.tableTab {
      padding: 8px 16px;
      background: transparent;
      border: none;
      border-bottom: 2px solid transparent;
      color: var(--text-secondary);
      cursor: pointer;
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.2s;
    }
    .tableTab:hover {
      color: var(--text-primary);
      background: var(--bg-secondary);
    }
    .tableTab.active {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    /* File path with copy button */
    .filePath {
      display: flex;
      align-items: center;
      gap: 8px;
      max-width: 100%;
    }
    .filePathText {
      font-family: var(--font-mono);
      font-size: 0.8rem;
      color: var(--text-secondary);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      flex: 1;
    }
    .copyBtn {
      padding: 2px 6px;
      background: var(--bg-tertiary);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      color: var(--text-secondary);
      font-size: 0.7rem;
      cursor: pointer;
      transition: all 0.2s;
      flex-shrink: 0;
    }
    .copyBtn:hover {
      background: var(--accent);
      color: white;
      border-color: var(--accent);
    }
    .copyBtn.copied {
      background: #16a34a;
      color: white;
      border-color: #16a34a;
    }

    /* Artifact list view */
    .artifactListView {
      padding: 16px;
    }
    .artifactListHeader {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .artifactListTable th.sortable-th {
      cursor: pointer;
      user-select: none;
      transition: color 0.15s;
    }
    .artifactListTable th.sortable-th:hover {
      color: var(--accent);
    }
    .artifactListTable th.sortable-th.sort-active {
      color: var(--accent);
    }
    .sort-indicator {
      font-size: 0.65rem;
      margin-left: 2px;
      vertical-align: middle;
    }

    /* ── Filter bar above table ── */
    .table-filter-bar {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 8px 4px;
    }
    .table-filter-btns {
      display: flex;
      gap: 4px;
      flex-wrap: wrap;
    }
    .table-filter-btn {
      --filter-color: var(--accent);
      padding: 3px 10px;
      font-size: 0.75rem;
      font-weight: 500;
      border: 1px solid rgba(128,128,128,0.25);
      border-radius: 12px;
      background: transparent;
      color: var(--text-secondary);
      cursor: pointer;
      transition: all 0.15s;
      white-space: nowrap;
    }
    .table-filter-btn:hover {
      border-color: var(--filter-color);
      color: var(--filter-color);
      background: color-mix(in srgb, var(--filter-color) 10%, transparent);
    }
    .table-filter-btn.active {
      background: var(--filter-color);
      border-color: var(--filter-color);
      color: white;
    }
    .clear-filters-btn {
      padding: 4px 10px;
      font-size: 0.75rem;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: var(--bg-tertiary);
      color: var(--text-muted);
      cursor: pointer;
      transition: all 0.2s;
      margin-left: 6px;
    }
    .clear-filters-btn:hover {
      background: var(--bg-secondary);
      color: var(--text-primary);
    }
    .table-text-filter {
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 5px 12px;
      font-size: 0.82rem;
      color: var(--text-primary);
      flex: 1;
      min-width: 0;
      outline: none;
      transition: border-color 0.15s;
    }
    .table-text-filter:focus {
      border-color: var(--accent);
    }
    .table-text-filter::placeholder {
      color: var(--text-muted);
    }
    .table-filter-count {
      font-size: 0.78rem;
      color: var(--text-muted);
      white-space: nowrap;
      flex-shrink: 0;
    }

    /* ── Batch checkbox column ── */
    .artifactListTable .table-batch-cb,
    #tableSelectAll {
      width: 15px;
      height: 15px;
      cursor: pointer;
      accent-color: var(--accent);
    }
    .artifactListTable tr.batch-row-selected {
      background: var(--active, rgba(59, 130, 246, 0.08)) !important;
    }
    .artifactListTable tr.batch-row-selected .nameCell {
      color: var(--accent);
    }

    /* ── Batch action bar (sticky bottom of scroll area) ── */
    .table-batch-bar {
      position: sticky;
      bottom: 0;
      z-index: 10;
      padding: 10px 16px;
      border-top: 1px solid var(--accent);
      display: flex;
      align-items: center;
      gap: 8px;
      background: color-mix(in srgb, var(--accent) 5%, var(--bg-primary));
      border-radius: 0 0 8px 8px;
      animation: batchBarSlideUp 0.15s ease-out;
    }
    .table-batch-bar .batch-bar-count {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-right: auto;
    }
    .table-batch-bar .btn-batch-danger {
      background: rgba(239, 68, 68, 0.12);
      border: 1px solid rgba(239, 68, 68, 0.25);
      color: #ef4444;
      padding: 5px 12px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 0.8rem;
      font-weight: 500;
      transition: background 0.15s;
    }
    .table-batch-bar .btn-batch-danger:hover { background: rgba(239, 68, 68, 0.22); }
    .table-batch-bar .btn-batch-classify {
      background: rgba(99, 102, 241, 0.12);
      border: 1px solid rgba(99, 102, 241, 0.25);
      color: #818cf8;
      padding: 5px 12px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 0.8rem;
      font-weight: 500;
      transition: background 0.15s;
    }
    .table-batch-bar .btn-batch-classify:hover { background: rgba(99, 102, 241, 0.22); }
    .table-batch-bar .btn-batch-enrich {
      background: rgba(168, 85, 247, 0.12);
      border: 1px solid rgba(168, 85, 247, 0.25);
      color: #c084fc;
      padding: 5px 12px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 0.8rem;
      font-weight: 500;
      transition: background 0.15s;
    }
    .table-batch-bar .btn-batch-enrich:hover { background: rgba(168, 85, 247, 0.22); }
    .table-batch-bar .btn-batch-clear {
      background: none;
      border: none;
      color: var(--text-muted);
      cursor: pointer;
      font-size: 0.8rem;
      padding: 5px 8px;
    }
    .table-batch-bar .btn-batch-clear:hover { color: var(--text-primary); }

    .sidebarHeader {
      cursor: pointer;
      transition: color 0.2s;
    }
    .sidebarHeader:hover {
      color: var(--accent);
    }

    /* Clickable artifact links in chat */
    .artifactLink {
      color: var(--accent);
      cursor: pointer;
      text-decoration: underline;
      text-decoration-style: dotted;
      text-underline-offset: 2px;
    }
    .artifactLink:hover {
      text-decoration-style: solid;
      filter: brightness(1.2);
    }

    /* Lineage Node Tags */
    .lineageNodeTag {
      display: inline-block;
      padding: 2px 8px;
      margin: 2px;
      border-radius: 4px;
      font-size: 0.85rem;
      font-family: monospace;
      transition: all 0.15s;
    }
    .lineageNodeTag.upstream {
      background: rgba(16, 185, 129, 0.15);
      color: #10b981;
      border: 1px solid rgba(16, 185, 129, 0.3);
    }
    .lineageNodeTag.upstream:hover {
      background: rgba(16, 185, 129, 0.25);
    }
    .lineageNodeTag.downstream {
      background: rgba(59, 130, 246, 0.15);
      color: #3b82f6;
      border: 1px solid rgba(59, 130, 246, 0.3);
    }
    .lineageNodeTag.downstream:hover {
      background: rgba(59, 130, 246, 0.25);
    }
    .sidebarSection {
      margin-bottom: 12px;
    }
    .sidebarSectionTitle {
      padding: 8px 12px;
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--text-primary);
      background: var(--bg-tertiary);
      border-bottom: 1px solid var(--border-color);
    }

    /* Main Content - fills remaining grid space (properties in layout.css) */

    .namespace-group {
      margin-bottom: 8px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
    }
    .namespace-header {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      background: var(--bg-secondary);
      cursor: pointer;
      user-select: none;
      transition: background 0.15s;
    }
    .namespace-header:hover {
      background: var(--bg-tertiary);
    }
    .namespace-toggle {
      color: var(--text-muted);
      font-size: 0.7rem;
      transition: transform 0.2s;
      width: 12px;
    }
    .namespace-group.collapsed .namespace-toggle {
      transform: rotate(-90deg);
    }
    .namespace-icon {
      font-size: 1rem;
    }
    .namespace-name {
      flex: 1;
      font-weight: 600;
      font-size: 0.85rem;
      color: var(--text-primary);
    }
    .namespace-count {
      background: var(--accent);
      color: white;
      font-size: 0.65rem;
      padding: 1px 6px;
      border-radius: 8px;
      font-weight: 500;
    }
    .namespace-tables {
      border-top: 1px solid var(--border-color);
    }
    .namespace-group.collapsed .namespace-tables {
      display: none;
    }
    .namespace-tables .artifactListTable {
      margin: 0;
    }
    .namespace-tables .artifactListTable thead {
      display: none;
    }
    .namespace-tables .artifactListTable tbody tr:first-child td {
      border-top: none;
    }

    /* Namespace Filter Bar (top of tables view) */
    .namespaceFilterBar {
      padding: 8px 16px;
      background: var(--bg-secondary);
      border-bottom: 1px solid var(--border-color);
      overflow-x: auto;
      flex-shrink: 0;
    }
    .namespaceChips {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: nowrap;
    }
    .namespaceChip {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px 12px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      background: var(--bg-tertiary);
      color: var(--text-secondary);
      font-size: 0.8rem;
      cursor: pointer;
      white-space: nowrap;
      transition: all 0.15s;
    }
    .namespaceChip:hover {
      background: var(--bg-hover);
      border-color: var(--accent-color);
    }
    .namespaceChip.active {
      background: var(--accent-color);
      color: white;
      border-color: var(--accent-color);
    }
    .namespaceChip .chipIcon {
      font-size: 0.9rem;
    }
    .namespaceChip .chipLabel {
      font-weight: 500;
    }
    .namespaceChip .chipCount {
      background: rgba(255,255,255,0.2);
      padding: 1px 6px;
      border-radius: 8px;
      font-size: 0.7rem;
    }
    .namespaceChip.active .chipCount {
      background: rgba(255,255,255,0.3);
    }

    /* Sidebar Namespace Groups (table sidebar hierarchy) */
    .sidebarNamespaceGroup {
      margin-bottom: 4px;
    }
    .sidebarNamespaceHeader {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      background: var(--bg-secondary);
      border-radius: 4px;
      cursor: pointer;
      user-select: none;
      font-size: 0.8rem;
      transition: background 0.15s;
    }
    .sidebarNamespaceHeader:hover {
      background: var(--bg-tertiary);
    }
    .sidebarNamespaceHeader .nsToggle {
      color: var(--text-muted);
      font-size: 0.65rem;
      transition: transform 0.2s;
      width: 10px;
    }
    .sidebarNamespaceGroup.collapsed .nsToggle {
      transform: rotate(-90deg);
    }
    .sidebarNamespaceHeader .nsIcon {
      font-size: 0.85rem;
    }
    .sidebarNamespaceHeader .nsName {
      flex: 1;
      font-weight: 500;
      color: var(--text-primary);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .sidebarNamespaceHeader .nsCount {
      background: var(--accent-color);
      color: white;
      font-size: 0.6rem;
      padding: 1px 5px;
      border-radius: 6px;
      font-weight: 500;
    }
    .sidebarNamespaceTables {
      padding-left: 12px;
      border-left: 1px solid var(--border-color);
      margin-left: 8px;
    }
    .sidebarNamespaceGroup.collapsed .sidebarNamespaceTables {
      display: none;
    }

    /* Sidebar Namespace Dropdown Selector */
    .sidebarNsSelector {
      padding: 6px 10px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .nsCurrentSelection {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px 10px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.15s;
    }
    .nsCurrentSelection:hover {
      background: var(--bg-tertiary);
      border-color: var(--accent-color);
    }
    .nsSelIcon { font-size: 0.85rem; }
    .nsSelName {
      flex: 1;
      font-size: 0.8rem;
      font-weight: 500;
      color: var(--text-primary);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .nsSelChevron {
      font-size: 0.6rem;
      color: var(--text-muted);
      transition: transform 0.2s;
    }
    .sidebarNsSelector.open .nsSelChevron { transform: rotate(180deg); }
    .nsDropdown {
      position: absolute;
      top: 100%;
      left: 10px;
      right: 10px;
      background: var(--bg-primary);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      z-index: 100;
      max-height: 280px;
      overflow-y: auto;
      margin-top: 2px;
    }
    .nsDropdownItem {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      cursor: pointer;
      font-size: 0.8rem;
      color: var(--text-secondary);
      transition: background 0.15s;
    }
    .nsDropdownItem:hover {
      background: var(--bg-hover);
      color: var(--text-primary);
    }
    .nsDropdownItem.active {
      background: var(--accent-color);
      color: white;
    }
    .nsDropdownItem .nsItemIcon { font-size: 0.85rem; width: 16px; text-align: center; }
    .nsDropdownItem .nsItemName { flex: 1; }
    .nsDropdownItem .nsItemCount { font-size: 0.65rem; color: var(--text-muted); }
    .nsDropdownItem.active .nsItemCount { color: rgba(255,255,255,0.8); }
    .nsDropdownSeparator { height: 1px; background: var(--border-color); margin: 4px 0; }

    /* External Table Stats Grid */
    .table-stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 10px;
      margin-bottom: 16px;
    }
    .table-stat-card {
      padding: 10px 14px;
      border-radius: 8px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
    }
    .table-stat-title {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 2px;
    }
    .table-stat-value {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--text-primary);
    }
    .table-stat-detail {
      font-size: 0.7rem;
      color: var(--text-muted);
      margin-top: 2px;
    }
    /* Stat card color variations */
    .table-stat-rows {
      background: rgba(59, 130, 246, 0.08);
      border-color: rgba(59, 130, 246, 0.2);
    }
    .table-stat-rows .table-stat-title { color: #3b82f6; }
    .table-stat-size {
      background: rgba(16, 185, 129, 0.08);
      border-color: rgba(16, 185, 129, 0.2);
    }
    .table-stat-size .table-stat-title { color: #10b981; }
    .table-stat-columns {
      background: rgba(168, 85, 247, 0.08);
      border-color: rgba(168, 85, 247, 0.2);
    }
    .table-stat-columns .table-stat-title { color: #a855f7; }
    .table-stat-partitions {
      background: rgba(245, 158, 11, 0.08);
      border-color: rgba(245, 158, 11, 0.2);
    }
    .table-stat-partitions .table-stat-title { color: #f59e0b; }
    .table-stat-modified {
      background: rgba(99, 102, 241, 0.08);
      border-color: rgba(99, 102, 241, 0.2);
    }
    .table-stat-modified .table-stat-title { color: #6366f1; }

    /* External Table Usage Section */
    .table-usage-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 10px;
      margin-bottom: 16px;
    }