@font-face{font-family:Unbounded;src:url(/fonts/unbounded.woff2) format("woff2");font-weight:400 700;font-display:swap}@font-face{font-family:"Source Serif 4";src:url(/fonts/source-serif-4.woff2) format("woff2");font-weight:400 600;font-display:swap}:root{--paper:#F8F4F8;--sheet:#FFFFFF;--accent:#EBD9E5;--ink:#30232F;--primary:#742C4C;--secondary:#285C61;--primary-soft:#D7A5BF;--secondary-soft:#AAD2D1;--display:Unbounded,sans-serif;--text:"Source Serif 4",serif;--s0:18px;--s1:22.5px;--s2:28.125px;--s3:35.15625px;--s4:43.9453125px;--s5:54.931640625px;--s6:68.66455078125px;--r-surface:0px;--r-control:8px;--r-pill:999px;--line:var(--primary-soft);--focus:var(--primary);color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--sheet);color:var(--ink);font:400 var(--s0)/1.6 var(--text)}[hidden]{display:none!important}h1,h2,h3,p,figure{margin:0}h1,h2,h3,.display{font-family:var(--display);font-weight:600;letter-spacing:-.04em;line-height:1.18;text-wrap:balance}h1{font-size:clamp(var(--s3),4.8vw,var(--s6))}h2{font-size:clamp(var(--s2),3vw,var(--s4))}h3{font-size:var(--s1)}p+p{margin-top:16px}a{color:inherit;text-underline-offset:5px;text-decoration-thickness:2px}a:hover{text-decoration-thickness:3px}button,input{font:inherit}button,summary{cursor:pointer}:focus-visible,[data-state=focus]{outline:3px solid var(--focus);outline-offset:4px}.wrap{width:min(1200px,calc(100% - 32px));margin:auto}.plum{background:var(--primary);color:var(--sheet);--focus:var(--sheet)}.petrol{background:var(--secondary);color:var(--sheet);--focus:var(--sheet);--line:var(--secondary-soft)}.white{background:var(--sheet);color:var(--ink);--focus:var(--primary)}.label,.brand{font-family:var(--display);font-size:18px;line-height:1.5;font-weight:500}.brand{max-width:14ch;font-weight:600;letter-spacing:-.04em;line-height:1.25}.brand-sign{display:flex;gap:16px;align-items:center;text-decoration:none;min-height:48px}.fork{width:40px;height:40px;flex:none;color:inherit}.masthead{padding:24px 0;border-bottom:1px solid var(--line)}.masthead>.wrap:first-child{display:flex;align-items:center;justify-content:space-between;gap:16px}.desktop-link{display:none}.nav-links{display:grid;gap:8px;margin-top:24px}.nav-links a,.text-link,.reading-nav a{min-height:44px;display:flex;align-items:center}.nav-links a{font-size:18px}.skip{position:absolute;top:0;left:16px;transform:translateY(-200%);background:var(--sheet);padding:16px;color:var(--ink);z-index:5}.skip:focus{transform:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:48px;border:2px solid var(--primary);border-radius:var(--r-control);padding:12px 24px;background:var(--primary);color:var(--sheet);font:500 18px/1.4 var(--display);text-decoration:none}.btn.secondary{background:var(--sheet);color:var(--primary)}.btn:hover,.btn[data-state=hover]{background:var(--ink);color:var(--sheet);border-color:var(--ink)}.btn:active,.btn[data-state=active]{background:var(--secondary);color:var(--sheet)}.btn:disabled{background:var(--sheet);color:var(--ink);border-color:var(--ink);border-style:dashed;cursor:not-allowed}.btn.inverse{background:var(--sheet);color:var(--primary);border-color:var(--sheet)}.btn.ghost{background:transparent;color:inherit;border-color:currentColor}.opening{display:grid;gap:32px;padding:40px 0 48px}.opening h1{margin:24px 0}.opening h1 span{color:var(--primary)}.lead{font-size:var(--s1);max-width:42ch;line-height:1.5}.opening .btn{margin-top:24px}.opening-aside{padding:32px 24px;display:flex;flex-direction:column;justify-content:space-between;gap:32px}.opening-aside>.label{font-size:var(--s2);letter-spacing:-.04em;line-height:1.3}.opening-aside a{align-items:end}.module{padding:40px 0 64px;border-top:1px solid var(--line)}.module-head{display:grid;gap:24px}.module-head h2{margin-top:16px}.complete-reading,.measure{max-width:68ch}.module-head .complete-reading{font-size:18px}.stack{display:grid;gap:24px}.gap{margin-top:32px}.large-gap{margin-top:48px}.experiment{margin-top:32px;display:grid;gap:24px}.experiment-controls{padding:24px;align-self:start}.experiment-graph{min-width:0}fieldset{padding:0;border:0;margin:0;min-width:0}legend{padding:0;margin-bottom:24px}label{display:block}input{color:var(--ink);background:var(--sheet)}.control-number{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:16px}.number{width:120px;min-height:48px;padding:8px 16px;border:2px solid var(--sheet);border-radius:var(--r-control);font:500 var(--s1)/1.3 var(--display)}.controls{display:grid;gap:16px}.slider{display:block;width:100%;height:48px;accent-color:var(--secondary-soft);cursor:ew-resize}.control-hint{margin-top:8px}.legend{display:flex;gap:16px 24px;flex-wrap:wrap}.key{display:flex;gap:8px;align-items:center}.key:before{content:"";width:32px;border-top:4px solid var(--primary);flex:none}.key.modified:before{border-top:4px dashed var(--secondary)}.reference{color:var(--primary)}.modified{color:var(--secondary)}.plot{margin-top:16px}.plot svg{width:100%;height:304px;display:block;background:var(--sheet)}.axis{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:8px}.plot figcaption{font-size:18px;margin-top:16px}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}.value{font-family:var(--display);font-size:clamp(var(--s1),2.5vw,var(--s3));letter-spacing:-.06em;white-space:nowrap;font-weight:500;line-height:1.3;margin-top:8px}.difference{margin-top:24px;padding:24px;display:grid;gap:8px}.difference strong{font:500 var(--s4)/1.2 var(--display);letter-spacing:-.06em}.difference+p{margin-top:8px}.error{margin-top:24px;border:2px solid var(--sheet);padding:16px}.disclaimer{margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}.conventions{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:16px}.method{margin-top:32px}.formula{font-size:var(--s1);overflow-wrap:anywhere}.no-js-note{margin-top:24px}.sr-only{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.directory{padding:48px 0 64px;display:grid;gap:32px}.directory-heading{align-self:start}.directory-heading h2{margin:24px 0}.category-entry{padding:32px 0;border-top:1px solid var(--line)}.category-entry h3{max-width:26ch}.category-entry p{margin-top:16px}.category-entry .text-link{margin-top:16px;max-width:48ch}.article-opening{padding:24px 0 64px}.breadcrumb{display:flex;align-items:center;gap:8px 16px;flex-wrap:wrap;margin-bottom:32px}.breadcrumb a{display:inline-flex;align-items:center;min-height:44px}.article-opening h1{max-width:20ch;margin:24px 0 32px}.byline{display:flex;flex-wrap:wrap;gap:8px 16px}.article-opening .lead{margin-top:24px}.reading-nav{display:flex;flex-wrap:wrap;gap:8px 32px;padding-top:24px;padding-bottom:24px;border-bottom:1px solid var(--line)}.specimen{padding-top:24px;padding-bottom:24px}.continuation{display:grid;gap:32px;padding:48px 0 64px}.continuation h2{margin-top:24px}.foot{padding:48px 0}.foot .wrap{display:grid;gap:32px}.foot p{max-width:48ch}details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0}summary{min-height:48px;font:500 18px/1.5 var(--display);padding:8px 0;list-style:none;display:flex;align-items:center;gap:14px}summary::-webkit-details-marker{display:none}summary:before{content:"";flex:none;width:9px;height:9px;margin-left:3px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(-45deg)}details[open]>summary:before{transform:rotate(45deg)}details[open]>summary{margin-bottom:16px}table{border-collapse:collapse;width:100%;max-width:68ch;table-layout:fixed}#data-table table{max-width:none}.directory.article-directory{grid-template-columns:1fr;gap:24px}.article-directory .directory-heading{position:static}.article-directory .article-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:32px}th,td{padding:12px 8px;text-align:right;border-bottom:1px solid var(--line);font-size:18px;font-variant-numeric:tabular-nums}th:first-child,td:first-child{text-align:left;width:22%}caption{text-align:left;margin:16px 0}@media(min-width:800px){.wrap{width:min(1200px,calc(100% - 96px))}.nav-links{grid-template-columns:repeat(4,1fr);gap:24px}.nav-links a{font-size:18px;line-height:1.4;text-decoration:none}.desktop-link{display:flex;align-items:center;min-height:48px}.opening{grid-template-columns:1fr 304px;gap:64px;padding:64px 0 80px;align-items:start}.opening-title{padding-top:32px}.opening-aside{margin-top:96px;min-height:320px;padding:32px}.module-head{grid-template-columns:1fr 1fr;gap:64px;align-items:start}.experiment{grid-template-columns:288px minmax(0,1fr);gap:48px}.experiment-controls{position:sticky;top:24px}.plot svg{height:400px}.difference{grid-template-columns:1fr auto;align-items:center}.difference strong{grid-column:2;grid-row:1/3;font-size:var(--s5)}.directory{grid-template-columns:1fr 1fr;gap:64px}.directory-heading{position:sticky;top:32px;padding-top:32px}.article-opening{padding-bottom:80px}.article-opening h1{font-size:var(--s6)}.continuation,.foot .wrap,.section-head,.columns{grid-template-columns:1fr 1fr;gap:64px}.conventions{grid-template-columns:1fr 1fr;gap:16px 48px;max-width:1000px}.method{margin-left:auto}}@media(max-width:420px){.btn{padding:12px 16px}.brand-sign{gap:8px}.fork{width:32px}}@media(prefers-reduced-motion:no-preference){a,button,summary{transition:background-color .18s,color .18s,text-decoration-thickness .18s}.btn:active{transform:translateY(2px)}.opening-title,.article-opening h1{animation:arrive .5s both}.opening-aside{animation:arrive .65s both}.arriving{animation:section-arrive .48s cubic-bezier(.2,.8,.2,1)}@keyframes section-arrive{0%{transform:translateY(12px)}to{transform:none}}.category-entry a{transition:transform .18s}.category-entry a:hover{transform:translate(4px)}html{scroll-behavior:smooth}.btn{transition:background-color .18s,color .18s,border-color .18s,transform .12s}.btn:hover{transform:translateY(-1px)}summary:before{transition:transform .28s cubic-bezier(.4,0,.2,1)}.text-link,.breadcrumb a{transition:color .18s,text-decoration-thickness .18s}@supports (interpolate-size:allow-keywords){:root{interpolate-size:allow-keywords}details::details-content{block-size:0;overflow:clip;transition:block-size .34s cubic-bezier(.4,0,.2,1),content-visibility .34s allow-discrete}details[open]::details-content{block-size:auto}}@keyframes arrive{0%{transform:translateY(16px)}to{transform:translateY(0)}}}a:not(.btn):is(:hover,:focus-visible),summary:is(:hover,:focus-visible){text-decoration-line:underline;text-decoration-thickness:3px;text-underline-offset:5px}summary:before{border-color:currentColor}input:not(:disabled):hover{outline:2px solid currentColor;outline-offset:3px}:where([id]){scroll-margin-top:24px}@media(prefers-reduced-motion:no-preference){.brand-sign .fork{transition:transform .2s}.brand-sign:is(:hover,:focus-visible) .fork{transform:translate(4px)}.text-link,.reading-nav a,.nav-links a{transition:transform .18s,text-decoration-thickness .18s}.text-link:is(:hover,:focus-visible),.reading-nav a:is(:hover,:focus-visible),.nav-links a:is(:hover,:focus-visible){transform:translate(4px)}.nav-links:not([hidden]){animation:section-arrive .24s ease-out}.difference strong{transition:transform .16s}.updating .difference strong{transform:translate(4px)}#modified-path,#delta-path{transition:stroke-width .16s}.updating #modified-path,.updating #delta-path{stroke-width:5px}input{transition:outline-offset .18s}}.paired-plots{display:grid;gap:32px}.paired-plots h3{min-height:56px}.delta{order:0}.delta-drawing{position:relative;padding-left:88px}.delta-scale{position:absolute;inset:0 auto 0 0;width:80px}.delta-scale span{position:absolute;right:0;transform:translateY(-50%);font-variant-numeric:tabular-nums}.delta-scale span:nth-child(1){top:8.3333%}.delta-scale span:nth-child(2){top:36.1111%}.delta-scale span:nth-child(3){top:91.6667%}.delta .axis{margin-left:88px}.plot h3+p{margin:16px 0}.delta-drawing svg{height:304px}.experiment-controls{position:static}.method{padding:32px 24px;max-width:none;margin-top:32px}.method .label{font-size:var(--s2)}.method p{max-width:68ch}.conventions li{padding:16px 0;border-top:2px solid var(--secondary)}.directory-heading{background:var(--primary);color:var(--sheet);padding:32px 24px}.category-entry h3{color:var(--primary)}.category-entry .text-link{font-family:var(--display);font-size:18px;line-height:1.5}.category-entry:has(a:focus-visible){border-color:var(--primary)}@media(min-width:800px){.experiment{grid-template-columns:1fr;gap:32px}.controls{grid-template-columns:1fr 2fr;gap:32px}.experiment-controls{padding:24px 32px}.control-number{margin-top:8px}.paired-plots{grid-template-columns:1fr 1fr;gap:48px}.delta{order:0}.plot svg,.delta-drawing svg{height:352px}.paired-plots h3{min-height:64px}.directory-heading{margin-top:0;padding:40px 32px}.method{width:80%;padding:40px;margin-left:auto}.conventions{max-width:none;grid-template-columns:repeat(3,1fr);gap:24px}.difference{margin-top:32px}}@media(prefers-reduced-motion:no-preference){.slider{transition:filter .18s}.slider:active{filter:brightness(1.3)}.opening-aside{animation:aside-in .9s cubic-bezier(.2,.8,.2,1) both}.category-entry a:hover{transform:translate(8px)}@keyframes aside-in{0%{transform:translateY(56px)}to{transform:none}}}img{max-width:100%;height:auto;display:block}main{min-height:50svh}.article-list{list-style:none;padding:0;margin:0}.article-card>.label{margin-bottom:16px}.article-card h2,.article-card h3{font-size:var(--s1);color:var(--primary)}.article-card h2 a,.article-card h3 a{text-decoration:none}.article-card h2 a:hover,.article-card h3 a:hover{text-decoration:underline}.content-section{padding-top:48px;padding-bottom:64px}.article-opening h2{margin:24px 0 32px}.article-opening a:focus-visible,.directory-heading a:focus-visible{outline-color:var(--sheet)}.post-media{background:var(--sheet)}.post-media img{width:min(100%,1200px);margin:auto;object-fit:cover}.prose{max-width:68ch;margin:auto;font-size:var(--s0);line-height:1.6;background:var(--sheet);color:var(--ink);overflow-wrap:anywhere}.prose h2{font-size:clamp(var(--s2),3vw,var(--s3));margin:48px 0 24px}.prose h3{margin:32px 0 16px}.prose h4,.prose h5,.prose h6{font-family:var(--display);font-size:var(--s0);line-height:1.5;margin:24px 0 16px}.prose p,.prose ul,.prose ol,.prose figure{margin-bottom:24px}.prose a{color:var(--primary)}.prose img{height:auto}.prose iframe,.prose video{max-width:100%}.prose blockquote{border:0;padding:24px 0;margin:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.prose table{table-layout:auto;display:block;overflow-x:auto}.prose code,.prose pre{font-family:var(--text);white-space:pre-wrap}.prose :where(p,li,blockquote,table,th,td,figcaption,h2,h3,h4,h5,h6,pre){background-color:var(--sheet);color:var(--ink)}.breadcrumb [aria-current]{overflow-wrap:anywhere}.specimen-links{display:flex;flex-wrap:wrap;gap:16px 32px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}