:root { background: var(--paper); color: var(--text); font-family: "Segoe UI", ui-sans-serif, system-ui, sans-serif; font-synthesis: none; }
* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
a { color: var(--accent); text-underline-offset: 3px; }
button, select { font: inherit; }
a:focus-visible, button:focus-visible, select:focus-visible, summary:focus-visible, .calibration-point:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skip-link { position: absolute; top: -80px; left: 16px; background: var(--surface); padding: 12px; z-index: 5; }
.skip-link:focus { top: 8px; }
.page-nav { max-width: 1160px; }
main { max-width: 1000px; margin: auto; padding: 38px 28px 24px; }
.eyebrow { color: var(--accent); letter-spacing: .12em; font-size: 12px; font-weight: 700; }
h1 { font: 400 clamp(30px, 4vw, 42px)/1.2 Georgia, serif; margin: 18px 0; }
h2 { font: 400 clamp(27px, 3vw, 34px)/1.2 Georgia, serif; margin: 36px 0 18px; }
h3 { font-size: 21px; line-height: 1.4; margin: 0 0 8px; }
p, li { font-size: 15px; line-height: 1.7; }
header p:last-child { max-width: 830px; }
.reading-list { padding-left: 22px; margin: 16px 0; }
.reading-list li { padding-left: 3px; margin: 8px 0; }
.small-note, .chart-note, figcaption { color: var(--muted); font-size: 13px; line-height: 1.65; }
.scope-note { background: var(--warning-bg); color: var(--warning-ink); border-left: 3px solid var(--series-4); padding: 13px 17px; }
#insights-status { color: var(--muted); }
#insights-status.error { color: var(--red); border: 1px solid var(--line); padding: 16px; }
.chart-section { margin: 30px 0 0; padding: 27px 0; border-top: 1px solid var(--line); }
.control { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; font-size: 14px; margin: 17px 0; }
select { max-width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 4px; color: var(--text); background: var(--surface); padding: 7px 32px 7px 10px; }
.plot svg { display: block; width: 100%; overflow: visible; }
.chart-grid { stroke: var(--line); stroke-width: 1; }
.axis-label, .axis-tick { fill: var(--muted); font: 13px "Segoe UI", sans-serif; }
.chart-diagonal { stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 6 5; }
.calibration-point { fill: var(--neutral-mark); stroke: var(--paper); stroke-width: 1.5; cursor: pointer; }
.calibration-point:hover, .calibration-point:focus { fill: var(--accent); stroke: var(--text); stroke-width: 2; }
.chart-detail { min-height: 48px; font-size: 13px; color: var(--text); background: var(--surface-muted); padding: 10px 13px; margin: 8px 0 14px; }
.chart-reading { margin-top: 16px; }
.family-legend, .symbol-legend { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 13px; margin: 18px 0; }
.family { border-left: 5px solid; padding-left: 8px; }
.family.llm { border-color: var(--series-3); }
.family.dl { border-color: var(--accent); }
.family.exemplar { border-color: var(--series-4); }
.rank-axis { display: flex; justify-content: space-between; margin: 0 66px 6px 244px; color: var(--muted); font-size: 12px; }
.rank-row { display: grid; grid-template-columns: 230px 1fr 58px; gap: 14px; align-items: center; min-height: 46px; margin: 5px 0; }
.model-label { font-size: 14px; line-height: 1.35; overflow-wrap: anywhere; }
.model-label small { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }
.rank-track { height: 14px; background: var(--track); }
.rank-bar { display: block; height: 100%; width: var(--bar-width); background: var(--series-3); }
.rank-row.dl .rank-bar { background: var(--accent); }
.rank-row.exemplar .rank-bar { background: var(--series-4); }
.rank-value { font-size: 14px; text-align: right; font-variant-numeric: tabular-nums; }
.symbol-legend > span { display: inline-flex; align-items: center; gap: 8px; }
.stated-symbol { width: 11px; height: 11px; background: var(--series-3); display: inline-block; }
.exact-symbol { width: 13px; height: 13px; border: 2px solid var(--accent); border-radius: 50%; display: inline-block; }
.gap-axis { display: grid; grid-template-columns: 230px 1fr 65px; gap: 14px; margin-bottom: 4px; font-size: 12px; color: var(--muted); }
.gap-axis > span:last-child { text-align: right; }
.gap-axis .ticks { display: flex; justify-content: space-between; padding: 0 10px; }
.confidence-row { display: grid; grid-template-columns: 230px 1fr 65px; gap: 14px; align-items: center; border-top: 1px solid var(--line); padding: 10px 0; }
.confidence-glyph svg { display: block; width: 100%; height: 44px; }
.gap-line { stroke: var(--mark-outline); stroke-width: 2; }
.stated-mark { fill: var(--series-3); }
.exact-mark { fill: var(--paper); stroke: var(--accent); stroke-width: 2.5; }
.brier-value { font-size: 14px; text-align: right; font-variant-numeric: tabular-nums; }
.sources { border-top: 1px solid var(--line); padding: 20px 0; margin-top: 24px; }
.sources summary { min-height: 44px; cursor: pointer; font-weight: 600; }
.sources ul { padding-left: 22px; }
.sources li { font-size: 13px; overflow-wrap: anywhere; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; border-top: 1px solid var(--line); padding-top: 22px; font-size: 13px; }
@media (max-width: 650px) {
  main { padding: 25px 16px; }
  .rank-axis { margin-left: 0; margin-right: 64px; }
  .rank-row { grid-template-columns: 1fr 58px; gap: 7px 12px; margin: 14px 0; }
  .rank-row .model-label { grid-column: 1 / -1; }
  .gap-axis { display: none; }
  .confidence-row { grid-template-columns: 1fr 65px; gap: 6px 12px; }
  .confidence-glyph { grid-column: 1 / -1; grid-row: 2; }
  .confidence-row .brier-value::before { content: "Brier "; display: block; font-size: 11px; color: var(--muted); }
  .chart-detail { min-height: 68px; }
}