/* ========================================
   MATHSETMOI.FR - COMPOSANTS
   Fichier : styles/components.css
   Version : 2.0 - Optimisé mobile
   ======================================== */

/* ==================== LEVEL CARDS (pour niveaux 6e, 5e, etc.) ==================== */
.level-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    cursor: pointer;
    text-align: center;
}

.level-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.level-card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.level-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.level-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

/* ==================== RESOURCE CARDS (cours, exercices) ==================== */
.resource-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
    cursor: pointer;
}

.resource-card:hover {
    transform: translateY(-3px);
}

.resource-thumbnail {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
}

.resource-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.resource-content {
    padding: var(--spacing-lg);
}

.resource-content h4 {
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.resource-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.resource-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-lighter);
    flex-wrap: wrap;
}

.resource-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ==================== SIMPLE CARDS (outils, liens) ==================== */
.simple-card {
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.simple-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.simple-card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.simple-card-title {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.simple-card-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ==================== PHOTO CARDS (galerie cahiers) ==================== */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.photo-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1;
    background: var(--border-color);
    transition: transform var(--transition-normal);
}

.photo-card:hover {
    transform: scale(1.02);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--white);
    padding: var(--spacing-md);
    font-size: 0.85rem;
}

.photo-overlay strong {
    display: block;
    margin-bottom: 0.25rem;
}

.photo-overlay small {
    opacity: 0.9;
}

.photo-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
}

.photo-meta span {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

/* ==================== RESOURCE ITEMS (liste exercices) ==================== */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.resource-item {
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.resource-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.resource-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.resource-title {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.resource-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ==================== CHAPTER NAVIGATION ==================== */
.chapter-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: var(--spacing-2xl) var(--spacing-xl);
    text-align: center;
}

.chapter-hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.chapter-hero p {
    font-size: 1.1rem;
    opacity: 0.95;
    color: var(--white);
}

.chapter-meta {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.meta-item {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
}

.chapter-nav {
    background: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: wrap;
}

.nav-btn {
    padding: 0.7rem 1.5rem;
    border: none;
    background: #f0f0f0;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.nav-btn:hover,
.nav-btn.active {
    background: var(--primary-color);
    color: var(--white);
}

.chapter-footer {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--border-color);
    gap: var(--spacing-md);
}

/* ==================== BREADCRUMB ==================== */
.header-breadcrumb {
    background: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.breadcrumb {
    max-width: var(--max-width-content);
    margin: 0 auto;
    color: var(--text-light);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ==================== BADGES ==================== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
}

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

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

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

.badge-info {
    background: var(--info-color);
    color: var(--white);
}

.badge-light {
    background: #f0f0f0;
    color: var(--primary-color);
}

/* ==================== ALERTS ==================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background: #f0fdf4;
    border-color: var(--success-color);
    color: #065f46;
}

.alert-warning {
    background: #fffbeb;
    border-color: var(--warning-color);
    color: #92400e;
}

.alert-error {
    background: #fef2f2;
    border-color: var(--error-color);
    color: #991b1b;
}

.alert-info {
    background: #eff6ff;
    border-color: var(--info-color);
    color: #1e40af;
}

/* ==================== LOADING ==================== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* ==================== MODALS ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
}

.modal-close {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
}

.modal-close:hover {
    color: var(--text-color);
}

/* ==================== TABS ==================== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.tab {
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
}

.tab:hover {
    background: #f8f9fa;
}

.tab.active {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

/* ==================== TOOLTIPS ==================== */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip-text {
    visibility: hidden;
    background-color: var(--text-color);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--transition-fast);
    font-size: 0.85rem;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* ==================== RESPONSIVE COMPONENTS ==================== */
@media screen and (max-width: 768px) {
    .chapter-hero h1 {
        font-size: 1.8rem;
    }
    
    .chapter-nav {
        overflow-x: auto;
        justify-content: flex-start;
    }
    
    .chapter-footer {
        flex-direction: column;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .photo-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 480px) {
    .resource-thumbnail {
        height: 150px;
    }
    
    .chapter-meta {
        gap: var(--spacing-sm);
    }
    
    .meta-item {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
}