/* ==========================================================
   AutoScientists -- option 4 hybrid
   Warm cream palette, serif-driven, with a transplanted
   architecture diagram + live forum panel (from option2)
   restyled against the light background.
   ========================================================== */

:root {
  --cream: #f6f6f8;
  --cream-2: #eeeeef;
  --cream-3: #e5e5e8;
  --paper: #ffffff;
  --ink: #1a1825;
  --ink-soft: #2d2a3e;
  --ink-mute: #5c5878;
  --ink-dim: #8885a0;
  --rule: #e0e0e8;
  --rule-soft: #ebebf0;
  --sage: #4a51c0;          /* purple primary accent */
  --sage-deep: #3d3666;
  --sage-soft: #c8c8f0;
  --orange: #6D74FF;        /* deep purple accent */
  --orange-soft: #d8daff;
  --sans: 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono-code: 'JetBrains Mono', ui-monospace, monospace;
  /* Simplified: --serif and --mono both alias to the sans stack so the
     page renders in a single typeface. Only the BibTeX <pre> uses real mono. */
  --serif: var(--sans);
  --mono: var(--sans);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--sage-deep); text-decoration: none; }
a:hover { color: var(--orange); }
code, pre { font-family: var(--mono-code); font-size: 0.9em; }
/* Simplification override: neutralize the many italic/colored-em accents
   used throughout so emphasis blends with surrounding text. */
em { font-style: normal; color: inherit; font-weight: inherit; }
.title-italic,
.stat-label,
.stat-arrow,
.section-title,
.wordmark-copy,
.hero-subtitle,
.section-eyebrow,
.eyebrow,
.pullquote,
.case-eyebrow,
.case-title { font-style: normal !important; }
.stat-arrow { color: var(--ink-mute) !important; }
code {
  background: var(--cream-2);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--sage-deep);
}

/* ============ STICKY PILL NAV ============ */
/* ============ LEFT SIDE NAV ============ */
.side-nav {
  position: fixed;
  top: 50%;
  left: 28px;
  transform: translateY(-50%);
  z-index: 50;
  pointer-events: auto;
}
.side-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 1px solid var(--rule);
}
.side-nav a {
  display: block;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
  padding: 6px 0 6px 14px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-weight: 400;
  transition: color 160ms ease, border-color 160ms ease, font-weight 160ms ease;
}
.side-nav a:hover { color: var(--ink); }
.side-nav a.is-active {
  color: var(--ink);
  font-weight: 700;
  border-left-color: var(--ink);
}
@media (max-width: 1100px) {
  .side-nav { display: none; }
}

/* legacy nav rules kept harmless (no nav-wrap in DOM) */
.nav-wrap, .nav-pill { display: none; }
.wordmark { display: inline-flex; align-items: center; gap: 12px; }
.wordmark-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}
.wordmark-copy {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.wordmark-copy em { font-style: italic; color: var(--sage-deep); font-weight: 500; }
.nav-links {
  display: flex;
  gap: 22px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-links a { color: var(--ink-mute); transition: color 120ms ease; }
.nav-links a:hover { color: var(--sage-deep); }

@media (max-width: 760px) {
  .nav-pill { border-radius: 22px; flex-direction: column; align-items: flex-start; gap: 12px; }
  .nav-links { flex-wrap: wrap; gap: 14px; }
}

/* ============ SECTIONS ============ */
section, footer.cite-footer {
  padding: 90px 48px;
  border-bottom: 1px solid var(--rule);
}
.section-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 auto 18px;
  max-width: 1200px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow-num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 22px;
  color: var(--orange);
  letter-spacing: 0;
  text-transform: none;
}
.section-title {
  max-width: 1200px;
  margin: 0 auto 44px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(30px, 4.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.section-title em { font-style: italic; color: var(--sage-deep); font-weight: 400; }

/* ============ HERO ============ */
.hero {
  padding: 56px 48px 80px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.hero-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 48px;
  align-items: center;
}
/* New centered stack layout (title -> authors -> buttons -> abstract -> figure) */
.hero-stack {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero-stack .hero-title,
.hero-stack .hero-sub,
.hero-stack .hero-byline,
.hero-stack .hero-lede,
.hero-stack .hero-abstract-label {
  text-align: center;
  max-width: 820px;
}
.hero-stack .hero-byline { border-bottom: none; padding-bottom: 0; margin-bottom: 18px; }
.hero-stack .hero-chips { justify-content: center; margin-bottom: 36px; }
.hero-stack .hero-lede {
  max-width: 780px;
  text-align: left;
  font-size: 17px;
  margin: 0 0 8px;
}
.hero-abstract-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 8px 0 12px;
}
.hero-figure {
  margin: 32px auto 0;
  width: 100%;
  max-width: 980px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.autoscientists-viz {
  text-align: center;
  background: var(--paper);
}
.autoscientists-viz .section-eyebrow,
.autoscientists-viz .section-title {
  text-align: center;
  justify-content: center;
}
.hero-figure svg { width: 100%; height: auto; display: block; }
.hero-figure figcaption {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--ink-mute);
  line-height: 1.5;
  text-align: center;
  max-width: 720px;
}
.hero-figure .figcap-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-right: 4px;
}
.kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 28px;
}
.kicker-rule { display: inline-block; width: 48px; height: 1px; background: var(--ink); }
.hero-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(44px, 7vw, 96px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  margin: 0 0 18px;
  color: var(--ink);
}
.title-italic {
  font-style: italic;
  font-weight: 500;
  color: var(--sage-deep);
}
.hero-sub {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(19px, 2.2vw, 28px);
  line-height: 1.3;
  color: var(--ink-soft);
  margin: 0 0 22px;
  max-width: 640px;
}
.hero-byline {
  font-size: 14px;
  color: var(--ink);
  margin: 0 0 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
  max-width: 640px;
  line-height: 1.5;
}
.hero-byline sup { color: var(--sage-deep); font-weight: 600; }
.hero-byline-foot {
  display: block;
  font-size: 12px;
  color: var(--ink-mute);
  margin-top: 4px;
}
.hero-lede {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 32px;
  max-width: 640px;
}
.hero-lede strong { color: var(--sage-deep); font-weight: 600; }
.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 13.5px;
  padding: 9px 22px;
  border-radius: 6px;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.chip:hover { transform: translateY(-2px); background: var(--ink); color: var(--cream); }

.hero-right svg { width: 100%; height: auto; display: block; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-right { max-width: 540px; }
}

/* ============ STATS ============ */
.glance { background: var(--paper); }
.stat-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.stat {
  padding: 32px 26px;
  border-right: 1px solid var(--rule);
  background: var(--paper);
}
.stat:last-child { border-right: none; }
.stat-num {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(32px, 3.8vw, 50px);
  line-height: 1;
  color: var(--sage-deep);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  font-variant-numeric: tabular-nums;
}
.stat-arrow {
  font-style: italic;
  color: var(--orange);
  font-size: 0.65em;
  padding: 0 3px;
}
.stat-label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 8px;
}
.stat-delta {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}

/* ============ METHOD ============ */
.method-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: stretch;
}
.method-fig-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}
/* New single-column stack: text -> agent types -> architecture figure -> forum */
.method-stack {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.method-stack .method-text > * { margin: 0 0 18px; }
.method-stack .method-text > *:last-child { margin-bottom: 0; }
.method-stack .method-fig { margin: 0; }
.method-stack .forum-card--inline { margin-top: 0; }
/* override the legacy role-row margin so it sits close to its subhead */
.method-stack .role-row { margin-top: 0; }

/* Center the Method section title */
.method { background: var(--paper); }
.method .section-title { text-align: center; max-width: 880px; margin-left: auto; margin-right: auto; }

/* Consistent subheading style used for "Types of Agents", "Shared State", "Forum" */
.method-subhead {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 6px 0 -8px;     /* negative bottom to tighten gap to following box */
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}
/* compact forum styled to live under the architecture figure */
.forum-card--inline { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.forum-card--inline .forum-head { padding: 8px 12px; }
.forum-card--inline .forum-title { font-size: 11px; }
.forum-card--inline .forum-body {
  padding: 8px 12px; font-size: 11px; line-height: 1.45;
  /* fixed height with scroll instead of growing */
  height: 280px; max-height: 280px; overflow-y: auto;
  flex: none;
}
.forum-source { color: var(--ink-mute); text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 2px; }
.forum-source:hover { color: var(--sage-deep); text-decoration-color: var(--sage-deep); }
.forum-card--inline .forum-item { padding: 5px 0; gap: 8px; }
.forum-card--inline .forum-item .ts  { min-width: 74px; }
.forum-card--inline .forum-item .who { min-width: 36px; }
.forum-card--inline .forum-foot { padding: 6px 10px; gap: 6px; flex-wrap: wrap; }
.forum-card--inline .pill { font-size: 9.5px; padding: 1px 6px; }
.forum-card--inline .ghost-btn { font-size: 10px; padding: 3px 8px; }
.method-text p {
  margin: 0 0 20px;
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.method-text em { color: var(--sage-deep); font-style: italic; }
.method-text strong { color: var(--ink); font-weight: 600; }

.pullquote {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.35;
  color: var(--sage-deep);
  border-left: none;
  padding: 4px 0;
  margin: 28px 0;
}
.pullquote em { font-style: italic; color: var(--orange); font-weight: 500; }

.role-row-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 26px 0 10px;
}
.role-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}
.role {
  font-size: 14px;
  color: var(--ink-soft);
  border: 1px dashed var(--rule);
  padding: 12px 14px;
  border-radius: 3px;
  background: var(--paper);
  line-height: 1.55;
}
.role-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  margin-right: 8px;
  border: 1px solid;
}
.role-tag.role-analyst {
  color: #b36a00;
  border-color: #EB9009;
  background: #fef3e2;
}
.role-tag.role-exp {
  color: var(--orange);
  border-color: var(--orange);
  background: var(--orange-soft);
}

.method-fig { margin: 0; }
.method-fig-frame {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 8px;
}
.method-fig svg { width: 100%; height: auto; display: block; }
figcaption {
  margin-top: 14px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-mute);
}
.figcap-num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--orange);
  margin-right: 6px;
}

/* ============ FORUM ============ */
.forum-section { background: var(--cream-2); }
.forum-intro {
  max-width: 880px;
  margin: 0 auto 36px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.forum-card {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 18px 48px -32px rgba(26, 24, 37, 0.15);
  overflow: hidden;
}
.forum-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--cream);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.forum-title code { background: transparent; color: var(--sage-deep); padding: 0; }
.forum-right { display: flex; align-items: center; gap: 10px; }
.ghost-btn {
  background: transparent;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  padding: 4px 10px;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  transition: 0.15s;
}
.ghost-btn:hover { color: var(--sage-deep); border-color: var(--sage); }
.forum-body {
  height: 360px;
  overflow: hidden;
  padding: 8px 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
}
.forum-item {
  padding: 7px 0;
  border-bottom: 1px dashed var(--rule-soft);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  line-height: 1.5;
}
.forum-item .ts { color: var(--ink-dim); min-width: 64px; }
.forum-item .who { color: var(--sage-deep); min-width: 112px; font-weight: 500; }
.forum-item .body { color: var(--ink-soft); flex: 1; }
.forum-item .body b { color: var(--ink); font-weight: 600; }
.forum-item .body .num { color: var(--orange); font-weight: 500; }
.forum-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 18px;
  border-top: 1px solid var(--rule);
  background: var(--cream);
}
.legend-dot { display: inline-flex; }

/* pills (light palette) */
.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  border: 1px solid;
  white-space: nowrap;
}
.pill-run     { color: var(--sage-deep); border-color: var(--sage); background: var(--sage-soft); }
.pill-queued  { color: var(--ink-mute);  border-color: var(--rule); background: var(--cream-2); }
.pill-disc    { color: #5b4296;          border-color: #b6a8d8;     background: #ece5fa; }
.pill-keep    { color: #1a5b2c;          border-color: #4f9b66;     background: #d0e8d4; }
.pill-reject  { color: #8a2a2a;          border-color: #c46060;     background: #f1d0d0; }
/* legacy aliases (kept so any not-yet-rebuilt feed entry still renders) */
.pill-idle { color: var(--ink-mute);  border-color: var(--rule); background: var(--cream-2); }
.pill-stag { color: #8a5a14;          border-color: #d8a55e;     background: #f4e2c5; }
.pill-prom { color: #1a5b2c;          border-color: #4f9b66;     background: #d0e8d4; }
.pill-dead { color: #8a2a2a;          border-color: #c46060;     background: #f1d0d0; }

/* ============ RESULTS ============ */
.results { background: var(--paper); }
.results .section-title {
  text-align: center;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}
.results-stack {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.results-desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.results-desc strong { color: var(--sage-deep); font-weight: 600; }
.results-desc code { font-size: 0.88em; }
.chart-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
.results-fig {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.results-fig img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--paper);
}
.results-fig figcaption {
  font-size: 12px;
  color: var(--ink-mute);
  line-height: 1.4;
}
.chart-shell {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 12px;
}
.chart-shell svg { width: 100%; height: auto; display: block; }
.chart-shell--sm { padding: 8px; }

/* ============ ABLATIONS ============ */
.ablations { background: var(--paper); }
.ablations .section-title { text-align: center; max-width: 880px; margin-left: auto; margin-right: auto; }
.ablations-stack { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: column; gap: 36px; }
.ablation-components {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
  width: 100%;
}
.ablation-component {
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 18px 20px;
}
.ablation-component-name {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sage-deep);
  margin-bottom: 8px;
}
.ablation-component p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.ablation-lede {
  max-width: 880px;
  margin: 0 auto 40px;
  font-family: var(--serif);
  font-size: 18px;
  font-style: italic;
  line-height: 1.55;
  color: var(--ink-soft);
}
.table-wrap {
  max-width: 1200px;
  margin: 0 auto;
  overflow-x: auto;
}
.ablation-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.ablation-table th,
.ablation-table td {
  padding: 15px 18px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
  color: var(--ink);
}
.ablation-table th {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--ink);
  background: var(--cream);
}
.th-unit {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-mute);
  margin-top: 2px;
}
.th-config, .row-label {
  text-align: left !important;
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink);
}
.ablation-table tbody tr:first-child td {
  font-weight: 600;
}
.ablation-table tbody tr:first-child .row-label {
  color: var(--sage-deep);
  font-style: normal;
}
.ablation-table td[data-heat] {
  background-color: var(--heat-color, transparent);
}
.ablation-foot {
  max-width: 1200px;
  margin: 24px auto 0;
  font-size: 13px;
  color: var(--ink-mute);
  line-height: 1.55;
}

/* ============ FOOTER ============ */
.cite-footer {
  padding: 80px 48px 64px;
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--rule);
  border-bottom: none;
}
.cite-heading {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  color: var(--ink);
  text-align: center;
  margin: 0 auto 36px;
  letter-spacing: -0.01em;
}
.cite-footer .bib-block { max-width: 640px; margin: 0 auto; }
.bib-block { position: relative; }
.bib-label, .res-head {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 12px;
}
.bibtex {
  background: var(--cream);
  border: 1px solid var(--rule);
  padding: 22px 24px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  overflow-x: auto;
  margin: 0;
  border-radius: 3px;
}
.bibtex code { color: inherit; background: transparent; padding: 0; }
.copy-btn {
  position: absolute;
  top: 50px;
  right: 12px;
  background: transparent;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 12px;
  cursor: pointer;
  transition: 0.15s;
}
.copy-btn:hover { background: var(--ink-mute); color: var(--paper); }
.res-chips { display: flex; flex-direction: column; gap: 6px; }
.reschip {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--cream);
  padding: 9px 0;
  border-bottom: 1px solid #dcdcf0;
  transition: color 0.15s, padding-left 0.15s;
}
.reschip:hover { color: #5c5878; padding-left: 6px; }
.colophon {
  max-width: 1200px;
  margin: 56px auto 0;
  padding-top: 24px;
  border-top: 1px solid #dcdcf0;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #5c5878;
}

/* ============ TOOLTIP ============ */
.tooltip {
  position: fixed;
  pointer-events: none;
  background: var(--ink);
  color: var(--cream);
  padding: 7px 11px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  border-radius: 3px;
  opacity: 0;
  transform: translate(-50%, -130%);
  transition: opacity 0.12s;
  z-index: 200;
  white-space: nowrap;
}
.tooltip.show { opacity: 1; }

/* ============ SVG SHARED ============ */
svg text { font-family: var(--serif); fill: var(--ink-soft); font-variant-numeric: tabular-nums; }
svg .axis-line { stroke: var(--ink); stroke-width: 0.75; }
svg .grid-line { stroke: var(--rule-soft); stroke-width: 0.5; stroke-dasharray: 2,3; }
svg .axis-label { font-size: 11px; fill: var(--ink-mute); font-family: var(--sans); }
svg .axis-num { font-size: 10px; fill: var(--ink-mute); font-family: var(--mono); }
svg .chart-title { font-family: var(--mono); font-size: 10px; fill: var(--ink-mute); letter-spacing: 0.12em; text-transform: uppercase; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  section, footer.cite-footer { padding: 64px 24px; }
  .method-grid, .cite-grid { grid-template-columns: 1fr; gap: 36px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--rule); }
  .tabs { width: 100%; overflow-x: auto; }
  .colophon { flex-direction: column; gap: 8px; }
}
@media (max-width: 520px) {
  .stat-grid { grid-template-columns: 1fr; }
  .stat { border-right: none !important; border-bottom: 1px solid var(--rule); }
  .stat:last-child { border-bottom: none; }
}