/* SONELIORA 10.10.1: three selectable visual models, accessible regularized navigation */
:root{--ui-accent:#d7ad6a;--ui-line:#8b704b;--ui-navy:#071b30}
body.exp10100{background:#03101f}
.museum-layout{max-width:1680px;display:grid;grid-template-columns:268px minmax(0,1fr);gap:25px;padding:0 22px}
.museum-page{min-width:0}.top{padding-inline:clamp(18px,3vw,55px)}.top .brand{min-width:220px}
.museum-global-side{align-self:start;position:sticky;top:93px;max-height:calc(100dvh - 110px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#49617a transparent;border:1px solid #9a794359;border-radius:15px;background:linear-gradient(180deg,#041426f2,#05121fed);padding:16px 13px 18px;box-shadow:0 15px 55px #0006}
.rail-brand{display:flex;align-items:center;gap:11px;border-bottom:1px solid #c39b6140;padding:4px 7px 16px;margin-bottom:14px;color:#fae3ab}.rail-brand>span{font-size:30px}.rail-brand strong{display:block;font:600 17px Georgia,serif;letter-spacing:.13em}.rail-brand small{font-size:8px;display:block;letter-spacing:.2em;color:#aaabc0}
.rail-group{border-bottom:1px solid #cca5673e;padding:0 0 13px;margin:0 0 14px}.rail-group h2{font:800 10px/1.5 system-ui,sans-serif;letter-spacing:.16em;color:#a9dbed;margin:0 0 9px;padding:0 5px}.rail-group nav{display:grid;gap:5px}.rail-group nav a{display:flex;align-items:center;gap:10px;min-height:49px;padding:7px 9px;border:1px solid #4860779e;background:linear-gradient(135deg,#0a273a,#08192e);border-radius:11px;color:#f6eddb;text-decoration:none;font:650 12px/1.35 system-ui,sans-serif}.rail-group nav a:hover,.rail-author:hover{border-color:#eac281;background:#102f49}.rail-group nav a.current{border-color:#f1c778;background:linear-gradient(110deg,#554022aa,#102538);box-shadow:inset 3px 0 #d9b875,0 0 14px #ad783439}.rail-group nav a>span:nth-child(2){min-width:0;flex:1}.rail-group nav small{display:block;color:#b9c1cd;font:400 10px/1.4 system-ui,sans-serif;margin-top:1px}.rail-ico{font-size:18px;color:#eac582;min-width:25px;text-align:center}.rail-arrow{margin-left:auto;font-size:19px;color:#e7c488}.rail-group p{font-size:11px;line-height:1.55;color:#c6d0dd;margin:0 5px 12px}.rail-gold{display:block;text-align:center;padding:9px 8px!important;border:1px solid #ffe6a6;border-radius:10px!important;color:#092036!important;font-weight:800;font-size:12px;text-decoration:none;background:linear-gradient(180deg,#ffe6aa,#d2a250)}.rail-author{display:flex;align-items:center;gap:9px;text-decoration:none;color:#f5daa3;border:1px solid #987443;border-radius:12px;padding:7px;background:#081b2c}.rail-author img{width:51px;height:55px;object-fit:cover;border-radius:8px;flex:none}.rail-author span:nth-child(2){min-width:0;flex:1}.rail-author b{display:block;font-size:13px}.rail-author small{display:block;font-size:10px;color:#b7c4d4;line-height:1.35}
.museum-page .heading{position:relative;isolation:isolate;overflow:hidden;border:1px solid #a3834e;border-radius:17px;margin:24px 0 15px;padding:33px clamp(20px,4vw,52px);text-align:left;background:linear-gradient(90deg,#061523 0%,#091b33 50%,transparent 100%),url('banner-celeste.webp') center right/cover no-repeat;min-height:220px;display:flex;flex-direction:column;justify-content:center}.museum-page .heading:before{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(95deg,#041322f9 0%,#041527d9 43%,#03152827 100%)}.museum-page .heading h1{font-size:clamp(2rem,4vw,4.2rem)}.museum-page .heading h1 em{font-size:clamp(1.5rem,2.4vw,2.5rem)}.museum-page .heading>p:not(.eyebrow){font-size:clamp(1.05rem,1.4vw,1.25rem);margin:12px 0;max-width:650px}.museum-page .head-actions{justify-content:flex-start;margin-top:12px}
.visual-chooser{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;border:1px solid #a5895947;border-radius:12px;padding:11px 15px;background:#091c30e3}.visual-chooser b{font-size:12px;color:#f2dbad;display:block}.visual-chooser span{font-size:11px;color:#bac9d7}.model-switch{display:flex;gap:5px;flex-wrap:wrap}.model-switch button{padding:7px 11px;border-radius:8px;border:1px solid #536579;background:#0b2236;color:#dbe7ef;font-size:11px}.model-switch button[aria-pressed=true]{background:#d6ad68;border-color:#f5d794;color:#071526;font-weight:800}
.museum-page .chamber-cards{margin:29px 0 30px;scroll-margin-top:105px}.museum-page .gallery-title h2{font-size:clamp(1.7rem,2.6vw,2.5rem)}.museum-page .cards{gap:13px}.card-chapter{transition:transform .2s,box-shadow .2s;border-color:#957342;box-shadow:0 8px 18px #0005}.card-chapter img{height:clamp(128px,13vw,180px);object-position:center}.card-chapter:hover{transform:translateY(-2px)}.card-chapter span{min-height:72px}.card-chapter strong{font-size:clamp(18px,1.6vw,24px)}
.museum-page .exhibit-grid{grid-template-columns:minmax(180px,230px) minmax(0,1fr);margin-top:35px}.museum-page .scenic{height:clamp(280px,30vw,490px)}.museum-page .scenic img{image-rendering:auto}.museum-page .narration{margin:18px 0}.museum-page .narration h2{font-size:25px}
/* Model 2: warm classical museum. No asset loading or JS audio changes. */
body[data-modelo=classico]{--gold:#f0c176;--ui-accent:#e9b66b;background:#110f15}body[data-modelo=classico] .exp-stars{filter:sepia(.32) brightness(.65)}body[data-modelo=classico] .museum-global-side{background:linear-gradient(#1e1721f5,#100e16f5);border-color:#bb8556}body[data-modelo=classico] .rail-group nav a{background:linear-gradient(120deg,#271d21,#17151e);border-color:#906f51}body[data-modelo=classico] .museum-page .heading{border-color:#ecc488;box-shadow:0 0 25px #b7885329}body[data-modelo=classico] .card-chapter{border-radius:5px;border:2px solid #d1a467;background:#211a22}body[data-modelo=classico] .card-chapter img{filter:sepia(.16) saturate(1.08)}body[data-modelo=classico] .chapter-link.active{background:#503d2b99}body[data-modelo=classico] .visual-chooser{background:#1b1b23f2}
/* Model 3: cosmos immersive. More celestial blue, spacious imagery. */
body[data-modelo=cosmos]{--gold:#9de5ff;--ui-accent:#66d4e9;background:#020b17}body[data-modelo=cosmos] .exp-stars{filter:hue-rotate(16deg) brightness(1.2)}body[data-modelo=cosmos] .museum-global-side{border-color:#4286a6;background:#031126f5}body[data-modelo=cosmos] .rail-group nav a{background:linear-gradient(105deg,#0a2c43,#041629);border-color:#326a90}body[data-modelo=cosmos] .card-chapter{border-color:#59b5cb;border-radius:16px;box-shadow:0 0 30px #00c8ff12}body[data-modelo=cosmos] .card-chapter img{height:clamp(165px,18vw,244px);filter:saturate(1.12)}body[data-modelo=cosmos] .museum-page .heading{box-shadow:0 0 50px #02b9e321;border-color:#5393af}body[data-modelo=cosmos] .model-switch button[aria-pressed=true]{background:#80d7e8;border-color:#abedff}body[data-modelo=cosmos] .visual-chooser{background:#071d35ee}body[data-modelo=cosmos] .narration{border-color:#4b9fb3}body[data-modelo=cosmos] .cards{gap:17px}
@media(max-width:1170px){.museum-layout{grid-template-columns:230px minmax(0,1fr);gap:15px;padding:0 14px}.museum-page .exhibit-grid{grid-template-columns:1fr}.museum-page .cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:850px){.museum-layout{display:block}.museum-global-side{position:relative;top:auto;max-height:none;margin:14px 0 0}.museum-global-side .rail-group{display:none}.museum-global-side .rail-brand{display:none}.museum-global-side .rail-author{max-width:100%}.museum-page .heading{margin-top:13px}.museum-page .cards{grid-template-columns:repeat(2,minmax(0,1fr))}.museum-page .scenic{height:290px}}
@media(max-width:540px){.museum-layout{padding:0 10px}.museum-page .heading{min-height:220px;padding:22px 16px}.museum-page .cards{gap:8px}.museum-page .cards img{height:135px}.museum-page .cards .card-chapter strong{font-size:17px}.museum-page .cards .card-chapter span{padding:8px;min-height:78px}.museum-page .heading h1{font-size:2.1rem}.visual-chooser{padding:10px}.visual-chooser>div{width:100%}.model-switch{width:100%}.model-switch button{flex:1;padding:8px 5px}.museum-page .gallery-title h2{font-size:1.9rem}}
@media(prefers-reduced-motion:reduce){.card-chapter{transition:none!important}}

.rail-mobile-toggle{display:none}
@media(max-width:850px){.rail-mobile-toggle{display:flex;justify-content:space-between;align-items:center;width:100%;border:1px solid #d1a567;background:#0a2438;color:#f5d9aa;padding:10px 12px;border-radius:10px;font-weight:700;margin-bottom:10px}.museum-global-side .rail-group{display:none}.museum-global-side.mobile-open .rail-group{display:block}.museum-global-side.mobile-open .rail-brand{display:flex}}