/* Regional imagery stays separate from the 3D collection and its reading surface. */
.region-page { --era-nav-height: 62px; --scene-mobile-height: 190px; }
.region-introduction { padding: 38px 0 44px; }
.region-title-row { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.region-title-row h1 { font-size: clamp(64px,7vw,102px); font-weight: 500; line-height: 1.1; letter-spacing: -.06em; margin-top: 18px; }
.region-title-row h1 span { font: 400 13px Arial,sans-serif; letter-spacing: .25em; margin-left: 24px; vertical-align: middle; }
.region-location { font-size: 11px; color: var(--muted); line-height: 2; text-align: right; }
.region-panorama { margin: 0; }
.region-panorama img { width: 100%; height: auto; display: block; background: #e5e5d9; }
.region-panorama figcaption { font-size: 10px; line-height: 1.8; color: var(--muted); text-align: right; padding-top: 12px; }
.region-panorama figcaption a { text-decoration: underline; text-underline-offset: 3px; }
.region-overview { display: grid; grid-template-columns: 31% 1fr; gap: 6%; padding-top: 40px; }
.region-overview h2 { font-size: 24px; font-weight: 500; line-height: 1.7; margin-top: 12px; }
.region-overview-copy { font-size: 13px; line-height: 2.2; color: #535953; max-width: 64em; }
.region-overview-copy p+p { margin-top: 12px; }
.region-overview-links { display: flex; flex-wrap: wrap; gap: 16px 30px; margin-top: 23px; }
.region-overview-links .text-link { font-size: 12px; }
.region-page .region-collection { padding: 25px 0 40px; border-top: 1px solid var(--line); }
.collection-strip-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; }
.collection-strip-heading h2 { font-size: 15px; font-weight: 500; }
.collection-strip-heading p { font-size: 9px; color: var(--muted); letter-spacing: .1em; }
.region-page .region-collection-grid { grid-template-columns: repeat(7,minmax(0,1fr)); gap: 16px; margin: 22px 0 0; }
.region-page .region-collection-grid a>span:last-child { font-size: 10px; line-height: 1.65; gap: 5px; }
.region-page .collection-image { aspect-ratio: 1.3; }
.region-page .timeline-intro { scroll-margin-top: 25px; }
.region-page .era-index { z-index: 8; gap: 0; }
.region-page .era-index::after { content: ''; position: absolute; bottom: -1px; left: 0; width: 100%; height: 2px; background: var(--accent); transform: scaleX(var(--timeline-progress,0)); transform-origin: left; }
.region-page .era-index a { min-height: 60px; padding: 17px 12px; transition: background .2s, color .2s; }
.timeline-experience { position: relative; isolation: isolate; margin-inline: -5.555556%; background: #f5f4ef; }
.timeline-experience.is-enhanced { display: grid; grid-template-columns: minmax(0,1fr); }
.timeline-landscape { grid-area: 1/1; position: sticky; top: var(--era-nav-height); align-self: start; height: calc(100svh - var(--era-nav-height)); max-height: 1000px; min-height: 440px; overflow: hidden; pointer-events: none; }
.timeline-landscape[hidden] { display: none; }
.timeline-scene { position: absolute; inset: 0; margin: 0; opacity: 0; visibility: hidden; transition: opacity .65s ease, visibility 0s .65s; }
.timeline-scene.is-active { opacity: 1; visibility: visible; transition-delay: 0s; }
.scene-picture { position: absolute; inset: 0 55% 0 0; overflow: hidden; background: #4c5d50; }
.scene-picture img { width: 100%; height: 100%; object-fit: cover; object-position: var(--scene-position,center); transform: scale(1.045); transition: transform 1.5s ease-out; }
.is-active .scene-picture img { transform: scale(1); }
.scene-picture::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg,transparent 58%,#f5f4ef 100%),linear-gradient(0deg,#15221ede,transparent 65%); }
.timeline-scene figcaption { position: absolute; bottom: 54px; left: 5%; width: 30%; color: white; text-shadow: 0 1px 8px #0004; }
.scene-chapter { font-size: 10px; letter-spacing: .14em; margin-bottom: 18px; }
.scene-title { font-size: clamp(27px,2.7vw,42px); font-weight: 400; line-height: 1.5; letter-spacing: -.025em; }
.scene-caption { font-size: 11px; line-height: 1.9; margin-top: 20px; }
.scene-source { display: inline-block; pointer-events: auto; padding-block: 12px; margin-top: 4px; font-size: 10px; text-decoration: underline; text-underline-offset: 4px; }
.timeline-chapters { grid-area: 1/1; position: relative; min-width: 0; pointer-events: none; }
.region-page .timeline-era { display: block; padding: 50px 5% 60px; border: 0; scroll-margin-top: calc(var(--era-nav-height) + 22px); }
.is-enhanced .timeline-era { margin-left: 45%; padding: 50px 9.1% 60px 0; min-height: calc(100svh - var(--era-nav-height)); }
.timeline-era>* { pointer-events: auto; }
.region-page .era-label { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 0 15px; margin-bottom: 26px; }
.region-page .era-label .era-number { grid-column: 1; grid-row: 1; font-size: 11px; }
.region-page .era-label h2 { grid-column: 2; grid-row: 1; font-size: 35px; margin: 0; }
.region-page .era-label .era-period { grid-column: 1/-1; margin-top: 10px; }
.region-page .era-label .era-period br { display: none; }
.region-page .era-label .era-summary { grid-column: 1/-1; margin-top: 17px; font-size: 13px; }
.region-page .era-records { margin-top: 0; }
.region-page .record-card { background: white; border: 1px solid #e6e7e1; scroll-margin-top: calc(var(--era-nav-height) + 20px); }
.region-page .record-card+.record-card { margin-top: 26px; }
.region-page .record-image .scan-poster { height: clamp(260px,28vw,420px); background: #eeefeb; }
.region-page .record-caption { padding: 21px 24px; gap: 15px; }
.region-page .record-caption h3 { font-size: 23px; }
.region-page .catalog-note { font-size: 11px; line-height: 1.95; color: #626860; margin-top: 20px; }
.region-page .history-detail { border-color: #cbd0c7; }
.region-page .history-detail>summary { font-size: 12px; cursor: pointer; }
.region-page .era-text-only>.era-summary { font-size: 14px; line-height: 2.2; }
.region-page .era-copy,.region-page .era-events { background: #f5f4ef; }
.era-photo { margin: 20px 0; }
.era-photo img { display: block; max-height: 350px; width: 100%; object-fit: cover; }
.era-photo figcaption { font-size: 11px; line-height: 1.9; padding-top: 10px; }
.landscape-credits { margin: 28px 0 0; border-block: 1px solid var(--line); font-size: 11px; color: #5d645d; line-height: 1.9; scroll-margin-top: calc(var(--era-nav-height) + 24px); }
.landscape-credits>summary { cursor: pointer; padding: 20px 0; font-size: 12px; }
.landscape-credits>p { margin: 0 0 22px; max-width: 75em; }
.landscape-credits ul { list-style: none; padding: 0; }
.landscape-credits li { padding: 15px 0; border-top: 1px solid #e4e6e2; }
.landscape-credits a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width:1000px) {
  .region-page .region-collection-grid { grid-template-columns: repeat(7,140px); overflow-x: auto; padding-bottom: 16px; scrollbar-width: thin; scroll-snap-type: x proximity; }
  .region-page .region-collection-grid a { scroll-snap-align: start; }
  .is-enhanced .timeline-era { margin-left: 41%; padding-right: 8.4%; }
  .scene-picture { right: 59%; }
  .timeline-scene figcaption { width: 29%; }
  .region-page .record-caption h3 { font-size: 20px; }
}
@media (max-width:760px) {
  .region-page { --era-nav-height: 66px; }
  .region-introduction { padding: 27px 0 30px; }
  .region-title-row { margin-bottom: 22px; gap: 12px; }
  .region-title-row h1 { font-size: 64px; margin-top: 14px; }
  .region-title-row h1 span { font-size: 10px; margin-left: 13px; letter-spacing: .14em; }
  .region-location { font-size: 9px; white-space: nowrap; }
  .region-panorama { margin-inline: -5.555556%; }
  .region-panorama img { min-height: 138px; object-fit: cover; }
  .region-panorama figcaption { font-size: 9px; padding: 10px 5% 0; }
  .region-overview { display: block; padding-top: 26px; }
  .region-overview h2 { font-size: 23px; line-height: 1.6; margin: 9px 0 15px; }
  .region-overview-copy { font-size: 12px; line-height: 2.05; }
  .region-overview-links { margin-top: 20px; gap: 14px 23px; }
  .region-overview-links .text-link { font-size: 11px; }
  .region-page .region-collection { padding-block: 23px; }
  .region-page .region-collection-grid { grid-template-columns: repeat(7,128px); gap: 13px; margin-top: 17px; }
  .collection-strip-heading h2 { font-size: 14px; }
  .collection-strip-heading p { font-size: 8px; }
  .region-page .era-index a { padding: 12px 4px; min-height: 64px; font-size: 11px; gap: 6px; }
  .region-page .timeline-intro .section-title h2 { font-size: 24px; }
  .timeline-experience.is-enhanced { --scene-anchor-offset: calc(var(--era-nav-height) + var(--scene-mobile-height) + 18px); }
  .timeline-landscape { height: var(--scene-mobile-height); min-height: 0; z-index: 4; box-shadow: 0 6px 18px #232c2112; }
  .scene-picture { inset: 0; }
  .scene-picture img { object-position: var(--scene-mobile-position,center); }
  .scene-picture::after { background: linear-gradient(90deg,#12261bbb,#12261b0a),linear-gradient(0deg,#15221e7a,transparent 90%); }
  .timeline-scene figcaption { left: 5%; bottom: 13px; width: 85%; }
  .scene-chapter { font-size: 8px; margin-bottom: 5px; }
  .scene-title { font-size: 23px; line-height: 1.4; }
  .scene-caption { font-size: 9px; line-height: 1.6; margin-top: 9px; }
  .scene-source { font-size: 9px; padding: 6px 0; margin-top: 2px; }
  .is-enhanced .timeline-chapters { padding-top: var(--scene-mobile-height); }
  .region-page .timeline-era,.is-enhanced .timeline-era { margin-left: 0; min-height: auto; padding: 30px 5% 45px; scroll-margin-top: var(--scene-anchor-offset,calc(var(--era-nav-height) + 18px)); }
  .region-page .timeline-era+.timeline-era { border-top: 1px solid #d4d8cf; }
  .region-page .era-label { margin-bottom: 20px; }
  .region-page .era-label h2 { font-size: 30px; }
  .region-page .era-label .era-summary { font-size: 12px; line-height: 2; margin-top: 13px; }
  .region-page .record-card { scroll-margin-top: var(--scene-anchor-offset,90px); }
  .region-page .record-image .scan-poster { height: 245px; }
  .region-page .record-caption { padding: 17px; }
  .region-page .record-caption h3 { font-size: 20px; }
  .region-page .record-caption .record-open { min-width: 65px; font-size: 9px; }
  .region-page .record-caption p { font-size: 9px; }
  .landscape-credits { font-size: 10px; }
}
@media (max-height:560px) and (max-width:760px) {
  .region-page { --scene-mobile-height: 112px; }
  .scene-chapter,.scene-source { display: none; }
  .scene-caption { margin-top: 5px; }
  .scene-title { font-size: 19px; }
}
@media (prefers-reduced-motion:reduce) {
  .timeline-scene,.scene-picture img,.region-page .era-index a { transition: none; }
  .scene-picture img { transform: none; }
}