
    border-bottom: 2px solid #e9ecef;
}

.nav-tabs .nav-link {
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    color: #6c757d;
    font-weight: 500;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: var(--primary-color);
}

.nav-tabs .nav-link.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .container-fluid {
        padding: 0.5rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .crypto-logo {
        width: 24px;
        height: 24px;
    }
    
    .btn-group-sm > .btn, .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
    
    .chart-container {
        height: 300px;
    }
    
    .stats-card h3 {
        font-size: 2rem;
    }
    
    .navbar-nav {
        margin-top: 0.5rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 0.75rem;
    }
}

@media (max-width: 576px) {
    .crypto-logo {
        width: 20px;
        height: 20px;
        margin-right: 0.5rem;
    }
    
    .btn-group {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .btn-group .btn {
        margin-bottom: 0;
    }
    
    .chart-container {
        height: 250px;
    }
    
    .table th, .table td {
        padding: 0.5rem 0.25rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* Utilitaires */
.text-price {
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

.border-gradient {
    border: 2px solid;
    border-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%) 1;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-gradient-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.bg-gradient-danger {
    background: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
}

.shadow-sm {
    box-shadow: var(--box-shadow);
}

.shadow {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* Print styles */
@media print {
    .navbar, footer, .btn, .pagination {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .table {
        font-size: 0.8rem;
    }
    
    .positive, .negative {
        color: #000 !important;
    }
}