*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--page);color:var(--ink);font:15px/1.75 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif}main{max-width:1400px;margin:auto;padding:32px 36px 40px}button,input,select{font:inherit}button,select{border:1px solid var(--border);background:var(--surface);color:var(--ink);border-radius:9px;padding:9px 13px}button{cursor:pointer}button:hover{border-color:var(--accent)}button[aria-pressed=true]{background:var(--tint);color:var(--accent);border-color:var(--accent)}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}input[type=range]{accent-color:var(--accent);width:100%;min-height:32px;margin:0}.hero{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin:0 0 27px}.eyebrow{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--secondary);margin:0 0 8px}.hero h1{font-size:clamp(32px,4.5vw,51px);font-weight:540;line-height:1.18;letter-spacing:-.045em;margin:8px 0 16px}.intro{font-size:14px;color:var(--secondary);max-width:680px;margin:0}.modes{display:flex;gap:7px;flex-shrink:0;font-size:12px}.explorer{background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden}.workbench{display:grid;grid-template-columns:minmax(0,1fr) 300px}.theater{min-width:0}.scene-wrap{height:530px;position:relative;overflow:hidden;background:#e8ecdf}canvas{display:block;width:100%;height:100%;touch-action:pan-y}.scene-heading{position:absolute;z-index:1;top:20px;left:21px;right:21px;display:flex;justify-content:space-between;gap:14px;pointer-events:none}.scene-heading h2{font-size:16px;line-height:1.4;font-weight:500;margin:0;color:#405442}.scene-heading p{font-size:10px;letter-spacing:.02em;color:#697765;margin:4px 0}.scene-heading>div{background:#fffff1c4;padding:8px 12px;border-radius:8px;max-width:77%}.badge{font-size:10px;align-self:flex-start;padding:6px 9px;border:1px solid #bcc8b18c;border-radius:30px;background:#fffff1ac;color:#4d624c}.scene-note{position:absolute;bottom:11px;left:20px;right:20px;z-index:1;font-size:10px;line-height:1.5;color:#526551;pointer-events:none;max-width:680px}.scene-note span{background:#fffef4d6;padding:4px 8px;border-radius:4px;-webkit-box-decoration-break:clone;box-decoration-break:clone}.view-tabs{display:flex;gap:7px;padding:13px 18px;border-bottom:1px solid var(--border);font-size:12px}.controls{display:flex;align-items:center;gap:9px;padding:14px 18px;border-top:1px solid var(--border);flex-wrap:wrap}.controls button{font-size:12px;min-height:41px}.primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}.timeline{display:flex;align-items:center;gap:13px;padding:0 18px 16px}.timeline label{font-size:11px;color:var(--secondary);white-space:nowrap}.timeline output{font-size:10px;color:var(--secondary);white-space:nowrap}.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;padding:0 18px 18px}.steps button{font-size:11px;padding:8px 4px;min-height:45px;line-height:1.45}.inspector{border-left:1px solid var(--border);padding:23px;min-width:0}.inspector h3{font-size:20px;font-weight:550;line-height:1.4;margin:8px 0 18px}.setting{display:flex;flex-direction:column;gap:6px;font-size:12px;margin:18px 0}.setting>span{display:flex;justify-content:space-between;gap:8px}.setting output{color:var(--secondary);font-variant-numeric:tabular-nums}.setting select{width:100%;font-size:12px;padding:9px;min-width:0}.setting.check{flex-direction:row;justify-content:space-between;align-items:center}.setting.check input{accent-color:var(--accent);width:17px;height:17px}.readout{border-top:1px solid var(--border);margin-top:22px;padding-top:20px}.meter-label{display:flex;justify-content:space-between;font-size:11px;gap:12px}.meter{height:5px;background:var(--border);border-radius:9px;margin:10px 0 16px;overflow:hidden}.meter>span{display:block;height:100%;background:#63a5a8;transition:width .1s}.metric{font-size:31px;line-height:1.25;color:var(--accent);font-weight:500;margin:8px 0;overflow-wrap:anywhere}.fine{font-size:11px;color:var(--secondary);line-height:1.7}.hint{font-size:12px;line-height:1.75;color:var(--secondary);padding:12px;border-left:2px solid var(--accent);background:var(--tint);margin:20px 0 0}.story{padding:25px 28px;border-top:1px solid var(--border);display:grid;grid-template-columns:1fr 2.2fr;gap:32px}.story h2{font-size:23px;line-height:1.4;font-weight:550;margin:0}.story p{font-size:14px;margin:0;color:var(--secondary)}.story .observe{color:var(--ink);padding-top:14px;font-size:12px}.science{padding:25px 28px;background:var(--tint);border-top:1px solid var(--border);display:grid;grid-template-columns:1.3fr 1fr;gap:36px}.science h3{font-size:13px;margin:14px 0 6px}.science p{font-size:13px;color:var(--secondary);margin:0}.science .formula{font-family:Georgia,serif;font-size:21px;color:var(--ink);margin:14px 0;white-space:pre-line}.science .live{white-space:pre-line;font-variant-numeric:tabular-nums}.details{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;margin:34px 0 25px}.details h2{font-size:22px;font-weight:550;margin:6px 0 13px}.details p{font-size:13px;color:var(--secondary)}details{padding-top:15px;border-top:1px solid var(--border)}summary{cursor:pointer;font-size:13px}.sources{display:flex;flex-direction:column;gap:10px;margin-top:13px}.sources a{font-size:11px;line-height:1.6;color:var(--accent);overflow-wrap:anywhere}.error{position:absolute;left:10%;right:10%;top:37%;background:#fff4db;color:#754e26;padding:20px;z-index:2}.related{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:22px}.related a{font-size:12px;color:var(--accent);text-decoration:none}.swatch{width:41px;height:41px;border-radius:50%;border:1px solid #8d918055;box-shadow:inset 0 4px 8px #ffffff45;flex-shrink:0}.color-readout{display:flex;align-items:center;gap:12px}.pending{border-radius:8px;background:var(--tint);padding:9px;font-size:11px;color:var(--accent)}.chain{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:20px}.chain div{border:1px solid var(--border);padding:12px;border-radius:9px}.chain b{display:block;font-size:11px;color:var(--accent);margin-bottom:5px}.chain span{font-size:11px;color:var(--secondary)}@media(max-width:1100px){main{padding:28px 24px}.workbench{grid-template-columns:minmax(0,1fr) 265px}.inspector{padding:20px}.scene-wrap{height:510px}}@media(max-width:760px){main{padding:24px 14px}.hero{flex-direction:column;align-items:flex-start;gap:17px}.hero h1{font-size:34px}.modes{align-self:flex-end}.workbench{grid-template-columns:1fr}.scene-wrap{height:370px}.scene-heading{left:13px;right:13px;top:13px}.scene-heading h2{font-size:14px}.scene-heading p{font-size:9px}.scene-heading>div{padding:6px 8px;max-width:90%}.badge{display:none}.scene-note{left:12px;right:12px;font-size:9px}.view-tabs{padding:11px 12px;flex-wrap:wrap;font-size:11px}.controls{padding:13px 12px}.timeline{padding:0 12px 14px;gap:9px}.timeline label{font-size:10px}.timeline output{display:none}.steps{padding:0 12px 15px;gap:4px}.steps button{font-size:10px;padding:7px 3px}.inspector{border-left:0;border-top:1px solid var(--border);padding:22px}.inspector h3{font-size:20px}.setting{margin:16px 0}.setting select{font-size:13px}.story{padding:22px;grid-template-columns:1fr;gap:13px}.story h2{font-size:22px}.science{padding:22px;grid-template-columns:1fr;gap:12px}.details{grid-template-columns:1fr;gap:20px;margin-top:27px}.chain{gap:6px}.chain div{padding:9px}.intro{font-size:13px}}