/**
 * Tables.css - Modern Data Table Components
 * Part of Office-AI-ze v2.0 UI/UX Upgrade (Phase 3)
 * ClickUp-inspired tables with hover states, sticky headers, sorting, responsive design
 */

/* =============================================================================
   Table Container
   ============================================================================= */

.table-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.dark .table-container {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border);
}

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Custom Scrollbar */
.table-responsive::-webkit-scrollbar {
    height: 8px;
}

.table-responsive::-webkit-scrollbar-track {
    background: var(--color-gray-100);
}

.dark .table-responsive::-webkit-scrollbar-track {
    background: var(--dark-bg-tertiary);
}

.table-responsive::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: 4px;
}

.dark .table-responsive::-webkit-scrollbar-thumb {
    background: var(--dark-border);
}

/* =============================================================================
   Table Base
   ============================================================================= */

.table-modern {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

/* =============================================================================
   Table Header
   ============================================================================= */

.table-modern thead {
    background: var(--color-gray-50);
    border-bottom: 2px solid var(--color-gray-200);
}

.dark .table-modern thead {
    background: var(--dark-bg-tertiary);
    border-bottom-color: var(--dark-border);
}

.table-modern thead th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: var(--font-bold);
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.dark .table-modern thead th {
    color: var(--dark-text-secondary);
}

/* Sticky Header */
.table-sticky-header thead th {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--color-gray-50);
    box-shadow: 0 1px 0 var(--color-gray-200);
}

.dark .table-sticky-header thead th {
    background: var(--dark-bg-tertiary);
    box-shadow: 0 1px 0 var(--dark-border);
}

/* =============================================================================
   Table Body
   ============================================================================= */

.table-modern tbody tr {
    border-bottom: 1px solid var(--color-gray-200);
    transition: background-color 150ms ease;
}

.dark .table-modern tbody tr {
    border-bottom-color: var(--dark-border);
}

.table-modern tbody tr:last-child {
    border-bottom: none;
}

.table-modern tbody td {
    padding: var(--space-3) var(--space-4);
    color: var(--color-gray-900);
}

.dark .table-modern tbody td {
    color: var(--dark-text-primary);
}

/* Hover State */
.table-hover tbody tr:hover {
    background: var(--color-gray-50);
}

.dark .table-hover tbody tr:hover {
    background: var(--dark-bg-tertiary);
}

/* Active/Selected Row */
.table-modern tbody tr.row-active {
    background: var(--color-primary-light);
}

.dark .table-modern tbody tr.row-active {
    background: rgba(123, 104, 238, 0.2);
}

/* Clickable Rows */
.table-clickable tbody tr {
    cursor: pointer;
}

.table-clickable tbody tr:active {
    transform: scale(0.99);
}

/* =============================================================================
   Zebra Striping
   ============================================================================= */

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

.dark .table-striped tbody tr:nth-child(odd) {
    background: rgba(255, 255, 255, 0.02);
}

.table-striped.table-hover tbody tr:nth-child(odd):hover {
    background: var(--color-gray-100);
}

.dark .table-striped.table-hover tbody tr:nth-child(odd):hover {
    background: rgba(255, 255, 255, 0.05);
}

/* =============================================================================
   Sortable Headers
   ============================================================================= */

.table-sortable thead th {
    cursor: pointer;
    user-select: none;
    position: relative;
    padding-right: var(--space-8);
}

.table-sortable thead th:hover {
    background: var(--color-gray-100);
}

.dark .table-sortable thead th:hover {
    background: rgba(255, 255, 255, 0.05);
}

.table-sortable thead th::after {
    content: '';
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid var(--color-gray-400);
    opacity: 0.3;
    transition: opacity 150ms ease;
}

.table-sortable thead th:hover::after {
    opacity: 0.6;
}

/* Sorted Column */
.table-sortable thead th.sorted-asc::after {
    border-top: 5px solid var(--color-primary);
    border-bottom: none;
    opacity: 1;
}

.table-sortable thead th.sorted-desc::after {
    border-top: none;
    border-bottom: 5px solid var(--color-primary);
    opacity: 1;
}

/* =============================================================================
   Column Alignment
   ============================================================================= */

.table-modern .text-left {
    text-align: left;
}

.table-modern .text-center {
    text-align: center;
}

.table-modern .text-right {
    text-align: right;
}

/* =============================================================================
   Cell Content Utilities
   ============================================================================= */

.table-cell-truncate {
    max-width: 250px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.table-cell-wrap {
    white-space: normal;
    word-break: break-word;
}

.table-cell-nowrap {
    white-space: nowrap;
}

/* =============================================================================
   Status Badges (Table-Specific)
   ============================================================================= */

.table-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-medium);
    line-height: 1;
}

.table-badge-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

.table-badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.table-badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
}

.table-badge-info {
    background: var(--color-info-light);
    color: var(--color-info-dark);
}

.table-badge-neutral {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

.dark .table-badge-neutral {
    background: var(--dark-border);
    color: var(--dark-text-secondary);
}

/* =============================================================================
   Table Actions
   ============================================================================= */

.table-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.table-action-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-gray-500);
    cursor: pointer;
    transition: all 150ms ease;
}

.dark .table-action-btn {
    color: var(--dark-text-tertiary);
}

.table-action-btn:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.dark .table-action-btn:hover {
    background: var(--dark-bg-tertiary);
    color: var(--color-primary);
}

.table-action-btn.danger:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

/* =============================================================================
   Checkboxes (Bulk Selection)
   ============================================================================= */

.table-checkbox-cell {
    width: 40px;
    padding: var(--space-3) var(--space-4);
}

.table-checkbox {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    background: var(--color-white);
    cursor: pointer;
    position: relative;
    transition: all 150ms ease;
}

.dark .table-checkbox {
    border-color: var(--dark-border);
    background: var(--dark-bg-secondary);
}

.table-checkbox:checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.table-checkbox:checked::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
}

.table-checkbox:indeterminate {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.table-checkbox:indeterminate::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 2px;
    background: white;
}

/* =============================================================================
   Empty State
   ============================================================================= */

.table-empty {
    padding: var(--space-16) var(--space-8);
    text-align: center;
    color: var(--color-gray-500);
}

.dark .table-empty {
    color: var(--dark-text-tertiary);
}

.table-empty-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.table-empty-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.dark .table-empty-title {
    color: var(--dark-text-secondary);
}

.table-empty-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-4);
}

.dark .table-empty-description {
    color: var(--dark-text-tertiary);
}

/* =============================================================================
   Loading State
   ============================================================================= */

.table-loading {
    position: relative;
}

.table-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.dark .table-loading::after {
    background: rgba(26, 26, 46, 0.8);
}

/* =============================================================================
   Pagination
   ============================================================================= */

.table-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-top: 1px solid var(--color-gray-200);
}

.dark .table-pagination {
    border-top-color: var(--dark-border);
}

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

.dark .pagination-info {
    color: var(--dark-text-secondary);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.pagination-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all 150ms ease;
    font-size: var(--font-size-sm);
}

.dark .pagination-btn {
    border-color: var(--dark-border);
    color: var(--dark-text-secondary);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.pagination-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* =============================================================================
   Avatar in Table
   ============================================================================= */

.table-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.table-avatar-group {
    display: flex;
    align-items: center;
}

.table-avatar-group .table-avatar {
    margin-left: -8px;
    border: 2px solid var(--color-white);
}

.dark .table-avatar-group .table-avatar {
    border-color: var(--dark-bg-secondary);
}

.table-avatar-group .table-avatar:first-child {
    margin-left: 0;
}

.table-avatar-more {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-gray-200);
    color: var(--color-gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-semibold);
    margin-left: -8px;
    border: 2px solid var(--color-white);
}

.dark .table-avatar-more {
    background: var(--dark-border);
    color: var(--dark-text-secondary);
    border-color: var(--dark-bg-secondary);
}

/* =============================================================================
   Expandable Rows
   ============================================================================= */

.table-expandable tbody tr.expandable {
    cursor: pointer;
}

.table-expand-icon {
    transition: transform 200ms ease;
}

.table-expandable tbody tr.expanded .table-expand-icon {
    transform: rotate(90deg);
}

.table-expanded-content {
    padding: var(--space-4);
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-200);
}

.dark .table-expanded-content {
    background: var(--dark-bg-tertiary);
    border-top-color: var(--dark-border);
}

/* =============================================================================
   Compact Table
   ============================================================================= */

.table-compact thead th {
    padding: var(--space-2) var(--space-3);
}

.table-compact tbody td {
    padding: var(--space-2) var(--space-3);
}

/* =============================================================================
   Bordered Table
   ============================================================================= */

.table-bordered {
    border: 1px solid var(--color-gray-200);
}

.dark .table-bordered {
    border-color: var(--dark-border);
}

.table-bordered thead th,
.table-bordered tbody td {
    border-right: 1px solid var(--color-gray-200);
}

.dark .table-bordered thead th,
.dark .table-bordered tbody td {
    border-right-color: var(--dark-border);
}

.table-bordered thead th:last-child,
.table-bordered tbody td:last-child {
    border-right: none;
}

/* =============================================================================
   Responsive (Mobile)
   ============================================================================= */

@media (max-width: 768px) {
    /* Card-based table on mobile */
    .table-card-mobile {
        display: block;
    }
    
    .table-card-mobile thead {
        display: none;
    }
    
    .table-card-mobile tbody {
        display: block;
    }
    
    .table-card-mobile tbody tr {
        display: block;
        margin-bottom: var(--space-4);
        border: 1px solid var(--color-gray-200);
        border-radius: var(--radius-md);
        padding: var(--space-4);
    }
    
    .dark .table-card-mobile tbody tr {
        border-color: var(--dark-border);
    }
    
    .table-card-mobile tbody td {
        display: flex;
        justify-content: space-between;
        padding: var(--space-2) 0;
        border-bottom: 1px solid var(--color-gray-100);
    }
    
    .dark .table-card-mobile tbody td {
        border-bottom-color: var(--dark-border);
    }
    
    .table-card-mobile tbody td:last-child {
        border-bottom: none;
    }
    
    .table-card-mobile tbody td::before {
        content: attr(data-label);
        font-weight: var(--font-semibold);
        color: var(--color-gray-700);
        margin-right: var(--space-2);
    }
    
    .dark .table-card-mobile tbody td::before {
        color: var(--dark-text-secondary);
    }
    
    /* Pagination stacks on mobile */
    .table-pagination {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .pagination-controls {
        width: 100%;
        justify-content: center;
    }
}

/* =============================================================================
   Print Styles
   ============================================================================= */

@media print {
    .table-actions,
    .table-checkbox,
    .table-pagination {
        display: none !important;
    }
    
    .table-modern tbody tr:hover {
        background: transparent !important;
    }
}