/* Elderfield Guru — base stylesheet.
   Token block = 02-design/20260913-welcome-to-elderfield/tokens_Welcome_to_Elderfield.css
   (verbatim), then the Night Survey / Illustrated Field Dossier visual system from
   02-design/20260913-welcome-to-elderfield/visual-system.md.
   Class hooks consumed by check-geo.mjs / capture.cjs (h1, .btn, .btn.primary,
   details, .table-wrap, footer <strong>, byline, <time>) must survive edits.
   Fonts are local-only stacks (no Google Fonts CDN) so the privacy page's
   "only Google Analytics is configured" statement stays accurate. */

:root {
  color-scheme: dark;
  --surface-page: #0b0710;
  --surface-panel: #171020;
  --surface-raised: #241531;
  --surface-paper: #f2ead7;
  --surface-acid: #d8ff4d;
  --surface-danger: #ff5a61;
  --ink-primary: #f8f1df;
  --ink-secondary: #c8b9cd;
  --ink-dark: #211725;
  --ink-on-acid: #171020;
  --ink-on-danger: #17070a;
  --brand: #d8ff4d;
  --brand-text: #d8ff4d;
  --accent: #8e5bff;
  --state-verified: #9ced6a;
  --state-caution: #ffd166;
  --state-absent: #ff8b91;
  --border-subtle: #4f3c5e;
  --border-strong: #d8ff4d;
  --shadow-ink: rgba(3, 1, 5, 0.72);
  --shadow-acid: rgba(216, 255, 77, 0.2);

  --font-display: "Arial Black", "Helvetica Neue", Arial, sans-serif;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --text-display: clamp(3.4rem, 6.4vw, 6.25rem);
  --text-h1: clamp(2.5rem, 5.2vw, 5rem);
  --text-h2: clamp(1.7rem, 3vw, 2.55rem);
  --text-h3: 1.05rem;
  --text-body: 1rem;
  --text-small: 0.78rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 7rem;

  --content-wide: 76rem;
  --content-read: 48rem;
  --radius-small: 0.35rem;
  --radius-medium: 0.8rem;
  --radius-large: 1.4rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink-primary);
  background:
    radial-gradient(circle at 76% 6%, rgba(142, 91, 255, .16), transparent 26rem),
    radial-gradient(circle at 12% 62%, rgba(255, 90, 97, .07), transparent 22rem),
    var(--surface-page);
  font: 400 var(--text-body)/1.65 var(--font-body);
}
a { color: inherit; }
img { max-width: 100%; }
h1, h2, h3 { overflow-wrap: break-word; }

/* Visible focus reuses --border-strong with a 2px offset (visual-system §a11y). */
a:focus-visible, summary:focus-visible, .table-wrap:focus-visible, .route-card:focus-visible {
  outline: 2px solid var(--border-strong);
  outline-offset: 2px;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 99;
  padding: .7rem 1rem;
  color: var(--ink-on-acid);
  background: var(--surface-acid);
  font: 700 .78rem/1 var(--font-mono);
  text-transform: uppercase;
}
.skip-link:focus { left: .5rem; top: .5rem; }

.wrap { width: min(calc(100% - 2rem), var(--content-wide)); margin-inline: auto; }

/* ---------- publisher bar ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(11, 7, 16, .92);
  backdrop-filter: blur(14px);
}
.site-header .wrap {
  min-height: 4.75rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-6);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  font: 900 .92rem/1 var(--font-display);
  letter-spacing: -.02em;
  text-transform: uppercase;
}
.brand:hover { text-decoration: none; }
.brand small { display: block; margin-top: .18rem; color: var(--ink-secondary); font: 600 .6rem/1 var(--font-mono); letter-spacing: .28em; }
.brand-eye {
  display: grid;
  place-items: center;
  width: 2.1rem;
  aspect-ratio: 1;
  border: 2px solid var(--brand);
  border-radius: 50% 8% 50% 8%;
  transform: rotate(45deg);
  box-shadow: 0 0 1.2rem var(--shadow-acid);
}
.brand-eye::after {
  content: "";
  width: .6rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 .2rem var(--surface-page);
}
.nav-links { display: flex; justify-content: center; gap: var(--space-5); }
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink-secondary);
  font: 600 var(--text-small)/1 var(--font-mono);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.nav-links a:hover { color: var(--brand); text-decoration: none; }

/* ---------- VerificationStamp ---------- */
.vstamp {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  padding: .45rem .7rem;
  border: 1px solid currentColor;
  color: var(--state-verified);
  background: rgba(23, 16, 32, .55);
  font: 600 .68rem/1.25 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  text-align: left;
}
.vstamp-dot { width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; flex: none; }
.vstamp--caution { color: var(--state-caution); }
.vstamp--limited { color: var(--state-absent); }
.vstamp--inline { margin: var(--space-4) 0 0; }
.status-pill { max-width: 15rem; }

/* ---------- shared type ---------- */
.eyebrow, .section-kicker, .card-kicker, .label {
  color: var(--brand);
  font: 600 .76rem/1.4 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .14em;
}
.section-head { max-width: 47rem; margin-bottom: var(--space-7); }
.section-head h2 { margin: .65rem 0 .8rem; font: 900 var(--text-h2)/1.02 var(--font-display); letter-spacing: -.045em; text-transform: uppercase; }
.section-head p { color: var(--ink-secondary); }
h2 { font: 900 var(--text-h2)/1.05 var(--font-display); letter-spacing: -.04em; text-transform: uppercase; }
h3 { font: 900 var(--text-h3)/1.25 var(--font-display); text-transform: uppercase; letter-spacing: -.02em; }

.btn {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .75rem 1.1rem;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--brand-text);
  text-decoration: none;
  font: 700 .78rem/1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  transition: transform .18s ease, box-shadow .18s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: .35rem .35rem 0 #4c2575; text-decoration: none; }
.btn.primary { color: var(--ink-on-acid); background: var(--surface-acid); }
.btn.tertiary { color: var(--ink-primary); border-color: var(--border-subtle); background: var(--surface-panel); }
.buttons { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* ---------- home: split hero ---------- */
.hero { display: grid; align-items: center; padding: var(--space-7) 0 var(--space-8); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(23rem, .88fr); gap: clamp(2rem, 7vw, 7rem); align-items: center; }
.game-identity { margin: .65rem 0 0; font: 700 .8rem/1.4 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
.hero h1 { margin: .75rem 0 1.2rem; max-width: 12ch; font: 900 var(--text-display)/.85 var(--font-display); letter-spacing: -.07em; text-transform: uppercase; }
.hero h1 span { display: block; color: var(--brand); transform: skew(-4deg); text-shadow: .09em .09em 0 #4c2575; }
.hero-copy { max-width: 39rem; margin: 0; color: var(--ink-secondary); font-size: clamp(1rem, 1.4vw, 1.18rem); }
.hero .buttons { margin-top: var(--space-6); }
.hero-stats { display: flex; flex-wrap: wrap; gap: .55rem 1.15rem; margin: 1.6rem 0 0; padding: 0; color: var(--ink-secondary); list-style: none; font: 600 .7rem/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
.hero-stats li::before { content: "◆"; margin-right: .45rem; color: var(--brand); }

/* ---------- home: original night signal board (pure HTML/CSS, no game art) ---------- */
.signal-board {
  position: relative;
  min-height: 31rem;
  border: 1px solid var(--border-subtle);
  background:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px),
    var(--surface-panel);
  background-size: 2rem 2rem;
  overflow: hidden;
  transform: rotate(1.2deg);
  box-shadow: 1.1rem 1.1rem 0 rgba(79, 60, 94, .28);
}
.signal-board .moon { position: absolute; right: 8%; top: 8%; width: 10rem; aspect-ratio: 1; border-radius: 50%; background: var(--accent); box-shadow: 0 0 4rem rgba(142, 91, 255, .5); }
.signal-board .moon::after { content: ""; position: absolute; inset: 19% 8% 8% 27%; border-radius: 50%; background: var(--surface-panel); }
.signal-board .tower { position: absolute; left: 18%; bottom: 0; width: 7.5rem; height: 18rem; background: #08060b; clip-path: polygon(30% 0, 70% 0, 76% 15%, 88% 20%, 84% 100%, 16% 100%, 12% 20%, 24% 15%); }
.signal-board .tower::before { content: ""; position: absolute; inset: 2.7rem 2.8rem 0; background: repeating-linear-gradient(to bottom, var(--surface-danger) 0 .55rem, transparent .55rem 2.2rem); opacity: .9; }
.signal-board .tentacle { position: absolute; width: 12rem; height: 24rem; border: 1.35rem solid var(--surface-danger); border-color: var(--surface-danger) transparent transparent var(--surface-danger); border-radius: 70% 0 0 0; filter: drop-shadow(.5rem .5rem 0 #3b1426); }
.signal-board .tentacle-a { right: -4rem; bottom: -10rem; transform: rotate(-18deg); }
.signal-board .tentacle-b { left: -5rem; bottom: -14rem; transform: rotate(28deg) scale(.7); }
.signal-board .scribble { position: absolute; right: 5%; bottom: 7%; max-width: 13rem; margin: 0; color: var(--ink-primary); font: 900 1.7rem/.92 var(--font-display); text-transform: uppercase; transform: rotate(-5deg); }
.signal-board .scribble span { color: var(--brand); }
.signal-board .board-label { position: absolute; top: 1rem; left: 1rem; padding: .45rem .65rem; color: var(--ink-on-danger); background: var(--surface-danger); font: 700 .68rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .1em; }

/* ---------- home: release / status strip ---------- */
.launch-strip { border-block: 1px solid var(--border-subtle); background: var(--surface-panel); }
.launch-grid { min-height: 6rem; display: grid; grid-template-columns: auto repeat(4, 1fr); gap: var(--space-5); align-items: center; }
.launch-grid strong { display: block; font: 700 .9rem/1.2 var(--font-mono); color: var(--ink-primary); }
.launch-grid span { color: var(--ink-secondary); font-size: .82rem; }
.launch-grid .alarm { color: var(--ink-on-danger); background: var(--surface-danger); padding: .65rem .75rem; font: 800 .72rem/1 var(--font-mono); transform: rotate(-2deg); }

/* ---------- sections ---------- */
.section { padding: var(--space-9) 0; }
.section--panel { border-block: 1px solid var(--border-subtle); background: var(--surface-panel); }

/* ---------- RouteCard ---------- */
.route-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--space-4); }
.route-card {
  position: relative;
  display: block;
  min-height: 14rem;
  padding: var(--space-5);
  border: 1px solid var(--border-subtle);
  background: var(--surface-panel);
  overflow: hidden;
  text-decoration: none;
}
.route-card:nth-child(1), .route-card:nth-child(4) { grid-column: span 7; }
.route-card:nth-child(2), .route-card:nth-child(3) { grid-column: span 5; }
.route-card::after { content: attr(data-index); position: absolute; right: .7rem; bottom: -.7rem; color: rgba(216, 255, 77, .09); font: 900 6rem/1 var(--font-display); pointer-events: none; }
.route-card:hover { border-color: var(--brand); text-decoration: none; }
.route-card h3 { margin: .7rem 0 .35rem; font: 900 1.3rem/1.12 var(--font-display); text-transform: uppercase; }
.route-card p { max-width: 35rem; margin: 0; color: var(--ink-secondary); }
.route-card .card-path { display: inline-block; margin-top: 1.25rem; color: var(--brand); font: 600 .75rem/1 var(--font-mono); }
.route-card--acid { color: var(--ink-on-acid); background: var(--surface-acid); border-color: var(--surface-acid); }
.route-card--acid p, .route-card--acid .card-kicker, .route-card--acid .card-path { color: var(--ink-on-acid); }
.route-card--acid::after { color: rgba(23, 16, 32, .12); }

/* ---------- home: about + fact grid ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(26rem, .85fr); gap: var(--space-8); align-items: start; }
.about-copy h2 { margin: .65rem 0 1rem; }
.about-copy p { max-width: var(--content-read); color: var(--ink-secondary); }
.text-link { display: inline-block; margin-top: var(--space-4); color: var(--brand); font: 700 .76rem/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
.fact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 0; background: var(--border-subtle); border: 1px solid var(--border-subtle); }
.fact-grid > div { min-width: 0; padding: var(--space-4); background: var(--surface-raised); }
.fact-grid dt { color: var(--ink-secondary); font: 600 .68rem/1.3 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.fact-grid dd { margin: .45rem 0 0; color: var(--ink-primary); font: 800 .95rem/1.25 var(--font-mono); overflow-wrap: anywhere; }
.fact-grid small { display: block; margin-top: .45rem; color: var(--state-verified); font: 500 .62rem/1.3 var(--font-mono); text-transform: uppercase; }

/* ---------- home: FAQ (details/summary hooks) ---------- */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); align-items: start; }
details {
  border: 1px solid var(--border-subtle);
  background: var(--surface-panel);
  padding: var(--space-5);
}
details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font: 900 1.1rem/1.15 var(--font-display);
  text-transform: uppercase;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--brand); font: 700 1.4rem/1 var(--font-mono); }
details[open] summary::after { content: "−"; }
details p { margin: .8rem 0 0; color: var(--ink-secondary); }

/* ---------- home: final CTA ---------- */
.final-cta { padding: var(--space-8) 0; border-top: 1px solid var(--border-subtle); background: var(--surface-raised); }
.final-cta-inner { display: grid; grid-template-columns: 1fr auto; gap: var(--space-7); align-items: center; }
.final-cta h2 { margin: .65rem 0 1rem; }
.final-cta p { max-width: 42rem; margin-bottom: 0; color: var(--ink-secondary); }

/* ---------- article pages ---------- */
.article-hero { padding: var(--space-8) 0 var(--space-7); border-bottom: 1px solid var(--border-subtle); }
.crumb { color: var(--ink-secondary); font: 500 .72rem/1.4 var(--font-mono); }
.crumb a { text-decoration: none; }
.crumb a:hover { color: var(--brand); }
.article-hero h1 { max-width: 20ch; margin: .8rem 0 1rem; font: 900 var(--text-h1)/.95 var(--font-display); letter-spacing: -.055em; text-transform: uppercase; }
.article-hero .dek { max-width: 42rem; margin: 0; color: var(--ink-secondary); font-size: 1.1rem; }
.article-hero .vstamp { margin-bottom: var(--space-3); }
.article-grid { display: grid; grid-template-columns: minmax(0, var(--content-read)) 18rem; gap: var(--space-7); align-items: start; padding: var(--space-7) 0 var(--space-9); }
.article-grid--single { grid-template-columns: minmax(0, var(--content-read)); }
.article.trust h2 { font-size: clamp(1.35rem, 2.2vw, 1.7rem); }
.article h2 { margin: var(--space-7) 0 var(--space-4); }
.article h3 { margin: var(--space-6) 0 var(--space-3); }
.article p, .article li { color: var(--ink-secondary); }
.article li { margin: .35rem 0; }
.article strong { color: var(--ink-primary); }
.article a { color: var(--brand-text); text-decoration: underline; }
.byline { margin: var(--space-4) 0 0; color: var(--ink-secondary); font: 500 .72rem/1.5 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }

/* AnswerCard: cream paper, acid left rule, dark ink, visible status label. */
.answer-card {
  margin-bottom: var(--space-6);
  padding: var(--space-5);
  color: var(--ink-dark);
  background: var(--surface-paper);
  border-left: .6rem solid var(--brand);
  box-shadow: .6rem .6rem 0 #3f2754;
}
.answer-card .label { color: #5a2469; }
.answer-card h2 { margin: .55rem 0 .65rem; color: var(--ink-dark); font: 900 1.6rem/1.05 var(--font-display); text-transform: uppercase; }
.answer-card p, .answer-card li { color: var(--ink-dark); }
/* .article strong is cream for dark panels; on paper it must stay dark ink. */
.answer-card strong { color: #171020; }
/* AnswerCard lead: display weight, sentence case (a full uppercase sentence
   would be hard to read; the visual system only mandates uppercase headings). */
.answer-card .answer-lead p:first-child { margin-top: .5rem; font: 900 clamp(1.3rem, 2.2vw, 1.7rem)/1.15 var(--font-display); letter-spacing: -.03em; }
/* Dossier table on paper: keep the acid/ink contrast the tokens allow. */
.answer-card .table-wrap { border-color: rgba(33, 23, 37, .3); }
.answer-card table { font-size: .86rem; }
.answer-card th { background: rgba(33, 23, 37, .08); color: #5a2469; }
.answer-card td, .answer-card th { border-bottom-color: rgba(33, 23, 37, .22); }
.answer-card td { color: var(--ink-dark); }
.answer-card ol, .answer-card ul { padding-left: 1.2rem; }
.answer-card p:last-child { margin-bottom: 0; }
.answer-card a { color: #5a2469; }
.answer-card .vstamp { margin-top: var(--space-4); color: #2f5c14; border-color: #2f5c14; background: transparent; }
.answer-card .vstamp--caution { color: #7a5200; border-color: #7a5200; }
.answer-card .vstamp--limited { color: #8a1f27; border-color: #8a1f27; }
.answer-card .answer-source { display: inline-block; margin-top: var(--space-3); font: 700 .72rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }

.spoiler-rule { display: flex; align-items: center; gap: .75rem; margin: var(--space-6) 0; color: var(--state-caution); font: 700 .72rem/1 var(--font-mono); text-transform: uppercase; }
.spoiler-rule::before, .spoiler-rule::after { content: ""; height: 1px; flex: 1; background: currentColor; }

/* Evidence boundary — visible gap list for pages whose evidence is not ready. */
.evidence-boundary { margin: var(--space-6) 0; padding: var(--space-5); border: 1px solid var(--state-absent); border-left: .6rem solid var(--state-absent); background: var(--surface-panel); }
.evidence-boundary h2 { margin: .5rem 0 var(--space-3); font-size: clamp(1.25rem, 2vw, 1.6rem); }
.evidence-boundary ul { margin: 0; padding-left: 1.15rem; }
.evidence-boundary li { color: var(--ink-primary); }
.evidence-boundary .evidence-note { margin: var(--space-4) 0 0; color: var(--ink-secondary); font-size: .88rem; }
.evidence-boundary .vstamp { margin-top: var(--space-4); }

.table-wrap { overflow-x: auto; margin: var(--space-5) 0; border: 1px solid var(--border-subtle); }
table { border-collapse: collapse; width: 100%; min-width: 40rem; text-align: left; font-size: .9rem; }
th { position: sticky; top: 0; background: var(--surface-raised); color: var(--brand); font: 600 .68rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }
td, th { padding: .8rem .9rem; border-bottom: 1px solid var(--border-subtle); vertical-align: top; }
td { color: var(--ink-secondary); font-variant-numeric: tabular-nums; }
.scroll-hint { display: none; margin: var(--space-2) 0 0; color: var(--ink-secondary); font: 500 .7rem/1.4 var(--font-mono); }

.side-index { position: sticky; top: 6rem; padding: var(--space-5); background: var(--surface-raised); border: 1px solid var(--border-subtle); }
.side-index h2 { margin: 0 0 1rem; color: var(--brand); font: 800 .82rem/1 var(--font-mono); letter-spacing: .1em; }
.side-index ol { margin: 0; padding-left: 1.25rem; color: var(--ink-secondary); }
.side-index li { margin: .35rem 0; }
.side-index a { text-decoration: none; }
.side-index a:hover { color: var(--brand); }

.related { margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--border-subtle); }
.related h2 { font-size: 1.25rem; margin: 0 0 var(--space-3); }
.related ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.related a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 700; text-decoration: none; }
.related a:hover { color: var(--brand); text-decoration: underline; }
.sources { margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--border-subtle); }
.sources h2 { margin: 0 0 var(--space-3); font: 700 .78rem/1 var(--font-mono); letter-spacing: .1em; }
.sources ul { margin: 0; padding-left: 1.15rem; }
.sources li { color: var(--ink-secondary); font-size: .88rem; }

/* ---------- publisher footer ---------- */
.site-footer { margin-top: var(--space-8); padding: var(--space-7) 0; border-top: 1px solid var(--border-subtle); color: var(--ink-secondary); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: var(--space-6); align-items: start; }
.site-footer strong { color: var(--ink-primary); font: 900 1rem/1.2 var(--font-display); text-transform: uppercase; }
.site-footer p { max-width: 40rem; font-size: .86rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1rem; font: 600 .72rem/1 var(--font-mono); text-transform: uppercase; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--ink-secondary); text-decoration: none; }
.footer-links a:hover { color: var(--brand); text-decoration: underline; }
.footer-meta { margin-top: var(--space-5); padding-top: var(--space-4); border-top: 1px solid var(--border-subtle); font: 500 .72rem/1.6 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; }
.footer-meta a { text-decoration: underline; }

/* ---------- 404 ---------- */
.notfound { max-width: var(--content-read); margin-inline: auto; padding: var(--space-8) 0 var(--space-9); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .about-grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-7); }
  .article-grid { grid-template-columns: minmax(0, 1fr); }
  .side-index { position: static; order: -1; }
}
@media (max-width: 900px) {
  /* Visual system: hide the horizontal nav on small screens, keep brand + stamp. */
  .site-header .wrap { grid-template-columns: auto auto; justify-content: space-between; }
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .signal-board { min-height: 24rem; transform: none; }
  .launch-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); padding-block: var(--space-4); }
  .launch-grid .alarm { justify-self: start; }
  .final-cta-inner { grid-template-columns: 1fr; gap: var(--space-4); }
}
@media (max-width: 700px) {
  .wrap { width: min(calc(100% - 1.25rem), var(--content-wide)); }
  .site-header .wrap { min-height: 4rem; gap: var(--space-2); }
  .brand { font-size: .76rem; }
  .status-pill { max-width: 9.6rem; font-size: .56rem; padding: .35rem .45rem; letter-spacing: .04em; }
  .hero { padding: 2.6rem 0 3.5rem; }
  .hero-grid { gap: 2.8rem; }
  /* Longest display word ("INVESTIGATE") must not clip at 375px. */
  .hero h1 { max-width: 100%; font-size: clamp(2.7rem, 13vw, 3.35rem); letter-spacing: -.06em; }
  .hero-copy { font-size: .98rem; }
  .hero .buttons { display: grid; grid-template-columns: minmax(0, 1fr); }
  .hero-stats { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .55rem; }
  .signal-board { min-height: 20rem; box-shadow: .55rem .55rem 0 rgba(79, 60, 94, .28); }
  .signal-board .moon { width: 7rem; }
  .signal-board .tower { height: 13rem; width: 5.5rem; }
  .signal-board .scribble { max-width: 9rem; font-size: 1.15rem; }
  .launch-grid { grid-template-columns: minmax(0, 1fr); gap: .85rem; }
  .section { padding: 4.5rem 0; }
  .route-grid { grid-template-columns: minmax(0, 1fr); }
  .route-card:nth-child(n) { grid-column: 1; min-height: 12rem; }
  .fact-grid, .faq-grid { grid-template-columns: minmax(0, 1fr); }
  .article-hero { padding: 2.6rem 0 2rem; }
  .article-hero h1 { font-size: clamp(2.2rem, 9.5vw, 2.8rem); }
  .article-grid { padding-top: var(--space-5); gap: var(--space-6); }
  .answer-card { box-shadow: .35rem .35rem 0 #3f2754; }
  .scroll-hint { display: block; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .btn:hover, .route-card:hover { transform: none; }
  .hero h1 span { transform: none; }
  .signal-board { transform: none; }
}