/* ====================================
   MATLAB Code Hub - List Page Specific Styles
   Extends cates.css for list page layouts
   ==================================== */

/* List Page Hero - Smaller than homepage */
.list-hero {
    padding: 120px 0 80px;
}

.list-hero .hero-title {
    font-size: 48px;
}

.list-hero .hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
    max-width: 1400px;
    margin: -40px auto 0;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--blur-md);
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    list-style: none;
    margin: 0;
    flex-wrap: wrap;
    border: 1px solid rgba(0, 118, 168, 0.15);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
}

.breadcrumb-item:not(:last-child)::after {
    content: '›';
    color: var(--text-light);
    font-size: 18px;
    font-weight: 600;
}

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
    background: rgba(0, 118, 168, 0.08);
}

.breadcrumb-item.active span {
    color: var(--text-primary);
    font-weight: 600;
}

/* List Page Container */
.list-page {
    max-width: 1400px;
    margin: 60px auto 0;
    padding: 0 24px 80px;
}

.list-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    margin-top: 40px;
}

/* Sidebar Styles */
.list-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* Custom scrollbar for sidebar */
.list-sidebar::-webkit-scrollbar {
    width: 6px;
}

.list-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.list-sidebar::-webkit-scrollbar-thumb {
    background: rgba(0, 118, 168, 0.3);
    border-radius: var(--radius-sm);
}

.list-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 118, 168, 0.5);
}

.sidebar-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 28px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.sidebar-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
}

.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'JetBrains Mono', monospace;
}

.sidebar-title i {
    color: var(--primary-color);
    font-size: 16px;
}

/* Category Tree */
.category-tree {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-item {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.category-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    position: relative;
    background: var(--bg-secondary);
}

.category-link i.fa-folder {
    color: var(--primary-color);
    font-size: 14px;
}

.category-link .toggle-icon {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-light);
    transition: var(--transition-fast);
}

.category-item.active > .category-link {
    background: var(--primary-gradient);
    color: var(--text-white);
    font-weight: 600;
}

.category-item.active > .category-link i {
    color: var(--text-white);
}

.category-item.active > .category-link .toggle-icon {
    transform: rotate(180deg);
    color: var(--text-white);
}

.category-link:hover {
    background: rgba(0, 118, 168, 0.12);
    transform: translateX(4px);
}

.category-item.active > .category-link:hover {
    background: var(--primary-gradient);
    filter: brightness(1.1);
}

/* Subcategory List */
.subcategory-list {
    padding: 8px 0 8px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.subcategory-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}

.subcategory-link i {
    color: var(--text-light);
    font-size: 10px;
}

.subcategory-link:hover {
    background: rgba(0, 118, 168, 0.08);
    color: var(--primary-color);
    transform: translateX(4px);
}

.subcategory-link:hover i {
    color: var(--primary-color);
}

.subcategory-link.active {
    background: rgba(0, 118, 168, 0.15);
    color: var(--primary-color);
    font-weight: 600;
}

.subcategory-link.active i {
    color: var(--primary-color);
}

/* Tag Cloud */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    background: linear-gradient(135deg, rgba(0, 118, 168, 0.06) 0%, rgba(0, 118, 168, 0.04) 100%);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 118, 168, 0.15);
    transition: var(--transition-fast);
}

.tag-item:hover {
    background: var(--primary-gradient);
    color: var(--text-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Main List Area */
.list-main {
    min-height: 600px;
}

/* Filter Bar */
.filter-bar {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 28px 32px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}

.filter-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
}

.filter-info {
    flex: 1;
}

.list-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-family: 'JetBrains Mono', monospace;
    display: flex;
    align-items: center;
    gap: 12px;
}

.list-title::before {
    content: '»';
    color: var(--primary-color);
    font-size: 32px;
}

.list-count {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.list-count i {
    color: var(--primary-color);
}

.list-count strong {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 16px;
}

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

/* Custom Select */
.sort-select {
    position: relative;
}

.custom-select {
    appearance: none;
    padding: 12px 40px 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid rgba(0, 118, 168, 0.2);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    min-width: 180px;
}

.custom-select:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 118, 168, 0.1);
}

.custom-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 118, 168, 0.15);
}

.sort-select::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    pointer-events: none;
}

/* View Toggle */
.view-toggle {
    display: flex;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 118, 168, 0.2);
}

.view-btn {
    padding: 10px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 16px;
}

.view-btn:hover {
    color: var(--primary-color);
    background: rgba(0, 118, 168, 0.08);
}

.view-btn.active {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

/* Resource List - Grid View */
.resource-list {
    display: grid;
    gap: 28px;
    animation: fadeIn 0.5s ease;
}

/* Default: Grid View with 2 columns */
.resource-list.grid-view {
    grid-template-columns: repeat(2, 1fr);
}

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

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

/* Resource Item - Grid View */
.resource-item {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
}

.resource-item::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: left;
    z-index: 1;
}

.resource-item:hover::before {
    transform: scaleX(1);
}

.resource-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(0, 118, 168, 0.3);
}

/* Resource Thumbnail */
.resource-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 118, 168, 0.08) 0%, rgba(0, 118, 168, 0.03) 100%);
}

.resource-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.resource-item:hover .resource-thumbnail img {
    transform: scale(1.1);
}

.thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, rgba(0, 118, 168, 0.08) 0%, rgba(0, 118, 168, 0.03) 100%);
}

.thumbnail-placeholder i {
    font-size: 48px;
    color: var(--primary-color);
    opacity: 0.5;
}

.thumbnail-placeholder span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.5;
}

.resource-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 118, 168, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.resource-item:hover .resource-overlay {
    opacity: 1;
}

.view-details-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--text-white);
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.view-details-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

/* Resource Body */
.resource-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1;
}

/* Grid view without images - adjust padding and spacing */
.resource-list.grid-view .resource-item .resource-body {
    padding: 28px;
}

.resource-list.grid-view .resource-item .resource-title {
    font-size: 18px;
    margin-bottom: 12px;
}

.resource-list.grid-view .resource-item .resource-description {
    font-size: 14px;
    -webkit-line-clamp: 3;
}

.resource-list.grid-view .resource-item .download-btn-small {
    width: 100%;
}

.resource-item .resource-title {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
    margin: 0;
    min-height: auto;
}

.resource-item .resource-title::before {
    display: none;
}

.resource-item .resource-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.resource-item .resource-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.resource-item .resource-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

.meta-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: linear-gradient(135deg, rgba(0, 118, 168, 0.06) 0%, rgba(0, 118, 168, 0.04) 100%);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid rgba(0, 118, 168, 0.12);
    white-space: nowrap;
}

.meta-badge i {
    font-size: 10px;
    color: var(--primary-color);
}

.resource-footer {
    padding-top: 8px;
}

.download-btn-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 20px;
    background: var(--primary-gradient);
    color: var(--text-white);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.download-btn-small:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-white);
    filter: brightness(1.1);
}

/* Resource Item - List View */
.resource-list.list-view .resource-item {
    flex-direction: row;
    height: auto;
}

.resource-list.list-view .resource-thumbnail {
    width: 280px;
    height: 200px;
    flex-shrink: 0;
}

.resource-list.list-view .resource-body {
    flex: 1;
    padding: 28px;
}

.resource-list.list-view .resource-title {
    font-size: 20px;
}

.resource-list.list-view .resource-description {
    -webkit-line-clamp: 2;
}

/* List View Without Images - Full Width Cards */
.resource-list.list-view .resource-item:not(:has(.resource-thumbnail)) .resource-body,
.resource-list.list-view .resource-item .resource-body {
    width: 100%;
    padding: 32px;
}

.resource-list.list-view .resource-item .resource-title {
    font-size: 22px;
    margin-bottom: 16px;
}

.resource-list.list-view .resource-item .resource-description {
    font-size: 15px;
    line-height: 1.7;
    -webkit-line-clamp: 3;
    margin-bottom: 16px;
}

.resource-list.list-view .resource-item .resource-meta {
    padding-top: 16px;
    margin-bottom: 16px;
}

.resource-list.list-view .resource-item .resource-footer {
    padding-top: 0;
}

.resource-list.list-view .download-btn-small {
    width: auto;
    max-width: 200px;
}

/* Pagination */
.pagination-nav {
    margin-top: 60px;
    display: flex;
    justify-content: center;
}

.pagination,
#pages,
#pager {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-primary);
    padding: 20px 28px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
    margin: 0;
}

/* Reset list styles if pagination is using <li> tags */
.pagination li,
#pages li,
#pager li {
    list-style: none;
    margin: 0;
    padding: 0;
    display: inline-flex;
}

.pagination a,
.pagination span,
.pagination li a,
.pagination li span,
#pages a,
#pages span,
#pages li a,
#pages li span,
#pager a,
#pager span,
#pager li a,
#pager li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition-fast);
    border: 1px solid rgba(0, 118, 168, 0.15);
    line-height: 1;
}

.pagination a:hover,
.pagination li a:hover,
#pages a:hover,
#pages li a:hover,
#pager a:hover,
#pager li a:hover {
    background: var(--primary-gradient);
    color: var(--text-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pagination .current,
.pagination li.active a,
.pagination li.active span,
#pages .current,
#pages li.active a,
#pages li.active span,
#pager .current,
#pager li.active a,
#pager li.active span {
    background: var(--primary-gradient);
    color: var(--text-white);
    border-color: transparent;
    box-shadow: var(--shadow-sm);
}

.pagination .disabled,
.pagination li.disabled a,
.pagination li.disabled span,
#pages .disabled,
#pages li.disabled a,
#pages li.disabled span,
#pager .disabled,
#pager li.disabled a,
#pager li.disabled span {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Empty State */
.empty-state-large {
    text-align: center;
    padding: 120px 40px;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.empty-state-large .empty-icon {
    font-size: 100px;
    color: var(--text-light);
    margin-bottom: 32px;
    opacity: 0.3;
}

.empty-state-large .empty-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
    font-family: 'JetBrains Mono', monospace;
}

.empty-state-large .empty-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.back-home-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--primary-gradient);
    color: var(--text-white);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.back-home-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: var(--text-white);
    filter: brightness(1.1);
}

/* Responsive Design for List Page */
@media (max-width: 1024px) {
    .list-container {
        grid-template-columns: 260px 1fr;
        gap: 28px;
    }
    
    .sidebar-section {
        padding: 20px;
    }
    
    .filter-bar {
        padding: 20px 24px;
    }
    
    .list-title {
        font-size: 24px;
    }
    
    /* Grid view with 2 columns on medium screens */
    .resource-list.grid-view {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .list-hero {
        padding: 100px 0 60px;
    }
    
    .list-hero .hero-title {
        font-size: 36px;
    }
    
    .breadcrumb-nav {
        margin: -30px auto 0;
        padding: 0 16px;
    }
    
    .breadcrumb {
        padding: 12px 16px;
        font-size: 13px;
    }
    
    .list-page {
        padding: 0 16px 60px;
    }
    
    .list-container {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .list-sidebar {
        position: static;
        max-height: none;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
    }
    
    .filter-controls {
        flex-direction: column;
        width: 100%;
    }
    
    .custom-select {
        width: 100%;
    }
    
    .view-toggle {
        justify-content: center;
    }
    
    .resource-list.grid-view {
        grid-template-columns: 1fr;
    }
    
    .resource-list.list-view .resource-item {
        flex-direction: column;
    }
    
    .resource-list.list-view .resource-thumbnail {
        width: 100%;
        height: 200px;
    }
    
    .resource-list.list-view .resource-body {
        padding: 24px;
    }
    
    .pagination,
    #pages,
    #pager {
        padding: 16px 20px;
        gap: 8px;
    }
    
    .pagination a,
    .pagination span,
    .pagination li a,
    .pagination li span,
    #pages a,
    #pages span,
    #pages li a,
    #pages li span,
    #pager a,
    #pager span,
    #pager li a,
    #pager li span {
        min-width: 40px;
        height: 40px;
        padding: 0 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .list-hero .hero-title {
        font-size: 28px;
    }
    
    .list-hero .hero-subtitle {
        font-size: 16px;
    }
    
    .list-title {
        font-size: 20px;
    }
    
    .list-title::before {
        font-size: 24px;
    }
    
    .resource-thumbnail {
        height: 180px;
    }
    
    .resource-body {
        padding: 20px;
    }
}