:root {
  --bg: #141414;
  --panel: #1b1b1b;
  --fg: #f2f2f2;
  --body: #c9c9c6;
  --muted: #7f7f7f;
  --faint: #4a4a4a;
  --line: #2a2a2a;
  --track: #222222;
  --sft: #3987e5;
  --rl: #d95926;
  --base: #b8b8b4;
  --other: #8a8a8a;
  --heat: 227, 73, 72;
  --good: #3fae7f;
  --bad: #e66767;
  --mark: rgba(237, 161, 0, 0.18);
  --serif: 'EB Garamond', 'Iowan Old Style', 'Times New Roman', serif;
  --sans: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
  color-scheme: dark;
}
:root[data-theme='light'] {
  --bg: #fafaf8;
  --panel: #f1f0ec;
  --fg: #141414;
  --body: #3d3d3a;
  --muted: #74736e;
  --faint: #c9c8c3;
  --line: #e2e1dc;
  --track: #ecebe6;
  --sft: #2a78d6;
  --rl: #eb6834;
  --base: #55544f;
  --other: #8a8984;
  --good: #1a8a5a;
  --bad: #c43c3b;
  --mark: rgba(237, 161, 0, 0.22);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
.grain { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
a { color: inherit; }
code { font: .82em var(--mono); color: var(--body); }

.top, main, .foot { width: min(960px, 100% - 32px); margin-inline: auto; }
.top { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; font-size: 13px; }
.brand { font-family: var(--serif); font-size: 19px; text-decoration: none; letter-spacing: -.01em; }
.top nav { display: flex; align-items: center; gap: 22px; }
.top nav a { text-decoration: none; color: var(--muted); padding-bottom: 3px; border-bottom: 1px solid transparent; }
.top nav a:hover, .top nav a[aria-current] { color: var(--fg); border-color: var(--fg); }
.theme { display: grid; place-items: center; width: 26px; height: 26px; padding: 0; border: 0; border-radius: 4px; background: none; color: var(--muted); cursor: pointer; }
.theme:hover { color: var(--fg); background: var(--track); }
.theme svg { width: 15px; height: 15px; }

h1, h2 { font-family: var(--serif); font-weight: 400; color: var(--fg); margin: 0; }
h1 { font-size: 41px; letter-spacing: -.02em; line-height: 1.1; }
h2 { font-size: 28px; letter-spacing: -.01em; }
.hero { padding: 64px 0 28px; }
.tag { margin: 10px 0 22px; color: var(--body); font-size: 17px; }
.links { display: flex; flex-wrap: wrap; gap: 8px 26px; margin: 0; font-size: 15px; }
.links a { text-decoration: none; border-bottom: 1px solid var(--faint); padding-bottom: 2px; }
.links a:hover { border-color: var(--fg); }
.links a span { color: var(--muted); font-size: 13px; }
.links a.pending { color: var(--muted); cursor: default; }

.headline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 26px 0 8px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.headline div { padding: 20px 22px 22px; border-left: 1px solid var(--line); }
.headline div:first-child { border-left: 0; padding-left: 0; }
.headline strong { display: block; font: 400 40px/1 var(--serif); color: var(--fg); margin-bottom: 10px; font-variant-numeric: tabular-nums; }
.headline span { display: block; font-size: 13px; color: var(--muted); line-height: 1.45; }

section { scroll-margin-top: 16px; }
#leaderboard, #tradeoff, #pressure, #method, #models, #cite { padding-top: 64px; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.lede { max-width: 720px; margin: 0 0 22px; color: var(--body); font-size: 15.5px; }
.note { margin: 14px 0 0; color: var(--muted); font-size: 12.5px; line-height: 1.55; }

.seg { display: inline-flex; flex-wrap: wrap; gap: 2px; font-size: 12px; }
.seg button { padding: 5px 10px; border: 0; border-radius: 4px; background: none; color: var(--muted); font: inherit; cursor: pointer; }
.seg button:hover { color: var(--fg); }
.seg button[aria-selected='true'] { background: var(--track); color: var(--fg); }
.metric-seg { margin-bottom: 6px; }
.metric-desc { margin: 4px 0 14px; font-size: 13px; color: var(--muted); min-height: 1.5em; }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; font: 400 11px var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 8px 10px 10px 0; border-bottom: 1px solid var(--line); }
td { padding: 9px 10px 9px 0; border-bottom: 1px solid var(--line); font-size: 15px; color: var(--body); vertical-align: middle; }
.board td { padding-top: 8px; padding-bottom: 8px; }
.board tr { cursor: default; }
.board tbody tr:hover td { background: color-mix(in srgb, var(--track) 55%, transparent); }
.rank { width: 34px; color: var(--muted); font-variant-numeric: tabular-nums; }
.board td.rank { font-size: 13px; color: var(--muted); }
.mname { white-space: nowrap; color: var(--fg); }
.mname small { margin-left: 8px; font: 10px var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.mname .tagc { margin-left: 8px; font: 500 9.5px var(--sans); letter-spacing: .1em; text-transform: uppercase; padding: 2px 5px; border-radius: 3px; color: var(--bg); }
.tagc.ours_rl { background: var(--rl); } .tagc.ours_sft { background: var(--sft); }
.barcol { width: 52%; }
.num { width: 60px; text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }
td.num { font-size: 13px; }
.bar { position: relative; height: 16px; }
.bar .fill { position: absolute; left: 0; top: 2px; height: 12px; border-radius: 0 4px 4px 0; }
.bar .ci { position: absolute; top: 7px; height: 2px; background: var(--fg); opacity: .5; }
.bar .ci::before, .bar .ci::after { content: ''; position: absolute; top: -3px; width: 1px; height: 8px; background: var(--fg); }
.bar .ci::before { left: 0; } .bar .ci::after { right: 0; }
.bar .val { position: absolute; top: -1px; font: 12px var(--mono); color: var(--fg); white-space: nowrap; font-variant-numeric: tabular-nums; }
.fill.ours_rl, .sw.ours_rl { background: var(--rl); }
.fill.ours_sft, .sw.ours_sft { background: var(--sft); }
.fill.base, .sw.base { background: var(--base); }
.fill.other, .sw.other { background: var(--other); }
.key { display: inline-flex; flex-wrap: wrap; gap: 4px 14px; margin-left: 6px; }
.sw { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 6px; vertical-align: -0.5px; }

.chart { margin: 0; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid { stroke: var(--line); }
.chart .axis-label, .chart .tick { fill: var(--muted); font: 11px var(--sans); }
.chart .axis-label { letter-spacing: .08em; text-transform: uppercase; }
.chart .pt-label { font: 12px var(--sans); fill: var(--body); }
.chart .pt-label.ours { fill: var(--fg); font-weight: 500; }
.chart .pt { stroke: var(--bg); stroke-width: 2; cursor: default; }
.chart .ci-line { stroke-width: 1.2; opacity: .45; }

.heat-wrap { overflow-x: auto; }
.heat { min-width: 760px; }
.heat th { text-align: center; padding-right: 0; white-space: nowrap; }
.heat th:first-child { text-align: left; }
.heat td { text-align: center; padding: 0; height: 30px; font: 12px var(--mono); color: var(--fg); border-bottom: 2px solid var(--bg); border-right: 2px solid var(--bg); font-variant-numeric: tabular-nums; }
.heat td:first-child { text-align: left; font: 14px var(--sans); color: var(--fg); padding-right: 12px; white-space: nowrap; background: none !important; }
.heat th.held { color: var(--fg); }

.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.episode { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 16px 16px 12px; }
.ep-label { margin: 0 0 12px; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.ep-label .bad { color: var(--bad); } .ep-label .good { color: var(--good); }
.msg { font-size: 13.5px; line-height: 1.5; color: var(--body); padding: 8px 10px; border-radius: 5px; margin-bottom: 8px; background: var(--bg); border: 1px solid var(--line); }
.msg b { display: block; font: 500 10px var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 3px; }
.msg.tool { border-color: color-mix(in srgb, var(--good) 55%, var(--line)); }
.msg.tool b { color: var(--good); }
mark { background: var(--mark); color: var(--fg); padding: 0 2px; border-radius: 2px; }
.ep-answer { margin: 10px 0 0; font-size: 13px; color: var(--fg); }

.tasks { margin-top: 30px; }
.tasks td:first-child { color: var(--fg); white-space: nowrap; }
.tasks td.yes { color: var(--good); }
.models td { font-size: 14px; }
.models td:first-child { font-family: var(--mono); font-size: 13px; }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 30px; border-top: 1px solid var(--line); }
.facts div { padding: 16px 16px 4px 0; }
.facts strong { display: block; font: 400 26px var(--serif); color: var(--fg); margin-bottom: 6px; }
.facts span { font-size: 12.5px; color: var(--muted); line-height: 1.45; display: block; }

.bib { margin: 0; padding: 16px 18px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; font: 12.5px/1.6 var(--mono); color: var(--body); overflow-x: auto; }
.limits { padding-top: 48px; }
.limits p { margin: 0; font-size: 12.5px; color: var(--muted); max-width: 820px; }
.limits b { color: var(--body); font-weight: 500; }
.foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 56px; padding: 22px 0 40px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.foot a { color: var(--muted); }

.tip { position: fixed; z-index: 10; max-width: 300px; padding: 10px 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; box-shadow: 0 8px 24px rgba(0,0,0,.35); font-size: 12px; color: var(--body); pointer-events: none; }
.tip h4 { margin: 0 0 6px; font: 500 13px var(--sans); color: var(--fg); }
.tip dl { display: grid; grid-template-columns: 1fr auto; gap: 2px 14px; margin: 0; }
.tip dd { margin: 0; font-family: var(--mono); color: var(--fg); text-align: right; }
.tip p { margin: 8px 0 0; color: var(--muted); }

button:focus-visible, a:focus-visible { outline: 2px solid var(--sft); outline-offset: 2px; }

@media (max-width: 720px) {
  body { font-size: 16px; }
  .top nav { gap: 14px; }
  .top nav a.sec { display: none; }
  h1 { font-size: 34px; }
  .headline, .facts { grid-template-columns: 1fr; }
  .headline div { border-left: 0; padding: 16px 0; border-top: 1px solid var(--line); }
  .headline div:first-child { border-top: 0; }
  .pair { grid-template-columns: 1fr; }
  .barcol { width: 46%; }
  .num { display: none; }
  .mname small { display: none; }
  .tasks td:first-child { white-space: normal; }
}