/* JAIRL W3.0 — mobile-first editorial research system */
:root {
  --ink: #18201d;
  --ink-2: #303936;
  --muted: #66706c;
  --paper: #f3f1ea;
  --surface: #faf9f4;
  --wash: #e9ebe4;
  --line: #cdd0c9;
  --line-dark: #9fa49d;
  --accent: #a33d2c;
  --accent-soft: #efdcd5;
  --forest: #214b40;
  --forest-soft: #dce6e0;
  --gold-soft: #eee4c8;
  --max: 1240px;
  --reading: 760px;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: Inter, "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 15px; line-height: 1.75; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { color: var(--accent); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
img, svg { max-width: 100%; }
::selection { background: var(--accent-soft); }

.skip-link { position: fixed; z-index: 100; top: -80px; left: 16px; padding: 10px 14px; background: var(--ink); color: #fff; text-decoration: none; }
.skip-link:focus { top: 12px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font: 700 10px/1.4 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.label { margin: 0; color: var(--muted); font: 700 10px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; }

.site-header { width: min(100%, var(--max)); min-height: 68px; margin: 0 auto; padding: 12px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand:hover { color: var(--ink); }
.brand-mark { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid var(--ink); font: 700 14px/1 var(--serif); }
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy b { font-size: 13px; letter-spacing: .06em; }
.brand-copy small { display: none; color: var(--muted); font: 8px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.site-header nav { display: flex; align-items: center; gap: 14px; overflow-x: auto; scrollbar-width: none; }
.site-header nav::-webkit-scrollbar { display: none; }
.site-header nav a, .back { color: var(--muted); font: 600 12px/1.3 var(--sans); text-decoration: none; white-space: nowrap; }
.site-header nav a:hover, .back:hover { color: var(--accent); }

main { width: min(100%, var(--max)); margin: 0 auto; padding: 0 18px; }
.hero { padding: 54px 0 30px; border-bottom: 1px solid var(--ink); }
.hero-layout { display: grid; gap: 42px; }
.hero h1 { max-width: 800px; margin: 0; font: 500 clamp(43px, 12vw, 82px)/1.08 var(--serif); letter-spacing: -.045em; }
.hero h1 em { color: var(--forest); font-style: normal; }
.hero-side { padding-top: 2px; }
.hero-copy { margin: 0 0 24px; color: var(--ink-2); font: 17px/1.75 var(--serif); }
.version-coordinate { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.version-coordinate > div { padding: 14px 8px 14px 0; }
.version-coordinate > div + div { padding-left: 16px; border-left: 1px solid var(--line); }
.version-coordinate span, .version-coordinate small { display: block; color: var(--muted); font: 10px/1.5 var(--mono); }
.version-coordinate strong { display: block; margin: 3px 0; font: 600 28px/1.1 var(--serif); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 9px 14px; border: 1px solid var(--ink); color: var(--ink); font-size: 12px; font-weight: 700; text-decoration: none; }
.button:hover { border-color: var(--forest); background: var(--forest); color: #fff; }
.button.primary { background: var(--ink); color: #fff; }
.hero-note { margin: 38px 0 0; padding-top: 16px; border-top: 1px solid var(--line); font: 500 17px/1.5 var(--serif); }
.hero-note span { display: block; margin-bottom: 4px; color: var(--accent); font: 700 9px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; }

.orientation, .indexed-section { display: grid; padding: 66px 0; border-bottom: 1px solid var(--line-dark); }
.section-index { display: flex; align-items: baseline; gap: 12px; margin-bottom: 24px; }
.section-index span { color: var(--accent); font: 700 14px/1 var(--mono); }
.section-index p { margin: 0; color: var(--muted); font: 700 10px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.section-heading { display: grid; gap: 12px; margin-bottom: 28px; }
.section-heading h2 { max-width: 760px; margin: 0; font: 500 clamp(32px, 8vw, 52px)/1.2 var(--serif); letter-spacing: -.025em; }
.section-heading > p { max-width: 480px; margin: 0; color: var(--muted); font-size: 13px; }
.section-heading.compact { margin-bottom: 24px; }
.text-link { color: var(--forest); font-weight: 700; text-decoration: none; }

.answer-grid { border-top: 1px solid var(--ink); }
.answer-grid article { padding: 22px 0; border-bottom: 1px solid var(--line); }
.answer-grid span { color: var(--accent); font: 700 10px/1.4 var(--mono); }
.answer-grid h3 { margin: 9px 0 7px; font: 500 23px/1.35 var(--serif); }
.answer-grid p { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.answer-grid a { color: var(--forest); font-size: 12px; font-weight: 700; text-decoration: none; }

.position-board { border-top: 3px solid var(--ink); }
.position-thesis { padding: 26px 0; border-bottom: 1px solid var(--line-dark); }
.position-thesis h3 { margin: 12px 0 16px; font: 500 27px/1.5 var(--serif); }
.position-thesis > p:last-child { margin: 0; color: var(--muted); }
.position-facts { margin: 0; }
.position-facts > div { display: grid; gap: 5px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.position-facts dt { color: var(--accent); font: 700 10px/1.5 var(--mono); letter-spacing: .08em; }
.position-facts dd { margin: 0; font-size: 13px; }

.question-list { border-top: 1px solid var(--ink); }
.question-row { display: grid; grid-template-columns: 40px 1fr 20px; gap: 12px; padding: 22px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.question-row:hover { color: var(--ink); background: var(--surface); }
.question-no { padding-top: 4px; color: var(--accent); font: 700 12px/1 var(--mono); }
.question-row > div > small { color: var(--muted); font: 700 9px/1.4 var(--mono); letter-spacing: .1em; }
.question-row h3 { margin: 6px 0 8px; font: 500 23px/1.35 var(--serif); }
.question-row p { margin: 0; color: var(--muted); font-size: 13px; }
.question-row > strong { display: none; }
.question-row > i { color: var(--accent); font-size: 18px; font-style: normal; justify-self: end; }

.evolution-rail { position: relative; margin: 0; padding: 0; list-style: none; }
.evolution-rail::before { content: ""; position: absolute; top: 0; bottom: 0; left: 14px; width: 1px; background: var(--line-dark); }
.evolution-rail li { position: relative; display: grid; grid-template-columns: 68px 1fr; padding: 0 0 28px; }
.evolution-rail li::before { content: ""; position: absolute; top: 5px; left: 10px; width: 9px; height: 9px; border: 2px solid var(--paper); background: var(--line-dark); border-radius: 50%; }
.evolution-rail li.current::before { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.evolution-rail > li > span { padding-left: 30px; color: var(--muted); font: 700 9px/1.5 var(--mono); white-space: nowrap; }
.evolution-rail b { display: block; font: 500 20px/1.35 var(--serif); }
.evolution-rail p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.evolution-rail .current b { color: var(--accent); }

.roadmap-list { margin: 0; padding: 0; border-top: 1px solid var(--ink); list-style: none; }
.roadmap-list li { display: grid; gap: 14px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.roadmap-list li > span { color: var(--muted); font: 600 10px/1.5 var(--mono); }
.roadmap-list li > span b { display: inline-block; min-width: 54px; color: var(--accent); }
.roadmap-list h3 { margin: 0 0 7px; font: 500 23px/1.4 var(--serif); }
.roadmap-list p { margin: 0 0 11px; color: var(--muted); }
.roadmap-list small { display: block; padding-left: 12px; border-left: 2px solid var(--forest); color: var(--forest); font-size: 12px; font-weight: 700; }
.roadmap-list li.active { background: var(--surface); box-shadow: -18px 0 0 var(--surface), 18px 0 0 var(--surface); }
.section-cta { margin: 26px 0 0; }

.archive-group { display: grid; border-top: 3px solid var(--ink); }
.archive-group + .archive-group { margin-top: 46px; }
.archive-group > header { padding: 20px 0; }
.archive-group > header span { color: var(--accent); font: 700 9px/1.4 var(--mono); letter-spacing: .12em; }
.archive-group > header h3 { margin: 5px 0 0; font: 500 23px/1.4 var(--serif); }
.archive-list { border-top: 1px solid var(--line); }
.archive-list a { display: block; padding: 22px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.archive-list a:hover h4 { color: var(--accent); }
.archive-list span { color: var(--forest); font: 700 10px/1.4 var(--mono); }
.archive-list h4 { margin: 10px 0; font: 500 22px/1.4 var(--serif); }
.archive-list p { margin: 0 0 15px; color: var(--muted); font-size: 13px; }
.archive-list small { color: var(--muted); font: 10px/1.4 var(--mono); }
.foundation-group { border-top-color: var(--line-dark); }
.foundation-group .archive-list span { color: var(--muted); }

.method-strip { margin: 0 0 70px; padding: 30px 22px; background: var(--ink); color: #f7f5ee; }
.method-strip .eyebrow { color: #df8c79; }
.method-strip h2 { margin: 0; font: 500 28px/1.3 var(--serif); }
.method-strip > p { margin: 26px 0; color: #bdc5c1; font-size: 13px; }
.method-strip > a { color: #f0b8aa; font-size: 12px; font-weight: 700; text-decoration: none; }
.site-footer { width: min(100%, var(--max)); margin: 0 auto; padding: 28px 18px; border-top: 1px solid var(--line-dark); color: var(--muted); font-size: 11px; text-align: left; }
.site-footer p { margin: 4px 0; }
.site-footer a { color: var(--forest); }

/* Evolution, changelog and shared page introductions */
.page-intro { display: grid; gap: 38px; padding: 56px 0 48px; border-bottom: 1px solid var(--ink); }
.page-intro h1 { max-width: 800px; margin: 0; font: 500 clamp(41px, 11vw, 74px)/1.12 var(--serif); letter-spacing: -.04em; }
.intro-aside > p { margin: 0 0 24px; color: var(--ink-2); font: 16px/1.75 var(--serif); }
.version-key { margin: 0; border-top: 1px solid var(--line-dark); }
.version-key > div { display: grid; grid-template-columns: 66px 1fr; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.version-key dt { color: var(--accent); font: 700 13px/1.5 var(--mono); }
.version-key dd { margin: 0; }
.version-key b, .version-key small { display: block; }
.version-key b { font-size: 12px; }
.version-key small { color: var(--muted); font-size: 10px; }

.evolution-log { border-top: 1px solid var(--ink); }
.evolution-log > article { display: grid; gap: 18px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.evolution-log > article.current { background: var(--surface); box-shadow: -18px 0 0 var(--surface), 18px 0 0 var(--surface); }
.log-meta { display: grid; grid-template-columns: 1fr auto; align-items: start; gap: 4px 12px; }
.log-meta time { color: var(--muted); font: 10px/1.4 var(--mono); }
.log-meta strong { grid-row: 1 / 3; grid-column: 2; color: var(--accent); font: 700 19px/1 var(--mono); }
.log-meta span { color: var(--forest); font: 700 9px/1.4 var(--mono); letter-spacing: .08em; }
.log-body h3 { margin: 0 0 9px; font: 500 25px/1.35 var(--serif); }
.log-body > p { margin: 0 0 17px; color: var(--muted); }
.log-body dl { margin: 0; border-top: 1px solid var(--line); }
.log-body dl > div { display: grid; gap: 3px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.log-body dt { color: var(--accent); font: 700 9px/1.4 var(--mono); }
.log-body dd { margin: 0; font-size: 12px; }
.design-track { margin-top: 54px; padding: 24px 20px; background: var(--ink); color: #fff; }
.design-track .eyebrow { color: #df8c79; }
.design-track h3 { margin: 0; font: 500 28px/1.3 var(--serif); }
.design-track > div > p:last-child { color: #bdc5c1; font-size: 12px; }
.design-track ol { margin: 26px 0 0; padding: 0; border-top: 1px solid #48524e; list-style: none; }
.design-track li { display: grid; grid-template-columns: 55px 1fr; gap: 14px; padding: 17px 0; border-bottom: 1px solid #48524e; }
.design-track li > span { color: #df8c79; font: 700 11px/1.5 var(--mono); }
.design-track b { font: 500 18px/1.4 var(--serif); }
.design-track p { margin: 4px 0 0; color: #bdc5c1; font-size: 12px; }

.state-table { border-top: 1px solid var(--ink); }
.state-table article { padding: 24px 0; border-bottom: 1px solid var(--line); }
.state-table header { display: flex; justify-content: space-between; gap: 12px; color: var(--accent); font: 700 10px/1.5 var(--mono); }
.state-table header strong { font-size: 14px; }
.state-table h3 { margin: 10px 0 15px; font: 500 23px/1.4 var(--serif); }
.state-table meter { display: block; width: 100%; height: 7px; margin-bottom: 17px; border: 0; background: var(--line); }
.state-table meter::-webkit-meter-bar { border: 0; border-radius: 0; background: var(--line); }
.state-table meter::-webkit-meter-optimum-value { background: var(--accent); }
.state-table meter::-moz-meter-bar { background: var(--accent); }
.state-table article > div p { margin: 8px 0; color: var(--muted); font-size: 12px; }
.state-table article > div b { margin-right: 7px; color: var(--ink); }
.state-table a { display: inline-block; margin-top: 12px; color: var(--forest); font-size: 12px; font-weight: 700; text-decoration: none; }

.change-list { border-top: 1px solid var(--ink); }
.change-list article { display: grid; gap: 16px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.change-list article > header { display: grid; grid-template-columns: 1fr auto; align-items: start; gap: 5px; }
.change-list time { color: var(--muted); font: 10px/1.4 var(--mono); }
.change-list header strong { grid-row: 1 / 3; grid-column: 2; color: var(--accent); font: 700 18px/1 var(--mono); }
.change-list header span { color: var(--forest); font: 700 9px/1.4 var(--mono); }
.change-list h3 { margin: 0 0 10px; font: 500 25px/1.4 var(--serif); }
.change-list article > div p { margin: 7px 0; color: var(--muted); font-size: 13px; }
.change-list article > div p b { color: var(--ink); }
.design-changes article:first-child { background: var(--surface); box-shadow: -18px 0 0 var(--surface), 18px 0 0 var(--surface); }

/* Existing research and evidence pages */
.article-page main { max-width: calc(var(--reading) + 36px); }
.article-head { padding: 56px 0 38px; border-bottom: 1px solid var(--ink); }
.article-head h1 { margin: 9px 0 15px; font: 500 clamp(36px, 9vw, 58px)/1.2 var(--serif); letter-spacing: -.035em; }
.article-meta { margin: 0; color: var(--muted); font: 11px/1.6 var(--mono); }
.article-body { padding: 36px 0 76px; font-size: 15px; }
.article-body > :first-child { margin-top: 0; }
.article-body h2 { margin: 52px 0 18px; padding-top: 16px; border-top: 1px solid var(--line-dark); font: 500 28px/1.4 var(--serif); }
.article-body h3 { margin: 32px 0 12px; font: 500 22px/1.4 var(--serif); }
.article-body p, .article-body li { color: var(--ink-2); }
.article-body ul, .article-body ol { padding-left: 1.35em; }
.article-body li + li { margin-top: 8px; }
.article-body a { color: var(--forest); font-weight: 650; }
.article-body blockquote, .verdict { margin: 0 0 30px; padding: 20px; border: 0; border-left: 3px solid var(--accent); background: var(--surface); color: var(--ink); font: 500 17px/1.7 var(--serif); }
.evidence { display: grid; border-top: 1px solid var(--line); }
.evidence > * { padding: 11px 0; border-bottom: 1px solid var(--line); }
.evidence b { color: var(--forest); }
.judgment-card { display: grid; margin: 28px 0 40px; border-top: 3px solid var(--ink); background: var(--surface); }
.judgment-card > div { padding: 12px 14px; border-bottom: 1px solid var(--line); }
.judgment-card span, .judgment-card strong { display: block; }
.judgment-card span { color: var(--muted); font: 9px/1.4 var(--mono); letter-spacing: .08em; }
.judgment-card strong { margin-top: 4px; font-size: 13px; }
.judgment-card > p { margin: 0; padding: 14px; color: var(--muted); font-size: 12px; }
.ledger-wrap { margin: 26px 0; overflow-x: auto; border: 1px solid var(--line); background: var(--surface); }
.ledger { width: 100%; min-width: 920px; border-collapse: collapse; font-size: 12px; line-height: 1.55; }
.ledger th, .ledger td { padding: 10px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.ledger th { background: var(--ink); color: #fff; font: 700 10px/1.4 var(--mono); letter-spacing: .05em; }
.ledger tbody tr:nth-child(even) { background: #f1f0ea; }
.ledger td:first-child { color: var(--accent); font: 700 11px/1.5 var(--mono); }
.ledger a { color: var(--forest); font-weight: 700; }
.evidence-grade { display: inline-block; padding: 2px 7px; font: 700 9px/1.4 var(--mono); }
.evidence-grade.high { background: var(--forest-soft); color: var(--forest); }
.evidence-grade.mid { background: var(--gold-soft); color: #685117; }
.evidence-grade.low { background: var(--accent-soft); color: #7c2b1e; }
.article-body table:not(.ledger) { width: 100%; margin: 26px 0; border-collapse: collapse; font-size: 12px; }
.article-body table:not(.ledger) th, .article-body table:not(.ledger) td { padding: 10px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-body table:not(.ledger) th { background: var(--ink); color: #fff; }

/* 404 */
.error-page { min-height: 100vh; background: var(--ink); color: #fff; }
.error-main { width: min(100%, 820px); min-height: 100vh; margin: 0; padding: 54px 22px; display: flex; flex-direction: column; justify-content: center; }
.error-page .eyebrow { color: #df8c79; }
.error-code { margin: 0; color: #45504c; font: 700 clamp(100px, 40vw, 280px)/.8 var(--mono); letter-spacing: -.1em; }
.error-main h1 { margin: 34px 0 18px; font: 500 clamp(38px, 10vw, 64px)/1.2 var(--serif); }
.error-main > p:not(.eyebrow, .error-code) { color: #bdc5c1; }
.error-page .button { border-color: #fff; color: #fff; }
.error-page .button.primary { background: #fff; color: var(--ink); }

@media (min-width: 640px) {
  body { font-size: 16px; }
  .site-header, main, .site-footer { padding-left: 24px; padding-right: 24px; }
  .brand-copy small { display: block; }
  .site-header nav { gap: 22px; }
  .answer-grid { display: grid; grid-template-columns: 1fr 1fr; }
  .answer-grid article { padding: 24px; border-right: 1px solid var(--line); }
  .answer-grid article:nth-child(even) { border-right: 0; }
  .question-row { grid-template-columns: 50px 1fr 130px 24px; padding: 25px 12px; }
  .question-row > strong { display: block; color: var(--accent); font: 600 24px/1.2 var(--serif); text-align: right; }
  .question-row > strong small { display: block; margin-top: 5px; color: var(--muted); font: 9px/1.4 var(--mono); }
  .roadmap-list li { grid-template-columns: 100px 1fr; gap: 22px; }
  .archive-list { display: grid; grid-template-columns: 1fr 1fr; }
  .archive-list a { padding: 24px; border-right: 1px solid var(--line); }
  .archive-list a:nth-child(even) { border-right: 0; }
  .evidence { grid-template-columns: 130px 1fr; }
  .evidence > * { padding: 12px; }
  .judgment-card { grid-template-columns: 145px 1fr; }
  .judgment-card > div { display: contents; }
  .judgment-card span, .judgment-card strong { padding: 12px 14px; border-bottom: 1px solid var(--line); }
  .judgment-card > p { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
  .site-header { min-height: 78px; padding-top: 14px; padding-bottom: 14px; }
  .hero { padding: 86px 0 38px; }
  .hero-layout { grid-template-columns: minmax(0, 1.55fr) minmax(300px, .65fr); gap: 72px; align-items: end; }
  .hero h1 { font-size: clamp(64px, 6.3vw, 86px); }
  .hero-note { display: flex; align-items: baseline; gap: 24px; }
  .hero-note span { min-width: 130px; }
  .orientation, .indexed-section { grid-template-columns: 128px 1fr; padding: 92px 0; }
  .section-index { display: block; margin: 5px 0 0; }
  .section-index span { display: block; margin-bottom: 10px; font-size: 18px; }
  .section-heading { grid-template-columns: minmax(0, 1fr) minmax(260px, .55fr); align-items: end; gap: 50px; margin-bottom: 40px; }
  .section-heading.compact { grid-template-columns: 1fr; }
  .answer-grid { grid-template-columns: repeat(4, 1fr); }
  .answer-grid article, .answer-grid article:nth-child(even) { min-height: 245px; padding: 25px 20px; border-right: 1px solid var(--line); display: flex; flex-direction: column; }
  .answer-grid article:last-child { border-right: 0; }
  .answer-grid a { margin-top: auto; }
  .position-board { display: grid; grid-template-columns: 1.15fr .85fr; }
  .position-thesis { padding: 38px 42px 38px 0; border-right: 1px solid var(--line-dark); border-bottom: 0; }
  .position-thesis h3 { font-size: 32px; }
  .position-facts > div { padding: 18px 0 18px 34px; }
  .question-row { grid-template-columns: 60px minmax(0, 1fr) 180px 30px; gap: 20px; padding: 28px 18px; }
  .evolution-rail { display: grid; grid-template-columns: repeat(5, 1fr); padding-top: 28px; }
  .evolution-rail::before { top: 7px; right: 0; bottom: auto; left: 0; width: auto; height: 1px; }
  .evolution-rail li { grid-template-columns: 1fr; padding: 20px 22px 0 0; border-right: 1px solid var(--line); }
  .evolution-rail li:last-child { padding-left: 20px; border-right: 0; }
  .evolution-rail li::before { top: -25px; left: 0; }
  .evolution-rail li:last-child::before { left: 20px; }
  .evolution-rail > li > span { padding: 0; }
  .evolution-rail b { margin-top: 14px; }
  .archive-group { grid-template-columns: 220px 1fr; }
  .archive-group > header { padding: 22px 28px 0 0; }
  .method-strip { display: grid; grid-template-columns: 1fr 1.35fr auto; gap: 40px; align-items: end; margin-bottom: 90px; padding: 40px; }
  .method-strip > p { margin: 0; }
  .site-footer { display: flex; justify-content: space-between; padding-top: 32px; padding-bottom: 32px; }
  .page-intro { grid-template-columns: minmax(0, 1.4fr) minmax(310px, .6fr); align-items: end; gap: 70px; padding: 82px 0 62px; }
  .evolution-log > article { grid-template-columns: 150px 1fr; gap: 34px; padding: 34px 18px; }
  .log-meta { display: block; }
  .log-meta time, .log-meta strong, .log-meta span { display: block; }
  .log-meta strong { margin: 7px 0; font-size: 23px; }
  .log-body dl > div { grid-template-columns: 90px 1fr; gap: 14px; }
  .design-track { display: grid; grid-template-columns: .7fr 1.3fr; gap: 48px; padding: 34px; }
  .design-track ol { margin: 0; }
  .state-table { display: grid; grid-template-columns: 1fr 1fr; }
  .state-table article { padding: 28px; border-right: 1px solid var(--line); }
  .state-table article:nth-child(even) { border-right: 0; }
  .change-list article { grid-template-columns: 150px 1fr; gap: 34px; padding: 32px 18px; }
  .change-list article > header { display: block; }
  .change-list time, .change-list header strong, .change-list header span { display: block; }
  .change-list header strong { margin: 7px 0; font-size: 22px; }
  .error-main { margin-left: max(24px, calc((100vw - var(--max)) / 2)); }
}

@media (min-width: 1180px) {
  .section-index { padding-left: 12px; }
  .position-thesis { padding-right: 58px; }
}

@media (max-width: 460px) {
  .site-header nav a:nth-child(5) { display: none; }
  .button { width: 100%; }
  .hero-actions { display: grid; }
  .hero h1 { font-size: 41px; }
  .page-intro h1 { font-size: 39px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media print {
  :root { --paper: #fff; --surface: #fff; }
  .site-header nav, .hero-actions, .skip-link { display: none; }
  body { font-size: 11pt; }
  a { text-decoration: none; }
  .indexed-section, .orientation { break-inside: avoid; }
}