/* Style personnalisé pour Codigi212 OFPPT */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --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);
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #0d6efd 0%, #0056b3 100%);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
}

/* Navigation */
.navbar-brand img {
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.1);
}

.navbar-nav .nav-link {
    transition: color 0.3s ease;
    font-weight: 500;
}

.navbar-nav .nav-link:hover {
    color: #fff !important;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background: var(--light-color);
    border-bottom: 1px solid #dee2e6;
    font-weight: 600;
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #0056b3;
    border-color: #0056b3;
    transform: translateY(-2px);
}

.btn-outline-primary:hover {
    transform: translateY(-2px);
}

/* Document Cards */
.document-card {
    border-left: 4px solid var(--primary-color);
}

.document-card.examen {
    border-left-color: var(--danger-color);
}

.document-card.module {
    border-left-color: var(--primary-color);
}

.document-card.exercice {
    border-left-color: var(--success-color);
}

.document-card.corrige {
    border-left-color: var(--warning-color);
}

/* Badges */
.badge {
    font-size: 0.75em;
    font-weight: 500;
}

.badge-examen {
    background-color: var(--danger-color);
}

.badge-module {
    background-color: var(--primary-color);
}

.badge-exercice {
    background-color: var(--success-color);
}

.badge-corrige {
    background-color: var(--warning-color);
}

/* Search */
.search-container {
    position: relative;
}

.search-input {
    border-radius: 50px;
    padding-left: 3rem;
    border: 2px solid #e9ecef;
    transition: border-color 0.3s ease;
}

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

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-left: 4px solid var(--primary-color);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stats-label {
    color: var(--secondary-color);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

/* Article Cards */
.article-card {
    overflow: hidden;
}

.article-card .card-img-top {
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.article-meta {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

/* Admin Panel */
.admin-sidebar {
    background: var(--dark-color);
    min-height: 100vh;
}

.admin-sidebar .nav-link {
    color: #adb5bd;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.25rem;
    transition: all 0.3s ease;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    background: var(--primary-color);
    color: #fff;
}

.admin-sidebar .nav-link i {
    width: 20px;
    margin-right: 0.5rem;
}

/* Forms */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #ced4da;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.form-label {
    font-weight: 500;
    color: var(--dark-color);
}

/* Tables */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead th {
    background: var(--light-color);
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    color: var(--dark-color);
}

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

/* Pagination */
.pagination .page-link {
    border-radius: var(--border-radius);
    margin: 0 0.125rem;
    border: 1px solid #dee2e6;
    color: var(--primary-color);
}

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

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

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    border: none;
    font-weight: 500;
}

.alert-dismissible .btn-close {
    padding: 0.75rem 1rem;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #212529 0%, #343a40 100%);
}

footer a:hover {
    color: var(--primary-color) !important;
    transition: color 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-number {
        font-size: 2rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .navbar-brand span {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .stats-number {
        font-size: 1.75rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-sm-hover:hover {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

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

.border-start-primary {
    border-left: 4px solid var(--primary-color) !important;
}

.border-start-success {
    border-left: 4px solid var(--success-color) !important;
}

.border-start-danger {
    border-left: 4px solid var(--danger-color) !important;
}

.border-start-warning {
    border-left: 4px solid var(--warning-color) !important;
}