/**
 * TableCoreHeatmap — матрица SKU×дата, визуальный стиль согласован с TableCore4.
 */
:root {
  --tch-z-sticky: 12;
  --tch-heat-radius: 2px;
}

.table-core-heatmap-host {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  flex: 1 1 auto;
}

.table-core-heatmap-shell {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-width: 0;
  min-height: 0;
  flex: 1 1 auto;
}

.table-core-heatmap-scroll {
  overflow: auto;
  max-height: min(68vh, 52rem);
  border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  border-radius: 10px;
  background: var(--panel, #111827);
  min-height: 0;
}

.table-core-heatmap-zoom-wrap {
  transform-origin: top left;
  width: max-content;
  min-width: 100%;
}

.table-core-heatmap-table {
  width: max-content;
  min-width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.78rem;
  line-height: 1.25;
}

.table-core-heatmap-table thead th,
.table-core-heatmap-table thead td {
  position: sticky;
  top: 0;
  z-index: var(--tch-z-sticky);
  background: var(--panel-2, #1a2332);
  border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.12));
  padding: 0.35rem 0.5rem;
  text-align: center;
  white-space: normal;
  word-break: break-word;
  vertical-align: middle;
}

.table-core-heatmap-table thead tr.summary-row td {
  top: var(--tch-header-h, 2.2rem);
  font-size: 0.72rem;
  color: var(--muted, #94a3b8);
  background: var(--panel-2, #1a2332);
}

.table-core-heatmap-table th.tch-fixed-col {
  text-align: center;
  cursor: pointer;
  user-select: none;
}

.table-core-heatmap-table th.tch-date-col {
  cursor: pointer;
  user-select: none;
  min-width: 3.2rem;
}

.table-core-heatmap-table th.tch-date-col:hover,
.table-core-heatmap-table th.tch-fixed-col:hover {
  color: var(--accent, #3b82f6);
}

.table-core-heatmap-table .tch-drag-handle {
  cursor: move;
  opacity: 0.55;
  margin-right: 0.15rem;
  user-select: none;
}

.table-core-heatmap-table .tch-drag-handle:hover {
  opacity: 1;
}

.table-core-heatmap-table th.tch-pinned {
  position: sticky;
  left: var(--tch-pin-left, 0);
  z-index: calc(var(--tch-z-sticky) + 1);
}

.table-core-heatmap-table tbody td.tch-pinned {
  position: sticky;
  left: var(--tch-pin-left, 0);
  z-index: 2;
  background: var(--panel, #111827);
}

.table-core-heatmap-table tbody tr:hover td:not(.tch-heat) {
  background: rgba(59, 130, 246, 0.06);
}

.table-core-heatmap-table tbody td {
  padding: 0.3rem 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  vertical-align: middle;
}

.table-core-heatmap-table tbody td.tch-fixed-col {
  text-align: left;
  white-space: normal;
}

.table-core-heatmap-table tbody td.tch-fixed-col.tch-align-right {
  text-align: right;
}

.table-core-heatmap-table tbody td.tch-heat {
  text-align: center;
  border-radius: var(--tch-heat-radius);
  font-variant-numeric: tabular-nums;
}

.table-core-heatmap-table tbody td.tch-empty {
  color: var(--muted, #64748b);
}

.table-core-heatmap-sort-mark {
  opacity: 0.85;
  font-size: 0.7em;
}

.table-core-heatmap-state {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 4.5rem;
  padding: 1rem 1.1rem;
  border: 1px dashed var(--border, rgba(255, 255, 255, 0.12));
  border-radius: 10px;
  background: var(--panel-2, #161f2e);
  color: var(--muted, #94a3b8);
  font-size: 0.86rem;
}

.table-core-heatmap-state--error {
  border-color: rgba(248, 113, 113, 0.45);
  color: #fecaca;
}

.table-core-heatmap-state--loading {
  color: var(--text, #e2e8f0);
}

.table-core-heatmap-state__spinner {
  width: 1.1rem;
  height: 1.1rem;
  border: 2px solid rgba(148, 163, 184, 0.35);
  border-top-color: var(--accent, #3b82f6);
  border-radius: 50%;
  animation: tch-spin 0.75s linear infinite;
}

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