:root {
  --fg: #1f2328;
  --fg-soft: #4b5563;
  --fg-muted: #6b7280;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-card: #fafbfc;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-soft: #eff5ff;
  --link: #1d4ed8;
  --max-w: 960px;
  --rad: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 4px 16px rgba(15, 23, 42, .04);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  line-height: 1.25;
  margin-top: 0;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 22px;
}

.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.topbar .inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0;
}
.topbar .home {
  color: var(--fg-soft);
  font-size: 14px;
}
.topbar .venue {
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: .02em;
}

.hero {
  padding: 56px 0 28px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(1.7rem, 3vw + 1rem, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.hero .authors {
  font-size: 1.05rem;
  color: var(--fg-soft);
  margin: 6px 0 4px;
}
.hero .authors a { color: var(--fg-soft); }
.hero .authors .author { white-space: nowrap; margin: 0 4px; }
.hero .authors sup { font-size: 0.75em; color: var(--fg-muted); }
.hero .affil {
  color: var(--fg-muted);
  font-size: .98rem;
  margin: 2px 0 4px;
}
.hero .equal {
  color: var(--fg-muted);
  font-size: .9rem;
  margin-bottom: 24px;
}

.links {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  margin-top: 18px;
}
.link-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--fg);
  color: #fff !important;
  font-size: .95rem; font-weight: 500;
  border: 1px solid var(--fg);
  transition: transform .08s ease, background .15s ease;
}
.link-btn:hover { background: #000; text-decoration: none; transform: translateY(-1px); }
.link-btn.ghost {
  background: transparent; color: var(--fg) !important; border-color: var(--border);
}
.link-btn.ghost:hover { background: var(--bg-soft); }
.link-btn svg { width: 16px; height: 16px; }

.teaser {
  margin: 28px 0 8px;
  text-align: center;
}
.teaser img {
  max-width: 100%;
  display: block;
  margin: 0 auto;
}
.teaser .caption {
  font-size: 0.92rem;
  color: var(--fg-muted);
  margin: 12px auto 0;
  max-width: 760px;
  text-align: left;
}

section {
  padding: 36px 0 8px;
}
section h2 {
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.005em;
}
section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 28px 0 12px;
}
section p { color: var(--fg); margin: 0 0 14px; }
section .lead { font-size: 1.04rem; color: var(--fg-soft); }

.figure {
  margin: 22px 0 8px;
  text-align: center;
}
.figure img {
  max-width: 100%;
  display: block;
  margin: 0 auto;
}
.figure figcaption {
  font-size: 0.92rem;
  color: var(--fg-muted);
  margin: 12px auto 0;
  text-align: left;
}
.figure figcaption b { color: var(--fg); }

.callout {
  background: var(--accent-soft);
  border: 1px solid #dbe7ff;
  border-radius: var(--rad);
  padding: 14px 18px;
  margin: 18px 0;
  color: var(--fg);
  font-size: 0.98rem;
}
.callout b { color: var(--accent); }

table.results {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 0.93rem;
}
table.results th, table.results td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
table.results th {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.01em;
}
table.results td.left, table.results th.left { text-align: left; }
table.results tr.group td { background: #fafbfc; font-weight: 600; color: var(--fg-soft); text-align: left; }
table.results tr.row-ours td { background: #f3f8ff; }
table.results .indent { padding-left: 28px; color: var(--fg-soft); }
.table-note { font-size: .85rem; color: var(--fg-muted); margin-top: 6px; }

.grid-2 {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
@media (max-width: 720px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.qual-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: start;
  margin: 18px 0 8px;
}
.qual-row .col { text-align: center; }
.qual-row img { width: 100%; border: 1px solid var(--border); border-radius: 8px; }
.qual-row .label {
  font-size: 0.85rem; font-weight: 600; color: var(--fg-soft);
  margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em;
}
.qual-prompt {
  font-size: 0.9rem;
  color: var(--fg-soft);
  margin: 6px 0 22px;
  padding-left: 12px;
  border-left: 3px solid var(--border);
}
@media (max-width: 640px) {
  .qual-row { grid-template-columns: 1fr; }
}

.bib {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: var(--rad);
  padding: 16px 18px;
  font-family: "JetBrains Mono", Menlo, Monaco, "Courier New", monospace;
  font-size: 0.86rem;
  line-height: 1.55;
  overflow-x: auto;
  white-space: pre;
  margin: 14px 0;
}

footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
  margin-top: 36px;
  color: var(--fg-muted);
  font-size: 0.88rem;
  text-align: center;
}
footer a { color: var(--fg-muted); }