/* Lens Lab: its own styles, on the family tokens (site.css) and the bench
   layer (bench.css). Light and dark come from the tokens; the canvas
   diagrams read the same tokens when they draw (palette() in lenslab.js).
   The preview scenes are pictures and keep their own colours. */

.ll-preview-layout {
  display: grid;
  grid-template-columns: 17.5rem minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
}
@media (max-width: 54rem) {
  .ll-preview-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- Controls ---------- */

.ll-controls {
  position: sticky;
  top: 6rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
@media (max-width: 54rem) {
  .ll-controls {
    position: static;
  }
}
.ll-controls-header {
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--glass-line);
}
.ll-controls-header h2 {
  color: var(--ink);
  font: 800 1rem/1.2 var(--font-display);
}
.ll-controls-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem 1.1rem;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.field .bench-flabel {
  display: flex;
}
.field-hint {
  color: var(--ink-muted);
  font-size: 0.75rem;
  line-height: 1.5;
}
.slider-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 4rem;
  align-items: center;
  gap: 0.6rem;
}
.slider-row-w {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.slider-row-w input[type="range"] {
  flex: 1;
}
input[type="range"] {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--line-strong);
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-fill);
  box-shadow: 0 0 0 3px var(--accent-soft);
  -webkit-appearance: none;
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 50%;
  background: var(--accent-fill);
  cursor: pointer;
}
.field input[type="number"] {
  width: 100%;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--ink);
  font: 400 0.9rem/1.3 var(--font-mono);
  -moz-appearance: textfield;
}
.field input[type="number"]::-webkit-inner-spin-button,
.field input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
}
.field input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.val-badge {
  margin-left: auto;
  color: var(--accent-ink);
  font: 600 0.8rem/1.3 var(--font-mono);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.chip {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-muted);
  font: 600 0.78rem/1.2 var(--font);
  cursor: pointer;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--ink);
}
.chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-ink);
}
.aperture-seg {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
}
.aperture-btn {
  flex: 1;
  min-width: 34px;
  padding: 0.35rem 2px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--ink-muted);
  font: 600 0.72rem/1.2 var(--font-mono);
  text-align: center;
  cursor: pointer;
}
.aperture-btn:hover {
  color: var(--ink);
}
.aperture-btn.active {
  background: var(--accent-fill);
  color: var(--ink-on-accent);
}

/* ---------- Preview ---------- */

.ll-canvas-wrap {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
.ll-canvas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--glass-line);
}
.ll-canvas-label {
  color: var(--ink-muted);
  font: 500 0.75rem/1.3 var(--font-mono);
}
.ll-fov {
  color: var(--ink-muted);
  font: 400 0.75rem/1.3 var(--font-mono);
}
#preview-canvas {
  display: block;
  width: 100%;
}
.ll-dof-wrap {
  padding: 0.5rem 0.9rem 0.6rem;
  border-top: 1px solid var(--glass-line);
  background: var(--surface-sunk);
}
.ll-dof-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.ll-dof-detail {
  color: var(--ink-muted);
  font: 400 0.7rem/1.3 var(--font-mono);
}
.ll-dof-hint {
  color: var(--accent-ink);
  font-size: 0.7rem;
}
#dof-diagram {
  display: block;
  width: 100%;
  cursor: crosshair;
  touch-action: none;
}
.ll-results-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border-top: 1px solid var(--glass-line);
  background: var(--glass-line);
}
@media (max-width: 38rem) {
  .ll-results-row {
    grid-template-columns: repeat(2, 1fr);
  }
}
.ll-result-box {
  padding: 0.6rem 0.9rem;
  background: var(--surface);
}
.ll-result-box.primary {
  background: var(--accent-soft);
}
.ll-result-label {
  display: block;
  margin-bottom: 2px;
  color: var(--ink-muted);
  font: 500 0.7rem/1.3 var(--font-mono);
}
.ll-result-val {
  color: var(--accent-ink);
  font: 500 1.1rem/1.15 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.ll-result-box.primary .ll-result-val {
  color: var(--ink);
}

/* ---------- Sensors and equivalence ---------- */

.ll-section-title {
  margin-bottom: 0.25rem;
  color: var(--ink);
  font: 900 1.5rem/1.2 var(--font-display);
}
.ll-section-sub {
  max-width: 70ch;
  margin-bottom: 1.25rem;
  color: var(--ink-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}
.ll-section-sub strong {
  color: var(--ink);
}
.ll-section-sub.ll-tight {
  margin-bottom: 0.75rem;
}
.ll-section-sub.ll-after {
  margin-top: 0.75rem;
  margin-bottom: 0;
}
.ll-sensor-diagram-wrap {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}
#sensor-canvas {
  display: block;
  width: 100%;
}
.ll-sensor-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--glass-line);
}
.ll-sensor-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-muted);
  font-size: 0.75rem;
}
.ll-sensor-legend-dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 2px;
}

.ll-ff-callout {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
  margin-bottom: 1.25rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: var(--surface);
}
.ll-ff-callout-label,
.ll-ff-arrow,
.ll-ff-equiv-unit,
.ll-ff-equiv-label {
  color: var(--ink-muted);
  font-size: 0.82rem;
}
.ll-ff-equiv {
  display: flex;
  align-items: baseline;
  gap: 5px;
}
.ll-ff-equiv-fl {
  color: var(--accent-ink);
  font: 500 1.75rem/1 var(--font-mono);
}
.ll-ff-equiv-label {
  white-space: nowrap;
}
.ll-equiv-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}
.ll-equiv-card {
  padding: 0.85rem 0.75rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
  background: var(--surface);
}
.ll-equiv-card.current {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.ll-equiv-card.ff-ref {
  border-color: var(--ok);
  background: var(--ok-soft);
}
.ll-equiv-card-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  margin-bottom: 0.5rem;
  color: var(--ink-muted);
  font: 500 0.7rem/1.3 var(--font-mono);
}
.ll-equiv-card-tag {
  font-weight: 400;
}
.ll-equiv-card-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
}
.ll-equiv-card.current .ll-equiv-card-name {
  color: var(--accent-ink);
}
.ll-equiv-card.ff-ref .ll-equiv-card-name {
  color: var(--ok);
}
.ll-equiv-card-fl {
  margin-bottom: 1px;
  color: var(--ink);
  font: 500 1.6rem/1 var(--font-mono);
}
.ll-equiv-card-fl span {
  color: var(--ink-muted);
  font-size: 0.72rem;
  font-weight: 400;
}
.ll-equiv-card.current .ll-equiv-card-fl {
  color: var(--accent-ink);
}
.ll-equiv-card-ap {
  margin-bottom: 0.35rem;
  color: var(--ink-muted);
  font: 400 0.8rem/1.3 var(--font-mono);
}
.ll-equiv-card-cf {
  color: var(--ink-muted);
  font-size: 0.7rem;
}
.ll-equiv-warn {
  margin-top: 3px;
  color: var(--warn);
  font-size: 0.7rem;
  line-height: 1.4;
}

.ll-divider {
  height: 1px;
  margin: 1.5rem 0 1.25rem;
  background: var(--glass-line);
}
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-sm);
  background: var(--surface);
}
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.table-wrap thead th {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--glass-line);
  background: var(--surface-sunk);
  color: var(--ink-muted);
  font: 500 0.75rem/1.3 var(--font-mono);
  text-align: left;
  white-space: nowrap;
}
.table-wrap tbody tr {
  border-bottom: 1px solid var(--glass-line);
}
.table-wrap tbody tr:last-child {
  border-bottom: none;
}
.table-wrap tbody td {
  padding: 0.6rem 0.85rem;
  color: var(--ink-muted);
  vertical-align: middle;
}
.table-wrap tbody td.val {
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}
.table-wrap tbody td.hi {
  color: var(--accent-ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.table-wrap tbody td.muted {
  font-size: 0.8rem;
}
.ll-equiv-current-row td {
  background: var(--accent-soft);
}
.ll-equiv-current-row td.val {
  color: var(--accent-ink);
}
.ll-ff-row td {
  background: var(--ok-soft);
}
.ll-ff-row td.val {
  color: var(--ok);
}