:root {
  --ink: #1b1a17;
  --muted: #6c675e;
  --paper: #f4efe5;
  --paper-2: #ebe3d4;
  --white: #fffdf8;
  --navy: #17212f;
  --navy-2: #0f1722;
  --gold: #b98a38;
  --gold-soft: #d8bd78;
  --red: #7d302d;
  --border: rgba(27,26,23,.16);
  --shadow: 0 18px 60px rgba(30,25,18,.12);
  --serif: "Libre Baskerville", Georgia, serif;
  --sans: Inter, 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); font-family: var(--sans); line-height: 1.6; }
a { color: inherit; }
img { max-width: 100%; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -80px; background: #fff; color: #000; padding: 12px 16px; z-index: 100; }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid transparent; transition: .2s ease; background: rgba(244,239,229,.92); backdrop-filter: blur(14px); }
.site-header[data-elevated="true"] { border-bottom-color: var(--border); box-shadow: 0 8px 30px rgba(20,18,15,.06); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { width: 42px; height: 42px; border: 1px solid var(--ink); border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); font-weight: 700; font-size: 13px; letter-spacing: .08em; }
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-family: var(--serif); font-size: 15px; }
.brand-copy span { color: var(--muted); font-size: 11px; margin-top: 4px; text-transform: uppercase; letter-spacing: .14em; }
.primary-nav { display: flex; align-items: center; gap: 26px; }
.primary-nav a { text-decoration: none; font-size: 14px; font-weight: 600; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--red); }
.nav-cta { border: 1px solid var(--ink); padding: 9px 14px; border-radius: 999px; }
.menu-toggle { display: none; border: 0; background: none; padding: 8px; }
.menu-toggle span:not(.sr-only) { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

.hero { padding: 90px 0 70px; border-bottom: 1px solid var(--border); }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(48px, 8vw, 110px); align-items: center; }
.eyebrow { margin: 0 0 12px; text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 700; color: var(--red); }
.hero h1, .section h2 { font-family: var(--serif); letter-spacing: -.03em; line-height: 1.05; }
.hero h1 { max-width: 800px; font-size: clamp(52px, 8vw, 100px); margin: 0 0 24px; font-weight: 400; }
.hero-deck { max-width: 750px; font-size: clamp(18px, 2vw, 23px); color: #4b4740; margin: 0 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 18px; border-radius: 4px; text-decoration: none; font-weight: 700; font-size: 14px; }
.button-primary { background: var(--ink); color: var(--white); }
.button-secondary { border: 1px solid var(--ink); }
.button-light { background: var(--white); color: var(--navy-2); margin-top: 18px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 26px; color: var(--muted); font-size: 13px; }
.hero-meta span::before { content: "•"; color: var(--gold); margin-right: 8px; }
.hero-feature { background: var(--navy); color: var(--white); box-shadow: var(--shadow); }
.artifact-label { padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.15); font-size: 11px; text-transform: uppercase; letter-spacing: .14em; }
.artifact-window { min-height: 420px; padding: 48px; display: flex; flex-direction: column; justify-content: space-between; background: radial-gradient(circle at 80% 10%, rgba(185,138,56,.22), transparent 34%); }
.gold-disc { width: 94px; height: 94px; border-radius: 50%; border: 1px solid rgba(255,255,255,.45); background: radial-gradient(circle at 35% 30%, #e9d08f, var(--gold) 70%); box-shadow: inset 0 0 0 10px rgba(255,255,255,.06); }
.kicker { color: var(--gold-soft); font-size: 12px; letter-spacing: .14em; }
.artifact-window h2 { font-family: var(--serif); font-size: clamp(30px, 4vw, 48px); margin: 0 0 16px; line-height: 1.08; }
.artifact-window p { color: rgba(255,255,255,.76); }
.artifact-window a { font-weight: 700; text-decoration: none; }

.mission-strip { background: var(--white); border-bottom: 1px solid var(--border); padding: 34px 0; }
.mission-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: center; }
.mission-quote { font-family: var(--serif); font-size: 20px; margin: 0; }
.mission-copy { margin: 0; color: var(--muted); }

.section { padding: 90px 0; }
.section-heading { display: grid; grid-template-columns: 1fr .9fr; gap: 60px; align-items: end; margin-bottom: 36px; }
.section h2 { font-size: clamp(38px, 5vw, 64px); margin: 0; font-weight: 400; }
.section-heading > p { color: var(--muted); margin: 0; font-size: 17px; }
.period-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.period-card { min-height: 190px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); text-decoration: none; transition: transform .2s ease, background .2s ease; }
.period-card:hover, .period-card:focus-visible { background: var(--white); transform: translateY(-2px); }
.period-card span { font-size: 11px; text-transform: uppercase; letter-spacing: .14em; color: var(--red); font-weight: 700; }
.period-card strong { font-family: var(--serif); font-size: 28px; margin-top: auto; }
.period-card em { font-style: normal; color: var(--muted); font-size: 14px; margin-top: 7px; }
.period-card.featured { background: var(--paper-2); }

.section-dark { background: var(--navy); color: var(--white); }
.section-dark .eyebrow { color: var(--gold-soft); }
.practice-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.practice-intro p:not(.eyebrow) { color: rgba(255,255,255,.72); max-width: 520px; font-size: 17px; }
.skill-list { border-top: 1px solid rgba(255,255,255,.18); }
.skill-list a { display: grid; grid-template-columns: 50px 1fr auto; gap: 20px; align-items: center; padding: 22px 4px; border-bottom: 1px solid rgba(255,255,255,.18); text-decoration: none; }
.skill-list > a > span { font-family: var(--serif); color: var(--gold-soft); }
.skill-list strong { display: block; font-size: 18px; }
.skill-list small { color: rgba(255,255,255,.6); }
.skill-list b { font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--gold-soft); }

.review-grid, .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.large-copy { font-size: 20px; color: var(--muted); max-width: 560px; }
.review-panel { border-top: 1px solid var(--border); }
.review-row { display: flex; justify-content: space-between; gap: 30px; padding: 19px 0; border-bottom: 1px solid var(--border); }
.review-row span { color: var(--muted); }
.review-row strong { text-align: right; }
.section-paper { background: var(--white); border-top: 1px solid var(--border); }
.about-grid p { font-size: 18px; margin-top: 0; }
.site-footer { background: var(--navy-2); color: var(--white); padding: 34px 0; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; align-items: center; }
.footer-grid div { display: grid; }
.footer-grid span, .footer-grid p { color: rgba(255,255,255,.6); font-size: 13px; }

@media (max-width: 900px) {
  .hero-grid, .mission-grid, .section-heading, .practice-grid, .review-grid, .about-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 60px; }
  .period-grid { grid-template-columns: repeat(2, 1fr); }
  .primary-nav { position: absolute; inset: 76px 0 auto 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px 20px; background: var(--paper); border-bottom: 1px solid var(--border); }
  .primary-nav[data-open="true"] { display: flex; }
  .primary-nav a { padding: 13px 0; }
  .nav-cta { border: 0; border-radius: 0; }
  .menu-toggle { display: block; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 24px, 1180px); }
  .hero h1 { font-size: 48px; }
  .artifact-window { min-height: 360px; padding: 28px; }
  .period-grid { grid-template-columns: 1fr; }
  .skill-list a { grid-template-columns: 34px 1fr; }
  .skill-list b { grid-column: 2; }
  .review-row, .footer-grid { flex-direction: column; align-items: flex-start; }
  .review-row strong { text-align: left; }
  .brand-copy strong { font-size: 13px; }
}

/* Phase 3B · Museum lobby and gallery architecture */
.primary-nav a[aria-current="page"] { color: var(--red); }
.explore-more { margin: 28px 0 0; }
.museum-hero { padding: 96px 0 72px; background: var(--navy); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.12); }
.museum-hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(50px,8vw,110px); align-items: end; }
.museum-hero .eyebrow { color: var(--gold-soft); }
.museum-hero h1 { font-family: var(--serif); font-size: clamp(54px,8vw,100px); font-weight: 400; line-height: 1.02; letter-spacing: -.04em; margin: 0 0 26px; }
.museum-deck { max-width: 760px; color: rgba(255,255,255,.72); font-size: clamp(18px,2vw,22px); margin: 0; }
.museum-key { border-top: 1px solid rgba(255,255,255,.28); padding-top: 20px; }
.museum-key > div { display: grid; gap: 2px; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.museum-key strong { font-family: var(--serif); font-size: 18px; }
.museum-key span { color: rgba(255,255,255,.58); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.gallery-list { border-top: 1px solid var(--border); }
.gallery-entry { display: grid; grid-template-columns: 58px 150px minmax(0,1fr) auto; gap: 28px; align-items: center; min-height: 132px; padding: 24px 8px; border-bottom: 1px solid var(--border); text-decoration: none; transition: background .18s ease, padding .18s ease; }
.gallery-entry:hover, .gallery-entry:focus-visible { background: var(--white); padding-left: 18px; padding-right: 18px; }
.gallery-number { font-family: var(--serif); color: var(--gold); font-size: 20px; }
.gallery-dates { font-family: var(--serif); font-size: 18px; }
.gallery-entry strong { display: block; font-family: var(--serif); font-size: clamp(22px,2.5vw,32px); line-height: 1.15; }
.gallery-entry em { display: block; color: var(--muted); font-style: normal; margin-top: 5px; }
.gallery-entry small { display: inline-block; margin-top: 9px; color: var(--red); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.gallery-entry b { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
.gallery-entry-live { background: var(--paper-2); }
.featured-collection { background: var(--white); border-top: 1px solid var(--border); }
.featured-exhibit-card { display: grid; grid-template-columns: 180px 1fr; gap: 42px; align-items: center; padding: clamp(28px,5vw,56px); background: var(--navy); color: var(--white); text-decoration: none; box-shadow: var(--shadow); }
.featured-medallion { width: 150px; height: 150px; border: 1px solid rgba(255,255,255,.38); border-radius: 50%; display: grid; place-content: center; text-align: center; font-family: var(--serif); color: var(--gold-soft); line-height: 1.1; font-size: 20px; }
.featured-medallion span { color: rgba(255,255,255,.5); }
.artifact-label-inline { color: var(--gold-soft); text-transform: uppercase; letter-spacing: .13em; font-size: 11px; font-weight: 700; }
.featured-exhibit-card h3 { font-family: var(--serif); font-size: clamp(30px,4vw,50px); line-height: 1.08; margin: 8px 0 14px; }
.featured-exhibit-card p:not(.artifact-label-inline) { color: rgba(255,255,255,.7); max-width: 780px; }
.featured-exhibit-card strong { display: inline-block; margin-top: 10px; }
.gallery-hero { padding: 70px 0 76px; background: var(--navy); color: var(--white); }
.back-link { display: inline-block; color: rgba(255,255,255,.68); text-decoration: none; font-size: 13px; margin-bottom: 48px; }
.gallery-hero-grid { display: grid; grid-template-columns: 1fr .8fr; gap: 80px; align-items: end; }
.gallery-hero .eyebrow { color: var(--gold-soft); }
.gallery-period-dates { font-family: var(--serif); color: var(--gold-soft); font-size: 22px; margin: 0 0 8px; }
.gallery-hero h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(48px,7vw,88px); line-height: 1.02; letter-spacing: -.04em; margin: 0; }
.gallery-question { border-left: 1px solid rgba(255,255,255,.25); padding-left: 30px; }
.gallery-question > span { display: block; color: var(--gold-soft); text-transform: uppercase; letter-spacing: .13em; font-size: 11px; font-weight: 700; margin-bottom: 10px; }
.gallery-question strong { display: block; font-family: var(--serif); font-size: clamp(22px,3vw,32px); line-height: 1.3; }
.gallery-question p { color: rgba(255,255,255,.65); margin-bottom: 0; }
.gallery-orientation { background: var(--white); border-bottom: 1px solid var(--border); padding: 38px 0; }
.orientation-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
.orientation-grid h2 { font-family: var(--serif); font-size: 28px; margin: 0; }
.orientation-grid > p { color: var(--muted); margin: 0; }
.collection-section { padding: 76px 0 90px; }
.collection-heading { margin-bottom: 30px; }
.collection-heading h2 { font-family: var(--serif); font-size: clamp(34px,5vw,54px); font-weight: 400; margin: 0; }
.exhibit-list-card { display: grid; grid-template-columns: 150px minmax(0,1fr) auto; gap: 30px; align-items: center; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 30px 0; }
.exhibit-type { color: var(--red); text-transform: uppercase; letter-spacing: .11em; font-size: 11px; font-weight: 700; }
.exhibit-list-card h3 { font-family: var(--serif); font-size: 28px; margin: 0 0 7px; }
.exhibit-list-card p { color: var(--muted); margin: 0; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag-row span { border: 1px solid var(--border); border-radius: 999px; padding: 5px 9px; font-size: 11px; color: var(--muted); }
.collection-note, .empty-collection { margin-top: 30px; background: var(--paper-2); padding: 24px 28px; }
.collection-note p { color: var(--muted); margin-bottom: 0; }
.empty-collection { display: grid; grid-template-columns: 56px 1fr; gap: 20px; align-items: center; }
.empty-collection > span { width: 48px; height: 48px; border: 1px solid var(--border); border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); font-size: 24px; color: var(--gold); }
.empty-collection p { color: var(--muted); margin: 4px 0 0; }
.gallery-next { border-top: 1px solid var(--border); background: var(--white); }
.gallery-next .shell { display: flex; justify-content: space-between; padding-top: 25px; padding-bottom: 25px; }
.gallery-next a { font-weight: 700; text-decoration: none; }
@media (max-width: 900px) {
  .museum-hero-grid, .gallery-hero-grid, .orientation-grid { grid-template-columns: 1fr; gap: 38px; }
  .gallery-entry { grid-template-columns: 45px 120px 1fr; }
  .gallery-entry b { grid-column: 3; }
  .gallery-question { border-left: 0; border-top: 1px solid rgba(255,255,255,.25); padding: 26px 0 0; }
  .exhibit-list-card { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .museum-hero { padding-top: 64px; }
  .gallery-entry { grid-template-columns: 38px 1fr; gap: 12px 16px; padding: 20px 4px; }
  .gallery-dates { grid-column: 2; font-size: 16px; }
  .gallery-entry > div:nth-of-type(2) { grid-column: 2; }
  .gallery-entry b { grid-column: 2; }
  .featured-exhibit-card { grid-template-columns: 1fr; }
  .featured-medallion { width: 105px; height: 105px; }
  .back-link { margin-bottom: 30px; }
}
/* Exhibit collection card — added with Period 2 flagship */
.featured-exhibit-card{display:grid;grid-template-columns:1.25fr .75fr;border:1px solid rgba(26,28,26,.16);background:#fffaf0;overflow:hidden;margin-bottom:34px}.featured-exhibit-copy{padding:clamp(28px,4vw,50px)}.featured-exhibit-copy h3{font:400 clamp(30px,4vw,48px)/1.1 var(--serif);letter-spacing:-.03em;margin:14px 0}.featured-exhibit-copy p{max-width:720px;color:#5f5a52;line-height:1.7}.exhibit-type-badge{display:inline-block;font-size:10px;text-transform:uppercase;letter-spacing:.13em;font-weight:700;color:#762d2b}.exhibit-tags{display:flex;flex-wrap:wrap;gap:7px;margin:20px 0}.exhibit-tags span{padding:6px 9px;background:#eee5d3;font-size:10px;font-weight:700}.featured-exhibit-art{min-height:360px;background:#17271f;color:#f2eadb;padding:28px;display:flex;flex-direction:column;justify-content:space-between}.featured-exhibit-art>span{font-size:10px;letter-spacing:.18em}.featured-exhibit-art>div{font:700 11px var(--sans);letter-spacing:.2em;color:#d1ab65}.featured-exhibit-art>strong{font:400 clamp(34px,5vw,62px)/.94 var(--serif);letter-spacing:-.05em}@media(max-width:800px){.featured-exhibit-card{grid-template-columns:1fr}.featured-exhibit-art{min-height:260px}}