@import url("tokens.css");
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 15px/1.55 var(--font-sans); }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
header { border-bottom: var(--rule-soft); }
.primary { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; padding: 14px 32px; }
.brand { display: flex; align-items: baseline; gap: 10px; color: var(--ink); font-size: 20px; font-weight: 700; text-decoration: none; letter-spacing: .02em; }
.brand span, .eyebrow { font: 11px/1.6 var(--font-mono); text-transform: uppercase; letter-spacing: .09em; color: var(--ink-muted); }
.brand span { color: var(--ink-dim); }
.primary-links { display: flex; flex-wrap: wrap; gap: 22px; }
.primary-links a { text-decoration: none; color: var(--ink-muted); text-transform: uppercase; font-size: 13px; font-weight: 500; letter-spacing: .04em; }
.primary-links [aria-current] { border-bottom: 2px solid var(--accent); color: var(--ink); }
.search { display: flex; margin-left: auto; border: var(--rule-soft); background: var(--panel); height: 44px; width: 260px; }
.search input { width: 100%; min-width: 0; border: 0; background: transparent; font: inherit; padding: 10px 12px; }
.search button { border: 0; border-left: var(--rule-soft); background: transparent; color: var(--ink-muted); cursor: pointer; width: 40px; }
.search button:hover { background: var(--ground); }
.sr-only, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.skip:focus { display: block; padding: 12px; background: var(--panel); }
.home { max-width: 1440px; padding: 56px 48px 96px; margin: auto; }
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.intro { display: flex; flex-direction: column; gap: 26px; }
.intro > * { margin: 0; }
h1 { font-size: 44px; font-weight: 600; letter-spacing: -.03em; line-height: 1.08; margin: 12px 0 24px; overflow-wrap: anywhere; }
.home h1 { font-size: 60px; line-height: 1.02; text-wrap: balance; }
.lede { font-size: 17px; color: var(--ink-muted); text-wrap: pretty; }
.intro .lede { font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 22px; border: 1px solid var(--ink); color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 600; }
.primary-button { background: var(--ink); color: var(--ground); }
.primary-button:hover { background: var(--accent); color: var(--panel); }
pre { border: var(--rule-soft); border-left: var(--listing-bar); background: var(--panel); padding: 16px; overflow-x: auto; font: 13px/1.7 var(--font-mono); }
code { font-family: var(--font-mono); font-size: .87em; overflow-wrap: anywhere; }
pre code { font: inherit; overflow-wrap: normal; }
img { max-width: 100%; height: auto; }
.organ-map { margin: 0; padding: 24px; background: var(--panel); border: var(--rule-soft); }
figcaption, h2 { border-bottom: var(--rule-cap); padding-bottom: 8px; font-size: 14px; font-weight: 600; }
figcaption { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 22px; }
figcaption a { color: var(--ink-muted); font: 11px var(--font-mono); white-space: nowrap; }
.number { font-family: var(--font-mono); color: var(--accent); font-weight: 400; }
.organ-card { display: flex; flex-direction: column; gap: 6px; padding: 14px 16px; border: 1px solid var(--ink); text-decoration: none; color: var(--ink); background: var(--panel); min-width: 0; position: relative; }
.organ-card:hover { outline: 2px solid var(--accent); outline-offset: 2px; }
.organ-card > span:not(.card-title) { color: var(--ink-muted); font-size: 12.5px; }
.card-title { display: flex; justify-content: space-between; gap: 8px; font-size: 20px; font-weight: 600; letter-spacing: -.01em; }
.card-title .number { font-size: 11px; padding-top: 5px; white-space: nowrap; }
.organ-card small { color: var(--ink-muted); font: 11px/1.6 var(--font-mono); }
.cortex, .thalamus { max-width: 300px; margin: auto; }
.thalamus { color: var(--ink-on-dark); background: var(--ink); }
.thalamus > span:not(.card-title), .thalamus small { color: var(--ink-on-dark-2); }
.thalamus .number { color: var(--accent-on-dark); }
.thalamus:hover { color: var(--ink-on-dark); }
.organ-card.early { border-style: dashed; background: var(--ground); }
.early, .early .number { color: var(--alarm); }
.spine { height: 32px; width: 1px; background: var(--ink); margin: auto; }
.spine.short { height: 24px; }
.branches { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; background: linear-gradient(var(--ink), var(--ink)) center / 1px 100% no-repeat, linear-gradient(var(--ink), var(--ink)) center / 100% 1px no-repeat; }
.map-foot { font: 11px/1.7 var(--font-mono); color: var(--ink-muted); text-align: center; margin: 8px 0 0; }
.home-section { margin-top: 104px; }
.home-section h2 { margin-bottom: 20px; }
.more { float: right; font-size: 13px; font-weight: 400; }
.lifecycle { display: grid; grid-template-columns: repeat(5, 1fr); list-style: none; padding: 0; border: var(--rule-soft); gap: 1px; background: var(--hairline); }
.lifecycle li { padding: 20px; background: var(--panel); display: flex; flex-direction: column; gap: 8px; }
h3 { font-size: 18px; font-weight: 600; margin: 0; }
.lifecycle p { font-size: 13.5px; color: var(--ink-muted); margin: 0 0 14px; }
.stage-organs { margin-top: auto; display: flex; flex-wrap: wrap; gap: 8px; font: 11px/1.7 var(--font-mono); }
.method { border-top: var(--rule-cap); padding-top: 32px; display: grid; grid-template-columns: 1fr 2fr; gap: 48px; }
.method h2 { font-size: 36px; line-height: 1.05; letter-spacing: -.025em; border: 0; }
.method ol { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding-left: 20px; }
.method p { color: var(--ink-muted); }
.panels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; border: var(--rule-soft); background: var(--hairline); }
.panels > * { background: var(--panel); padding: 20px; }
.panels p { margin: 8px 0; }
.start-links a { text-decoration: none; color: var(--ink); }
.start-links a:hover { box-shadow: inset 0 3px var(--accent); }
.shell { display: grid; grid-template-columns: 256px minmax(0, 1fr) 220px; max-width: 1600px; margin: auto; }
.sidebar { padding: 32px 20px 48px 32px; font-size: 13px; }
.sidebar > summary { display: none; }
.page-contents { display: none; }
.sidebar section { margin-bottom: 26px; }
.sidebar .eyebrow { padding-bottom: 8px; border-bottom: var(--rule-soft); }
.sidebar a { display: block; padding: 5px 0; color: var(--ink-muted); text-decoration: none; }
.sidebar a[aria-current] { color: var(--ink); font-weight: 600; border-left: 2px solid var(--accent); padding-left: 10px; }
.interior { min-width: 0; padding: 32px 40px 72px; }
.interior > .eyebrow:first-child { margin-top: 0; }
.interior h2 { margin-top: 44px; scroll-margin-top: 20px; }
.interior h3 { margin-top: 28px; font-size: 16px; }
.interior li { margin-block: 8px; }
.interior li > p { margin-block: 8px; }
.interior li li { margin-block: 6px; }
.interior > h2:first-of-type { margin-top: 28px; }
.architecture-flow { padding: 0; list-style: none; counter-reset: stage; }
.architecture-flow > li { position: relative; counter-increment: stage; border: var(--rule-soft); background: var(--panel); padding: 18px 22px 18px 64px; margin: 0 0 28px; }
.architecture-flow > li::before { content: counter(stage, decimal-leading-zero); position: absolute; left: 20px; top: 18px; font: 14px/1.7 var(--font-mono); color: var(--accent); }
.architecture-flow > li:not(:last-child)::after { content: "↓"; position: absolute; bottom: -27px; left: 24px; color: var(--accent); }
.architecture-flow h3 { margin: 0; }
.architecture-flow p { margin: 8px 0 0; }
.contract-flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; list-style: none; padding: 0; }
.contract-flow > li { padding: 18px; border: var(--rule-soft); background: var(--panel); }
.contract-flow strong { font-size: 15px; }
.faculty { font-size: 18px; color: var(--ink-muted); margin-top: -12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips > * { padding: 4px 9px; border: var(--rule-soft); background: var(--panel); font: 11.5px/1.6 var(--font-mono); text-decoration: none; }
.status.verified { color: var(--accent); }
.chips .verified { border-color: var(--accent); }
.provenance { font-size: 12px; color: var(--ink-muted); }
.rail { padding: 32px 24px; font-size: 12px; }
.rail a { display: block; margin-bottom: 10px; text-decoration: none; color: var(--ink-muted); overflow-wrap: anywhere; }
.rail .eyebrow { margin: 0 0 16px; border-bottom: var(--rule-soft); padding-bottom: 8px; }
.rail .eyebrow:not(:first-child) { margin-top: 28px; }
.source { font-family: var(--font-mono); font-size: 11px; }
.table-wrap { overflow: auto; border: var(--rule-soft); background: var(--panel); }
table { border-collapse: collapse; width: 100%; min-width: 32rem; font-size: 13px; background: var(--panel); }
.table-hint { font: 11px/1.7 var(--font-mono); color: var(--ink-muted); margin: 8px 0; }
td:first-child code { white-space: nowrap; overflow-wrap: normal; }
th { text-align: left; border-bottom: var(--rule-cap); font-weight: 500; }
th, td { padding: 12px 14px; vertical-align: top; }
td { border-bottom: var(--rule-soft); }
tbody tr:last-child td { border-bottom: 0; }
.flow { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0; list-style: none; gap: 12px; }
.flow li { padding: 16px; background: var(--panel); border: var(--rule-soft); }
.flow small { color: var(--ink-muted); }
.notice { border: 1px solid var(--alarm); border-left-width: 3px; padding: 16px; background: var(--panel); }
blockquote { border-left: 3px solid var(--accent); padding-left: 16px; margin-left: 0; color: var(--ink-muted); }
.search-results { padding: 0; list-style: none; }
.search-results li { border-top: var(--rule-soft); padding: 20px 0; }
.search-results a { font-size: 20px; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding: 24px 32px; border-top: var(--rule-soft); font: 11px/1.7 var(--font-mono); color: var(--ink-muted); }
@media (max-width: 1200px) { .shell { grid-template-columns: 220px minmax(0,1fr); } .rail { grid-column: 2; padding: 0 40px 40px; } .hero { gap: 32px; } .home { padding: 40px 32px 72px; } .home h1 { font-size: 52px; } .branches { gap: 32px; } .card-title { flex-wrap: wrap; } }
@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; gap: 40px; }
  .lifecycle, .contract-flow { grid-template-columns: 1fr; }
  .shell { grid-template-columns: 1fr; }
  .sidebar { padding: 0 24px; border-bottom: var(--rule-soft); }
  .sidebar > summary { display: list-item; padding: 14px 0; cursor: pointer; }
  .sidebar nav { max-height: 50vh; overflow: auto; padding-bottom: 16px; }
  .sidebar section { margin-bottom: 16px; }
  .interior { padding: 24px 24px 48px; }
  .page-contents { display: block; border-block: var(--rule-soft); margin: 0 0 24px; }
  .page-contents summary { padding: 12px 0; cursor: pointer; font-size: 13px; }
  .page-contents nav { padding: 0 0 12px; }
  .page-contents a { display: block; padding: 6px 0; font-size: 13px; }
  .rail { grid-column: 1; padding: 0 24px 32px; }
  .method { grid-template-columns: 1fr; gap: 8px; }
  .home-section { margin-top: 64px; }
  .primary { padding: 12px 24px; gap: 12px; }
  .search { margin-left: 0; flex: 1 1 220px; }
  .primary-links { gap: 12px 16px; }
  .primary-links a { font-size: 12px; }
  .panels { grid-template-columns: 1fr; }
  h1 { font-size: 36px; }
}
@media (max-width: 440px) { .home { padding: 32px 20px 64px; } .home h1 { font-size: 44px; } .organ-map { padding: 16px; } .branches { gap: 16px; } .organ-card { padding: 12px 10px; } .card-title { font-size: 17px; } .method ol, .flow { grid-template-columns: 1fr; } figcaption { flex-wrap: wrap; } .more { float: none; display: block; margin-top: 8px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }