:root {
  color-scheme: light;
  --bg: #f5f4ef;
  --bg-card: #eeece4;
  --bg-raised: #fbfaf7;
  --ink: #111110;
  --ink-2: #4a4945;
  --muted: #6b6a65;
  --faint: #898781;
  --rule: #d8d4c7;
  --hair: #e8e5db;
  --card-border: #e0d9c3;
  --accent: #6a4f94;
  --gold: #e2b21f;
  --font-serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --font-sans: "Source Sans 3", system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --col: 1040px;
  --radius: 10px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 24px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
code { font-family: var(--font-mono); }
::selection { background: rgba(251, 212, 91, .55); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 50;
  background: var(--ink); color: #fff; padding: 8px 12px; border-radius: 6px;
  font-family: var(--font-mono); font-size: 13px; text-decoration: none;
}
.skip-link:focus { top: 12px; }
.page { padding: 16px; }
@media (min-width: 768px) { .page { padding: 40px 48px; } }
.col { max-width: var(--col); margin-inline: auto; }

.site-header {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 12px 24px; margin-bottom: 56px;
}
@media (min-width: 768px) { .site-header { margin-bottom: 80px; } }
.brand {
  font-family: var(--font-serif); font-size: 30px; line-height: 1; letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none;
}
.brand.small { font-size: 20px; }
.site-nav { display: flex; flex-wrap: wrap; gap: 6px 18px; font-family: var(--font-mono); font-size: 14px; }
.site-nav a {
  color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px;
  text-underline-offset: 8px; text-decoration-color: rgba(17, 17, 16, .45);
}
.site-nav a:hover { text-decoration-thickness: 2px; text-decoration-color: var(--ink); }

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
}
h1 {
  font-family: var(--font-serif); font-weight: 400;
  font-size: clamp(38px, 6vw, 66px); line-height: 1.02; letter-spacing: -0.018em;
  margin: 0 0 20px; max-width: 940px; text-wrap: balance;
}
.authors, .affiliations {
  margin: 0;
  color: var(--ink-2);
  font-size: 18px;
}
.authors { font-weight: 700; }
.authors sup, .affiliations sup { font-size: .68em; line-height: 0; }
.affiliations { margin-top: 4px; color: var(--muted); max-width: 980px; }
.links { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 40px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px; padding: 9px 16px 9px 13px;
  font-family: var(--font-mono); font-size: 14px; line-height: 1; color: var(--ink); text-decoration: none;
  background: var(--bg-raised); border: 1px solid var(--ink); box-shadow: 3px 3px 0 var(--ink);
  transition: transform .12s ease, box-shadow .12s ease, background-color .12s ease;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { background: #fff; transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.muted-btn { color: var(--muted); border-color: var(--rule); box-shadow: 3px 3px 0 var(--rule); }

.hero-figure { margin-top: 0; }
.paper-fig {
  margin-bottom: 36px;
}
.zoomable {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-raised);
  cursor: zoom-in;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);
}
.zoomable img { width: 100%; height: auto; }

.tldr p {
  max-width: 850px; margin: 0 0 40px; font-size: 21px; line-height: 1.55; color: var(--ink);
}
.tldr strong { font-weight: 700; }
@media (max-width: 600px) { .tldr p { font-size: 18px; } }

.kpis {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--rule);
}
.kpi { padding: 18px 18px 20px; }
.kpi:first-child { padding-left: 0; }
.kpi + .kpi { border-left: 1px solid var(--rule); }
.kpi-label { font-size: 14px; color: var(--ink-2); }
.kpi-value { font-size: 44px; font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; margin: 8px 0 6px; }
.kpi-note { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }
@media (max-width: 860px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .kpi:nth-child(3) { border-left: 0; padding-left: 0; }
  .kpi:nth-child(n + 3) { border-top: 1px solid var(--rule); }
  .kpi-value { font-size: 36px; }
}
@media (max-width: 460px) {
  .kpis { grid-template-columns: 1fr; }
  .kpi, .kpi:first-child, .kpi:nth-child(3) { padding-left: 0; border-left: 0; }
  .kpi + .kpi { border-top: 1px solid var(--rule); border-left: 0; }
}

.section {
  position: relative; font-family: var(--font-serif); font-weight: 400; font-size: clamp(28px, 3.4vw, 36px);
  line-height: 1.15; letter-spacing: -0.01em; margin: 96px 0 8px; scroll-margin-top: 24px;
}
.sec-head + .paper-fig { margin-top: 24px; }
.sec-sub { font-size: 17px; line-height: 1.5; color: var(--ink-2); margin: 0 0 24px; max-width: 720px; }
.anchor {
  position: absolute; left: -26px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 18px; color: var(--faint);
  text-decoration: none; opacity: 0; transition: opacity .15s;
}
.section:hover .anchor, .anchor:focus-visible { opacity: 1; }
@media (max-width: 1120px) { .anchor { display: none; } }

.stage-cards, .result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}
.stage-card, .result-card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px;
}
.stage-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.stage-num, .stage-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}
.stage-tag {
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 4px 8px;
  background: var(--bg-raised);
}
.tag-hl { border-color: var(--gold); color: var(--ink); }
.stage-card h3, .result-card h3 { margin: 0 0 8px; font-size: 20px; line-height: 1.2; }
.stage-card p, .result-card p { margin: 0; color: var(--ink-2); }
@media (max-width: 820px) {
  .stage-cards, .result-grid { grid-template-columns: 1fr; }
}

.experiment-stack {
  display: grid;
  gap: 44px;
}
.experiment-block {
  display: grid;
  gap: 18px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}
.experiment-copy {
  max-width: 820px;
}
.sec-head-like h2 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 36px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.sec-head-like p {
  margin: 0;
  color: var(--ink-2);
  font-size: 17px;
  line-height: 1.55;
}
.experiment-fig {
  margin: 0;
}
.split-figs {
  display: grid;
  gap: 18px;
  align-items: start;
}
.tall-fig .zoomable img {
  max-height: 760px;
  object-fit: contain;
  background: #fff;
}

.bibtex {
  position: relative;
  background: #1b1b1a;
  color: #f7f4ea;
  border-radius: var(--radius);
  padding: 18px;
  overflow: hidden;
}
.bibtex pre {
  margin: 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
}
.copy {
  position: absolute;
  top: 12px;
  right: 12px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.08);
  color: #fff;
  border-radius: 999px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
}

#lightbox {
  width: min(1180px, calc(100vw - 32px));
  border: 0;
  border-radius: 14px;
  padding: 0;
  background: var(--bg-raised);
  color: var(--ink);
  box-shadow: 0 30px 80px rgba(0,0,0,.35);
}
#lightbox::backdrop { background: rgba(17,17,16,.72); }
.lb-img { width: 100%; height: auto; max-height: 82vh; object-fit: contain; background: #fff; }
.lb-caption { margin: 0; padding: 12px 16px 16px; color: var(--ink-2); font-size: 14px; }
.lb-close {
  position: absolute;
  right: 12px;
  top: 12px;
  border: 1px solid rgba(17,17,16,.2);
  background: rgba(245,244,239,.94);
  border-radius: 999px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
}
@media (max-width: 600px) {
  .page { padding: 16px; }
  .site-header { margin-bottom: 44px; }
  .links { margin-bottom: 28px; }
  .zoomable { border-radius: 10px; }
}