:root{--paper:#fff;--white:#fff;--ink:#242424;--muted:#6b6b6b;--line:#e9e9e9;--orange:#176b43;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;--display:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--body:var(--display)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{color:var(--ink);font:16px/1.6 var(--body);background:#fff;margin:0}a{color:inherit;text-decoration:none}a:hover{text-underline-offset:3px;text-decoration:underline}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button,a,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--orange);outline-offset:4px}[hidden]{display:none!important}h1,h2,h3,h4{letter-spacing:-.025em;margin:0;font-weight:650;line-height:1.2}p{margin:0 0 1em}img{max-width:100%;height:auto}svg{vertical-align:middle;flex-shrink:0}.wrap{width:min(1120px,100% - 64px);margin-inline:auto}.mono{font:12px var(--mono)}.eyebrow{color:var(--muted);text-transform:none;letter-spacing:0;font-size:13px}.skip-link{color:#fff;z-index:100;background:#242424;padding:10px;position:fixed;top:-70px;left:15px}.skip-link:focus{top:10px}.site-header{border-bottom:1px solid var(--line);align-items:center;gap:36px;min-height:88px;display:flex}.brand{letter-spacing:-1px;white-space:nowrap;align-items:baseline;gap:16px;font:700 30px Georgia,serif;display:flex}.site-header nav{gap:25px;margin-left:auto;font-size:14px;display:flex}.header-actions{align-items:center;display:flex}.search-trigger{color:var(--muted);align-items:center;gap:8px;font-size:13px;display:flex}.icon-button{background:0 0;border:0;justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}.menu-button{display:none}.site-footer{border-top:1px solid var(--line);margin-top:60px}.footer-bottom{color:var(--muted);justify-content:space-between;gap:20px;padding-block:27px;font-size:12px;display:flex}.footer-bottom p{margin:0}.footer-bottom nav{flex-wrap:wrap;gap:18px;display:flex}.home-layout{grid-template-columns:minmax(0,730px) 260px;gap:85px;padding-top:58px;display:grid}.home-intro{padding-bottom:40px}.home-intro h1{letter-spacing:-1.3px;max-width:600px;margin-bottom:16px;font:700 40px/1.15 Georgia,serif}.home-intro p{color:var(--muted);max-width:580px;font-size:17px}.home-sidebar{border-left:1px solid var(--line);padding-left:30px}.home-sidebar h2{margin:8px 0 12px;font-size:16px}.home-sidebar h2:not(:first-child){margin-top:35px}.home-sidebar p,.home-sidebar li,.home-sidebar>a{font-size:14px}.home-sidebar p{color:var(--muted)}.home-sidebar>a{color:var(--orange)}.home-sidebar ul{padding:0;list-style:none}.home-sidebar li{margin-bottom:12px}.home-sidebar .small-note{margin-top:40px;font-size:12px}.section-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:0;padding-bottom:17px;display:flex}.section-heading h2{font-size:20px}.section-heading>a{color:var(--muted);font-size:13px}.card-grid{display:block}.article-card{border-bottom:1px solid var(--line);max-width:760px;padding:28px 0}.card-meta{color:var(--muted);justify-content:space-between;gap:18px;margin-bottom:11px;font-size:12px;display:flex}.article-card h3{letter-spacing:-.5px;margin-bottom:9px;font-size:24px;line-height:1.25}.article-card p{color:#616161;max-width:680px;margin:0;font:17px/1.6 Georgia,serif}.section{padding-block:40px}.button{background:#fff;border:1px solid #aaa;border-radius:4px;justify-content:center;align-items:center;gap:12px;min-height:44px;padding:9px 17px;font-size:14px;display:inline-flex}.button.primary{color:#fff;background:#242424;border-color:#242424}.text-link{color:var(--orange);align-items:center;gap:10px;font-size:14px;display:inline-flex}.small-note{color:var(--muted);font-size:12px}.page-intro{padding-top:48px;padding-bottom:16px}.page-intro h1{max-width:800px;margin:15px 0 18px;font-size:42px}.page-intro>p{max-width:720px;color:var(--muted);font-size:17px}.breadcrumb{color:var(--muted);gap:10px;margin-bottom:26px;font-size:12px;display:flex}.guides-section{padding-bottom:30px}.search-field{border:1px solid #bdbdbd;border-radius:3px;align-items:center;gap:12px;max-width:760px;margin:25px 0;padding:0 16px;display:flex}.search-field input{background:0 0;border:0;width:100%;min-width:0;min-height:50px;font-size:15px}.filter-row{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;padding-bottom:15px;display:flex}.filter-tabs{flex-wrap:wrap;gap:5px;display:flex}.filter-tabs button{color:var(--muted);background:0 0;border:0;border-bottom:2px solid #0000;border-radius:0;min-height:42px;padding:8px 12px;font-size:13px}.filter-tabs button[aria-pressed=true]{color:#242424;border-color:#242424}.filter-tools{color:var(--muted);align-items:center;gap:18px;font-size:12px;display:flex}.filter-tools select{background:#fff;border:1px solid #ccc;margin-left:6px;padding:6px}#result-count{color:var(--muted);font-size:12px}.no-results{padding:40px 0}.no-results h2{margin-bottom:14px;font-size:24px}.article-top{max-width:720px;margin-inline:auto;padding-top:35px}.article-heading h1{letter-spacing:-1.3px;margin:16px 0;font-size:43px;line-height:1.13}.article-description{color:var(--muted);margin-bottom:26px;font-size:21px;line-height:1.5}.article-byline{color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;font-size:12px;display:flex}.article-byline strong{color:var(--ink);font-weight:500}.author-avatar{background:#f2f2f2;border-radius:50%;place-items:center;width:34px;height:34px;font-size:11px;display:grid}.article-tools{border-block:1px solid var(--line);gap:20px;margin-top:23px;padding:9px 0;display:flex}.save-button{color:var(--muted);background:0 0;border:0;align-items:center;gap:8px;min-height:35px;padding:3px 0;font-size:12px;display:inline-flex}.save-button[aria-pressed=true]{color:var(--orange)}.article-layout{max-width:720px;margin:0 auto;padding-top:33px;padding-bottom:40px;display:block}.article-sidebar{display:none}.prose,.plain-content{overflow-wrap:break-word;font:20px/1.75 Georgia,Times New Roman,serif}.prose p{margin:0 0 27px}.prose h2{font:650 29px/1.25 var(--body);letter-spacing:-.6px;margin:45px 0 19px}.prose h3{font:650 23px/1.3 var(--body);margin:32px 0 15px}.prose a,.plain-content a{color:inherit;text-underline-offset:3px;text-decoration:underline}.prose ul,.prose ol{margin:20px 0 30px;padding-left:27px}.prose li{margin-bottom:10px;padding-left:4px}.prose blockquote{color:#555;border-left:3px solid #242424;margin:30px 0;padding:2px 0 2px 22px;font-style:italic}.prose blockquote p:last-child{margin:0}.prose pre{font:13px/1.7 var(--mono);border-radius:0;margin:27px 0;padding:32px 18px 20px;position:relative;overflow:auto}.prose pre code{font-family:var(--mono)}.prose :not(pre)>code{font:.78em var(--mono);overflow-wrap:anywhere;background:#f3f3f3;padding:2px 4px}.copy-button{color:#fff;font:11px var(--body);background:#333;border:1px solid #777;padding:3px 8px;position:absolute;top:5px;right:7px}.prose table{border-collapse:collapse;width:100%;font:14px/1.6 var(--body);margin:28px 0;display:block;overflow:auto}.prose th,.prose td{text-align:left;vertical-align:top;border-bottom:1px solid #ddd;padding:12px 10px}.prose th{background:#fafafa;font-weight:600}.prose hr{border:0;border-top:1px solid var(--line);margin:35px 0}.prose img{border:0;border-radius:0;width:100%;display:block}.image-zoom{cursor:zoom-in;background:0 0;border:0;width:100%;margin:30px 0 12px;padding:0;display:block}.prose .image-caption,.prose img+p:has(em:only-child){font:12px/1.6 var(--body);color:var(--muted);margin-bottom:30px}.sources-box{border-top:1px solid var(--line);margin-top:38px;padding-top:25px}.sources-box h2{margin-bottom:15px;font-size:22px}.sources-box ul{padding-left:20px;font-size:14px;line-height:1.8}.sources-box a{text-decoration:underline}.source-method{color:var(--muted);font-size:12px}.article-next{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;margin-top:32px;padding-top:25px;display:flex}.article-next .mono{color:var(--muted);font:12px var(--body)}.article-next h3{margin:9px 0;font-size:23px}.reading-track{z-index:50;pointer-events:none;height:2px;position:fixed;top:0;left:0;right:0}.reading-track>div{transform-origin:0;background:#777;height:100%;transform:scaleX(0)}.plain-content{max-width:720px;margin-inline:auto;padding-bottom:35px}.plain-content h2{font:650 27px/1.3 var(--body);margin:35px 0 16px}.plain-content p,.plain-content li{color:#333}.resource-grid{max-width:760px}.resource-item{border-bottom:1px solid var(--line);padding:28px 0}.resource-item h2{margin:11px 0;font-size:25px}.resource-item p{color:var(--muted)}.learning-path{border-top:1px solid var(--line);max-width:800px;padding:32px 0}.learning-path>.mono{color:var(--muted);margin-bottom:14px;display:block}.learning-path h2{margin-bottom:13px;font-size:28px}.learning-path p{color:var(--muted);max-width:650px}.learning-path ol{padding-left:22px}.learning-path li{padding:8px 0}.demo-widget{border-block:1px solid var(--line);font:14px var(--body);margin:25px 0;padding:24px 0}.demo-widget label{margin-bottom:12px;display:block}.demo-widget input{accent-color:#333;width:100%}.demo-widget output{font:30px var(--mono);margin-top:14px;display:block}.demo-widget p{font:14px/1.6 var(--body);margin-top:15px}#toast{color:#fff;z-index:100;opacity:0;pointer-events:none;background:#242424;max-width:90vw;padding:12px 20px;font-size:13px;position:fixed;bottom:25px;left:50%;transform:translate(-50%)}#toast.visible{opacity:1}#image-dialog{background:#fff;border:0;width:1200px;max-width:96vw;max-height:95vh;padding:50px 20px 20px}#image-dialog::backdrop{background:#000c}#image-dialog img{object-fit:contain;width:auto;max-width:100%;max-height:76vh;margin:auto;display:block}#image-dialog p{color:var(--muted);text-align:center;margin:15px 0 0;font-size:12px}.dialog-close{position:absolute;top:4px;right:4px}@media (width<=1000px){.home-layout{grid-template-columns:minmax(0,1fr) 230px;gap:45px}.site-header{gap:25px}.site-header nav{gap:20px}.search-trigger span{display:none}}@media (width<=760px){.wrap{width:calc(100% - 40px)}.site-header{justify-content:space-between;min-height:74px;position:relative}.brand{font-size:28px}.header-actions{gap:12px}.menu-button{display:inline-flex}.site-header nav{border-bottom:1px solid var(--line);z-index:10;background:#fff;flex-direction:column;gap:0;margin:0;padding:15px 20px;display:none;position:absolute;top:73px;left:-20px;right:-20px}.site-header nav.open{display:flex}.site-header nav a{padding:10px 0}.home-layout{padding-top:35px;display:block}.home-intro h1{font-size:35px}.home-sidebar{border:0;border-top:1px solid var(--line);margin-top:35px;padding:30px 0 0}.home-intro{padding-bottom:25px}.article-card h3{font-size:22px}.page-intro{padding-top:33px}.page-intro h1{font-size:35px}.article-heading h1{letter-spacing:-.8px;font-size:35px}.article-description{font-size:19px}.prose,.plain-content{font-size:18px;line-height:1.75}.prose h2{font-size:26px}.prose h3{font-size:22px}.article-byline{gap:10px}.article-byline>span:last-child{display:none}.article-layout{padding-top:28px}.footer-bottom{flex-direction:column}.filter-row{align-items:flex-start}.filter-tabs button{padding-inline:8px;font-size:12px}.filter-tools{justify-content:space-between;width:100%}.section-heading h2{font-size:19px}.section-heading>a{font-size:12px}.card-meta{font-size:11px}.article-tools{gap:15px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.fixture-source{font:13px/1.8 var(--mono);background:#fafafa;padding:18px 10px;overflow:auto}.fixture-line{white-space:pre}.fixture-line i{text-align:right;color:#888;width:30px;margin-right:18px;font-style:normal;display:inline-block}.fixture-line.focus{font-weight:700}.fixture-nav{font:13px var(--body);flex-wrap:wrap;gap:12px;margin:25px 0;display:flex}.fixture-nav [aria-current=page]{font-weight:700}.article-page{max-width:720px}.article-page .article-top{padding-top:55px}.article-page .section{padding-top:28px}.article-page .article-byline{padding-top:5px}@media (width<=760px){.article-page .article-top{padding-top:35px}}