/* iqofsi.com — light, data-first. Tokens first; components below. */
:root {
  color-scheme: light;
  --surface-0: #fcfcfb;
  --surface-1: #ffffff;
  --surface-2: #f4f3f0;
  --rule: #e6e4df;
  --rule-strong: #cfccc5;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --ink-3: #6b6a66;
  --accent: #2a78d6;
  --accent-ink: #1c5cab;
  --accent-wash: #e8f1fc;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --muted-mark: #b9b7b0;
  --good: #0ca30c;
  --warn-bg: #fff6df;
  --warn-rule: #f0d48a;
  --radius: 8px;
  --gutter: 16px;
  --maxw: 1180px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans",
    "PingFang SC", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Microsoft YaHei", "Apple SD Gothic Neo",
    "Malgun Gothic", "Noto Sans CJK SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--surface-0); color: var(--ink);
  font: 16px/1.55 var(--font);
}
a { color: var(--accent-ink); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible, summary:focus-visible, select:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
img, svg { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.35rem); margin: 0.2em 0 0.35em; }
h2 { font-size: 1.35rem; margin: 1.8em 0 0.6em; }
h3 { font-size: 1.08rem; margin: 1.4em 0 0.4em; }
p { margin: 0 0 0.9em; }
code, pre { font-family: var(--mono); font-size: 0.92em; }
pre { background: var(--surface-2); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 12px 14px; overflow-x: auto; line-height: 1.45; }
.skip { position: absolute; left: -999px; top: 0; }
.skip:focus { left: 8px; top: 8px; background: var(--surface-1); padding: 6px 10px; z-index: 10; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.muted { color: var(--ink-2); }
.small { font-size: 0.875rem; }
.num { font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }

/* header */
.site-header { background: var(--surface-1); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; gap: 18px; min-height: 58px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.08rem;
  color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand svg { width: 26px; height: 26px; flex: none; }
.nav { display: flex; gap: 4px 16px; flex-wrap: wrap; flex: 1 1 auto; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 0.95rem; padding: 4px 0; }
.nav a[aria-current="page"], .nav a:hover { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); }
.lang { position: relative; margin-left: auto; }
.lang summary { list-style: none; cursor: pointer; color: var(--ink-2); font-size: 0.92rem;
  border: 1px solid var(--rule); border-radius: 999px; padding: 4px 12px; background: var(--surface-1); }
.lang summary::-webkit-details-marker { display: none; }
.lang ul { position: absolute; right: 0; top: calc(100% + 6px); z-index: 20; margin: 0; padding: 6px;
  list-style: none; background: var(--surface-1); border: 1px solid var(--rule); border-radius: var(--radius);
  box-shadow: 0 8px 24px rgb(0 0 0 / 8%); min-width: 150px; }
.lang li a { display: block; padding: 6px 10px; border-radius: 6px; text-decoration: none; color: var(--ink); }
.lang li a:hover, .lang li a[aria-current="true"] { background: var(--surface-2); }
.lang-hint { background: var(--accent-wash); border-bottom: 1px solid var(--rule); font-size: 0.92rem; }
.lang-hint .wrap { display: flex; gap: 12px; align-items: center; padding-top: 8px; padding-bottom: 8px; }
.lang-hint button { margin-left: auto; background: none; border: 0; color: var(--ink-2); cursor: pointer;
  font: inherit; padding: 4px 8px; }

/* notices */
.ai-note { margin: 18px 0 8px; padding: 10px 14px; background: var(--surface-1); border: 1px solid var(--rule);
  border-left: 3px solid var(--accent); border-radius: 6px; font-size: 0.9rem; color: var(--ink-2); }
.ai-note strong { color: var(--ink); }
.callout { padding: 12px 14px; background: var(--warn-bg); border: 1px solid var(--warn-rule); border-radius: 6px;
  font-size: 0.95rem; }

/* hero */
.hero { padding: 18px 0 6px; }
.hero .lede { font-size: 1.08rem; color: var(--ink-2); max-width: 760px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 16px 0 6px; }
.kpi { background: var(--surface-1); border: 1px solid var(--rule); border-radius: var(--radius); padding: 12px 14px; }
.kpi .label { font-size: 0.85rem; color: var(--ink-2); }
.kpi .value { font-size: 1.6rem; font-weight: 650; line-height: 1.15; margin-top: 2px; }
.kpi .sub { font-size: 0.85rem; color: var(--ink-2); }

/* tables */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--rule);
  border-radius: var(--radius); background: var(--surface-1); }
table { border-collapse: collapse; width: 100%; font-size: 0.94rem; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: middle; }
thead th { position: sticky; top: 0; background: var(--surface-1); font-weight: 600; font-size: 0.84rem;
  color: var(--ink-2); white-space: nowrap; z-index: 1; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fafaf8; }
td.r, th.r { text-align: right; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
th button.sort { all: unset; cursor: pointer; display: inline-flex; gap: 4px; align-items: center; }
th button.sort:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
th[aria-sort="ascending"] button.sort::after { content: "▲"; font-size: 0.7em; }
th[aria-sort="descending"] button.sort::after { content: "▼"; font-size: 0.7em; }
.model-cell a { font-weight: 600; text-decoration: none; color: var(--ink); }
.model-cell a:hover { text-decoration: underline; }
.model-cell .org { display: block; font-size: 0.82rem; color: var(--ink-2); }
.rank { color: var(--ink-2); font-variant-numeric: tabular-nums; width: 2.5em; }
.iq { font-weight: 700; font-size: 1.05rem; }
.ci { display: block; font-size: 0.78rem; color: var(--ink-2); font-weight: 400; }
.badge { display: inline-block; font-size: 0.72rem; line-height: 1; padding: 3px 6px; border-radius: 999px;
  border: 1px solid var(--rule-strong); color: var(--ink-2); vertical-align: 1px; margin-left: 4px; white-space: nowrap; }
.badge.open { border-color: #9fd8c2; color: #0d6b4a; background: #eefaf5; }
.badge.new { border-color: #a9c8f1; color: var(--accent-ink); background: var(--accent-wash); }
.cibar { display: block; width: 120px; height: 14px; }

/* filters */
.filters { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: end; margin: 14px 0 10px; }
.filters label { display: flex; flex-direction: column; gap: 3px; font-size: 0.8rem; color: var(--ink-2); }
.filters select, .filters input { font: inherit; font-size: 0.92rem; padding: 6px 8px; border: 1px solid var(--rule-strong);
  border-radius: 6px; background: var(--surface-1); color: var(--ink); min-width: 140px; }
.filters .count { font-size: 0.85rem; color: var(--ink-2); margin-left: auto; }
[hidden] { display: none !important; }

/* cards & layout */
.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }
.card { background: var(--surface-1); border: 1px solid var(--rule); border-radius: var(--radius); padding: 14px 16px; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 0; font-size: 0.95rem; }
.facts dt { color: var(--ink-2); }
.facts dd { margin: 0; }
.crumbs { font-size: 0.85rem; color: var(--ink-2); margin: 14px 0 0; }
.crumbs a { color: var(--ink-2); }
.score-hero { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin: 6px 0 10px; }
.score-hero .big { font-size: 3.2rem; font-weight: 700; line-height: 1; }
.score-hero .meta { color: var(--ink-2); }

/* charts */
figure.chart { margin: 16px 0; background: var(--surface-1); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 12px 14px 8px; }
figure.chart figcaption { font-size: 0.85rem; color: var(--ink-2); margin-top: 6px; }
.chart svg text { font-family: var(--font); fill: var(--ink-2); font-size: 12px; }
.chart svg .grid { stroke: var(--rule); stroke-width: 1; }
.chart svg .axis { stroke: var(--rule-strong); stroke-width: 1; }
.chart svg .lbl { fill: var(--ink); font-size: 12px; }
.chart .legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 0.85rem; color: var(--ink-2); margin: 2px 0 6px; }
.chart .legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; }
/* swatch colours = pipeline/charts.py SERIES / FRONTIER (no inline styles: the CSP allows none) */
.chart .legend i.sw-0 { background: #2a78d6; }
.chart .legend i.sw-1 { background: #eb6834; }
.chart .legend i.sw-2 { background: #1baf7a; }
.chart .legend i.sw-3 { background: #eda100; }
.chart .legend i.sw-frontier { background: #52514e; border-radius: 0; height: 2px; width: 14px; vertical-align: 3px; }
.chart svg.wide { min-width: 560px; }
figure.chart.bare { margin: 0; border: 0; padding: 0; }
.table-scroll.noborder { border: 0; }
h2.flush { margin-top: 0; }
.chart-tip { position: fixed; z-index: 30; pointer-events: none; background: var(--surface-1); border: 1px solid var(--rule-strong);
  border-radius: 6px; padding: 6px 9px; font-size: 0.82rem; box-shadow: 0 6px 18px rgb(0 0 0 / 10%); max-width: 260px; }
details.table-view { margin-top: 6px; }
details.table-view summary { cursor: pointer; font-size: 0.85rem; color: var(--accent-ink); }

/* prose */
.prose { max-width: 820px; }
.prose table { margin: 10px 0 16px; font-size: 0.9rem; }
.prose li { margin: 0.25em 0; }
.prose h2 { border-top: 1px solid var(--rule); padding-top: 1em; }

/* compare */
.picker { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin: 12px 0; }
.picker select { width: 100%; font: inherit; padding: 7px 8px; border: 1px solid var(--rule-strong); border-radius: 6px; background: var(--surface-1); }

/* footer */
.site-footer { margin-top: 48px; border-top: 1px solid var(--rule); background: var(--surface-1); font-size: 0.88rem; color: var(--ink-2); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 10px 22px; padding-top: 18px; padding-bottom: 26px; }
.site-footer a { color: var(--ink-2); }
.site-footer .copy { margin-left: auto; }

@media (max-width: 640px) {
  body { font-size: 15px; }
  .site-header .wrap { gap: 8px 14px; padding-top: 6px; padding-bottom: 6px; }
  .nav { order: 3; flex-basis: 100%; gap: 2px 14px; }
  .score-hero .big { font-size: 2.6rem; }
  th, td { padding: 8px 7px; }
  .hide-sm { display: none; }
  .site-footer .copy { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
@media print { .site-header nav, .lang, .filters, .lang-hint { display: none; } }