.twin-scene{background:#efeae1;color:#302d27;padding:32px 5% 60px;overflow:hidden;position:relative;transition:background 1s,color .8s}.twin-heading{display:grid;grid-template-columns:1.5fr 1fr;gap:24px 10%;align-items:end;margin:65px 3% 0}.twin-heading>.quiet-label{grid-column:1/-1}.twin-heading h2{font-size:clamp(65px,7.2vw,115px);line-height:.96;margin:0}.twin-heading p{font-size:14px;line-height:1.8;margin:0 0 10px}.twin-stage{position:relative;height:560px;margin-top:25px;isolation:isolate}.twin-stage model-viewer{height:100%;width:100%;position:relative;z-index:2;--poster-color:transparent;transition:filter .8s}.twin-floor{position:absolute;left:20%;right:20%;bottom:70px;height:80px;border-radius:50%;background:radial-gradient(ellipse,#786a5433,transparent 65%);transform:perspective(500px) rotateX(55deg)}.twin-view-label{position:absolute;bottom:20px;left:3%;right:3%;display:flex;justify-content:space-between;gap:20px;font-size:9px;letter-spacing:.12em;z-index:3;pointer-events:none}.twin-loading{position:absolute;bottom:80px;left:0;right:0;text-align:center;font-size:12px}.twin-scan{pointer-events:none;position:absolute;inset:15% 10%;opacity:0;z-index:3;background:linear-gradient(transparent 48%,#ddf1d918 50%,transparent 52%);background-size:100% 6px;mask-image:radial-gradient(ellipse,#000,transparent 70%);transition:opacity 1s}.twin-scene.is-twin{background:#222b28;color:#eeeadd}.is-twin .twin-stage model-viewer{filter:sepia(.45) saturate(.55) hue-rotate(65deg) drop-shadow(0 0 20px #b8e4c022)}.is-twin .twin-scan{opacity:.6}.is-twin .twin-floor{background:radial-gradient(ellipse,#d4eec72e,transparent 65%)}.anatomy{width:40px;height:40px;border:1px solid #eff5df99;border-radius:50%;background:#263c32b3;color:#f2f4de;font-size:27px;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .4s}.is-twin .anatomy{opacity:1;pointer-events:auto}.is-twin[data-active-organ=heart] .heart-target{animation:twin-beat .625s ease-in-out infinite;box-shadow:0 0 30px #e0efd244}.is-twin[data-active-organ=activity] .legs-target{background:#bdc8a0;color:#203329}.twin-interface{display:flex;justify-content:space-between;gap:30px;align-items:center;padding:25px 3%;border-top:1px solid #82796955;border-bottom:1px solid #82796955}.twin-interface button{color:inherit;border:0;border-bottom:1px solid transparent;background:none;cursor:pointer;padding:12px 0;font-size:12px}.twin-interface #twinReveal{font-family:'Bodoni Moda',serif;font-size:25px;display:flex;gap:50px;align-items:center}.twin-organs{display:flex;gap:28px}.twin-organs button[aria-pressed=true]{border-bottom-color:currentColor}.twin-insight{display:grid;grid-template-columns:1fr 2fr .6fr;gap:6%;align-items:center;padding:35px 3%}.twin-insight>div>span,.twin-demo{font-size:9px;letter-spacing:.1em;line-height:1.6}.twin-insight strong{display:block;font-family:'Manrope',sans-serif;font-size:58px;line-height:1.1;letter-spacing:-.05em;font-weight:400;margin-top:10px}.twin-insight small{font-size:13px;letter-spacing:0}.twin-insight h3{font-family:'Bodoni Moda',serif;font-weight:400;font-size:31px;letter-spacing:-.03em;margin:0 0 10px}.twin-insight p{font-size:13px;line-height:1.8;margin:0;max-width:460px}.twin-demo{opacity:.65;text-align:right}.twin-bridge{font-size:11px;line-height:1.8;opacity:.75;margin:5px 3% 0}.twin-stage #twinError{position:absolute;bottom:70px;left:10%;right:10%;font-size:13px;z-index:4}.boundary-editor{font-size:11px;margin-top:8px}.boundary-editor summary{display:flex;justify-content:space-between;cursor:pointer}.boundary-editor label{margin-top:14px}.boundary-editor p{font-size:10px!important}.signal-readings>button{background:none;border:0;color:inherit;padding:5px 0 10px;border-bottom:1px solid transparent;text-align:left;cursor:pointer}.signal-readings>button[aria-pressed=true]{border-bottom-color:#6f624d}.signal-readings>button>span{display:block;font-size:9px;letter-spacing:.1em;margin-bottom:8px}.measure-meaning{text-align:center;font-size:12px;line-height:1.6;margin:0 0 15px}.meaning-path{padding:20px 0 50px;--meaning-progress:0}.meaning-stations{display:flex;justify-content:space-between;gap:25px}.meaning-stations button{background:none;border:0;color:#827a6d;cursor:pointer;font-size:10px;padding:15px 0}.meaning-stations button span{font-size:15px;margin-left:12px}.meaning-stations button[aria-pressed=true]{color:#292b25}.meaning-rail{height:1px;background:#85745b33;position:relative;margin-bottom:40px}.meaning-rail i{position:absolute;height:7px;width:7px;top:-3px;left:calc(var(--meaning-progress)*99%);border-radius:50%;background:#726b4d;transition:left 1s cubic-bezier(.3,.1,.2,1)}.meaning-story{min-height:190px;display:grid;grid-template-columns:1.3fr 1fr;gap:18px 10%}.meaning-story>span{grid-column:1/-1;font-size:10px;letter-spacing:.12em}.meaning-story h3{font-family:'Bodoni Moda',serif;font-size:45px;line-height:1.1;font-weight:400;margin:0;letter-spacing:-.04em}.meaning-story p{font-size:14px;line-height:1.8;margin:0}.meaning-path>button{border:0;border-bottom:1px solid;background:none;padding:12px 0;color:inherit;font-size:12px;cursor:pointer;margin-top:25px}.home-orbit{display:none}@keyframes twin-beat{0%,100%{transform:scale(1)}18%{transform:scale(1.14)}35%{transform:scale(1)}48%{transform:scale(1.08)}}
@media(max-width:700px){.twin-scene{padding:25px 6% 40px}.twin-heading{display:block;margin:45px 0 0}.twin-heading .quiet-label{display:block;margin-bottom:20px}.twin-heading h2{font-size:16vw}.twin-heading p{font-size:12px;margin-top:23px}.twin-stage{height:370px;margin:0 -7%}.twin-view-label{left:6%;right:6%;font-size:8px}.twin-interface{display:block;padding:15px 0}.twin-interface #twinReveal{font-size:23px;justify-content:space-between;width:100%}.twin-organs{justify-content:space-between;gap:12px;margin-top:10px}.twin-organs button{font-size:11px}.twin-insight{grid-template-columns:1fr;padding:25px 0;gap:22px}.twin-insight strong{font-size:48px}.twin-insight h3{font-size:29px}.twin-insight p{font-size:12px}.twin-demo{text-align:left;font-size:8px}.twin-bridge{margin:0;font-size:10px}.anatomy{width:34px;height:34px;font-size:23px}.signal-readings>button>span{font-size:8px;letter-spacing:0}.measure-meaning{font-size:10px}.meaning-stations{gap:15px}.meaning-stations button span{display:block;font-size:12px;margin:10px 0 0}.meaning-story{display:block;min-height:290px}.meaning-story h3{font-size:36px;margin:20px 0}.meaning-story p{font-size:13px}.meaning-path>button{margin-top:10px}}
@media(prefers-reduced-motion:reduce){.twin-scene,.twin-stage model-viewer,.twin-scan{transition:none}.is-twin[data-active-organ=heart] .heart-target{animation:none}.meaning-rail i{transition:none}}

/* Twin stage: keep the dog visible; only the loading label fades out */
.twin-stage model-viewer{
  opacity:1;
  transition:filter .8s;
}
.twin-stage model-viewer::part(default-progress-bar){display:none}
.twin-loading{
  opacity:0;
  pointer-events:none;
  letter-spacing:.06em;
}