/* Arcadia DataGrid
   Usage: <link href="_content/Arcadia.DataGrid/css/arcadia-datagrid.css" rel="stylesheet" />

   Theme via CSS custom properties:
   --arcadia-grid-bg           : body background
   --arcadia-grid-header-bg    : header/footer/toolbar background
   --arcadia-grid-header-hover : header hover
   --arcadia-grid-row-bg       : default row background
   --arcadia-grid-row-alt      : striped row background
   --arcadia-grid-row-hover    : row hover
   --arcadia-grid-row-selected : selected row background
   --arcadia-grid-border       : all borders
   --arcadia-grid-text         : cell text
   --arcadia-grid-text-muted   : secondary text (headers, pagination)
   --arcadia-grid-accent       : primary accent (sort icon, selection, edit border)
*/

/* ── Base ── */
.arcadia-grid {
  --_bg: var(--arcadia-grid-bg, var(--arcadia-color-surface, #0f0d1a));
  --_header: var(--arcadia-grid-header-bg, var(--arcadia-color-surface-raised, #16132a));
  --_border: var(--arcadia-grid-border, var(--arcadia-color-border, rgba(139,92,246,0.12)));
  --_text: var(--arcadia-grid-text, var(--arcadia-color-text, #e8e6f0));
  --_muted: var(--arcadia-grid-text-muted, var(--arcadia-color-text-muted, #8a86a8));
  --_accent: var(--arcadia-grid-accent, var(--arcadia-color-primary, #8b5cf6));
  --_row-bg: var(--arcadia-grid-row-bg, transparent);
  --_row-alt: var(--arcadia-grid-row-alt, rgba(139,92,246,0.03));
  --_row-hover: var(--arcadia-grid-row-hover, rgba(139,92,246,0.07));
  --_row-selected: var(--arcadia-grid-row-selected, rgba(139,92,246,0.14));

  position: relative;
  font-family: var(--arcadia-font-family, system-ui, -apple-system, sans-serif);
  font-size: var(--arcadia-text-sm, 0.875rem);
  color: var(--_text);
  background: var(--_bg);
  border: 1px solid var(--_border);
  border-radius: var(--arcadia-radius-lg, 0.75rem);
  overflow: hidden;
}

/* ── Table ── */
.arcadia-grid__table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  background: var(--_bg);
}

/* ── Header ── */
.arcadia-grid__thead--sticky {
  position: sticky;
  top: 0;
  z-index: 2;
}

.arcadia-grid__th {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--_muted);
  background: var(--_header);
  border-bottom: 1px solid var(--_border);
  white-space: nowrap;
  user-select: none;
}

.arcadia-grid__th--sortable {
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}
.arcadia-grid__th--sortable:hover {
  color: var(--_text);
  background: var(--arcadia-grid-header-hover, rgba(139,92,246,0.06));
}

.arcadia-grid__sort-icon {
  margin-left: 6px;
  font-size: 0.6rem;
  opacity: 0.4;
}
th[aria-sort="ascending"] .arcadia-grid__sort-icon,
th[aria-sort="descending"] .arcadia-grid__sort-icon {
  opacity: 1;
  color: var(--_accent);
}

/* ── Cells ── */
.arcadia-grid__td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--_border);
  background: var(--_row-bg);
  font-variant-numeric: tabular-nums;
}

/* ── Striped ── */
.arcadia-grid--striped tbody tr:nth-child(even) > .arcadia-grid__td {
  background: var(--_row-alt);
}

/* ── Hover ── */
.arcadia-grid--hoverable tbody tr {
  transition: background 0.1s ease;
}
.arcadia-grid--hoverable tbody tr:hover > .arcadia-grid__td {
  background: var(--_row-hover);
}

/* ── Dense ── */
.arcadia-grid--dense .arcadia-grid__th,
.arcadia-grid--dense .arcadia-grid__td {
  padding: 6px 12px;
}

/* ── Empty state ── */
.arcadia-grid__empty {
  padding: 48px 16px;
  text-align: center;
  color: var(--_muted);
  font-style: italic;
  background: var(--_bg);
}

/* ── Loading skeleton ── */
.arcadia-grid__loading {
  padding: 16px;
  background: var(--_bg);
}
.arcadia-grid__skeleton-row {
  height: 36px;
  margin-bottom: 8px;
  border-radius: var(--arcadia-radius-sm, 0.25rem);
  background: linear-gradient(90deg, transparent 25%, rgba(139,92,246,0.06) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: arcadia-grid-shimmer 1.5s infinite;
}
@keyframes arcadia-grid-shimmer { to { background-position: -200% 0; } }

/* ── SSR skeleton (data not yet loaded) ── */
.arcadia-grid__loading--ssr {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.arcadia-grid__skeleton-header {
  display: flex;
  gap: 8px;
  padding: 8px 16px;
  border-bottom: 2px solid var(--_border, rgba(139,92,246,0.12));
}
.arcadia-grid__skeleton-hcell {
  flex: 1;
  height: 18px;
  border-radius: var(--arcadia-radius-sm, 0.25rem);
  background: linear-gradient(90deg, transparent 25%, rgba(139,92,246,0.10) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: arcadia-grid-shimmer 1.5s infinite;
}
.arcadia-grid__loading--ssr .arcadia-grid__skeleton-row {
  display: flex;
  gap: 8px;
  padding: 6px 16px;
  height: auto;
  margin-bottom: 0;
  background: none;
  animation: none;
  border-bottom: 1px solid var(--_border, rgba(139,92,246,0.06));
}
.arcadia-grid__skeleton-cell {
  flex: 1;
  height: 14px;
  border-radius: var(--arcadia-radius-sm, 0.25rem);
  background: linear-gradient(90deg, transparent 25%, rgba(139,92,246,0.06) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: arcadia-grid-shimmer 1.5s infinite;
}

/* ── Toolbar ── */
.arcadia-grid__toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--_border);
  background: var(--_header);
}

.arcadia-grid__filter-toggle {
  border: 1px solid var(--_border);
  background: transparent;
  color: var(--_muted);
  padding: 5px 14px;
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  transition: all 0.15s ease;
}
.arcadia-grid__filter-toggle:hover,
.arcadia-grid__filter-toggle--active {
  background: rgba(139,92,246,0.1);
  color: var(--_accent);
  border-color: var(--_accent);
}

/* Export buttons — distinct from filter toggles */
.arcadia-grid__export-btn {
  border: 1px solid var(--_border);
  background: transparent;
  color: var(--_muted);
  padding: 5px 14px;
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  transition: all 0.15s ease;
  margin-left: 2px;
}
.arcadia-grid__export-btn::before {
  content: '↓ ';
  font-size: 0.625rem;
}
.arcadia-grid__export-btn:hover {
  background: rgba(22,163,74,0.1);
  color: var(--arcadia-color-success, #16a34a);
  border-color: var(--arcadia-color-success, #16a34a);
}
.arcadia-grid__export-btn:focus-visible {
  outline: 2px solid var(--_accent);
  outline-offset: -2px;
}

.arcadia-grid__selection-count {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--_accent);
  margin-left: auto;
}

/* ── Filter row ── */
.arcadia-grid__filter-row .arcadia-grid__th {
  padding: 4px 8px;
  background: var(--_header);
}

.arcadia-grid__filter-input {
  width: 100%;
  padding: 5px 10px;
  border: 1px solid var(--_border);
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  background: var(--_bg);
  color: var(--_text);
  font-family: inherit;
  font-size: 0.75rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.arcadia-grid__filter-input:focus {
  border-color: var(--_accent);
  box-shadow: 0 0 0 2px rgba(139,92,246,0.15);
}
.arcadia-grid__filter-input::placeholder {
  color: var(--_muted);
  opacity: 0.5;
}

/* ── Checkbox cells ── */
.arcadia-grid__th--checkbox,
.arcadia-grid__td--checkbox {
  text-align: center;
  width: 40px;
}
.arcadia-grid__td--checkbox input[type="checkbox"],
.arcadia-grid__th--checkbox input[type="checkbox"] {
  accent-color: var(--_accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* ── Selected row ── */
.arcadia-grid__row--selected > .arcadia-grid__td {
  background: var(--_row-selected) !important;
}

/* ── Column picker ── */
.arcadia-grid__column-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--_border);
  background: var(--_header);
}
.arcadia-grid__column-picker-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  cursor: pointer;
  color: var(--_muted);
  transition: color 0.1s;
}
.arcadia-grid__column-picker-item:hover { color: var(--_text); }
.arcadia-grid__column-picker-item input { accent-color: var(--_accent); }

/* ── Detail / expand ── */
.arcadia-grid__td--expand {
  text-align: center;
  cursor: pointer;
  width: 36px;
  padding: 6px !important;
}
.arcadia-grid__expand-icon {
  display: inline-block;
  transition: transform 0.2s ease, color 0.15s ease;
  font-size: 0.7rem;
  color: var(--_muted);
}
.arcadia-grid__td--expand:hover .arcadia-grid__expand-icon { color: var(--_accent); }
.arcadia-grid__expand-icon--open { transform: rotate(90deg); color: var(--_accent); }

.arcadia-grid__detail-row > .arcadia-grid__detail-cell {
  background: rgba(139,92,246,0.03);
  border-bottom: 1px solid var(--_border);
}
.arcadia-grid__detail-cell {
  padding: 16px 16px 16px 52px !important;
}

/* ── Footer aggregates ── */
.arcadia-grid__tfoot--sticky {
  position: sticky;
  bottom: 0;
  z-index: 2;
}
.arcadia-grid__footer-row > .arcadia-grid__td--footer {
  background: var(--_header);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--_accent);
  border-top: 2px solid var(--_border);
}

/* ── Inline editing ── */
.arcadia-grid__td--editing {
  padding: 3px 4px !important;
  background: rgba(139,92,246,0.06) !important;
}
.arcadia-grid__edit-input {
  width: 100%;
  padding: 7px 10px;
  border: 2px solid var(--_accent);
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  background: var(--_bg);
  color: var(--_text);
  font-family: inherit;
  font-size: inherit;
  outline: none;
  box-shadow: 0 0 0 3px rgba(139,92,246,0.12);
}

/* ── Edit validation ── */
.arcadia-grid__edit-wrapper {
  position: relative;
}
.arcadia-grid__edit-input--invalid {
  border-color: var(--arcadia-color-danger, #dc2626) !important;
  box-shadow: 0 0 0 3px rgba(220,38,38,0.15) !important;
}
.arcadia-grid__edit-error {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding: 4px 8px;
  margin-top: 2px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--arcadia-color-danger, #dc2626);
  background: var(--_bg, #0f0d1a);
  border: 1px solid var(--arcadia-color-danger, #dc2626);
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  z-index: 10;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* ── Group header ── */
.arcadia-grid__group-row > td {
  background: var(--_header);
  cursor: pointer;
  transition: background 0.1s;
}
.arcadia-grid__group-row:hover > td { background: rgba(139,92,246,0.06); }
.arcadia-grid__group-cell {
  padding: 10px 16px !important;
  font-weight: 600;
  color: var(--_text);
}
.arcadia-grid__group-count {
  font-weight: 400;
  color: var(--_muted);
  margin-left: 8px;
  font-size: 0.75rem;
}
.arcadia-grid__group-agg {
  margin-left: 16px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--_accent);
  font-variant-numeric: tabular-nums;
}
.arcadia-grid__group-agg-label {
  font-weight: 400;
  color: var(--_muted);
  margin-right: 4px;
}

/* ── Pagination ── */
.arcadia-grid__pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 0.75rem;
  color: var(--_muted);
  border-top: 1px solid var(--_border);
  background: var(--_header);
}

.arcadia-grid__page-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.arcadia-grid__page-btn {
  border: 1px solid var(--_border);
  background: transparent;
  color: var(--_muted);
  padding: 4px 10px;
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  transition: all 0.15s ease;
}
.arcadia-grid__page-btn:hover:not(:disabled) {
  background: rgba(139,92,246,0.1);
  color: var(--_text);
}
.arcadia-grid__page-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.arcadia-grid__page-current {
  padding: 0 10px;
  white-space: nowrap;
  color: var(--_text);
  font-weight: 500;
}

.arcadia-grid__page-size {
  border: 1px solid var(--_border);
  background: var(--_bg);
  color: var(--_text);
  padding: 4px 10px;
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  font-family: inherit;
  font-size: inherit;
}

.arcadia-grid__page-info {
  white-space: nowrap;
}

/* ── Light theme override ── */
[data-arcadia-theme="light"] .arcadia-grid,
.arcadia-grid[data-theme="light"] {
  --_bg: var(--arcadia-grid-bg, #ffffff);
  --_header: var(--arcadia-grid-header-bg, #f8f7fc);
  --_border: var(--arcadia-grid-border, #e8e5f0);
  --_text: var(--arcadia-grid-text, #1a1625);
  --_muted: var(--arcadia-grid-text-muted, #6b6580);
  --_row-alt: var(--arcadia-grid-row-alt, #faf9fd);
  --_row-hover: var(--arcadia-grid-row-hover, #f3f0fa);
  --_row-selected: var(--arcadia-grid-row-selected, #ece8f8);
}

/* ================================================================
   UNIVERSAL IMPROVEMENTS
   ================================================================ */

/* ── Row Selector ── */
.arcadia-grid__th--row-selector {
  width: 42px;
  text-align: center;
  font-weight: 500;
  font-size: 0.7rem;
  color: var(--_muted);
  padding: 8px 4px !important;
}
.arcadia-grid__td--row-selector {
  width: 42px;
  text-align: center;
  padding: 6px 4px !important;
  cursor: pointer;
  user-select: none;
  border-right: 1px solid var(--_border);
  background: var(--_header) !important;
  transition: background 0.1s;
}
.arcadia-grid__td--row-selector:hover {
  background: var(--_row-hover) !important;
}
.arcadia-grid__row-number {
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
  color: var(--_muted);
}
.arcadia-grid__row--current .arcadia-grid__row-number {
  color: var(--_accent);
  font-weight: 600;
}
.arcadia-grid__row--selected .arcadia-grid__td--row-selector {
  background: var(--_row-selected) !important;
}
.arcadia-grid__row--selected .arcadia-grid__row-number {
  color: var(--_text);
  font-weight: 600;
}
.arcadia-grid__row-glyph {
  font-size: 0.7rem;
  color: var(--_accent);
}
.arcadia-grid__row--current > .arcadia-grid__td:first-child {
  box-shadow: inset 3px 0 0 var(--_accent);
}

/* Cell text truncation */
.arcadia-grid__td > span,
.arcadia-grid__td > :not(button):not(input) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Focus-visible for keyboard nav */
.arcadia-grid__th--sortable:focus-visible,
.arcadia-grid__page-btn:focus-visible,
.arcadia-grid__filter-toggle:focus-visible {
  outline: 2px solid var(--_accent);
  outline-offset: -2px;
}

/* Density modes */
.arcadia-grid--compact .arcadia-grid__th,
.arcadia-grid--compact .arcadia-grid__td { padding: 6px 12px; }
.arcadia-grid--compact { font-size: 0.8rem; }

.arcadia-grid--relaxed .arcadia-grid__th { padding: 14px 20px; }
.arcadia-grid--relaxed .arcadia-grid__td { padding: 16px 20px; }
.arcadia-grid--relaxed { font-size: 0.925rem; }

/* ================================================================
   THEMES — apply via class: <ArcadiaDataGrid Class="arcadia-grid--obsidian">
   ================================================================ */

/* ── 1. Obsidian — Ultra-minimal (Linear/shadcn) ── */
.arcadia-grid--obsidian {
  --_bg: #09090B;
  --_header: #09090B;
  --_border: #1F1F23;
  --_text: #FAFAFA;
  --_muted: #71717A;
  --_accent: #6366F1;
  --_row-bg: transparent;
  --_row-alt: rgba(255,255,255,0.02);
  --_row-hover: #1A1A1F;
  --_row-selected: rgba(99,102,241,0.08);
  border: 1px solid #1F1F23;
}
.arcadia-grid--obsidian .arcadia-grid__th {
  text-transform: none;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0;
}
.arcadia-grid--obsidian .arcadia-grid__td {
  border-bottom-color: rgba(255,255,255,0.04);
}

/* ── 2. Vapor — Frosted Glass ── */
.arcadia-grid--vapor {
  --_bg: #12111a;
  --_header: #18172a;
  --_border: rgba(129,140,248,0.1);
  --_text: #E4E4E7;
  --_muted: #8888A0;
  --_accent: #818CF8;
  --_row-bg: #12111a;
  --_row-alt: #151422;
  --_row-hover: rgba(129,140,248,0.06);
  --_row-selected: rgba(129,140,248,0.12);
  border-radius: 14px;
  border: 1px solid rgba(129,140,248,0.12);
  box-shadow: 0 0 0 1px rgba(129,140,248,0.06),
              0 0 40px rgba(129,140,248,0.04),
              0 8px 32px rgba(0,0,0,0.3);
  background: linear-gradient(180deg, #18172a 0%, #12111a 100%);
}
.arcadia-grid--vapor .arcadia-grid__thead--sticky {
  background: #18172a;
}
.arcadia-grid--vapor .arcadia-grid__th {
  text-transform: none;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0;
  background: #18172a;
  border-bottom-color: rgba(129,140,248,0.08);
}
.arcadia-grid--vapor .arcadia-grid__td {
  padding: 14px 20px;
  border-bottom-color: rgba(129,140,248,0.06);
}
.arcadia-grid--vapor .arcadia-grid__toolbar,
.arcadia-grid--vapor .arcadia-grid__pagination {
  background: #18172a;
}
.arcadia-grid--vapor .arcadia-grid__filter-toggle:hover,
.arcadia-grid--vapor .arcadia-grid__filter-toggle--active {
  background: rgba(129,140,248,0.1);
  border-color: rgba(129,140,248,0.3);
}
.arcadia-grid--vapor .arcadia-grid__td--footer {
  color: #818CF8;
}

/* ── 3. Carbon — Stripe Enterprise ── */
.arcadia-grid--carbon {
  --_bg: #111118;
  --_header: #19192A;
  --_border: #25253A;
  --_text: #F0F0F5;
  --_muted: #8888A0;
  --_accent: #635BFF;
  --_row-bg: #111118;
  --_row-alt: #0E0E18;
  --_row-hover: #14142A;
  --_row-selected: rgba(99,91,255,0.1);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.arcadia-grid--carbon .arcadia-grid__th {
  text-transform: none;
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  border-right: 1px solid rgba(37,37,58,0.5);
}
.arcadia-grid--carbon .arcadia-grid__td {
  border-right: 1px solid rgba(37,37,58,0.3);
  padding: 9px 14px;
}
.arcadia-grid--carbon .arcadia-grid__th:last-child,
.arcadia-grid--carbon .arcadia-grid__td:last-child { border-right: none; }

/* ── 4. Aurora — Gradient Accent ── */
.arcadia-grid--aurora {
  --_bg: #0C0C0E;
  --_header: #0C0C0E;
  --_border: #232326;
  --_text: #F5F5F7;
  --_muted: #6E6E78;
  --_accent: #8B5CF6;
  --_row-bg: transparent;
  --_row-alt: rgba(139,92,246,0.02);
  --_row-hover: #1C1C20;
  --_row-selected: transparent;
  border-radius: 10px;
}
.arcadia-grid--aurora .arcadia-grid__row--selected > .arcadia-grid__td {
  background: linear-gradient(135deg, rgba(139,92,246,0.06), rgba(59,130,246,0.06)) !important;
}
.arcadia-grid--aurora .arcadia-grid__th {
  text-transform: none;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0;
}
.arcadia-grid--aurora th[aria-sort="ascending"] .arcadia-grid__sort-icon,
.arcadia-grid--aurora th[aria-sort="descending"] .arcadia-grid__sort-icon {
  background: linear-gradient(135deg, #8B5CF6, #3B82F6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.arcadia-grid--aurora .arcadia-grid__filter-toggle--active {
  background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(59,130,246,0.15));
  border-image: linear-gradient(135deg, #8B5CF6, #3B82F6) 1;
}

/* ── 5. Slate — Notion Warm Neutral ── */
.arcadia-grid--slate {
  --_bg: #191919;
  --_header: #191919;
  --_border: #2E2E2E;
  --_text: #E8E5E0;
  --_muted: #9B9A97;
  --_accent: #2EAADC;
  --_row-bg: transparent;
  --_row-alt: rgba(155,154,151,0.03);
  --_row-hover: #252525;
  --_row-selected: rgba(46,170,220,0.08);
  border-radius: 4px;
  border-color: #2E2E2E;
}
.arcadia-grid--slate .arcadia-grid__th {
  text-transform: none;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0;
  color: #787774;
}
.arcadia-grid--slate .arcadia-grid__td {
  font-size: 0.9rem;
  border-bottom-color: rgba(255,255,255,0.04);
}

/* ── 6. Midnight — Vercel High-Contrast ── */
.arcadia-grid--midnight {
  --_bg: #000000;
  --_header: #0A0A0A;
  --_border: #1A1A1A;
  --_text: #EDEDED;
  --_muted: #888888;
  --_accent: #0070F3;
  --_row-bg: #000000;
  --_row-alt: #050505;
  --_row-hover: #111111;
  --_row-selected: rgba(0,112,243,0.08);
  border-radius: 6px;
  border-color: #1A1A1A;
}
.arcadia-grid--midnight .arcadia-grid__th {
  text-transform: none;
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}
.arcadia-grid--midnight .arcadia-grid__td {
  border-right: 1px solid #0D0D0D;
  padding: 9px 14px;
}
.arcadia-grid--midnight .arcadia-grid__td:last-child { border-right: none; }

/* ── Light variants for themed grids ── */
.arcadia-grid--obsidian-light {
  --_bg: #FFFFFF; --_header: #FFFFFF; --_border: #E4E4E7; --_text: #09090B;
  --_muted: #71717A; --_accent: #4F46E5; --_row-alt: #F4F4F5; --_row-hover: #F4F4F5; --_row-selected: #EEF2FF;
}
.arcadia-grid--carbon-light {
  --_bg: #FFFFFF; --_header: #F6F8FA; --_border: #E3E8EE; --_text: #1A1F36;
  --_muted: #697386; --_accent: #635BFF; --_row-alt: #F9FAFB; --_row-hover: #F0F2F5; --_row-selected: #F0EDFF;
}
.arcadia-grid--slate-light {
  --_bg: #FFFFFF; --_header: #FFFFFF; --_border: #E9E9E7; --_text: #37352F;
  --_muted: #787774; --_accent: #2EAADC; --_row-alt: #F7F6F3; --_row-hover: #F7F6F3; --_row-selected: #E8F6FC;
}
.arcadia-grid--midnight-light {
  --_bg: #FFFFFF; --_header: #FAFAFA; --_border: #EAEAEA; --_text: #000000;
  --_muted: #666666; --_accent: #0070F3; --_row-alt: #FAFAFA; --_row-hover: #F5F5F5; --_row-selected: #EBF5FF;
}

/* ================================================================
   ANIMATIONS
   ================================================================ */

/* Row enter animation on page change */
@keyframes arcadia-grid-row-enter {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.arcadia-grid tbody tr[role="row"] {
  animation: arcadia-grid-row-enter 0.15s ease-out both;
}
.arcadia-grid tbody tr[role="row"]:nth-child(1) { animation-delay: 0ms; }
.arcadia-grid tbody tr[role="row"]:nth-child(2) { animation-delay: 15ms; }
.arcadia-grid tbody tr[role="row"]:nth-child(3) { animation-delay: 30ms; }
.arcadia-grid tbody tr[role="row"]:nth-child(4) { animation-delay: 45ms; }
.arcadia-grid tbody tr[role="row"]:nth-child(5) { animation-delay: 60ms; }
.arcadia-grid tbody tr[role="row"]:nth-child(n+6) { animation-delay: 75ms; }

/* Detail row expand/collapse */
.arcadia-grid__detail-row {
  animation: arcadia-grid-row-enter 0.2s ease-out both;
}

/* Smooth background transitions on all interactive rows */
.arcadia-grid tbody tr {
  transition: background-color 0.12s ease;
}

/* Column header drag states */
.arcadia-grid__th--dragging {
  opacity: 0.4;
  background: var(--_accent) !important;
}
.arcadia-grid__th--drop-target {
  box-shadow: inset -3px 0 0 var(--_accent);
}

/* Column resize handle */
.arcadia-grid__resize-handle {
  position: absolute;
  right: -4px;
  top: 0;
  bottom: 0;
  width: 9px;
  cursor: col-resize;
  user-select: none;
  z-index: 3;
  transition: background 0.15s;
}
.arcadia-grid__resize-handle::after {
  content: '';
  position: absolute;
  right: 4px;
  top: 25%;
  bottom: 25%;
  width: 1px;
  background: var(--_border, rgba(139,92,246,0.12));
  transition: background 0.15s, width 0.15s;
}
.arcadia-grid__resize-handle:hover::after,
.arcadia-grid__resize-handle--active::after {
  background: var(--_accent, #8b5cf6);
  width: 2px;
  top: 10%;
  bottom: 10%;
}
.arcadia-grid__resize-handle:hover,
.arcadia-grid__resize-handle--active {
  background: rgba(139,92,246,0.08);
}
.arcadia-grid__th { position: relative; overflow: hidden; } /* enable resize handle positioning, clip handle */

/* Column drag visual feedback */
.arcadia-grid__th--dragging {
  opacity: 0.5;
}
.arcadia-grid__th--drop-target {
  border-left: 2px solid var(--_accent, #8b5cf6) !important;
}

/* ── Keyboard focus cell ── */
.arcadia-grid__td--focused {
  box-shadow: inset 0 0 0 2px var(--_accent) !important;
}
.arcadia-grid:focus { outline: none; }

/* ── Frozen / pinned columns ── */
.arcadia-grid__th--frozen,
.arcadia-grid__td--frozen {
  position: sticky !important;
  z-index: 1;
  background: var(--_bg) !important;
}
.arcadia-grid__th--frozen { z-index: 3 !important; }
.arcadia-grid__th--frozen::after,
.arcadia-grid__td--frozen::after {
  content: "";
  position: absolute;
  right: -4px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to right, rgba(0,0,0,0.08), transparent);
  pointer-events: none;
}

/* ── Virtual Scroll ── */
.arcadia-grid__scroll-container {
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.arcadia-grid__virtual-header {
  display: grid;
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--_header);
  border-bottom: 1px solid var(--_border);
}

.arcadia-grid__virtual-hcell {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--_muted);
  cursor: pointer;
  user-select: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.15s;
}
.arcadia-grid__virtual-hcell:hover { color: var(--_text); }
.arcadia-grid__virtual-hcell--sorted { color: var(--_accent); }

.arcadia-grid__virtual-row {
  display: grid;
  border-bottom: 1px solid var(--_border);
  background: var(--_row-bg);
  transition: background 0.1s;
}
.arcadia-grid__virtual-row:nth-child(even) {
  background: var(--_row-alt);
}
.arcadia-grid__virtual-row:hover {
  background: var(--_row-hover);
}

.arcadia-grid__virtual-cell {
  padding: 11px 16px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ── Smooth Scrollbar ── */
.arcadia-grid::-webkit-scrollbar,
.arcadia-grid__scroll-container::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.arcadia-grid::-webkit-scrollbar-track,
.arcadia-grid__scroll-container::-webkit-scrollbar-track {
  background: var(--_bg);
}
.arcadia-grid::-webkit-scrollbar-thumb,
.arcadia-grid__scroll-container::-webkit-scrollbar-thumb {
  background: var(--_border);
  border-radius: 4px;
}
.arcadia-grid::-webkit-scrollbar-thumb:hover,
.arcadia-grid__scroll-container::-webkit-scrollbar-thumb:hover {
  background: var(--_muted);
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .arcadia-grid__skeleton-row,
  .arcadia-grid tbody tr[role="row"],
  .arcadia-grid__detail-row {
    animation: none !important;
  }
}

/* Filter cell with operator dropdown */
.arcadia-grid__filter-cell { display: flex; gap: 2px; }
.arcadia-grid__filter-op {
  background: var(--_row, rgba(255,255,255,0.03));
  border: 1px solid var(--_border, rgba(139,92,246,0.12));
  border-radius: 4px; color: var(--_muted, #6b6890);
  font-size: 10px; padding: 2px; cursor: pointer;
  width: 56px; flex-shrink: 0;
}
.arcadia-grid__filter-op:focus { border-color: var(--_accent, #8b5cf6); outline: none; }

/* Quick filter search input */
.arcadia-grid__search-input {
  background: var(--_row, rgba(255,255,255,0.03));
  border: 1px solid var(--_border, rgba(139,92,246,0.12));
  border-radius: 6px; color: var(--_text, #e2e0f0);
  padding: 4px 10px; font-size: 12px; width: 200px;
  outline: none; transition: border-color 0.15s;
}
.arcadia-grid__search-input:focus {
  border-color: var(--_accent, #8b5cf6);
}
.arcadia-grid__search-input::placeholder { color: var(--_muted, #6b6890); }

/* Column header menu (right-click pin/hide) */
.arcadia-grid__col-menu {
  background: var(--_header, #151023); border: 1px solid var(--_border, rgba(139,92,246,0.2));
  border-radius: 8px; padding: 4px 0; min-width: 150px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4); font-size: 13px;
}
.arcadia-grid__col-menu-item {
  display: block; width: 100%; text-align: left; padding: 8px 14px;
  background: transparent; border: none; color: var(--_text, #e2e0f0);
  cursor: pointer; font-size: 0.8125rem; font-family: inherit;
  transition: background 0.1s;
}
.arcadia-grid__col-menu-item:hover { background: rgba(139,92,246,0.1); }

/* Context menu */
.arcadia-grid__context-menu {
  background: var(--_header, #151023); border: 1px solid var(--_border, rgba(139,92,246,0.2));
  border-radius: 8px; padding: 4px 0; min-width: 160px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4); font-size: 13px;
}

/* Batch edit UI */
.arcadia-grid__batch-info { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--_accent, #8b5cf6); }
.arcadia-grid__batch-btn {
  background: transparent; border: 1px solid var(--_border, rgba(139,92,246,0.2));
  color: var(--_text, #e2e0f0); font-size: 11px; padding: 2px 10px;
  border-radius: 4px; cursor: pointer; transition: all 0.15s;
}
.arcadia-grid__batch-btn--save { border-color: var(--arcadia-color-success, #16a34a); color: var(--arcadia-color-success, #16a34a); }
.arcadia-grid__batch-btn--save:hover { background: rgba(22,163,74,0.15); }
.arcadia-grid__batch-btn--discard:hover { background: rgba(220,38,38,0.15); color: var(--arcadia-color-danger, #dc2626); }
.arcadia-grid__td--batch-modified { background: rgba(139,92,246,0.08) !important; border-left: 2px solid var(--_accent, #8b5cf6); }

/* Row reorder drop target */
.arcadia-grid__row--drop-target { border-top: 2px solid var(--_accent, #8b5cf6) !important; }
.arcadia-grid__td--drag-handle { user-select: none; }

/* Sort priority badge (multi-column sort) */
.arcadia-grid__sort-priority {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 14px; height: 14px; font-size: 9px; font-weight: 700;
  border-radius: 7px; background: var(--_accent, #8b5cf6); color: #fff;
  margin-left: 2px; padding: 0 3px; line-height: 1;
}

/* ── Conditional Formatting ── */

/* DataBar: horizontal bar behind cell value */
.arcadia-grid__cf-databar {
  position: relative;
}
.arcadia-grid__cf-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: rgba(139, 92, 246, 0.12);
  border-radius: 2px;
  pointer-events: none;
  z-index: 0;
  transition: width 0.3s ease;
}
.arcadia-grid__cf-databar > :not(.arcadia-grid__cf-bar) {
  position: relative;
  z-index: 1;
}

/* RedGreenScale: background applied via inline style */
.arcadia-grid__cf-redgreen {
  transition: background 0.3s ease;
}

/* IconSet: arrow icons */
.arcadia-grid__cf-icon {
  display: inline-block;
  margin-right: 6px;
  font-size: 0.85em;
  line-height: 1;
}
.arcadia-grid__cf-iconset .arcadia-grid__cf-icon {
  color: var(--_accent);
}

/* ── Frozen Right shadow (mirrored from left) ── */
.arcadia-grid__td[style*="right:0"],
.arcadia-grid__th[style*="right:0"] {
  z-index: 1;
}
.arcadia-grid__td[style*="right:0"]::before,
.arcadia-grid__th[style*="right:0"]::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to left, rgba(0,0,0,0.08), transparent);
  pointer-events: none;
}

/* ── Infinite Scroll ── */
.arcadia-grid__infinite-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  font-size: 0.8rem;
  color: var(--_muted);
  border-top: 1px solid var(--_border);
  background: var(--_header);
}
.arcadia-grid__infinite-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--_border);
  border-top-color: var(--_accent);
  border-radius: 50%;
  animation: arcadia-grid-spin 0.6s linear infinite;
}
@keyframes arcadia-grid-spin { to { transform: rotate(360deg); } }

/* ── Tooltip ── */
.arcadia-grid__tooltip-wrapper {
  position: relative;
}
.arcadia-grid__tooltip {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 6px;
  padding: 6px 10px;
  font-size: 0.72rem;
  font-weight: 500;
  color: #fff;
  background: #1a1625;
  border: 1px solid var(--_border, rgba(139,92,246,0.2));
  border-radius: var(--arcadia-radius-sm, 0.375rem);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  white-space: nowrap;
  z-index: 100;
  pointer-events: none;
}
.arcadia-grid__tooltip-wrapper:hover .arcadia-grid__tooltip {
  display: block;
}
[data-arcadia-theme="light"] .arcadia-grid__tooltip,
.arcadia-grid[data-theme="light"] .arcadia-grid__tooltip {
  color: #fff;
  background: #1a1625;
}

/* ── Column Reorder (drag-and-drop) ── */
.arcadia-grid__th--reorderable {
  cursor: grab;
}
.arcadia-grid__th--reorderable:active {
  cursor: grabbing;
}
.arcadia-grid__th--drag-over {
  border-left: 3px solid var(--_accent, #8b5cf6) !important;
}

/* ── Stacked / Grouped Column Headers ── */
.arcadia-grid__header-group th {
  text-align: center;
  background: var(--_header);
  border-bottom: 2px solid var(--_border);
  color: var(--_muted);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 16px;
}
.arcadia-grid__th--group {
  background: color-mix(in srgb, var(--_header) 90%, var(--_accent) 10%) !important;
}
.arcadia-grid__th--group:not(:last-child) {
  border-right: 1px solid var(--_border);
}

/* Screen reader only */
.arcadia-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }