:root {
  --ink: #172820;
  --ink-soft: #3f5149;
  --paper: #f1ede2;
  --paper-deep: #e2dbc9;
  --moss: #294c3d;
  --moss-light: #436a57;
  --copper: #b56d38;
  --gold: #d5b36a;
  --line: rgba(23, 40, 32, 0.18);
  --white: #faf8f1;
  --display: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
img { max-width: 100%; display: block; }
button { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 99;
  top: 1rem;
  left: 1rem;
  transform: translateY(-180%);
  padding: .7rem 1rem;
  background: var(--ink);
  color: white;
}
.skip-link:focus { transform: none; }

.site-header {
  width: min(calc(100% - 40px), var(--max));
  min-height: 92px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--display);
  font-size: .88rem;
  letter-spacing: .06em;
}
.brand strong, .brand small { display: block; }
.brand strong { font-family: var(--display); font-size: 1.08rem; }
.brand small { color: var(--ink-soft); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; }

nav { display: flex; flex-wrap: wrap; gap: clamp(1rem, 3vw, 2.4rem); }
nav a, .footer-links a { font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
nav a:hover, nav a:focus-visible, .footer-links a:hover { color: var(--copper); }

main > section, main > aside, footer {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: .85fr 1.45fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 7rem);
  padding: 76px 0 96px;
}
.eyebrow {
  margin: 0 0 1.1rem;
  color: var(--copper);
  font-size: .71rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(5rem, 10vw, 9.5rem);
  font-weight: 400;
  letter-spacing: -.075em;
  line-height: .73;
}
.hero-intro {
  max-width: 31rem;
  margin: 2.2rem 0 1.7rem;
  color: var(--ink-soft);
  font-family: var(--display);
  font-size: clamp(1.15rem, 1.8vw, 1.55rem);
  line-height: 1.45;
}
.text-link { font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.text-link span { display: inline-block; margin-left: .45rem; color: var(--copper); }
.text-link:hover span { transform: translateY(2px); }

.hero-figure {
  position: relative;
  margin: 0;
  min-height: 480px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 55% 45% 48% 52% / 43% 52% 48% 57%;
  background:
    radial-gradient(circle at 70% 25%, rgba(213,179,106,.4), transparent 30%),
    linear-gradient(145deg, #244637, #14281f 70%);
  box-shadow: 0 36px 70px rgba(23,40,32,.22);
}
.hero-figure::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(105deg, transparent 0 26px, rgba(255,255,255,.025) 27px 28px);
  pointer-events: none;
}
.hero-figure img { width: 88%; mix-blend-mode: screen; filter: sepia(.25) contrast(1.1); }
.hero-figure figcaption {
  position: absolute;
  left: 2.3rem;
  bottom: 1.5rem;
  color: rgba(250,248,241,.58);
  font-size: .64rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-weight {
  position: absolute;
  z-index: 2;
  top: 1.5rem;
  right: 1.8rem;
  padding: .9rem 1.1rem;
  border: 1px solid rgba(250,248,241,.28);
  border-radius: 999px;
  color: var(--white);
  background: rgba(10,25,18,.2);
  backdrop-filter: blur(8px);
}
.hero-weight span { font-family: var(--display); font-size: 1.4rem; }
.hero-weight small { margin-left: .3rem; font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; }

.record-contrast {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.section-heading, .record-card { min-height: 590px; padding: clamp(2rem, 4vw, 3.7rem); background: var(--white); }
.section-heading { display: flex; flex-direction: column; justify-content: flex-end; background: var(--paper-deep); }
.section-heading h2, .ledger h2, .timeline h2, .method h2, .species-note h2, .inner-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.7rem, 5vw, 5rem);
  font-weight: 400;
  letter-spacing: -.055em;
  line-height: .96;
}
.section-heading > p:last-child { max-width: 30rem; margin: 2rem 0 0; color: var(--ink-soft); }
.record-card { position: relative; display: flex; flex-direction: column; }
.record-card--scene { color: var(--white); background: var(--moss); }
.record-card--official { background: #e8c98c; }
.record-label { font-size: .66rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.record-number { margin-top: auto; font-family: var(--display); font-size: clamp(4rem, 7vw, 7rem); line-height: .85; letter-spacing: -.06em; }
.record-number span { font-family: var(--sans); font-size: .8rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.record-card h3 { margin: 1.6rem 0 .9rem; font-family: var(--display); font-size: 1.6rem; font-weight: 400; }
.record-card dl { margin: 0; border-top: 1px solid currentColor; border-color: rgba(23,40,32,.2); }
.record-card--scene dl { border-color: rgba(255,255,255,.22); }
.record-card dl div { display: flex; justify-content: space-between; gap: 1rem; padding: .62rem 0; border-bottom: 1px solid rgba(23,40,32,.14); font-size: .76rem; }
.record-card--scene dl div { border-color: rgba(255,255,255,.13); }
.record-card dt { opacity: .66; }
.record-card dd { margin: 0; text-align: right; font-weight: 700; }
.record-note { min-height: 6rem; margin: 1.2rem 0; font-size: .76rem; opacity: .75; }
.record-card > a { font-size: .7rem; font-weight: 800; text-underline-offset: .3rem; }

.ledger { padding: 130px 0; }
.ledger-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 3rem; }
.unit-switch { display: inline-flex; padding: .25rem; border: 1px solid var(--line); border-radius: 999px; }
.unit-switch button { min-width: 3.5rem; border: 0; border-radius: 999px; padding: .6rem .9rem; color: var(--ink); background: transparent; cursor: pointer; font-size: .72rem; font-weight: 800; text-transform: uppercase; }
.unit-switch button.is-active { color: var(--paper); background: var(--ink); }
.table-wrap { overflow-x: auto; border-top: 2px solid var(--ink); }
table { width: 100%; border-collapse: collapse; min-width: 820px; }
th, td { padding: 1.2rem 1rem; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--ink-soft); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; }
td { font-size: .84rem; }
td:first-child { padding-left: 0; }
th:first-child { padding-left: 0; }
.weight { font-family: var(--display); font-size: 1.7rem; white-space: nowrap; }
.official-row { background: rgba(213,179,106,.16); }
.status { display: inline-block; padding: .28rem .55rem; border-radius: 999px; font-size: .58rem; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.status--scene { color: var(--white); background: var(--moss); }
.status--official { color: var(--ink); background: var(--gold); }
.status--reported { border: 1px solid var(--line); }
.fine-print { max-width: 52rem; color: var(--ink-soft); font-size: .72rem; }

.timeline { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(3rem, 9vw, 9rem); padding: 120px 0; border-top: 1px solid var(--line); }
.timeline-intro > p:last-child { max-width: 25rem; color: var(--ink-soft); }
.timeline ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.timeline li { display: grid; grid-template-columns: 90px 1fr; gap: 1.5rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--copper); font-family: var(--display); font-size: 1.6rem; }
.timeline strong, .timeline span { display: block; }
.timeline strong { font-family: var(--display); font-size: 1.35rem; font-weight: 400; }
.timeline span { margin-top: .25rem; color: var(--ink-soft); font-size: .8rem; }

.method { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(3rem, 8vw, 7rem); padding: 110px clamp(1.5rem, 5vw, 5rem); color: var(--white); background: var(--ink); }
.method-copy > p:not(.eyebrow) { max-width: 31rem; color: rgba(250,248,241,.7); }
.method .text-link { display: inline-block; margin-top: 1rem; }
.method-grid { display: grid; grid-template-columns: 1fr 1fr; }
.method-grid article { min-height: 200px; padding: 1.5rem; border: 1px solid rgba(255,255,255,.15); }
.method-grid span { color: var(--gold); font-size: .66rem; font-weight: 800; letter-spacing: .1em; }
.method-grid h3 { margin: 2.7rem 0 .4rem; font-family: var(--display); font-size: 1.55rem; font-weight: 400; }
.method-grid p { margin: 0; color: rgba(250,248,241,.65); font-size: .76rem; }

.species-note { display: grid; grid-template-columns: auto 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; padding: 120px 0; }
.species-note__mark { color: var(--copper); font-family: var(--display); font-size: clamp(6rem, 15vw, 14rem); line-height: .7; }
.species-note p:last-child { max-width: 45rem; color: var(--ink-soft); }

footer { display: grid; grid-template-columns: 1fr auto; gap: 3rem; padding: 55px 0 45px; border-top: 1px solid var(--line); }
footer strong { font-family: var(--display); font-size: 1.3rem; }
footer p { max-width: 36rem; margin: .4rem 0 0; color: var(--ink-soft); font-size: .74rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-meta { grid-column: 1 / -1; padding-top: 1rem; border-top: 1px solid var(--line); }

.inner-hero { padding: 100px 0 70px; border-bottom: 1px solid var(--line); }
.inner-hero p { max-width: 48rem; color: var(--ink-soft); font-family: var(--display); font-size: 1.35rem; }
.prose { max-width: 860px; padding: 80px 0 120px; }
.prose h2 { margin: 3rem 0 1rem; font-family: var(--display); font-size: 2.2rem; font-weight: 400; }
.prose p, .prose li { color: var(--ink-soft); }
.prose a { text-underline-offset: .22rem; }
.source-card { margin: 1.2rem 0; padding: 1.3rem 1.5rem; border: 1px solid var(--line); background: rgba(250,248,241,.55); }
.source-card h3 { margin: 0 0 .35rem; font-family: var(--display); font-size: 1.25rem; font-weight: 400; }
.source-card p { margin: 0; font-size: .78rem; }
.source-card a { display: inline-block; margin-top: .75rem; color: var(--copper); font-size: .72rem; font-weight: 800; }

@media (max-width: 900px) {
  .site-header { padding: 1rem 0; align-items: flex-start; }
  .site-header nav { justify-content: flex-end; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-figure { min-height: 420px; }
  .record-contrast { grid-template-columns: 1fr; }
  .section-heading, .record-card { min-height: 500px; }
  .timeline, .method { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-header { display: block; }
  .site-header nav { margin-top: 1rem; justify-content: flex-start; gap: .9rem 1.2rem; }
  .hero { padding-top: 55px; }
  .hero h1 { font-size: clamp(4.4rem, 25vw, 7rem); }
  .hero-figure { min-height: 330px; border-radius: 42% 58% 48% 52% / 44% 40% 60% 56%; }
  .hero-weight { top: 1rem; right: 1rem; }
  .hero-figure figcaption { left: 1.2rem; max-width: 70%; }
  .ledger { padding: 90px 0; }
  .ledger-head { align-items: flex-start; flex-direction: column; }
  .timeline { padding: 90px 0; }
  .method { width: 100%; padding: 80px 20px; }
  .method-grid { grid-template-columns: 1fr; }
  .species-note { grid-template-columns: 1fr; }
  .species-note__mark { font-size: 8rem; }
  footer { grid-template-columns: 1fr; }
  .footer-meta { grid-column: 1; }
}

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