:root {
  --bg: #0b100f;
  --surface: #101716;
  --surface-raised: #151e1c;
  --line: #26312e;
  --line-strong: #3a4945;
  --ink: #edf2ed;
  --muted: #a7b3ad;
  --faint: #7f8e87;
  --mint: #74d6af;
  --warm: #e0b879;
  --rose: #dc8d8d;
  --mono: "DM Mono", ui-monospace, monospace;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Inter", system-ui, sans-serif;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { color-scheme: dark; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); line-height: 1.5; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 100; transform: translateY(-180%); padding: .7rem 1rem; background: var(--mint); color: #07100d; font-weight: 600; }
.skip-link:focus { transform: none; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  padding: 0 max(1.25rem, calc((100vw - var(--max)) / 2));
  display: grid;
  grid-template-columns: minmax(18rem, 1fr) auto minmax(18rem, 1fr);
  align-items: center;
  gap: 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 16, 15, .96);
  backdrop-filter: blur(14px);
}
.identity { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; }
.identity > span:last-child { display: grid; }
.identity strong { font-family: var(--mono); font-size: .9rem; letter-spacing: .04em; }
.identity small { color: var(--faint); font-family: var(--mono); font-size: .69rem; }
.mark { width: 34px; height: 34px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: end; gap: 3px; padding: 6px; border: 1px solid var(--line-strong); }
.mark i { display: block; background: var(--mint); }
.mark i:nth-child(1) { height: 45%; }
.mark i:nth-child(2) { height: 78%; }
.mark i:nth-child(3) { height: 58%; }
.topbar nav { display: flex; gap: .1rem; }
.topbar nav a { min-height: 44px; display: grid; place-items: center; padding: 0 .7rem; color: var(--muted); font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }
.topbar nav a:hover, .topbar nav a:focus-visible { color: var(--ink); }
.technical-link { justify-self: end; color: var(--mint); font-family: var(--mono); font-size: .74rem; text-underline-offset: 4px; }

main { width: min(calc(100% - 2.5rem), var(--max)); margin: 0 auto; padding: 3rem 0 7rem; }
section { scroll-margin-top: 92px; }
.eyebrow { margin: 0; color: var(--mint); font-family: var(--mono); font-size: .69rem; letter-spacing: .11em; text-transform: uppercase; }
.hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .6fr); gap: clamp(2rem, 7vw, 7rem); align-items: end; padding: 2rem 0 3.4rem; }
h1 { max-width: 850px; margin: .55rem 0 1rem; font-family: var(--serif); font-size: clamp(3.2rem, 7vw, 6.4rem); font-weight: 400; letter-spacing: -.045em; line-height: .87; }
h1 em { color: var(--mint); font-weight: 400; }
.lede { max-width: 760px; margin: 0; color: var(--muted); font-size: clamp(.95rem, 1.5vw, 1.12rem); }
.boundary-card { padding: 1.3rem; border: 1px solid var(--line-strong); border-top: 3px solid var(--warm); background: var(--surface); }
.boundary-card > span { color: var(--warm); font-family: var(--mono); font-size: .65rem; letter-spacing: .08em; }
.boundary-card strong { display: block; margin: .45rem 0; font-family: var(--serif); font-size: 1.65rem; font-weight: 400; }
.boundary-card p { margin: 0; color: var(--muted); font-size: .8rem; }

.metric-rail { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric-rail article { min-width: 0; padding: 1.25rem; border-right: 1px solid var(--line); }
.metric-rail article:first-child { padding-left: 0; }
.metric-rail article:last-child { border-right: 0; }
.metric-rail span, .metric-rail small { display: block; color: var(--faint); font-family: var(--mono); font-size: .7rem; }
.metric-rail span { letter-spacing: .08em; }
.metric-rail strong { display: block; margin: .25rem 0 .1rem; font-family: var(--mono); font-size: 1.4rem; font-weight: 500; }

.evidence-banner { display: grid; grid-template-columns: minmax(16rem, .9fr) minmax(0, 1.1fr); gap: 3rem; align-items: center; margin: 1.25rem 0; padding: 1.5rem; border: 1px solid rgba(224,184,121,.45); background: linear-gradient(100deg, rgba(224,184,121,.08), transparent 68%); }
.evidence-banner h2 { margin: .25rem 0 0; font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.7rem); font-weight: 400; }
.evidence-banner > p { margin: 0; color: var(--muted); font-size: .86rem; }

.panel { min-width: 0; margin-top: 1.25rem; padding: 1.5rem; border: 1px solid var(--line); background: var(--surface); box-shadow: 0 18px 58px rgba(0,0,0,.14); }
.section-heading { display: flex; justify-content: space-between; gap: 1.5rem; align-items: flex-start; }
.section-heading h2, .references h2 { margin: .25rem 0 0; font-family: var(--serif); font-size: clamp(1.65rem, 2.6vw, 2.35rem); font-weight: 400; line-height: 1.05; }
.classification, .panel-note { flex: 0 0 auto; padding: .4rem .55rem; border: 1px solid var(--line-strong); color: var(--warm); font-family: var(--mono); font-size: .64rem; letter-spacing: .06em; }

.secondary-panel { border-top-color: var(--mint); }
.secondary-grid { display: grid; grid-template-columns: minmax(18rem, .75fr) minmax(0, 1.25fr); gap: 2rem; margin-top: 1.6rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.effect-display > span { color: var(--muted); font-size: .8rem; }
.effect-display > strong { display: block; margin: .2rem 0; color: var(--mint); font-family: var(--serif); font-size: clamp(3.3rem, 7vw, 5.8rem); font-weight: 400; line-height: 1; }
.effect-display > p { margin: 0; color: var(--muted); font-family: var(--mono); font-size: .78rem; }
.effect-display dl { display: grid; grid-template-columns: repeat(3, 1fr); margin: 1.3rem 0 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.effect-display dl div { padding: .75rem .6rem .75rem 0; }
.effect-display dl div + div { padding-left: .6rem; border-left: 1px solid var(--line); }
.effect-display dt { color: var(--faint); font-size: .68rem; }
.effect-display dd { margin: .2rem 0 0; font-family: var(--mono); font-size: .8rem; }
.finding-copy { padding: 1rem 0 0 1.5rem; border-left: 1px solid var(--line); }
.finding-copy h3, .robustness-heading h3 { margin: 0; font-size: .9rem; }
.finding-copy p { max-width: 680px; color: var(--muted); font-size: .84rem; }
.robustness-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--line-strong); }
.robustness-heading p { margin: .3rem 0 0; color: var(--muted); font-size: .76rem; }
.robustness-heading > span { color: var(--mint); font-family: var(--mono); font-size: .68rem; }
.robustness-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 1rem; border: 1px solid var(--line); background: var(--line); }
.robustness-grid article { min-width: 0; padding: .85rem; background: var(--surface-raised); }
.robustness-grid span, .scanner-grid span { display: block; color: var(--faint); font-size: .68rem; }
.robustness-grid strong, .scanner-grid strong { display: block; margin: .25rem 0; font-family: var(--mono); font-size: .9rem; font-weight: 500; }
.robustness-grid small, .scanner-grid small { color: var(--muted); font-family: var(--mono); font-size: .68rem; }
.scanner-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 1px; border: 1px solid var(--line); background: var(--line); }
.scanner-grid article { padding: .9rem; background: var(--surface-raised); }

.scroll-hint { display: none; margin: 1rem 0 -.65rem; color: var(--warm); font-family: var(--mono); font-size: .67rem; }
.table-scroll { margin-top: 1.4rem; overflow-x: auto; border-top: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: .76rem; }
th, td { padding: .8rem .6rem; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
th:first-child, td:first-child, th:nth-child(2), td:nth-child(2) { text-align: left; }
th { color: var(--faint); font-family: var(--mono); font-size: .66rem; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
td { color: var(--muted); font-family: var(--mono); }
td:last-child { color: var(--ink); }
.caption { margin: 1rem 0 0; color: var(--muted); font-size: .75rem; }

.workspace-grid, .methods-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.control-readout { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 1.3rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.control-readout div { padding: 1rem 0; }
.control-readout div + div { padding-left: 1rem; border-left: 1px solid var(--line); }
.control-readout span { display: block; color: var(--faint); font-size: .7rem; }
.control-readout strong { display: block; margin-top: .25rem; font-family: var(--mono); font-size: 1.25rem; font-weight: 500; }
.power-list { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 1.3rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.power-list article { padding: 1rem .7rem 1rem 0; }
.power-list article + article { padding-left: .7rem; border-left: 1px solid var(--line); }
.power-list span { display: block; color: var(--faint); font-size: .68rem; }
.power-list strong { font-family: var(--mono); font-size: 1.1rem; font-weight: 500; }

.method-list, .provenance-list { margin: 1.4rem 0 0; }
.method-list > div, .provenance-list > div { display: grid; grid-template-columns: 11rem minmax(0, 1fr); gap: 1rem; padding: .75rem 0; border-top: 1px solid var(--line); }
.method-list dt, .provenance-list dt { color: var(--faint); font-size: .72rem; }
.method-list dd, .provenance-list dd { margin: 0; color: var(--muted); font-family: var(--mono); font-size: .72rem; overflow-wrap: anywhere; }
.limitations-panel ul { margin: 1.2rem 0 0; padding-left: 1.1rem; }
.limitations-panel li { margin: .7rem 0; color: var(--muted); font-size: .78rem; }
.references { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line-strong); }
.references ol { padding-left: 1.3rem; }
.references li { max-width: 900px; padding: .45rem 0; color: var(--muted); font-size: .78rem; }
.references a { color: var(--mint); text-underline-offset: 3px; }

footer { width: min(calc(100% - 2.5rem), var(--max)); margin: 0 auto; padding: 1.6rem 0 2.4rem; display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--line); color: var(--faint); font-family: var(--mono); font-size: .7rem; }
footer p { margin: 0; }
footer a { color: var(--mint); }
.fatal-error, .noscript { position: fixed; right: 1rem; bottom: 1rem; z-index: 50; max-width: 30rem; padding: 1rem; border: 1px solid var(--rose); background: var(--surface); }
.fatal-error span { display: block; margin-top: .25rem; color: var(--muted); font-size: .78rem; }

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: .35rem 1rem;
    padding: .65rem 1rem 0;
  }
  .topbar nav {
    position: static;
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    width: 100%;
    min-height: 50px;
    border-top: 1px solid var(--line);
    background: transparent;
  }
  .topbar nav a { border-right: 1px solid var(--line); }
  .topbar nav a:last-child { border-right: 0; }
  section { scroll-margin-top: 132px; }
  .scroll-hint { display: block; }
  .hero { gap: 2rem; }
  .robustness-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 740px) {
  main { width: min(calc(100% - 1.5rem), var(--max)); padding-top: 1.5rem; }
  .topbar { min-height: 64px; padding: .55rem 1rem 0; }
  .identity small { display: none; }
  .technical-link { font-size: .66rem; }
  .hero, .secondary-grid, .evidence-banner, .workspace-grid, .methods-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 1rem; }
  h1 { font-size: clamp(2.8rem, 14vw, 4rem); }
  .metric-rail { grid-template-columns: repeat(2, 1fr); }
  .metric-rail article:nth-child(2) { border-right: 0; }
  .metric-rail article:nth-child(n+3) { border-top: 1px solid var(--line); }
  .finding-copy { padding-left: 0; border-left: 0; }
  .robustness-grid { grid-template-columns: repeat(2, 1fr); }
  .scanner-grid { grid-template-columns: 1fr; }
  .section-heading, .robustness-heading { align-items: flex-start; flex-direction: column; }
  .method-list > div, .provenance-list > div { grid-template-columns: 1fr; gap: .2rem; }
  footer { width: min(calc(100% - 1.5rem), var(--max)); flex-direction: column; }
}

@media (max-width: 430px) {
  .panel { padding: 1rem; }
  .technical-link { max-width: 7rem; text-align: right; }
  .metric-rail article { padding: 1rem .7rem; }
  .metric-rail article:first-child { padding-left: .7rem; }
  .effect-display dl, .control-readout, .power-list { grid-template-columns: 1fr; }
  .effect-display dl div + div, .control-readout div + div, .power-list article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .robustness-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}