:root {
  --night: #17140f;
  --night-2: #211d16;
  --paper: #f5f0e6;
  --paper-2: #ebe2d2;
  --ink: #201c16;
  --ink-2: #51493f;
  --ink-3: #756b5e;
  --gold: #b88725;
  --red: #cf3b55;
  --line: rgba(44, 36, 26, 0.16);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", Arial, sans-serif;
  --mono: "Spline Sans Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.reading { width: min(760px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: fixed; left: -999px; top: 12px; z-index: 100; background: #fff; padding: 12px 16px; }
.skip-link:focus { left: 12px; }

.content-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255,255,255,.1);
  background: rgba(23,20,15,.94);
  color: #e9e0d1;
  backdrop-filter: blur(16px);
}
.content-nav .shell { min-height: 64px; display: flex; align-items: center; gap: 22px; }
.atlas-wordmark { margin-right: auto; font-family: var(--serif); font-size: 18px; text-decoration: none; }
.atlas-wordmark em { color: #c9992e; }
.content-nav-links { display: flex; align-items: center; gap: 18px; font-family: var(--mono); font-size: 11px; letter-spacing: .07em; text-transform: uppercase; }
.content-nav-links a { color: #bcb1a1; text-decoration: none; }
.content-nav-links a:hover { color: #fff; }

.crumbs { display: flex; flex-wrap: wrap; gap: 8px; padding: 28px 0 0; color: var(--ink-3); font-family: var(--mono); font-size: 11px; }
.crumbs a { text-decoration: none; }
.crumbs span[aria-hidden] { opacity: .45; }

.article-hero {
  padding: 32px 0 46px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 78% 20%, rgba(207,59,85,.1), transparent 28%),
    linear-gradient(180deg, #f8f4ec, var(--paper));
}
.article-kicker, .eyebrow { margin: 0 0 14px; color: var(--red); font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; }
.article-hero h1, .domain-hero h1, .policy-hero h1 { max-width: 15ch; margin: 0; font-family: var(--serif); font-size: clamp(44px, 6vw, 78px); font-weight: 500; line-height: .98; letter-spacing: -.035em; }
.article-dek { max-width: 740px; margin: 24px 0 0; color: var(--ink-2); font-family: var(--serif); font-size: clamp(19px, 2vw, 25px); line-height: 1.5; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 24px; color: var(--ink-3); font-family: var(--mono); font-size: 11px; }
.hero-figure { width: min(1160px, calc(100% - 40px)); margin: 34px auto 0; }
.hero-figure img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border: 1px solid rgba(44,36,26,.2); border-radius: 4px; box-shadow: 0 28px 80px rgba(31,24,15,.16); }
.hero-figure figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 18px; padding: 11px 2px 0; color: var(--ink-3); font-family: var(--mono); font-size: 10px; line-height: 1.5; }

.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 72px; width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 58px 0 90px; }
.article-body { min-width: 0; }
.article-body > section { scroll-margin-top: 90px; margin-top: 62px; }
.article-body > section:first-child { margin-top: 0; }
.article-body h2 { margin: 0 0 20px; font-family: var(--serif); font-size: clamp(30px, 4vw, 43px); font-weight: 500; line-height: 1.08; letter-spacing: -.02em; }
.article-body h3 { margin: 0; font-family: var(--serif); font-size: 25px; font-weight: 550; }
.article-body p { margin: 0 0 18px; color: var(--ink-2); font-size: 17px; line-height: 1.82; }
.article-body ul { margin: 20px 0; padding-left: 22px; color: var(--ink-2); }
.article-body li { margin: 10px 0; padding-left: 6px; line-height: 1.65; }
.article-body strong { color: var(--ink); }

.quick-answer { margin-bottom: 54px; padding: 26px 28px; border: 1px solid rgba(207,59,85,.25); border-left: 4px solid var(--red); background: rgba(255,255,255,.48); }
.quick-answer h2 { margin-bottom: 10px; font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.quick-answer p { margin: 0; font-size: 17px; line-height: 1.7; }

.article-figure { margin: 32px 0 12px; }
.article-figure img { width: 100%; border: 1px solid var(--line); border-radius: 4px; background: #e9dfcd; }
.article-figure figcaption { display: grid; gap: 5px; padding: 12px 2px 0; color: var(--ink-3); font-family: var(--mono); font-size: 10.5px; line-height: 1.55; }
.article-figure figcaption span:last-child { opacity: .76; }

.stage-grid { display: grid; gap: 12px; margin: 28px 0; }
.stage-card { display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 18px; padding: 22px; border: 1px solid var(--line); background: rgba(255,255,255,.45); }
.stage-letter { display: grid; width: 52px; height: 52px; place-items: center; border-radius: 50%; background: var(--red); color: #fff; font-family: var(--serif); font-size: 30px; }
.stage-card p { margin: 7px 0 8px; font-size: 15px; line-height: 1.6; }
.stage-card ul { margin: 8px 0 10px; font-size: 14px; }
.stage-signals { color: var(--ink-3); font-family: var(--mono); font-size: 10.5px; line-height: 1.6; }

.example-box { margin: 26px 0; padding: 28px; background: var(--night); color: #eee5d7; }
.example-context { color: #c4b9a8 !important; }
.example-step { display: grid; grid-template-columns: 110px 1fr; gap: 18px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.12); }
.example-step strong { color: #d6a541; font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.example-step p { margin: 0; color: #eee5d7; font-size: 15px; line-height: 1.65; }
.example-note { margin: 18px 0 0 !important; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); color: #c4b9a8 !important; font-size: 14px !important; }
.callout { margin: 28px 0; padding: 24px; border-top: 1px solid var(--gold); border-bottom: 1px solid var(--gold); color: var(--ink) !important; font-family: var(--serif); font-size: 24px !important; line-height: 1.45 !important; }
.checklist { padding: 0; list-style: none; }
.checklist li { position: relative; padding: 13px 14px 13px 42px; border-bottom: 1px solid var(--line); }
.checklist li::before { position: absolute; left: 10px; top: 13px; content: "✓"; color: var(--red); font-weight: 700; }

.article-toc { position: sticky; top: 92px; align-self: start; padding-left: 20px; border-left: 1px solid var(--line); }
.article-toc p { margin: 0 0 14px; color: var(--ink-3); font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; }
.article-toc a { display: block; margin: 10px 0; color: var(--ink-3); font-size: 12px; line-height: 1.4; text-decoration: none; }
.article-toc a:hover { color: var(--red); }

.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; padding: 18px 0; font-family: var(--serif); font-size: 20px; }
.faq-list details p { padding: 0 0 18px; }
.source-list { display: grid; gap: 10px; padding: 0; list-style: none; }
.source-list li { margin: 0; padding: 16px 0; border-bottom: 1px solid var(--line); }
.source-list a { color: var(--ink); font-weight: 600; }
.source-list span { display: block; margin-top: 5px; color: var(--ink-3); font-size: 13px; }
.related-links { display: flex; flex-wrap: wrap; gap: 8px; }
.related-links a { padding: 9px 12px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; text-decoration: none; }

.domain-hero, .policy-hero { padding: 72px 0 54px; background: var(--night); color: #eee5d7; }
.domain-hero h1, .policy-hero h1 { max-width: 18ch; }
.domain-hero p, .policy-hero p { max-width: 680px; margin: 22px 0 0; color: #bcb1a1; font-family: var(--serif); font-size: 21px; line-height: 1.5; }
.domain-main { padding: 58px 0 90px; }
.domain-group { margin: 0 0 52px; }
.domain-group h2 { margin: 0 0 18px; font-family: var(--serif); font-size: 34px; font-weight: 500; }
.concept-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.concept-card { display: block; min-height: 164px; padding: 20px; border: 1px solid var(--line); background: rgba(255,255,255,.44); text-decoration: none; }
.concept-card:hover { border-color: var(--domain-color, var(--gold)); transform: translateY(-2px); }
.concept-card h3 { margin: 0; font-family: var(--serif); font-size: 22px; font-weight: 550; }
.concept-card p { margin: 10px 0 14px; color: var(--ink-2); font-size: 13px; line-height: 1.6; }
.concept-state { color: var(--ink-3); font-family: var(--mono); font-size: 9.5px; letter-spacing: .08em; text-transform: uppercase; }
.concept-state.published { color: var(--red); }
.domain-jump { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 50px; }
.domain-jump a { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; font-size: 11px; text-decoration: none; }

.policy-main { padding: 62px 0 90px; }
.policy-main h2 { margin: 44px 0 14px; font-family: var(--serif); font-size: 32px; font-weight: 500; }
.policy-main p, .policy-main li { color: var(--ink-2); font-size: 16px; line-height: 1.8; }

.content-footer { padding: 34px 0 44px; border-top: 1px solid rgba(255,255,255,.1); background: var(--night); color: #bcb1a1; }
.content-footer .shell { display: flex; flex-wrap: wrap; gap: 12px 22px; align-items: center; }
.content-footer strong { margin-right: auto; color: #eee5d7; font-family: var(--serif); font-size: 18px; font-weight: 500; }
.content-footer a { font-family: var(--mono); font-size: 10.5px; text-decoration: none; text-transform: uppercase; letter-spacing: .06em; }

@media (max-width: 860px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { display: none; }
  .concept-list { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .shell, .reading, .article-layout, .hero-figure { width: min(100% - 28px, 760px); }
  .content-nav .shell { min-height: 58px; }
  .content-nav-links a:not(:last-child) { display: none; }
  .article-hero h1, .domain-hero h1, .policy-hero h1 { font-size: 42px; }
  .hero-figure { margin-top: 24px; }
  .article-layout { padding-top: 42px; }
  .stage-card { grid-template-columns: 44px 1fr; padding: 18px 14px; }
  .stage-letter { width: 42px; height: 42px; font-size: 24px; }
  .example-box { padding: 20px; }
  .example-step { grid-template-columns: 1fr; gap: 6px; }
}

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