:root {
  --ink: #151515;
  --paper: #e8e1d3;
  --paper-light: #f4efe5;
  --paper-dark: #c9c0b1;
  --red: #9d1f21;
  --red-dark: #6f1113;
  --muted: #666057;
  --line: rgba(21, 21, 21, .2);
  --shadow: 0 18px 50px rgba(0,0,0,.22);
  --display: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  --mono: "Courier New", Courier, monospace;
  --body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper) url("assets/paper-grid.svg");
  font-family: var(--body);
  line-height: 1.62;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }

.skip-link {
  position: fixed; left: 1rem; top: -6rem; z-index: 100;
  background: var(--ink); color: white; padding: .75rem 1rem;
}
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: .8rem clamp(1rem, 4vw, 4rem);
  background: rgba(21,21,21,.96); color: var(--paper-light);
  border-bottom: 3px solid var(--red);
  backdrop-filter: blur(12px);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; font-family: var(--mono); font-weight: 700; letter-spacing: .04em; }
.brand img { width: 42px; height: 42px; }
.nav { display: flex; gap: 1.25rem; align-items: center; }
.nav a { text-decoration: none; font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; }
.nav a:hover, .nav a:focus-visible { color: #ffb4b4; }
.menu-toggle { display: none; border: 1px solid #777; background: transparent; color: white; padding: .45rem .65rem; }

.hero {
  min-height: 84vh;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 7rem);
  padding: clamp(4rem, 8vw, 8rem) clamp(1.2rem, 6vw, 7rem);
  background:
    linear-gradient(115deg, rgba(21,21,21,.97) 0 62%, rgba(21,21,21,.9) 62%),
    url("assets/paper-grid.svg");
  color: var(--paper-light);
  overflow: hidden;
}
.kicker { font: 700 .8rem/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: #e07778; }
h1, h2, h3 { line-height: 1.03; }
h1 {
  max-width: 13ch; margin: .5rem 0 1.25rem;
  font-family: var(--display); font-size: clamp(4rem, 10vw, 9.5rem);
  text-transform: uppercase; letter-spacing: -.025em;
}
.hero-copy { max-width: 760px; font-size: clamp(1.05rem, 1.6vw, 1.35rem); color: #d5cec2; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.button {
  display: inline-block; padding: .8rem 1.1rem; border: 2px solid var(--paper-light);
  font: 700 .82rem/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; text-decoration: none;
}
.button.primary { background: var(--red); border-color: var(--red); color: white; }
.button:hover { transform: translateY(-2px); box-shadow: 5px 5px 0 rgba(255,255,255,.15); }
.hero-art { position: relative; }
.hero-art img { width: min(100%, 520px); margin-inline: auto; filter: drop-shadow(0 25px 45px rgba(0,0,0,.35)); transform: rotate(3deg); }
.hero-art::before, .hero-art::after { content: ""; position: absolute; background: var(--red); opacity: .8; }
.hero-art::before { width: 220%; height: 14px; left: -60%; top: 14%; transform: rotate(-9deg); }
.hero-art::after { width: 12px; height: 180%; left: 75%; top: -35%; transform: rotate(12deg); }

.section { padding: clamp(4rem, 7vw, 7rem) clamp(1.2rem, 6vw, 7rem); }
.section.dark { background: var(--ink); color: var(--paper-light); }
.section-heading { max-width: 920px; margin-bottom: 2.5rem; }
.section-heading h2 { margin: .2rem 0 1rem; font-family: var(--display); font-size: clamp(3rem, 6vw, 6rem); text-transform: uppercase; }
.section-heading p { max-width: 70ch; font-size: 1.08rem; color: var(--muted); }
.dark .section-heading p { color: #bdb5aa; }

.provenance-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.statement-card, .method-card {
  background: var(--paper-light); border: 1px solid var(--line); padding: clamp(1.5rem, 3vw, 2.5rem); box-shadow: 8px 8px 0 rgba(21,21,21,.08);
}
.statement-card h3, .method-card h3 { margin-top: 0; font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.statement-card strong { color: var(--red-dark); }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 2rem; }
.stat { border-top: 5px solid var(--red); padding: 1rem 0; }
.stat b { display: block; font: 700 clamp(2.3rem, 5vw, 4rem)/1 var(--display); }
.stat span { display: block; margin-top: .55rem; font: .75rem/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

.timeline-tools { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: space-between; margin: 2rem 0; }
.search { min-width: min(100%, 360px); flex: 1; padding: .85rem 1rem; background: var(--paper-light); color: var(--ink); border: 2px solid var(--ink); }
.filter-group { display: flex; gap: .5rem; flex-wrap: wrap; }
.filter-button { background: transparent; color: inherit; border: 1px solid currentColor; padding: .7rem .9rem; cursor: pointer; font: 700 .75rem/1 var(--mono); text-transform: uppercase; }
.filter-button[aria-pressed="true"] { background: var(--red); border-color: var(--red); color: white; }

.timeline { position: relative; max-width: 1120px; margin-inline: auto; }
.timeline::before { content: ""; position: absolute; left: 115px; top: 0; bottom: 0; width: 3px; background: var(--red); }
.timeline-item { display: grid; grid-template-columns: 90px minmax(0,1fr); gap: 3rem; position: relative; padding: 0 0 2rem; }
.timeline-year { font: 700 1.35rem/1 var(--mono); text-align: right; padding-top: .4rem; }
.timeline-item::after { content: ""; position: absolute; left: 106px; top: .45rem; width: 20px; height: 20px; background: var(--paper-light); border: 5px solid var(--red); border-radius: 50%; }
.timeline-card { background: #222; border: 1px solid #444; padding: 1.4rem 1.5rem; box-shadow: 10px 10px 0 #0b0b0b; }
.timeline-card h3 { margin: 0 0 .6rem; font-size: 1.45rem; }
.timeline-card p { color: #cfc8bd; margin-bottom: .75rem; }
.badges { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
.badge { padding: .3rem .5rem; border: 1px solid #696969; font: 700 .65rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.badge.document { color: #ffb4b4; border-color: #9d1f21; }
.evidence-link { color: #ffb4b4; text-underline-offset: 3px; font-weight: 700; }
.timeline-empty { display: none; padding: 2rem; border: 1px dashed #777; color: #cfc8bd; }

.evidence-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1.5rem; }
.evidence-card { background: var(--paper-light); border: 1px solid var(--line); display: grid; grid-template-rows: 220px 1fr; overflow: hidden; box-shadow: 7px 7px 0 rgba(21,21,21,.08); }
.evidence-thumb { overflow: hidden; background: #d6cebf; }
.evidence-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.evidence-card:hover img { transform: scale(1.035) rotate(-.5deg); }
.evidence-body { padding: 1.25rem; }
.evidence-body h3 { margin: 0 0 .5rem; }
.evidence-body p { color: var(--muted); }
.evidence-body a { display: inline-block; margin-top: .8rem; font: 700 .75rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--red-dark); }

.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.method-card { box-shadow: none; }
.method-card .number { font: 700 3rem/1 var(--display); color: var(--red); }

.callout { margin-top: 2rem; border-left: 8px solid var(--red); background: rgba(157,31,33,.08); padding: 1.3rem 1.5rem; }
.callout p { margin: 0; }

.site-footer { background: #0c0c0c; color: #bdb5aa; padding: 3rem clamp(1.2rem, 6vw, 7rem); border-top: 4px solid var(--red); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; }
.site-footer strong { color: white; }
.site-footer small { display: block; max-width: 85ch; }

.visually-hidden { position: absolute !important; height: 1px; width: 1px; overflow: hidden; clip: rect(1px,1px,1px,1px); white-space: nowrap; }
[hidden] { display: none !important; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-art { max-width: 420px; }
  .provenance-grid, .method-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2,1fr); }
  .evidence-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 1rem; background: #151515; flex-direction: column; align-items: flex-start; }
  .nav.open { display: flex; }
  .menu-toggle { display: inline-block; }
}

@media (max-width: 640px) {
  h1 { font-size: clamp(3.6rem, 18vw, 6rem); }
  .hero { padding-top: 3rem; }
  .stats, .evidence-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 17px; }
  .timeline-item { grid-template-columns: 1fr; gap: .5rem; padding-left: 3rem; }
  .timeline-year { text-align: left; }
  .timeline-item::after { left: 8px; top: .45rem; }
  .footer-grid { grid-template-columns: 1fr; }
}

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