:root {
  color-scheme: dark;
  --ink: #070808;
  --paper: #f3eee4;
  --muted: #b7afa2;
  --line: rgba(202, 171, 103, .27);
  --gold: #caaa67;
  --gold-bright: #e6c780;
  --green: #8eb79b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--muted); background: radial-gradient(circle at 72% 8%, rgba(74,109,86,.13), transparent 30%), #070808; font-family: Georgia, "Times New Roman", serif; line-height: 1.55; }
body.lightbox-open { overflow: hidden; }
a { color: inherit; }
button { font: inherit; }
.skip-link { position: fixed; top: -6rem; left: 1rem; z-index: 120; padding: .8rem 1rem; color: #000; background: #fff; }
.skip-link:focus { top: 1rem; }

.evidence-header { width: min(1420px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(3rem, 8vw, 7rem) 0 2.5rem; border-bottom: 1px solid var(--line); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.2rem; color: var(--gold); font: 700 .62rem Arial, sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.breadcrumbs a { text-underline-offset: .25em; }
.evidence-heading { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; }
.eyebrow { margin: 0 0 .75rem; color: var(--gold-bright); font: 700 .68rem Arial, sans-serif; letter-spacing: .2em; text-transform: uppercase; }
h1 { max-width: 12ch; margin: 0; color: var(--paper); font-size: clamp(3rem, 7vw, 6.8rem); font-weight: 400; line-height: .9; letter-spacing: -.05em; }
.evidence-heading > div > p:last-child { max-width: 64ch; margin: 1.3rem 0 0; font-size: 1.08rem; }
.sheet-stat { min-width: 190px; padding: 1.2rem; border: 1px solid var(--line); background: rgba(5,7,6,.72); }
.sheet-stat span, .sheet-stat small { display: block; color: var(--gold); font: 700 .6rem Arial, sans-serif; letter-spacing: .13em; text-transform: uppercase; }
.sheet-stat strong { display: block; margin: .45rem 0; color: var(--paper); font-size: 2rem; font-weight: 400; }

.gallery-shell { width: min(1420px, calc(100% - 2rem)); margin: 0 auto; padding: 2.5rem 0 5rem; }
.photo-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; }
.photo-card { position: relative; min-width: 0; border: 1px solid var(--line); background: linear-gradient(155deg, rgba(255,255,255,.025), rgba(3,4,4,.84)); }
.photo-open { width: 100%; padding: 0; border: 0; color: inherit; background: transparent; text-align: left; cursor: zoom-in; }
.photo-frame { position: relative; display: block; overflow: hidden; aspect-ratio: 4 / 3; background: #020303; }
.photo-frame img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .24s ease, filter .24s ease; }
.photo-open:hover img, .photo-open:focus-visible img { transform: scale(1.018); filter: brightness(1.06); }
.photo-number { position: absolute; top: .7rem; left: .7rem; z-index: 2; padding: .42rem .55rem; border: 1px solid rgba(230,199,128,.65); color: #fff1ca; background: rgba(3,4,4,.88); font: 700 .65rem Arial, sans-serif; letter-spacing: .1em; }
.photo-copy { display: block; padding: 1.15rem; }
.photo-copy strong { display: block; overflow-wrap: anywhere; color: var(--paper); font-size: 1.03rem; font-weight: 400; }
.photo-copy span { display: block; margin-top: .55rem; color: var(--gold); font: 700 .58rem Arial, sans-serif; letter-spacing: .09em; text-transform: uppercase; }
.photo-copy p { min-height: 3.1em; margin: .7rem 0 0; }
.photo-comment { margin: 0 1.15rem 1.15rem; padding: .8rem .9rem; border-left: 2px solid rgba(142,183,155,.48); background: rgba(71,105,82,.08); }
.photo-comment dt { color: var(--green); font: 700 .58rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.photo-comment dd { margin: .3rem 0 0; color: #d0c8bb; font-size: .88rem; }

.sheet-navigation { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.sheet-navigation a { min-height: 76px; display: flex; flex-direction: column; justify-content: center; padding: 1rem 1.2rem; border: 1px solid var(--line); text-decoration: none; }
.sheet-navigation a:nth-child(2) { text-align: center; }
.sheet-navigation a:last-child { text-align: right; }
.sheet-navigation span { color: var(--gold); font: 700 .57rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.sheet-navigation strong { margin-top: .3rem; color: var(--paper); font-weight: 400; }
.sheet-navigation .disabled { visibility: hidden; }

.lightbox[hidden] { display: none; }
.lightbox { position: fixed; inset: 0; z-index: 100; display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 420px); background: rgba(0,0,0,.96); }
.lightbox-media { position: relative; min-width: 0; display: grid; place-items: center; padding: 4.5rem 4.8rem; }
.lightbox-media img { display: block; max-width: 100%; max-height: calc(100vh - 9rem); object-fit: contain; box-shadow: 0 28px 80px rgba(0,0,0,.8); }
.lightbox-meta { overflow-y: auto; padding: 4.5rem 2rem 2rem; border-left: 1px solid var(--line); background: #0a0c0b; }
.lightbox-reference { color: var(--gold-bright); font: 700 .7rem Arial, sans-serif; letter-spacing: .17em; text-transform: uppercase; }
.lightbox-meta h2 { margin: .8rem 0 1.5rem; overflow-wrap: anywhere; color: var(--paper); font-size: 1.65rem; font-weight: 400; line-height: 1.1; }
.lightbox-meta dl { margin: 0; border-top: 1px solid var(--line); }
.lightbox-meta dl div { padding: .9rem 0; border-bottom: 1px solid var(--line); }
.lightbox-meta dt { color: var(--gold); font: 700 .57rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.lightbox-meta dd { margin: .3rem 0 0; color: #d6cec1; }
.lightbox-caption, .lightbox-comment { margin-top: 1.2rem; padding: 1rem; border: 1px solid var(--line); }
.lightbox-caption strong, .lightbox-comment strong { display: block; margin-bottom: .4rem; color: var(--green); font: 700 .58rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.lightbox-original { display: inline-flex; margin-top: 1.2rem; padding: .7rem .9rem; border: 1px solid var(--line); color: var(--gold-bright); text-decoration: none; font: 700 .59rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.lightbox-close, .lightbox-prev, .lightbox-next { position: absolute; z-index: 3; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.28); color: #fff; background: rgba(0,0,0,.72); cursor: pointer; }
.lightbox-close { top: 1rem; right: 1rem; width: 44px; height: 44px; font-size: 1.5rem; }
.lightbox-prev, .lightbox-next { top: 50%; width: 48px; height: 70px; transform: translateY(-50%); font-size: 1.5rem; }
.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }
.lightbox-status { position: absolute; left: 50%; bottom: 1rem; transform: translateX(-50%); color: #d6cec1; font: 700 .59rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.lightbox-return { display: block; margin-top: 1.3rem; color: var(--gold-bright); text-underline-offset: .25em; }

a:focus-visible, button:focus-visible { outline: 3px solid #fff; outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }

@media (max-width: 980px) {
  .photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lightbox { grid-template-columns: 1fr; grid-template-rows: minmax(45vh, 1fr) minmax(0, .8fr); overflow-y: auto; }
  .lightbox-media { min-height: 50vh; padding: 4rem 3.5rem 2rem; }
  .lightbox-media img { max-height: 58vh; }
  .lightbox-meta { overflow: visible; padding: 2rem 1.2rem 4rem; border-top: 1px solid var(--line); border-left: 0; }
}

@media (max-width: 650px) {
  .evidence-heading { grid-template-columns: 1fr; }
  .sheet-stat { width: 100%; }
  .photo-grid { grid-template-columns: 1fr; }
  .photo-copy p { min-height: 0; }
  .sheet-navigation { grid-template-columns: 1fr; }
  .sheet-navigation a, .sheet-navigation a:nth-child(2), .sheet-navigation a:last-child { text-align: left; }
  .sheet-navigation .disabled { display: none; }
  .lightbox-media { min-height: 46vh; padding: 4rem .7rem 1rem; }
  .lightbox-media img { max-height: 48vh; }
  .lightbox-prev, .lightbox-next { top: auto; bottom: .7rem; height: 48px; transform: none; }
  .lightbox-status { bottom: 1.4rem; }
}

/* Curator framework: historical exhibit sequence */
.exhibit-intro { width: min(1420px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(3rem, 8vw, 7rem) 0 2.5rem; border-bottom: 1px solid var(--line); }
.exhibit-intro > p:not(.eyebrow) { max-width: 66ch; font-size: 1.08rem; }
.curator-note { max-width: 900px; margin-top: 2rem; padding: 1.4rem 1.5rem; border: 1px solid var(--line); border-left: 3px solid var(--gold); background: rgba(202,170,103,.045); }
.curator-note p { margin: .55rem 0 0; }
.curator-note .eyebrow { margin: 0; }
.section-index { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 2rem; }
.section-index a { padding: .65rem .8rem; border: 1px solid var(--line); color: var(--gold-bright); text-decoration: none; font: 700 .58rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.featured-register { width: min(1420px, calc(100% - 2rem)); margin: 2rem auto 0; padding: 1.4rem; border: 1px solid var(--line); background: linear-gradient(135deg, rgba(202,170,103,.08), rgba(5,7,6,.84)); }
.featured-register h2 { margin: 0; color: var(--paper); font-size: clamp(1.8rem, 4vw, 3.4rem); font-weight: 400; }
.featured-register ul { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .7rem; margin: 1.2rem 0 0; padding: 0; list-style: none; }
.featured-register li { min-height: 88px; padding: .85rem; border: 1px solid var(--line); }
.featured-register li.assigned { border-color: rgba(230,199,128,.5); background: rgba(202,170,103,.055); }
.featured-register li.pending { border-style: dashed; opacity: .72; }
.featured-register strong, .featured-register span { display: block; }
.featured-register strong { color: var(--paper); font-weight: 400; }
.featured-register span { margin-top: .35rem; color: var(--gold); font: 700 .54rem Arial, sans-serif; letter-spacing: .07em; text-transform: uppercase; }
.historical-sections { width: min(1420px, calc(100% - 2rem)); margin: 0 auto; padding-bottom: 6rem; }
.story-section { padding: clamp(3rem, 7vw, 6rem) 0; border-bottom: 1px solid var(--line); scroll-margin-top: 6rem; }
.story-section > header { display: grid; grid-template-columns: minmax(0, .85fr) minmax(280px, .55fr); gap: 2rem; align-items: end; margin-bottom: 2rem; }
.story-section > header .eyebrow { grid-column: 1 / -1; margin-bottom: -1rem; }
.story-section > header h2 { margin: 0; color: var(--paper); font-size: clamp(2.4rem, 5vw, 5rem); font-weight: 400; line-height: .95; }
.story-section > header p:last-child { margin: 0; }
.exhibit-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; align-items: start; }
.exhibit-card { position: relative; min-width: 0; border: 1px solid var(--line); background: linear-gradient(155deg, rgba(255,255,255,.025), rgba(3,4,4,.9)); scroll-margin-top: 5rem; }
.exhibit-card.featured { grid-column: span 2; border-color: rgba(230,199,128,.62); box-shadow: 0 22px 60px rgba(0,0,0,.28); }
.exhibit-card.principal-climax { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(320px, .8fr); border-color: rgba(240,210,139,.9); box-shadow: 0 30px 90px rgba(0,0,0,.55), 0 0 42px rgba(202,170,103,.08); }
.principal-climax .featured-flag { grid-column: 1 / -1; padding: .8rem 1rem; color: #fff0c2; background: linear-gradient(90deg, rgba(202,170,103,.2), rgba(202,170,103,.035)); letter-spacing: .18em; }
.principal-climax .photo-frame { aspect-ratio: 4 / 3; }
.principal-climax .exhibit-copy { align-self: stretch; padding: clamp(1.3rem, 3vw, 2.2rem); }
.principal-climax .exhibit-copy h3 { font-size: clamp(2rem, 3vw, 3.2rem); }
.featured-flag { display: block; padding: .62rem .85rem; color: #f0d99d; background: rgba(202,170,103,.09); font: 700 .56rem Arial, sans-serif; letter-spacing: .13em; text-transform: uppercase; }
.exhibit-copy { padding: 1.15rem; }
.exhibit-copy h3 { margin: 0 0 1rem; color: var(--paper); font-size: 1.55rem; font-weight: 400; }
.exhibit-copy dl { margin: 0; border-top: 1px solid var(--line); }
.exhibit-copy dl div { padding: .72rem 0; border-bottom: 1px solid var(--line); }
.exhibit-copy dt { color: var(--gold); font: 700 .55rem Arial, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.exhibit-copy dd { margin: .28rem 0 0; color: #d7cfc2; white-space: pre-line; }
.exhibit-copy dd a { color: var(--gold-bright); }
.exhibit-copy > small { display: block; margin-top: .9rem; overflow-wrap: anywhere; color: #8f887d; font: .72rem Arial, sans-serif; }
.exhibit-sequence { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-top: 1rem; }
.exhibit-sequence a { padding: .65rem; border: 1px solid var(--line); color: var(--gold-bright); text-decoration: none; font: 700 .56rem Arial, sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.exhibit-sequence a:last-child { text-align: right; }
.exhibit-sequence a.disabled { visibility: hidden; }
.unassigned-note { grid-column: 1 / -1; margin: 0; padding: 1.4rem; border: 1px dashed var(--line); color: #9c9589; }
.lightbox-caption span { white-space: pre-line; }

@media (max-width: 980px) {
  .featured-register ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .exhibit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 650px) {
  .featured-register ul, .exhibit-grid { grid-template-columns: 1fr; }
  .story-section > header { grid-template-columns: 1fr; }
  .story-section > header .eyebrow { margin-bottom: 0; }
  .exhibit-card.featured { grid-column: span 1; }
  .exhibit-card.principal-climax { display: block; grid-column: span 1; }
  .principal-climax .featured-flag { display: block; }
}