/* ====================================
   CATEGORIES PAGE - STYLES
   ==================================== */

/* Page Header */
.page-header {
    position: relative;
    padding: 100px 0 80px;
    background: linear-gradient(135deg, #1a237e 0%, #3f51b5 100%);
    overflow: hidden;
}

.page-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url(../images/Mechatronics_blog.png);
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 0;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.95) 0%, rgba(63, 81, 181, 0.9) 100%);
    z-index: 1;
}

.page-header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb a:hover {
    color: #e3f2fd;
}

.breadcrumb i {
    font-size: 0.8rem;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.page-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
}

/* Categories Page Section */
.categories-page-section {
    padding: 80px 0;
    background: #f8f9fa;
}

/* Filter Bar */
.categories-filter-bar {
    background: white;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
    box-shadow: 0 4px 20px rgba(26, 35, 126, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.filter-search {
    flex: 1;
    min-width: 280px;
    position: relative;
    display: flex;
    align-items: center;
}

.filter-search i {
    position: absolute;
    left: 16px;
    color: var(--text-light);
    font-size: 1.1rem;
}

[dir="rtl"] .filter-search i {
    left: auto;
    right: 16px;
}

.filter-search-input {
    width: 100%;
    padding: 14px 20px 14px 48px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    background: #fafafa;
}

[dir="rtl"] .filter-search-input {
    padding: 14px 48px 14px 20px;
}

.filter-search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: white;
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.filter-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.view-toggle {
    display: flex;
    gap: 8px;
    background: #f5f5f5;
    padding: 4px;
    border-radius: 8px;
}

.view-btn {
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    border-radius: 6px;
    transition: var(--transition);
    font-size: 1.1rem;
}

.view-btn:hover {
    background: rgba(26, 35, 126, 0.1);
    color: var(--primary-blue);
}

.view-btn.active {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 2px 8px rgba(26, 35, 126, 0.3);
}

.sort-select {
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    background: white;
    color: var(--text-dark);
    min-width: 180px;
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* Categories Stats */
.categories-stats {
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: white;
    padding: 16px 24px;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    font-weight: 600;
    color: var(--primary-navy);
}

.stat-item i {
    font-size: 1.4rem;
    color: var(--primary-blue);
}

/* Loading State */
.categories-loading {
    text-align: center;
    padding: 80px 20px;
}

.spinner-large {
    width: 60px;
    height: 60px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 24px;
}

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

.categories-loading p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* Empty State */
.empty-state-large {
    text-align: center;
    padding: 80px 20px;
}

.empty-state-large i {
    font-size: 5rem;
    color: var(--text-light);
    opacity: 0.5;
    margin-bottom: 24px;
}

.empty-state-large h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.empty-state-large p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 32px;
}

.btn-reset {
    padding: 14px 32px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-reset:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 35, 126, 0.3);
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.categories-grid.list {
    grid-template-columns: 1fr;
}

/* Category Card */
.category-card-page {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(26, 35, 126, 0.1);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.category-card-page:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(26, 35, 126, 0.2);
}

.category-card-page.list-view {
    flex-direction: row;
    height: auto;
}

.category-image-wrapper {
    position: relative;
    flex-shrink: 0;
}

.category-image-page {
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.category-card-page.list-view .category-image-page {
    width: 280px;
    height: 100%;
    min-height: 200px;
}

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

.category-card-page:hover .category-image-page img {
    transform: scale(1.1);
}

.category-image-page i {
    font-size: 5rem;
    color: var(--primary-navy);
    opacity: 0.3;
    display: none;
}

.subcategory-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--primary-blue);
    color: white;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

[dir="rtl"] .subcategory-badge {
    right: auto;
    left: 16px;
}

.category-content-page {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.category-name-page {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: 12px;
    transition: var(--transition);
}

.category-card-page:hover .category-name-page {
    color: var(--primary-blue);
}

.category-description-page {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.category-card-page.list-view .category-description-page {
    -webkit-line-clamp: 2;
}

/* Subcategories Preview */
.subcategories-preview {
    margin-bottom: 20px;
}

.subcategory-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.subcategory-tag {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.subcategory-tag:hover {
    background: var(--primary-blue);
    color: white;
}

.subcategory-tag.more {
    background: var(--primary-navy);
    color: white;
}

.category-footer-page {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.explore-btn {
    width: 100%;
    padding: 14px 24px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.explore-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 35, 126, 0.3);
}

.explore-btn i {
    transition: var(--transition);
}

.category-card-page:hover .explore-btn i {
    transform: translateX(4px);
}

[dir="rtl"] .category-card-page:hover .explore-btn i {
    transform: translateX(-4px);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 80px 0 60px;
    }
    
    .page-title {
        font-size: 2.2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .categories-page-section {
        padding: 60px 0;
    }
    
    .categories-filter-bar {
        padding: 20px;
        gap: 16px;
    }
    
    .filter-search {
        min-width: 100%;
        order: 1;
    }
    
    .filter-actions {
        width: 100%;
        justify-content: space-between;
        order: 2;
    }
    
    .sort-select {
        flex: 1;
        min-width: 0;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .category-card-page.list-view {
        flex-direction: column;
    }
    
    .category-card-page.list-view .category-image-page {
        width: 100%;
        height: 220px;
        min-height: 0;
    }
    
    .category-content-page {
        padding: 24px;
    }
    
    .category-name-page {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: 70px 0 50px;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .page-subtitle {
        font-size: 0.95rem;
    }
    
    .breadcrumb {
        font-size: 0.85rem;
    }
    
    .categories-filter-bar {
        padding: 16px;
    }
    
    .filter-search-input {
        padding: 12px 16px 12px 44px;
        font-size: 0.95rem;
    }
    
    .view-btn {
        padding: 8px 12px;
        font-size: 1rem;
    }
    
    .sort-select {
        padding: 10px 14px;
        font-size: 0.9rem;
    }
    
    .stat-item {
        padding: 14px 20px;
        font-size: 0.95rem;
    }
    
    .stat-item i {
        font-size: 1.2rem;
    }
    
    .category-image-page {
        height: 200px;
    }
    
    .category-content-page {
        padding: 20px;
    }
    
    .category-name-page {
        font-size: 1.2rem;
    }
    
    .category-description-page {
        font-size: 0.95rem;
    }
    
    .explore-btn {
        padding: 12px 20px;
        font-size: 0.95rem;
    }
}