:root{font-family:Inter,Arial,Helvetica,sans-serif;color:#142d37;background:#fff;font-synthesis:none;--ink:#142d37;--muted:#5a7077;--line:#dce6e8;--teal:#007f83;--tint:#edf7f7}*{box-sizing:border-box}body{margin:0}button,a,input,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit}button{border:1px solid var(--line);background:white;color:var(--ink);padding:.6rem .78rem;border-radius:6px;cursor:pointer;transition:background .15s}button:hover{background:var(--tint);border-color:#9abfc3}button:disabled{cursor:default;opacity:.55}button[aria-pressed=true]{background:#e2f3f2;border-color:#9abfc3;color:#00676b}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #d09123;outline-offset:3px}a{color:#00797d;text-decoration:none}a:hover{text-decoration:underline}header{height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:35px;padding:0 30px}.brand{display:flex;gap:12px;align-items:center;font-size:14px;letter-spacing:.12em;color:var(--ink)}.brand b{display:block;letter-spacing:.3em;font-size:12px;padding-top:4px}.brand-mark{font-size:37px;color:var(--teal);font-weight:300}.header-note{font-size:12px;letter-spacing:.16em;color:var(--muted);margin-left:auto}.build-link{font-size:14px;color:var(--ink)}main{display:grid;grid-template-columns:244px minmax(420px,1fr) 328px;min-height:calc(100vh - 127px)}.collection{padding:30px 20px 24px 26px;border-right:1px solid var(--line);display:flex;flex-direction:column}.eyebrow{font-size:12px;letter-spacing:.13em;line-height:1.4;color:var(--teal);font-weight:700;margin:0 0 12px}h1{font-size:34px;font-weight:500;letter-spacing:-1.5px;line-height:1.07;margin:4px 0 18px}.intro{font-size:14px;line-height:1.55;color:var(--muted);margin:0 0 22px}nav{display:flex;flex-direction:column;gap:5px}.exhibit{border-color:transparent;display:flex;gap:12px;text-align:left;padding:12px 9px;align-items:center;min-height:54px}.exhibit .num{font-size:12px;color:#5e7980;font-variant-numeric:tabular-nums}.exhibit .name{font-size:14px;font-weight:600;line-height:1.3}.exhibit .sub{display:block;font-size:12px;font-weight:400;margin-top:3px;color:var(--muted)}.exhibit.active{background:var(--tint);border-color:#cee7e7;box-shadow:inset 3px 0 var(--teal)}.collection-foot{font-size:12px;line-height:1.8;margin-top:auto;padding-top:30px}.status-dot{display:inline-block;background:var(--teal);height:6px;width:6px;border-radius:50%;margin-right:6px}.muted{color:var(--muted)}.workspace{display:flex;flex-direction:column;min-width:0;padding:26px 24px 20px}.view-heading{display:flex;justify-content:space-between;align-items:center;gap:14px}.view-heading .eyebrow{margin-bottom:6px}h2{font-size:25px;letter-spacing:-.7px;font-weight:500;margin:0}.view-heading #counter{font-size:12px;white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}#viewport{position:relative;min-height:400px;height:clamp(400px,65vh,640px);flex:none;overflow:hidden;touch-action:none}#viewport>canvas{width:100%;height:100%;display:block;position:absolute;inset:0;outline:none}.view-hint{position:absolute;bottom:18px;left:0;right:0;z-index:1;text-align:center;font-size:12px;color:var(--muted);pointer-events:none}.view-tag{position:absolute;left:0;top:23px;z-index:1;border-left:2px solid #acbfc3;padding:3px 9px;font-size:10px;letter-spacing:.13em;color:var(--muted);pointer-events:none}#loading{position:absolute;inset:0;display:grid;place-items:center;color:var(--teal);font-size:16px;z-index:3;background:white}.view-controls{display:flex;align-items:center;gap:6px;padding:12px 0;border-top:1px solid var(--line)}.view-controls button{font-size:12px;padding:.55rem .65rem}.view-controls .square{min-width:38px}.speed-label{font-size:12px;display:flex;align-items:center;gap:6px}.speed-label select{border:0;background:#f1f6f7;color:var(--ink);padding:7px 2px;border-radius:4px}.control-spacer{flex:1}.xr-bar{display:flex;align-items:center;gap:15px;justify-content:space-between;padding:20px 0 3px}.xr-bar strong{font-size:14px;font-weight:500}.xr-bar p{font-size:12px;line-height:1.5;color:var(--muted);margin:5px 0 0;max-width:300px}.primary{background:var(--teal);border-color:var(--teal);color:white;font-size:14px;white-space:nowrap;padding:14px 16px}.primary span{padding-left:10px}.primary:hover{background:#006b70;color:white}.inspector{border-left:1px solid var(--line);padding:30px 24px;overflow:hidden}.step-nav{display:flex;align-items:center;justify-content:space-between;font-size:11px;letter-spacing:.05em;color:var(--muted)}.step-nav button{padding:3px 9px;border:0;font-size:21px}h3{font-size:23px;font-weight:500;letter-spacing:-.5px;line-height:1.15;margin:22px 0 12px}#explanation{font-size:16px;line-height:1.65;min-height:157px;margin:0 0 17px}.legend{display:flex;gap:11px;flex-wrap:wrap;font-size:12px;line-height:1.5;margin-bottom:25px}.legend i{width:7px;height:7px;border-radius:50%;display:inline-block;margin-right:5px}.experiment{border-top:1px solid var(--line);padding-top:20px}.experiment .eyebrow{font-size:11px;margin-bottom:16px}.experiment label{font-size:14px;color:var(--muted)}.value-line{display:flex;align-items:center;justify-content:space-between;margin:8px 0 15px}.value-line output{font-size:28px;letter-spacing:-.8px;font-variant-numeric:tabular-nums}.value-line button{font-size:12px;border:0;color:var(--teal);padding:5px}input[type=range]{width:100%;accent-color:var(--teal);cursor:pointer;height:22px;margin:0}.small{font-size:12px;color:var(--muted);line-height:1.55}.readouts{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:17px 0;border-top:1px solid var(--line);margin-top:18px}.readout span{display:block;font-size:12px;line-height:1.4;color:var(--muted);min-height:32px}.readout b{font-size:20px;font-weight:500;font-variant-numeric:tabular-nums;display:block;margin-top:3px}#chart{width:100%;height:72px;display:block}#chart-caption{margin:6px 0 18px}details{border-top:1px solid var(--line);padding:14px 0;font-size:14px;line-height:1.6}summary{cursor:pointer;font-weight:500}details p{font-size:14px;color:var(--muted)}#references a{display:block;font-size:12px;margin:10px 0}footer{border-top:1px solid var(--line);padding:16px 28px;display:flex;justify-content:space-between;gap:15px;font-size:11px;letter-spacing:.05em;color:var(--muted)}#toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#142d37;color:#fff;padding:14px 22px;border-radius:7px;max-width:90vw;font-size:14px;z-index:10;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}body.immersive header,body.immersive main,body.immersive footer{visibility:hidden}body.immersive #viewport>canvas{visibility:visible}@media(min-width:1600px){main{grid-template-columns:274px minmax(420px,1fr) 370px}.collection{padding:36px}.inspector{padding:36px}.workspace{padding:32px}#viewport{min-height:550px}}@media(max-width:1150px){main{grid-template-columns:202px minmax(380px,1fr)}.collection{grid-row:1/3;padding:25px 14px}.inspector{grid-column:2;border-left:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:12px 28px}.inspector>.eyebrow,.inspector>.step-nav,.inspector>h3,.inspector>#explanation,.inspector>.legend{grid-column:1}.inspector>.experiment{grid-column:2;grid-row:1/5;border:0}.inspector>.readouts{grid-column:2;grid-row:5/7}.inspector>#chart-wrap{grid-column:1}.inspector>details{grid-column:span 1}#viewport{height:490px;min-height:490px}.header-note{display:none}header{justify-content:space-between}.view-controls button{font-size:12px}.intro{font-size:14px}}@media(max-width:680px){header{height:66px;padding:0 17px;gap:8px}.brand{font-size:11px}.brand b{font-size:10px}.brand-mark{font-size:29px}.build-link{font-size:12px}main{display:flex;flex-direction:column}.collection{padding:20px 17px 12px;border-right:0;border-bottom:1px solid var(--line)}h1{font-size:27px;margin:0;letter-spacing:-.9px}h1 br{display:none}.collection>.eyebrow,.intro,.collection-foot{display:none}nav{flex-direction:row;overflow-x:auto;margin-top:16px;padding-bottom:5px}.exhibit{flex:0 0 172px;min-height:54px;padding:9px;gap:8px}.exhibit .name{font-size:13px}.exhibit .sub{font-size:11px}.workspace{padding:20px 15px 15px}h2{font-size:23px}#viewport{height:380px;min-height:380px}.view-controls{flex-wrap:wrap;gap:5px}.view-controls button{font-size:12px;padding:8px}.xr-bar{align-items:flex-start;flex-direction:column;padding-top:12px}.xr-bar .primary{width:100%}.inspector{display:block;padding:22px 20px}#explanation{min-height:0}h3{margin-top:18px}.readouts{margin-top:10px}.inspector>.experiment{border-top:1px solid var(--line)}footer{padding:15px 18px;flex-wrap:wrap}footer span:nth-child(2){display:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

@media(min-width:1151px){main{height:calc(100dvh - 127px);min-height:560px;overflow:hidden}.collection,.inspector{overflow-y:auto}.workspace{height:100%;overflow:hidden}#viewport{flex:1;height:auto;min-height:280px}.collection{padding-top:22px}.collection h1{font-size:30px}.collection .intro{margin-bottom:14px}.exhibit{padding-top:9px;padding-bottom:9px;min-height:50px}.collection-foot{padding-top:18px}.xr-bar{padding-top:13px}.inspector{padding-top:22px}}