/* Products Page Styles - Aligned with Brand Guidelines */

/* Products Page Layout */
.products-page {
    min-height: 100vh;
    background: var(--bg-secondary);
    overflow-x: hidden;
}

/* Main Content Area */
.products-main {
    padding: var(--space-10) 0;
}

.products-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.products-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    align-items: start;
}

/* Top Filters Bar - Refined */
.filters-bar {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    position: static;
    --filter-control-height: 44px;
}

.filters-form {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.filters-left {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.filters-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: auto;
    margin-inline-start: auto;
    margin-inline-end: 0;
}

.filters-right .search-input {
    width: 420px;
    height: var(--filter-control-height);
}

/* Icon button (used for sort) - Refined */
.filter-icon-btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: var(--filter-control-height);
    height: var(--filter-control-height);
    min-width: var(--filter-control-height);
    min-height: var(--filter-control-height);
    padding: 0 !important;
    border-radius: var(--radius-lg);
    line-height: 0;
    vertical-align: middle;
    position: relative;
    flex-shrink: 0;
    background: var(--gray-100);
    border: 2px solid var(--gray-200);
    color: var(--text-secondary);
    transition: var(--transition-all);
}

.filter-icon-btn:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
    color: var(--text-primary);
}

.filter-icon-btn i {
    font-size: 16px;
    line-height: 1;
    display: block;
    margin: 0 auto;
    padding: 0;
    text-align: center;
    width: 1em;
    height: 1em;
}

/* Filter Chips - Refined */
.filter-chip {
    background: var(--gray-100);
    color: var(--text-secondary);
    border: 2px solid var(--gray-200);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-all);
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-chip:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
}

.filter-chip.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* Filter Dropdown - Refined */
.filter-dropdown {
    position: relative;
}

.dropdown-panel {
    position: absolute;
    top: calc(100% + 8px);
    min-width: 240px;
    max-width: 90vw;
    max-height: 320px;
    overflow: auto;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3);
    display: none;
    z-index: 100;
}

/* Dynamic positioning classes for all screen sizes */
.dropdown-panel.dropdown-left {
    right: auto;
    left: 0;
    inset-inline-start: 0;
    inset-inline-end: auto;
}

.dropdown-panel.dropdown-right {
    right: 0;
    left: auto;
    inset-inline-start: auto;
    inset-inline-end: 0;
}

.dropdown-panel.dropdown-center {
    right: auto;
    left: 50%;
    inset-inline-start: 50%;
    inset-inline-end: auto;
    transform: translateX(-50%);
}

.filter-dropdown.open .dropdown-panel {
    display: block;
}

/* Desktop hover opens dropdowns */
@media (hover: hover) and (pointer: fine) {
    .filter-dropdown:hover::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        height: 8px;
    }
    .filter-dropdown:hover .dropdown-panel {
        display: block;
    }
}

/* Legacy class for backward compatibility - now handled by dynamic positioning */
.dropdown-panel-right {
    right: 0;
    left: auto;
    inset-inline-start: auto;
    inset-inline-end: 0;
}

/* Filter Input - Refined */
.filter-input {
    padding: var(--space-3) var(--space-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--white);
    text-align: start;
    transition: var(--transition-all);
    min-height: 44px;
}

.filter-input:hover {
    border-color: var(--gray-300);
}

.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
}

/* Filter Checkbox - Refined */
.filter-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    cursor: pointer;
    flex-direction: row;
    border-radius: var(--radius-md);
    transition: var(--transition-all);
}

.filter-checkbox:hover {
    background: var(--gray-100);
}

.filter-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
    border-radius: var(--radius-sm);
}

.filter-checkbox label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    margin: 0;
}

/* Filter Buttons - Using Brand System */
.filter-btn {
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    cursor: pointer;
    border: 2px solid transparent;
    text-decoration: none;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-all);
    min-height: 44px;
}

.filter-btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: var(--shadow-primary);
}

.filter-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-lg);
}

.filter-btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.filter-btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

/* Products Grid */
.products-content {
    min-height: 400px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

/* Product Card - Refined with Brand System */
.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    position: relative;
    display: grid;
    grid-template-rows: auto 1fr;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: var(--transition-all);
}

.product-card:hover {
    border-color: rgba(var(--primary-rgb), 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-card .product-btn {
    position: relative;
    z-index: 10;
}

.product-image {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    background: var(--gray-100);
}

.product-content {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
}

.product-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.product-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-2) 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-clamp: 2;
    height: 3rem;
}

.product-spacer {
    flex: 1;
}

/* Price Section - Refined */
.product-price-section {
    margin-bottom: var(--space-3);
}

.product-price-free {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--success-color);
}

.product-price-main {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.price-number {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--success-color);
}

.price-currency {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--success-color);
    margin-left: 2px;
}

.price-current {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--success-color);
}

.price-original {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: line-through;
}

/* Product Badges - Using Brand System */
.product-badge {
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.product-badge-digital {
    background: var(--digital-color);
}

.product-badge-physical {
    background: var(--physical-color);
}

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

.product-badge-file-pdf {
    background: #dc3545;
}

.product-badge-file-pptx {
    background: #fd7e14;
}

.product-badge-file-docx {
    background: #0d6efd;
}

.product-badge-file-xlsx {
    background: #198754;
}

/* Product Actions - Using Brand System */
.product-actions {
    display: flex;
    gap: var(--space-2);
}

.product-btn {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    text-decoration: none;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-all);
    min-height: 44px;
}

.product-btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: var(--shadow-primary);
}

.product-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-lg);
}

/* Empty State - Refined */
.products-empty {
    text-align: center;
    padding: var(--space-12) var(--space-6);
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto;
}

.products-empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    opacity: 0.6;
    color: var(--primary-color);
}

.products-empty h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.products-empty p {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-6);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

/* Pagination - Refined */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
}

.page-link {
    padding: var(--space-2) var(--space-4);
    border: 2px solid var(--gray-200);
    background: var(--white);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: var(--transition-all);
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.page-link:hover {
    background: var(--gray-100);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-link:not([href]) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .filters-form {
        flex-wrap: wrap;
        gap: var(--space-2);
    }
    .filters-right {
        width: 100%;
        justify-content: flex-end;
    }
    .filters-right .search-input {
        width: 100%;
        flex: 1 1 auto;
    }
    
    [dir="rtl"] .filters-right {
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .products-container {
        padding: 0 var(--space-3);
    }
    
    .products-main {
        padding: var(--space-8) 0;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .filters-bar {
        padding: var(--space-3);
        position: static;
        top: auto;
        overflow: visible;
    }
    
    .product-content {
        padding: var(--space-3);
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
    
    .dropdown-panel {
        min-width: 200px;
        max-width: 95vw;
        max-height: 260px;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .product-btn {
        width: 100%;
    }
}

/* Loading states */
.filter-btn:disabled,
.product-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Age Range Slider Styles */
.age-range-panel {
    min-width: 280px;
    padding: var(--space-4) !important;
}

.age-range-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.age-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.age-range-sliders {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.age-range-slider-container {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.age-range-slider {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--gray-200);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.age-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 2px solid var(--white);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.age-range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.age-range-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 2px solid var(--white);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.age-range-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.age-range-slider::-webkit-slider-track {
    height: 6px;
    border-radius: 3px;
    background: var(--gray-200);
}

.age-range-slider::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    background: var(--gray-200);
    border: none;
}

.age-range-value {
    min-width: 24px;
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
    background: var(--gray-100);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.age-range-display {
    text-align: center;
    padding: var(--space-2);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

/* Focus states for accessibility */
.filter-input:focus,
.filter-btn:focus,
.product-btn:focus,
.age-range-slider:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ==========================================================================
   Category and Subject List Pages
   ========================================================================== */

.page-header {
    text-align: center;
    margin-bottom: var(--space-12);
    padding: var(--space-8) 0;
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.page-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.categories-grid,
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.category-card,
.subject-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition-all);
    text-align: center;
}

.category-card:hover,
.subject-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.category-icon,
.subject-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.category-content,
.subject-content {
    text-align: center;
}

.category-name,
.subject-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.category-description,
.subject-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: var(--line-height-normal);
}

.category-link,
.subject-link {
    display: inline-block;
    padding: var(--space-3) var(--space-6);
    background: var(--bg-gradient);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-all);
}

.category-link:hover,
.subject-link:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-4);
    color: var(--text-secondary);
}

/* RTL Support for Filters Bar */
[dir="rtl"] .filters-form {
    flex-direction: row-reverse;
}

[dir="rtl"] .filters-right {
    margin-left: 0;
    margin-right: auto;
    margin-inline-start: 0;
    margin-inline-end: auto;
}

[dir="rtl"] .filters-left {
    margin-right: 0;
    margin-left: auto;
    margin-inline-start: auto;
    margin-inline-end: 0;
}

[dir="rtl"] .filter-input {
    text-align: right;
    direction: rtl;
}

[dir="rtl"] .filter-checkbox {
    flex-direction: row-reverse;
    justify-content: flex-end;
    text-align: right;
}

[dir="rtl"] .filter-checkbox input[type="checkbox"] {
    order: 2;
}

[dir="rtl"] .filter-checkbox label {
    order: 1;
    text-align: right;
}

/* RTL dropdown positioning */
[dir="rtl"] .dropdown-panel.dropdown-left {
    right: 0;
    left: auto;
}

[dir="rtl"] .dropdown-panel.dropdown-right {
    right: auto;
    left: 0;
}

[dir="rtl"] .dropdown-panel-right {
    right: auto;
    left: 0;
}

/* RTL dropdown content alignment */
[dir="rtl"] .dropdown-panel {
    text-align: right;
    direction: rtl;
}

/* RTL age range labels */
[dir="rtl"] .age-range-labels {
    flex-direction: row-reverse;
}

[dir="rtl"] .age-range-slider-container {
    flex-direction: row-reverse;
}

[dir="rtl"] .age-range-panel {
    text-align: right;
    direction: rtl;
}

[dir="rtl"] .age-range-display {
    text-align: right;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    color: var(--gray-400);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.empty-state p {
    font-size: var(--font-size-base);
    max-width: 400px;
    margin: 0 auto;
}

/* Responsive Design for Category/Subject Lists */
@media (max-width: 768px) {
    .page-header {
        margin-bottom: var(--space-8);
        padding: var(--space-6) 0;
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
    }
    
    .page-description {
        font-size: var(--font-size-base);
    }
    
    .categories-grid,
    .subjects-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .category-card,
    .subject-card {
        padding: var(--space-4);
    }
    
    .category-icon,
    .subject-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}