/* ========================================
   CASE Frontend - Categories Page Styles
   ======================================== */

/* Categories Hero */
.categories-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.categories-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    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="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.categories-hero .hero-content {
    position: relative;
    z-index: 2;
}

/* Category Cards */
.category-card {
    background: white;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    height: 100%;
}

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

.category-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 123, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.category-card:hover .category-overlay {
    opacity: 1;
}

.category-actions {
    display: flex;
    gap: var(--spacing-md);
}

.category-link,
.category-info-btn {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    text-decoration: none;
    border: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.category-link:hover,
.category-info-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

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

.category-header {
    margin-bottom: var(--spacing-md);
}

.category-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

.category-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.category-posts-count {
    font-size: var(--font-size-sm);
    color: var(--secondary-color);
    display: flex;
    align-items: center;
}

.category-description {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.category-btn {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
}

.category-btn:hover {
    color: var(--primary-dark);
}

/* Category Modal */
.category-stats {
    margin-top: var(--spacing-lg);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.stat-item i {
    width: 20px;
    text-align: center;
}

.recent-posts {
    margin-top: var(--spacing-md);
}

.recent-post-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.recent-post-item:last-child {
    border-bottom: none;
}

.post-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.post-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin: 0;
}

.post-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.post-title a:hover {
    color: var(--primary-color);
}

/* Featured Posts */
.featured-posts-section {
    background: var(--light-color);
}

.post-card {
    background: white;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
}

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

.post-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.post-placeholder {
    width: 100%;
    height: 100%;
    background: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    color: var(--secondary-color);
}

.post-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
}

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

.post-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--secondary-color);
}

.post-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.post-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.post-title a:hover {
    color: var(--primary-color);
}

.post-excerpt {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.post-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
}

.post-link:hover {
    color: var(--primary-dark);
}

/* Statistics Section */
.stats-section {
    background: white;
}

.stat-card {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.stat-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: white;
    font-size: var(--font-size-2xl);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--secondary-color);
    font-weight: 500;
    margin: 0;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--secondary-color);
}

.empty-state i {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.empty-state p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .category-image {
        height: 150px;
    }
    
    .category-content {
        padding: var(--spacing-md);
    }
    
    .category-title {
        font-size: var(--font-size-lg);
    }
    
    .stat-card {
        padding: var(--spacing-lg);
    }
    
    .stat-icon {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-xl);
    }
    
    .stat-number {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 576px) {
    .category-actions {
        gap: var(--spacing-sm);
    }
    
    .category-link,
    .category-info-btn {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-sm);
    }
    
    .post-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
}