:root {
  --night: #101827;
  --night-2: #172235;
  --ink: #182133;
  --ink-soft: #48566b;
  --paper: #fbf8f1;
  --paper-2: #f1eadc;
  --white: #ffffff;
  --gold: #8b6514;
  --gold-light: #e4cf96;
  --teal: #156f6a;
  --teal-dark: #0c514d;
  --teal-light: #cfe4df;
  --line: rgba(24, 33, 51, 0.16);
  --line-dark: rgba(255, 255, 255, 0.16);
  --serif: 'Source Serif 4', Georgia, serif;
  --sans: 'Outfit', Arial, sans-serif;
  --mono: 'JetBrains Mono', Consolas, monospace;
  --shell: 1180px;
  --radius: 18px;
  --shadow: 0 26px 70px rgba(16, 24, 39, 0.14);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.58; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
body, button, input { font-family: var(--sans); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 4px; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 650; letter-spacing: -0.03em; line-height: 1.02; }
h1 { font-size: clamp(4rem, 8.4vw, 7.8rem); margin-bottom: 28px; max-width: 900px; }
h2 { font-size: clamp(2.5rem, 5vw, 4.8rem); margin-bottom: 22px; }
h3 { font-size: clamp(1.45rem, 2.5vw, 2rem); }
em { color: var(--gold); font-weight: 600; }

:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 1000; top: 10px; left: 10px; padding: 12px 16px; background: var(--white); color: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.gh-shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.eyebrow, .mono-label { margin-bottom: 12px; color: var(--teal); font-family: var(--mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; }
.section-lead, .hero-lead { color: var(--ink-soft); font-size: clamp(1.13rem, 1.8vw, 1.38rem); line-height: 1.62; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 20px; border: 1px solid transparent; border-radius: 999px; font-weight: 700; text-decoration: none; }
.button.primary { background: var(--night); color: var(--white); }
.button.primary:hover { background: var(--teal-dark); }
.button.primary.light { background: var(--white); color: var(--night); }
.button.text { border-color: var(--line); color: var(--ink); }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.gh-header { position: sticky; z-index: 100; top: 0; display: flex; min-height: 76px; padding: 12px max(24px, calc((100vw - var(--shell)) / 2)); align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: 0; text-decoration: none; }
.brand img { flex: 0 0 auto; border-radius: 4px; }
.brand span { display: grid; line-height: 1.05; }
.brand strong { font-size: 1rem; letter-spacing: 0.1em; text-transform: uppercase; }
.brand small { margin-top: 5px; color: var(--ink-soft); font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.12em; text-transform: uppercase; }
.primary-nav { display: flex; align-items: center; gap: 24px; }
.primary-nav a { min-width: 45px; min-height: 44px; display: inline-flex; align-items: center; font-size: 0.92rem; font-weight: 600; text-decoration: none; }
.primary-nav a:hover { color: var(--teal); }
.primary-nav .nav-action { padding: 9px 17px; border-radius: 999px; background: var(--night); color: var(--white); }
.menu-button { display: none; width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--ink); }
.menu-button span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.menu-button i { display: block; width: 20px; height: 1px; margin: 5px auto; background: currentColor; }

.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr); gap: clamp(48px, 8vw, 110px); padding-block: clamp(80px, 10vw, 150px) 96px; align-items: center; }
.hero-copy { min-width: 0; }
.hero-lead { max-width: 760px; }
.identity-line { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 56px 0 0; border: 1px solid var(--line); background: var(--line); }
.identity-line div { padding: 15px 18px; background: var(--paper); }
.identity-line dt { color: var(--ink-soft); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; }
.identity-line dd { margin: 4px 0 0; font-weight: 700; }
.hero-ledger { position: relative; min-width: 0; padding: 30px; border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow); }
.ledger-mark { position: absolute; top: -42px; right: 20px; width: 112px; background: var(--night); }
.hero-ledger h2 { max-width: 320px; margin: 54px 0 36px; font-size: clamp(2.3rem, 4vw, 3.8rem); }
.hero-ledger ol { margin: 0; padding: 0; list-style: none; }
.hero-ledger li { display: grid; grid-template-columns: 34px 90px 1fr; gap: 10px; padding: 15px 0; border-top: 1px solid var(--line); align-items: baseline; }
.hero-ledger li > span { font-family: var(--mono); font-size: 0.7rem; }
.hero-ledger li > b { font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.06em; }
.hero-ledger li > small { color: var(--ink-soft); }
.ledger-foot { margin: 18px 0 0; color: var(--teal-dark); font-family: var(--mono); font-size: 0.72rem; }

.buoyancy-section { padding-block: 104px; background: var(--night); color: var(--white); }
.buoyancy-section .eyebrow, .buoyancy-section .mono-label { color: var(--teal-light); }
.buoyancy-section em { color: var(--gold-light); }
.buoyancy-intro { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(36px, 8vw, 110px); align-items: end; }
.buoyancy-intro .section-lead { color: rgba(255, 255, 255, 0.72); }
.waterline-layout { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 34px; margin-top: 64px; align-items: stretch; }
.waterline-diagram { min-width: 0; border: 1px solid var(--line-dark); background: var(--night-2); }
.waterline-question { padding: 24px; border-bottom: 1px solid var(--line-dark); }
.waterline-question h3 { margin: 0; max-width: 620px; }
.waterline-stack { display: grid; }
.water-layer { display: grid; grid-template-columns: 150px 1fr 1.2fr; min-height: 82px; padding: 17px 22px; align-items: center; gap: 18px; border: 0; border-bottom: 1px solid var(--line-dark); background: transparent; color: var(--white); text-align: left; }
.water-layer:last-child { border-bottom: 0; }
.water-layer > span { color: rgba(255,255,255,0.56); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
.water-layer > small { color: rgba(255,255,255,0.66); }
.water-layer:hover, .water-layer.is-active { background: rgba(117, 212, 202, 0.09); }
.water-layer.waterline-rule { border-block: 2px solid var(--teal-light); }
.water-layer.below { background-image: linear-gradient(90deg, rgba(21,111,106,0.11), transparent); }
.water-layer.ballast { background: rgba(228, 207, 150, 0.08); }
.buoyancy-readout { display: flex; min-width: 0; align-items: stretch; }
.buoyancy-panel { width: 100%; padding: 36px; border: 1px solid var(--line-dark); background: var(--paper); color: var(--ink); }
.js .buoyancy-panel:not(.is-active) { display: none; }
.buoyancy-panel .mono-label { color: var(--teal-dark); }
.buoyancy-panel h3 { font-size: clamp(2rem, 3.8vw, 3.2rem); }
.buoyancy-panel p { color: var(--ink-soft); }
.buoyancy-panel a { color: var(--teal-dark); font-weight: 700; }
.noscript-note { padding: 12px; border: 1px dashed currentColor; font-size: 0.85rem; }

.paths-section { padding-block: 120px; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr); gap: 50px; align-items: end; }
.section-heading > p:last-child { color: var(--ink-soft); font-size: 1.15rem; }
.section-heading.compact { display: block; max-width: 850px; }
.path-index { margin: 54px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.path-index li { display: grid; grid-template-columns: 62px 1fr 1fr 250px; gap: 28px; min-height: 175px; padding: 30px 0; border-bottom: 1px solid var(--line); align-items: start; }
.path-number { color: var(--gold); font-family: var(--mono); }
.path-index h3 { margin-bottom: 0; }
.path-index > li > p { color: var(--ink-soft); }
.path-actions { display: grid; gap: 8px; }
.path-actions a, .path-actions button { display: inline-flex; min-height: 44px; padding: 9px 0; align-items: center; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--ink); font-weight: 700; text-align: left; text-decoration: none; }
.path-actions a:hover, .path-actions button:hover { color: var(--teal); }

.diagnostic-section { padding-block: 110px; background: var(--paper-2); }
.diagnostic-layout { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: clamp(42px, 8vw, 100px); }
.diagnostic-intro { position: sticky; top: 116px; align-self: start; }
.diagnostic-intro p:not(.eyebrow) { color: var(--ink-soft); }
.diagnostic-intro a { color: var(--teal-dark); font-weight: 700; }
.diagnostic-workbench { min-width: 0; border: 1px solid var(--line); background: var(--night); color: var(--white); }
.diagnostic-tabs { display: grid; grid-template-columns: repeat(6, 1fr); border-bottom: 1px solid var(--line-dark); }
.diagnostic-tabs button { display: grid; min-width: 0; min-height: 70px; padding: 12px 10px; border: 0; border-right: 1px solid var(--line-dark); background: transparent; color: rgba(255,255,255,0.65); font-size: 0.76rem; text-align: left; }
.diagnostic-tabs button:last-child { border-right: 0; }
.diagnostic-tabs button span { font-family: var(--mono); font-size: 0.62rem; }
.diagnostic-tabs button[aria-selected="true"] { background: var(--teal); color: var(--white); }
.diagnostic-panels { min-height: 430px; }
.diagnostic-panel { padding: clamp(34px, 7vw, 78px); }
.js .diagnostic-panel:not(.is-active) { display: none; }
.diagnostic-panel .mono-label { color: var(--teal-light); }
.diagnostic-panel h3 { max-width: 720px; font-size: clamp(2.5rem, 5vw, 4.7rem); }
.diagnostic-panel p:last-child { max-width: 680px; color: rgba(255,255,255,0.72); font-size: 1.12rem; }

.deliverables-section { padding-block: 100px; }
.deliverable-rail { display: flex; flex-wrap: wrap; gap: 10px; margin: 42px 0 0; padding: 0; list-style: none; }
.deliverable-rail li { display: inline-flex; min-height: 48px; padding: 12px 17px; align-items: center; gap: 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--white); font-weight: 650; }
.deliverable-rail span { color: var(--teal); font-family: var(--mono); font-size: 0.7rem; }

.proof-section { padding-block: 112px; background: var(--white); }
.proof-layout { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: 60px; }
.proof-heading { grid-row: span 2; }
.proof-heading > p:not(.eyebrow) { color: var(--ink-soft); }
.ballast-caption { padding-left: 16px; border-left: 3px solid var(--gold); font-family: var(--serif); font-size: 1.2rem; }
.proof-signals { border-top: 1px solid var(--line); }
.proof-signals article { display: grid; grid-template-columns: 104px 170px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: start; }
.signal-state { display: inline-flex; width: fit-content; min-height: 29px; padding: 5px 9px; align-items: center; border: 1px solid var(--line); border-radius: 999px; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; }
.signal-state.is-reachable { border-color: var(--teal); color: var(--teal-dark); }
.signal-state.is-captured { border-color: var(--gold); color: var(--gold); }
.signal-state.is-unavailable { border-color: var(--gold); color: var(--gold); }
.proof-signals strong { font-size: 1.05rem; }
.proof-signals time { grid-column: 3; color: var(--ink-soft); font-family: var(--mono); font-size: 0.66rem; overflow-wrap: anywhere; }
.proof-signals small { grid-column: 3; color: var(--ink-soft); }
.proof-signals a { grid-column: 3; color: var(--teal-dark); font-weight: 700; }
.status-language { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; margin: 0; background: var(--line); border: 1px solid var(--line); }
.status-language div { padding: 18px; background: var(--paper); }
.status-language dt { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; }
.status-language dd { margin: 8px 0 0; color: var(--ink-soft); font-size: 0.9rem; }

.dreameros-boundary { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 70px; padding-block: 100px; border-bottom: 1px solid var(--line); }
.dreameros-boundary > div:last-child { padding-left: 28px; border-left: 1px solid var(--line); color: var(--ink-soft); font-size: 1.12rem; }
.dreameros-boundary a { color: var(--teal-dark); font-weight: 700; }

.response-section { padding-block: 90px; background: var(--teal-dark); color: var(--white); }
.response-section .eyebrow { color: var(--teal-light); }
.response-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 50px; align-items: start; }
.response-layout > ol { margin: 0; padding: 0; list-style: none; }
.response-layout li { display: grid; grid-template-columns: 42px 170px 1fr; gap: 14px; padding: 15px 0; border-top: 1px solid rgba(255,255,255,0.2); }
.response-layout li span { font-family: var(--mono); font-size: 0.7rem; }
.response-layout li small { color: rgba(255,255,255,0.72); }
.response-layout > .button { grid-column: 2; justify-self: start; }

.library-section { padding-block: 115px; }
.library-heading { display: grid; grid-template-columns: 1fr 380px; gap: 54px; align-items: end; }
.library-heading > div > p:last-child { color: var(--ink-soft); }
.search-label { display: grid; gap: 8px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; }
.search-label input { width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 0; background: var(--white); color: var(--ink); }
.library-controls { display: flex; flex-wrap: wrap; gap: 8px; margin: 36px 0 16px; }
.library-controls button { min-height: 44px; padding: 9px 15px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink); }
.library-controls button.is-active { background: var(--night); color: var(--white); }
.results-line { color: var(--ink-soft); font-size: 0.92rem; }
.evidence-table { margin-top: 30px; border-top: 1px solid var(--line); }
.evidence-row { display: grid; grid-template-columns: 125px minmax(160px, 0.8fr) minmax(170px, 0.9fr) minmax(250px, 1.5fr) 60px; gap: 20px; min-width: 0; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: start; }
.evidence-row > * { min-width: 0; }
.evidence-row h3 { margin: 0; font-family: var(--sans); font-size: 1rem; letter-spacing: 0; }
.evidence-row p { margin: 0; color: var(--ink-soft); font-size: 0.9rem; }
.evidence-row > a { color: var(--teal-dark); font-weight: 700; }
.evidence-door-note { color: var(--ink-soft); font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; }
.evidence-status, .evidence-task { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.06em; text-transform: uppercase; }
.evidence-task { color: var(--ink-soft); }
.evidence-header { color: var(--ink-soft); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; }
.empty-state { padding: 22px; border: 1px solid var(--line); }

.human-section { display: grid; grid-template-columns: 210px 1fr 230px; gap: 52px; padding-block: 100px; border-top: 1px solid var(--line); align-items: center; }
.human-mark { position: relative; display: grid; place-items: center; min-height: 210px; background: var(--night); }
.human-mark img { width: 160px; }
.human-mark span { position: absolute; bottom: 12px; color: var(--white); font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.12em; }
.human-copy p:last-child { color: var(--ink-soft); }
.human-links { display: grid; }
.human-links a { min-height: 48px; padding: 12px 0; border-top: 1px solid var(--line); font-weight: 700; text-decoration: none; }
.human-links a:last-child { border-bottom: 1px solid var(--line); }

.closing-section { padding-block: 90px; background: var(--night); color: var(--white); }
.closing-section .eyebrow { color: var(--teal-light); }
.closing-layout { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 70px; align-items: end; }
.closing-layout > div:last-child { color: rgba(255,255,255,0.72); }
.gh-footer { display: grid; grid-template-columns: 1fr auto; gap: 28px; padding-block: 46px; align-items: center; }
.gh-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.gh-footer nav a { display: inline-flex; min-width: 45px; min-height: 44px; padding-inline: 5px; align-items: center; font-size: 0.85rem; }
.gh-footer > p { grid-column: 1 / -1; margin: 0; color: var(--ink-soft); font-family: var(--mono); font-size: 0.65rem; }

/* Direction review mode: hierarchy and spacing remain, color cannot rescue it. */
.wireframe { --night: #111111; --night-2: #242424; --ink: #161616; --ink-soft: #555555; --paper: #f4f4f1; --paper-2: #e8e8e5; --gold: #555555; --gold-light: #d6d6d0; --teal: #3b3b3b; --teal-dark: #202020; --teal-light: #d7d7d2; --line: rgba(0,0,0,0.2); --line-dark: rgba(255,255,255,0.22); }
.wireframe img { filter: grayscale(1); }

/* Direction B is deliberately editorial and story-led. */
.atlas-page { background: #f3f3ef; color: #151515; }
.atlas-header { display: flex; width: min(calc(100% - 48px), 1200px); margin: 0 auto; padding: 22px 0; justify-content: space-between; border-bottom: 1px solid #bcbcb7; }
.atlas-main { width: min(calc(100% - 48px), 1200px); margin: 0 auto; }
.atlas-hero { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 60px; padding: 100px 0 80px; }
.atlas-hero h1 { font-size: clamp(4rem, 9vw, 9rem); }
.atlas-photo { min-height: 520px; display: grid; place-items: end start; padding: 24px; background: #1a1a1a url('/assets/dreamerai-mark-header.webp') center/58% no-repeat; color: white; }
.atlas-story { display: grid; grid-template-columns: 160px 1fr 1fr; gap: 36px; padding: 42px 0; border-top: 1px solid #bcbcb7; }
.atlas-story span { font-family: var(--mono); font-size: 0.7rem; }
.atlas-story h2 { font-size: clamp(2rem, 4vw, 4rem); }
.atlas-story p { color: #555; }
.atlas-index { padding: 80px 0; border-top: 4px solid #151515; }
.atlas-index .evidence-row { grid-template-columns: 120px 1fr 1.5fr 60px; }
.atlas-index .evidence-row .evidence-task { display: none; }
.atlas-footer { display: flex; justify-content: space-between; padding: 36px 0; border-top: 1px solid #bcbcb7; }

@media (max-width: 1040px) {
  .primary-nav { gap: 14px; }
  .primary-nav > a:not(.nav-action) { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-ledger { max-width: 700px; }
  .path-index li { grid-template-columns: 54px 0.8fr 1.2fr; }
  .path-actions { grid-column: 2 / -1; grid-template-columns: 1fr 1fr; }
  .proof-layout { grid-template-columns: 1fr; }
  .proof-heading { grid-row: auto; max-width: 760px; }
  .status-language { grid-template-columns: repeat(3, 1fr); }
  .evidence-row { grid-template-columns: 110px minmax(150px, 0.8fr) minmax(150px, 0.8fr) 1.4fr 52px; gap: 14px; }
  .human-section { grid-template-columns: 180px 1fr; }
  .human-links { grid-column: 2; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 72px; }
  body { font-size: 16px; }
  .gh-shell { width: min(calc(100% - 32px), var(--shell)); }
  h1 { font-size: clamp(3.6rem, 16vw, 5.4rem); }
  h2 { font-size: clamp(2.35rem, 11vw, 3.5rem); }
  .gh-header { min-height: 68px; padding-inline: 16px; }
  .brand small { max-width: 205px; font-size: 0.5rem; }
  .menu-button { display: block; flex: 0 0 48px; }
  .primary-nav { position: absolute; top: 68px; left: 0; right: 0; display: none; padding: 12px 16px 18px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 18px 40px rgba(16,24,39,0.12); }
  .primary-nav.is-open { display: grid; }
  .primary-nav > a:not(.nav-action) { display: flex; }
  .primary-nav a { padding: 4px 0; }
  .primary-nav .nav-action { justify-content: center; margin-top: 6px; }
  .hero { grid-template-columns: minmax(0, 1fr); padding-block: 72px 72px; gap: 82px; }
  .hero-ledger { padding: 24px 18px; }
  .ledger-mark { width: 84px; top: -32px; }
  .hero-ledger h2 { margin-top: 40px; }
  .hero-ledger li { grid-template-columns: 30px 75px minmax(0,1fr); }
  .identity-line { grid-template-columns: 1fr; }
  .buoyancy-section { padding-block: 76px; }
  .buoyancy-intro, .waterline-layout, .section-heading, .diagnostic-layout, .proof-layout, .dreameros-boundary, .response-layout, .library-heading, .human-section, .closing-layout, .atlas-hero { grid-template-columns: minmax(0, 1fr); }
  .waterline-layout { margin-top: 42px; }
  .water-layer { grid-template-columns: minmax(0, 1fr); gap: 4px; min-height: 104px; }
  .water-layer > small { margin-top: 5px; }
  .buoyancy-panel { padding: 28px 22px; }
  .paths-section { padding-block: 82px; }
  .path-index li { grid-template-columns: 42px minmax(0, 1fr); gap: 14px; }
  .path-index > li > p, .path-actions { grid-column: 2; }
  .path-actions { grid-template-columns: minmax(0, 1fr); }
  .diagnostic-section { padding-block: 76px; }
  .diagnostic-intro { position: static; }
  .diagnostic-tabs { grid-template-columns: repeat(3, 1fr); }
  .diagnostic-tabs button:nth-child(3) { border-right: 0; }
  .diagnostic-tabs button:nth-child(-n+3) { border-bottom: 1px solid var(--line-dark); }
  .diagnostic-panels { min-height: 460px; }
  .diagnostic-panel { padding: 36px 24px; }
  .proof-signals article { grid-template-columns: 100px minmax(0,1fr); }
  .proof-signals small, .proof-signals a, .proof-signals time { grid-column: 2; }
  .status-language { grid-template-columns: 1fr; }
  .dreameros-boundary > div:last-child { padding: 26px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .response-layout > .button { grid-column: 1; }
  .response-layout li { grid-template-columns: 34px minmax(0, 1fr); }
  .response-layout li small { grid-column: 2; }
  .library-section { padding-block: 82px; }
  .library-controls { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); }
  .library-controls button { width: 100%; }
  .evidence-header { display: none; }
  .evidence-row { grid-template-columns: minmax(0, 1fr) 58px; gap: 8px 14px; padding: 20px 0; }
  .evidence-row .evidence-status, .evidence-row .evidence-task, .evidence-row p { grid-column: 1; }
  .evidence-row h3 { grid-column: 1; font-size: 1.08rem; }
  .evidence-row > a { grid-column: 2; grid-row: 1 / span 4; align-self: center; }
  .human-section { padding-block: 78px; }
  .human-mark { min-height: 250px; }
  .human-links { grid-column: 1; }
  .gh-footer { grid-template-columns: 1fr; }
  .gh-footer nav { justify-content: flex-start; }
  .atlas-story { grid-template-columns: 50px minmax(0,1fr); }
  .atlas-story p { grid-column: 2; }
  .atlas-index .evidence-row { grid-template-columns: 1fr 56px; }
  .atlas-footer { display: grid; gap: 12px; }
}

@media (max-width: 420px) {
  .gh-shell { width: min(calc(100% - 24px), var(--shell)); }
  h1 { font-size: clamp(3.1rem, 15vw, 4.25rem); }
  .hero-ledger li { grid-template-columns: 28px minmax(0, 1fr); }
  .hero-ledger li small { grid-column: 2; }
  .diagnostic-tabs { grid-template-columns: repeat(2, 1fr); }
  .diagnostic-tabs button:nth-child(odd) { border-right: 1px solid var(--line-dark); }
  .diagnostic-tabs button:nth-child(even) { border-right: 0; }
  .diagnostic-tabs button:nth-child(-n+4) { border-bottom: 1px solid var(--line-dark); }
  .library-controls { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}