/* ICEBERG closure-matrix explorer */

.matrix-intro {
  max-width: 72ch;
  margin-bottom: 1.5rem;
}

.matrix-headline {
  font-family: 'VT323', monospace;
  font-size: 1.6rem;
  color: var(--color-accent-amber);
  margin: 1rem 0 0.5rem;
}

.matrix-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 1rem 0 1.5rem;
}

.matrix-controls .ctrl-label {
  color: var(--color-dim);
  font-size: 0.85rem;
  margin-right: 0.25rem;
}

.floor-btn {
  font-family: 'VT323', monospace;
  font-size: 1.05rem;
  color: var(--color-primary);
  background: var(--win-face);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-dark);
  border-right: 2px solid var(--win-dark);
  padding: 0.25rem 0.8rem;
  cursor: pointer;
}

.floor-btn[aria-pressed="true"] {
  color: var(--color-accent-amber);
  border-top: 2px solid var(--win-dark);
  border-left: 2px solid var(--win-dark);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
}

.floor-btn:focus-visible {
  outline: 2px solid var(--color-accent-amber);
  outline-offset: 2px;
}

.matrix-facets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.facet {
  background: var(--win-face);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-dark);
  border-right: 2px solid var(--win-dark);
  padding: 0.75rem;
}

.facet h3 {
  font-family: 'VT323', monospace;
  font-size: 1.15rem;
  color: var(--color-accent-cyan);
  margin: 0 0 0.6rem;
  text-align: center;
}

.facet table {
  border-collapse: separate;
  border-spacing: 2px;
  width: 100%;
}

.facet th {
  color: var(--color-dim-panel);
  font-size: 0.72rem;
  font-weight: normal;
  padding: 2px 4px;
}

.facet td.cell {
  text-align: center;
  font-family: 'VT323', monospace;
  font-size: 1.05rem;
  padding: 0.55rem 0.2rem;
  cursor: default;
  border: 2px solid transparent;
}

.facet td.cell.close {
  border-color: var(--color-accent-amber);
  font-weight: bold;
}

.facet td.cell:hover,
.facet td.cell:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.matrix-tooltip {
  position: fixed;
  z-index: 30;
  pointer-events: none;
  background: var(--win-face);
  color: var(--color-primary);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-dark);
  border-right: 2px solid var(--win-dark);
  padding: 0.5rem 0.7rem;
  font-size: 0.8rem;
  line-height: 1.45;
  max-width: 260px;
  display: none;
}

.matrix-tooltip .tt-verdict-close { color: var(--color-accent-amber); }
.matrix-tooltip .tt-verdict-miss { color: var(--color-accent-red); }

.matrix-legend {
  color: var(--color-dim);
  font-size: 0.82rem;
  max-width: 72ch;
  margin-bottom: 2rem;
}

.matrix-links {
  margin-top: 1rem;
}