/* ------------------------------------------------------------------- matrix */

.matrix-shell {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  scrollbar-color: var(--border-strong) transparent;
  scrollbar-width: thin;
}
.matrix-shell::-webkit-scrollbar {
  height: 7px;
}
.matrix-shell::-webkit-scrollbar-track {
  background: transparent;
}
.matrix-shell::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: var(--border-strong);
}
.matrix-shell.can-scroll-right {
  box-shadow: inset -12px 0 10px -12px rgb(0 0 0 / 45%);
}
.matrix-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: var(--text-body);
  font-variant-numeric: tabular-nums;
}
.matrix-table th,
.matrix-table td {
  min-height: calc(var(--row-height) + 12px);
  padding: 0;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.matrix-table tr:last-child > * {
  border-bottom: 0;
}
.matrix-table tr > *:last-child {
  border-right: 0;
}
.matrix-table thead th {
  min-height: calc(var(--row-height) + 12px);
  padding: 0;
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: var(--text-body);
  font-weight: 500;
  text-align: left;
  white-space: normal;
  overflow-wrap: anywhere;
}
/* The overall column summarises a model across harnesses. */
.matrix-overall-head {
  width: 6rem;
  padding-inline: var(--pad-cell) !important;
  color: var(--text);
}
.matrix-model-column {
  position: sticky;
  left: 0;
  z-index: 2;
  width: 10rem;
}
/* A continuous left stripe ties the model summary to its provider rows. */
.matrix-table tbody .matrix-expanded-model::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: -1px;
  left: 0;
  width: 2px;
  background: var(--blue);
  pointer-events: none;
}
.matrix-table thead .matrix-model-column {
  z-index: 3;
  background: var(--surface);
}
.matrix-model-column::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-strong);
  pointer-events: none;
}
.matrix-shell.can-scroll-left .matrix-model-column::after {
  box-shadow: 5px 0 8px rgb(0 0 0 / 28%);
}
.matrix-table tbody th {
  width: 10rem;
  padding: 0;
  background: var(--surface);
  color: var(--text);
  text-align: left;
  font-family: var(--mono);
  font-size: var(--text-body);
  font-weight: 500;
  white-space: normal;
  overflow-wrap: anywhere;
}
.matrix-table tbody th.matrix-model-column .matrix-header {
  padding-right: 58px;
}
.matrix-table tbody .matrix-across-models {
  height: calc(var(--row-height) + 12px);
}
.matrix-table tbody .matrix-across-models > * {
  background: var(--surface-muted, var(--surface));
  border-bottom: 2px solid var(--border-strong);
  font-weight: 600;
}
.matrix-table thead .matrix-overall-head,
.matrix-table tbody .matrix-overall-column {
  background: var(--surface-muted);
}
.matrix-table thead .matrix-overall-head,
.matrix-table tbody .matrix-across-models .matrix-model-column {
  color: var(--blue);
}
.matrix-table tbody .matrix-across-models > .matrix-corner {
  background: var(--surface);
}
/*
 * Cells stay neutral: the score is plain text and the scale is carried by a
 * thin bar under the number, so the table never turns into a colour patchwork.
 */
.matrix-cell {
  position: relative;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-family: var(--mono);
  font-size: var(--text-body);
}
.matrix-cell::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 4px;
  left: 8px;
  height: 2px;
  background: var(--score-color, var(--border-strong));
}
.matrix-table td:hover {
  background: var(--surface-hover);
}
/*
 * A selected cell is a thin rectangle in the colour of its series. The frame
 * says which comparison the cell belongs to; the score strip below the number
 * keeps saying how good the score is.
 */
.matrix-table td.selected .matrix-cell {
  box-shadow: inset 0 0 0 1px var(--selection-color, var(--blue));
}
.matrix-missing {
  color: var(--faint);
}
.matrix-value-missing {
  color: var(--faint);
}
.matrix-value-missing::after {
  display: none;
}
.matrix-paired {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.matrix-paired small {
  color: var(--muted);
  font-size: var(--text-small);
}
.matrix-partial-coverage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.matrix-partial-coverage small {
  color: var(--muted);
  font-size: var(--text-small);
}
/* Header labels open the model or harness behind the row or column. */
.matrix-header {
  width: 100%;
  min-height: calc(var(--row-height) + 12px);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 32px 0 8px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: inherit;
  text-align: inherit;
  cursor: pointer;
}
.matrix-header-label {
  display: block;
  padding-block: var(--pad-cell);
  overflow-wrap: anywhere;
  line-height: 1.2;
  white-space: normal;
}
.matrix-table tbody .matrix-header {
  justify-content: flex-start;
}
.matrix-table thead th:not(.matrix-model-column) {
  position: relative;
}
.matrix-quick-filter {
  position: absolute;
  top: 50%;
  right: 5px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--faint);
  cursor: pointer;
  transform: translateY(-50%);
}
.matrix-table thead .matrix-header {
  padding-right: 58px;
}
.matrix-header-actions {
  position: absolute;
  top: 50%;
  right: 4px;
  display: flex;
  align-items: center;
  transform: translateY(-50%);
}
.matrix-header-actions .matrix-quick-filter {
  position: static;
  transform: none;
}
.matrix-expand-toggle {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--blue);
  cursor: pointer;
  font: 600 20px/1 var(--sans);
}
.matrix-model-toggle span {
  display: inline-block;
  line-height: 1;
}
.matrix-model-toggle[aria-expanded="true"] span {
  transform: rotate(90deg);
}
.matrix-expand-toggle:hover,
.matrix-expand-toggle:focus-visible {
  background: var(--surface-hover);
  color: var(--text);
}
.matrix-expanded-head {
  box-shadow: inset 0 2px var(--blue);
}
.matrix-quick-filter:hover,
.matrix-quick-filter:focus-visible {
  background: var(--surface-hover);
  color: var(--text);
}
.matrix-quick-filter.active {
  color: var(--blue);
}
.matrix-quick-filter svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}
.matrix-header:hover,
.matrix-header:focus-visible {
  background: var(--surface-hover);
  color: var(--blue);
}
.matrix-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 10px;
  color: var(--faint);
  font-size: var(--text-small);
  font-variant-numeric: tabular-nums;
}
#matrix-scale-label {
  margin-right: 2px;
  color: var(--muted);
  font-weight: 600;
}
.matrix-legend-ramp {
  width: 120px;
  height: 6px;
  border-radius: 999px;
}

/* Keep horizontal scrolling available while the middle of a long matrix is visible. */
.matrix-shell.has-horizontal-overflow {
  scrollbar-width: none;
}
.matrix-shell.has-horizontal-overflow::-webkit-scrollbar {
  display: none;
}
.matrix-scrollbar-slot {
  height: 24px;
}
.matrix-scrollbar.is-pinned {
  position: fixed;
  z-index: 30;
  left: var(--scroll-left);
  width: var(--scroll-width);
  bottom: 8px;
}
.matrix-scrollbar {
  height: 24px;
  box-sizing: border-box;
  padding: 4px 8px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: 0 2px 10px rgb(0 0 0 / 18%);
}
.matrix-scrollbar[hidden] {
  display: none;
}
.matrix-scrollbar input {
  appearance: none;
  display: block;
  width: 100%;
  height: 14px;
  margin: 0;
  background: transparent;
  cursor: ew-resize;
}
.matrix-scrollbar input::-webkit-slider-runnable-track {
  height: 10px;
  border-radius: 5px;
  background: var(--border);
}
.matrix-scrollbar input::-webkit-slider-thumb {
  appearance: none;
  width: var(--scroll-thumb-width);
  height: 10px;
  border-radius: 5px;
  background: var(--muted);
}
.matrix-scrollbar input::-moz-range-track {
  height: 10px;
  border-radius: 5px;
  background: var(--border);
}
.matrix-scrollbar input::-moz-range-thumb {
  width: var(--scroll-thumb-width);
  height: 10px;
  border: 0;
  border-radius: 5px;
  background: var(--muted);
}
.matrix-scrollbar input:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}