/* Infrathon: light research pages. */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f6f7f8;
  --panel-3: #edf2f7;
  --hair: rgba(24, 40, 67, 0.09);
  --hair-2: rgba(24, 40, 67, 0.16);
  --hair-3: rgba(24, 40, 67, 0.28);
  --ink: #111111;
  --ink-2: var(--ink);
  --ink-3: var(--ink);
  --crit: #bd3333;
  --m-sol: #2674cb;
  --m-claude: #c24e22;
  --m-qwen: #16845e;
  --m-deepseek: #a36a00;
  --m-glm: #bb3d70;
  --m-astra: #7461cc;

  --f-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --w: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --r: 10px;
  --nav-height: 61px;
  --section-nav-height: 0px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #060709;
  --panel: #0c0e11;
  --panel-2: #111418;
  --panel-3: #171b21;
  --hair: rgba(255, 255, 255, 0.07);
  --hair-2: rgba(255, 255, 255, 0.11);
  --hair-3: rgba(255, 255, 255, 0.2);
  --ink: #ededef;
  --ink-2: #a3a8b1;
  --ink-3: #777d88;
  --crit: #d03b3b;

  --m-sol: #3987e5;
  --m-claude: #d95926;
  --m-qwen: #199e70;
  --m-deepseek: #c98500;
  --m-glm: #d55181;
  --m-astra: #9085e9;

}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(env(safe-area-inset-top, 0px) + var(--nav-height) + var(--section-nav-height) + 16px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 16px/1.7 var(--f-sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
p a, .prose a, .link { color: var(--ink); text-decoration: underline; text-decoration-color: var(--hair-3); text-underline-offset: 3px; }
p a:hover, .prose a:hover, .link:hover { text-decoration-color: var(--ink-2); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 4px; }
img { max-width: 100%; display: block; }
button, input, select { font: inherit; color: inherit; }
.mono { font-family: var(--f-mono); }
.muted { color: var(--ink-3); }
.num { font-variant-numeric: tabular-nums; }
.wrap { max-width: var(--w); margin: 0 auto; padding-inline: var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.label { font: 500 11.5px/1.4 var(--f-sans); letter-spacing: 0; color: var(--ink-3); }
svg text { font-family: var(--f-mono); }
.diagram svg text { font-family: var(--f-sans); }

/* ---------------- chrome ---------------- */
.nav {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30;
  background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--hair);
}
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font: 600 15px/1 var(--f-sans); letter-spacing: -0.01em; }
.brand .v { font: 500 10.5px/1 var(--f-mono); color: var(--ink-3); border: 1px solid var(--hair-2); border-radius: 999px; padding: 4px 7px; }
.nav-links { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a { font-size: 14px; color: var(--ink-2); padding: 7px 11px; border-radius: 7px; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); background: var(--panel-2); }
.nav-links a[aria-current="page"] { color: var(--ink); background: var(--panel-3); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.pill { display: inline-flex; align-items: center; gap: 7px; height: 32px; padding: 0 12px; border-radius: 8px; border: 1px solid var(--hair-2); font-size: 13px; color: var(--ink-2); white-space: nowrap; }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
@media (max-width: 820px) { .nav .wrap { gap: 14px; } .nav-right { display: flex; } .brand .v { display: none; } }


/* ---------------- shared blocks ---------------- */
.page-head { padding-block: clamp(40px, 6vw, 72px) 28px; border-bottom: 1px solid var(--hair); position: relative; overflow: hidden; }

.page-head .wrap { position: relative; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font: 500 13px/1.4 var(--f-sans); color: var(--ink-3); letter-spacing: 0; }
.crumbs a:hover { color: var(--ink); }
h1, h2, h3 { text-wrap: balance; letter-spacing: -0.02em; }
.page-head h1 { font: 600 clamp(30px, 3.4vw, 36px)/1.18 var(--f-sans); letter-spacing: -0.035em; margin: 14px 0 0; }
.page-head p.lede { margin: 16px 0 0; color: var(--ink-2); font-size: 16.5px; max-width: 70ch; }
section.sec { padding-block: clamp(36px, 5vw, 56px); }
section.sec + section.sec { border-top: 1px solid var(--hair); }
.sec-title { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.sec-title h2 { font: 600 clamp(22px, 2.4vw, 28px)/1.15 var(--f-sans); margin: 0; }
.sec-title p { margin: 6px 0 0; color: var(--ink-2); max-width: 72ch; font-size: 14.5px; }
.sec-title .more { font-size: 13.5px; color: var(--ink-2); white-space: nowrap; }
.sec-title .more:hover { color: var(--ink); }

.card {
  background: var(--panel);
  border: 1px solid var(--hair); border-radius: var(--r);
}
.card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; padding: 16px 20px; border-bottom: 1px solid var(--hair); }
.card-head h2, .card-head h3 { margin: 0; font: 600 16px/1.3 var(--f-sans); letter-spacing: -0.01em; }
.card-head p { margin: 3px 0 0; color: var(--ink-3); font-size: 13px; }
.card-body { padding: 18px 20px; }
.card-foot { padding: 12px 20px 14px; border-top: 1px solid var(--hair); font-size: 12.5px; color: var(--ink-3); line-height: 1.55; }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.seg { display: inline-flex; flex-wrap: wrap; padding: 3px; gap: 2px; border-radius: 9px; background: var(--bg); border: 1px solid var(--hair); }
.seg button { border: 0; background: none; cursor: pointer; padding: 5px 10px; border-radius: 6px; font-size: 12.5px; color: var(--ink-2); white-space: nowrap; }
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--panel-3); color: var(--ink); box-shadow: inset 0 0 0 1px var(--hair-2); }
.seg button .n { color: var(--ink-3); margin-left: 5px; font-family: var(--f-mono); font-size: 11px; }
.tool-label { font: 500 12px/1 var(--f-sans); letter-spacing: 0; color: var(--ink-3); margin-right: 4px; }
.tool { display: inline-flex; align-items: center; gap: 6px; }

.btn { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 9px; font-size: 14px; font-weight: 500; border: 1px solid var(--hair-2); background: var(--panel-2); white-space: nowrap; }
.btn:hover { border-color: var(--hair-3); }
.btn.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn.primary:hover { background: var(--ink-2); border-color: var(--ink-2); }
.btn svg { flex: none; }

.chip { display: inline-flex; align-items: center; gap: 5px; font: 500 10.5px/1 var(--f-mono); padding: 4px 6px; border-radius: 5px; border: 1px solid var(--hair-2); color: var(--ink-2); white-space: nowrap; }
.flag { font: 600 10px/1 var(--f-mono); color: var(--ink-3); vertical-align: super; margin-left: 2px; }
.who { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; min-width: 0; }
.who > svg { flex: none; }

table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data th { text-align: left; font: 500 12px/1.4 var(--f-sans); letter-spacing: 0; color: var(--ink-3); padding: 10px 12px; border-bottom: 1px solid var(--hair); white-space: nowrap; background: var(--panel); position: sticky; top: 0; z-index: 1; }
.data td { padding: 11px 12px; border-bottom: 1px solid var(--hair); vertical-align: middle; }
.data th:first-child, .data td:first-child { padding-left: 20px; }
.data th:last-child, .data td:last-child { padding-right: 20px; }
.data tbody tr:last-child td { border-bottom: 0; }
.data td.n { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--f-mono); font-size: 12.5px; color: var(--ink-2); white-space: nowrap; }
.data th.n { text-align: right; }
.data tbody tr.rowlink { cursor: pointer; }
.data tbody tr.rowlink:hover td { background: var(--panel-2); }
.scroll-x { overflow-x: auto; }

#tip {
  position: fixed; z-index: 80; pointer-events: none; min-width: 170px; max-width: 320px;
  background: color-mix(in srgb, var(--panel) 96%, transparent); border: 1px solid var(--hair-2); border-radius: 9px; padding: 10px 12px;
  font-size: 12.5px; color: var(--ink-2); box-shadow: 0 12px 32px rgba(16,30,55,0.16); backdrop-filter: blur(6px);
}
#tip .t { font: 500 10.5px/1.3 var(--f-mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 7px; }
#tip .r { display: grid; grid-template-columns: 14px auto 1fr; align-items: center; gap: 8px; line-height: 1.6; }
#tip .r b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
#tip .r span { color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#tip .lk { height: 2px; border-radius: 1px; }
#tip .note { margin-top: 7px; color: var(--ink-3); font-size: 11.5px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--hair); margin-bottom: 16px; }
.tabs button { border: 0; background: none; padding: 9px 12px; margin-bottom: -1px; cursor: pointer; font-size: 13.5px; color: var(--ink-3); border-bottom: 2px solid transparent; }
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--ink); }
figure { margin: 0; }
figcaption { margin-top: 10px; font-size: 12.5px; color: var(--ink-3); max-width: 90ch; }

.legend { display: flex; flex-wrap: wrap; gap: 6px; }
.legend button { display: inline-flex; align-items: center; gap: 7px; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--hair); background: var(--panel); cursor: pointer; font-size: 12.5px; color: var(--ink-2); }
.legend button:hover { color: var(--ink); border-color: var(--hair-2); }
.legend button[aria-pressed="true"] { color: var(--ink); border-color: var(--hair-3); background: var(--panel-3); }

/* ---------------- home: paper header ---------------- */
.hero { border-bottom: 1px solid var(--hair); }
.hero .wrap { display: grid; gap: 26px; text-align: center; padding-block: clamp(38px, 5vw, 64px) 34px; }
.paper-title { margin: 0; font: 600 clamp(28px, 3.2vw, 36px)/1.25 var(--f-sans); letter-spacing: -.035em; }
.paper-title > span { display: block; }
.paper-title .paper-subtitle { margin-top: 8px; font: inherit; letter-spacing: inherit; }
.authors { margin: 0 auto; display: grid; gap: 8px; max-width: 1040px; font-size: 15px; line-height: 1.6; }
.author-row { list-style: none; margin: 0; padding: 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 16px; }
.authors li { white-space: nowrap; }
.authors a { color: var(--m-sol); text-decoration: none; }
.authors a:hover { text-decoration: underline; text-underline-offset: 3px; }
.authors sup, .affiliations sup { font-size: 10px; margin-left: 2px; color: var(--ink-3); }
.affiliations { max-width: 1000px; margin: 14px auto 0; font-size: 12.5px; color: var(--ink-2); text-wrap: balance; }
.affiliations > span { display: inline-block; margin: 1px 7px; }
.affiliations sup { margin: 0 3px 0 0; }
.team-note { margin: 8px 0 0; color: var(--ink-3); font-size: 11.5px; }
.institution-logos { display: grid; grid-template-columns: 1.25fr .8fr 1fr 1.8fr 1.1fr 1.1fr 1.2fr 1.4fr; align-items: center; gap: 18px; margin-top: 24px; padding: 10px 0; }
.institution-logos img { width: 100%; height: 42px; object-fit: contain; }
:root[data-theme="dark"] .institution-logos { background: #fff; border-radius: 8px; padding: 12px 16px; }
.resource-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.resource-button { display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--hair-2); border-radius: 24px; padding: 7px 15px; background: var(--panel-2); color: var(--ink-2); font-size: 13px; }
.resource-button:disabled { cursor: default; opacity: 1; }
.resource-button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.resource-status { margin: 6px 0 0; font-size: 10px; color: var(--ink-3); }
@media (max-width: 760px) {
  .institution-logos { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px 14px; }
  .authors { font-size: 13.5px; gap: 6px; }
  .author-row { gap: 6px 12px; }
  .affiliations { font-size: 11.5px; }
  .institution-logos img { height: 34px; }
}

.die { padding: 14px; }
.die-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 2px 4px 12px; }
.die-body { overflow-x: auto; }
.die-body > svg { width: 100%; min-width: 500px; height: auto; display: block; }
.die .tile { cursor: pointer; }
.die .tile rect.bg { transition: fill-opacity .15s ease, stroke-opacity .15s ease; }
.die .tile:hover rect.bg, .die .tile:focus rect.bg { fill-opacity: 0.42; stroke-opacity: 1; }
.die .tile:focus { outline: none; }
.die-legend { display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 12px 4px 2px; font-size: 12px; color: var(--ink-3); }
@keyframes sweep { from { transform: translateX(-150px); } to { transform: translateX(600px); } }
.die .sweep { animation: sweep 7s linear infinite; }
@media (prefers-reduced-motion: reduce) { .die .sweep { animation: none; display: none; } }

/* ---------------- home: leaderboard ---------------- */
.lb-controls { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--hair); }
table.lb { width: 100%; min-width: 780px; border-collapse: collapse; }
.lb th { text-align: left; font: 500 12px/1.4 var(--f-sans); letter-spacing: 0; color: var(--ink-3); padding: 12px 12px; border-bottom: 1px solid var(--hair); white-space: nowrap; }
.lb td { padding: 14px 12px; border-bottom: 1px solid var(--hair); vertical-align: middle; }
.lb tbody tr:last-child td { border-bottom: 0; }
.lb tbody tr:first-child td { background: var(--panel-2); }
.lb th:first-child, .lb td:first-child { padding-left: 20px; }
.lb th:last-child, .lb td:last-child { padding-right: 20px; }
.lb .rk { font: 500 13px/1 var(--f-mono); color: var(--ink-3); width: 36px; }
.lb .model { display: flex; align-items: center; gap: 12px; }
.lb .model b { display: block; font-weight: 500; font-size: 14.5px; letter-spacing: -0.005em; white-space: nowrap; }
.lb .model small { display: block; font: 400 11.5px/1.3 var(--f-mono); color: var(--ink-3); margin-top: 2px; white-space: nowrap; }
.badge { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; background: var(--panel-3); border: 1px solid var(--hair-2); flex: none; }
.lb .score { font: 600 22px/1 var(--f-sans); letter-spacing: -0.02em; white-space: nowrap; }
.lb .score small { display: block; margin-top: 5px; font: 400 11px/1 var(--f-mono); color: var(--ink-3); letter-spacing: 0; }
.lb .barcell { width: 32%; min-width: 220px; }
.lb .barcell svg { width: 100%; height: 28px; display: block; }
.lb td.n { text-align: right; font: 400 13px/1.2 var(--f-mono); color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lb th.n { text-align: right; }
.lb td.n small { display: block; color: var(--ink-3); font-size: 10.5px; margin-top: 4px; }

/* ---------------- home: results matrix ---------------- */
table.matrix { width: 100%; min-width: 1000px; border-collapse: collapse; font-size: 13px; }
.matrix th { font: 500 10.5px/1.3 var(--f-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); padding: 12px 4px; border-bottom: 1px solid var(--hair); text-align: left; white-space: nowrap; }
.matrix th:first-child { padding-left: 20px; }
.matrix td { padding: 4px 3px; border-bottom: 1px solid var(--hair); }
.matrix td.task { padding: 8px 12px 8px 20px; min-width: 220px; }
.matrix td.task b { font-weight: 500; display: block; font-size: 13.5px; }
.matrix td.task small { font: 400 11px/1.3 var(--f-mono); color: var(--ink-3); }
.matrix tr.grp td { padding: 18px 20px 8px; font: 500 10.5px/1.3 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); border-bottom: 1px solid var(--hair); }
.matrix tr.grp td span { color: var(--ink-3); margin-left: 8px; letter-spacing: 0.04em; }
.matrix tbody tr.row { cursor: pointer; }
.matrix tbody tr.row:hover td { background: var(--panel-2); }
.matrix td:last-child { padding-right: 20px; }
.cell { position: relative; height: 34px; border-radius: 6px; overflow: hidden; background: var(--panel-2); display: flex; align-items: center; padding: 0 9px; font: 500 12px/1 var(--f-mono); color: var(--ink-2); font-variant-numeric: tabular-nums; min-width: 96px; white-space: nowrap; }
.cell i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--hair); }
.cell span { position: relative; }
.cell.win { color: var(--ink); box-shadow: inset 0 0 0 1px var(--wc); background: color-mix(in srgb, var(--wc) 9%, transparent); }
.cell.win i { background: color-mix(in srgb, var(--wc) 28%, transparent); }
.cell.none { color: var(--ink-3); background: transparent; box-shadow: inset 0 0 0 1px var(--hair); justify-content: center; }
.matrix td.unit { font: 400 11px/1.2 var(--f-mono); color: var(--ink-3); padding-left: 10px; white-space: nowrap; }

/* highlights */
.hl-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 1060px) { .hl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .hl-grid { grid-template-columns: minmax(0, 1fr); } }
.hl { display: grid; gap: 10px; padding: 14px 14px 16px; align-content: start; }
.hl:hover { border-color: var(--hair-3); }
.hl .meta { display: flex; justify-content: space-between; gap: 8px; }
.hl h3 { margin: 0; font: 600 15px/1.3 var(--f-sans); letter-spacing: -0.01em; }
.hl p { margin: 0; font-size: 13px; color: var(--ink-2); line-height: 1.5; }
.hl svg { width: 100%; height: auto; display: block; background: var(--bg); border-radius: 8px; border: 1px solid var(--hair); }

.facts-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.facts-strip > a { padding: 22px 22px 20px; border-left: 1px solid var(--hair); display: grid; gap: 8px; align-content: start; }
.facts-strip > a:first-child { border-left: 0; }
.facts-strip > a:hover { background: var(--panel-2); }
.facts-strip b { font: 600 32px/1 var(--f-sans); letter-spacing: -0.03em; }
.facts-strip b small { font-size: 15px; color: var(--ink-3); font-weight: 500; letter-spacing: 0; margin-left: 4px; }
.facts-strip p { margin: 0; font-size: 13.5px; color: var(--ink-2); line-height: 1.5; }
@media (max-width: 900px) { .facts-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } .facts-strip > a:nth-child(3) { border-left: 0; } .facts-strip > a:nth-child(n+3) { border-top: 1px solid var(--hair); } }
@media (max-width: 520px) { .facts-strip { grid-template-columns: minmax(0, 1fr); } .facts-strip > a { border-left: 0; border-top: 1px solid var(--hair); } .facts-strip > a:first-child { border-top: 0; } }

.why { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
@media (max-width: 900px) { .why { grid-template-columns: minmax(0, 1fr); } }
.why h2 { font: 600 clamp(24px, 2.8vw, 34px)/1.12 var(--f-sans); margin: 10px 0 14px; }
.why p { color: var(--ink-2); margin: 0 0 12px; max-width: 62ch; }
.diagram { overflow-x: auto; }
.diagram svg { width: 100%; min-width: 460px; height: auto; display: block; }

/* ---------------- tasks page ---------------- */
.task-name b { display: block; font-weight: 500; font-size: 14px; }
.task-name small { font-size: 12px; color: var(--ink-3); }
.finger { width: 120px; height: 24px; display: block; }
.search { height: 32px; min-width: 200px; border-radius: 8px; border: 1px solid var(--hair-2); background: var(--bg); padding: 0 10px; font-size: 13px; color: var(--ink); }
.search::placeholder { color: var(--ink-3); }

/* ---------------- task page ---------------- */
.metric-explanation { font-size: 13px; line-height: 1.7; color: var(--ink-2); }
.metric-explanation p { margin: 0 0 14px; }
.metric-explanation .metric-intro { color: var(--ink); font-weight: 500; }
.metric-formula { margin-bottom: 16px; padding: 12px; border: 1px solid var(--hair); border-radius: 8px; background: var(--panel-2); color: var(--ink); font: 400 12px/1.8 var(--f-mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.metric-explanation .metric-example { padding-left: 12px; border-left: 2px solid var(--hair-3); }
.metric-explanation h4 { margin: 20px 0 8px; font-size: 13px; font-weight: 600; color: var(--ink); }
.metric-explanation ul { margin: 0; padding-left: 18px; }
.metric-explanation li + li { margin-top: 8px; }
.metric-explanation > :last-child { margin-bottom: 0; }
.task-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr); gap: 16px; align-items: start; }
@media (max-width: 960px) { .task-grid { grid-template-columns: minmax(0, 1fr); } }
.stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
dl.facts { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 9px 16px; margin: 0; font-size: 13.5px; }
.facts dt { font: 500 10.5px/1.9 var(--f-mono); letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); }
.facts dd { margin: 0; color: var(--ink-2); }
.note-box { margin-top: 16px; padding: 12px 14px; border-radius: 9px; border: 1px solid var(--hair-2); background: var(--panel-2); font-size: 13px; color: var(--ink-2); }
.note-box b { display: block; font: 500 10.5px/1.5 var(--f-mono); letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink); margin-bottom: 3px; }
.bars { display: grid; gap: 8px; }
.bar-row { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 12px; align-items: center; font-size: 13px; }
.bar-row > svg { width: 100%; height: 22px; display: block; overflow: visible; }
.bar-row .who { color: var(--ink-2); }
.chart svg { width: 100%; height: auto; display: block; }
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; }
.pager a { display: grid; gap: 2px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--hair); min-width: 0; flex: 1; }
.pager a:hover { border-color: var(--hair-3); }
.pager a.next { text-align: right; }
.pager small { color: var(--ink-3); font: 500 10.5px/1.4 var(--f-mono); letter-spacing: 0.07em; text-transform: uppercase; }
.trace { overflow-x: auto; }
.trace svg { width: 100%; min-width: 640px; height: auto; display: block; }
.trace-keys { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 12px; color: var(--ink-3); }
.key { display: inline-flex; align-items: center; gap: 7px; }
.key i { display: inline-block; width: 2px; height: 11px; background: var(--ink-3); }
.key i.bad { background: var(--crit); }
.key i.rej { width: 7px; height: 7px; border-radius: 1px; background: transparent; box-shadow: inset 0 0 0 1.5px var(--crit); }
.key i.infra { background: transparent; border-left: 2px dotted var(--ink-3); width: 0; }

/* ---------------- analysis page ---------------- */
.subnav { position: sticky; top: calc(env(safe-area-inset-top, 0px) + var(--nav-height)); z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--hair); }
.subnav .wrap { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; height: 46px; align-items: center; }
.subnav a { font-size: 13.5px; color: var(--ink-3); padding: 6px 10px; border-radius: 7px; white-space: nowrap; }
.subnav a:hover { color: var(--ink); background: var(--panel-2); }
.subnav a[aria-current="page"], .subnav a[aria-current="location"] { color: var(--ink); background: var(--panel-3); }
.subnav a[role="tab"][aria-selected="true"] { color: var(--ink); background: var(--panel-3); }
main[data-section-tabs] > section.sec { min-height: calc(100dvh - var(--nav-height) - var(--section-nav-height)); border-top: 0; }
main[data-section-tabs] > section.sec[hidden] { display: none; }
.cat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 900px) { .cat-grid { grid-template-columns: minmax(0, 1fr); } }
.cat { padding: 14px 16px 10px; }
.cat .h { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; margin-bottom: 8px; }
.cat .h b { font-size: 13.5px; font-weight: 600; }
.cat .h span { font: 400 11px/1 var(--f-mono); color: var(--ink-3); }
.cat svg { width: 100%; height: auto; display: block; }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 960px) { .two { grid-template-columns: minmax(0, 1fr); } }
table.pmat { border-collapse: separate; border-spacing: 3px; width: 100%; }
.pmat th { font: 500 10.5px/1 var(--f-mono); color: var(--ink-3); padding: 6px 4px; text-align: center; }
.pmat th[scope="row"] { text-align: left; color: var(--ink-2); white-space: nowrap; font-family: var(--f-sans); font-size: 12.5px; font-weight: 400; }
.pmat td { height: 38px; text-align: center; border-radius: 5px; font: 500 12px/1 var(--f-mono); background: color-mix(in srgb, var(--ink) calc(var(--a) * 80%), transparent); color: var(--ink-2); }
.pmat td.hot { color: var(--bg); }
.pmat td.zero { background: transparent; box-shadow: inset 0 0 0 1px var(--hair); color: transparent; }
.stat-tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat-tiles > div { padding: 18px 20px; border-left: 1px solid var(--hair); border-top: 1px solid var(--hair); }
.stat-tiles > div:nth-child(odd) { border-left: 0; }
.stat-tiles > div:nth-child(-n+2) { border-top: 0; }
.stat-tiles b { font: 600 30px/1 var(--f-sans); letter-spacing: -0.03em; }
.stat-tiles b small { font-size: 14px; font-weight: 500; color: var(--ink-3); margin-left: 4px; letter-spacing: 0; }
.stat-tiles p { margin: 9px 0 0; font-size: 13px; color: var(--ink-2); line-height: 1.5; }
@media (max-width: 520px) { .stat-tiles { grid-template-columns: minmax(0, 1fr); } .stat-tiles > div { border-left: 0; } .stat-tiles > div:nth-child(2) { border-top: 1px solid var(--hair); } }
.drop-row { display: grid; grid-template-columns: minmax(180px, 1.1fr) minmax(120px, 2fr) minmax(160px, 1fr); gap: 14px; align-items: center; padding: 9px 0; border-top: 1px solid var(--hair); }
.drop-row:first-child { border-top: 0; }
.drop-row .who { font-size: 13.5px; overflow: hidden; }
.drop-row .who span { overflow: hidden; text-overflow: ellipsis; }
.drop-row > svg { width: 100%; height: 14px; display: block; }
.drop-row .vals { font: 400 12px/1.3 var(--f-mono); color: var(--ink-2); text-align: right; white-space: nowrap; }
@media (max-width: 640px) { .drop-row { grid-template-columns: minmax(0, 1fr); gap: 6px; } .drop-row .vals { text-align: left; } }
.multiples { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 10px; }
.mult { padding: 12px 12px 6px; display: block; }
.mult:hover { border-color: var(--hair-3); }
.mult .h { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.mult .h b { font-size: 13.5px; font-weight: 500; }
.mult .h span { font: 400 10.5px/1 var(--f-mono); color: var(--ink-3); white-space: nowrap; }
.mult svg { width: 100%; height: auto; display: block; margin-top: 6px; }
.grp-label { grid-column: 1 / -1; padding: 14px 0 2px; font: 500 10.5px/1.3 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }
.grp-label:first-child { padding-top: 0; }
.eff { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 860px) { .eff { grid-template-columns: minmax(0, 1fr); } }
.find-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 860px) { .find-grid { grid-template-columns: minmax(0, 1fr); } }
.find { padding: 20px; display: grid; gap: 12px; align-content: start; }
.find .big { font: 600 28px/1.08 var(--f-sans); letter-spacing: -0.025em; }
.find .big small { display: block; margin-top: 8px; font: 400 14px/1.5 var(--f-sans); color: var(--ink-2); letter-spacing: 0; }
.find ul { margin: 0; padding-left: 18px; font-size: 13.5px; color: var(--ink-2); }
.find li { margin-bottom: 6px; }
.find li b { color: var(--ink); font-weight: 500; }
.chart-note { margin: 12px 0; color: var(--ink-3); font-size: 12px; line-height: 1.6; }
.featured-trajectories { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.featured-meta { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 9px; color: var(--ink-3); font: 400 10px/1.4 var(--f-mono); text-transform: uppercase; letter-spacing: .04em; }
.chart-unit { margin-top: 4px; color: var(--ink-3); font: 400 10.5px/1.5 var(--f-mono); }
.chart-badge { padding: 5px 9px; border: 1px solid var(--hair); border-radius: 6px; color: var(--ink-2); background: var(--panel-2); font: 400 10.5px/1.4 var(--f-mono); white-space: nowrap; align-self: start; }
.distribution-card { margin-bottom: 16px; }
.distribution-card .label, .behavior-charts .label { display: block; margin-bottom: 8px; font-size: 10px; }
.distribution-card .card-head { flex-wrap: wrap; }
.distribution-controls { width: fit-content; flex-wrap: wrap; }
#first-score-chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.distribution-point { cursor: crosshair; }
a.distribution-point { cursor: pointer; }
.distribution-point:hover circle, .distribution-point:focus circle { fill-opacity: 1; stroke: var(--ink); stroke-width: 1.5; }
.distribution-median { cursor: help; }
.behavior-charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 20px; }
.behavior-charts > .card { display: flex; flex-direction: column; }
.behavior-charts .card-body { flex: 1; }
.gain-example { display: block; padding: 16px 0; border-bottom: 1px solid var(--hair); }
.gain-example:first-child { padding-top: 0; }
.gain-example:hover .gain-heading b { text-decoration: underline; text-underline-offset: 3px; }
.gain-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.gain-heading b { display: block; font-size: 15px; font-weight: 500; }
.gain-heading span { display: block; margin-top: 2px; color: var(--ink-3); font-size: 11px; }
.gain-heading strong { font: 600 24px/1.2 var(--f-sans); letter-spacing: -.03em; color: var(--case-color); }
.gain-track { height: 7px; margin: 12px 0; border-radius: 4px; background: var(--panel-3); overflow: hidden; }
.gain-track span { display: block; height: 100%; border-radius: inherit; background: var(--case-color); }
.gain-scores { display: grid; grid-template-columns: 1fr 25px 1.5fr; align-items: end; gap: 8px; }
.gain-scores > span:last-child { text-align: right; }
.gain-scores small { display: block; margin-bottom: 3px; color: var(--ink-3); font-size: 10px; }
.gain-scores b { font: 400 11.5px/1.4 var(--f-mono); }
.gain-arrow { color: var(--ink-3); text-align: center; }
#repeat-comparison { --repeat-0: var(--panel-3); --repeat-1: var(--m-astra); --repeat-2: var(--m-claude); }
.repeat-kpi { display: flex; justify-content: space-between; gap: 12px; align-items: start; padding-bottom: 22px; margin-bottom: 22px; border-bottom: 1px solid var(--hair); }
.repeat-kpi strong { display: block; font: 600 clamp(22px, 2.5vw, 32px)/1.2 var(--f-sans); letter-spacing: -.035em; }
.repeat-half { margin-bottom: 28px; }
.repeat-heading { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 12px; }
.repeat-heading b { font-weight: 500; }
.repeat-heading span { font: 400 10px/1.5 var(--f-mono); color: var(--ink-3); }
.repeat-stack { display: flex; height: 42px; border-radius: 7px; gap: 2px; }
.repeat-0 { --repeat-color: var(--repeat-0); }
.repeat-1 { --repeat-color: var(--repeat-1); }
.repeat-2 { --repeat-color: var(--repeat-2); }
.repeat-segment { min-width: 0; padding: 0; border: 0; background: var(--repeat-color); color: var(--panel); font: 500 12px/1 var(--f-mono); cursor: pointer; }
.repeat-segment:first-child { border-radius: 7px 0 0 7px; color: var(--ink-2); }
.repeat-segment:last-child { border-radius: 0 7px 7px 0; }
.repeat-segment:hover, .repeat-segment:focus-visible { box-shadow: inset 0 0 0 2px var(--ink); }
.repeat-counts, .repeat-legend { display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: 10px; color: var(--ink-2); }
.repeat-counts { margin-top: 8px; }
.repeat-count { display: inline-flex; align-items: center; gap: 5px; }
.repeat-count i { display: inline-block; height: 8px; width: 8px; border-radius: 2px; background: var(--repeat-color); border: 1px solid var(--hair); }
.repeat-legend { padding-top: 4px; }
.repeat-takeaway { margin: 22px 0 0; padding: 14px; border-radius: 8px; font-size: 12px; line-height: 1.6; background: var(--panel-2); color: var(--ink-2); }
.repeat-takeaway b { color: var(--ink); }
@media (max-width: 860px) { .featured-trajectories { grid-template-columns: repeat(2, minmax(0, 1fr)); } .behavior-charts { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { .featured-trajectories { grid-template-columns: minmax(0, 1fr); } .distribution-card .card-body { padding-inline: 12px; } .distribution-controls button { padding-inline: 9px; } }
details.notes { font-size: 13px; color: var(--ink-2); }
details.notes summary { cursor: pointer; color: var(--ink-2); }
details.notes ul { margin: 10px 0 0; padding-left: 18px; }
details.notes li { margin-bottom: 6px; }

/* ---------------- runs page ---------------- */
.run-controls { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; }
.select { height: 34px; border-radius: 8px; border: 1px solid var(--hair-2); background-color: var(--bg); padding: 0 30px 0 10px; font-size: 13.5px; color: var(--ink); appearance: none; max-width: 100%;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 11px) 52%; background-size: 4px 4px; background-repeat: no-repeat; }
.kpis { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-bottom: 1px solid var(--hair); }
.kpis > div { padding: 16px 20px; border-left: 1px solid var(--hair); }
.kpis > div:first-child { border-left: 0; }
.kpis b { display: block; font: 600 22px/1.1 var(--f-sans); letter-spacing: -0.02em; }
.kpis span { display: block; margin-top: 6px; font: 500 12px/1.4 var(--f-sans); letter-spacing: 0; color: var(--ink-3); }
@media (max-width: 860px) { .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); } .kpis > div { border-top: 1px solid var(--hair); } .kpis > div:nth-child(odd) { border-left: 0; } }
.log { max-height: 460px; overflow: auto; }
.status { display: inline-flex; align-items: center; gap: 6px; font: 500 11px/1 var(--f-mono); padding: 4px 7px; border-radius: 5px; border: 1px solid var(--hair-2); color: var(--ink-2); white-space: nowrap; }
.status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
.status.v::before { background: #0ca30c; }
.status.x::before, .status.r::before { background: var(--crit); }
.status.r::before { border-radius: 1px; }
.status.n::before, .status.w::before { background: transparent; box-shadow: inset 0 0 0 1.5px var(--ink-3); }
.data th.sortable { cursor: pointer; }
.data th.sortable:hover { color: var(--ink); }
.data th[aria-sort] { color: var(--ink); }

/* ---------------- method page ---------------- */
.framework-figure { margin: 0; }
.framework-art { display: block; padding: clamp(10px, 2vw, 28px); background: #fff; border: 1px solid var(--hair-2); border-radius: 12px; }
.framework-art img { display: block; width: 100%; height: auto; }
.framework-art:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.framework-figure figcaption { margin-top: 14px; color: var(--ink-2); font-size: 13px; }
.architecture-summary { display: grid; gap: 36px; }
.architecture-summary h2 { font-size: 20px; font-weight: 600; margin: 0 0 12px; }
.architecture-key { margin: 0; }
.architecture-key > div { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 8px 24px; padding: 14px 0; border-bottom: 1px solid var(--hair); }
.architecture-key > div:last-child { border-bottom: 0; }
.architecture-key dt { display: flex; align-items: baseline; gap: 12px; font-size: 15px; font-weight: 600; }
.architecture-key dd { margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.65; }
.key-symbol { flex: 0 0 20px; font: 500 17px/1.4 var(--f-mono); }
@media (max-width: 600px) { .architecture-key > div { grid-template-columns: 1fr; } }
.task-detail-hint { color: #bd3333; font-size: 14px; font-weight: 500; margin: 0 0 16px; }
html[data-theme="dark"] .task-detail-hint { color: #ff8e8e; }
.facts dd { min-width: 0; overflow-wrap: anywhere; }
.card-head > * { min-width: 0; }
.run-controls { min-width: 0; }
.run-controls .select { width: min(100%, 340px); }

/* ---------------- home: task map ---------------- */
.map-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 40px); align-items: start; }
@media (max-width: 980px) { .map-grid { grid-template-columns: minmax(0, 1fr); } }

@media (max-width: 600px) {
  .nav .wrap { flex-wrap: wrap; height: auto; padding-block: 10px 8px; gap: 7px 12px; }
  .nav-links { order: 3; width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-links a { font-size: 12.5px; padding: 6px 10px; }
  .nav-right { margin-left: auto; }
}

/* All tasks in the same three-column, two-stage structure as the task map. */
#results-legend { margin-bottom: 24px; }
.results-stage + .results-stage { margin-top: 34px; }
.results-stage-title { margin: 0 0 16px; font-size: 21px; font-weight: 600; }
.results-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: start; }
.result-category { display: grid; gap: 12px; }
.result-category-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px; padding-bottom: 10px; border-bottom: 1px solid var(--hair-2); }
.result-category-head h4 { margin: 0; font-size: 14px; font-weight: 600; }
.result-category-head span { font: 400 10px/1.4 var(--f-mono); color: var(--ink-3); }
.result-task { padding: 14px 12px 8px; }
.result-task h5 { margin: 0; font-size: 13px; font-weight: 500; letter-spacing: -.01em; }
.result-task .chart-unit { font-size: 10px; margin-top: 5px; }
.result-task svg { margin-top: 8px; }
@media (max-width: 760px) { .results-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; } .result-category { grid-template-columns: repeat(2, minmax(0, 1fr)); } .result-category-head { grid-column: 1 / -1; } }
@media (max-width: 520px) { .result-category { grid-template-columns: minmax(0, 1fr); } }

/* Visible return control on task detail pages. */
.task-back { margin-bottom: 18px; cursor: pointer; }

/* Reading scale and compact navigation. */
.nav-community { font-size: 13px; padding: 6px 8px; white-space: nowrap; color: var(--ink-2); }
.nav-community:hover { color: var(--ink); }
@media (max-width: 980px) {
  .nav .wrap { flex-wrap: wrap; height: auto; padding-block: 10px 8px; gap: 7px 12px; }
  .nav-links { order: 3; width: 100%; display: flex; }
  .nav-links a { font-size: 13px; padding: 6px 10px; }
}
@media (max-width: 600px) {
  .nav-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-right { gap: 4px; }
  .nav-community { padding-inline: 4px; font-size: 12px; }
}