/* Wayfinder — simulation lab (/sim/).
 *
 * Layered on /styles.css: the same tokens, type and section rhythm, plus what
 * a results page needs that the landing page does not — stat tiles, chart
 * cards, a tooltip, and collapsible method/data blocks.
 *
 * Chart colour is the simulator's validated categorical palette
 * (sim/src/wayfinder_sim/palette.py: blue, aqua, yellow, violet, in that fixed
 * order), checked against the chart surface (--paper-2) with the dataviz
 * validator. Aqua and yellow sit below 3:1 there, so identity never rides on
 * colour alone: every multi-series chart carries a legend and a data table.
 * Text never wears a series colour.
 */

:root {
  --s1: #2a78d6;
  --s2: #1baf7a;
  --s3: #eda100;
  --s4: #4a3aa7;
  --chart-surface: var(--paper-2);
  --grid: #dcd8d0;
  --axis: #b9b4aa;
}

/* ------------------------------------------------------------------ hero -- */

.lab-hero {
  padding-block: clamp(3rem, 7vw, 5.5rem) var(--sec-y);
}

.lab-hero__title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 5.5vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
}

.lab-how {
  list-style: none;
  margin: 2rem 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.lab-how li {
  border-top: 1px solid var(--rule);
  padding-top: 0.9rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.lab-how__k {
  display: block;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.lab-hero__note {
  font-size: 0.9rem;
  color: var(--faint);
  max-width: 70ch;
  margin: 0;
}

.lab-noscript {
  padding-block: 2rem;
  color: var(--muted);
}

/* -------------------------------------------------------------- scenario -- */

.lab-scn {
  padding-block: var(--sec-y);
  border-top: 1px solid var(--rule-soft);
}

.lab-scn:nth-child(even) {
  background: linear-gradient(
    180deg,
    rgb(255 255 255 / 40%),
    rgb(255 255 255 / 0%)
  );
}

.lab-scn__q {
  font-size: clamp(1.02rem, 1.35vw, 1.19rem);
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 1.75rem;
}

.lab-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0 0 1.75rem;
}

.lab-stat {
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  border-radius: var(--r);
  padding: 1.1rem 1.2rem 1rem;
}

.lab-stat__v {
  font-family: var(--f-ui);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variant-numeric: proportional-nums;
  display: block;
}

.lab-stat__l {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.95rem;
  color: var(--text);
}

.lab-stat__d {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--faint);
}

.lab-scn__summary {
  max-width: 72ch;
  margin: 0 0 2rem;
}

.lab-charts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.lab-chart {
  margin: 0;
  background: var(--chart-surface);
  border: 1px solid var(--rule-soft);
  border-radius: var(--r);
  padding: 1rem 1.1rem 0.9rem;
  min-width: 0;
}

.lab-chart--wide {
  grid-column: 1 / -1;
}

.lab-chart__title {
  font-family: var(--f-ui);
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0 0 0.5rem;
}

.lab-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin: 0 0 0.4rem;
  padding: 0;
  list-style: none;
  font-size: 0.8rem;
  color: var(--muted);
}

.lab-legend li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.lab-key {
  display: inline-block;
  width: 14px;
  height: 3px;
  border-radius: 2px;
}

.lab-key--dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.lab-key--bar {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.lab-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.lab-svg text {
  font-family: var(--f-ui);
  font-size: 11px;
  fill: var(--faint);
}

.lab-svg .lab-axis-label {
  fill: var(--muted);
  font-size: 11px;
}

.lab-svg .lab-marker-label {
  fill: var(--muted);
  font-size: 10.5px;
}

.lab-chart__cap {
  margin: 0.55rem 0 0;
  font-size: 0.82rem;
  color: var(--faint);
}

.lab-scale {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0.2rem 0 0.4rem;
}

.lab-scale__bar {
  flex: 0 0 140px;
  height: 8px;
  border-radius: 4px;
}

/* ---------------------------------------------------------- details/data -- */

.lab-more {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.6rem;
}

.lab-details {
  border: 1px solid var(--rule-soft);
  border-radius: var(--r);
  background: rgb(255 255 255 / 30%);
}

.lab-details > summary {
  cursor: pointer;
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  list-style-position: inside;
}

.lab-details__body {
  padding: 0 1rem 1rem;
  font-size: 0.9rem;
  color: var(--muted);
  overflow-x: auto;
}

.lab-chart .lab-details {
  margin-top: 0.6rem;
  background: transparent;
}

.lab-chart .lab-details > summary {
  padding: 0.45rem 0.7rem;
  font-size: 0.8rem;
}

.lab-table {
  border-collapse: collapse;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  min-width: 100%;
}

.lab-table th,
.lab-table td {
  text-align: right;
  padding: 0.3rem 0.7rem;
  border-bottom: 1px solid var(--rule-soft);
  white-space: nowrap;
}

.lab-table th:first-child,
.lab-table td:first-child {
  text-align: left;
}

.lab-table th {
  font-weight: 600;
  color: var(--text);
}

.lab-params {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0.75rem 0 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.lab-src {
  font-size: 0.85rem;
  color: var(--faint);
  margin: 0.25rem 0 0;
}

/* --------------------------------------------------------------- tooltip -- */

.lab-tip {
  position: fixed;
  z-index: 50;
  pointer-events: none;
  background: var(--ink-2);
  color: #f2f0eb;
  font-size: 0.78rem;
  line-height: 1.45;
  padding: 0.45rem 0.6rem;
  border-radius: 6px;
  max-width: 260px;
  box-shadow: 0 6px 18px rgb(0 0 0 / 18%);
}

.lab-tip b {
  font-weight: 600;
}

.lab-tip__row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ------------------------------------------------------------- findings -- */

.found {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.found__item {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 1.2rem 1.3rem;
}

.found__item p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

.found__item .found__k {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.5rem;
}

.found__item--open {
  border-color: var(--red);
}

.found__item--open .found__k {
  color: var(--red);
}

.found__title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.2rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

.lab-cmd {
  margin: 0.5rem 0 0.75rem;
  font-size: 0.8rem;
  overflow-x: auto;
}

.lab-cmd code {
  display: block;
  padding: 0.75rem 0.9rem;
  white-space: pre;
}

/* ------------------------------------------------------------ responsive -- */

@media (width <= 900px) {
  .lab-charts,
  .found,
  .lab-how,
  .lab-stats {
    grid-template-columns: minmax(0, 1fr);
  }
}