:root{--paper:#f5f4ef;--card:#fffefa;--ink:#1c313a;--muted:#60717a;--line:#d8dfdd;--teal:#277365;--minus:#d23b3b;--plus:#2469b5;--gold:#bd862e;--sans:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;color:var(--ink);background:var(--paper);font:13px/1.55 var(--sans)}a{color:var(--teal);text-underline-offset:3px}button,input,select{font:inherit;color:inherit}button,select{cursor:pointer}button{padding:7px 10px;border:1px solid var(--line);background:var(--card);border-radius:5px;white-space:nowrap}button:hover{border-color:var(--teal)}button:disabled{cursor:default;opacity:.5}button.active,button[aria-pressed=true]{border-color:var(--teal);background:#e7eee8}select,input[type=search],input[type=number],input[type=text],input:not([type]){border:1px solid var(--line);background:var(--card);border-radius:4px;padding:8px 10px;max-width:100%;min-width:0}input[type=range],input[type=checkbox]{accent-color:var(--teal)}input[type=range]{width:100%}:focus-visible{outline:3px solid #c2943c;outline-offset:3px}.skip{position:absolute;top:-100px}.skip:focus{top:5px;background:white;z-index:100;padding:12px}header{padding:16px 30px;background:var(--card);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink);font-weight:600;font-size:16px}.brand small{display:block;font-weight:400;font-size:10px;color:var(--muted)}.mark{font-size:28px;color:var(--teal)}nav{display:flex;align-items:center;gap:21px;font-size:12px}nav a{color:var(--ink);text-decoration:none}main{max-width:1920px;margin:auto;padding:28px 30px}.intro{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px;gap:25px}.eyebrow{text-transform:uppercase;font-size:9px;font-weight:650;letter-spacing:.14em;color:var(--teal);margin:0 0 5px}h1,h2,p{margin:0}h1{font-size:clamp(27px,2.7vw,39px);font-weight:520;letter-spacing:-.04em;line-height:1.15}h2{font-size:18px;line-height:1.3;letter-spacing:-.02em;font-weight:560}.lead{margin-top:9px;color:var(--muted);font-size:13px}#boot{font-size:10px;color:var(--muted)}label{display:block;font-size:10px;color:var(--muted)}label select,label input{display:block;margin-top:4px;color:var(--ink);font-size:12px}label output{float:right;font-family:var(--mono)}.familybar{display:flex;align-items:end;gap:10px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.familybar label select{width:100%}.searchfield{flex:1;min-width:140px}.searchfield input{width:100%}.familyfield{flex:1.6;min-width:170px}.familyline{display:flex;align-items:center;gap:12px;padding:19px 0}.familyline>div{flex:1;min-width:0}.familyline h2{font-size:20px}.familyline>label{max-width:275px}.familyline select{width:100%}.equation{font:15px/1.6 Georgia,serif;margin-top:3px;overflow-wrap:anywhere}.workspace{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1.16fr) minmax(0,1.05fr);gap:18px}.panel{min-width:0;border:1px solid var(--line);border-radius:9px;background:var(--card);overflow:hidden;align-self:start}.panelhead{padding:16px 15px 10px;display:flex;justify-content:space-between;align-items:center;gap:6px}.panelhead h2{font-size:16px}.panelhead button{border:0;background:none;font-size:19px}.stage{position:relative;aspect-ratio:1.08;overflow:hidden;background:radial-gradient(ellipse at 50% 45%,#fffefa,#f5f4ee)}.stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}.overlay{pointer-events:none}.corner{position:absolute;bottom:8px;left:11px;pointer-events:none;font-size:9px;color:var(--muted);background:#fffeface;max-width:calc(100% - 22px);padding:2px 4px}.panelbottom{padding:10px 12px;border-top:1px solid #e5e9e2;display:flex;justify-content:space-between;align-items:center;gap:8px}.panelbottom button{font-size:10px}.panelbottom label{display:flex;align-items:center;gap:5px;font-size:10px}.panelbottom select{font-size:10px;margin:0;padding:6px;max-width:165px}.panelbottom input{margin:0}.members{display:flex;flex-wrap:wrap;gap:5px;padding:0 12px 9px}.members button{font-size:9px;padding:3px 6px}.members i{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:5px}.viewsettings{border-top:1px solid var(--line);padding:10px 12px}.viewsettings summary{font-size:10px;cursor:pointer}.viewsettings p{font-size:10px;color:var(--muted);margin-top:8px}.viewsettings label{margin-top:9px}.twocol{display:grid;grid-template-columns:1fr 1fr;gap:18px}.legend{display:flex;flex-wrap:wrap;gap:6px 12px;padding:0 12px 8px;font-size:9px;color:var(--muted)}.legend i{width:8px;height:8px;display:inline-block;margin-right:4px;border-radius:2px}.slicecontrols{display:grid;grid-template-columns:1.5fr .9fr 1fr;gap:10px;padding:0 12px 12px}.slicecontrols label select{width:100%;font-size:10px;padding:5px}.pieces{display:flex;gap:12px;font-size:10px}.minus{color:var(--minus)}.plus{color:var(--plus)}.tipbox{padding:0 12px 12px}.tipbox label>span{font-size:9px;float:right}.tipbox input{width:100%;font-family:var(--mono);font-size:11px}.tipactions,.tipchips{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}.tipactions button{font-size:10px}.tipchips button{font:10px var(--mono);padding:5px 7px}.pins{position:absolute;inset:0;pointer-events:none}.pin{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;touch-action:none;border-radius:50%;width:28px;height:28px;padding:0;border:2px solid white;box-shadow:0 1px 5px #162d3844;font-size:11px;font-weight:650;color:white;background:var(--pin);cursor:grab;text-shadow:0 1px 2px #0008}.pin:hover{border-color:white}.pin[aria-pressed=true]{outline:2px solid var(--ink);outline-offset:2px;background:var(--pin)}.pin:active{cursor:grabbing}.selection{margin-top:20px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;border-top:1px solid var(--line);padding:16px 0}.locatorbar{display:flex;gap:6px}.locatorbar button{min-width:36px;border-bottom:3px solid var(--pin);font-weight:600}.numeric{font:11px/1.8 var(--mono);overflow-wrap:anywhere}.pointentry{display:flex;gap:7px;align-items:end}.pointentry input{width:105px;padding:6px 7px;font:11px var(--mono)}.pointentry button{font-size:10px}.pointstatus{grid-column:1/-1;color:var(--muted);font-size:11px;min-height:17px}.recordbox{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 0}.recordbox summary{cursor:pointer;font-size:12px}.recordgrid{display:grid;grid-template-columns:1fr 1fr;gap:25px;padding-top:15px}.mono{font:10px/1.7 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}.recordgrid pre{margin:0;max-height:300px;overflow:auto}.actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.actions button{font-size:10px}#proofStatus{font-size:11px;color:var(--muted);margin-top:12px}.methods{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-top:36px}.methods h2{margin-bottom:12px;font-size:20px}.methods p:not(.eyebrow){font-size:11px;line-height:1.9;color:#53666d;margin:10px 0}.methods p.formula{font:18px/1.8 Georgia,serif;color:var(--ink)}footer{text-align:center;border-top:1px solid var(--line);padding:20px;color:var(--muted);font-size:10px}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);max-width:90vw;background:var(--ink);color:white;border-radius:6px;padding:10px 18px;z-index:200;font-size:12px}#atlas{cursor:grab}#slice{cursor:crosshair}#fractal{cursor:grab}
@media(min-width:1650px){.stage{aspect-ratio:1.02}.panelhead h2{font-size:19px}.panelhead{padding:19px 18px 13px}.panelbottom{padding:12px 16px}.tipbox{padding:0 16px 15px}}
@media(max-width:1180px){main{padding:24px 20px}.workspace{gap:12px}.panelhead h2{font-size:14px}.panelbottom{flex-wrap:wrap}.familyline>label{max-width:200px}.selection{grid-template-columns:auto 1fr}.pointentry{grid-column:1/-1}.familybar{flex-wrap:wrap}.searchfield{flex:1}.familyfield{flex:1.8}.familyline{flex-wrap:wrap}.numeric{font-size:10px}.methods{gap:28px}.tipbox label>span{float:none;display:block}}
@media(max-width:840px){.workspace{grid-template-columns:1fr 1fr}.specimen-panel{grid-column:1/-1;display:grid;grid-template-columns:1.2fr 1fr;align-items:start}.specimen-panel .panelhead{grid-column:1/-1}.specimen-panel .stage{grid-row:2/span 2;aspect-ratio:1.5}.specimen-panel .panelbottom{grid-column:2;border-top:0}.specimen-panel .tipbox{grid-column:2}.stage{aspect-ratio:1.1}nav{gap:12px}.familybar label{flex:1 1 25%}.familybar .familyfield{flex:1 1 55%}.intro{align-items:start}.intro #boot{display:none}.methods{grid-template-columns:1fr}}
@media(max-width:580px){header{padding:14px 16px;align-items:start;flex-direction:column;gap:12px}nav{gap:12px;flex-wrap:wrap;font-size:11px}nav button{font-size:10px}main{padding:20px 14px}.familybar{gap:8px}.familybar .searchfield{flex:1 1 100%}.familybar .familyfield{flex:1 1 70%}.familyline{gap:8px}.familyline>div{flex:1 1 100%}.familyline>label{flex:1 1 100%;max-width:none}.familyline h2{font-size:21px}.workspace{grid-template-columns:1fr;gap:18px}.specimen-panel{display:block;grid-column:auto}.specimen-panel .stage{aspect-ratio:1.1}.stage{aspect-ratio:1.05}.panelhead h2{font-size:19px}.tipbox label>span{display:inline;float:right}.panelbottom{flex-wrap:nowrap}.selection{gap:12px}.numeric{font-size:9px}.pointentry{flex-wrap:wrap}.pointentry input{width:105px}.recordgrid{grid-template-columns:1fr}.pin{width:34px;height:34px}.methods{margin-top:25px}.panelbottom button{min-height:34px}.tipchips button{min-height:32px}.slicecontrols label select{font-size:11px}h1{font-size:29px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}