/* components/_cell-info.css
   The Cell info card: what the cell under the pointer is (ui/modules/cell-info.js).
   It follows the pointer, so it is drawn above the plot and the panels, takes no
   pointer events, and moves only by transform. */

.cell-info-card {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-tooltip);
  box-sizing: border-box;
  /* One 240 px column; a card with more loaded fields than the window's
     height holds takes more (ui/modules/cell-info.js fitCard). */
  max-width: calc(240px * var(--cell-info-columns, 1));
  padding: var(--space-1-5) var(--space-2);
  border: var(--border-light);
  /* Solid, not frosted: a backdrop filter over the WebGL canvas would be
     recomposited on every frame the plot or the card moves. */
  background: var(--color-surface-elevated);
  box-shadow: var(--shadow-md);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--type-label);
  line-height: var(--leading-tight);
  pointer-events: none;
  opacity: 0;
  will-change: transform, opacity;
  transition: opacity var(--duration-fast) var(--easing-out);
}

.cell-info-card[hidden] {
  display: none;
}

.cell-info-card.is-visible {
  opacity: 1;
}

/* One line: colour dot, value, and (for a category) its visible count. */
.cell-info-head {
  display: flex;
  align-items: center;
  gap: var(--space-1-5);
}

.cell-info-swatch {
  flex: none;
  width: var(--space-2);
  height: var(--space-2);
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-text-primary) 18%, transparent);
}

.cell-info-swatch[hidden] {
  display: none;
}

.cell-info-value {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  font-size: var(--type-label);
  font-weight: var(--font-weight-semibold);
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-info-field {
  margin-top: var(--space-0-5);
  overflow: hidden;
  color: var(--color-text-secondary);
  font-size: var(--type-hint);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-info-value.is-missing,
.cell-info-rows dd.is-missing {
  color: var(--color-text-tertiary);
  font-style: italic;
}

/* Where the value sits on the field's colour scale. */
.cell-info-scale {
  margin-top: var(--space-1-5);
}

.cell-info-scale[hidden] {
  display: none;
}

.cell-info-scale-bar {
  position: relative;
  height: var(--space-1);
  border-radius: var(--radius-full);
  background: linear-gradient(to right, var(--cell-info-stops, transparent));
}

.cell-info-scale-marker {
  position: absolute;
  top: 50%;
  left: calc(var(--cell-info-t, 0.5) * 100%);
  width: var(--space-2);
  height: var(--space-2);
  box-sizing: border-box;
  border: 2px solid var(--color-surface-elevated);
  border-radius: var(--radius-full);
  background: var(--color-text-primary);
  box-shadow: var(--shadow-xs);
  transform: translate(-50%, -50%);
}

.cell-info-scale-ends {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-0-5);
  color: var(--color-text-tertiary);
  font-size: var(--type-readout);
  font-variant-numeric: tabular-nums;
}

.cell-info-rows {
  column-count: var(--cell-info-columns, 1);
  column-gap: var(--space-3);
  margin: var(--space-1-5) 0 0;
  padding-top: var(--space-1-5);
  border-top: var(--border-light);
}

.cell-info-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-2);
  padding-bottom: var(--space-0-5);
  break-inside: avoid;
}

.cell-info-more {
  margin: var(--space-1) 0 0;
  color: var(--color-text-tertiary);
  font-size: var(--type-hint);
}

.cell-info-more[hidden] {
  display: none;
}

.cell-info-rows[hidden] {
  display: none;
}

.cell-info-rows dt {
  overflow: hidden;
  color: var(--color-text-secondary);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-info-rows dd {
  display: flex;
  align-items: center;
  gap: var(--space-1-5);
  min-width: 0;
  margin: 0;
  overflow: hidden;
  text-align: right;
  justify-content: flex-end;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-info-dot {
  flex: none;
  width: var(--space-2);
  height: var(--space-2);
  border-radius: var(--radius-full);
}

.cell-info-count[hidden] {
  display: none;
}

/* How many cells of this category are visible in the pane. */
.cell-info-count {
  flex: none;
  margin-left: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--type-hint);
  font-variant-numeric: tabular-nums;
}

@media (prefers-reduced-motion: reduce) {
  .cell-info-card {
    transition: none;
  }
}