:root{color-scheme:light;--ink:#234248;--muted:#61736d;--paper:#f7f4eb;--teal:#16776c;--line:#d6dbd0;--orange:#a85427;font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}body{margin:0}main{width:min(1240px,calc(100% - 64px));margin:auto}a{color:var(--teal);text-underline-offset:4px}button{font:inherit;color:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,pre:focus-visible{outline:3px solid var(--orange);outline-offset:5px}
.skip{position:fixed;top:-90px;left:20px;background:white;padding:12px;z-index:10}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:27px 0;border-bottom:1px solid var(--line);font-size:13px}.topbar a{text-decoration:none}.brand{letter-spacing:.12em;font-weight:800;font-size:16px}.brand span{font-weight:400;letter-spacing:.015em;margin-left:9px;color:var(--muted)}
.intro{padding:68px 0 52px;background:radial-gradient(ellipse at 85% 35%,#dce9df80,transparent 55%)}.eyebrow{font-size:11px;letter-spacing:.13em;text-transform:uppercase;font-weight:650;color:var(--teal);margin:0 0 14px}h1,h2,h3,p{margin-top:0}h1{font-family:Georgia,serif;font-weight:400;letter-spacing:-.045em;line-height:1.05;font-size:clamp(40px,5.3vw,69px);margin-bottom:22px}h1 em{font-weight:400;color:var(--teal)}.lead{max-width:800px;font-size:18px;line-height:1.7;color:#50645e;margin-bottom:25px}.intro-meta{display:flex;gap:24px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.intro-meta span:before{content:"";display:inline-block;width:5px;height:5px;background:var(--teal);border-radius:50%;margin:0 9px 2px 0}
.gallery-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:14px 0 23px}.gallery-heading h2{font-size:18px;font-weight:500;margin:0}.filters{display:flex;gap:6px;flex-wrap:wrap}.filters button{border:1px solid var(--line);background:transparent;border-radius:30px;padding:7px 16px;font-size:12px}.filters button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:white}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.demo-card{display:flex;flex-direction:column;color:inherit;text-decoration:none;border:1px solid var(--line);border-radius:10px;background:#fffdf6;overflow:hidden;transition:transform .15s ease,border-color .15s ease}.demo-card:hover{transform:translateY(-4px);border-color:var(--teal)}.demo-card[hidden]{display:none}.thumbnail{position:relative;background:#fcfaf4;border-bottom:1px solid var(--line);padding:12px}.thumbnail img{display:block;width:100%;height:auto;aspect-ratio:700/440}.card-number{position:absolute;left:18px;top:15px;font-size:10px;letter-spacing:.1em;color:var(--muted)}.card-copy{padding:23px;flex:1;display:flex;flex-direction:column}.card-copy .eyebrow{font-size:10px;margin-bottom:10px}.card-copy h2{font-family:Georgia,serif;font-weight:400;font-size:25px;letter-spacing:-.025em;line-height:1.15;margin-bottom:13px}.card-copy p{font-size:14px;color:var(--muted);margin-bottom:24px}.card-link{margin-top:auto;font-size:12px;color:var(--teal);display:flex;justify-content:space-between}
.about{margin:52px 0 0;padding:32px 36px;border-left:3px solid var(--teal);background:#eaf0e7;max-width:920px}.about h2{font:400 27px/1.25 Georgia,serif}.about p{max-width:760px;color:#52675e;font-size:14px}.about p:last-child{margin-bottom:0}
footer{padding:42px 0 34px;margin-top:30px;border-top:1px solid var(--line);font-size:12px;line-height:1.9;color:var(--muted)}footer a{display:inline-block;margin-top:8px}
.demo-intro{position:relative;padding:45px 190px 12px 0}.demo-intro h1{font-size:clamp(35px,4.6vw,54px);max-width:880px}.demo-intro .lead{font-size:17px;max-width:830px}.syntax-button{position:absolute;right:0;top:51px;border:1px solid var(--teal);background:var(--teal);color:white;border-radius:7px;padding:11px 16px;font-size:13px}.syntax-button span{margin-right:7px;opacity:.8}
.steps{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 22px}.steps button{background:transparent;border:1px solid var(--line);border-radius:6px;padding:10px 14px;font-size:13px}.steps button span{margin-right:9px;font-size:10px;opacity:.65}.steps button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}
.experiment-layout{display:grid;grid-template-columns:1.5fr 1fr;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fffdf8}.visual{margin:0;display:flex;flex-direction:column;background:#fcfaf4;min-width:0;justify-content:center}.visual svg{display:block;width:100%;height:auto}.visual figcaption{border-top:1px solid var(--line);padding:14px 23px;font-size:13px;color:var(--muted);margin-top:auto}.explanation{padding:32px 29px;border-left:1px solid var(--line);min-width:0}.explanation h2{font:400 30px/1.15 Georgia,serif;letter-spacing:-.025em;margin-bottom:16px}.explanation>p:not(.eyebrow){font-size:15px;line-height:1.7;color:#52665e}.readout{background:#eaf0e7;border-left:3px solid var(--teal);padding:14px 17px;margin:23px 0}.readout span,.retained>span{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.readout strong{display:block;font-size:20px;line-height:1.4;font-weight:550;margin-top:7px}.retained p{font-size:13px;color:var(--muted);margin:7px 0 0}.step-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:16px 0}.display-note{font-size:11px;color:var(--muted)}.step-paging{display:flex;gap:6px;flex-shrink:0}.step-paging button,.syntax-actions button,#close-syntax{border:1px solid var(--line);border-radius:6px;background:#fffdf8;padding:8px 13px;font-size:12px}button:disabled{opacity:.4;cursor:default}.validation{border:1px solid var(--line);border-radius:8px;padding:17px 21px;margin-top:13px;font-size:13px;color:var(--muted)}.validation summary{cursor:pointer;color:var(--ink);font-weight:500}.validation p{max-width:960px;margin:18px 0}.source-links{display:flex;gap:22px;flex-wrap:wrap}.next-experiment{display:flex;flex-direction:column;align-items:flex-start;padding:28px 0 0;text-decoration:none}.next-experiment .eyebrow{margin-bottom:6px}.next-experiment strong{font:400 24px/1.3 Georgia,serif}
dialog{width:min(1050px,calc(100% - 36px));max-height:90dvh;border:1px solid var(--line);border-radius:12px;padding:0;background:#fbfaf4;color:var(--ink);box-shadow:0 24px 100px #163c4250;overflow:auto}dialog::backdrop{background:#183c48a6;backdrop-filter:blur(3px)}.dialog-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fbfaf4;padding:23px 27px 16px;border-bottom:1px solid var(--line);z-index:1}.dialog-head .eyebrow{margin-bottom:6px}.dialog-head h2{font:400 24px/1.2 Georgia,serif;overflow-wrap:anywhere;margin:0}.dialog-head>button{flex-shrink:0}.syntax-focus,.syntax-note{margin:18px 27px 0;max-width:880px;font-size:14px}.syntax-note{font-size:12px;color:var(--muted);margin-top:8px}.syntax-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:18px 27px;font-size:12px}.syntax-actions #copy-status{color:var(--teal)}pre{margin:0;padding:24px 27px 35px;background:#17373d;color:#ecf4e5;overflow:auto;font:13px/1.8 Consolas,"Cascadia Code",monospace;tab-size:2}code{font:inherit}.noscript{padding:20px}
@media(max-width:960px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.explanation{padding:26px 23px}.explanation h2{font-size:27px}.experiment-layout{grid-template-columns:1.25fr 1fr}}
@media(max-width:740px){main{width:calc(100% - 32px)}.topbar{padding:20px 0;font-size:11px}.intro{padding:40px 0 30px}.intro-meta{gap:9px 18px}.lead{font-size:16px}.gallery-heading{align-items:flex-start;flex-direction:column}.cards{gap:16px}.card-copy{padding:19px}.card-copy h2{font-size:23px}.demo-intro{padding:32px 0 0}.demo-intro .lead{font-size:16px}.syntax-button{position:static;margin-bottom:10px}.steps{gap:6px}.steps button{font-size:12px;padding:9px 11px}.experiment-layout{grid-template-columns:1fr}.explanation{border-left:0;border-top:1px solid var(--line);padding:24px}.visual svg{max-height:400px}.step-footer{align-items:flex-start;flex-direction:column-reverse}.step-paging{align-self:flex-end}.about{padding:25px}.dialog-head{padding:18px}.syntax-focus,.syntax-note{margin-left:18px;margin-right:18px}.syntax-actions{margin-left:18px;margin-right:18px}.dialog-head h2{font-size:21px}pre{padding:20px 18px;font-size:12px}}
@media(max-width:490px){.cards{grid-template-columns:1fr}.thumbnail{padding:8px 14px}.intro-meta{flex-direction:column}.filters button{padding:6px 12px}.topbar .brand{font-size:14px}.brand span{margin-left:4px}.topbar{gap:10px}.steps button span{margin-right:6px}.card-copy h2{font-size:26px}.visual figcaption{padding:12px 18px}.source-links{gap:12px}.syntax-actions{gap:13px}.dialog-head h2{font-size:18px}.explanation h2{font-size:29px}}
.card-copy h3{font:400 25px/1.15 Georgia,serif;letter-spacing:-.025em;margin:0 0 13px}
.notebook-index .intro{padding:24px 0 10px;background:none}.notebook-index h1{font-size:clamp(30px,3.5vw,46px);margin-bottom:10px}.notebook-index .lead{font-size:15px;margin-bottom:8px}.notebook-index .gallery-heading{margin:8px 0 14px}.notebook-index .gallery-heading p{font-size:12px;color:var(--muted);margin:0}.featured .cards{gap:16px}.featured .thumbnail{padding:8px 22px}.featured .thumbnail img{height:138px;object-fit:contain;aspect-ratio:auto}.featured .card-copy{padding:14px 18px}.featured .card-copy h3{font-size:23px;margin-bottom:7px}.featured .card-copy .eyebrow{margin-bottom:5px;font-size:9px}.featured .card-copy p{font-size:13px;line-height:1.5;margin-bottom:9px}.featured .card-link{font-size:11px}
.extras{margin-top:36px;padding-top:22px;border-top:1px solid var(--line)}.extras .gallery-heading h2{font:400 28px/1.3 Georgia,serif;margin-bottom:6px}.extras .cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.extras .demo-card{display:grid;grid-template-columns:100px minmax(0,1fr);align-items:center}.extras .thumbnail{padding:8px;border:0;background:transparent}.extras .card-copy{padding:14px 14px 14px 0}.extras .card-copy h3{font-size:18px;margin-bottom:6px}.extras .card-copy p{font-size:12px;line-height:1.5;margin-bottom:0}.extras .eyebrow{font-size:8px;margin-bottom:5px}.extras .card-link{display:none}
@media(max-width:960px){.extras .cards{grid-template-columns:repeat(2,minmax(0,1fr))}.featured .thumbnail img{height:150px}}
@media(max-width:740px){.notebook-index .intro{padding:24px 0 12px}.notebook-index .gallery-heading{gap:12px}.featured .card-copy h3{font-size:22px}.extras .cards{grid-template-columns:1fr}.extras .demo-card{grid-template-columns:96px minmax(0,1fr)}}
@media(max-width:490px){.featured .thumbnail img{height:170px}.featured .card-copy{padding:17px 20px}.featured .card-copy h3{font-size:25px}.featured .card-copy p{font-size:14px}.notebook-index .lead{font-size:14px}}
.notebook-index [hidden]{display:none!important}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}