@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;650;700;800&display=swap');
:root{--ink:#17343e;--muted:#647b82;--teal:#087e80;--mint:#d9f1e8;--paper:#f4f7f7;--line:#dbe4e5;--navy:#102a36;--amber:#edb24f;--white:#fff;font-family:'DM Sans',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button,a,input{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #139aa0}button{color:inherit}a{color:var(--teal)}[hidden]{display:none!important}.app-header{height:82px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;gap:22px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}.brand img{width:66px;height:66px;object-fit:contain}.brand span{font-family:Manrope,sans-serif;font-size:17px;font-weight:800}.brand small{display:block;font-size:9px;letter-spacing:1.3px;margin-top:5px;font-weight:600;color:var(--muted)}.academic-logo{width:132px;height:62px;object-fit:contain}.main-tabs{display:flex;align-self:stretch;gap:24px}.main-tabs button{border:0;border-bottom:3px solid transparent;background:none;font-size:13px;font-weight:600;padding:0 5px}.main-tabs button.active{border-bottom-color:var(--teal);color:var(--teal)}.workspace{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:calc(100vh - 82px)}.sidebar{background:#fff;border-right:1px solid var(--line);padding:28px 18px 20px;display:flex;flex-direction:column;gap:20px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.5px;color:var(--teal);margin:0 0 10px}.sidebar-head{padding:0 10px}.sidebar h1{font-family:Manrope,sans-serif;font-size:25px;line-height:1.2;margin:0 0 8px;font-weight:800;letter-spacing:-1px}.sidebar-head>p:last-child{font-size:12px;color:var(--muted);margin:0}.search{display:flex;gap:8px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:9px;padding:9px 10px}.search span{font-size:22px;line-height:16px}.search input{width:100%;border:0;background:transparent;font-size:12px;min-width:0;color:var(--ink)}.room-nav{display:flex;flex-direction:column;gap:5px}.room-button{width:100%;border:1px solid transparent;border-radius:10px;padding:9px 8px;display:flex;align-items:center;text-align:left;gap:10px;background:transparent}.room-button:hover{background:#f1f5f5}.room-button.active{background:#e9f4f0;border-color:#c5e1d9}.room-button img{width:48px;height:43px;object-fit:cover;border-radius:6px}.room-button strong{display:block;font-size:12px;line-height:1.4}.room-button small{display:block;color:var(--muted);font-size:10px;margin-top:3px}.room-button .room-check{margin-left:auto;font-size:13px;color:var(--teal)}.sidebar-bottom{margin-top:auto;padding:12px 7px 0}.progress-title{display:flex;justify-content:space-between;gap:5px;font-size:10px}.progress-title strong{white-space:nowrap}progress{width:100%;height:6px;border:0;border-radius:5px;margin:12px 0;background:#e4ebeb;accent-color:var(--teal)}progress::-webkit-progress-bar{background:#e4ebeb;border-radius:5px}progress::-webkit-progress-value{background:var(--teal);border-radius:5px}.sidebar-bottom>small{font-size:10px;line-height:1.5;display:block;color:var(--muted)}.text-button{border:0;background:none;padding:8px 0;font-weight:600;font-size:12px;color:var(--teal)}.sidebar-bottom .text-button{margin-top:9px}main{padding:29px 35px 16px;min-width:0;max-width:1800px;width:100%;margin:auto}.scene-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.scene-heading h2{font-family:Manrope,sans-serif;font-size:clamp(24px,2.45vw,36px);font-weight:800;letter-spacing:-1.2px;line-height:1.2;margin:0 0 8px}.scene-heading p:not(.eyebrow){font-size:13px;color:var(--muted);margin:0;line-height:1.5}.outline-button,.solid-button{border-radius:8px;padding:11px 15px;font-size:12px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}.outline-button{border:1px solid var(--line);background:white}.outline-button:hover{border-color:var(--teal)}.solid-button{background:var(--teal);color:white;border:1px solid var(--teal)}.solid-button:hover{background:#06696b}.viewer{height:clamp(360px,56vw,660px);max-height:67vh;min-height:350px;background:#142d36;border-radius:16px;position:relative;overflow:hidden;box-shadow:0 9px 24px #102a3612}.viewer-top{position:absolute;top:18px;left:18px;right:18px;z-index:3;display:flex;align-items:center;justify-content:space-between;pointer-events:none}.scene-badge,.image-count{background:#0b202bd9;color:white;font-size:10px;font-weight:500;padding:8px 11px;border-radius:6px;backdrop-filter:blur(6px)}.scene-badge{display:flex;gap:7px;align-items:center}.scene-badge i{width:6px;height:6px;border-radius:50%;background:#a6e7d3}.photo-viewport{position:absolute;inset:0;overflow:hidden;display:flex;justify-content:center;align-items:center;touch-action:none}.photo-viewport.zoomed{cursor:grab}.photo-viewport.dragging{cursor:grabbing}#photo-plane{position:relative;flex-shrink:0;transform-origin:center;will-change:transform}#scene-image{display:block;width:100%;height:100%;object-fit:contain;user-select:none}#hotspots{position:absolute;inset:0;pointer-events:none}.hotspot{position:absolute;transform:translate(-50%,-50%);width:39px;height:39px;display:grid;place-items:center;pointer-events:auto;background:var(--teal);color:#fff;border:3px solid white;border-radius:50%;box-shadow:0 0 0 8px #e1fff029,0 3px 12px #001b3450;font-size:13px;font-weight:800;transition:box-shadow .2s,background .2s}.hotspot:hover,.hotspot:focus-visible{background:#07595b;box-shadow:0 0 0 12px #e1fff045,0 3px 12px #001b3450;z-index:4}.hotspot.completed{background:#17563f}.hotspot .point-label{display:none;position:absolute;left:43px;top:1px;background:#092b35ed;color:white;padding:8px 11px;border-radius:6px;font-size:11px;white-space:nowrap;box-shadow:0 3px 15px #0002}.hotspot:hover .point-label,.hotspot:focus-visible .point-label{display:block}.hotspot.right .point-label{left:auto;right:43px}.viewer-controls{position:absolute;bottom:16px;left:18px;right:18px;display:flex;align-items:center;justify-content:space-between;gap:10px;pointer-events:none;z-index:3}.viewer-controls button{border:0;background:#102a36ec;color:#fff;font-size:11px;padding:9px 12px;pointer-events:auto;border-radius:6px;backdrop-filter:blur(5px)}.viewer-controls p{font-size:11px;color:white;background:#102a36cf;border-radius:6px;padding:9px 12px;margin:0;max-width:45%;text-align:center}.zoom-controls{display:flex;gap:2px;pointer-events:auto}.zoom-controls button:first-child{border-radius:6px 0 0 6px}.zoom-controls button:last-child{border-radius:0 6px 6px 0}.zoom-controls button:nth-child(2){border-radius:0;min-width:56px}.scene-meta{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:40px;font-size:10px;color:var(--muted)}.activities-heading{display:flex;align-items:center;justify-content:space-between;margin:12px 0}.activities-heading h3{font-family:Manrope,sans-serif;font-size:16px;margin:0;font-weight:800}.activities-heading>span{font-size:11px;color:var(--muted)}.activity-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.activity-card{border:1px solid var(--line);background:white;border-radius:11px;padding:15px;text-align:left;display:flex;flex-direction:column;align-items:flex-start;gap:11px;position:relative;min-height:138px;transition:transform .15s,border-color .15s}.activity-card:hover{transform:translateY(-3px);border-color:#8db8b7}.activity-card .card-top{display:flex;align-items:center;justify-content:space-between;width:100%}.point-number{display:grid;place-items:center;border-radius:7px;width:27px;height:27px;background:#e9f4f0;font-size:12px;color:var(--teal);font-weight:800}.activity-card small{font-size:9px;text-transform:uppercase;letter-spacing:.7px;color:var(--muted)}.activity-card h4{font-size:13px;line-height:1.4;margin:0;font-weight:700}.activity-card p{font-size:11px;line-height:1.5;color:var(--muted);margin:0}.activity-card.completed{border-color:#a8d3c1}.activity-card.completed .point-number{background:#d3eede}.scene-pagination{display:flex;justify-content:space-between;align-items:center;margin:22px 0 12px;gap:10px}.scene-pagination>span{font-size:11px;color:var(--muted)}.scope-note{font-size:10px;line-height:1.6;color:var(--muted);margin:12px 0 0}footer{margin-top:25px;padding-top:13px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:10px;color:var(--muted)}footer button{font-size:10px!important}.tour-container{height:70vh;min-height:400px;background:var(--navy);display:flex;justify-content:center;align-items:center;border-radius:16px;overflow:hidden}.tour-container iframe{border:0;width:100%;height:100%}.tour-note{padding:20px;background:#e5f1ee;margin-top:16px;border-radius:10px;font-size:13px;line-height:1.7}.tour-note p{margin:5px 0 0}.activity-dialog{padding:0;border:0;border-radius:18px;width:min(600px,calc(100vw - 28px));max-height:90vh;color:var(--ink);box-shadow:0 25px 100px #0005}.activity-dialog::backdrop,.info-dialog::backdrop{background:#092b35a6;backdrop-filter:blur(3px)}.activity-hero{background:var(--navy);padding:28px 30px 24px;color:white;position:relative}.activity-hero .eyebrow{color:#8ccec1;padding-right:25px;font-size:9px}.activity-hero h2{font-family:Manrope,sans-serif;font-size:25px;line-height:1.25;margin:10px 28px 10px 0;letter-spacing:-.7px}.activity-hero>p:last-child{font-size:12px;color:#bed1d5;line-height:1.6;margin:0}.close-button{width:32px;height:32px;border:0;background:#eef3f3;border-radius:50%;font-size:23px;line-height:1;flex-shrink:0}.activity-hero .close-button{position:absolute;top:22px;right:22px;background:#ffffff20;color:#fff}.activity-body{padding:25px 30px 28px}.question-count{color:var(--teal);font-size:10px;letter-spacing:1px;font-weight:700;text-transform:uppercase}.case-text{font-size:14px;line-height:1.7;margin:13px 0 15px}.question-title{font-size:16px;line-height:1.5;margin:0 0 16px}.answers{display:flex;flex-direction:column;gap:9px}.answer-option{border:1px solid var(--line);border-radius:9px;padding:13px;display:flex;align-items:flex-start;gap:11px;font-size:13px;line-height:1.5;background:#fff;text-align:left;cursor:pointer}.answer-option:hover{background:#f2f7f6}.answer-option input{accent-color:var(--teal);margin-top:3px}.answer-option:has(input:checked){border-color:var(--teal);background:#edf7f3}.answer-option.correct{border-color:#56a888;background:#e8f5eb}.answer-option.incorrect{border-color:#d38965;background:#fff2e8}.feedback{padding:15px 17px;border-radius:9px;background:#e9f5ef;margin-top:18px;font-size:12px;line-height:1.7}.feedback.incorrect{background:#fff1df}.feedback strong{display:block;font-size:13px;margin-bottom:5px}.feedback a{display:inline-block;margin-top:8px;font-size:11px}.activity-actions{display:flex;justify-content:space-between;align-items:center;margin-top:20px;gap:12px}.activity-actions small{font-size:10px;color:var(--muted)}.completion{padding:34px 30px;text-align:center}.completion-icon{font-size:26px;background:var(--mint);color:var(--teal);width:60px;height:60px;display:grid;place-items:center;border-radius:50%;margin:0 auto 15px}.completion h2{font-family:Manrope,sans-serif;letter-spacing:-.5px}.completion p{font-size:13px;line-height:1.7;color:var(--muted)}.completion .solid-button{margin:10px 0}.info-dialog{border:0;border-radius:16px;padding:25px;width:min(890px,calc(100vw - 28px));max-height:90vh;color:var(--ink)}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;margin-bottom:20px}.dialog-heading h2{font-family:Manrope,sans-serif;font-size:23px;letter-spacing:-.7px;margin:0}.info-dialog p,.info-dialog li{font-size:13px;line-height:1.75}.map-image{width:100%;border-radius:10px;background:#15242c}.room-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.resource-item{border:1px solid var(--line);border-radius:10px;overflow:hidden}.resource-item img{width:100%;aspect-ratio:1.7;object-fit:cover}.resource-item>div{padding:12px}.resource-item h3{font-size:13px;margin:0 0 7px}.resource-item p{font-size:11px;margin:0;color:var(--muted)}.resource-item a{font-size:11px;display:inline-block;margin-top:8px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:25px}.stat{background:white;border:1px solid var(--line);padding:24px;border-radius:12px}.stat strong{font-family:Manrope,sans-serif;font-size:36px;display:block;letter-spacing:-1px}.stat span{font-size:12px;color:var(--muted)}.progress-list{display:flex;flex-direction:column;gap:8px}.progress-row{padding:15px;border:1px solid var(--line);border-radius:9px;background:white;display:flex;gap:12px;align-items:center}.progress-row strong{display:block;font-size:13px}.progress-row small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.progress-row button{margin-left:auto}.progress-actions{display:flex;gap:10px;margin-top:25px}.progress-detail{background:#e9f4f0;border-radius:10px;padding:16px;font-size:12px;line-height:1.7;margin-bottom:20px}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--navy);color:white;padding:12px 18px;border-radius:10px;font-size:12px;z-index:10;display:none}#toast.visible{display:block}#image-error{position:absolute;inset:35% 15%;color:white;font-size:14px;text-align:center}video{width:100%;border-radius:10px}.empty{font-size:12px;color:var(--muted);padding:15px}
@media(min-width:1650px){.viewer{height:680px;max-height:70vh}.sidebar{padding:32px 22px}.workspace{grid-template-columns:275px minmax(0,1fr)}}
@media(max-width:1150px){.app-header{padding:0 18px}.academic-logo{width:110px}.brand span{font-size:15px}.main-tabs{gap:12px}.main-tabs button{font-size:12px}.workspace{grid-template-columns:220px minmax(0,1fr)}main{padding:25px 22px 15px}.sidebar{padding:25px 12px}.activity-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.viewer{height:510px;max-height:65vh}.viewer-controls p{display:none}}
@media(max-width:800px){.app-header{height:auto;min-height:76px;padding:8px 15px;flex-wrap:wrap;gap:4px}.brand img{width:54px;height:54px}.academic-logo{width:112px;height:54px}.main-tabs{order:3;flex-basis:100%;height:43px;justify-content:center;gap:24px}.workspace{grid-template-columns:minmax(0,1fr)}.sidebar{border-right:0;border-bottom:1px solid var(--line);padding:14px 16px;gap:10px}.sidebar-head,.sidebar-bottom,.search{display:none}.room-nav{flex-direction:row;overflow:auto;gap:8px;padding-bottom:2px}.room-button{min-width:165px;padding:7px}.room-button img{width:38px;height:38px}.room-button strong{font-size:11px}.room-button small{font-size:9px}main{padding:22px 16px 15px}.scene-heading{align-items:flex-start;gap:10px}.scene-heading h2{font-size:27px}.scene-heading .outline-button{padding:9px;font-size:10px}.scene-heading p:not(.eyebrow){font-size:12px}.viewer{height:58vh;min-height:320px;max-height:none}.scene-meta{font-size:9px}.activity-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.scope-note{font-size:9px}.stats{gap:8px}.stat{padding:15px}.stat strong{font-size:29px}.stat span{font-size:10px}.activity-body{padding:22px}.activity-hero{padding:25px 22px}.resource-grid{grid-template-columns:1fr}.viewer-top{left:11px;right:11px;top:11px}.viewer-controls{left:11px;right:11px;bottom:11px}.hotspot{width:35px;height:35px}.hotspot .point-label{white-space:normal;min-width:120px;max-width:150px}.scene-pagination .outline-button,.scene-pagination .solid-button{font-size:10px;padding:10px}.scene-pagination span{font-size:9px}.scene-badge,.image-count{font-size:9px}.tour-container{height:60vh}.progress-row .outline-button{font-size:10px;padding:9px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.scene-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}@media(max-width:800px){.scene-links{max-width:155px}.scene-links .outline-button{white-space:normal;text-align:center}}

/* Opening film: controls stay available while the media loads. */
.footer-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.intro-open{overflow:hidden}.intro-dialog{position:fixed;inset:0;width:100vw;height:100vh;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:#071b26;color:#fff;overflow:hidden}.intro-dialog::backdrop{background:#071b26}.intro-dialog video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0}.intro-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,19,30,.91) 0%,rgba(4,19,30,.6) 48%,rgba(4,19,30,.18) 100%),linear-gradient(0deg,rgba(4,19,30,.82),transparent 32%,transparent 70%,rgba(4,19,30,.5));pointer-events:none}.intro-top{position:absolute;top:max(30px,env(safe-area-inset-top));left:6vw;right:6vw;display:flex;align-items:center;justify-content:space-between;gap:16px}.intro-label{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:1px;color:#e2f5f2}.intro-label i{width:7px;height:7px;border-radius:50%;background:#75e0c6;box-shadow:0 0 15px #75e0c666}.intro-skip{border:1px solid #ffffff55;border-radius:30px;color:#fff;background:#0d253680;backdrop-filter:blur(8px);font-size:12px;padding:11px 19px}.intro-skip span{padding-left:10px}.intro-skip:hover{background:#ffffff20}.intro-copy{position:absolute;left:10vw;right:8vw;top:50%;transform:translateY(-45%)}.intro-kicker{font-size:11px;letter-spacing:3px;font-weight:600;color:#8fe1d0;margin:0 0 23px}.intro-copy h1{font-family:Manrope,'Arial',sans-serif;font-size:clamp(100px,16vw,230px);line-height:.9;letter-spacing:-.065em;font-weight:800;margin:0}.intro-copy h1 span{display:block;font-size:clamp(19px,3.2vw,43px);letter-spacing:-.02em;font-weight:500;line-height:1.4;margin-top:24px}.intro-rule{width:64px;height:3px;background:#68dabe;margin:30px 0 22px}.intro-copy #intro-description{font-size:clamp(15px,1.7vw,22px);font-weight:400;letter-spacing:.03em;color:#d2e3e5;margin:0}.intro-play{margin-top:24px;border:1px solid #b7ede0;border-radius:6px;padding:12px 20px;color:#102d39;background:#b7ede0;font-weight:700;font-size:13px}.intro-status{font-size:12px;line-height:1.6;max-width:440px;color:#cfdddd;margin-top:14px}.intro-bottom{position:absolute;bottom:max(32px,env(safe-area-inset-bottom));left:6vw;right:6vw;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:10px;letter-spacing:2px;color:#d0e2e5}.intro-bottom #intro-time{font-family:Manrope,monospace;font-size:15px;letter-spacing:1px}.intro-timeline{position:absolute;bottom:0;left:0;right:0;height:3px;background:#ffffff15}.intro-timeline>div{height:100%;width:0;background:#86e6ce;transition:width .2s linear}.intro-dialog[open] .intro-copy{animation:eer-arrival 1.4s cubic-bezier(.22,1,.36,1) both}@keyframes eer-arrival{from{opacity:0;transform:translateY(calc(-45% + 22px))}to{opacity:1;transform:translateY(-45%)}}@media(max-width:600px){.intro-top{top:24px}.intro-label{font-size:11px}.intro-copy{left:8vw;right:8vw}.intro-kicker{font-size:9px;letter-spacing:1.7px;margin-bottom:24px}.intro-copy h1{font-size:31vw}.intro-copy h1 span{font-size:21px;max-width:270px}.intro-rule{margin:24px 0 18px}.intro-bottom{font-size:8px;letter-spacing:1.2px}.intro-skip{font-size:11px;padding:10px 14px}.intro-shade{background:linear-gradient(90deg,#04131ee8,#04131e80),linear-gradient(0deg,#04131edd,transparent 55%)}footer{align-items:flex-start}.footer-actions{gap:3px;flex-direction:column;align-items:flex-end}}@media(max-height:540px) and (orientation:landscape){.intro-copy h1{font-size:90px}.intro-copy h1 span{font-size:20px;margin-top:12px}.intro-kicker{margin-bottom:14px}.intro-rule{margin:14px 0}.intro-copy #intro-description{font-size:15px}.intro-top{top:18px}.intro-bottom{bottom:18px}}@media(prefers-reduced-motion:reduce){.intro-dialog[open] .intro-copy{animation:none}.intro-timeline>div{transition:none}}