:root {
  --ink: #11110f;
  --paper: #f2efe6;
  --paper-2: #e6e1d5;
  --coral: #ff5a2a;
  --blue: #2d5bff;
  --yellow: #f2d235;
  --muted: #706e68;
  --line: rgba(17, 17, 15, 0.18);
  --max: 1440px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, input { font: inherit; }
img { max-width: 100%; }
::selection { background: var(--coral); color: var(--ink); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  background: white;
  color: black;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  min-height: 82px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--line);
}
.home-header { max-width: none; background: var(--ink); color: var(--paper); border-color: rgba(255,255,255,.17); }
.wordmark {
  display: inline-grid;
  gap: 2px;
  color: inherit;
  font-weight: 800;
  line-height: .86;
  text-decoration: none;
  text-transform: uppercase;
}
.wordmark-primary { font-size: .82rem; letter-spacing: .17em; }
.wordmark-secondary { color: var(--coral); font-size: .64rem; letter-spacing: .28em; }
.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav a { font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.site-nav a:not(.nav-download):hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.nav-download { padding: 11px 15px; border: 1px solid currentColor; }
.nav-download:hover { background: var(--coral); color: var(--ink); border-color: var(--coral); }
.menu-toggle { display: none; border: 0; background: transparent; color: inherit; font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid currentColor;
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .2s ease, background .2s ease, color .2s ease;
}
.button:hover { transform: translateY(-3px); }
.button-light { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.button-light:hover { background: var(--yellow); border-color: var(--yellow); }
.button-dark { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.button-dark:hover { background: var(--coral); color: var(--ink); border-color: var(--coral); }
.text-link { font-size: .8rem; font-weight: 800; letter-spacing: .07em; text-underline-offset: 5px; text-transform: uppercase; }
.light-link { color: var(--paper); }
.eyebrow { display: flex; gap: 24px; margin: 0 0 34px; font-size: .68rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow span:last-child { opacity: .55; }
.dark-eyebrow { color: var(--muted); }

.home-hero {
  display: grid;
  min-height: min(820px, calc(100vh - 82px));
  grid-template-columns: minmax(0, 1.15fr) minmax(420px, .85fr);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(72px, 9vw, 142px) clamp(24px, 7vw, 112px); }
.hero-copy h1 {
  max-width: 840px;
  margin: 0;
  font-size: clamp(4rem, 9vw, 9.4rem);
  font-weight: 900;
  letter-spacing: -.075em;
  line-height: .8;
  text-transform: uppercase;
}
.hero-copy h1 em { color: var(--coral); font-family: Georgia, 'Times New Roman', serif; font-weight: 400; text-transform: none; }
.hero-deck { max-width: 670px; margin: 46px 0 0; color: #c7c3ba; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(1.2rem, 2vw, 1.75rem); line-height: 1.45; }
.hero-actions, .history-actions, .feature-actions { display: flex; align-items: center; gap: 26px; margin-top: 44px; }
.hero-orbit {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background: var(--coral);
  color: var(--ink);
}
.orbit { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(17,17,15,.72); border-radius: 50%; transform: translate(-50%,-50%); }
.orbit span { position: absolute; top: -11px; left: 50%; padding: 3px 7px; background: var(--coral); font-size: .65rem; font-weight: 800; letter-spacing: .1em; }
.orbit-a { width: 78%; aspect-ratio: 1; }
.orbit-b { width: 56%; aspect-ratio: 1; }
.orbit-c { width: 35%; aspect-ratio: 1; }
.orbit-core { position: absolute; top: 50%; left: 50%; display: grid; width: 145px; aspect-ratio: 1; padding: 24px; place-items: center; border-radius: 50%; background: var(--ink); color: var(--paper); transform: translate(-50%,-50%); }
.orbit-core strong { color: var(--yellow); font-size: 2.6rem; letter-spacing: -.07em; line-height: 1; }
.orbit-core span { align-self: end; font-size: .58rem; font-weight: 800; letter-spacing: .12em; text-align: center; text-transform: uppercase; }
.orbit-caption { position: absolute; right: 8%; bottom: 7%; max-width: 280px; margin: 0; font-family: Georgia, 'Times New Roman', serif; font-size: 1rem; }

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
}
.signal-strip p { margin: 0; padding: 23px clamp(20px, 3vw, 48px); border-right: 1px solid var(--line); font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.signal-strip p:last-child { border-right: 0; }
.signal-strip span { color: var(--coral); margin-right: 10px; }
.entry-routes { max-width: var(--max); margin: 0 auto; padding: clamp(90px, 11vw, 168px) clamp(24px, 6vw, 96px); }
.entry-route-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 72px; }
.entry-route { display: flex; min-height: 350px; flex-direction: column; padding: 30px; border: 1px solid var(--ink); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.entry-route:hover { transform: translateY(-6px); box-shadow: 9px 9px 0 var(--ink); }
.entry-route span, .guide-kicker, .guide-label, .source-card small, .guide-meta { font-size: .66rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.entry-route strong { max-width: 430px; margin: auto 0 16px; font-family: Georgia, serif; font-size: clamp(2rem, 3.4vw, 3.6rem); font-weight: 400; letter-spacing: -.055em; line-height: .95; }
.entry-route small { max-width: 390px; font-family: Georgia, serif; font-size: .98rem; line-height: 1.45; }
.route-coral { background: var(--coral); }
.route-ink { background: var(--ink); color: var(--paper); }
.route-yellow { background: var(--yellow); }
.featured, .eras, .method { max-width: var(--max); margin: 0 auto; padding: clamp(90px, 11vw, 168px) clamp(24px, 6vw, 96px); }
.section-heading { max-width: 900px; }
.section-heading h2 { margin: 0; font-size: clamp(3rem, 6.6vw, 7.2rem); font-weight: 900; letter-spacing: -.065em; line-height: .88; text-transform: uppercase; }
.feature-grid { display: grid; grid-template-columns: 1.28fr .72fr; gap: 1px; margin-top: 72px; background: var(--ink); border: 1px solid var(--ink); }
.feature-card { padding: clamp(36px, 6vw, 84px); background: var(--coral); }
.feature-topline { display: flex; justify-content: space-between; margin-bottom: 94px; font-size: .66rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.feature-card h3 { max-width: 760px; margin: 0; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(2.7rem, 5.6vw, 6.6rem); font-weight: 400; letter-spacing: -.055em; line-height: .92; }
.feature-card > p { max-width: 720px; margin: 38px 0 0; font-size: 1.08rem; line-height: 1.65; }
.feature-thesis { display: flex; flex-direction: column; justify-content: flex-end; padding: clamp(34px, 4vw, 64px); background: var(--ink); color: var(--paper); }
.feature-thesis .quote-mark { margin: 0 0 auto; color: var(--yellow); font-family: Georgia, serif; font-size: 8rem; line-height: .5; }
.feature-thesis blockquote { margin: 100px 0 26px; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(1.45rem, 2.5vw, 2.35rem); line-height: 1.28; }
.feature-thesis > p:last-child { color: #a6a39c; font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.eras { border-top: 1px solid var(--line); }
.split-heading { display: grid; max-width: none; grid-template-columns: minmax(0, 1.5fr) minmax(260px, .5fr); gap: 10%; align-items: end; }
.split-heading > p { margin: 0 0 5px; color: var(--muted); font-family: Georgia, 'Times New Roman', serif; font-size: 1.18rem; line-height: 1.55; }
.era-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 12px; margin-top: 70px; }
.era-card { display: flex; min-height: 280px; flex-direction: column; padding: 28px; border: 1px solid var(--ink); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.era-card:hover { z-index: 2; transform: translateY(-7px) rotate(-.5deg); box-shadow: 10px 10px 0 var(--ink); }
.era-card span { font-size: .64rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.era-card strong { margin-top: auto; font-size: clamp(1.45rem, 2.2vw, 2.5rem); letter-spacing: -.04em; line-height: 1; text-transform: uppercase; }
.era-card small { margin-top: 17px; font-family: Georgia, serif; font-size: .9rem; }
.era-card:nth-child(1), .era-card:nth-child(2), .era-card:nth-child(3) { grid-column: span 4; }
.era-card:nth-child(4) { grid-column: span 7; }
.era-card:nth-child(5) { grid-column: span 5; }
.coral { background: var(--coral); }
.cream { background: #d9d1c0; }
.blue { background: var(--blue); color: white; }
.black { background: var(--ink); color: var(--paper); }
.yellow { background: var(--yellow); }
.method { border-top: 1px solid var(--line); }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 72px; background: var(--ink); border: 1px solid var(--ink); }
.method-grid article { min-height: 340px; padding: 38px; background: var(--paper); }
.method-grid span { color: var(--coral); font-size: .7rem; font-weight: 800; }
.method-grid h3 { margin: 90px 0 18px; font-size: 1.5rem; letter-spacing: -.035em; text-transform: uppercase; }
.method-grid p { color: var(--muted); font-family: Georgia, serif; font-size: 1.04rem; line-height: 1.55; }
.desk { padding: clamp(70px, 9vw, 130px) clamp(24px, 7vw, 112px); background: var(--blue); color: white; }
.desk-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .5fr); gap: 10%; align-items: end; }
.desk h2 { max-width: 950px; margin: 0; font-size: clamp(3.3rem, 7vw, 8rem); letter-spacing: -.07em; line-height: .86; text-transform: uppercase; }
.desk-grid > div > p { max-width: 520px; font-family: Georgia, serif; font-size: 1.15rem; line-height: 1.55; }
.desk-status { display: flex; align-items: center; gap: 10px; margin-top: 35px; font-family: Arial, sans-serif !important; font-size: .68rem !important; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.desk-status span { width: 9px; height: 9px; background: var(--yellow); border-radius: 50%; box-shadow: 0 0 0 6px rgba(242,210,53,.18); }
.site-footer { display: grid; grid-template-columns: 1.4fr 1fr auto; gap: 50px; align-items: end; padding: 58px clamp(24px, 6vw, 96px); background: var(--ink); color: var(--paper); }
.site-footer p { max-width: 540px; margin: 18px 0 0; color: #9d9a93; font-size: .72rem; line-height: 1.6; }

.reading-progress { position: fixed; z-index: 50; top: 0; left: 0; width: 100%; height: 4px; pointer-events: none; }
.reading-progress span { display: block; width: 100%; height: 100%; background: var(--coral); transform: scaleX(0); transform-origin: left; }
.history-hero { max-width: var(--max); margin: 0 auto; padding: clamp(74px, 10vw, 145px) clamp(24px, 6vw, 96px) clamp(80px, 11vw, 160px); }
.history-kicker { display: flex; justify-content: space-between; margin-bottom: 70px; color: var(--muted); font-size: .68rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.history-hero h1 { max-width: 1220px; margin: 0; font-size: clamp(4.2rem, 10vw, 10.5rem); font-weight: 900; letter-spacing: -.08em; line-height: .78; text-transform: uppercase; }
.history-deck { max-width: 760px; margin: 52px 0 0; color: var(--coral); font-family: Georgia, 'Times New Roman', serif; font-size: clamp(1.7rem, 3.3vw, 3.25rem); line-height: 1.12; }
.history-metrics { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 780px; gap: 1px; margin-top: 78px; background: var(--ink); border: 1px solid var(--ink); }
.history-metrics div { display: flex; min-height: 130px; flex-direction: column; justify-content: space-between; padding: 24px; background: var(--paper); }
.history-metrics strong { font-size: clamp(1.8rem, 3vw, 3.2rem); letter-spacing: -.06em; }
.history-metrics span { color: var(--muted); font-size: .65rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.history-layout { display: grid; max-width: var(--max); grid-template-columns: 350px minmax(0, 1fr); margin: 0 auto; border-top: 1px solid var(--line); }
.history-sidebar { border-right: 1px solid var(--line); }
.sidebar-inner { position: sticky; top: 0; max-height: 100vh; padding: 48px 38px; overflow: auto; }
.sidebar-label { margin: 0 0 14px; font-size: .68rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.search-field input { width: 100%; padding: 14px 0; border: 0; border-bottom: 2px solid var(--ink); border-radius: 0; outline: 0; background: transparent; color: var(--ink); }
.search-field input:focus { border-color: var(--coral); }
.search-status { margin: 10px 0 28px; color: var(--muted); font-size: .68rem; }
.chapter-nav { display: grid; gap: 2px; margin: 0; padding: 0; list-style: none; }
.chapter-nav li[hidden] { display: none; }
.chapter-nav a { display: grid; grid-template-columns: 28px 1fr; gap: 7px; padding: 8px 7px; color: var(--muted); font-size: .73rem; line-height: 1.25; text-decoration: none; }
.chapter-nav a span { color: var(--coral); font-size: .63rem; font-weight: 800; }
.chapter-nav a:hover, .chapter-nav a[aria-current="location"] { background: var(--ink); color: var(--paper); }
.sidebar-sources { display: inline-block; margin-top: 28px; font-size: .68rem; font-weight: 800; letter-spacing: .08em; text-underline-offset: 5px; text-transform: uppercase; }
.history-article { min-width: 0; }
.research-note { display: grid; grid-template-columns: 1.2fr .8fr; gap: 50px; padding: 55px clamp(28px, 7vw, 112px); background: var(--yellow); border-bottom: 1px solid var(--ink); }
.research-note p { max-width: 650px; margin: 0; font-size: .86rem; line-height: 1.65; }
.history-section { max-width: 920px; margin: 0 auto; padding: clamp(78px, 10vw, 140px) clamp(28px, 7vw, 110px); scroll-margin-top: 24px; }
.history-section + .history-section { border-top: 1px solid var(--line); }
.chapter-number { margin: 0 0 28px !important; color: var(--coral) !important; font-family: Arial, sans-serif !important; font-size: .67rem !important; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.history-section h2, .article-closure h2 { margin: 0 0 52px; font-size: clamp(2.4rem, 5vw, 5.7rem); font-weight: 900; letter-spacing: -.06em; line-height: .93; text-transform: uppercase; }
.history-section > p, .history-section > ul, .history-section > blockquote { max-width: 760px; margin: 0 0 27px; font-family: Georgia, 'Times New Roman', serif; font-size: clamp(1.08rem, 1.5vw, 1.3rem); line-height: 1.72; }
.history-section > p:first-of-type:not(.chapter-number) { font-size: clamp(1.25rem, 1.8vw, 1.55rem); line-height: 1.58; }
.abstract { max-width: none; padding-right: clamp(28px, 12vw, 190px); padding-left: clamp(28px, 12vw, 190px); background: var(--ink); color: var(--paper); }
.abstract h2 { color: var(--yellow); }
.citation { display: inline-grid; width: 1.65em; height: 1.65em; place-items: center; border-radius: 50%; background: var(--coral); color: var(--ink); font-family: Arial, sans-serif; font-size: .62em; font-weight: 800; text-decoration: none; vertical-align: .18em; }
.citation:hover { background: var(--yellow); }
.reference-anchor { display: block; height: 0; scroll-margin-top: 30px; }
.references { max-width: none; padding-right: clamp(28px, 8vw, 130px); padding-left: clamp(28px, 8vw, 130px); background: var(--paper-2); }
.references > p { max-width: 820px; font-family: Arial, sans-serif; font-size: .9rem; line-height: 1.6; }
.references .source-link { margin: -17px 0 46px; font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.references .source-link a { text-underline-offset: 5px; }
.reference-anchor:target + p { padding: 12px; outline: 3px solid var(--coral); }
.article-closure { padding: clamp(80px, 11vw, 150px) clamp(28px, 8vw, 130px); background: var(--coral); }
.article-closure p:not(.chapter-number) { max-width: 690px; font-family: Georgia, serif; font-size: 1.2rem; line-height: 1.6; }
.article-closure .button { margin-top: 28px; }
.article-closure-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 28px; }
.article-closure-actions .button { margin-top: 0; }
.no-results { padding: 30px 0; color: var(--muted); font-family: Georgia, serif; }

.guide-page { background: var(--paper); }
.guide-hero { max-width: var(--max); margin: 0 auto; padding: clamp(80px, 11vw, 164px) clamp(24px, 7vw, 112px) clamp(70px, 9vw, 126px); border-bottom: 1px solid var(--line); }
.guide-kicker { display: flex; flex-wrap: wrap; gap: 18px; margin: 0 0 42px; color: var(--muted); }
.guide-kicker span:last-child { color: var(--coral); }
.guide-hero h1 { max-width: 1080px; margin: 0; font-size: clamp(3.6rem, 9.2vw, 9.7rem); font-weight: 900; letter-spacing: -.075em; line-height: .82; text-transform: uppercase; }
.guide-deck { max-width: 760px; margin: 48px 0 0; color: var(--muted); font-family: Georgia, serif; font-size: clamp(1.25rem, 2vw, 1.85rem); line-height: 1.45; }
.guide-main { max-width: var(--max); margin: 0 auto; padding: 0 clamp(24px, 7vw, 112px) clamp(80px, 10vw, 150px); }
.guide-section { max-width: 960px; padding: clamp(60px, 8vw, 110px) 0; border-bottom: 1px solid var(--line); }
.guide-section h2 { max-width: 860px; margin: 0 0 30px; font-size: clamp(2.35rem, 5vw, 5.4rem); letter-spacing: -.065em; line-height: .9; text-transform: uppercase; }
.guide-section > p, .guide-section li { max-width: 760px; font-family: Georgia, serif; font-size: 1.1rem; line-height: 1.7; }
.guide-section > p { margin: 0 0 22px; }
.guide-section ul, .guide-section ol { display: grid; gap: 14px; margin: 28px 0 0; padding-left: 24px; }
.guide-label { margin: 0 0 20px; color: var(--coral); }
.guide-answer { max-width: none; margin: 0; padding: clamp(34px, 5vw, 64px); background: var(--yellow); border: 1px solid var(--ink); }
.guide-answer p { max-width: 780px; margin: 0; font-family: Georgia, serif; font-size: clamp(1.3rem, 2.4vw, 2.2rem); line-height: 1.3; }
.source-directory { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: none; }
.source-card { display: flex; min-height: 290px; flex-direction: column; padding: 28px; border: 1px solid var(--ink); text-decoration: none; }
.source-card:hover { background: var(--ink); color: var(--paper); }
.source-card small { color: var(--coral); }
.source-card strong { margin: auto 0 14px; font-size: 1.65rem; letter-spacing: -.04em; line-height: 1; text-transform: uppercase; }
.source-card span { max-width: 310px; color: inherit; font-family: Georgia, serif; font-size: .98rem; line-height: 1.45; }
.checklist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; max-width: none; background: var(--ink); border: 1px solid var(--ink); list-style: none; padding: 1px !important; }
.checklist li { max-width: none; margin: 0; padding: 28px; background: var(--paper); font-family: Arial, sans-serif; font-size: .95rem; line-height: 1.5; }
.checklist strong { display: block; margin-bottom: 10px; color: var(--coral); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }
.guide-note { max-width: 760px; margin-top: 32px !important; padding: 22px 24px; border-left: 5px solid var(--coral); background: var(--paper-2); font-family: Arial, sans-serif !important; font-size: .9rem !important; }
.guide-closure { max-width: none; margin: 0; padding: clamp(60px, 8vw, 110px) clamp(24px, 7vw, 112px); background: var(--blue); color: var(--paper); }
.guide-closure > div { max-width: var(--max); margin: 0 auto; }
.guide-closure h2 { max-width: 900px; margin: 0 0 28px; font-size: clamp(2.7rem, 6vw, 6.4rem); letter-spacing: -.07em; line-height: .88; text-transform: uppercase; }
.guide-closure p { max-width: 660px; margin: 0; font-family: Georgia, serif; font-size: 1.2rem; line-height: 1.55; }
.guide-closure .hero-actions { margin-top: 32px; }

.finder-hero h1 { max-width: 1180px; }
.finder-boundary { max-width: 770px; margin: 30px 0 0; padding: 18px 20px; border-left: 5px solid var(--coral); background: var(--paper-2); font-size: .82rem; font-weight: 700; line-height: 1.55; }
.finder-shell { max-width: var(--max); margin: 0 auto; padding: 0 clamp(24px, 7vw, 112px) clamp(90px, 10vw, 150px); }
.finder-panel { padding: clamp(65px, 8vw, 110px) 0; border-bottom: 1px solid var(--line); }
.finder-intro { max-width: 850px; }
.finder-intro h2, .finder-explainer h2, .finder-sources h2 { margin: 0 0 30px; font-size: clamp(2.5rem, 5vw, 5.6rem); letter-spacing: -.065em; line-height: .9; text-transform: uppercase; }
.finder-intro > p:last-child { max-width: 720px; color: var(--muted); font-family: Georgia, serif; font-size: 1.12rem; line-height: 1.65; }
.finder-form { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 54px; background: var(--ink); border: 1px solid var(--ink); }
.finder-form > label { display: flex; min-height: 190px; flex-direction: column; justify-content: space-between; padding: 28px; background: var(--paper); }
.finder-form label > span, .result-topline, .finder-result h3 { font-size: .68rem; font-weight: 800; letter-spacing: .1em; line-height: 1.4; text-transform: uppercase; }
.finder-form select { width: 100%; margin-top: 30px; padding: 14px 34px 14px 0; border: 0; border-bottom: 2px solid var(--ink); border-radius: 0; background: transparent; color: var(--ink); font: 700 1rem Arial, sans-serif; }
.finder-form select:focus { outline: 3px solid var(--yellow); outline-offset: 5px; }
.finder-form-actions { display: flex; grid-column: 1 / -1; align-items: center; gap: 24px; padding: 26px; background: var(--paper-2); }
.finder-form-actions .button { cursor: pointer; }
.finder-reset { padding: 10px 0; border: 0; border-bottom: 1px solid currentColor; background: transparent; color: var(--ink); cursor: pointer; font-weight: 800; }
.finder-privacy { grid-column: 1 / -1; margin: 0; padding: 18px 26px; background: var(--ink); color: #bcb9b1; font-size: .74rem; line-height: 1.5; }
.finder-result { margin-top: 22px; padding: clamp(32px, 5vw, 70px); border: 1px solid var(--ink); background: var(--yellow); outline: 0; }
.finder-result[data-state="unsupported"] { background: var(--coral); }
.finder-result[data-state="not_documented"] { background: var(--paper-2); }
.finder-result[data-state="same_edition"] { background: #d9d1c0; }
.finder-result:focus-visible { outline: 5px solid var(--blue); outline-offset: 4px; }
.result-topline { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 26px; border-bottom: 1px solid rgba(17,17,15,.45); }
.finder-result > h2 { max-width: 950px; margin: 46px 0 24px; font-size: clamp(2.8rem, 6vw, 6.6rem); letter-spacing: -.07em; line-height: .86; text-transform: uppercase; }
.result-summary { max-width: 820px; margin: 0; font-family: Georgia, serif; font-size: clamp(1.2rem, 2vw, 1.75rem); line-height: 1.45; }
.result-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(40px, 8vw, 110px); margin-top: 58px; }
.finder-result h3 { margin: 0 0 22px; }
.finder-result ul { display: grid; gap: 12px; margin: 0; padding-left: 21px; font-family: Georgia, serif; line-height: 1.55; }
.result-sources { display: grid; gap: 10px; }
.result-sources a { display: block; padding: 12px 0; border-bottom: 1px solid var(--ink); font-size: .82rem; font-weight: 800; line-height: 1.35; text-underline-offset: 4px; }
.result-sources span { font-family: Georgia, serif; font-size: .92rem; line-height: 1.5; }
.result-limit { margin: 45px 0 0; padding-top: 22px; border-top: 1px solid rgba(17,17,15,.45); font-size: .76rem; font-weight: 700; line-height: 1.55; }
.finder-explainer, .finder-sources { padding: clamp(65px, 8vw, 110px) 0; border-bottom: 1px solid var(--line); }
.state-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--ink); border: 1px solid var(--ink); }
.state-grid article { min-height: 245px; padding: 28px; background: var(--paper); }
.state-grid h3 { margin: 55px 0 14px; font-size: 1.25rem; letter-spacing: -.03em; text-transform: uppercase; }
.state-grid p { margin: 0; color: var(--muted); font-family: Georgia, serif; line-height: 1.55; }
.state-swatch { display: block; width: 40px; height: 12px; border: 1px solid var(--ink); }
.state-supported { background: var(--yellow); }.state-unsupported { background: var(--coral); }.state-unknown { background: var(--paper-2); }.state-same { background: #d9d1c0; }
.finder-source-list { display: grid; margin-top: 50px; border-top: 1px solid var(--ink); }
.finder-source-list a { display: grid; grid-template-columns: 1fr auto; gap: 30px; padding: 22px 0; border-bottom: 1px solid var(--ink); text-decoration: none; }
.finder-source-list a:hover strong { color: var(--coral); }
.finder-source-list strong { font-size: 1rem; text-transform: uppercase; }
.finder-source-list span { color: var(--muted); font-size: .74rem; }

.not-found { display: grid; min-height: 100vh; place-items: center; padding: 30px; background: var(--coral); }
.not-found-card { width: min(760px, 100%); padding: clamp(34px, 7vw, 90px); background: var(--paper); border: 1px solid var(--ink); box-shadow: 14px 14px 0 var(--ink); }
.not-found-code { margin: 0; color: var(--coral); font-size: .7rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.not-found h1 { margin: 28px 0; font-size: clamp(3rem, 9vw, 7rem); letter-spacing: -.07em; line-height: .86; text-transform: uppercase; }
.not-found-card > p:not(.not-found-code) { max-width: 520px; font-family: Georgia, serif; font-size: 1.15rem; line-height: 1.6; }
.not-found-actions { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; margin-top: 38px; }

@media (max-width: 1050px) {
  .home-hero { grid-template-columns: 1fr; }
  .hero-orbit { min-height: 620px; }
  .feature-grid { grid-template-columns: 1fr; }
  .entry-route-grid, .source-directory { grid-template-columns: 1fr; }
  .feature-thesis blockquote { margin-top: 70px; }
  .history-layout { grid-template-columns: 280px minmax(0, 1fr); }
  .sidebar-inner { padding-right: 20px; padding-left: 20px; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer > p:last-child { grid-column: 2; }
}

@media (max-width: 760px) {
  .site-header { min-height: 70px; }
  .menu-toggle { display: block; cursor: pointer; }
  .site-nav {
    position: absolute;
    top: 70px;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 16px 20px 24px;
    background: var(--ink);
    color: var(--paper);
  }
  .site-nav[data-open="true"] { display: flex; }
  .site-nav a { padding: 14px 0; }
  .nav-download { padding: 14px; text-align: center; }
  .hero-copy { padding-top: 92px; padding-bottom: 90px; }
  .hero-copy h1 { font-size: clamp(3.7rem, 19vw, 7rem); }
  .hero-deck { margin-top: 34px; }
  .hero-actions, .history-actions, .feature-actions { align-items: flex-start; flex-direction: column; }
  .hero-orbit { min-height: 480px; }
  .orbit-a { width: 92%; }
  .signal-strip { grid-template-columns: 1fr 1fr; }
  .signal-strip p:nth-child(2) { border-right: 0; }
  .signal-strip p:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section-heading h2 { font-size: clamp(2.8rem, 14vw, 5rem); }
  .feature-topline { gap: 20px; margin-bottom: 60px; }
  .feature-card, .feature-thesis { padding: 32px 24px; }
  .split-heading, .desk-grid { grid-template-columns: 1fr; gap: 40px; }
  .era-grid { grid-template-columns: 1fr; }
  .entry-route { min-height: 270px; }
  .guide-hero { padding-top: 100px; }
  .guide-hero h1 { font-size: clamp(3.25rem, 16vw, 6.4rem); }
  .guide-section { padding: 64px 0; }
  .source-directory, .checklist { grid-template-columns: 1fr; }
  .entry-route-grid, .finder-form, .state-grid, .result-grid { grid-template-columns: 1fr; }
  .finder-form-actions { align-items: flex-start; flex-direction: column; }
  .result-topline { align-items: flex-start; flex-direction: column; gap: 8px; }
  .finder-source-list a { grid-template-columns: 1fr; gap: 8px; }
  .article-closure-actions { align-items: flex-start; flex-direction: column; }
  .era-card:nth-child(n) { grid-column: auto; }
  .method-grid { grid-template-columns: 1fr; }
  .method-grid article { min-height: 280px; }
  .method-grid h3 { margin-top: 70px; }
  .site-footer { grid-template-columns: 1fr; gap: 16px; }
  .site-footer > p:last-child { grid-column: auto; }
  .history-kicker { align-items: flex-start; flex-direction: column; gap: 8px; margin-bottom: 50px; }
  .history-hero h1 { font-size: clamp(3.7rem, 18vw, 7.5rem); }
  .history-metrics { grid-template-columns: 1fr; }
  .history-metrics div { min-height: 105px; }
  .history-layout { display: block; }
  .history-sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .sidebar-inner { position: static; max-height: none; padding: 32px 24px; }
  .chapter-nav { max-height: 260px; overflow: auto; }
  .research-note { grid-template-columns: 1fr; gap: 20px; }
  .history-section h2, .article-closure h2 { margin-bottom: 38px; font-size: clamp(2.4rem, 12vw, 4.4rem); }
}

@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; }
}