/* ==========================================================================
   Geometric Latent Reasoning — project page
   ========================================================================== */

:root {
  --bg: #faf9f6;
  --surface: #ffffff;
  --surface-2: #f3f1ec;
  --ink: #16181d;
  --ink-2: #3a3f48;
  --muted: #646b77;
  --line: #e6e2d9;
  --line-2: #d6d1c5;

  /* Semantic colors, lifted from the paper's figures */
  --glr: #e5484d;        /* GLR / learned displacement (red arrows) */
  --glr-soft: rgba(229, 72, 77, 0.10);
  --cot: #8a8f98;        /* CoT-SFT baseline (gray, as in the plots) */
  --cot-soft: rgba(138, 143, 152, 0.14);
  --latent: #d9730d;     /* latent steps (orange) */
  --latent-soft: rgba(217, 115, 13, 0.12);
  --token: #007882;      /* special tokens (teal) */
  --embed: #8b8bf5;      /* token embeddings (lavender dots) */
  --embed-ring: #6f6ff0;
  --embed-ink: #4b4bd0;  /* lavender dark enough for text */
  --good: #1f8a4c;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(20, 20, 30, 0.04), 0 8px 28px rgba(20, 20, 30, 0.06);
  --max: 1120px;
  --prose: 760px;

  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0e1014;
  --surface: #161920;
  --surface-2: #1c2029;
  --ink: #ecebe7;
  --ink-2: #c9ccd3;
  --muted: #9aa1ad;
  --line: #272c36;
  --line-2: #343a46;
  --glr: #f26b6b;
  --glr-soft: rgba(242, 107, 107, 0.14);
  --cot: #8f96a1;
  --cot-soft: rgba(143, 150, 161, 0.16);
  --latent: #f0923a;
  --latent-soft: rgba(240, 146, 58, 0.15);
  --token: #4cc0c9;
  --embed: #a3a3ff;
  --embed-ring: #8d8dff;
  --embed-ink: #b4b4ff;
  --good: #45c07a;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 30px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration-color: var(--line-2); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
code, kbd, .mono { font-family: var(--mono); font-size: 0.88em; }
::selection { background: var(--glr-soft); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.prose { max-width: var(--prose); }
@media (max-width: 640px) { .wrap { padding: 0 16px; } body { font-size: 16px; } }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; text-decoration: none; }
.brand-mark { width: 26px; height: 26px; flex: none; }
.brand-short { display: none; }
.nav-links { display: flex; gap: 4px; margin-left: auto; list-style: none; padding: 0; margin-top: 0; margin-bottom: 0; }
.nav-links a {
  display: block; padding: 6px 11px; border-radius: 8px;
  font-size: 14.5px; color: var(--muted); text-decoration: none; font-weight: 500;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); background: var(--surface-2); }
.icon-btn {
  width: 36px; height: 36px; border-radius: 9px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); display: grid; place-items: center; cursor: pointer;
}
.icon-btn:hover { border-color: var(--line-2); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }
@media (max-width: 960px) { .nav-links { display: none; } .nav-inner > .icon-btn { margin-left: auto; } }
@media (max-width: 400px) { .brand-long { display: none; } .brand-short { display: inline; } }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 24px; position: relative; }
.venue {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px 5px 8px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: 13.5px; font-weight: 600; color: var(--ink-2);
}
.venue .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--glr); box-shadow: 0 0 0 4px var(--glr-soft); }
h1.title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(34px, 5.6vw, 62px); line-height: 1.06; letter-spacing: -0.02em;
  margin: 22px 0 22px; max-width: 16ch;
}
h1.title em { font-style: italic; color: var(--glr); }
.authors { font-size: 17.5px; line-height: 1.9; }
.authors .author { white-space: nowrap; font-weight: 500; }
.authors .author a { text-decoration: none; border-bottom: 1px solid var(--line-2); }
.authors .author a:hover { border-bottom-color: currentColor; }
.authors sup { color: var(--muted); font-weight: 500; font-size: 0.7em; margin-left: 1px; }
.authors .sep { color: var(--line-2); margin: 0 8px; }
.affils { color: var(--muted); font-size: 14.5px; margin-top: 4px; }
.affils span { margin-right: 16px; white-space: nowrap; }
.affils .note { display: block; margin-top: 2px; font-size: 13.5px; }

.buttons { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 11px;
  font-size: 15px; font-weight: 600; text-decoration: none;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  transition: transform .15s ease, border-color .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-1px); border-color: var(--line-2); box-shadow: var(--shadow); }
.btn svg { width: 17px; height: 17px; flex: none; }
.btn.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn.disabled { opacity: .55; pointer-events: none; }
.btn .soon { font-size: 11.5px; font-weight: 600; color: var(--muted); padding: 1px 6px; border-radius: 5px; background: var(--surface-2); }

.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero-grid > *, .two-col > *, .abstract-grid > * { min-width: 0; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; gap: 32px; } }

/* Segmented control */
.seg {
  display: inline-flex; padding: 3px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--line);
  flex-wrap: wrap; gap: 2px;
}
.seg button {
  font: inherit; font-size: 13.5px; font-weight: 600; color: var(--muted);
  border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; cursor: pointer; min-height: 32px;
}
.seg button:hover { color: var(--ink); }
.seg button.on { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.08); }

/* Hero: animated embedding-space view (paper Figure 1) */
.geo-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px;
  box-shadow: var(--shadow); padding: 14px 14px 12px; position: relative;
}
.geo-card svg { width: 100%; height: auto; display: block; }
.geo-head { display: flex; gap: 10px; align-items: flex-start; }
.geo-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; flex: 1; min-width: 0; }
.geo-steps button {
  font: inherit; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 6px 6px 4px; border-radius: 8px; color: var(--muted); min-width: 0;
}
.geo-steps button:hover { background: var(--surface-2); color: var(--ink); }
.geo-steps button[aria-selected="true"] { color: var(--ink); }
.gs-t { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; line-height: 1.25; }
.gs-t b {
  flex: none; width: 20px; height: 20px; border-radius: 6px; display: grid; place-items: center;
  font: 700 11.5px var(--mono); background: var(--surface-2); color: var(--ink-2);
}
.geo-steps button[aria-selected="true"] .gs-t b { background: var(--glr); color: #fff; }
.gs-bar { display: block; height: 3px; border-radius: 2px; background: var(--surface-2); overflow: hidden; margin-top: 8px; }
.gs-bar i { display: block; height: 100%; width: 0; background: var(--glr); }
.geo-play { flex: none; width: 32px; height: 32px; margin-top: 2px; }
.geo-play svg { width: 12px; height: 12px; }
.geo-caption { font-size: 14px; color: var(--muted); margin: 8px 4px 2px; min-height: 4.6em; }
.geo-legend { display: flex; gap: 4px 14px; line-height: 1.5; flex-wrap: wrap; font-size: 12.5px; color: var(--muted); margin: 2px 4px 0; }
.geo-legend i { display: inline-block; vertical-align: middle; margin-right: 6px; }
.lg-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--embed); }
.lg-ring { width: 12px; height: 12px; border-radius: 50%; border: 1.5px dashed var(--embed-ring); }
.lg-line { width: 18px; height: 2px; background: var(--ink); }
.lg-line.red { background: var(--glr); }
@media (max-width: 480px) {
  .gs-t { flex-direction: column; align-items: flex-start; gap: 4px; font-size: 12.5px; }
  .geo-caption { min-height: 6.2em; }
}

.geo-svg .nbhd { fill: none; stroke: var(--embed-ring); stroke-width: 2.4; stroke-dasharray: 8 7; opacity: .8; }
.geo-svg .tok { fill: var(--embed); }
.geo-svg .seg-ink { stroke: var(--ink); stroke-width: 3.4; fill: none; stroke-linecap: round; }
.geo-svg .seg-red { stroke: var(--glr); stroke-width: 3.4; fill: none; stroke-linecap: round; }
.geo-svg .ghost { opacity: .16; }
.geo-svg .draw { transition: stroke-dashoffset .55s cubic-bezier(.4,.1,.3,1), opacity .3s; }
.geo-svg .lbl { font: 600 22px var(--sans); fill: var(--muted); }
.geo-svg .lbl-red { fill: var(--glr); }

/* ---------- Sections ---------- */
section { padding: 72px 0; }
section + section { border-top: 1px solid var(--line); }
.eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase;
  color: var(--glr); margin: 0 0 10px;
}
h2 {
  font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 18px;
}
h3 { font-size: 20px; line-height: 1.3; margin: 0 0 8px; letter-spacing: -0.01em; }
h4 { font-size: 16px; margin: 0 0 6px; }
.lead { font-size: 19px; color: var(--ink-2); }
p { margin: 0 0 14px; }
.muted { color: var(--muted); }
.small { font-size: 14.5px; }

/* TL;DR */
.tldr {
  margin-top: 40px; padding: 22px 26px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow);
  display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start;
}
.tldr-tag { font-size: 12px; font-weight: 800; letter-spacing: .08em; padding: 4px 9px; border-radius: 7px; background: var(--glr-soft); color: var(--glr); margin-top: 3px; }
.tldr p { margin: 0; font-size: 17.5px; }
@media (max-width: 560px) { .tldr { grid-template-columns: 1fr; padding: 18px; gap: 10px; } .tldr-tag { justify-self: start; } }

/* Stat tiles */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 18px; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .stats { grid-template-columns: 1fr; } }
.stat {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 18px 16px; position: relative; overflow: hidden;
}
.stat::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--glr); opacity: .9; }
.stat .v { font-size: 38px; font-weight: 700; letter-spacing: -0.03em; line-height: 1.05; }
.stat .v small { font-size: 20px; font-weight: 600; margin-left: 2px; color: var(--ink-2); }
.stat .l { font-size: 14.5px; font-weight: 600; margin-top: 6px; }
.stat .d { font-size: 13px; color: var(--muted); margin-top: 3px; line-height: 1.45; }

/* Adoption strip: what it takes to use GLR (lavender, the paper's embedding color) */
.adopt {
  margin-top: 14px; padding: 22px 26px; border-radius: var(--radius);
  background: color-mix(in srgb, var(--embed) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--embed) 32%, var(--line));
  box-shadow: var(--shadow);
  display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px;
}
.adopt-head {
  grid-column: 1 / -1;
  padding-bottom: 16px; margin-bottom: 18px;
  border-bottom: 1px solid color-mix(in srgb, var(--embed) 30%, var(--line));
}
.adopt-kicker {
  font-size: 13.5px; font-weight: 700; letter-spacing: .01em;
  color: var(--embed-ink); margin: 0 0 4px;
}
.adopt-head h3 {
  font-family: var(--serif); font-weight: 500; font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.2; letter-spacing: -0.015em; margin: 0;
}
.adopt-head h3 em { font-style: italic; color: var(--embed-ink); white-space: nowrap; }
.adopt-label {
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 10px;
}
.adopt-list { list-style: none; margin: 0; padding: 0; font-size: 15px; font-weight: 500; }
.adopt-list li { position: relative; padding-left: 30px; margin: 0 0 9px; line-height: 1.45; }
.adopt-list li:last-child { margin-bottom: 0; }
.adopt-list li span { color: var(--muted); font-weight: 400; }
.adopt-list li::before {
  position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center; font-size: 11.5px; font-weight: 800; line-height: 1;
}
.adopt-list.yes li::before { content: "✓"; color: var(--good); background: color-mix(in srgb, var(--good) 15%, transparent); }
.adopt-list.no li::before { content: "✕"; color: var(--glr); background: var(--glr-soft); }
.adopt-note {
  grid-column: 1 / -1; font-size: 13px; color: var(--muted); margin: 18px 0 0; padding-top: 12px;
  border-top: 1px dashed color-mix(in srgb, var(--embed) 30%, var(--line));
}
@media (max-width: 720px) {
  .adopt { grid-template-columns: 1fr; padding: 18px; }
  .adopt-col + .adopt-col { margin-top: 18px; }
}

/* Abstract */
.abstract-grid { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }
@media (max-width: 960px) { .abstract-grid { grid-template-columns: 1fr; gap: 28px; } }
.abstract p { font-size: 17.5px; color: var(--ink-2); }
.abstract .hl { background: linear-gradient(transparent 62%, var(--glr-soft) 62%); color: var(--ink); }

/* Step race */
.race {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.race-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.race-head h4 { margin: 0; font-size: 15px; }
.race select, .ctl select {
  font: inherit; font-size: 13.5px; font-weight: 600; color: var(--ink);
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; padding: 5px 8px; min-height: 32px;
}
.lane { margin: 14px 0 4px; }
.lane-top { display: flex; justify-content: space-between; font-size: 13.5px; margin-bottom: 6px; gap: 8px; }
.lane-top b { font-weight: 600; }
.lane-top .cnt { font-family: var(--mono); font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.track { height: 14px; border-radius: 7px; background: var(--surface-2); position: relative; overflow: hidden; }
.fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; border-radius: 7px; }
.fill.cot { background: var(--cot); }
.fill.glr { background: var(--glr); }
.fill.lat { background: var(--latent); z-index: 1; border-radius: 7px 0 0 7px; }
.race-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; gap: 10px; flex-wrap: wrap; }
.race-foot .note { font-size: 12.5px; color: var(--muted); }
.link-btn {
  font: inherit; font-size: 13.5px; font-weight: 600; color: var(--ink);
  background: none; border: 1px solid var(--line); border-radius: 8px; padding: 5px 10px; cursor: pointer; min-height: 32px;
}
.link-btn:hover { border-color: var(--line-2); background: var(--surface-2); }
.race .big { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; margin-top: 12px; }
.race .big span { color: var(--muted); font-size: 14px; font-weight: 500; letter-spacing: 0; margin-left: 6px; }

/* ---------- Method ---------- */
.steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 28px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 16px; position: relative; min-width: 0;
}
.step .n {
  width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  font-size: 13px; font-weight: 700; background: var(--surface-2); color: var(--ink-2); margin-bottom: 12px;
}
.step p { font-size: 15.5px; color: var(--ink-2); }
.eq { overflow-x: auto; overflow-y: hidden; padding: 6px 0 4px; margin: 4px 0 10px; }
.eq .katex-display { margin: 0.2em 0; }
.eq .katex { font-size: 1.08em; }

figure { margin: 0; }
.fig {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.fig img { width: 100%; height: auto; margin: 0 auto; }
figcaption { font-size: 14.5px; color: var(--muted); margin-top: 12px; line-height: 1.55; }
figcaption b { color: var(--ink-2); }
.fig-block { margin-top: 32px; }
.zoomable { cursor: zoom-in; }

/* ---------- Tabs ---------- */
.tabbar { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin: 28px 0 0; }
.tabbar button {
  font: inherit; font-size: 15px; font-weight: 600; color: var(--muted); background: none; border: 0;
  padding: 10px 14px 12px; cursor: pointer; position: relative; min-height: 44px;
}
.tabbar button:hover { color: var(--ink); }
.tabbar button[aria-selected="true"] { color: var(--ink); }
.tabbar button[aria-selected="true"]::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: -1px; height: 2px; background: var(--glr); border-radius: 2px;
}
.panel { padding-top: 28px; }
.panel[hidden] { display: none; }

.bench-tabs { margin-bottom: 18px; }

/* ---------- Charts ---------- */
.chart-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 20px 14px; position: relative; min-width: 0;
}
.chart-card h4 { font-size: 15px; margin-bottom: 2px; }
.chart-card .sub { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 820px) { .chart-grid { grid-template-columns: 1fr; } }
.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart .grid line { stroke: var(--line); stroke-width: 1; }
.chart .axis text, .chart .tick { font: 500 12px var(--sans); fill: var(--muted); font-variant-numeric: tabular-nums; }
.chart .axis-title { font: 600 12px var(--sans); fill: var(--muted); }
.chart .val { font: 600 12px var(--sans); fill: var(--ink-2); font-variant-numeric: tabular-nums; }
.chart .val.strong { fill: var(--ink); font-weight: 700; }
.chart .bar-cot { fill: var(--cot); }
.chart .bar-glr { fill: var(--glr); }
.chart .hit { fill: transparent; cursor: default; }
.chart .hit:hover + .hl-band, .chart .band-hover { fill: var(--surface-2); }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--ink-2); margin: 4px 0 6px; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.legend i.cot { background: var(--cot); }
.legend i.glr { background: var(--glr); }
.legend i.lat { background: var(--latent); }
.ctl { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.ctl label { font-size: 13.5px; color: var(--muted); font-weight: 600; }

.tip {
  position: fixed; z-index: 100; pointer-events: none;
  background: var(--ink); color: var(--bg); font-size: 12.5px; line-height: 1.45;
  padding: 8px 10px; border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,.18);
  opacity: 0; transform: translateY(4px); transition: opacity .12s, transform .12s; max-width: 260px;
}
.tip.on { opacity: 1; transform: none; }
.tip b { font-weight: 700; }
.tip .k { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 6px; vertical-align: 0; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; font-variant-numeric: tabular-nums; }
th, td { padding: 10px 14px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; }
thead th { font-size: 12.5px; font-weight: 700; color: var(--muted); text-transform: none; background: var(--surface-2); vertical-align: bottom; }
thead tr.group th { text-align: center; border-bottom: 1px solid var(--line); }
thead tr.group th:first-child { text-align: left; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--surface-2) 60%, transparent); }
tr.ours td { background: var(--glr-soft); }
tr.ours td:first-child { font-weight: 700; }
tr.ours:hover td { background: color-mix(in srgb, var(--glr) 16%, transparent); }
tr.sep td { border-top: 2px solid var(--line-2); }
td.best { font-weight: 700; color: var(--ink); }
td .ci { color: var(--muted); font-size: 12.5px; margin-left: 4px; }
td.neg { color: var(--glr); font-weight: 600; }
.tcap { font-size: 13.5px; color: var(--muted); margin-top: 10px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: 24px; } }
.callout {
  border-left: 3px solid var(--glr); background: var(--surface); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px; font-size: 15.5px; color: var(--ink-2); margin: 18px 0;
}
.callout b { color: var(--ink); }

/* ---------- Latency ---------- */
.speed-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 18px; }
@media (max-width: 720px) { .speed-tiles { grid-template-columns: 1fr; } }

/* ---------- Example ---------- */
.chat {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.chat-head {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--surface-2);
}
.chat-head .t { font-size: 14px; font-weight: 700; }
.chat-body { padding: 18px 20px 20px; font-size: 15px; }
.role { font-family: var(--mono); font-size: 12.5px; font-weight: 700; color: var(--muted); text-transform: lowercase; margin-bottom: 4px; }
.msg { margin-bottom: 16px; }
.msg.user .bubble { background: var(--surface-2); border-radius: 12px; padding: 12px 14px; }
.stok { font-family: var(--mono); font-size: 13px; color: var(--token); font-weight: 600; }
.think {
  margin: 6px 0 12px; padding: 12px 14px; border-radius: 12px;
  border: 1px dashed var(--line-2);
}
.chips { display: flex; flex-wrap: wrap; gap: 3px; margin: 8px 0; align-items: center; }
.chip { width: 11px; height: 11px; border-radius: 3px; background: var(--latent); opacity: 0; transform: scale(.4); transition: opacity .15s, transform .15s; }
.chip.on { opacity: 1; transform: none; }
.chips .chip-label { font-family: var(--mono); font-size: 12.5px; color: var(--latent); font-weight: 700; margin-left: 8px; }
.think-text { font-family: var(--mono); font-size: 14px; }
.answer { line-height: 1.75; }
.answer p { margin: 0 0 8px; }
.fadein { animation: fadein .5s ease both; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.boxed { border: 1.5px solid var(--good); border-radius: 6px; padding: 0 6px; font-weight: 700; }

/* ---------- Analysis ---------- */
.fig-inline { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }

/* ---------- FAQ ---------- */
details {
  border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius-sm);
  padding: 0 18px; margin-bottom: 10px;
}
details[open] { padding-bottom: 14px; }
summary {
  cursor: pointer; list-style: none; padding: 15px 28px 15px 0; font-weight: 600; font-size: 16px; position: relative;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: ""; position: absolute; right: 4px; top: 50%; width: 9px; height: 9px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); transition: transform .2s;
}
details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
details p { font-size: 15.5px; color: var(--ink-2); }

/* ---------- BibTeX ---------- */
.bib {
  position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden;
}
.bib pre {
  margin: 0; padding: 20px 22px; overflow-x: auto; font-family: var(--mono); font-size: 13.5px; line-height: 1.7; color: var(--ink-2);
}
.bib .copy { position: absolute; top: 12px; right: 12px; }
.bib .k { color: var(--glr); }
.bib .f { color: var(--token); }

/* ---------- Footer ---------- */
footer { padding: 40px 0 56px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(10, 12, 16, .82);
  display: none; align-items: center; justify-content: center; padding: 24px; cursor: zoom-out;
}
.lightbox.on { display: flex; }
.lightbox img { max-width: min(1400px, 100%); max-height: 100%; background: #fff; border-radius: 10px; padding: 12px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .geo-svg .draw, .chip, .fill { transition: none !important; }
}

@media (max-width: 640px) {
  .affils span { display: block; margin-right: 0; }
  .authors .sep { margin: 0 4px; }
}