:root {
  --ink: #160f0d;
  --ink-soft: #241714;
  --wine: #4b171a;
  --wine-deep: #2b1011;
  --gold: #c7a564;
  --gold-soft: #e4c98e;
  --vellum: #e9e0cc;
  --paper: #f2ecdf;
  --smoke: #a89a84;
  --line: rgba(199, 165, 100, .25);
  --dark-line: rgba(22, 15, 13, .17);
  --serif: "Iowan Old Style", Baskerville, "Times New Roman", serif;
  --sans: "Avenir Next", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --shell: min(1240px, calc(100vw - 80px));
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; overflow-x: hidden; background: var(--ink); color: var(--vellum); font-family: var(--sans); font-size: 16px; line-height: 1.7; }
img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }

.skip { position: fixed; top: -80px; left: 20px; z-index: 100; padding: 10px 15px; background: var(--gold); color: var(--ink); font-weight: 800; }
.skip:focus { top: 18px; }
.page-shell { width: var(--shell); margin-inline: auto; }

.masthead { position: fixed; inset: 0 0 auto; z-index: 30; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: 82px; padding-inline: max(32px, calc((100vw - 1440px) / 2)); border-bottom: 1px solid var(--line); background: rgba(22, 15, 13, .9); backdrop-filter: blur(16px); }
.seal { justify-self: start; display: flex; align-items: center; gap: 12px; text-transform: uppercase; }
.seal-mark { display: grid; width: 35px; height: 35px; place-items: center; border: 1px solid var(--gold); border-radius: 50%; color: var(--gold-soft); font-family: var(--serif); font-size: .72rem; letter-spacing: .05em; }
.seal b, .seal small { display: block; line-height: 1.2; }
.seal b { color: var(--gold-soft); font-family: var(--serif); font-size: .94rem; font-weight: 500; letter-spacing: .08em; }
.seal small { color: var(--smoke); font-size: .57rem; letter-spacing: .28em; }
.masthead nav { display: flex; gap: 28px; }
.masthead nav a { color: rgba(233,224,204,.72); font-size: .72rem; font-weight: 700; letter-spacing: .06em; }
.masthead nav a:hover { color: var(--gold-soft); }
.return { justify-self: end; padding-bottom: 2px; border-bottom: 1px solid var(--line); color: var(--gold-soft); font-size: .69rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }

.hero { position: relative; isolation: isolate; display: grid; grid-template-columns: 1.05fr 1.15fr .56fr; min-height: 100svh; align-items: center; gap: 70px; padding: 145px max(40px, calc((100vw - 1280px) / 2)) 80px; overflow: hidden; background: radial-gradient(circle at 24% 45%, rgba(117,40,35,.3), transparent 32%), linear-gradient(115deg, var(--ink), #0d0908 65%); }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; opacity: .08; background-image: repeating-linear-gradient(0deg, transparent 0 6px, rgba(228,201,142,.22) 7px); }
.hero-lines { position: absolute; z-index: -1; top: 14%; right: 8%; width: 42vw; aspect-ratio: 1; opacity: .32; }
.hero-lines i { position: absolute; inset: 6%; border: 1px solid var(--gold); border-radius: 50%; }
.hero-lines i:nth-child(2) { transform: rotate(60deg) scaleX(.42); }
.hero-lines i:nth-child(3) { transform: rotate(-60deg) scaleX(.42); }
.portrait-wrap { position: relative; align-self: end; }
.portrait-wrap::after { content: ""; position: absolute; inset: -15px 15px 52px -15px; z-index: -1; border: 1px solid var(--line); }
.portrait-wrap img { max-height: 67vh; object-fit: cover; object-position: 50% 18%; filter: sepia(.5) saturate(.58) contrast(1.14) brightness(.72); mix-blend-mode: luminosity; }
.portrait-wrap p, .file-image p { margin: 14px 0 0; color: var(--smoke); font-size: .65rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; line-height: 1.5; }
.portrait-wrap p span, .file-image p span { color: rgba(168,154,132,.65); font-weight: 500; }
.folio, .section-label { margin: 0 0 24px; color: var(--gold); font-size: .67rem; font-weight: 850; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { margin: 0; color: var(--vellum); font-family: var(--serif); font-size: clamp(4.8rem, 8vw, 8.4rem); font-weight: 400; letter-spacing: -.055em; line-height: .8; }
.hero h1 em { color: var(--gold-soft); font-weight: 400; }
.lede { max-width: 650px; margin: 35px 0 0; color: rgba(233,224,204,.7); font-family: var(--serif); font-size: clamp(1.2rem, 1.7vw, 1.55rem); line-height: 1.55; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 38px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid var(--gold); background: var(--gold); color: var(--ink); font-size: .7rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; transition: transform .18s ease, background .18s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); background: var(--gold-soft); }
.underlink { border-bottom: 1px solid var(--line); color: var(--gold-soft); font-size: .76rem; }
.marginalia { display: grid; align-self: end; gap: 13px; padding-bottom: 25px; color: rgba(233,224,204,.48); font-size: .62rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.introduction { display: grid; grid-template-columns: .65fr 2.35fr; gap: 70px; padding-block: 132px; }
.introduction h2, .section-heading h2, .opening-file h2, .threshold h2 { margin: 0; font-family: var(--serif); font-weight: 400; letter-spacing: -.04em; line-height: 1; }
.introduction h2 { max-width: 920px; font-size: clamp(3rem, 5.3vw, 5.6rem); }
.introduction h2 em { color: var(--gold-soft); font-weight: 400; }
.introduction div > p { max-width: 780px; margin: 30px 0 0; color: var(--smoke); }

.cabinet { padding-block: 124px 142px; background: var(--paper); color: var(--ink); }
.cabinet .section-label, .opening-file .section-label { color: #8b5a24; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 56px; }
.section-heading h2 { font-size: clamp(2.8rem, 4.9vw, 5rem); }
.section-heading > p { max-width: 430px; margin: 0; color: #6f6253; font-size: .9rem; }
.drawers { border-top: 1px solid var(--dark-line); }
.drawers details { border-bottom: 1px solid var(--dark-line); }
.drawers summary { display: grid; grid-template-columns: 70px 1fr 1fr 28px; align-items: center; gap: 24px; min-height: 106px; padding: 20px 8px; cursor: pointer; list-style: none; }
.drawers summary::-webkit-details-marker { display: none; }
.drawers summary::after { content: "+"; justify-self: end; color: #8b5a24; font-size: 1.35rem; }
.drawers details[open] summary::after { content: "−"; }
.drawers summary > span { color: #9f7437; font-family: var(--serif); font-size: 1.25rem; }
.drawers summary strong { font-family: var(--serif); font-size: clamp(1.55rem, 2.4vw, 2.35rem); font-weight: 500; }
.drawers summary small { color: #726657; font-size: .68rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.drawer-content { max-width: 800px; margin-left: 94px; padding: 0 0 34px; animation: reveal .28s ease-out; }
.drawer-content p { color: #5f554a; }
.drawer-content a { border-bottom: 1px solid rgba(139,90,36,.35); color: #7b461b; font-size: .75rem; font-weight: 800; }

.opening-file { display: grid; grid-template-columns: .82fr 1.18fr; align-items: center; gap: 86px; padding-block: 142px; }
.file-image { position: relative; }
.file-image::before { content: ""; position: absolute; inset: -18px 18px 52px -18px; border: 1px solid var(--line); }
.file-image img { position: relative; aspect-ratio: 4 / 3; object-fit: cover; filter: sepia(.62) saturate(.55) contrast(1.13) brightness(.73); }
.opening-file h2 { font-size: clamp(3rem, 5vw, 5.2rem); }
.opening-file article > p:not(.section-label) { margin-top: 28px; color: var(--smoke); }
.opening-file dl { margin: 34px 0 0; border-top: 1px solid var(--line); }
.opening-file dl div { display: grid; grid-template-columns: 140px 1fr; gap: 25px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.opening-file dt { color: var(--gold); font-size: .65rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.opening-file dd { margin: 0; color: rgba(233,224,204,.72); font-size: .79rem; }

.method { padding-block: 124px 140px; background: var(--wine-deep); }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.evidence-grid article { min-height: 280px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.evidence-grid span { color: var(--gold); font-family: var(--serif); font-size: 2rem; }
.evidence-grid h3 { margin: 50px 0 12px; font-family: var(--serif); font-size: 2rem; font-weight: 500; }
.evidence-grid p { color: rgba(233,224,204,.64); font-size: .86rem; }

.threshold { padding: 120px 40px 130px; text-align: center; background: var(--vellum); color: var(--ink); }
.threshold .section-label { color: #8b5a24; }
.threshold h2 { font-size: clamp(3.2rem, 6.5vw, 6.7rem); }
.threshold .button { margin-top: 40px; }
.button.light { background: var(--ink); border-color: var(--ink); color: var(--vellum); }

footer { display: grid; grid-template-columns: 1fr auto auto; gap: 50px; align-items: end; padding: 48px max(32px, calc((100vw - 1280px) / 2)); border-top: 1px solid var(--line); background: #0d0908; color: rgba(233,224,204,.48); font-size: .64rem; }
footer b, footer span { display: block; }
footer b { color: var(--gold-soft); font-family: var(--serif); font-size: 1rem; font-weight: 500; }
footer > div span { margin-top: 4px; }

@keyframes reveal { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 1020px) {
  :root { --shell: min(100% - 48px, 900px); }
  .masthead { grid-template-columns: 1fr auto; padding: 14px 24px; }
  .masthead nav { grid-column: 1 / -1; grid-row: 2; padding-top: 9px; }
  .return { grid-column: 2; grid-row: 1; }
  .hero { grid-template-columns: .8fr 1.2fr; min-height: 900px; padding-top: 145px; }
  .marginalia { display: none; }
  .portrait-wrap img { max-height: 610px; }
  .drawers summary { grid-template-columns: 55px 1fr auto 25px; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100% - 36px); }
  html { scroll-padding-top: 120px; }
  .masthead { min-height: 112px; }
  .masthead nav { width: 100%; gap: 22px; overflow-x: auto; }
  .masthead nav a { white-space: nowrap; }
  .return { font-size: .6rem; }
  .hero { grid-template-columns: 1fr; min-height: 0; gap: 48px; padding: 165px 18px 85px; }
  .hero-copy { grid-row: 1; }
  .hero h1 { font-size: clamp(4.3rem, 21vw, 6.3rem); }
  .portrait-wrap { width: min(82%, 360px); margin-inline: auto; }
  .introduction { grid-template-columns: 1fr; gap: 12px; padding-block: 92px; }
  .cabinet, .method { padding-block: 90px 98px; }
  .section-heading { align-items: flex-start; flex-direction: column; margin-bottom: 38px; }
  .drawers summary { grid-template-columns: 42px 1fr 20px; gap: 14px; min-height: 92px; }
  .drawers summary small { display: none; }
  .drawer-content { margin-left: 56px; padding-right: 10px; }
  .opening-file { grid-template-columns: 1fr; gap: 70px; padding-block: 104px; }
  .file-image { width: calc(100% - 18px); margin-left: 18px; }
  .evidence-grid { grid-template-columns: 1fr; }
  .evidence-grid article { min-height: 230px; }
  .evidence-grid h3 { margin-top: 30px; }
  .threshold { padding: 90px 18px 100px; }
  footer { grid-template-columns: 1fr; gap: 24px; }
}

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