@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Instrument+Serif:ital@0;1&display=swap');
:root{color-scheme:dark;--ink:#101827;--paper:#edece5;--muted:#a3adbb;--line:#3a4656;--lime:#d4ed9e;--pink:#e8a7b7}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--paper);font-family:'DM Sans',sans-serif}button,input{font:inherit}button{color:inherit}.shell{max-width:1800px;margin:auto;padding:0 5.2%}header{height:100px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:52px}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;font-size:14px;font-weight:700;line-height:1.05;letter-spacing:-.04em}.brand-mark{font-size:38px;color:var(--lime);font-weight:400}.header-note{font-size:11px;line-height:1.4;color:var(--muted);margin:0}.motion{margin-left:auto;background:none;border:1px solid #536071;border-radius:30px;padding:10px 15px;font-size:11px;cursor:pointer}.motion span{margin-left:12px;color:var(--lime)}.intro{padding:86px 0 70px;display:flex;align-items:end;justify-content:space-between;gap:40px}.eyebrow,.small-label,.scene-index{font-size:10px;letter-spacing:.12em;font-weight:700;color:var(--lime)}h1,h2,footer p{font-family:'Instrument Serif',Georgia,serif;font-weight:400;letter-spacing:-.045em}h1{font-size:clamp(65px,8.5vw,135px);line-height:.82;margin:25px 0 0}h1 em,footer em{color:#b8c9d5;font-weight:400}.intro-copy{color:#b7c1cb;max-width:290px;font-size:14px;line-height:1.7;margin:0 4% 3px 0}.scene-nav{display:flex;gap:6px;overflow-x:auto;padding-bottom:16px;scrollbar-width:thin}.scene-nav button{white-space:nowrap;background:transparent;border:1px solid #536071;border-radius:40px;padding:11px 18px;color:#bec8d2;cursor:pointer;font-size:12px}.scene-nav button[aria-selected=true]{background:var(--paper);border-color:var(--paper);color:#172132}.scene-nav button:hover,.motion:hover,.reset:hover{border-color:var(--lime)}button:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:3px}.experiment{border-top:1px solid var(--line)}.scene-top{display:flex;align-items:end;justify-content:space-between;padding:35px 0 24px;gap:20px}.scene-index{color:#9eaebd}h2{font-size:clamp(45px,5vw,72px);line-height:1;margin:10px 0 0}.scene-instruction{font-size:12px;color:#b9c6d1;text-align:right;max-width:260px;line-height:1.5}.stage{height:min(57vw,570px);min-height:340px;position:relative;overflow:hidden;background:#070f1e;border:1px solid #334353;border-radius:3px}canvas{display:block;width:100%;height:100%;touch-action:none}.stage-caption{position:absolute;left:22px;bottom:20px;color:#c2cfda;font-size:9px;letter-spacing:.12em;pointer-events:none}.live-dot{display:inline-block;width:6px;height:6px;background:var(--lime);border-radius:100%;margin-right:8px}.reset{position:absolute;right:18px;bottom:15px;border:1px solid #778b99;background:#101d2bcc;border-radius:30px;padding:8px 12px;cursor:pointer}.reset span{font-size:11px;margin-left:4px}.under-stage{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:8%;padding:32px 0 72px}.small-label{color:#8fa0ae;font-size:9px;margin:0 0 17px}.explanation>p:last-child{font-size:14px;line-height:1.7;color:#c7d0d6;margin:0;max-width:390px}.equation>p:nth-child(2){font-family:'Instrument Serif',Georgia,serif;font-size:27px;margin:0 0 6px;color:#e6edae}.equation span{font-size:11px;color:#96a5b1;line-height:1.5}.control{margin-bottom:17px}.control-line{display:flex;justify-content:space-between;font-size:12px;margin-bottom:8px}.control-line output{color:var(--lime)}input[type=range]{width:100%;height:3px;accent-color:var(--lime);cursor:pointer}footer{border-top:1px solid var(--line);padding:45px 0 55px;display:flex;align-items:end;justify-content:space-between}footer p{font-size:40px;line-height:1;margin:0}footer span{font-size:11px;color:#95a5b1}@media(max-width:700px){.shell{padding:0 5%}header{height:78px;gap:15px}.header-note{display:none}.intro{padding:64px 0 45px;display:block}h1{font-size:clamp(58px,14vw,95px)}.intro-copy{margin-top:28px;max-width:340px}.scene-top{padding-top:28px}.scene-instruction{max-width:140px;font-size:11px}.stage{height:60vh;min-height:330px;max-height:510px}.under-stage{grid-template-columns:1fr 1fr;gap:30px;padding-bottom:50px}.controls{grid-column:1/-1}footer p{font-size:31px}footer span{max-width:100px;text-align:right;line-height:1.5}}@media(max-width:400px){.under-stage{grid-template-columns:1fr}.controls{grid-column:auto}.stage{height:48vh}}