:root {
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
  --ink: #000;
  --mute: #737373;
  --line: rgba(0, 0, 0, 0.08);
  --fill: #f5f5f5;
  --accent: #6c4fe0;
  --bg: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
}

.page { max-width: 1240px; margin: 0 auto; padding: 24px 20px 72px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--accent);
  text-transform: uppercase;
  margin: 4px 0 0;
}
h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 34px;
  letter-spacing: -0.5px;
  margin: 2px 0 4px;
}
.subtitle {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
  margin: 0 0 16px;
}
.scope-note {
  max-width: 760px;
  color: var(--mute);
  font-size: 12px;
  margin: -8px 0 14px;
}

a { color: var(--accent); }
code {
  font-family: var(--mono);
  font-size: 12px;
  background: #f3f2ef;
  border-radius: 4px;
  padding: 0 4px;
}

.legendrow, .filters, .searchrow {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin: 0 0 12px;
}
.legend {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
}
.dot {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  display: inline-block;
}

.search {
  flex: 1;
  min-width: 220px;
  font-size: 14px;
  padding: 9px 12px;
  border: 1px solid #d4d4d4;
  border-radius: 8px;
  background: #fff;
}
.chip {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  background: var(--fill);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
}
.chip.on, .chip:hover { color: var(--ink); border-color: #d4d4d4; background: #fff; }
.chip.on { outline: 1px solid rgba(108, 79, 224, 0.35); background: rgba(108, 79, 224, 0.08); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  gap: 10px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  padding: 0;
  font: inherit;
  color: inherit;
  transition: box-shadow .12s, transform .12s;
}
.card:hover, .card.active {
  box-shadow: 0 3px 14px rgba(11, 11, 11, 0.13);
  transform: translateY(-1px);
}
.card.active { outline: 1px solid rgba(108, 79, 224, 0.45); }
.card-hero {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: .3px;
  text-transform: uppercase;
  color: #fff;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--card-color) 85%, white), var(--card-color));
}
.card-name {
  font-size: 11.5px;
  font-weight: 600;
  padding: 6px 8px 2px;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-foot {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 8px 8px;
}
.card-group {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.card-metric {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--mute);
  background: var(--fill);
  border-radius: 4px;
  padding: 1px 5px;
  white-space: nowrap;
}
.detail-summary {
  font-size: 15px;
  line-height: 1.5;
  font-weight: 500;
}

.leaderboard-section {
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px 16px 12px;
}
.leaderboard-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}
.leaderboard-heading h2 {
  margin: 0 0 3px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .8px;
  text-transform: uppercase;
}
.leaderboard-heading p,
.leaderboard-note {
  margin: 0;
  color: var(--mute);
  font-size: 11.5px;
  line-height: 1.45;
}
.leaderboard-heading a {
  flex: none;
  font-family: var(--mono);
  font-size: 11px;
}
.gap-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}
.gap-stats div {
  min-width: 0;
  border-radius: 8px;
  background: var(--fill);
  padding: 7px 10px;
}
.gap-stats span {
  display: block;
  margin-bottom: 2px;
  color: var(--mute);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .5px;
  text-transform: uppercase;
}
.gap-stats b {
  display: block;
  overflow: hidden;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.leaderboard-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.leaderboard-table { min-width: 680px; }
.leaderboard-table th:first-child,
.leaderboard-table td:first-child { width: 54px; text-align: center; }
.leaderboard-table th:nth-child(2) { width: 38%; }
.leaderboard-table td { height: 46px; }
.leaderboard-table .unreported td { color: #999; }
.leaderboard-table .unreported b { font-weight: 500; }
.score-bar {
  height: 3px;
  margin-top: 5px;
  overflow: hidden;
  border-radius: 2px;
  background: #e8e8e8;
}
.score-bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}
.leaderboard-note { margin-top: 9px; }

.examples-section { margin: 18px 0; }
.examples-heading {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.examples-heading h2,
.example-number,
.example-answer span,
.example-provenance {
  font-family: var(--mono);
}
.examples-heading h2 {
  margin: 0;
  font-size: 12px;
  letter-spacing: .8px;
  text-transform: uppercase;
}
.examples-heading p {
  margin: 0;
  color: var(--mute);
  font-size: 12px;
}
.examples-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.example-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px 16px 12px;
}
.example-number {
  color: var(--mute);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .8px;
  text-transform: uppercase;
}
.example-card h3 {
  margin: 7px 0;
  font-size: 14px;
  line-height: 1.35;
}
.example-prompt {
  min-height: 84px;
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.5;
}
.example-answer {
  border-radius: 8px;
  background: rgba(108, 79, 224, .08);
  outline: 1px solid rgba(108, 79, 224, .22);
  padding: 8px 10px;
}
.example-answer span {
  color: var(--accent);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .6px;
  text-transform: uppercase;
}
.example-answer p {
  margin: 3px 0 0;
  font-size: 12.5px;
  line-height: 1.45;
}
.example-meta { margin-top: 10px; }
.example-tag {
  display: inline-block;
  margin: 0 5px 5px 0;
  border-radius: 5px;
  background: var(--fill);
  color: var(--mute);
  padding: 2px 6px;
  font-family: var(--mono);
  font-size: 9.5px;
}
.example-provenance {
  margin: 3px 0 0;
  color: var(--mute);
  font-size: 9.5px;
}

.nav {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 22px 0 14px;
  position: sticky;
  top: 0;
  background: #fff;
  padding: 10px 0;
  z-index: 2;
}
.nav select {
  flex: 1;
  font-size: 14px;
  padding: 9px 12px;
  border: 1px solid #d4d4d4;
  border-radius: 8px;
  background: #fff;
}
.nav button {
  border-radius: 999px;
  font-size: 13px;
  padding: 8px 16px;
  background: #fff;
  border: 1px solid #d4d4d4;
  cursor: pointer;
}
.nav button:hover { background: #f3f2ef; }

.stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 4px 0 12px;
}
.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 13px;
}
.stat span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
  margin-right: 6px;
}

.meta { font-size: 12.5px; color: var(--mute); margin: 2px 0 8px; }

.section {
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px 18px 12px;
}
.section h2 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 8px;
}
.section p, .section li {
  font-size: 14.5px;
  line-height: 1.55;
  margin: 0 0 10px;
}
.section ul { margin: 0; padding-left: 18px; }
.retired-note {
  background: #fafafa;
  border-style: dashed;
}

.dl {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 6px 16px;
  font-size: 14px;
}
.dl dt {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); }
th {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  font-weight: 650;
}
tr:nth-child(even) td { background: #fafafa; }
.table-scroll { max-height: 420px; overflow: auto; border: 1px solid var(--line); border-radius: 10px; }
.table-scroll thead th { position: sticky; top: 0; background: #fff; z-index: 1; }
.score { color: var(--accent); font-weight: 650; }

.mchip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  background: var(--fill);
  border-radius: 999px;
  padding: 2px 10px;
  margin: 0 6px 6px 0;
}

.empty { color: var(--mute); padding: 24px 4px; }

@media (max-width: 640px) {
  h1 { font-size: 26px; }
  .gap-stats { grid-template-columns: 1fr; }
  .examples-grid { grid-template-columns: 1fr; }
  .example-prompt { min-height: 0; }
  .dl { grid-template-columns: 1fr; }
  .nav { position: static; }
  table { font-size: 12px; }
}