/**
 * RenDS — Data Table Organism
 * ============================
 *
 * A comprehensive, accessible data table component supporting:
 * - Sortable columns with directional indicators
 * - Row selection with multi-select and shift+click range selection
 * - Client-side pagination with configurable page size
 * - Keyboard navigation (arrow keys, Enter, Space)
 * - Column resizing via drag handle
 * - Pinned/sticky columns and headers
 * - Multiple density variants (compact, comfortable)
 * - Loading states with skeleton shimmer
 * - Empty state messaging
 * - Responsive horizontal scrolling
 * - Search/filter toolbar integration
 * - Full ARIA support for accessibility
 *
 * @example
 * <ren-table data-page-size="10">
 *   <div class="ren-table-toolbar">
 *     <input class="ren-input ren-input-sm" placeholder="Search..." data-table-search>
 *   </div>
 *   <div class="ren-table-wrapper">
 *     <table class="ren-table">
 *       <thead class="ren-table-header">
 *         <tr>
 *           <th class="ren-th ren-table-select"><input type="checkbox" aria-label="Select all"></th>
 *           <th class="ren-th ren-th-sortable" data-column="name">Name</th>
 *         </tr>
 *       </thead>
 *       <tbody class="ren-table-body">
 *         <tr class="ren-tr" data-row-id="1">
 *           <td class="ren-td ren-table-select"><input type="checkbox" aria-label="Select row"></td>
 *           <td class="ren-td">John Doe</td>
 *         </tr>
 *       </tbody>
 *     </table>
 *   </div>
 *   <div class="ren-table-pagination"></div>
 * </ren-table>
 */

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

ren-table {
  container-type: inline-size;
  container-name: ren-table;
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
}

.ren-table-wrapper {
  flex: 1;
  overflow-x: auto;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;

  &::-webkit-scrollbar {
    height: 8px;
    width: 8px;
  }

  &::-webkit-scrollbar-track {
    background: transparent;
  }

  &::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: var(--radius-sm);
    transition: background-color var(--duration-state) var(--ease-enter);

    &:hover {
      background-color: var(--color-text-muted);
    }
  }
}

.ren-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
  font-size: var(--body-size);
  color: var(--color-text);
}

/* ===== Header Styles ===== */

.ren-table-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--color-surface-raised);
}

.ren-table-header tr {
  border-bottom: 1px solid var(--color-border);
}

.ren-th {
  padding: var(--space-3) var(--space-4);
  text-align: start;
  font-weight: var(--label-weight);
  font-size: var(--label-size);
  color: var(--color-text);
  user-select: none;
  white-space: nowrap;
  background-color: var(--color-surface-raised);
  border-inline-end: 1px solid var(--color-border);
  height: 44px;
  display: table-cell;
  vertical-align: middle;

  &:last-child {
    border-inline-end: none;
  }

  &:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
  }
}

.ren-th-sortable {
  cursor: pointer;
  position: relative;
  transition: background-color var(--duration-tactile) var(--ease-enter);

  &:hover {
    background-color: var(--color-fill);
  }

  &::after {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-inline-start: var(--space-2);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 12" fill="none"><path d="M3 8L6 5l3 3M3 4L6 7l3-3" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.4;
    transition: opacity var(--duration-tactile) var(--ease-enter), transform var(--duration-tactile) var(--ease-enter);
    vertical-align: middle;
    color: var(--color-text-muted);
  }

  &[data-sort="asc"]::after {
    opacity: 1;
    transform: scaleY(1);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 12" fill="none"><path d="M6 2v6M3 5l3-3 3 3" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/></svg>');
  }

  &[data-sort="desc"]::after {
    opacity: 1;
    transform: scaleY(-1);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 12" fill="none"><path d="M6 2v6M3 5l3-3 3 3" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/></svg>');
  }
}

.ren-th-resize {
  position: absolute;
  inset-inline-end: 0;
  top: 0;
  height: 100%;
  width: 4px;
  cursor: col-resize;
  user-select: none;
  background-color: transparent;
  padding: 0;
  margin: 0;
  transition: background-color var(--duration-tactile) var(--ease-enter);

  &:hover,
  &:active {
    background-color: var(--color-accent);
  }
}

/* Pinned columns */
.ren-th-pinned {
  position: sticky;
  z-index: 11;
}

/* ===== Body & Row Styles ===== */

.ren-table-body {
  background-color: var(--color-surface);
}

.ren-tr {
  border-bottom: var(--stroke-1) solid var(--color-border);
  transition: background-color var(--duration-tactile) var(--ease-enter);
  height: 44px;

  &:nth-child(even) {
    background-color: var(--color-fill);
  }

  &:hover {
    background-color: var(--color-fill-hover);
  }

  &[aria-selected="true"] {
    background-color: var(--color-accent-subtle);

    .ren-td {
      background-color: var(--color-accent-subtle);
    }
  }

  &:focus-within {
    outline: 2px solid var(--color-accent);
    outline-offset: -1px;
  }
}

.ren-td {
  padding: var(--space-3) var(--space-4);
  border-inline-end: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
  height: 44px;

  &:last-child {
    border-inline-end: none;
  }

  &:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
  }
}

/* Pinned column cells */
.ren-td-pinned {
  position: sticky;
  z-index: 9;
  background-color: inherit;
}

/* ===== Selection Styles ===== */

.ren-table-select {
  width: var(--space-10);
  padding: var(--space-3);
  text-align: center;

  input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-accent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: background-color var(--duration-tactile) var(--ease-enter),
                border-color var(--duration-tactile) var(--ease-enter);

    &:hover:not(:disabled) {
      border-color: var(--color-accent);
    }

    &:checked {
      background-color: var(--color-accent);
      border-color: var(--color-accent);
      color: var(--color-on-accent);
    }

    &:focus-visible {
      outline: 2px solid var(--color-accent);
      outline-offset: 2px;
    }

    &:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }
  }
}

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

.ren-table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  font-size: var(--caption-size);
  color: var(--color-text-muted);
  gap: var(--space-4);

  &:empty {
    display: none;
  }
}

.ren-table-pagination-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--body-size);
  color: var(--color-text);
}

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

.ren-table-pagination-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: var(--space-2);
  background-color: var(--color-fill);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--body-size);
  cursor: pointer;
  transition: background-color var(--duration-tactile) var(--ease-enter),
              border-color var(--duration-tactile) var(--ease-enter);
  user-select: none;
  min-width: 44px;
  min-height: 44px;

  &:hover:not(:disabled) {
    background-color: var(--color-fill-hover);
    border-color: var(--color-accent);
  }

  &:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }

  &:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--color-fill);
  }
}

/* ===== Toolbar Styles ===== */

.ren-table-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;

  &:empty {
    display: none;
  }
}

.ren-table-toolbar-search {
  flex: 1;
  min-width: 200px;
  max-width: 300px;
}

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

.ren-table-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10);
  gap: var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
  background-color: var(--color-surface);
  min-height: 200px;

  .ren-table-empty-icon {
    font-size: 40px;
    opacity: 0.4;
  }

  .ren-table-empty-title {
    font-size: var(--label-size);
    font-weight: var(--label-weight);
    color: var(--color-text);
  }

  .ren-table-empty-description {
    font-size: var(--caption-size);
    color: var(--color-text-muted);
    max-width: 300px;
  }
}

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

ren-table[data-loading] {
  .ren-table-body {
    position: relative;
  }

  .ren-tr {
    opacity: 0.5;
    pointer-events: none;
  }
}

.ren-table-loading-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgb(255, 255, 255, 0.4),
    transparent
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  z-index: 20;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

/* ===== Density Variants ===== */

.ren-table-compact {
  .ren-th,
  .ren-td {
    padding: var(--space-2) var(--space-3);
    height: 32px;
  }

  .ren-tr {
    height: 32px;
  }
}

.ren-table-comfortable {
  .ren-th,
  .ren-td {
    padding: var(--space-4) var(--space-5);
    height: 56px;
  }

  .ren-tr {
    height: 56px;
  }
}

/* ===== Responsive Design (Container Query) ===== */

@container ren-table (max-width: 600px) {
  .ren-table {
    min-width: 600px;
  }

  .ren-table-pagination {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .ren-table-pagination-info {
    width: 100%;
  }

  .ren-table-pagination-controls {
    width: 100%;
    justify-content: space-between;
  }

  .ren-table-toolbar {
    flex-direction: column;
  }

  .ren-table-toolbar-search {
    min-width: 100%;
    max-width: 100%;
  }
}

/* ===== Accessibility ===== */

/* High contrast mode support */
@media (prefers-contrast: more) {
  .ren-th {
    border: 1px solid var(--color-text);
  }

  .ren-td {
    border: var(--stroke-1) solid var(--color-text);
  }

  .ren-th-sortable:hover {
    background-color: var(--color-text);
    color: var(--color-surface);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .ren-tr,
  .ren-th-sortable,
  .ren-table-pagination-button,
  .ren-table-select input[type="checkbox"] {
    transition: none;
  }

  .ren-table-loading-overlay {
    animation: none;
    background: rgb(255, 255, 255, 0.2);
  }
}

/* Dark mode support (if light/dark theming is used) */
@media (prefers-color-scheme: dark) {
  .ren-table {
    /* Uses CSS custom properties from design tokens */
    /* No additional overrides needed if tokens are properly defined */
  }
}
/* Appearance API bridge */
.ren-table { font-size: var(--ren-table-header-size, var(--body-size)); }
.ren-table thead { background: var(--ren-table-header-bg, var(--color-surface-sunken)); color: var(--ren-table-header-color, var(--color-text-muted)); font-weight: var(--ren-table-header-weight, var(--weight-semibold)); }
.ren-table tr { min-block-size: var(--ren-table-row-height, var(--size-lg)); block-size: var(--ren-table-row-height, var(--size-lg)); }
.ren-table th, .ren-table td { padding: var(--ren-table-cell-padding, var(--space-3)); }
.ren-table { border-color: var(--ren-table-border-color, var(--color-border-muted)); }
.ren-table tbody tr:nth-child(even) { background: var(--ren-table-stripe-bg, var(--color-surface-sunken)); }
.ren-table tbody tr:hover { background: var(--ren-table-hover-bg, var(--color-fill)); }
.ren-table tbody tr[aria-selected="true"], .ren-table tbody tr[data-selected] { background: var(--ren-table-selected-bg, var(--color-accent-subtle)); }