/* Museum collection: the model, its explanation, then the demonstration controls. */
:root {
  color-scheme:dark; --bg:#141c1c; --panel:#1b2523; --paper:#e8ece3;
  --muted:#9aa99f; --line:#35423d; --gold:#d8bc79; --soft:#b3c0b5;
  --mono:Consolas,"Cascadia Code",monospace; --sans:"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--paper);font-family:var(--sans)}
body{font-size:14px}
button,input,select{font:inherit}
button,a,select,input{outline-offset:4px}
button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,#stage:focus-visible{outline:2px solid var(--gold)}
button{border:1px solid var(--line);color:#d8e1d9;background:transparent;border-radius:4px;padding:9px 12px;cursor:pointer;font-size:12px;min-height:36px;transition:background .15s,color .15s}
button:hover{background:#344039}
button[aria-pressed=true]{color:#f0d69a;border-color:#aa945e;background:#383b2b}
button:disabled{opacity:.42;cursor:default}
a{color:var(--gold);text-decoration:none}
a:hover{text-decoration:underline}
select{max-width:100%;background:#1e2b26;color:#d6e1d5;border:1px solid #3f5144;border-radius:3px;padding:8px;font-size:12px}
p,h1,h2,h3{margin:0}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
#app{max-width:1920px;margin:auto;padding:0 30px}
.site-header{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;font-size:10px;letter-spacing:1.4px;line-height:1.5;font-weight:600;min-width:0}
.brand-symbol{font:21px Georgia,serif;border:1px solid #a3b099;padding:3px 9px;color:#dbe4d8}
.brand-divider{padding:0 7px;color:#5d7364}
.brand-collection{color:var(--muted);font-weight:400}
.utilities{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:15px;font-size:10px;min-width:0}
.collection-link,.other-exhibit-link{white-space:nowrap}
.other-exhibit-link{color:var(--muted)}
.text-button{padding:5px 0;border:0;font-size:10px;color:var(--muted)}
.text-button:hover{background:transparent;color:var(--paper)}
.locale-picker select{background:transparent;border-color:transparent;font-size:11px;padding:6px 3px}
.locale-picker option{background:var(--bg)}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 320px;border-bottom:1px solid var(--line);min-width:0}
.scene-wrap{height:clamp(520px,calc(100dvh - 125px),850px);min-width:0;display:flex;flex-direction:column;background:var(--bg)}
.scene-viewport{position:relative;min-height:0;flex:1;overflow:hidden;background:radial-gradient(ellipse at 50% 45%,#2c3934,#1a2422 58%,#141c1c)}
#stage{position:absolute;inset:0;outline-offset:-4px;touch-action:none}
#stage canvas{display:block;width:100%;height:100%;touch-action:none}
.exhibit-heading{position:absolute;top:28px;left:27px;right:20px;z-index:2;pointer-events:none}
.eyebrow{font-size:9px;letter-spacing:1.6px;color:var(--muted);font-weight:600;line-height:1.5;text-transform:uppercase}
h1{font-family:"Arial Narrow","Segoe UI",sans-serif;font-stretch:condensed;font-size:clamp(38px,4vw,57px);line-height:1;letter-spacing:-2.8px;font-weight:700;margin:13px 0 12px}
h1 span{color:#b2c0ac;font-weight:300;letter-spacing:-1.6px}
.exhibit-subtitle{font-size:12px;color:#aebdab}
.scene-caption{position:absolute;bottom:21px;left:27px;right:28px;pointer-events:none;z-index:2;max-width:570px;text-shadow:0 1px 8px #10201d}
.scene-heading-line{display:flex;align-items:center;gap:8px}
.live-mark{height:5px;width:5px;background:var(--gold);border-radius:50%;flex-shrink:0}
.scene-caption h2{font-size:9px;font-weight:500;letter-spacing:1.1px;text-transform:uppercase;line-height:1.5}
.scene-caption p{color:#aebdae;font-size:11px;line-height:1.5;margin:6px 0 0 13px}
.reconstruction-note{position:absolute;top:29px;right:25px;font-size:8px;letter-spacing:1px;color:var(--gold);text-transform:uppercase;pointer-events:none}
.reconstruction-note>span:first-child{margin-right:4px}
#loading{position:absolute;inset:46% 20px auto;text-align:center;z-index:4;font-size:12px;color:var(--gold);letter-spacing:1px;pointer-events:none}
.mode-nav{display:flex;flex-wrap:wrap;gap:5px;padding:12px 25px 0}
.mode-nav button{font-size:11px;display:flex;align-items:center;gap:8px;min-height:36px;padding:7px 12px}
.mode-number{font:9px var(--mono);color:#78907e}
.mode-nav button[aria-pressed=true] .mode-number{color:var(--gold)}
.scene-bottom{padding:8px 25px 14px;display:flex;flex-wrap:wrap;align-items:center;gap:7px;min-width:0}
.camera-tools,.detail-tools{display:flex;flex-wrap:wrap;gap:4px;min-width:0}
.camera-tools button,.detail-tools button{font-size:10px;padding:5px 9px;min-height:30px;border-color:transparent;color:#a9b9ac}
.camera-tools button:hover,.detail-tools button:hover{border-color:var(--line)}
.camera-tools button[aria-pressed=true],.detail-tools button[aria-pressed=true]{border-color:#7d704e;color:var(--gold)}
.camera-tools .reset-button{border-left:1px solid var(--line);border-radius:0;margin-left:4px}
.detail-tools{display:none;width:100%}
#app[data-mode=cutaway] .detail-tools{display:flex}
.context-panel{min-width:0;max-height:clamp(520px,calc(100dvh - 125px),850px);overflow-y:auto;border-left:1px solid var(--line);padding:29px 24px 18px;background:#1b25235c;scrollbar-width:thin;scrollbar-color:#556454 transparent;display:flex;flex-direction:column}
.part-info{padding-bottom:20px}
.part-info>.eyebrow{display:block;margin-bottom:12px}
.part-info h3{font-size:27px;line-height:1.17;font-weight:450;letter-spacing:-.6px;margin:12px 0}
.part-info>p:not(.evidence-reference){font-size:12px;color:var(--soft);line-height:1.65}
.evidence-label{display:inline-block;background:#3b3b2a;color:#d7c48d;border-left:2px solid #ad955d;padding:5px 7px;font-size:9px;line-height:1.4;margin-top:12px}
.evidence-reference{font-size:10px;line-height:1.6;color:#87998d;margin-top:12px}
.photo-link{color:var(--gold);display:block;text-align:left;width:100%;border:0;border-top:1px solid var(--line);border-radius:0;padding:9px 0;font-size:11px;line-height:1.5;margin-top:12px}
.photo-link:hover{background:transparent;text-decoration:underline}
.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:9px;min-height:20px}
.panel-count{font:10px var(--mono);color:#80927f}
.part-list{display:flex;flex-direction:column;gap:2px}
.part-list button{display:flex;align-items:center;gap:10px;min-height:30px;padding:5px 8px;border-color:transparent;text-align:left;font-size:11px;line-height:1.35;min-width:0}
.part-list button>span:nth-child(2){min-width:0;overflow-wrap:anywhere}
.part-index{font:9px var(--mono);color:#748d78;flex-shrink:0}
.part-arrow{margin-left:auto;visibility:hidden}
.part-list button[aria-pressed=true]{border-color:#7d704e}
.part-list button[aria-pressed=true] .part-index{color:var(--gold)}
.part-list button[aria-pressed=true] .part-arrow,.part-list button:hover .part-arrow{visibility:visible}
.dimension-line{display:grid;grid-template-columns:1fr 1fr;gap:16px;border-top:1px solid var(--line);padding-top:17px;margin-top:22px}
.dimension-line strong{font:23px var(--mono);color:#c3cebc;letter-spacing:-1px;display:block}
.dimension-line strong small{font-size:11px;letter-spacing:0;color:var(--muted)}
.dimension-line>div>span{display:block;color:var(--muted);font-size:9px;line-height:1.5;margin-top:5px}
.panorama-panel,#helm-panel{display:none}
#app[data-mode=panorama] .model-panel,#app[data-mode=panorama] .part-info,#app[data-mode=panorama] .dimension-line,#app[data-mode=panorama] [data-camera],#app[data-mode=panorama] .reconstruction-note{display:none}
#app[data-mode=panorama] .panorama-panel{display:block}
#app[data-mode=panorama] .exhibit-heading{display:none}
#app[data-mode=panorama] .scene-caption{padding:12px;background:#101a1acc;left:16px;bottom:16px;right:16px;max-width:470px}
#app[data-mode=panorama] .camera-tools .reset-button{margin:0;border:0}
.panel-intro{font-size:13px;line-height:1.65;color:var(--soft);margin:15px 0 20px}
.station-list{display:flex;flex-direction:column;gap:6px}
.station-list button{display:grid;grid-template-columns:18px minmax(0,1fr) 13px;gap:9px;align-items:center;min-height:72px;text-align:left;padding:10px 8px}
.station-number{font:10px var(--mono);color:#859d8d}
.station-list strong{font-size:13px;font-weight:500;display:block}
.station-list small{font-size:10px;color:var(--muted);line-height:1.5;display:block;margin-top:5px}
.pano-status{font-size:10px;line-height:1.6;color:var(--gold);margin:18px 0 7px}
.photo-note{font-size:11px;line-height:1.6;color:#87998d;border-top:1px solid var(--line);margin-top:21px;padding-top:16px}
#app[data-mode=helm] .scene-wrap,#app[data-mode=helm] .context-panel{height:clamp(400px,calc(100dvh - 380px),680px);max-height:clamp(400px,calc(100dvh - 380px),680px)}
#app[data-mode=helm] .exhibit-heading{top:20px}
#app[data-mode=helm] h1{font-size:40px;margin:9px 0}
#app[data-mode=helm] .exhibit-subtitle{display:none}
#app[data-mode=helm] .scene-caption{background:linear-gradient(90deg,#081e21bb,transparent);padding:10px;left:17px;bottom:12px}
#app[data-mode=helm] #helm-panel{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr) minmax(0,1.1fr);gap:30px;padding:20px 0 18px;border-bottom:1px solid var(--line)}
#helm-panel>div{min-width:0}
.helm-inputs,.mission-readout{border-left:1px solid var(--line);padding-left:30px}
.scenario-picker{display:flex;gap:14px;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted);margin:8px 0 12px}
.scenario-picker select{font-size:11px;max-width:68%;padding:7px}
.exercise-title{font-size:23px;line-height:1.2;letter-spacing:-.5px;font-weight:450;margin:10px 0 8px}
.sim-limit{font-size:10px;color:#91a18e;line-height:1.55}
.sim-target{display:block;font:11px var(--mono);color:var(--gold);line-height:1.6;margin-top:13px}
.evidence-dot{width:5px;height:5px;background:var(--gold);border-radius:50%}
.sim-controls{margin-top:1px}
.sim-controls label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;color:#c5d2c1}
.key-hint{font:9px var(--mono);color:#889e88;white-space:nowrap}
input[type=range]{accent-color:var(--gold);cursor:pointer}
.sim-controls input[type=range]{display:block;width:100%;height:21px;margin:2px 0 9px}
.instruments{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
.instruments>div{min-width:0;padding-left:15px;border-left:1px solid var(--line)}
.instruments>div:first-child{padding-left:0;border-left:0}
.instruments span{display:block;color:var(--muted);font-size:9px;text-transform:uppercase;letter-spacing:1px}
.instruments output{display:inline-block;font:27px var(--mono);color:var(--gold);margin:7px 5px 0 0;letter-spacing:-1px}
.instruments small{font-size:9px;color:var(--muted)}
.navigation-readout{display:flex;justify-content:space-between;gap:15px;font-size:10px;color:var(--muted);margin-top:10px}
.navigation-readout output{color:#b8c9b3;white-space:nowrap}
.phase-line{font-size:10px;line-height:1.5;color:#b4c3ac;margin-top:6px}
.navigation-warning{font-size:11px;line-height:1.5;padding:8px 10px;background:#72572b40;border-left:2px solid var(--gold);color:#f0ce91;margin-top:8px}
.progress-line{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:8px;margin-top:8px;color:var(--muted);font-size:10px}
.progress-line output{color:var(--gold);font-family:var(--mono)}
.sim-status{display:block;font-size:10px;line-height:1.5;color:var(--muted);margin-top:6px}
.sim-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px}
.sim-actions button{flex:1;padding:7px 10px;font-size:11px}
.action-button{background:var(--gold);color:#1a2521;border-color:var(--gold);font-weight:600}
.action-button:hover{background:#ead293;color:#1a2521}
.sim-result{margin-top:12px;border-top:1px solid var(--gold);padding-top:10px;color:var(--gold);font-size:12px;line-height:1.5}
.bottom-bar{min-height:48px;display:flex;align-items:center;gap:22px;font-size:9px;color:#87998a;line-height:1.6;padding:10px 0}
#help{flex:1}
#status{max-width:25%;text-align:right;color:#a5b59e}
.source-button{font-size:10px;border:0;padding:4px 0;color:var(--gold);min-height:30px;text-align:left}
.source-button:hover{background:transparent;text-decoration:underline}
dialog{background:#1c2722;color:#d8e1d4;border:1px solid #586b58;border-radius:7px;width:min(700px,92vw);max-height:88dvh;padding:28px 32px;line-height:1.65;scrollbar-width:thin}
dialog::backdrop{background:#08100eda;backdrop-filter:blur(7px)}
.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
dialog h2{font-size:32px;line-height:1.2;font-weight:400;margin:24px 0 18px}
.dialog-lead{font-size:14px;color:#b6c4b1}
.source-block{border-top:1px solid var(--line);padding-top:17px;margin-top:20px}
.source-block h3{font-size:14px;font-weight:500;color:var(--gold);margin-bottom:7px}
.source-block p{font-size:12px;color:#b6c4b1;line-height:1.65}
.source-footnote{font-size:10px;color:#9dad96;margin-top:24px}
@media(min-width:1600px){.workspace{grid-template-columns:minmax(0,1fr) 350px}.context-panel{padding:32px 29px}.part-info>p:not(.evidence-reference){font-size:13px}}
@media(max-width:1250px){
  #app{padding:0 20px}.site-header{gap:15px;flex-wrap:wrap;padding:12px 0}.brand{font-size:9px;letter-spacing:1px}.utilities{gap:12px}.brand-symbol{font-size:19px}
  .workspace{grid-template-columns:minmax(0,1fr) 285px}.context-panel{padding:24px 20px 18px}.reconstruction-note{top:auto;bottom:11px;right:18px;font-size:7px}.scene-caption{bottom:28px;left:20px;right:20px}
  .exhibit-heading{left:20px}.mode-nav{padding:10px 18px 0;gap:4px}.mode-nav button{padding:7px 9px;font-size:10px;gap:5px}.scene-bottom{padding:7px 18px 13px}.camera-tools button,.detail-tools button{font-size:9px;padding:5px 7px}
  #app[data-mode=helm] #helm-panel{gap:20px}.helm-inputs,.mission-readout{padding-left:20px}.exercise-title{font-size:21px}.instruments{gap:10px}.instruments>div{padding-left:10px}.instruments output{font-size:24px}.instruments small{display:block;margin-top:2px}
}
@media(max-width:800px){
  #app{padding:0 14px}.site-header{padding:12px 0;gap:12px}.brand{width:100%;font-size:9px}.brand-collection{letter-spacing:.5px}.brand-divider{padding:0 4px}.utilities{width:100%;justify-content:flex-start;gap:8px 14px}.locale-picker{margin-left:auto}.utilities .text-button{min-height:30px}
  .workspace{display:flex;flex-direction:column}.scene-wrap{height:560px;max-height:none;min-height:0}.scene-viewport{min-height:320px}.context-panel{height:auto;max-height:none;border-left:0;border-top:1px solid var(--line);padding:23px 14px 18px;overflow:visible}
  .part-info{max-width:600px}.part-info h3{font-size:25px}.part-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 8px}.part-list button{min-height:36px}.part-arrow{display:none}.dimension-line{max-width:400px}.exhibit-heading{top:22px;left:15px}.exhibit-heading .eyebrow{font-size:8px}h1{font-size:43px;margin:11px 0}.exhibit-subtitle{font-size:11px}
  .mode-nav{padding:10px 12px 0}.mode-nav button{flex:1;min-height:36px;white-space:normal;text-align:left;font-size:10px;line-height:1.4}.mode-number{display:none}.scene-bottom{padding:6px 12px 12px}.scene-caption{left:15px;right:15px;bottom:25px}.scene-caption p{font-size:10px}.scene-caption h2{font-size:8px}.camera-tools button,.detail-tools button{min-height:32px;font-size:9px;padding:5px 6px}.camera-tools .reset-button{margin-left:0}.detail-tools{gap:2px}.reconstruction-note{right:15px}
  .station-list{max-width:600px}.panorama-panel{max-width:600px}#app[data-mode=helm] .scene-wrap{height:500px;max-height:none}#app[data-mode=helm] .context-panel{height:auto;max-height:none}#app[data-mode=helm] .scene-viewport{min-height:300px}
  /* On narrow screens the exercise follows the scene, ahead of the long anatomy list. */
  #app[data-mode=helm]{display:flex;flex-direction:column}#app[data-mode=helm] .site-header{order:0}#app[data-mode=helm] .workspace{display:contents}#app[data-mode=helm] .scene-wrap{order:1}#app[data-mode=helm] #helm-panel{order:2;grid-template-columns:1fr 1fr;gap:20px;padding:20px 0}#app[data-mode=helm] .context-panel{order:3}#app[data-mode=helm] .bottom-bar{order:4}
  .mission-brief{grid-column:1/-1}.helm-inputs{border-left:0;padding-left:0}.mission-readout{padding-left:20px}.scenario-picker{max-width:420px}.exercise-title{font-size:23px}.sim-controls input[type=range]{height:28px;margin-bottom:12px}.sim-actions button{min-height:40px}.instruments output{font-size:24px}.sim-actions{gap:5px}.sim-actions button{padding:6px}
  .bottom-bar{flex-wrap:wrap;gap:6px 20px;padding:14px 0}#help{flex-basis:100%}#status{margin-left:auto;max-width:45%}.source-button{max-width:50%}dialog{padding:22px}dialog h2{font-size:28px}
}
@media(max-width:480px){
  .brand>span:last-child{min-width:0}.brand-collection{display:block;margin-top:2px}.brand-divider{display:none}.utilities{column-gap:12px;font-size:9px}.other-exhibit-link{margin-right:0}.utilities .text-button{font-size:9px}.locale-picker select{font-size:10px;max-width:94px;padding:6px 0}
  .scene-wrap{height:530px}.mode-nav button{padding:7px 5px;font-size:9px}.camera-tools{gap:1px}.camera-tools button{font-size:8px;padding:4px 5px}.detail-tools button{font-size:8px}.scene-caption{max-width:calc(100% - 30px)}
  #app[data-mode=helm] #helm-panel{grid-template-columns:1fr;gap:19px}.mission-readout{border-left:0;border-top:1px solid var(--line);padding:16px 0 0}.mission-brief{grid-column:auto}.instruments small{display:inline}.instruments output{font-size:29px}.sim-actions button{font-size:12px}.sim-controls input[type=range]{height:30px;margin-bottom:12px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

#annotations-toggle{font-size:10px;padding:5px 9px;min-height:32px;flex-shrink:0}
#annotations-toggle[aria-pressed=true]{border-color:var(--gold);color:var(--gold)}
#app[data-mode=panorama] #annotations-toggle{display:none}

/* Academy identity and equipment navigation stay in the surrounding interface. */
.brand-logo{width:48px;height:48px;object-fit:contain;border-radius:3px;background:white}
.brand strong{display:block;font-size:13px;letter-spacing:.2px;color:var(--paper)}
.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.2px;font-weight:400}
.equipment-panel{padding-bottom:16px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.equipment-panel h3{font-size:13px;color:var(--gold);font-weight:500;margin:0 0 7px}
.equipment-panel p{font-size:11px;line-height:1.5;color:var(--muted);margin-bottom:10px}
.equipment-stations{display:grid;grid-template-columns:1fr 1fr;gap:5px}
.equipment-stations button{font-size:11px;padding:7px;min-height:36px}
#equipment-select{width:100%;margin-top:9px;font-size:11px;min-height:40px}
#equipment-overview{margin-top:8px;border:0;padding:4px 0;min-height:30px;font-size:11px;color:var(--gold)}

/* The exhibit begins with its story; details appear after a visitor selects one. */
[hidden]{display:none!important}
.exhibit-intro{padding:28px 0 26px;border-bottom:1px solid var(--line,#35423d)}
.exhibit-intro h2{font-size:clamp(25px,2.4vw,34px);line-height:1.15;font-weight:500;letter-spacing:-.7px;margin:18px 0}
.exhibit-intro>p:not(.eyebrow){font-size:14px;line-height:1.8;color:#c1ccc2}
.story-more{display:inline-block;color:#d8bc79;font-size:13px;line-height:1.6;margin:5px 0 17px;text-decoration:underline;text-underline-offset:4px}
.exhibit-intro .story-invite{padding-top:18px;border-top:1px solid #35423d;color:#e8ece3!important}
.story-back{margin:20px 0 0;color:#d8bc79;border:0;background:none;padding:5px 0;text-align:left}
.part-source-details{font-size:11px;line-height:1.65;color:#a5b4a9;margin:18px 0}
.part-source-details summary{cursor:pointer;color:#d8bc79}
.reconstruction-note{display:none}
.evidence-source-details{margin-top:12px;font-size:11px;line-height:1.7}
.evidence-source-details summary{color:#d8bc79;cursor:pointer}