.museum-hero { max-width: 820px; }
.museum-hero > p { max-width: 64ch; }
.problem-hero .chip { display: inline-block; margin-bottom: 6px; font-size: 16px; }
.problem-question { font-style: italic; font-size: 21px; line-height: 1.5; color: var(--ink) !important; }
.problem-status { font-size: 16px; color: var(--muted) !important; }

.mode-toggle, .level-toggle, .filter-chips { display: flex; flex-wrap: wrap; gap: 0 20px; margin-bottom: 20px; border-bottom: 1px solid var(--rule); }
.mode-toggle { margin-top: 18px; margin-bottom: 0; }
.mode-toggle button, .level-toggle button, .filter-chips button { min-height: 44px; padding: 8px 0; margin-bottom: -1px; border: 0; border-bottom: 2px solid transparent; background: none; font-size: 15.5px; color: var(--muted); }
.mode-toggle button:hover, .level-toggle button:hover, .filter-chips button:hover { color: var(--ink); }
.mode-toggle button[aria-pressed="true"], .level-toggle button[aria-pressed="true"], .filter-chips button[aria-pressed="true"] { color: var(--ink); border-bottom-color: var(--ink); font-weight: 600; }

.exhibit-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: 30px 32px; }
.exhibit-card { display: flex; flex-direction: column; gap: 6px; min-width: 0; color: var(--ink); }
.exhibit-card:hover { text-decoration: none; }
.exhibit-card:hover h3 { color: var(--accent); }
.exhibit-plate { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 760; margin-bottom: 8px; background: var(--board); border-radius: var(--radius); }
.exhibit-card .chip { font-size: 15px; }
.exhibit-card h3 { margin: 0; font-size: 21px; line-height: 1.3; }
.exhibit-card p { margin: 0; font-size: 15.5px; color: var(--ink-soft); }
.exhibit-card .exhibit-latest { margin-top: 6px; padding-top: 8px; border-top: 1px solid var(--rule); font-size: 14.5px; color: var(--muted); }
.museum-rules { margin-top: 26px; }

.exhibit-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 36px; }
.exhibit-panel { padding: 12px 0 22px; border-top: 1px solid var(--ink); min-width: 0; }
.exhibit-panel.wide { grid-column: 1 / -1; }
.exhibit-panel h3 { font-size: 20px; margin-bottom: 10px; }
.exhibit-panel ul { margin: 0; padding-left: 18px; }
.exhibit-panel li { margin-bottom: 8px; font-size: 16px; color: var(--ink-soft); overflow-wrap: anywhere; }
.exhibit-panel p { font-size: 16px; color: var(--ink-soft); overflow-wrap: anywhere; }
.claim-list { list-style: none; padding: 0 !important; }
.claim-list li { padding: 10px 0; border-bottom: 1px solid var(--rule); }
.claim-date, .grade-line { font-size: 15px; color: var(--muted); }
.level-text p { font-size: 18.5px; line-height: 1.7; color: var(--ink); max-width: 66ch; }
.level-text + .level-text { margin-top: 18px; }
.level-name { margin-bottom: 4px; font-size: 16px !important; font-weight: 600; font-variant-caps: all-small-caps; letter-spacing: .04em; color: var(--muted) !important; }
.js-museum .level-name { display: none; }

.timeline { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.era { margin: 22px 0 0; padding-bottom: 6px; border-bottom: 1px solid var(--rule); }
.era:first-child { margin-top: 10px; }
.era span { font-size: 17px; font-weight: 600; font-variant-caps: all-small-caps; letter-spacing: .04em; color: var(--muted); }
.event { display: grid; grid-template-columns: 8em minmax(0, 1fr); gap: 4px 20px; padding: 12px 0 14px; border-bottom: 1px solid var(--rule); }
.event-date { padding-top: 2px; color: var(--muted); font-size: 15px; font-variant-numeric: tabular-nums; }
.event-card { max-width: 720px; min-width: 0; }
.event-card h3 { margin: 0 0 4px; font-size: 18px; }
.event-card p { margin: 0 0 6px; font-size: 16px; color: var(--ink-soft); overflow-wrap: anywhere; }
.event-card .event-meta { display: flex; flex-wrap: wrap; gap: 2px 12px; align-items: baseline; margin-bottom: 2px; font-size: 15px; }
.event-kind { font-size: 16px; font-variant-caps: all-small-caps; letter-spacing: .04em; color: var(--muted); }
.kind-ai .event-kind { color: var(--ink); font-weight: 700; }
.event-card .event-links { margin: 0; font-size: 15px; }
.museum-neighbours { display: flex; flex-wrap: wrap; gap: 0 18px; margin-top: 40px; padding-top: 14px; border-top: 1px solid var(--rule); }
.museum-neighbours a { display: inline-flex; align-items: center; min-height: 44px; font-size: 17px; }

.plate { margin: 18px 0 26px; }
.plate .plate-art { display: block; width: 100%; height: auto; border-radius: var(--radius); }
.plate figcaption { padding-top: 10px; max-width: 72ch; color: var(--muted); font-size: 15.5px; line-height: 1.6; }
.plate figcaption strong { color: var(--ink); font-weight: 600; }
.plate-number { display: block; margin-bottom: 2px; font-size: 16px; font-weight: 600; font-variant-caps: all-small-caps; letter-spacing: .04em; color: var(--muted); }
@keyframes plate-draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes plate-appear { from { opacity: 0; } to { opacity: 1; } }
.js-museum .plate.drawing path { stroke-dasharray: 1; stroke-dashoffset: 1; }
.js-museum .plate.drawing circle, .js-museum .plate.drawing text, .js-museum .plate.drawing .plate-fill { opacity: 0; }
.js-museum .plate.drawing.drawn path { stroke-dashoffset: 0; animation: plate-draw var(--draw, 3s) cubic-bezier(.45, .05, .3, 1) calc(var(--layer, 0) * .8s) both; }
.js-museum .plate.drawing.drawn circle, .js-museum .plate.drawing.drawn text, .js-museum .plate.drawing.drawn .plate-fill { opacity: 1; animation: plate-appear .9s ease calc(var(--layer, 0) * .8s + .6s) both; }

@media (max-width: 760px) {
  .problem-question { font-size: 18.5px; }
  .exhibit-layout { grid-template-columns: minmax(0, 1fr); }
  .event { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .level-text p { font-size: 17px; }
  .mode-toggle, .level-toggle, .filter-chips { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); }
  .mode-toggle::-webkit-scrollbar, .level-toggle::-webkit-scrollbar, .filter-chips::-webkit-scrollbar { display: none; }
  .mode-toggle button, .level-toggle button, .filter-chips button { flex: none; }
}