/* ========================================
   Products Page Styles
   ======================================== */

.products-main {
    padding: var(--space-8) 0 var(--space-20);
}

/* ========================================
   Search Section
   ======================================== */
.search-section {
    margin-bottom: var(--space-6);
}

.search-box {
    display: flex;
    align-items: center;
    max-width: 500px;
    background: white;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.search-box:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-box .search-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: var(--space-3);
    color: var(--color-gray-400);
    flex-shrink: 0;
}

.search-box .search-input {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    border: none;
    background: transparent;
    outline: none;
    min-width: 0;
}

.search-box .search-input::placeholder {
    font-family: var(--font-sans);
    color: var(--color-gray-400);
}

.search-clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-right: var(--space-1);
    color: var(--color-gray-400);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
}

.search-box:focus-within .search-clear,
.search-box .search-input:not(:placeholder-shown) ~ .search-clear {
    opacity: 1;
}

.search-clear:hover {
    color: var(--color-gray-600);
    background: var(--color-gray-100);
}

/* ========================================
   Filter Section
   ======================================== */
.filter-section {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

/* Filter Grid - 6 columns */
.filter-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-4);
}

.filter-column {
    display: flex;
    flex-direction: column;
}

.filter-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
}

/* Multi-select boxes */
.multi-select {
    width: 100%;
    height: 180px;
    padding: var(--space-1);
    font-size: 0.8125rem;
    font-family: var(--font-sans);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background: white;
    overflow-y: auto;
}

.multi-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.multi-select option {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.multi-select option:checked {
    background: linear-gradient(0deg, #1e40af 0%, #1e40af 100%);
    color: white;
}

.multi-select option:hover {
    background: var(--color-gray-100);
}

/* When hovering over selected option, keep it darker blue */
.multi-select option:checked:hover {
    background: linear-gradient(0deg, #1e3a8a 0%, #1e3a8a 100%);
    color: white;
}

/* ========================================
   Results Header
   ======================================== */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
    gap: var(--space-4);
}

.results-info {
    flex: 1;
}

.results-count {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-2);
}

.results-count span {
    font-weight: 600;
    color: var(--color-gray-900);
}

/* Active Filters */
.active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
}

.active-filters:empty {
    display: none;
}

.active-filters-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-600);
}

.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-sm);
}

.filter-tag .tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    margin-left: 2px;
    color: var(--color-primary);
    background: none;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.filter-tag .tag-remove:hover {
    opacity: 1;
    background: rgba(37, 99, 235, 0.2);
}

.clear-all-btn {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-500);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    margin-left: var(--space-2);
}

.clear-all-btn:hover {
    color: var(--color-error);
    text-decoration: underline;
}

/* Sort Status */
.sort-status {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
    color: var(--color-gray-600);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    white-space: nowrap;
}

.sort-status:empty {
    display: none;
}

.sort-status svg {
    width: 14px;
    height: 14px;
    color: var(--color-gray-500);
}

/* ========================================
   Table Toolbar
   ======================================== */
.table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Per page buttons */
.per-page-selector {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.per-page-label {
    font-size: 0.8125rem;
    color: var(--color-gray-600);
}

.per-page-buttons {
    display: flex;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.per-page-btn {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-600);
    background: white;
    border: none;
    border-right: 1px solid var(--color-gray-300);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.per-page-btn:last-child {
    border-right: none;
}

.per-page-btn:hover {
    background: var(--color-gray-100);
}

.per-page-btn.active {
    background: var(--color-primary);
    color: white;
}

.per-page-btn.active:hover {
    background: var(--color-primary-dark);
}

/* Column toggle dropdown */
.column-toggle {
    position: relative;
}

.column-toggle-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-700);
    background: white;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.column-toggle-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

.column-toggle-btn svg {
    width: 16px;
    height: 16px;
}

.column-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 200px;
    padding: var(--space-2);
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: none;
}

.column-dropdown.open {
    display: block;
}

.column-dropdown label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2);
    font-size: 0.8125rem;
    color: var(--color-gray-700);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.column-dropdown label:hover {
    background: var(--color-gray-50);
}

.column-dropdown input {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
}

/* Export button */
.export-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-700);
    background: white;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

.export-btn svg {
    width: 16px;
    height: 16px;
}

/* Compare bar */
.compare-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-4);
    background: var(--color-gray-900);
    color: white;
    z-index: 100;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
}

.compare-bar.visible {
    display: block;
}

.compare-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.compare-items {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.compare-count {
    font-size: 0.875rem;
    color: var(--color-gray-300);
}

.compare-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    background: var(--color-gray-800);
    border-radius: var(--radius-md);
}

.compare-chip-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--color-gray-700);
    border: none;
    border-radius: 50%;
    color: var(--color-gray-400);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.compare-chip-remove:hover {
    background: var(--color-gray-600);
    color: white;
}

.compare-actions {
    display: flex;
    gap: var(--space-3);
}

.compare-btn {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.compare-btn-primary {
    background: var(--color-primary);
    color: white;
    border: none;
}

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

.compare-btn-secondary {
    background: transparent;
    color: var(--color-gray-300);
    border: 1px solid var(--color-gray-600);
}

.compare-btn-secondary:hover {
    background: var(--color-gray-800);
    color: white;
}

/* Compare modal */
.compare-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: var(--space-8);
    padding-top: 100px; /* Account for nav bar */
    overflow-y: auto;
}

.compare-modal.open {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.compare-modal-content {
    background: white;
    border-radius: var(--radius-xl);
    max-width: 1000px;
    width: 100%;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.compare-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    background: white;
    z-index: 10;
}

.compare-modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.compare-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-gray-100);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.compare-modal-close:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-900);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
}

.compare-table th,
.compare-table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-100);
}

.compare-table th {
    font-weight: 600;
    color: var(--color-gray-500);
    background: var(--color-gray-50);
    white-space: nowrap;
    width: 120px;
}

.compare-table td {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.compare-table tr:hover td {
    background: var(--color-gray-50);
}

.compare-table .part-header {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-primary);
}

.compare-highlight {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    font-weight: 600;
}

/* ========================================
   Loading State
   ======================================== */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    text-align: center;
}

.loading-state.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--space-4);
}

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

.loading-state p {
    color: var(--color-gray-500);
    font-size: 0.9375rem;
}

/* ========================================
   Table
   ======================================== */
.table-wrapper {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    overflow-x: auto;
}

.table-wrapper.hidden {
    display: none;
}

.products-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.products-table thead {
    background: var(--color-gray-100);
}

.products-table th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--color-gray-700);
    border-bottom: 2px solid var(--color-gray-300);
    white-space: nowrap;
    vertical-align: middle;
}

.products-table th.numeric {
    text-align: right;
}

.products-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast);
}

.products-table th.sortable:hover {
    background: var(--color-gray-200);
}

.products-table th.sortable.asc,
.products-table th.sortable.desc {
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.1);
}

.products-table th.sortable.asc::after {
    content: ' ↑';
}

.products-table th.sortable.desc::after {
    content: ' ↓';
}

.products-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-gray-200);
    color: var(--color-gray-700);
    vertical-align: middle;
}

.products-table td.numeric {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.products-table tbody tr:nth-child(even) {
    background: var(--color-gray-50);
}

.products-table tbody tr:hover {
    background: rgba(37, 99, 235, 0.05);
}

/* Hidden columns */
.products-table th.hidden-col,
.products-table td.hidden-col {
    display: none;
}

/* Comparison checkbox */
.compare-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

/* Part number cell */
.part-cell {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    white-space: nowrap;
}

.pdf-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #dc2626;
    flex-shrink: 0;
}

.pdf-link svg {
    width: 18px;
    height: 18px;
}

.pdf-link:hover {
    opacity: 0.7;
}

.part-link {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--color-primary);
}

.part-link:hover {
    text-decoration: underline;
}

/* Polarity badges */
.polarity-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.polarity-badge.n-ch {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.polarity-badge.p-ch {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-6);
    padding: var(--space-4);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
    background: white;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.pagination-info span {
    font-weight: 600;
    color: var(--color-gray-900);
}

/* ========================================
   Product Notes
   ======================================== */
.product-notes {
    margin-top: var(--space-8);
    padding: var(--space-6);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

.product-notes p {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--space-3);
}

.product-notes ul {
    list-style: disc;
    padding-left: var(--space-6);
}

.product-notes li {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-2);
}

.product-notes code {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    background: var(--color-gray-200);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1200px) {
    .filter-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .filter-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .multi-select {
        height: 140px;
    }
    
    .table-wrapper {
        overflow-x: auto;
        margin: 0 calc(-1 * var(--space-4));
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
    
    .products-table {
        min-width: 1000px;
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--space-3);
        align-items: flex-start;
    }
    
    .results-info {
        width: 100%;
    }
    
    .active-filters {
        width: 100%;
        margin-top: var(--space-2);
    }
}

@media (max-width: 480px) {
    .filter-grid {
        grid-template-columns: 1fr;
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--space-3);
        align-items: flex-start;
    }
    
    .results-info {
        width: 100%;
    }
    
    .active-filters {
        width: 100%;
        margin-top: var(--space-2);
    }
    
    .filter-tag {
        max-width: 100%;
        word-break: break-word;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
}