:root {
  --paper: #eeeae0;
  --paper-deep: #e4ded1;
  --ink: #17252a;
  --ink-soft: #304248;
  --blue: #28647a;
  --blue-light: #8ab3bd;
  --red: #b4463d;
  --red-dark: #7f2f2c;
  --gold: #b88432;
  --line: #c8c0b3;
  --white: #fffdf8;
  --muted: #697477;
  --max: 1240px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Arial Narrow", "Roboto Condensed", Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
}
body::before {
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: .34;
  background-image: linear-gradient(rgba(23, 37, 42, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(23, 37, 42, .05) 1px, transparent 1px);
  background-size: 28px 28px;
}
body::after {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  content: "";
  background: radial-gradient(circle at 82% 8%, rgba(180, 70, 61, .1), transparent 30%), radial-gradient(circle at 8% 40%, rgba(40, 100, 122, .1), transparent 26%);
}
a { color: inherit; text-underline-offset: .2em; }
button, input { font: inherit; }
button { color: inherit; }
.shell { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.top-anchor { position: absolute; width: 1px; height: 1px; overflow: hidden; }
.skip-link {
  position: absolute;
  z-index: 100;
  top: 10px;
  left: -9999px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--white);
  border: 2px solid var(--red);
}
.skip-link:focus { left: 12px; }
.eyebrow, .micro-label, .topbar__status, .hero-file__top, .hero-file__bottom, .footer, .route-node i, .hero-stat small, .question-number, .domain-button__index, .evidence-mark, .source-row__top {
  font-family: var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: 12px; font-weight: 800; }
.eyebrow--light { color: var(--blue-light); }
.micro-label { display: block; color: var(--muted); font-size: 10px; font-weight: 800; line-height: 1.35; }
.section { padding: 96px 0; border-top: 1px solid rgba(23, 37, 42, .16); }
.section--paper { background: rgba(238, 234, 224, .92); }
.section--blueprint { background: rgba(228, 222, 209, .72); }
.section--ink { position: relative; overflow: hidden; color: var(--paper); background: var(--ink); }
.section--ink::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: .54;
  background-image: linear-gradient(rgba(238, 234, 224, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(238, 234, 224, .055) 1px, transparent 1px);
  background-size: 28px 28px;
}
.section--ink > .shell { position: relative; }
.section-heading { max-width: 620px; }
.section-heading--wide { max-width: 920px; }
h1, h2, h3 { overflow-wrap: normal; word-break: normal; }
p { overflow-wrap: anywhere; }
h1, h2 { margin: 0; font-family: var(--serif); font-weight: 700; letter-spacing: -.055em; }
h1 { max-width: 760px; color: var(--paper); font-size: clamp(62px, 10vw, 148px); line-height: .83; }
h2 { max-width: 900px; font-size: clamp(44px, 7vw, 88px); line-height: .92; }
h3 { margin: 0; font-size: 24px; line-height: 1.03; }
.section-lead { max-width: 820px; margin: 24px 0 0; color: var(--ink-soft); font-family: var(--serif); font-size: 22px; }
.section-lead--light { color: #c6d0cd; }
.lead { margin: 0; font-family: var(--serif); font-size: clamp(22px, 3vw, 34px); line-height: 1.25; }
.section-aside { margin: 30px 0 0; color: var(--muted); font-size: 17px; }
.section-rule { width: 100%; height: 8px; margin: 30px 0 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 16px 0 48px; color: var(--paper); background: var(--ink); }
.hero::after { position: absolute; right: -14vw; bottom: -22vw; width: 54vw; height: 54vw; border: 1px solid rgba(138, 179, 189, .24); border-radius: 50%; content: ""; }
.topbar { position: relative; z-index: 2; display: flex; min-height: 52px; align-items: center; justify-content: space-between; gap: 18px; border-bottom: 1px solid rgba(238, 234, 224, .2); }
.wordmark { color: var(--paper); font-family: var(--mono); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-decoration: none; }
.topbar__right { display: flex; align-items: center; gap: 14px; }
.topbar__status { max-width: 450px; color: #b9c8c7; font-size: 10px; text-align: right; }
.language-switch { padding: 8px 12px; color: var(--paper); border: 1px solid rgba(238, 234, 224, .5); border-radius: 999px; font-family: var(--mono); font-size: 11px; font-weight: 800; text-decoration: none; }
.language-switch:hover, .language-switch:focus-visible { color: var(--ink); background: var(--paper); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, .93fr) minmax(420px, 1.07fr); gap: clamp(36px, 8vw, 120px); align-items: center; padding: 98px 0 68px; }
.hero-copy { min-width: 0; }
.hero-deck { max-width: 680px; margin: 30px 0 0; color: #d8ded7; font-family: var(--serif); font-size: clamp(22px, 3vw, 34px); line-height: 1.22; }
.hero-note { display: flex; max-width: 620px; align-items: center; gap: 10px; margin: 26px 0 0; color: #aebcba; font-family: var(--mono); font-size: 11px; letter-spacing: .04em; text-transform: uppercase; }
.note-dot { width: 10px; height: 10px; flex: 0 0 auto; border: 2px solid var(--red); border-radius: 50%; background: transparent; }
.hero-file { position: relative; min-height: 400px; padding: 16px; border: 1px solid rgba(238, 234, 224, .26); background: #213238; box-shadow: 18px 18px 0 rgba(180, 70, 61, .34); transform: rotate(1.2deg); }
.hero-file::before { position: absolute; top: -12px; left: 12%; width: 42%; height: 16px; content: ""; background: rgba(184, 132, 50, .82); transform: rotate(-2deg); }
.hero-file__top, .hero-file__bottom { display: flex; justify-content: space-between; gap: 16px; color: #9eb5b6; font-size: 10px; }
.hero-file__paper { position: relative; display: grid; min-height: 320px; align-content: center; margin: 12px 0; padding: 54px 24px 28px; color: var(--ink); background: var(--paper); }
.hero-file__paper::before { position: absolute; inset: 18px 18px auto; height: 1px; content: ""; background: var(--line); box-shadow: 0 8px 0 var(--line), 0 16px 0 var(--line); opacity: .55; }
.hero-file__route { display: grid; grid-template-columns: 1fr 50px 1fr 50px 1fr; gap: 8px; align-items: center; }
.route-node { display: grid; min-height: 104px; align-content: center; gap: 8px; padding: 13px; border: 1px solid var(--line); background: rgba(255, 253, 248, .74); font-family: var(--serif); font-size: 18px; line-height: 1.05; }
.route-node i { color: var(--blue); font-size: 10px; font-style: normal; }
.route-node--red { border-color: var(--red); }
.route-node--red i { color: var(--red); }
.route-node--ink { border-color: var(--ink); }
.route-line { height: 2px; background: var(--blue); }
.route-line--red { background: var(--red); }
.hero-stamp { position: absolute; top: 48%; right: 21%; display: grid; width: 104px; height: 104px; place-content: center; gap: 2px; color: var(--red); border: 3px solid var(--red); border-radius: 50%; font-family: var(--mono); font-size: 10px; text-align: center; text-transform: uppercase; transform: rotate(-12deg); }
.hero-stamp b { font-size: 13px; }
.hero-file__caption { max-width: 360px; margin-top: 34px; font-family: var(--mono); font-size: 11px; line-height: 1.45; text-transform: uppercase; }
.hero-stats { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 0; margin: 0; list-style: none; }
.hero-stat { min-height: 150px; padding: 16px; border-top: 3px solid var(--blue-light); background: rgba(255, 253, 248, .065); }
.hero-stat:nth-child(2) { border-top-color: var(--red); }
.hero-stat:nth-child(3) { border-top-color: var(--gold); }
.hero-stat:nth-child(4) { border-top-color: var(--paper); }
.hero-stat strong { display: block; margin-bottom: 10px; color: var(--paper); font-family: var(--serif); font-size: clamp(29px, 4vw, 46px); line-height: .95; }
.hero-stat span { display: block; max-width: 170px; color: #d1d8d2; font-size: 14px; font-weight: 800; line-height: 1.15; }
.hero-stat small { display: block; margin-top: 18px; color: #8ea3a1; font-size: 9px; }
.scroll-cue { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 10px; margin-top: 58px; color: #b9c8c7; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.scroll-cue__line { width: 58px; height: 1px; background: var(--red); }

/* Intro */
.intro-grid { display: grid; grid-template-columns: minmax(260px, .74fr) minmax(0, 1.26fr); gap: clamp(30px, 9vw, 140px); align-items: start; }
.evidence-key { display: flex; flex-wrap: wrap; gap: 10px 30px; margin-top: 64px; padding-top: 14px; border-top: 2px solid var(--ink); }
.evidence-key div { display: flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 11px; text-transform: uppercase; }
.key-dot { width: 10px; height: 10px; border-radius: 50%; }
.key-dot--blue { background: var(--blue); }
.key-dot--red { background: var(--red); }
.key-dot--gold { background: var(--gold); }

/* Dossier */
.authority-toolbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; margin: 44px 0 20px; }
.authority-toolbar fieldset { min-width: 0; padding: 0; margin: 0; border: 0; }
.authority-toolbar legend { margin-bottom: 10px; color: var(--muted); font-family: var(--mono); font-size: 11px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.authority-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.authority-button, .domain-button { min-height: 48px; cursor: pointer; transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease; }
.authority-button { padding: 10px 14px; border: 1px solid var(--ink); border-radius: 999px; background: transparent; font-weight: 800; }
.authority-button:hover, .authority-button:focus-visible { transform: translateY(-2px); }
.authority-button[aria-pressed="true"] { color: var(--paper); background: var(--ink); }
.authority-button:focus-visible, .domain-button:focus-visible, .language-switch:focus-visible, .back-top:focus-visible, a:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; }
.scene { min-height: 420px; padding: 20px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); background: rgba(255, 253, 248, .44); }
.scene__inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(24px, 5vw, 72px); min-height: 378px; }
.scene__map { position: relative; display: grid; min-height: 378px; grid-template-rows: auto 1fr auto; padding: 12px 0 18px; background: transparent; }
.scene__meta { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); font-family: var(--mono); font-size: 10px; text-transform: uppercase; }
.scene__rail { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; align-items: center; padding: 24px 0; }
.scene__node { position: relative; display: grid; min-height: 112px; align-content: center; gap: 7px; padding: 12px 0 14px; border-top: 4px solid transparent; background: transparent; }
.scene__node strong { font-family: var(--serif); font-size: 20px; line-height: 1.02; }
.scene__node small { color: var(--muted); font-family: var(--mono); font-size: 9px; line-height: 1.25; text-transform: uppercase; }
.scene__node--blue { border-top: 5px solid var(--blue); }
.scene__node--red { border-top: 5px solid var(--red); }
.scene__node--ink { border-top: 5px solid var(--ink); }
.scene__connector { height: 2px; background: var(--blue); }
.scene__connector--red { background: var(--red); }
.scene__accountability { display: flex; align-items: center; gap: 10px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 10px; text-transform: uppercase; }
.scene__accountability::before { width: 40px; height: 1px; content: ""; background: var(--red); }
.scene__file { display: grid; align-content: start; gap: 0; padding: 20px 0 0; border-top: 2px solid var(--ink); background: transparent; }
.scene__file-header { display: flex; justify-content: space-between; gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.scene__file-header strong { font-family: var(--serif); font-size: 25px; }
.scene__file-header span { color: var(--red); font-family: var(--mono); font-size: 9px; text-transform: uppercase; }
.file-fragment { display: grid; grid-template-columns: 42px 1fr; gap: 10px; align-items: start; padding: 14px 0; border-bottom: 1px solid var(--line); border-left: 4px solid var(--blue); }
.file-fragment--model { border-left-color: var(--gold); }
.file-fragment--red { border-left-color: var(--red); }
.file-fragment__number { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.file-fragment strong { display: block; font-size: 16px; line-height: 1.05; }
.file-fragment small { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; line-height: 1.25; }
.scene__caption { margin: 0; color: var(--muted); font-family: var(--serif); font-size: 16px; }
.live-status { max-width: 880px; min-height: 50px; margin: 14px 0 0; padding: 13px 16px; border-left: 4px solid var(--red); color: var(--ink-soft); background: transparent; font-family: var(--serif); font-size: 16px; }
.fallback-heading { display: grid; grid-template-columns: .5fr 1.5fr; gap: 24px; align-items: start; padding-bottom: 26px; }
.fallback-heading p { max-width: 720px; margin: 0; color: var(--muted); }
.status-pill { display: inline-flex; min-height: 25px; align-items: center; padding: 5px 8px; border: 1px solid currentColor; border-radius: 999px; color: var(--blue); font-family: var(--mono); font-size: 9px; font-weight: 800; letter-spacing: .05em; line-height: 1.1; text-transform: uppercase; }
.status-pill--red { color: var(--red); }
.status-pill--gold { color: var(--gold); }
.fallback-table-wrap { margin-top: 18px; overflow-x: auto; }
.architecture-table { width: 100%; min-width: 660px; border-collapse: collapse; background: rgba(255, 253, 248, .54); font-family: var(--serif); }
.architecture-table caption { margin-bottom: 10px; color: var(--muted); font-family: var(--mono); font-size: 10px; text-align: left; text-transform: uppercase; }
.architecture-table th, .architecture-table td { padding: 13px 14px; border: 1px solid var(--line); vertical-align: top; text-align: left; }
.architecture-table thead th { color: var(--muted); font-family: var(--mono); font-size: 10px; text-transform: uppercase; }
.architecture-table tbody th { width: 28%; font-size: 15px; }
.architecture-table td { font-size: 15px; }

/* Evidence */
.evidence-register { display: grid; gap: 0; padding: 0; margin: 48px 0 0; border-top: 1px solid #4b5b5c; list-style: none; }
.evidence-row { display: grid; grid-template-columns: minmax(120px, .34fr) minmax(0, 1.66fr); gap: 28px; padding: 24px 0; border-bottom: 1px solid #4b5b5c; }
.evidence-row__mark { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.evidence-row .micro-label { color: #a9c0be; }
.evidence-mark { color: var(--blue-light); font-size: 11px; }
.evidence-row--downstream .evidence-mark { color: #d6ad62; }
.evidence-row--unknown .evidence-mark { color: #eb8a80; }
.evidence-row__copy h3 { margin: 0 0 12px; color: var(--paper); font-family: var(--serif); font-size: clamp(25px, 3vw, 38px); }
.evidence-row__body { max-width: 860px; margin: 0; color: #d6dfda; font-family: var(--serif); font-size: 19px; line-height: 1.34; }
.evidence-row__detail { max-width: 800px; margin: 14px 0 0; color: #a9b9b5; font-size: 13px; line-height: 1.4; }
.evidence-strip { display: grid; grid-template-columns: 1fr 60px 1fr; gap: 16px; align-items: center; margin-top: 22px; padding: 18px; border: 1px solid #4b5b5c; background: rgba(255, 253, 248, .055); }
.evidence-strip > div:not(.strip-arrow) { display: grid; gap: 5px; }
.evidence-strip .micro-label { color: #a9c0be; }
.evidence-strip strong { color: var(--paper); font-family: var(--serif); font-size: clamp(29px, 4vw, 54px); line-height: .9; }
.evidence-strip span:last-child { color: #a9b9b5; font-size: 13px; }
.strip-arrow { color: var(--red); font-size: 32px; text-align: center; }
.section-caveat { max-width: 850px; margin: 22px 0 0; color: #c1ceca; font-family: var(--serif); font-size: 17px; }

/* Transfer */
.transfer-layout { display: grid; grid-template-columns: minmax(220px, .68fr) minmax(0, 1.32fr); gap: clamp(28px, 5vw, 72px); margin-top: 48px; align-items: start; }
.domain-picker { padding: 16px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); background: transparent; }
.domain-buttons { display: grid; gap: 4px; margin-top: 14px; }
.domain-button { display: grid; grid-template-columns: 30px 1fr; gap: 10px; align-items: center; width: 100%; padding: 9px 10px; border: 1px solid transparent; background: transparent; text-align: left; }
.domain-button:hover, .domain-button:focus-visible { border-color: var(--line); background: var(--paper-deep); }
.domain-button[aria-pressed="true"] { color: var(--paper); border-color: var(--ink); background: var(--ink); }
.domain-button__index { color: var(--blue); font-size: 10px; }
.domain-button[aria-pressed="true"] .domain-button__index { color: var(--blue-light); }
.domain-button span:last-child { font-weight: 800; line-height: 1.05; }
.transfer-panel { min-width: 0; padding: 26px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); background: var(--ink); color: var(--paper); }
.transfer-panel__top { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding-bottom: 14px; border-bottom: 1px solid #49595b; }
.transfer-panel .micro-label { color: var(--blue-light); }
.transfer-panel__top strong { font-family: var(--serif); font-size: 31px; text-align: right; }
.transfer-panel > p { max-width: 670px; margin: 28px 0; color: #d6dfda; font-family: var(--serif); font-size: 23px; line-height: 1.23; }
.transfer-evidence { padding: 16px 0 16px 18px; border-left: 4px solid var(--blue-light); background: transparent; }
.transfer-evidence p { margin: 8px 0 0; color: #d6dfda; font-family: var(--mono); font-size: 13px; line-height: 1.45; }
.working-output { margin-top: 18px; padding: 16px 0 0 18px; border-top: 1px solid #49595b; border-left: 4px solid var(--gold); background: transparent; }
.working-output p { margin: 8px 0 0; color: #d6dfda; font-family: var(--serif); font-size: 16px; line-height: 1.4; }
.working-output strong { color: var(--paper); }
.domain-fallback-list { padding: 0; margin: 0; list-style: none; }
.domain-fallback-row { padding: 16px 0; border-bottom: 1px solid var(--line); }
.domain-fallback-row p { margin: 10px 0; font-family: var(--serif); font-size: 19px; }
.domain-fallback-row small { color: var(--muted); font-family: var(--mono); font-size: 11px; line-height: 1.35; }
.question-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 28px; margin: 74px 0 18px; padding-top: 14px; border-top: 2px solid var(--ink); }
.question-heading p { max-width: 620px; margin: 0; color: var(--muted); font-family: var(--serif); font-size: 16px; }
.question-list { padding: 0; margin: 0; border-top: 2px solid var(--ink); list-style: none; }
.question-row { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.question-number { color: var(--red); font-size: 11px; }
.question-row h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 25px; line-height: 1.08; }
.question-row p { max-width: 760px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.4; }
.final-line { max-width: 1060px; margin: 84px 0 0; color: var(--ink); font-family: var(--serif); font-size: clamp(46px, 7vw, 92px); line-height: .92; letter-spacing: -.06em; }

/* Sources */
.source-list { padding: 0; margin: 48px 0 0; border-top: 2px solid var(--ink); list-style: none; }
.source-row { display: grid; grid-template-columns: minmax(150px, .6fr) minmax(0, 1.3fr) auto; gap: 24px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.source-row__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; color: var(--blue); font-size: 10px; }
.source-row h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 26px; }
.source-row p { margin: 0; color: var(--muted); font-family: var(--serif); font-size: 16px; line-height: 1.35; }
.source-row a { display: inline-block; color: var(--red-dark); font-family: var(--mono); font-size: 11px; font-weight: 800; }
.limits-grid { display: grid; grid-template-columns: .58fr 1.42fr; gap: 28px; margin-top: 64px; padding-top: 16px; border-top: 2px solid var(--ink); }
.limits-grid ul { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; }
.limits-grid li { padding-left: 22px; font-family: var(--serif); font-size: 18px; }
.limits-grid li::before { display: inline-block; width: 14px; margin-left: -22px; color: var(--red); content: "×"; font-family: var(--mono); }
.method-note { display: grid; grid-template-columns: .58fr 1.42fr; gap: 28px; margin-top: 32px; padding: 18px 0; border-top: 1px solid var(--line); }
.method-note p { max-width: 760px; margin: 0; color: var(--muted); font-family: var(--serif); font-size: 16px; }

/* Footer and state */
.footer { padding: 28px 0 54px; color: var(--muted); font-size: 10px; }
.footer__inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.footer p { margin: 4px 0; }
.footer a { color: var(--ink); font-weight: 800; }
.footer__links { display: flex; align-items: center; gap: 16px; }
.back-top { display: inline-flex; min-height: 46px; align-items: center; padding: 9px 13px; border: 1px solid var(--ink); border-radius: 999px; background: var(--paper); text-decoration: none; }
.back-top.is-fixed { position: fixed; z-index: 25; right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); box-shadow: 0 8px 18px rgba(23, 37, 42, .18); }
.back-top.is-hidden { visibility: hidden; opacity: 0; pointer-events: none; }
.interactive-only { display: none; }
.has-js .interactive-only { display: block; }
.has-js .no-js-only { display: none !important; }

@media (max-width: 1050px) {
  .hero-grid { grid-template-columns: 1fr; gap: 54px; }
  .hero-file { max-width: 780px; justify-self: end; }
}

@media (max-width: 820px) {
  .shell { width: min(100% - 32px, var(--max)); }
  .section { padding: 72px 0; }
  .topbar__status { display: none; }
  .hero-grid { padding: 74px 0 54px; }
  h1 { font-size: clamp(58px, 16vw, 110px); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .intro-grid, .transfer-layout { grid-template-columns: 1fr; gap: 28px; }
  .evidence-key { margin-top: 42px; }
  .scene__inner { grid-template-columns: 1fr; }
  .scene__map { min-height: 300px; }
  .scene__file { min-height: 0; }
  .question-heading { display: block; }
  .question-heading p { margin-top: 12px; }
  .source-row { grid-template-columns: 1fr 1.4fr; gap: 18px; }
  .limits-grid, .method-note { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 600px) {
  .shell { width: min(100% - 24px, var(--max)); }
  .hero { padding-top: 8px; }
  .topbar { min-height: 48px; }
  .wordmark { max-width: 170px; font-size: 9px; }
  .language-switch { padding: 7px 9px; font-size: 10px; }
  .hero-grid { padding: 62px 0 42px; }
  h1 { font-size: clamp(54px, 18vw, 84px); line-height: .86; }
  .hero-deck { margin-top: 24px; font-size: 23px; }
  .hero-note { align-items: flex-start; font-size: 9px; }
  .hero-file { min-height: 350px; padding: 10px; box-shadow: 10px 10px 0 rgba(180, 70, 61, .34); transform: none; }
  .hero-file__paper { min-height: 270px; padding: 44px 11px 18px; }
  .hero-file__top, .hero-file__bottom { font-size: 8px; }
  .hero-file__route { grid-template-columns: 1fr; gap: 7px; }
  .route-node { min-height: 63px; grid-template-columns: 30px 1fr; align-items: center; padding: 9px; font-size: 15px; }
  .route-node i { grid-row: 1; }
  .route-line { width: 2px; height: 12px; margin-left: 20px; }
  .hero-stamp { top: 47%; right: 8%; width: 78px; height: 78px; font-size: 8px; }
  .hero-stamp b { font-size: 10px; }
  .hero-file__caption { margin-top: 12px; font-size: 9px; }
  .hero-stats { gap: 6px; }
  .hero-stat { min-height: 130px; padding: 12px; }
  .hero-stat strong { font-size: 31px; }
  .hero-stat span { font-size: 12px; }
  .hero-stat small { margin-top: 12px; font-size: 8px; }
  .scroll-cue { margin-top: 42px; }
  h2 { font-size: 45px; }
  .lead { font-size: 23px; }
  .section-lead { font-size: 19px; }
  .evidence-key { display: grid; gap: 12px; margin-top: 35px; }
  .authority-toolbar { display: block; }
  .authority-toolbar > .status-pill { margin-top: 16px; }
  .authority-buttons { display: grid; }
  .authority-button { width: 100%; border-radius: 8px; text-align: left; }
  .scene { min-height: 0; padding: 8px 0; }
  .scene__inner { gap: 8px; min-height: 0; }
  .scene__map { min-height: 0; padding: 12px 0; }
  .scene__rail { grid-template-columns: 1fr; gap: 7px; padding: 20px 0; }
  .scene__map::before { top: 75px; right: auto; bottom: 58px; left: 30px; }
  .scene__node { min-height: 76px; grid-template-columns: 1fr 1fr; align-items: center; padding: 10px; }
  .scene__node strong { font-size: 18px; }
  .scene__connector { width: 2px; height: 12px; margin-left: 29px; }
  .scene__accountability { display: block; line-height: 1.35; }
  .scene__accountability::before { display: inline-block; width: 20px; margin-right: 6px; vertical-align: middle; }
  .scene__file { padding: 14px 0 0; }
  .scene__file-header strong { font-size: 21px; }
  .file-fragment { grid-template-columns: 32px 1fr; padding: 12px 0; }
  .fallback-heading { display: block; }
  .fallback-heading p { margin-top: 12px; }
  .evidence-row { grid-template-columns: 1fr; gap: 12px; }
  .evidence-row__mark { display: block; }
  .evidence-row__mark .micro-label { margin-top: 5px; }
  .evidence-strip { grid-template-columns: 1fr; gap: 10px; }
  .strip-arrow { transform: rotate(90deg); }
  .question-row { grid-template-columns: 38px 1fr; gap: 12px; }
  .question-row h3 { font-size: 23px; }
  .source-row { grid-template-columns: 1fr; gap: 10px; }
  .final-line { margin-top: 62px; font-size: 48px; }
  .footer__inner { display: block; }
  .footer__links { justify-content: space-between; margin-top: 20px; }
}

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