:root {
  color-scheme: light;
  --paper: #f3eee2;
  --paper-deep: #e9e1d0;
  --limestone: #d2c8b4;
  --peat: #21362c;
  --peat-deep: #17261f;
  --charcoal: #202522;
  --ink-muted: #62665e;
  --moss: #61715b;
  --oxblood: #7a3b31;
  --gold: #b59b62;
  --line: rgba(32, 37, 34, .2);
  --line-dark: rgba(243, 238, 226, .22);
  --focus: #bd5b3d;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --content: 76rem;
  --reading: 46rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent 4px, rgba(61, 53, 41, .018) 5px);
  content: "";
  pointer-events: none;
}

img { display: block; max-width: 100%; }
a { color: var(--peat); text-underline-offset: .2em; }
a:hover { color: var(--oxblood); }
button, input { font: inherit; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: var(--space-4);
  top: -5rem;
  z-index: 100;
  background: var(--paper);
  color: var(--charcoal);
  padding: var(--space-3) var(--space-4);
  font-family: var(--sans);
  font-weight: 700;
}
.skip-link:focus { top: var(--space-4); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  padding: var(--space-3) max(5vw, var(--space-5));
  border-bottom: 1px solid var(--line);
  background: rgba(243, 238, 226, .96);
}

.site-mark {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--charcoal);
  text-decoration: none;
}
.site-mark:hover { color: var(--charcoal); }
.site-mark strong { display: block; font-size: 1.35rem; line-height: 1; }
.site-mark small {
  display: block;
  margin-top: .2rem;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: .67rem;
  letter-spacing: .13em;
  line-height: 1;
  text-transform: uppercase;
}
.site-mark__monogram {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid var(--peat);
  border-radius: 50%;
  font-size: 1.4rem;
  font-style: italic;
}

.site-nav { display: flex; flex-wrap: wrap; gap: var(--space-5); }
.site-nav a {
  position: relative;
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -.65rem;
  left: 0;
  height: 2px;
  background: var(--oxblood);
  content: "";
  opacity: 0;
  transform: scaleX(.3);
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--charcoal); }
.site-nav a[aria-current="page"]::after { opacity: 1; transform: scaleX(1); }

.menu-toggle {
  display: none;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--charcoal);
  background: transparent;
  color: var(--charcoal);
  font-family: var(--sans);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 var(--space-4);
  color: var(--oxblood);
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .16em;
  line-height: 1.3;
  text-transform: uppercase;
}
.eyebrow--light { color: #d5c498; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
h1 { font-size: clamp(3rem, 8vw, 7rem); font-weight: 500; letter-spacing: -.045em; line-height: .94; }
h2 { font-size: clamp(2rem, 4.5vw, 4rem); font-weight: 500; letter-spacing: -.03em; line-height: 1.02; }
h3 { font-size: 1.45rem; line-height: 1.15; }

.page-hero {
  width: min(var(--content), 90vw);
  margin: 0 auto;
  padding: var(--space-9) 0 var(--space-8);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { max-width: 13ch; margin-bottom: var(--space-6); }
.page-hero > p:last-child { max-width: 42rem; margin-bottom: 0; color: var(--ink-muted); font-size: 1.25rem; }

.section { width: min(var(--reading), 90vw); margin: 0 auto; padding: var(--space-9) 0; }
.section--wide { width: min(var(--content), 90vw); }
.section--split {
  display: grid;
  width: min(var(--content), 90vw);
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: var(--space-8);
}
.section--split h2 { max-width: 12ch; }
.prose { max-width: 39rem; }
.prose p { font-size: 1.14rem; }

.home-hero {
  display: grid;
  min-height: calc(100vh - 5rem);
  grid-template-columns: minmax(0, 1.2fr) minmax(20rem, .8fr);
  background: var(--peat);
  color: var(--paper);
}
.home-hero__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-9) max(6vw, var(--space-6));
}
.home-hero h1 { max-width: 9ch; margin-bottom: var(--space-6); }
.home-hero__lede { max-width: 38rem; color: #ddd5c5; font-size: 1.25rem; }
.home-hero__actions { display: flex; align-items: center; gap: var(--space-6); margin-top: var(--space-5); }
.button {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  padding: var(--space-3) var(--space-5);
  border: 1px solid currentColor;
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}
.button--paper { background: var(--paper); color: var(--peat); }
.button--paper:hover { background: #fffaf0; color: var(--oxblood); }
.text-link { font-family: var(--sans); font-size: .82rem; font-weight: 800; letter-spacing: .04em; }
.text-link--light { color: var(--paper); }
.text-link--light:hover { color: #fff; }

.record-window {
  position: relative;
  display: flex;
  min-width: 0;
  margin: 0;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--paper-deep);
}
.record-window::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 55%, rgba(23, 38, 31, .72));
  content: "";
  pointer-events: none;
}
.record-window img { width: 100%; height: 100%; object-fit: cover; filter: sepia(.22) contrast(1.08); }
.record-window figcaption {
  position: absolute;
  right: var(--space-6);
  bottom: var(--space-6);
  left: var(--space-6);
  z-index: 1;
  color: var(--paper);
  font-size: .95rem;
}
.record-window figcaption span { display: block; margin-bottom: var(--space-2); color: #d5c498; font-family: var(--sans); font-size: .68rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }

.route-strip { padding: var(--space-6) max(5vw, var(--space-5)); border-bottom: 1px solid var(--line); }
.route-strip__label { margin-bottom: var(--space-4); color: var(--ink-muted); font-family: var(--sans); font-size: .7rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.route-strip ol { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(4, 1fr); list-style: none; }
.route-strip li { position: relative; padding: 0 var(--space-5); border-left: 1px solid var(--line); }
.route-strip li:first-child { padding-left: 0; border-left: 0; }
.route-strip span { display: block; color: var(--oxblood); font-family: var(--sans); font-size: .65rem; }
.route-strip strong { display: block; font-size: 1.35rem; }
.route-strip small { color: var(--ink-muted); font-family: var(--sans); font-size: .74rem; }

.archive-summary {
  display: grid;
  padding: var(--space-9) max(5vw, var(--space-5));
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: var(--space-8);
  background: var(--peat-deep);
  color: var(--paper);
}
.archive-summary__heading h2 { max-width: 13ch; }
.archive-stats { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-dark); }
.archive-stat { padding: var(--space-6) 0; border-bottom: 1px solid var(--line-dark); }
.archive-stat:nth-child(odd) { padding-right: var(--space-6); border-right: 1px solid var(--line-dark); }
.archive-stat:nth-child(even) { padding-left: var(--space-6); }
.archive-stat strong { display: block; color: #d5c498; font-size: clamp(2.6rem, 5vw, 4.5rem); font-weight: 500; line-height: 1; }
.archive-stat span { color: #c5c1b7; font-family: var(--sans); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }
.privacy-note { text-align: center; }
.privacy-note h2 { margin-right: auto; margin-left: auto; }
.privacy-note p:last-child { max-width: 36rem; margin-right: auto; margin-left: auto; color: var(--ink-muted); }

.confidence-key {
  width: min(var(--content), 90vw);
  margin: var(--space-6) auto 0;
  padding: var(--space-5);
  border: 1px solid var(--line);
}
.confidence-key h2 { font-family: var(--sans); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.confidence-key ul { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); list-style: none; }
.confidence-key li > span:last-child { display: block; margin-top: var(--space-2); color: var(--ink-muted); font-size: .82rem; }
.confidence {
  display: inline-block;
  padding: .3rem .5rem;
  border: 1px solid currentColor;
  color: var(--moss);
  font-family: var(--sans);
  font-size: .63rem;
  font-weight: 800;
  letter-spacing: .08em;
  line-height: 1.2;
  text-transform: uppercase;
}
.confidence--proven { color: #345c46; }
.confidence--strongly-supported { color: #506b3d; }
.confidence--working-hypothesis { color: #846d2a; }
.confidence--conflicting-evidence { color: var(--oxblood); }

.family-tree { display: grid; gap: 0; }
.tree-generation {
  position: relative;
  display: grid;
  padding: var(--space-7) 0;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: var(--space-7);
  border-top: 1px solid var(--line);
}
.tree-generation::before { position: absolute; top: 0; bottom: 0; left: 11.5rem; width: 1px; background: var(--line); content: ""; }
.tree-generation__label { color: var(--ink-muted); font-family: var(--sans); font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.tree-generation__people { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.tree-person { position: relative; min-width: 0; padding: var(--space-5); border: 1px solid var(--line); background: rgba(255, 255, 255, .22); }
.tree-person::before { position: absolute; top: 2rem; left: -1.55rem; width: 1.5rem; height: 1px; background: var(--line); content: ""; }
.tree-person h3 { margin-bottom: var(--space-2); }
.tree-person p { margin-bottom: var(--space-3); color: var(--ink-muted); font-size: .86rem; }
.tree-person--direct { border-top: 3px solid var(--oxblood); background: rgba(255, 255, 255, .48); }
.boundary-callout, .theory-principle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-7);
  padding: var(--space-8) max(7vw, var(--space-5));
  background: var(--peat);
  color: var(--paper);
  text-align: center;
}
.boundary-callout h2 { max-width: 16ch; margin: 0; }
.boundary-callout p:last-child { max-width: 28rem; margin: 0; color: #d2ccbf; }

.timeline-intro {
  display: grid;
  width: min(var(--content), 90vw);
  margin: var(--space-7) auto 0;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
}
.timeline-intro > div { padding: var(--space-4); border-top: 2px solid var(--oxblood); }
.timeline-intro strong, .timeline-intro small, .map-coordinate { display: block; }
.timeline-intro strong { font-size: 1.3rem; }
.timeline-intro small, .map-coordinate { color: var(--ink-muted); font-family: var(--sans); font-size: .68rem; letter-spacing: .07em; text-transform: uppercase; }
.section--timeline { width: min(64rem, 90vw); }
.timeline { position: relative; }
.timeline::before { position: absolute; top: 0; bottom: 0; left: 8.2rem; width: 1px; background: var(--line); content: ""; }
.timeline-event { position: relative; display: grid; padding: 0 0 var(--space-8); grid-template-columns: 6.5rem minmax(0, 1fr); gap: var(--space-7); }
.timeline-event::before { position: absolute; top: .45rem; left: 7.88rem; width: .65rem; height: .65rem; border: 2px solid var(--paper); border-radius: 50%; background: var(--oxblood); box-shadow: 0 0 0 1px var(--oxblood); content: ""; }
.timeline-event__date { color: var(--oxblood); font-family: var(--sans); font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-align: right; text-transform: uppercase; }
.timeline-event__body { padding-left: var(--space-5); }
.timeline-event__place { color: var(--ink-muted); font-family: var(--sans); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.timeline-event h2 { margin: var(--space-2) 0 var(--space-3); font-size: clamp(1.7rem, 3vw, 2.5rem); }
.timeline-event p { max-width: 42rem; }

.people-tools {
  display: grid;
  width: min(var(--content), 90vw);
  margin: var(--space-7) auto 0;
  grid-template-columns: auto minmax(15rem, 28rem) 1fr;
  align-items: center;
  gap: var(--space-4);
}
.people-tools label { font-family: var(--sans); font-size: .74rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.people-tools p { margin: 0; color: var(--ink-muted); font-family: var(--sans); font-size: .78rem; text-align: right; }
.search-field { position: relative; }
.search-field input { width: 100%; min-height: 3rem; padding: var(--space-3) 2.75rem var(--space-3) var(--space-4); border: 1px solid var(--charcoal); border-radius: 0; background: transparent; color: var(--charcoal); }
.search-field span { position: absolute; top: .5rem; right: var(--space-3); font-size: 1.4rem; }
.people-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.person-card { min-width: 0; padding: var(--space-6); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.person-card__number { display: block; margin-bottom: var(--space-7); color: var(--oxblood); font-family: var(--sans); font-size: .68rem; letter-spacing: .1em; }
.person-card h2 { margin-bottom: var(--space-2); font-size: 1.8rem; }
.person-card__lifespan { color: var(--ink-muted); font-family: var(--sans); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; }
.person-card__summary { margin: var(--space-5) 0; font-size: .96rem; }
.person-card details { border-top: 1px solid var(--line); padding-top: var(--space-3); }
.person-card summary { cursor: pointer; font-family: var(--sans); font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.claim { margin-top: var(--space-4); }
.claim p { margin: var(--space-2) 0; font-size: .86rem; }
.claim small { color: var(--ink-muted); font-family: var(--sans); font-size: .68rem; }
.empty-state { grid-column: 1 / -1; padding: var(--space-8); text-align: center; }

.source-method { width: min(var(--content), 90vw); margin: 0 auto; padding: var(--space-8) 0; border-bottom: 1px solid var(--line); }
.source-list { border-top: 1px solid var(--line); }
.source-entry { display: grid; padding: var(--space-6) 0; grid-template-columns: 3rem minmax(0, 1.2fr) minmax(15rem, .8fr); gap: var(--space-5); border-bottom: 1px solid var(--line); }
.source-entry__number { color: var(--oxblood); font-family: var(--sans); font-size: .7rem; }
.source-entry h2 { margin-bottom: var(--space-2); font-size: 1.55rem; }
.source-entry__meta { color: var(--ink-muted); font-family: var(--sans); font-size: .72rem; letter-spacing: .04em; }
.source-entry__supports { margin: 0; padding-left: var(--space-5); font-size: .88rem; }
.source-entry__link { display: inline-block; margin-top: var(--space-3); font-family: var(--sans); font-size: .72rem; font-weight: 800; }

.theory-principle > span { color: #d5c498; font-size: clamp(5rem, 10vw, 9rem); font-style: italic; line-height: .8; }
.theory-principle h2 { max-width: 16ch; margin: 0; text-align: left; }
.theory-card { display: grid; padding: var(--space-8) 0; grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); gap: var(--space-8); border-top: 1px solid var(--line); }
.theory-card__title h2 { margin: var(--space-4) 0; font-size: clamp(2rem, 4vw, 3.5rem); }
.theory-card__thesis { color: var(--ink-muted); font-size: 1.1rem; }
.theory-columns { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.theory-column { padding-top: var(--space-4); border-top: 2px solid var(--moss); }
.theory-column--conflict { border-color: var(--oxblood); }
.theory-column h3 { font-family: var(--sans); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; }
.theory-column ul { margin: 0; padding-left: var(--space-5); font-size: .9rem; }
.next-record { margin-top: var(--space-6); padding: var(--space-5); border-left: 3px solid var(--gold); background: var(--paper-deep); }
.next-record strong { display: block; margin-bottom: var(--space-2); font-family: var(--sans); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
.evidence-ids { margin-top: var(--space-4); color: var(--ink-muted); font-family: var(--sans); font-size: .68rem; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-6) max(5vw, var(--space-5));
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-family: var(--sans);
  font-size: .74rem;
}
.site-footer p { margin: 0; }

@media (max-width: 980px) {
  .home-hero { min-height: auto; grid-template-columns: 1fr; }
  .record-window { min-height: 34rem; }
  .archive-summary, .section--split, .theory-card { grid-template-columns: 1fr; }
  .confidence-key ul { grid-template-columns: repeat(2, 1fr); }
  .tree-generation__people, .people-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .source-entry { grid-template-columns: 3rem 1fr; }
  .source-entry__supports { grid-column: 2; }
}

@media (max-width: 760px) {
  :root { --space-9: 4.5rem; }
  body { font-size: 1rem; }
  .site-header { flex-wrap: wrap; }
  .menu-toggle { display: block; }
  .site-nav { display: none; width: 100%; padding: var(--space-3) 0; grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: var(--space-2) 0; }
  .site-nav a::after { bottom: 0; }
  .home-hero__copy { padding: var(--space-8) 6vw; }
  .home-hero h1 { font-size: clamp(3.5rem, 17vw, 5.5rem); }
  .home-hero__actions { align-items: flex-start; flex-direction: column; gap: var(--space-4); }
  .record-window { min-height: 26rem; }
  .route-strip ol { grid-template-columns: repeat(2, 1fr); row-gap: var(--space-5); }
  .route-strip li:nth-child(3) { padding-left: 0; border-left: 0; }
  .archive-stats, .people-grid, .tree-generation__people, .theory-columns { grid-template-columns: 1fr; }
  .archive-stat:nth-child(odd), .archive-stat:nth-child(even) { padding-right: 0; padding-left: 0; border-right: 0; }
  .confidence-key ul { grid-template-columns: 1fr; }
  .tree-generation { grid-template-columns: 1fr; gap: var(--space-4); }
  .tree-generation::before, .tree-person::before { display: none; }
  .timeline-intro { grid-template-columns: 1fr; }
  .timeline-intro > span { display: none; }
  .timeline { padding-left: var(--space-3); }
  .timeline::before { left: .25rem; }
  .timeline-event { grid-template-columns: 1fr; gap: var(--space-3); padding-left: var(--space-5); }
  .timeline-event::before { left: -.08rem; }
  .timeline-event__date { text-align: left; }
  .timeline-event__body { padding-left: 0; }
  .people-tools { grid-template-columns: 1fr; }
  .people-tools p { text-align: left; }
  .source-entry { grid-template-columns: 2rem 1fr; }
  .source-entry__supports { grid-column: 1 / -1; }
  .theory-principle { align-items: flex-start; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 420px) {
  .site-mark small { display: none; }
  .home-hero h1, h1 { font-size: 3.2rem; }
  .route-strip ol { grid-template-columns: 1fr; }
  .route-strip li, .route-strip li:nth-child(3) { padding-left: 0; border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media print {
  .site-header, .site-footer, .people-tools, .home-hero__actions { display: none; }
  body { background: #fff; color: #000; }
  .page-hero, .section { width: 100%; padding: 2rem 0; }
  a { color: #000; }
}