@font-face{font-family:Archivo;src:url('assets/fonts/archivo-normal-vietnamese.woff2') format('woff2');font-weight:100 900;font-display:swap;unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Archivo;src:url('assets/fonts/archivo-normal-latin.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{font-family:Archivo,sans-serif;color:#fffaf0;background:#2c211a;color-scheme:dark;--paper:#f7f1e5;--ink:#4b3024;--muted:#d8c8b1;--gold:#e7d6af;--panel:#35251c;--line:#ffffff25}*{box-sizing:border-box}body{margin:0}button,input,a{ -webkit-tap-highlight-color:transparent}button,input{font:inherit}button{color:inherit;cursor:pointer;border:0}button:focus-visible,a:focus-visible,input:focus-visible,#stage:focus-visible{outline:3px solid #e4b75f;outline-offset:3px}button:hover{filter:brightness(1.12)}button:disabled{opacity:.4;cursor:default}[hidden]{display:none!important}svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}#tour{height:100dvh;min-height:460px;overflow:hidden;position:relative}#stage,#canvas,#hotspots,#transition{position:absolute;inset:0;width:100%;height:100%}#stage{touch-action:none;outline-offset:-4px}#canvas{cursor:grab}#canvas:active{cursor:grabbing}canvas{display:block}#transition{object-fit:cover;pointer-events:none;z-index:1}#hotspots{pointer-events:none;z-index:2}header{position:absolute;top:0;left:0;width:100%;padding:28px 32px 55px;background:transparent;display:flex;align-items:start;justify-content:space-between;pointer-events:none}.identity h1{font-weight:600;font-size:28px;letter-spacing:-.025em;margin:0 0 6px}.identity>span{font-size:13px;color:#eee1ca}.header-link{pointer-events:auto;display:flex;align-items:center;gap:7px;background:#35251cdf;padding:10px 14px;border-radius:8px;font-size:13px}.scene-heading{position:absolute;top:122px;left:32px;max-width:360px;pointer-events:none;background:#302118d9;padding:14px 18px;border-radius:10px}.scene-heading>span{font-size:12px;color:#e3d5bd}.scene-heading h2{font-size:19px;line-height:1.4;font-weight:500;margin:6px 0 0}#scene-stories{display:flex;flex-wrap:wrap;gap:6px}#scene-stories:empty{display:none}#scene-stories button{display:flex;align-items:center;gap:6px;text-align:left;background:transparent;border-top:1px solid #ffffff30;padding:10px 0 0;margin-top:10px;font-size:12px;line-height:1.4;pointer-events:auto;color:#f4d99f}#scene-stories svg{width:17px;height:17px}footer{position:absolute;bottom:0;width:100%;padding:55px 32px 20px;background:transparent;pointer-events:none}.next>span{font-size:12px;color:#eee1ca}.next{margin-bottom:18px}#connections{display:flex;gap:8px;margin-top:9px;max-width:min(850px,calc(100% - 440px));overflow:auto;scrollbar-width:thin;pointer-events:auto;padding-bottom:4px}#connections button{flex:none;pointer-events:auto;border:1px solid #ffffff5e;background:#3b291edb;border-radius:8px;padding:10px 13px;font-size:13px;display:flex;align-items:center;gap:7px;min-height:42px}em{font-style:normal;color:#f8cf89;font-size:11px}.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center}.toolbar button{pointer-events:auto;background:var(--paper);color:var(--ink);min-height:48px}#browse{display:flex;align-items:center;gap:10px;padding:0 20px;border-radius:9px;font-weight:500}.tools{display:flex;gap:1px;background:var(--paper);border-radius:9px;overflow:hidden}.icon{display:grid;place-items:center;min-width:44px;min-height:44px;background:transparent}.toolbar .icon{width:48px}.hint{font-size:12px;color:#eee1ca;margin:15px 0 0;display:flex;justify-content:space-between;gap:10px}.spot{position:absolute;transform:translate(-50%,-50%);background:#593a28ed;color:#fff;padding:10px 14px;border:1px solid #f2dfbd9e;border-radius:28px;pointer-events:auto;display:flex;gap:8px;align-items:center;min-height:46px;box-shadow:0 6px 20px #0004;white-space:nowrap;font-size:13px}.spot.draft{border-style:dashed;border-color:#f8cf89}.spot small{display:block;margin-top:2px;color:#f8cf89;text-align:left;font-size:11px}.spot.info-spot{background:var(--paper);color:var(--ink);border:0;font-weight:500}.spot-title{display:block;max-width:240px;overflow:hidden;text-overflow:ellipsis}#status,#notice{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#35261eeb;color:#fff;padding:16px 22px;border-radius:10px;z-index:6;max-width:85%;text-align:center;font-size:14px}#status button{display:block;margin:12px auto 0;background:#faf1db;color:#593a28;border-radius:6px;padding:10px}#notice{top:30%;pointer-events:none}
#panel,#detail{position:absolute;right:24px;top:24px;bottom:160px;width:390px;background:var(--panel);z-index:8;border-radius:14px;box-shadow:0 16px 50px #0005;display:flex;flex-direction:column;overflow:hidden}.panel-head{padding:22px 18px 15px;display:flex;align-items:start;justify-content:space-between;gap:10px}.panel-head h2{font-size:21px;font-weight:500;margin:0;letter-spacing:-.02em}.panel-head p{font-size:12px;color:var(--muted);margin:7px 0 0}.panel-head .icon{margin:-9px -8px 0 0}.library-tabs{display:flex;padding:0 18px;border-bottom:1px solid var(--line)}.library-tabs button{background:none;flex:1;padding:12px 4px;border-bottom:2px solid transparent;font-weight:500;font-size:14px;color:var(--muted)}.library-tabs button[aria-pressed=true]{color:var(--gold);border-color:var(--gold)}.library-tabs span{font-size:11px;margin-left:5px;font-variant-numeric:tabular-nums}.search-field{display:flex;align-items:center;gap:8px;margin:16px 18px 12px;border:1px solid #ffffff45;border-radius:7px;padding:0 11px;color:var(--muted)}.search-field svg{width:18px}.search-field input{width:100%;height:42px;border:0;background:none;color:var(--paper);font-size:13px;min-width:0;caret-color:var(--gold)}input::placeholder{color:var(--muted)}.filters{display:flex;gap:6px;padding:0 18px 8px;flex-shrink:0;overflow-x:auto;scrollbar-width:thin}.filters button{white-space:nowrap;padding:9px 12px;min-height:36px;border-radius:6px;background:#533b2b;font-size:12px}.filters button[aria-pressed=true]{background:var(--gold);color:var(--ink)}#result-count{font-size:11px;color:var(--muted);padding:4px 20px 9px}#scene-list,#story-list{overflow:auto;padding:0 10px 16px;scrollbar-color:#a38a70 #35251c;scrollbar-width:thin;overscroll-behavior:contain;min-height:0}.scene-card{display:flex;align-items:center;width:100%;text-align:left;background:transparent;padding:8px;gap:13px;border-radius:8px}.scene-card[aria-current=true]{background:#71513b}.scene-card img{width:96px;height:60px;object-fit:cover;border-radius:5px}.scene-card strong{font-size:14px;line-height:1.4;font-weight:500}.scene-card small{display:block;color:#e5d6be;font-size:11px;margin-bottom:4px}.story-card{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:16px 8px;background:transparent;border-bottom:1px solid var(--line)}.story-card img{width:76px;height:84px;object-fit:cover;border-radius:4px;background:#e9e0cd}.story-card>span{flex:1;min-width:0}.story-card small{display:block;color:var(--gold);font-size:11px;line-height:1.5;margin-bottom:4px}.story-card strong{font-size:15px;font-weight:500;line-height:1.4;display:block}.story-summary{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px;line-height:1.5;color:var(--muted);margin-top:6px}.story-card>svg{width:16px}.empty-state{padding:12px;font-size:14px;line-height:1.6;color:var(--muted)}
#detail{width:480px;background:var(--paper);color:var(--ink);color-scheme:light;bottom:24px}.detail-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;border-bottom:1px solid #4b302425;flex:none}.detail-bar>button:first-child{display:flex;align-items:center;gap:6px;min-height:44px;padding:0 4px;background:transparent;font-size:13px}#detail-scroll{overflow:auto;min-height:0;overscroll-behavior:contain;scrollbar-color:#a38a70 var(--paper);scrollbar-width:thin}.detail-copy{padding:26px 26px 32px}#detail-title{font-size:28px;line-height:1.2;font-weight:500;letter-spacing:-.025em;margin:0 0 12px;text-wrap:balance;outline:none}.detail-meta{font-size:12px;color:#75604d;margin:0 0 24px}.detail-summary{font-size:17px;line-height:1.6;margin:0 0 24px;font-weight:500}.body-paragraph{font-size:14px;line-height:1.85;margin:0 0 18px}.detail-copy h3{font-size:16px;line-height:1.4;margin:0 0 12px;font-weight:600}.detail-copy section{margin-top:28px}.narration{border-block:1px solid #4b30242a;padding:18px 0;margin:24px 0}.narration h3{display:flex;gap:8px;align-items:center}.narration audio{width:100%;height:42px}.narration p{font-size:11px;line-height:1.5;color:#75604d;margin:9px 0 0}.video-figure{margin:24px -26px}.video-figure video{width:100%;max-height:320px;display:block;background:#302118}.video-figure figcaption{font-size:12px;color:#75604d;padding:10px 26px}.media-error{font-size:12px!important;color:#8c3e21!important;line-height:1.5}.artifact-gallery h3{display:flex;justify-content:space-between}.artifact-gallery h3 span{font-size:12px;font-weight:400;color:#75604d}.gallery-hint{font-size:12px;color:#75604d;line-height:1.5;margin:0 0 14px}.gallery-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}.gallery-grid>button{min-width:0;padding:0;background:transparent;text-align:left;display:flex;flex-direction:column;align-items:stretch}.gallery-grid>button:first-child:last-child{grid-column:1/-1}.gallery-grid img{width:100%;height:150px;padding:16px;box-sizing:border-box;object-fit:contain;background:#e9e0cf;border-radius:5px}.gallery-grid>button:first-child:last-child img{height:245px}.gallery-grid span{font-size:12px;line-height:1.5;margin-top:8px}.image-kind{font-size:10px;line-height:1.5;margin-top:4px;color:#79634e}.related-scenes{border-top:1px solid #4b302425;padding-top:24px}.related-scenes button{display:flex;align-items:center;gap:9px;background:#e7dfcd;color:var(--ink);width:100%;padding:12px;margin:8px 0;border-radius:6px;font-size:12px;line-height:1.4;text-align:left}.source-list{border-top:1px solid #4b302425;padding-top:24px}.source-list ul{padding-left:18px;margin:0}.source-list li{margin:9px 0;font-size:12px;line-height:1.6}.source-list a{color:#805937;text-underline-offset:3px}.source-list a:hover{color:#3b291e}body.detail-open .tools{visibility:hidden}body.detail-open .hint span,body.panel-open .header-link,body.detail-open .header-link{visibility:hidden}
#image-viewer{border:0;padding:0;background:#291d16;color:var(--paper);width:calc(100vw - 48px);height:calc(100dvh - 48px);max-width:1600px;max-height:none;border-radius:12px;overflow:hidden}#image-viewer[open]{display:flex;flex-direction:column}#image-viewer::backdrop{background:#1e140eed}.viewer-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 18px;gap:16px;flex:none;border-bottom:1px solid var(--line)}.viewer-bar p{margin:0;font-size:14px;line-height:1.4}.image-viewport{flex:1;min-height:0;overflow:auto;display:flex;align-items:center;justify-content:center;padding:16px}.image-viewport img{display:block;max-width:100%;max-height:100%;object-fit:contain}.zoomed .image-viewport{display:block}.zoomed .image-viewport img{max-width:none;max-height:none;width:max(150%,1600px);height:auto}.viewer-controls{display:flex;align-items:center;justify-content:center;gap:22px;padding:10px 20px;flex:none;border-top:1px solid var(--line);font-size:12px}.viewer-controls>button:not(.icon){display:flex;align-items:center;gap:7px;background:#624631;padding:10px 14px;border-radius:6px;min-height:44px;font-size:12px}.viewer-controls a{color:var(--gold);text-underline-offset:3px}.viewer-controls>span{font-variant-numeric:tabular-nums;min-width:45px;text-align:center}::selection{background:#e7d6af;color:#593a28}body.embed header .identity>span{display:none}

@media(max-width:800px){header{padding:20px 18px 50px}.identity h1{font-size:24px}.identity>span{font-size:12px}.header-link{font-size:0;padding:8px}.header-link svg{width:22px}.scene-heading{left:18px;top:108px;max-width:calc(100% - 36px);padding:11px 14px}.scene-heading h2{font-size:17px}#scene-stories{max-height:90px;overflow:auto}#scene-stories button{font-size:11px;margin-top:7px;padding-top:7px}footer{padding:40px 16px max(16px,env(safe-area-inset-bottom))}.hint span{display:none}.hint{font-size:11px}.toolbar{gap:8px}#browse{padding:0 12px;font-size:13px}.toolbar .icon{width:42px;min-width:38px;min-height:46px}#share,#home{display:none}.next{margin-bottom:12px}#connections{gap:6px;max-width:100%}#connections button{white-space:nowrap;font-size:12px}.spot{font-size:12px;padding:9px 11px}.spot .spot-title{max-width:180px}.panel-head{padding:16px 16px 12px}.panel-head h2{font-size:19px}.panel-head p{font-size:11px}#panel{inset:auto 12px 118px;width:auto;height:min(51dvh,460px);border-radius:12px}.library-tabs{padding:0 16px}.library-tabs button{padding:10px 4px;font-size:13px}.search-field{margin:12px 16px 9px}.search-field input{height:38px}.filters{padding:0 16px 6px}.filters button{padding:7px 11px;min-height:34px}#result-count{padding-bottom:7px}body.panel-open .next,body.detail-open .next{display:none}#detail{inset:70px 10px 12px;width:auto;border-radius:12px}.detail-copy{padding:22px}#detail-title{font-size:26px}.video-figure{margin-inline:-22px}.video-figure figcaption{padding-inline:22px}.detail-summary{font-size:16px}.body-paragraph{font-size:14px}body.detail-open footer{visibility:hidden}#image-viewer{width:calc(100vw - 16px);height:calc(100dvh - 20px);border-radius:9px}.viewer-bar{padding:6px 10px}.viewer-bar p{font-size:12px}.viewer-controls{gap:5px;padding:8px 5px;font-size:11px}.viewer-controls>button:not(.icon){padding:8px;font-size:11px}.viewer-controls a{font-size:10px;max-width:70px;text-align:center;line-height:1.5}.image-viewport{padding:8px}.gallery-grid img{height:140px}}
@media(max-width:360px){#browse{padding:0 9px;font-size:12px}.toolbar .icon{width:38px;min-width:38px}.toolbar .tools #fullscreen{display:none}.detail-copy{padding:18px}.gallery-grid{gap:16px 10px}.gallery-grid img{height:115px}.video-figure{margin-inline:-18px}.viewer-controls .icon{min-width:32px}.viewer-controls svg{width:17px}.identity>span{font-size:11px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

#scene-filters{flex-wrap:wrap;overflow:visible}.search-field:focus-within{border-color:#e4b75f;outline:2px solid #e4b75f;outline-offset:2px}.search-field input:focus-visible{outline:none}

.transcript{margin-top:14px}.transcript summary{font-size:12px;font-weight:500;cursor:pointer;padding:8px 0;min-height:34px}.transcript p,.narration .transcript p{font-size:13px;line-height:1.75;margin:5px 0 0;color:#71513b}.transcript summary:focus-visible{outline:2px solid #ac7726;outline-offset:3px}#image-kind{display:block;font-size:11px;color:#e0ceb0;line-height:1.5;margin-top:4px}#image-kind.is-ai{color:#f4d291}.viewer-bar>div{min-width:0}

.category-select{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;font-size:12px;color:var(--muted)}.category-select select{font:inherit;font-size:12px;border:1px solid #ffffff45;border-radius:6px;padding:9px 10px;background:#533b2b;color:var(--paper);min-width:185px;min-height:38px;cursor:pointer}.category-select select:focus-visible{outline:2px solid #e4b75f;outline-offset:2px}@media(max-width:360px){.category-select select{min-width:170px}}

/* Compact panorama controls leave the photographs visible. */
.spot{width:44px;height:44px;min-height:44px;padding:0;justify-content:center;border-radius:50%;box-shadow:0 3px 10px #0004}
.spot>span{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%);padding:9px 12px;border-radius:6px;background:#35251c;color:#fffaf0;visibility:hidden;pointer-events:none;max-width:240px;white-space:normal;text-align:center;line-height:1.4}
.spot:hover>span,.spot:focus>span{visibility:visible}
.spot:focus-visible,.spot:hover{z-index:3}
.spot.info-spot{background:#f7f1e5eb}
.spot.info-spot>span{color:#fffaf0}
.scene-heading{max-width:300px;padding:10px 14px}
#scene-stories{max-height:112px;overflow:auto;flex-direction:column;flex-wrap:nowrap;align-items:stretch}
#scene-stories button{margin-top:4px;padding-top:6px;font-size:11px}
@media(hover:none){.spot:hover:not(:focus)>span{visibility:hidden}}
@media(max-width:800px){.scene-heading{max-width:calc(100% - 36px)}#scene-stories{max-height:60px}.spot{padding:0}}

/* Labels size to their content rather than the marker's 44px width. */
.spot>span{width:max-content;max-width:min(240px,calc(100vw - 32px));overflow:visible;text-overflow:clip}
.spot>span.below{top:calc(100% + 10px);bottom:auto}
.spot.info-spot{background:rgb(247 241 229 / 48%);border:1px solid rgb(255 250 240 / 80%);color:#543624}
.spot.info-spot::before,.spot.info-spot::after{content:"";position:absolute;inset:-2px;border:1px solid rgb(255 250 240 / 85%);border-radius:50%;pointer-events:none;animation:info-ripple 3s ease-out infinite}
.spot.info-spot::after{animation-delay:1.5s}
@keyframes info-ripple{0%{transform:scale(1);opacity:.7}75%,100%{transform:scale(1.65);opacity:0}}
@media(prefers-reduced-motion:reduce){.spot.info-spot::before,.spot.info-spot::after{animation:none;display:none}}
#welcome{width:min(560px,calc(100vw - 32px));max-width:100%;max-height:calc(100dvh - 32px);padding:32px;border:0;border-radius:14px;background:var(--paper);color:var(--ink);overflow:auto;box-shadow:0 20px 70px #0006}
#welcome::backdrop{background:rgb(5 20 17 / 65%)}
#welcome h2{font-size:28px;font-weight:550;line-height:1.25;margin:0 0 16px}
#welcome-choice p{font-size:16px;line-height:1.6;margin:0 0 28px}
.welcome-actions{display:flex;flex-direction:column;gap:10px}.welcome-actions button{min-height:48px;padding:12px 16px;border-radius:7px;background:var(--ink);color:var(--paper);font-weight:500}
.welcome-actions #intro-skip{background:transparent;color:var(--ink);border:1px solid #4b302440}
@media(max-width:600px){#welcome{padding:24px}#welcome h2{font-size:24px}.intro-bar{font-size:12px;gap:8px}.intro-bar button{font-size:12px;white-space:nowrap}}

#scene-preview{position:fixed;width:280px;z-index:12;pointer-events:none;background:#35251c;color:#fffaf0;border-radius:10px;overflow:hidden;box-shadow:0 10px 30px #0006}#preview-canvas{width:280px;height:158px}#scene-preview strong{display:block;font-size:14px;line-height:1.4;padding:12px 14px 4px;font-weight:500}#scene-preview>span{display:block;font-size:11px;color:#e5d5bb;padding:0 14px 12px}

#ground-access{pointer-events:auto;display:flex;align-items:center;gap:8px;background:var(--paper);color:var(--ink);padding:10px 12px;min-height:44px;margin-top:12px;border-radius:7px;font-size:12px;line-height:1.4;text-align:left}
#ground-access svg,.ground-spot>svg{transform:rotate(180deg)}.ground-spot{border-color:#fffaf0;background:#543624e8}

#media-preference{margin-left:auto;margin-right:10px;font-size:12px;pointer-events:auto}
body.panel-open #media-preference,body.detail-open #media-preference{visibility:hidden}
.audio-player{display:flex;align-items:center;gap:10px;padding:6px 10px;background:#e4e0cf;border:1px solid #9c8067;border-radius:10px}
.audio-play{display:grid;place-items:center;width:40px;height:40px;flex:0 0 40px;border-radius:50%;background:#4b3024;color:#fffaf0}.audio-play svg{width:20px;height:20px}.audio-track{flex:1;min-width:0}.audio-time{display:block;font-size:11px;font-weight:600;font-variant-numeric:tabular-nums;color:#4b3024;margin-bottom:0}
.audio-seek{display:block;width:100%;height:18px;margin:0;accent-color:#4b3024;cursor:pointer}.audio-mute{padding:8px 4px;background:transparent;color:#4b3024;font-size:11px;font-weight:600;min-height:44px}
.narration audio:not([controls]){display:none}
@media(max-width:800px){#media-preference{font-size:10px;padding:8px;max-width:110px}.audio-player{gap:8px;padding:6px 8px}.audio-play{width:40px;height:40px;flex-basis:40px}.audio-time{font-size:11px}}

.media-setting{background:transparent;color:#71513b;text-decoration:underline;text-underline-offset:3px;font-size:12px;min-height:36px;padding:8px 0}

#guide-controls{position:absolute;z-index:15;left:50%;top:24px;transform:translateX(-50%);background:#35251c;color:#fffaf0;padding:12px 16px;border-radius:10px;max-width:min(480px,calc(100vw - 24px));box-shadow:0 8px 30px #0005}#guide-status{display:block;font-size:12px;line-height:1.5;margin-bottom:8px}#guide-controls>div{display:flex;gap:8px}#guide-controls button{min-height:40px;padding:8px 14px;border-radius:6px;background:#f7f1e5;color:#4b3024;font-size:13px}#guide-stop{background:#71513b!important;color:#fffaf0!important}
@media(max-width:800px){#guide-controls{top:auto;bottom:12px;width:calc(100% - 24px);max-width:none}#guide-controls>div{justify-content:flex-end}#guide-status{margin-bottom:4px}body:has(#guide-controls:not([hidden])) #detail{bottom:118px}body:has(#guide-controls:not([hidden])) footer{bottom:108px}}

#tour-loading{position:fixed;inset:0;z-index:30;background:#35251c;display:grid;place-items:center;isolation:isolate;transition:opacity .35s ease;overflow:hidden}#tour-loading.ready{opacity:0;pointer-events:none}.loading-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3;z-index:-1}.loading-content{text-align:center;padding:32px;color:#fffaf0;max-width:560px}.loading-mark{width:64px;height:54px;stroke:#e7d6af;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}.loading-content h1{font-size:clamp(32px,5vw,52px);font-weight:550;margin:22px 0 12px;letter-spacing:-.03em}.loading-content p{font-size:15px;line-height:1.6;color:#f0e4cf;margin:0 0 36px}.loading-track{height:3px;width:200px;margin:0 auto 14px;background:#ffffff2b;overflow:hidden;border-radius:3px}#loading-progress{display:block;background:#e7d6af;width:8%;height:100%;transition:width .35s ease}#loading-message{font-size:12px;color:#f0e4cf}#loading-retry{display:block;margin:18px auto;background:#f7f1e5;color:#4b3024;padding:12px 20px;border-radius:8px}
#welcome{width:min(860px,calc(100vw - 40px));padding:34px 36px 20px;border-radius:18px}.welcome-heading{text-align:center;margin-bottom:26px}.welcome-symbol{display:inline-block;font-size:14px;font-weight:600;border:1px solid #af977c;border-radius:50%;width:52px;height:52px;line-height:50px;margin-bottom:18px;color:#775337}.welcome-heading h2{margin-bottom:10px!important;font-size:30px!important}.welcome-heading p{margin:0!important;font-size:14px!important;color:#75604d}.experience-options{display:grid;grid-template-columns:1fr 1fr;gap:20px}.experience{padding:24px;display:flex;flex-direction:column;border-radius:12px}.guided-option{background:#4b3024;color:#fffaf0}.explore-option{border:1px solid #b9a38a}.experience-icon{width:42px;height:42px;stroke:currentColor;stroke-width:1.5;fill:none;margin-bottom:20px}.guided-option .experience-icon{color:#e7d6af}.experience h3{font-size:23px;font-weight:500;margin:0 0 12px;letter-spacing:-.025em}.experience p{font-size:14px!important;line-height:1.65!important;margin:0 0 20px!important}.guided-option p{color:#e9dbc3}.experience-note{font-size:12px;line-height:1.5;color:#e9dbc3;margin-bottom:22px}.experience>button{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;margin-top:auto;padding:13px 14px;min-height:48px;border-radius:7px;font-size:13px;font-weight:600;text-align:left;background:#f7f1e5;color:#4b3024}.explore-option>button{background:#4b3024;color:#fffaf0}.experience>button span{font-size:20px}.autoplay-option{display:flex;gap:10px;align-items:flex-start;margin:0 0 22px;padding:12px 0;border-top:1px solid #cfbda1;cursor:pointer}.autoplay-option input{width:20px;height:20px;margin:1px 0 0;flex-shrink:0;accent-color:#4b3024}.autoplay-option strong{display:block;font-size:12px;line-height:1.5;font-weight:600}.autoplay-option small{display:block;font-size:11px;line-height:1.5;color:#75604d;margin-top:4px}.welcome-footnote{font-size:11px!important;color:#75604d;text-align:center;margin:20px 0 0!important}
@media(max-width:650px){#welcome{padding:24px 18px 16px;width:calc(100vw - 24px)}.welcome-heading{margin-bottom:20px}.welcome-symbol{display:none}.welcome-heading h2{font-size:24px!important}.experience-options{grid-template-columns:1fr;gap:12px}.experience{padding:18px}.experience-icon{width:32px;height:32px;margin-bottom:12px}.experience h3{font-size:21px}.experience p{font-size:13px!important;margin-bottom:14px!important}.experience-note{margin-bottom:16px;font-size:11px}.autoplay-option{margin-bottom:16px}.welcome-heading p{font-size:12px!important}}
@media(prefers-reduced-motion:reduce){#tour-loading,#loading-progress{transition:none}}

#welcome{color-scheme:light}.autoplay-option input{appearance:none;width:36px;height:22px;border:1px solid #a28b73;border-radius:12px;background:#e0d0b7;position:relative;cursor:pointer}.autoplay-option input::before{content:"";position:absolute;width:16px;height:16px;left:2px;top:2px;border-radius:50%;background:#fffaf0;box-shadow:0 1px 3px #4b302440}.autoplay-option input:checked{background:#4b3024;border-color:#4b3024}.autoplay-option input:checked::before{left:16px}

.viewer-controls{flex-wrap:wrap}

/* Guided playback lives beside the directory button, leaving the panorama clear. */
#guide-controls{position:relative;inset:auto;left:auto;top:auto;bottom:auto;transform:none;display:flex;align-items:center;gap:12px;flex:1;min-width:0;max-width:540px;padding:0 12px;background:transparent;box-shadow:none;border-radius:0;pointer-events:auto}
#guide-status{font-size:12px;line-height:1.45;margin:0;flex:1;min-width:0;max-width:260px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-shadow:0 1px 3px #000}
#guide-controls>div{flex-shrink:0;gap:6px}#guide-controls button{min-height:44px;font-size:12px;padding:10px 12px;background:#f7f1e5;color:#4b3024}
@media(max-width:800px){#guide-controls{width:auto;max-width:none;padding:0;display:flex;flex-direction:column;align-items:stretch;gap:6px}#guide-status{max-width:none;font-size:10px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#guide-controls>div{justify-content:flex-start}#guide-controls button{font-size:11px;padding:8px 10px;min-height:36px}body:has(#guide-controls:not([hidden])) footer{bottom:0;visibility:visible;padding-top:18px}body:has(#guide-controls:not([hidden])) footer .tools,body:has(#guide-controls:not([hidden])) footer .next,body:has(#guide-controls:not([hidden])) footer .hint{display:none}body:has(#guide-controls:not([hidden])) #detail{bottom:108px}body:has(#guide-controls:not([hidden])) #browse{min-height:48px}body:has(#guide-controls:not([hidden])) .toolbar{align-items:flex-end}}

/* Keep the entrance focused on choosing an experience, then reveal tour UI. */
body.choosing-experience #tour>header,
body.choosing-experience .scene-heading,
body.choosing-experience #tour>footer,
body.choosing-experience #panel,
body.choosing-experience #detail,
body.choosing-experience #hotspots,
body.choosing-experience #scene-preview{visibility:hidden!important;pointer-events:none!important}
.header-actions{display:flex;align-items:center;gap:10px;pointer-events:auto}
.header-actions .header-link{height:44px;min-height:44px;padding:0 14px;font-size:13px;line-height:1;white-space:nowrap;border:1px solid #ffffff24;background:#35251ce8;border-radius:9px;gap:8px}
.header-actions #media-preference{margin:0;font-size:13px;max-width:none}
.header-actions .header-link svg{width:19px;height:19px}
@media(max-width:800px){.header-actions{gap:6px}.header-actions .header-link{padding:0 10px}.header-actions #media-preference{font-size:10px}.header-actions #about-tour{font-size:0}.header-actions #about-tour svg{width:20px}}

/* Draw attention only to the introduction without moving its label. */
.header-actions .header-link{position:relative}
.header-actions :where(#about-tour)::after{content:"";position:absolute;inset:-1px;border:1px solid var(--gold);border-radius:inherit;pointer-events:none;opacity:0;animation:header-invite 6s ease-out infinite}
.header-actions #about-tour::after{animation-delay:0s}
@keyframes header-invite{0%{opacity:0;transform:scale(1)}4%{opacity:.65;transform:scale(1)}25%{opacity:0;transform:scale(1.12,1.4)}100%{opacity:0;transform:scale(1.12,1.4)}}
body.choosing-experience .header-actions .header-link::after,
body.panel-open .header-actions .header-link::after,
body.detail-open .header-actions .header-link::after,
.header-actions:hover .header-link::after,
.header-actions:focus-within .header-link::after{animation:none}
@media(prefers-reduced-motion:reduce){.header-actions .header-link::after{animation:none}}

/* Separate navigation, viewing tools and sharing by purpose. */
.navigation-tools{display:flex;align-items:center;background:var(--paper);border-radius:9px;flex-shrink:0}
.navigation-tools #home{border-radius:9px 0 0 9px}
.navigation-tools #browse{border-radius:0 9px 9px 0;position:relative;padding-left:18px}
.navigation-tools #browse::before{content:"";position:absolute;left:0;height:22px;width:1px;background:#4b302426}
.view-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.view-actions .tools{gap:0;overflow:visible}
.view-actions .tools button:first-child{border-radius:9px 0 0 9px}
.view-actions .tools button:last-child{border-radius:0 9px 9px 0}
.toolbar .share-action{border-radius:9px}
body.detail-open .view-actions{visibility:hidden}

#playback-menu{position:fixed;inset:auto;margin:0;width:310px;max-width:calc(100vw - 24px);padding:8px;border:1px solid #4b302428;border-radius:12px;background:var(--paper);color:var(--ink);box-shadow:0 12px 32px #0003;color-scheme:light}
#playback-menu::backdrop{background:transparent}
#quick-guide{display:flex;align-items:center;gap:12px;width:100%;padding:13px 12px;text-align:left;background:#4b3024;color:var(--paper);border-radius:7px}
#playback-menu strong{display:block;font-size:13px;font-weight:600;line-height:1.5}
#playback-menu small{display:block;font-size:11px;line-height:1.5;margin-top:3px}
#quick-guide small{color:#e3d5bd}
.quick-autoplay{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 12px 10px;cursor:pointer}
.quick-autoplay small{color:#75604d}
#quick-autoplay{appearance:none;flex:none;width:36px;height:22px;margin:0;border:1px solid #a28b73;border-radius:12px;background:#e0d0b7;position:relative;cursor:pointer}
#quick-autoplay::before{content:"";position:absolute;width:16px;height:16px;left:2px;top:2px;border-radius:50%;background:#fffaf0}
#quick-autoplay:checked{background:#4b3024;border-color:#4b3024}
#quick-autoplay:checked::before{left:16px}
body:has(#playback-menu:popover-open) .header-actions .header-link::after{animation:none}

/* Identity is presented in the introduction; keep header actions right-aligned. */
header{justify-content:flex-end}

.related-scenes button{padding:8px;gap:12px;text-align:left}
.related-scenes button>img{width:96px;height:64px;object-fit:cover;border-radius:5px;flex:none}
.related-scenes button>span{flex:1;min-width:0}
.related-scenes strong{display:block;font-size:13px;line-height:1.5;font-weight:600}
.related-scenes small{display:block;font-size:11px;line-height:1.5;margin-top:4px;color:#75604d}
.related-scenes button>svg{width:18px;height:18px;margin-right:4px}

/* Guide attention between the two entrance choices, one at a time. */
.experience>button{position:relative}
.experience>button::after{content:"";position:absolute;inset:-2px;border:2px solid #dcb56b;border-radius:9px;pointer-events:none;opacity:0}
#welcome[open] .experience>button::after{animation:experience-invite 6s ease-out infinite}
#welcome[open] #intro-skip::after{animation-delay:3s;border-color:#8a6649}
@keyframes experience-invite{0%{opacity:0;transform:scale(1)}4%{opacity:.75;transform:scale(1)}25%,100%{opacity:0;transform:scale(1.045,1.4)}}
#welcome[open] .experience>button:hover::after{animation:none}
@media(prefers-reduced-motion:reduce){#welcome[open] .experience>button::after{animation:none}}

#welcome-title:focus{outline:none}

.featured-artifact{margin:24px 0}.featured-artifact button{display:block;width:100%;padding:16px;background:#e9e0cf;border-radius:5px}.featured-artifact img{display:block;width:100%;height:auto}

.scene-topic-links button{display:flex;gap:10px;align-items:center;width:100%;padding:12px 0;min-height:44px;text-align:left;background:transparent;color:var(--ink);border-bottom:1px solid #4b302425;font-size:14px}.scene-topic-links svg{flex-shrink:0}

.detail-copy .narration{margin:18px 0;padding:10px 0;border-block:1px solid #4b30242a}
.narration-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.narration-heading h3{font-size:13px;margin:0;gap:6px}.narration-heading h3 svg{width:16px;height:16px}
.autoplay-toggle{display:flex;align-items:center;gap:8px;min-height:32px;padding:4px 0 4px 6px;background:transparent;color:#71513b;font-size:11px;white-space:nowrap}
.toggle-track{display:block;width:30px;height:18px;border-radius:12px;background:#bba58a;position:relative;flex:none}.toggle-track:after{content:"";position:absolute;left:3px;top:3px;width:12px;height:12px;border-radius:50%;background:#fffaf0;transition:transform .15s}
.autoplay-toggle[aria-checked=true] .toggle-track{background:#4b3024}.autoplay-toggle[aria-checked=true] .toggle-track:after{transform:translateX(12px)}
.narration .audio-player{padding:3px 6px;gap:8px;border:0;border-radius:6px;background:#e4e0cf}
.narration .audio-play{width:36px;height:36px;flex-basis:36px}.narration .audio-play svg{width:18px;height:18px}
.narration .audio-track{display:flex;align-items:center;gap:8px}.narration .audio-time{font-size:10px;white-space:nowrap;font-weight:500;order:2}.narration .audio-seek{flex:1;min-width:30px;height:30px}.narration .audio-mute{font-size:10px;min-height:40px;padding:4px}
.narration .transcript{margin-top:4px}.narration .transcript summary{font-size:11px;padding:6px 0;min-height:28px}
@media(prefers-reduced-motion:reduce){.toggle-track:after{transition:none}}
@media(max-width:360px){.narration .audio-track{display:block}.narration .audio-seek{height:20px}.narration .audio-time{font-size:10px}.autoplay-toggle{gap:5px}}

/* The three strokes brighten in sequence toward the destination. */
.spot[data-target]{background:transparent;border:0;box-shadow:none}
.spot[data-target]>svg{width:30px;height:30px;color:#ffe4a5;stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round}
.spot.ground-spot[data-target]>svg{transform:rotate(180deg)}
.spot[data-target]>svg>path:nth-child(1){opacity:.45}
.spot[data-target]>svg>path:nth-child(2){opacity:.72}
.spot[data-target]:has(.flycam){background:#493423eb;border:1.5px solid #ffe4a5;border-radius:50%;box-shadow:0 2px 5px #20140c45}
.spot[data-target]>svg:has(.flycam){width:36px;height:36px;stroke-width:1.6;filter:drop-shadow(0 1px 2px #39291e)}
.flycam rect{fill:currentColor}
@keyframes flycam-hover{from{transform:translateY(1px) rotate(-3deg)}to{transform:translateY(-1.5px) rotate(3deg)}}
@media(prefers-reduced-motion:no-preference){
  .spot:not([hidden]) .flycam{transform-origin:12px 12px;animation:flycam-hover 1.8s ease-in-out infinite alternate}
}
@keyframes travel-chevron{
  0%,60%,100%{opacity:.78;transform:translateY(1px)}
  30%{opacity:1;transform:translateY(-1px)}
}
@media(prefers-reduced-motion:no-preference){
  .spot[data-target]:not([hidden])>svg>path{animation:travel-chevron 1.4s ease-in-out infinite}
  .spot[data-target]>svg>path:nth-child(2){animation-delay:.15s}
  .spot[data-target]>svg>path:nth-child(3){animation-delay:.3s}
}

#ground-access{width:100%;justify-content:center;margin-bottom:12px;box-sizing:border-box}
/* Long Vietnamese headings keep their accents and complete lines visible. */
#detail-title{line-height:1.35;overflow-wrap:break-word;padding-block:2px 4px}

/* Touch layouts keep the panorama central, with secondary tools on demand. */
#scene-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;padding:0;text-align:left;background:transparent}
#scene-toggle>span{display:none}
#view-options{display:none}
@media(pointer:coarse){
 button:active{filter:brightness(.9)}
 #scene-stories button,.filters button,.library-tabs button,.autoplay-toggle,.transcript summary,.viewer-controls button,#back-library{min-height:44px}
 .narration .audio-play{width:44px;height:44px;flex-basis:44px}
 .narration .audio-seek{height:44px}.narration .audio-mute{min-height:44px;font-size:12px}
 .search-field input,.category-select select{min-height:44px;font-size:16px}
 #scene-stories button{font-size:14px}
}
@media(max-width:1024px){
 #tour{min-height:0}
 header{padding:max(10px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) 0;}
 .header-actions .header-link{min-width:44px;font-size:13px}
 .header-actions #media-preference{font-size:12px}
 .scene-heading{left:max(12px,env(safe-area-inset-left));top:calc(64px + env(safe-area-inset-top));max-width:min(360px,calc(100% - 24px));padding:4px 12px;pointer-events:auto}
 .scene-heading>span{display:none}
 #scene-toggle{min-height:48px;pointer-events:auto}
 #scene-toggle h2{font-size:17px;margin:0;line-height:1.4}
 #scene-toggle>span{display:flex;flex:none;transition:transform .2s}
 #scene-toggle[aria-expanded=true]>span{transform:rotate(90deg)}
 #scene-toggle[aria-expanded=false]+#scene-options{display:none}
 #scene-options{padding-bottom:8px;max-height:min(42dvh,320px);overflow:auto;overscroll-behavior:contain}
 #scene-stories{max-height:none;overflow:visible}
 #scene-stories button{min-height:44px;font-size:14px;padding:10px 0;margin:0}
 #ground-access{min-height:48px;margin:6px 0 12px}
 footer{padding:0 max(12px,env(safe-area-inset-right)) max(10px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left))}
 footer .hint{display:none}
 .next{margin-bottom:8px}.next>span{display:none}
 #connections{max-width:100%;margin-top:0;padding:4px 0;gap:8px;overscroll-behavior-x:contain;touch-action:pan-x;scrollbar-width:none}
 #connections button{min-height:44px;font-size:13px;white-space:nowrap}
 .toolbar{position:relative;gap:8px}
 .toolbar #home{display:grid}.toolbar #share{display:grid}
 .toolbar .icon{width:48px;min-width:44px;min-height:48px}
 #browse{padding:0 12px;font-size:14px;gap:8px}
 #view-options{display:flex;align-items:center;gap:8px;min-height:48px;padding:0 14px;border-radius:9px;margin-left:auto;font-size:14px}
 .view-actions{position:absolute;right:0;bottom:60px;margin:0;background:var(--paper);padding:6px;gap:6px;border-radius:12px;box-shadow:0 8px 24px #0004}
 #view-options[aria-expanded=false]+.view-actions{display:none}
 .toolbar .tools #fullscreen{display:none}
 #panel{inset:max(64px,env(safe-area-inset-top)) 12px 76px auto;width:min(420px,calc(100% - 24px));height:auto;max-height:none}
 #detail{inset:max(12px,env(safe-area-inset-top)) 12px max(12px,env(safe-area-inset-bottom)) auto;width:min(480px,calc(100% - 24px))}
 #detail-scroll,#scene-list,#story-list{overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
 .detail-copy{padding:20px}.body-paragraph{font-size:16px;line-height:1.7}
 .detail-bar{flex-shrink:0}#back-library{min-height:44px}
 #detail-title{font-size:26px}.video-figure{margin-inline:-20px}
 body.detail-open .scene-heading,body.panel-open .scene-heading{visibility:hidden}
 body.detail-open footer{visibility:hidden}
 #welcome{max-height:calc(100dvh - 24px);overflow:auto;overscroll-behavior:contain}
 .viewer-controls button{min-height:44px}.image-viewport{overscroll-behavior:contain}
 #guide-controls{padding:0;gap:4px;flex-direction:column;align-items:stretch}
 #guide-controls button{min-height:44px;font-size:13px}
 #guide-status{font-size:12px;white-space:normal}
 body:has(#guide-controls:not([hidden])) .view-actions,body:has(#guide-controls:not([hidden])) #view-options{display:none}
 body:has(#guide-controls:not([hidden])) #detail{bottom:120px}
 body:has(#guide-controls:not([hidden])) footer{visibility:visible;bottom:0}
}
@media(max-width:600px){
 #panel{left:8px;right:8px;width:auto;top: max(64px,env(safe-area-inset-top));bottom:76px}
 #detail{left:0;right:0;top:env(safe-area-inset-top);bottom:0;width:auto;border-radius:0;padding-bottom:env(safe-area-inset-bottom)}
 .detail-copy{padding:20px}.detail-summary{font-size:17px;line-height:1.6}
 .gallery-grid{grid-template-columns:1fr}.gallery-grid img{height:auto;max-height:320px;object-fit:contain}
 .narration .audio-track{display:flex;flex-direction:column;gap:0;align-items:stretch}.narration .audio-time{order:2;text-align:center;font-size:11px}
 .narration .audio-seek{width:100%;min-width:0}
 #welcome{padding:20px 16px 12px}.welcome-heading{margin-bottom:16px}.welcome-heading h2{font-size:23px!important}
 .experience{padding:16px}.experience-icon{display:none}.experience h3{font-size:20px;margin-bottom:8px}.experience-note{margin-bottom:12px}
 .experience-options{gap:12px}.experience p{font-size:14px!important}.experience>button{font-size:14px}
 .toolbar #browse{font-size:13px;padding-inline:10px}.navigation-tools #browse{padding-left:12px}
 body:has(#guide-controls:not([hidden])) #home{display:none}
}
@media(max-height:500px) and (max-width:1024px){
 .scene-heading{top:max(10px,env(safe-area-inset-top));max-width:calc(100% - 320px)}
 #scene-toggle h2{font-size:15px}#scene-options{max-height:calc(100dvh - 170px)}
 .next{max-width:65%}#connections button{font-size:12px}
 #panel{top:8px;bottom:8px;width:min(420px,70vw);z-index:18}
 #detail{top:0;bottom:0;width:min(480px,76vw);left:auto;right:0}
 #welcome{padding:16px}.experience-options{grid-template-columns:1fr 1fr}.experience-icon{display:none}.welcome-heading{margin-bottom:12px}.welcome-heading h2{font-size:22px!important}
 .welcome-footnote{margin-top:12px!important}.experience{padding:14px}
 body:has(#guide-controls:not([hidden])) #detail{bottom:0}
 body.detail-open:has(#guide-controls:not([hidden])) footer{visibility:hidden}
}

.model-viewer{margin:24px 0}
.model-viewer h3{font-size:18px;line-height:1.4;margin:0 0 12px}
.model-viewer p{font-size:13px;line-height:1.6;margin:12px 0;color:#71513b}
.model-viewer .model-credit{font-size:12px}
.model-viewer a{color:var(--ink);text-underline-offset:3px}
.model-stage{height:390px;position:relative;display:grid;place-items:center;background:#e9e0cf;border-radius:8px;overflow:hidden}
.model-stage canvas{width:100%;height:100%;touch-action:none}
.model-start{background:var(--ink);color:var(--paper);min-height:48px;padding:12px 18px;border-radius:8px;font-size:15px}
.model-start:disabled{opacity:.6}
.model-tools{display:flex;gap:8px;justify-content:center;margin-top:10px}
.model-tools button{display:flex;align-items:center;justify-content:center;gap:8px;background:#e9e0cf;color:var(--ink);min-width:44px;min-height:44px;padding:8px 12px;border-radius:6px}
@media(max-width:600px){.model-stage{height:340px;max-height:60dvh}}

/* Destination context stays visible on touch screens. */
.next>span{display:block;font-size:13px;font-weight:500;text-shadow:0 1px 4px #000;margin-bottom:8px}
#connections button{text-align:left;padding:6px 10px 6px 6px;gap:10px;max-width:250px;background:#35251cf2}
#connections button img{width:56px;height:44px;object-fit:cover;border-radius:4px;flex:none}
#connections button>span{white-space:normal;line-height:1.4}
#connections button>svg{width:16px;height:16px;margin-left:auto}
@media(min-width:601px) and (max-width:1024px){
 .scene-heading{top:max(10px,env(safe-area-inset-top));max-width:calc(100% - 340px);padding:0 12px;border:1px solid #ffffff24;border-radius:9px;background:#35251ce8}
 #scene-toggle{min-height:42px}
}
@media(max-width:600px){#connections button{max-width:220px}#connections button img{width:48px;height:40px}}
/* Center destination navigation; compact layouts retain text and direction. */
.next{width:fit-content;max-width:100%;margin-inline:auto}
.next>span{text-align:center}
#connections{max-width:100%;margin-top:0}
@media(max-width:1024px){
 #connections button img{display:none}
 #connections button{padding:10px 12px;min-height:44px;max-width:220px}
 .next{max-width:100%}
}

/* Anchor desktop destinations alongside the lower controls. */
@media(min-width:1025px){
 body:not(:has(#guide-controls:not([hidden]))) footer .next{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);max-width:calc(100% - 600px);margin:0}
 body:not(:has(#guide-controls:not([hidden]))) footer #connections{padding-bottom:0}
}
/* Consistent native form controls in the exploration drawer. */
.search-field{min-height:46px;flex-shrink:0;margin:16px 18px 12px;padding:0 12px;gap:10px;border:1px solid #a48c7166;border-radius:8px;background:#ffffff06;outline:none}
.search-field:focus-within{border-color:#dcb56b;outline:none}
.search-field input{height:44px;font-size:14px;outline:none;border-radius:0;box-shadow:none}
.search-field input:focus,.search-field input:focus-visible{outline:none;box-shadow:none}
.search-field:has(input:focus-visible){outline:2px solid #dcb56b;outline-offset:2px;border-color:transparent}
#story-filters{padding:0 18px 12px;overflow:visible}
.category-select{position:relative;display:block;font-size:12px;line-height:1.4}
.category-select>span{display:block;margin-bottom:6px}
.category-select select{appearance:none;-webkit-appearance:none;display:block;width:100%;min-width:0;min-height:44px;padding:10px 40px 10px 12px;font-size:14px;line-height:1.5;border:1px solid #a48c7166;border-radius:8px;background:#ffffff06;color:var(--paper)}
.category-select::after{content:'';position:absolute;right:16px;bottom:19px;width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);pointer-events:none}
.category-select select:focus-visible{outline:2px solid #dcb56b;outline-offset:2px;border-color:transparent}
.category-select option{background:var(--panel);color:var(--paper)}
@media(pointer:coarse){.search-field input,.category-select select{font-size:16px}}
/* One footer row owns alignment; destinations shrink instead of overflowing. */
#connections{overflow:visible;flex-wrap:wrap}
#connections button{min-width:0;flex:1 1 150px;max-width:none}
#connections button>span{overflow-wrap:anywhere}
@media(min-width:1025px){
 body:not(:has(#guide-controls:not([hidden]))) footer{display:grid;grid-template-columns:200px minmax(0,1fr) 260px;column-gap:24px;align-items:end}
 body:not(:has(#guide-controls:not([hidden]))) footer .toolbar{display:contents}
 body:not(:has(#guide-controls:not([hidden]))) footer .next{position:relative;inset:auto;transform:none;grid-column:2;grid-row:1;width:100%;max-width:850px;margin:0;justify-self:center}
 body:not(:has(#guide-controls:not([hidden]))) footer .navigation-tools{grid-column:1;grid-row:1;justify-self:start;align-self:end}
 body:not(:has(#guide-controls:not([hidden]))) footer .view-actions{grid-column:3;grid-row:1;justify-self:end;align-self:end}
 body:not(:has(#guide-controls:not([hidden]))) footer .hint{grid-column:1/-1;grid-row:2}
 body:not(:has(#guide-controls:not([hidden]))) footer #connections{flex-wrap:nowrap}
 body:not(:has(#guide-controls:not([hidden]))) footer #connections button{flex:1 1 0;min-height:58px}
 body:not(:has(#guide-controls:not([hidden]))) footer .toolbar button{min-height:58px}
}
@media(min-width:1025px) and (max-width:1450px){
 #connections button img{display:none}
 #connections button{padding:10px 12px}
}
@media(max-width:1024px){
 .next{width:100%}
 #connections{justify-content:center}
 #connections button{flex:0 1 auto;max-width:100%}
}
#connections .destination-pin{display:none;flex:none;line-height:0}
#connections .destination-pin svg{width:18px;height:18px}
@media(max-width:1450px){
 #connections .destination-pin{display:block}
 #connections{justify-content:center;align-items:stretch}
 #connections button{height:48px;min-height:48px;padding:6px 12px;gap:8px;flex:0 1 auto}
 body:not(:has(#guide-controls:not([hidden]))) footer #connections button{flex:0 1 auto;min-height:48px}
 body:not(:has(#guide-controls:not([hidden]))) footer .toolbar button{min-height:48px;height:48px}
 body:not(:has(#guide-controls:not([hidden]))) footer .next{width:fit-content;max-width:100%}
}
.category-select:has(.ts-wrapper)::after{display:none}
.category-select .ts-wrapper{width:100%}
.category-select .ts-control{min-height:46px;padding:12px 38px 12px 12px;border:1px solid #a48c7166;border-radius:8px;background:#ffffff06!important;color:var(--paper);font:inherit;font-size:14px;box-shadow:none;cursor:pointer}
.category-select .ts-wrapper.single .ts-control::after{border-color:var(--muted) transparent transparent;right:15px}
.category-select .ts-wrapper.focus .ts-control{border-color:var(--gold);box-shadow:none}
#panel .ts-dropdown{z-index:25;background:#463225;color:var(--paper);border:1px solid #a48c7166;border-radius:10px;padding:6px;box-shadow:0 12px 28px #0005;margin-top:6px;font-size:14px}
#panel .ts-dropdown-content{max-height:min(340px,42dvh);scrollbar-width:thin;scrollbar-color:#a38a70 transparent}
#panel .ts-dropdown .option{min-height:40px;display:flex;align-items:center;padding:10px 34px 10px 12px;border-radius:6px;position:relative;line-height:1.4}
#panel .ts-dropdown .active{background:#ffffff12;color:var(--paper)}
#panel .ts-dropdown .selected{background:#e7d6af22;color:#f4d99f}
#panel .ts-dropdown .selected::after{content:'';position:absolute;right:15px;width:5px;height:10px;border:solid currentColor;border-width:0 2px 2px 0;transform:rotate(45deg)}
@media(pointer:coarse){.category-select .ts-control,#panel .ts-dropdown{font-size:16px}#panel .ts-dropdown .option{min-height:44px}}
.category-select .ts-wrapper::after{content:'';position:absolute;right:16px;top:17px;width:7px;height:7px;border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);transform:rotate(45deg);pointer-events:none}
.category-select .ts-wrapper.dropdown-active::after{transform:rotate(225deg);top:21px}
.category-select .ts-control::after{display:none!important}
.category-select .ts-dropdown{width:100%!important;left:0!important}

/* On phones the scene card shares the top action row; destinations open on demand. */
#next-toggle{display:none}
@media(max-width:600px){
 .scene-heading{left:max(12px,env(safe-area-inset-left));top:max(10px,env(safe-area-inset-top));width:auto;max-width:calc(100% - 192px);padding:0 10px;border:1px solid #ffffff24;background:#35251ce8;border-radius:9px}
 #scene-toggle{min-height:44px;gap:4px}
 #scene-toggle h2{font-size:14px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 #scene-toggle>span{width:17px}
 footer .next{width:auto;max-width:none;margin:0 0 8px;display:flex;justify-content:center}
 footer .next>span{display:none}
 #next-toggle{display:flex;align-items:center;gap:7px;background:#35251cf2;color:#fffaf0;border:1px solid #f2dfbd9e;border-radius:9px;padding:8px 12px;min-height:44px;font-size:13px;pointer-events:auto}
 #next-toggle svg{width:17px;height:17px}
 #next-count{display:grid;place-items:center;min-width:21px;height:21px;border-radius:11px;background:#e7d6af;color:#4b3024;font-size:11px;font-weight:700}
 #connections{display:none;position:absolute;bottom:calc(100% - 5px);left:12px;right:12px;width:auto;max-height:36dvh;overflow-y:auto;overscroll-behavior:contain;justify-content:stretch;gap:6px;background:#35251cf5;border:1px solid #ffffff30;border-radius:12px;padding:8px;box-shadow:0 12px 30px #0006}
 #next-toggle[aria-expanded=true]+#connections{display:grid;grid-template-columns:1fr 1fr}
 #connections button,body:not(:has(#guide-controls:not([hidden]))) footer #connections button{width:100%;height:auto;min-height:44px;max-width:none;white-space:normal;padding:8px;font-size:12px}
 body.panel-open .next,body.detail-open .next{display:none}
}

.home-label{display:none}
@media(max-width:600px){
  /* Scene and playback share an app bar above the unobstructed panorama. */
  header{inset:0 0 auto;padding:env(safe-area-inset-top) max(8px,env(safe-area-inset-right)) 0 0;height:calc(60px + env(safe-area-inset-top));align-items:center;background:#30251ef5}
  .header-actions{gap:0}
  .header-actions .header-link{width:44px;padding:0;border:0;background:transparent;justify-content:center}
  .header-actions .header-link::after,.header-actions #media-preference-label{display:none}
  .scene-heading{top:calc(7px + env(safe-area-inset-top));left:max(12px,env(safe-area-inset-left));width:calc(100% - 120px);max-width:none;background:transparent;border:0;padding:0}
  #scene-toggle{justify-content:flex-start;gap:6px}
  #scene-toggle h2{font-size:17px}
  #scene-options{background:#35291f;border-radius:0 0 14px 14px;padding:8px 14px 12px;width:min(84vw,360px);max-height:55dvh}
  footer{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));align-items:center;padding:3px max(6px,env(safe-area-inset-right)) max(3px,env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left));background:#faf3e4;color:#402e21;border-top:1px solid #9b876b;gap:0}
  footer .next,footer .toolbar,footer .navigation-tools{display:contents}
  footer .home-label{display:block}
  footer #home,footer #browse,footer #next-toggle,footer #view-options{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;margin:0;padding:3px;width:100%;height:56px;min-height:52px;border:0;border-radius:8px;background:transparent;color:#493627;font-size:11px;font-weight:600;line-height:1.25;grid-row:1}
  footer #home{grid-column:1}footer #next-toggle{grid-column:2}footer #browse{grid-column:3}footer #view-options{grid-column:4}
  footer button[aria-expanded=true]:is(#next-toggle,#view-options,#browse){background:#e8dac4}
  footer .navigation-tools #browse,footer .navigation-tools #home{border-radius:8px}
  footer .navigation-tools #browse::before,footer #next-count{display:none}
  footer #home svg,footer #browse svg,footer #next-toggle svg,footer #view-options svg{display:block;width:21px;height:21px}
  footer #connections{position:absolute;bottom:100%;left:0;right:0;border-radius:18px 18px 0 0;padding:14px 12px;gap:8px;max-height:51dvh;touch-action:pan-y;background:#33271f}
  footer #connections::before{content:"Chọn cảnh để đi tới từ đây";grid-column:1/-1;font-size:16px;color:#fff5e3;font-weight:600;padding:0 2px 4px}
  footer #connections button img{display:block;width:42px;height:42px}
  footer #connections .destination-pin{display:none}
  footer .view-actions{bottom:100%;right:8px}
  #panel{inset:env(safe-area-inset-top) 0 calc(62px + env(safe-area-inset-bottom));width:100%;border-radius:0;border:0}
  body.panel-open footer .next{display:contents}
  body.panel-open footer{visibility:visible}
  body:has(#guide-controls:not([hidden])) footer{display:flex;justify-content:center}
  body:has(#guide-controls:not([hidden])) footer .next,body:has(#guide-controls:not([hidden])) footer .navigation-tools{display:none}
  body:has(#guide-controls:not([hidden])) #guide-controls{width:100%;max-width:none;color:#432e20}
  #welcome{width:100%;max-width:none;margin:auto 0 0;border-radius:20px 20px 0 0;padding-bottom:max(16px,env(safe-area-inset-bottom))}
}
@media(max-width:600px){
  footer #connections button{color:#fff5e3;background:#47372b;border-color:#806c58;text-align:left}
  footer #connections button img{display:block;flex-shrink:0}
}

@media(max-width:600px){
  footer .navigation-tools :is(#home,#browse),footer #next-toggle{
    font-family:inherit;font-size:13px;font-weight:600;line-height:1.25
  }
  footer #view-options{
    position:absolute;right:max(12px,env(safe-area-inset-right));bottom:calc(100% + 12px);
    width:auto;height:44px;min-height:44px;padding:0 12px;flex-direction:row;gap:6px;
    background:#35291ff2;color:#fff4df;border:1px solid #f4e2bf77;
    font-family:inherit;font-size:13px;line-height:1.25;pointer-events:auto
  }
  footer #view-options[aria-expanded=true]{background:#503e2f}
  footer #view-actions{right:12px;bottom:calc(100% + 64px)}
  body.panel-open #view-options,body.detail-open #view-options,
  footer:has(#next-toggle[aria-expanded=true]) #view-options{display:none}
  footer #connections button{font-family:inherit;font-size:14px;line-height:1.35}
}

/* Touch view controls sit directly on the panorama. */
@media(max-width:1024px){
  footer #view-options,footer .toolbar #share{display:none}
  footer #view-options[aria-expanded=false]+#view-actions,footer #view-actions{
    display:flex;position:absolute;right:max(12px,env(safe-area-inset-right));bottom:calc(100% + clamp(20px,5dvh,48px));
    padding:0;background:transparent;box-shadow:none;pointer-events:none
  }

  footer #view-actions .tools{
    flex-direction:column;gap:8px;background:transparent;overflow:visible
  }
  footer #view-actions .tools button{
    width:44px;height:44px;min-height:44px;border-radius:50%;padding:0;
    background:#fffaf0;color:#493627;border:1px solid #59432e38;
    box-shadow:0 2px 6px #20170e38;pointer-events:auto
  }
  footer #view-actions .tools svg{width:20px;height:20px}
  .panel-open footer #view-actions,.detail-open footer #view-actions,
  footer:has(#next-toggle[aria-expanded=true]) #view-actions,
  body:has(#guide-controls:not([hidden])) footer #view-actions{visibility:hidden;pointer-events:none}
}

/* Both drawers sit over the full-size panorama and share a right edge. */
body #panel,body #detail{
  inset:0 0 0 auto;height:auto;max-height:none;
  width:min(420px,84%);border-radius:16px 0 0 16px;
  padding-top:env(safe-area-inset-top);padding-right:env(safe-area-inset-right);
  padding-bottom:env(safe-area-inset-bottom);box-shadow:-4px 0 16px #35251c29
}
body #detail{width:min(480px,84%);background:var(--paper)}
body #detail-scroll{flex:1}
#panel .panel-head,#detail .detail-bar{touch-action:pan-y}
@media(max-width:600px){
  body.detail-open header{visibility:hidden}
}
@media(prefers-reduced-motion:no-preference){
  body #panel,body #detail{
    transition:transform .28s cubic-bezier(.2,.75,.2,1),display .28s allow-discrete;
    transform:translateX(0)
  }
  body #panel[hidden],body #detail[hidden]{transform:translateX(105%);pointer-events:none}
  @starting-style{
    body #panel:not([hidden]),body #detail:not([hidden]){transform:translateX(105%)}
  }
}

/* Dark edges follow the chevrons so pale stone stays visible between strokes. */
.spot[data-target]:not(:has(.flycam)){width:54px;height:54px}
.spot[data-target]:not(:has(.flycam))>svg{
  width:48px;height:48px;color:#ffdd85;stroke-width:3.2;
  filter:drop-shadow(1px 0 0 #3a2518) drop-shadow(-1px 0 0 #3a2518) drop-shadow(0 1px 1px #3a2518)
}

#scene-info-count{display:none}
@media(max-width:600px){
  header{transition:opacity .18s ease}
  body.panel-open header,body.detail-open header{opacity:0;visibility:hidden}
  .scene-heading{top:env(safe-area-inset-top)}
  #scene-toggle{display:grid;grid-template-columns:minmax(0,max-content) 16px;grid-template-rows:auto auto;align-content:center;align-items:center;justify-content:start;gap:2px 7px;height:60px}
  #scene-toggle h2{grid-column:1;grid-row:1}
  #scene-info-count{display:block;grid-column:1;grid-row:2;font-size:12px;line-height:16px;color:#f0d8af}
  #scene-toggle>span{grid-column:2;grid-row:1;display:grid;place-items:center;width:16px;height:16px;align-self:center;transform:rotate(90deg)}
  #scene-toggle>span svg{display:block;width:16px;height:16px}
  #scene-toggle[aria-expanded=true]>span{transform:rotate(-90deg)}
  .header-actions{height:60px;align-items:center;gap:4px}
  .header-actions .header-link{display:grid;place-items:center;height:44px;width:44px;margin:0}
  .header-actions #about-tour .about-label{display:none}
  .header-actions .header-link>[data-icon]{display:grid;place-items:center}
  .header-actions .header-link svg{display:block;width:20px;height:20px}
}
@media(prefers-reduced-motion:reduce){header{transition:none}}

#guide-progress,#guide-scene{display:block}
@media(max-width:600px){
  body:has(#guide-controls:not([hidden])) footer{
    height:calc(74px + env(safe-area-inset-bottom));padding:8px 12px calc(8px + env(safe-area-inset-bottom));
    background:#fcf6eb;border-top:1px solid #d8cbb5
  }
  body:has(#guide-controls:not([hidden])) #detail{bottom:calc(74px + env(safe-area-inset-bottom))}
  body #guide-controls{display:flex;flex-direction:row;align-items:center;gap:6px}
  #guide-status{max-width:none;margin:0;display:block;text-shadow:none;text-align:left;line-height:1.3}
  #guide-progress{font-size:11px;font-weight:500;color:#655342}
  #guide-scene{margin-top:3px;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  #guide-controls>div{align-items:center;gap:2px}
  footer #guide-controls button{height:44px;padding:0 10px;font-size:13px;font-weight:600;border-radius:9px}
  footer #guide-controls #guide-toggle{background:#503727;color:#fff7e8}
  footer #guide-controls #guide-stop{background:transparent!important;color:#584638!important}
}

#guide-controls button{display:inline-flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}
#guide-controls button svg{width:16px;height:16px;fill:currentColor;stroke:none;flex:none}
#guide-controls .guide-play,#guide-controls[data-state="paused"] .guide-pause{display:none}
#guide-controls[data-state="paused"] .guide-play{display:inline}
#tour-map{flex:none;margin:0 14px 6px;padding:0 0 8px;border-bottom:1px solid #e6d7b633}
.map-bar,.map-tabs,#map-fold{display:flex;align-items:center}
.map-bar{justify-content:space-between;gap:4px}
#map-fold,.map-tabs button{background:transparent;color:var(--paper);min-height:36px;font-size:12px;padding:3px 6px}
#map-fold{gap:5px;font-weight:600}.fold-arrow{transition:transform .16s}#map-fold[aria-expanded=false] .fold-arrow{transform:rotate(180deg)}
.map-tabs{gap:0}.map-tabs button{border-radius:6px}.map-tabs [aria-pressed=true]{background:#f3e6ce;color:#493727}
#map-drawing{display:block;width:100%;height:clamp(102px,17dvh,156px);border-radius:8px;background:#f7f3e8;stroke:none}
#map-drawing .mark{cursor:pointer}.mark:focus circle{stroke-width:3}
#tour-map.collapsed #map-drawing,#tour-map.collapsed .map-tabs{display:none}
@media(max-width:600px){.scene-heading{width:calc(100% - 164px)}#tour-map{margin-inline:10px}.map-tabs button,#map-fold{min-height:42px}}


#map-base text{fill:#565346;stroke:none;text-anchor:middle;font:9px system-ui}
#map-pins .mark:hover circle:first-child,#map-pins .mark:focus circle:first-child{stroke:#26190f;stroke-width:2.5}
@media(max-height:500px) and (orientation:landscape){
  #map-drawing{height:80px}
  #panel{overflow:auto;overscroll-behavior:contain}
  #panel #scene-list,#panel #story-list{min-height:100px}
}


/* A compact map above the current scene information. */
.scene-sidebar{
 position:absolute;top:28px;left:32px;z-index:3;width:300px;
 display:flex;flex-direction:column;gap:10px;pointer-events:none;
 max-height:calc(100dvh - 150px)
}
.scene-sidebar .scene-heading{
 position:relative;inset:auto;width:100%;max-width:none;margin:0;
 padding:12px 14px;flex-shrink:0
}
#tour-map{
 position:relative;inset:auto;flex:none;width:100%;margin:0;padding:7px;
 border:0;border-radius:10px;background:#302118d9;
 color:var(--paper);pointer-events:auto
}
#tour-map .map-bar{gap:6px;margin-bottom:5px}
#tour-map #map-fold{
 min-height:32px;padding:4px 5px;gap:5px;font-size:12px
}
#map-fold svg{width:16px;height:16px}
#tour-map .map-tabs{
 padding:2px;gap:2px;border-radius:7px;background:#20170f66
}
#tour-map .map-tabs button{
 min-height:30px;padding:5px 9px;border-radius:5px;
 font-size:11px;line-height:1.2;color:#f3e6ce;
 background:transparent
}
#tour-map .map-tabs [aria-pressed=true]{
 color:#35251c;background:#ead9bde6
}
#tour-map #map-drawing{
 height:112px;border-radius:6px;background:#f7f3e8
}
#map-base{opacity:1}
#map-base text{fill:#211c15;font-weight:600}
#tour-map.collapsed{width:max-content}
#tour-map.collapsed .map-bar{margin:0}
body.choosing-experience .scene-sidebar{visibility:hidden}
@media(max-width:800px){
 .scene-sidebar{left:18px;top:20px;width:280px}
}
@media(max-width:600px){
 .scene-sidebar{left:12px;top:calc(68px + env(safe-area-inset-top));width:260px;max-width:calc(100vw - 24px);gap:8px}
 .scene-sidebar .scene-heading{padding:8px 12px}
 .scene-sidebar #scene-toggle{height:auto;min-height:42px}
 .scene-sidebar #scene-toggle h2{font-size:15px}
 #tour-map #map-drawing{height:100px}
 #tour-map #map-fold,#tour-map .map-tabs button{min-height:36px}
 body.panel-open .scene-sidebar,body.detail-open .scene-sidebar{visibility:hidden}
}
@media(max-height:500px) and (orientation:landscape){
 .scene-sidebar{top:12px;width:250px;max-height:calc(100dvh - 80px)}
 #tour-map #map-drawing{height:80px}
}


#persistent-audio{
 position:relative;flex:none;width:100%;padding:10px 12px;border-radius:10px;
 background:#302118d9;color:var(--paper);pointer-events:auto
}
.persistent-audio-head{display:flex;align-items:center;gap:8px;justify-content:space-between}
#persistent-audio-title{font-size:12px;line-height:1.4;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#stop-narration{display:grid;place-items:center;flex:none;width:32px;height:32px;background:transparent;color:var(--paper)}
#stop-narration svg{width:16px;height:16px}
#persistent-audio .narration{margin:0;padding:4px 0 0;border:0}
#persistent-audio .narration-heading,#persistent-audio .transcript,#persistent-audio .audio-mute{display:none}
#persistent-audio .audio-player{margin:0;padding:0;gap:10px;background:transparent;border:0}
#persistent-audio .audio-play{width:36px;height:36px;flex-basis:36px;background:var(--gold);color:var(--ink)}
#persistent-audio .audio-track{display:flex;flex-direction:column;align-items:stretch;gap:0}
#persistent-audio .audio-time{order:2;color:var(--muted);text-align:right;font-size:10px}
#persistent-audio .audio-seek{height:24px;accent-color:var(--gold)}
@media(max-width:600px){
 #stop-narration{width:44px;height:44px}
 #persistent-audio .audio-play{width:44px;height:44px;flex-basis:44px}
}

#drawer-dismiss{display:none}
@media(min-width:601px) and (max-width:1366px) and (pointer:coarse){
 body.panel-open #drawer-dismiss,body.detail-open #drawer-dismiss{
  display:block;position:absolute;inset:0;z-index:7;
  width:100%;height:100%;padding:0;border:0;border-radius:0;
  background:transparent;touch-action:manipulation
 }
}

.mobile-scene-action{display:none}
#gesture-instructions{display:flex;align-items:center;gap:16px;margin:18px 0 22px;padding:12px 16px;background:#eadfcf;border-radius:12px;color:var(--ink)}
#gesture-instructions strong{font-size:15px;font-weight:600}
#gesture-instructions p{margin:5px 0 0;font-size:13px;line-height:1.5;color:#67503e}
.gesture-demo{position:relative;display:block;flex:none;width:100px;height:62px;color:currentColor}
.gesture-demo svg{position:absolute;display:block;fill:none;stroke:currentColor;stroke-width:1.6}
.gesture-track{inset:3px 0;width:100px;height:56px;opacity:.4;stroke-dasharray:3 4}
.gesture-motion{top:0;left:20px;width:60px;height:56px}
.gesture-hand{display:none!important}
.touch-instructions .gesture-hand{display:block!important}
.touch-instructions .gesture-mouse{display:none!important}
#welcome[open] .gesture-motion,#rotation-hint:not([hidden]) .gesture-motion{animation:gesture-pan 2.8s ease-in-out infinite}
@keyframes gesture-pan{0%,100%{transform:translateX(-14px)}50%{transform:translateX(14px)}}
#rotation-hint{position:absolute;z-index:6;bottom:130px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:12px;width:max-content;max-width:calc(100% - 32px);padding:8px 16px;border-radius:12px;background:#302118ed;color:var(--paper);pointer-events:none}
#rotation-hint .gesture-demo{transform:scale(.7);width:78px;margin-left:-8px;margin-right:-12px}
#rotation-hint .gesture-copy{max-width:260px;font-size:13px;line-height:1.5}
@media(prefers-reduced-motion:reduce){
 #welcome[open] .gesture-motion,#rotation-hint:not([hidden]) .gesture-motion{animation:none;transform:none}
}
@media(max-width:600px){
 header{height:calc(60px + env(safe-area-inset-top))}
 .header-actions #about-tour{display:none}
 .header-actions #media-preference{width:44px;margin:0}
 .scene-sidebar{top:calc(72px + env(safe-area-inset-top));width:260px}
 .scene-sidebar .scene-heading{
  position:fixed;top:env(safe-area-inset-top);left:12px;
  width:calc(100vw - 76px);height:60px;padding:0;background:transparent;border:0
 }
 .scene-sidebar .scene-heading>span{display:none}
 .scene-sidebar #scene-toggle{height:60px;width:100%;padding:6px 0}
 .scene-sidebar #scene-toggle h2{font-size:16px;margin:0}
 .scene-sidebar #scene-options{position:absolute;top:60px;left:0;max-height:45dvh;overflow:auto}
 footer .toolbar .mobile-scene-action{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;grid-row:1;min-height:58px;height:58px;width:100%;padding:4px 2px;
  background:transparent;color:var(--ink);font-size:11px;font-weight:600;border-radius:8px
 }
 footer{grid-template-columns:repeat(5,minmax(0,1fr))}
 footer #home{grid-column:5}
 footer #view-options,footer #view-actions{display:none!important}
 footer #scene-listen{grid-column:1}
 footer #next-toggle{grid-column:2}
 footer #scene-documents{grid-column:3}
 footer #browse{grid-column:4}
 footer #scene-listen svg,footer #scene-documents svg{width:21px;height:21px}
 body:has(#guide-controls:not([hidden])) footer .mobile-scene-action{display:none}
 #gesture-instructions{gap:8px;padding:10px 12px;margin:12px 0}
 #gesture-instructions .gesture-demo{transform:scale(.8);width:84px;margin-left:-8px}
 #gesture-instructions strong{font-size:14px}
 #gesture-instructions p{font-size:12px}
 #rotation-hint{bottom:calc(84px + env(safe-area-inset-bottom));padding:6px 12px;gap:8px}
 #rotation-hint .gesture-copy{font-size:12px}
}


.narration-actions{display:flex;align-items:center}
.narration-actions #scene-listen{border-radius:9px 0 0 9px}
.narration-actions #media-preference{border-radius:0 9px 9px 0;border-left:0;font-size:11px;padding:0 10px}
#next-narration{display:block;width:100%;margin-top:6px;padding:8px 0 2px;border-top:1px solid var(--line);text-align:left;color:var(--gold);background:transparent;font-size:12px;line-height:1.4}
#next-narration[hidden]{display:none}
body:has(#guide-controls:not([hidden])) #scene-listen{display:none}
@media(max-width:600px){
 .header-actions #scene-listen span:last-child{display:none}
 .header-actions #media-preference{width:44px}
 .scene-sidebar .scene-heading{width:calc(100vw - 112px)}
 footer{grid-template-columns:repeat(4,minmax(0,1fr))}
 footer #home{grid-column:1}
}

/* Keep the panorama visible between the scene header and touch navigation. */
@media (min-width:601px) and (max-width:1024px), (min-width:1025px) and (max-width:1366px) and (pointer:coarse){
 header{padding:env(safe-area-inset-top) max(16px,env(safe-area-inset-right)) 0;height:calc(62px + env(safe-area-inset-top));align-items:center;background:#30251ef5}
 .scene-sidebar{left:max(16px,env(safe-area-inset-left));top:calc(74px + env(safe-area-inset-top));width:288px}
 .scene-sidebar .scene-heading{position:fixed;left:max(16px,env(safe-area-inset-left));top:env(safe-area-inset-top);width:min(44vw,410px);padding:0;border:0;background:transparent}
 .scene-sidebar .scene-heading>span{display:none}
 .scene-sidebar #scene-toggle{display:flex;align-items:center;gap:8px;height:62px}
 .scene-sidebar #scene-toggle h2{font-size:19px;margin:0}
 .scene-sidebar #scene-toggle>span{display:flex;transform:rotate(90deg)}
 .scene-sidebar #scene-toggle[aria-expanded=false]+#scene-options{display:none}
 .scene-sidebar #scene-options{padding:6px 14px;background:var(--panel);border-radius:0 0 10px 10px;max-height:48dvh;overflow:auto}
 #scene-stories{max-height:none}
 body:not(:has(#guide-controls:not([hidden]))) footer{display:flex;align-items:center;justify-content:center;gap:0;left:50%;right:auto;bottom:max(10px,env(safe-area-inset-bottom));transform:translateX(-50%);width:max-content;max-width:calc(100% - 32px);padding:4px 6px;border-radius:12px;background:var(--paper);color:var(--ink);pointer-events:auto}
 body:not(:has(#guide-controls:not([hidden]))) footer :is(.toolbar,.next,.navigation-tools){display:contents}
 footer .hint,footer .next>span,footer #next-count{display:none}
 footer #home{order:1}footer #next-toggle{order:2}footer #browse{order:3}footer #view-options{order:4}
 body:not(:has(#guide-controls:not([hidden]))) footer :is(#home,#next-toggle,#browse,#view-options){display:flex;align-items:center;justify-content:center;gap:7px;width:auto;padding:0 14px;margin:0;height:46px;border:0;background:transparent;color:var(--ink);font-size:14px}
 footer .home-label{display:inline}footer #browse::before{display:none}
 footer :is(#home,#next-toggle,#browse,#view-options) svg{width:18px;height:18px}
 footer #connections,footer #view-options[aria-expanded=false]+#view-actions{display:none}
 footer #next-toggle[aria-expanded=true]+#connections{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));position:absolute;bottom:calc(100% + 8px);left:0;right:0;margin:0;padding:10px;max-height:48dvh;overflow:auto;border-radius:10px;background:var(--panel);color:var(--paper)}
 footer #connections button{max-width:none;white-space:normal;text-align:left}
 footer #view-options[aria-expanded=true]+#view-actions{display:flex;position:absolute;bottom:calc(100% + 8px);right:0;background:var(--paper);padding:6px;border-radius:8px;pointer-events:auto}
 footer #view-actions .tools{flex-direction:row}
 body:not(:has(#guide-controls:not([hidden]))) footer #view-actions .tools button{flex:0 0 44px;width:44px;height:44px;min-height:44px;padding:0;border-radius:50%;display:grid;place-items:center}
 @media(max-width:800px){
  .header-actions #about-tour{display:grid;place-items:center;padding:0;width:44px;height:44px}
  .header-actions #about-tour .about-label{display:none}
  .header-actions #about-tour [data-icon]{display:grid;place-items:center}
 }
 body:is(.detail-open,.panel-open) .scene-sidebar{visibility:hidden}
}
@media(max-width:1366px) and (pointer:coarse){
 #tour-map #map-fold,#tour-map .map-tabs button{min-height:44px}
 #tour-map.collapsed{padding:0 8px}
 #stop-narration{min-width:44px;min-height:44px}
 #next-narration{min-height:44px}
}
@media(max-width:600px){
 .scene-sidebar #scene-options{z-index:2}
 .scene-sidebar{left:max(12px,env(safe-area-inset-left))}
 #tour-map{padding-inline:8px}
 #tour-map #map-fold{padding-inline-start:12px}
 #persistent-audio{position:fixed;left:max(12px,env(safe-area-inset-left));right:max(12px,env(safe-area-inset-right));bottom:calc(68px + env(safe-area-inset-bottom));width:auto;background:#30251ef5;padding:4px 12px}
 body:has(#next-toggle[aria-expanded=true]) #persistent-audio{visibility:hidden}
 body:not(:has(#guide-controls:not([hidden]))) footer :is(#home,#next-toggle,#scene-documents,#browse){
  display:grid;grid-template-rows:22px 16px;align-content:center;justify-items:center;justify-content:stretch;
  row-gap:4px;width:100%;height:56px;min-height:56px;margin:0;padding:0 2px;
  font-family:inherit;font-size:12px;line-height:16px;font-weight:600;white-space:nowrap;color:var(--ink)
 }
 footer :is(#home,#next-toggle,#scene-documents,#browse)>[data-icon]{display:grid;place-items:center;width:22px;height:22px}
 footer :is(#home,#next-toggle,#scene-documents,#browse)>[data-icon] svg{display:block;width:20px;height:20px}
 body.panel-open #drawer-dismiss,body.detail-open #drawer-dismiss{display:block;position:absolute;inset:0;z-index:7;width:100%;height:100%;background:#21170f45}
 body:not(:has(#guide-controls:not([hidden]))):is(.panel-open,.detail-open) footer{visibility:hidden}
}
#rotation-hint{top:50%;left:50%;right:auto;bottom:auto;transform:translate(-50%,-50%);max-width:min(360px,calc(100% - 32px));padding:10px 16px;background:#30251ef5}
@media(max-width:600px){
 .header-actions .narration-actions{border:1px solid #ffffff35;border-radius:9px}
 .header-actions #scene-listen{display:flex;gap:6px;width:auto;padding:0 8px}
 .header-actions #scene-listen span:last-child{display:inline;font-size:12px}
 .header-actions #media-preference{border-left:1px solid #ffffff24}
 .scene-sidebar .scene-heading{width:calc(100vw - 174px)}
}

@media(max-width:600px){
 #persistent-audio:not([hidden]){
  display:grid;grid-template-columns:44px minmax(0,1fr) 44px;
  grid-template-rows:auto 26px;align-items:center;column-gap:8px;
  padding:2px 6px 4px
 }
 #persistent-audio :is(.persistent-audio-head,#persistent-audio-content,.narration,.audio-player,.audio-track){display:contents}
 #persistent-audio .audio-play{grid-area:1/1;border:7px solid transparent;padding:0;background-clip:padding-box}
 #persistent-audio .audio-play svg{width:14px;height:14px}
 #persistent-audio-title{grid-area:1/2;align-self:center}
 #persistent-audio:has(#next-narration:not([hidden])) #persistent-audio-title{align-self:start;padding-top:4px}
 #persistent-audio #next-narration:not([hidden]){
  grid-area:1/2;align-self:end;min-height:26px;margin:0;padding:3px 0;border:0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:11px
 }
 #stop-narration{grid-area:1/3}
 #persistent-audio .audio-seek{grid-area:2/1/3/3;height:26px;width:100%}
 #persistent-audio .audio-time{grid-area:2/3;justify-self:end;white-space:nowrap}
 #persistent-audio .media-error:not([hidden]){grid-column:1/-1}
}

#skip-narration:not([hidden]){display:grid;place-items:center;flex:none;width:44px;height:44px;padding:0;background:transparent;color:var(--gold)}
@media(max-width:600px){
 #persistent-audio:has(#skip-narration:not([hidden])){grid-template-columns:44px 44px minmax(0,1fr) 44px}
 #skip-narration{grid-area:1/2}
 #persistent-audio:has(#skip-narration:not([hidden])) :is(#persistent-audio-title,#next-narration){grid-column:3}
 #persistent-audio #stop-narration{grid-column:-2}
 #persistent-audio .audio-time{grid-column:-2}
 #persistent-audio .audio-seek{grid-column:1/-2}
}

/* Tour một nhóm cảnh: ẩn bộ lọc nhóm */
#scene-filters{display:none!important}