:root{color-scheme:light;--ink:#182738;--muted:#59697a;--line:#dce2ea;--blue:#244be0;--purple:#7944bb;--paper:#fff;--pale:#f4f7fc;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:system-ui,-apple-system,sans-serif;font-size:1rem;line-height:1.6}button,input,textarea{font:inherit}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:var(--blue)}button{cursor:pointer;background:none;border:1px solid var(--line);border-radius:4px;padding:6px 12px;color:var(--ink);font-size:0.875rem}button:hover{border-color:var(--blue);color:var(--blue);background:#f0f4ff}button:disabled,input:disabled,textarea:disabled{cursor:wait;opacity:.6}:focus-visible{outline:3px solid #92acff;outline-offset:3px}.masthead{max-width:1200px;margin:auto;padding:28px 40px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.wordmark{font-family:var(--serif);font-size:1.5625rem;letter-spacing:-.6px;text-decoration:none}.wordmark span{color:var(--blue)}.edition{font-family:var(--mono);font-size:0.75rem;letter-spacing:.04em;color:var(--muted)}main{max-width:1040px;margin:auto;padding:0 40px}.article-meta{margin:46px 0 20px;display:flex;justify-content:space-between;gap:16px;font-size:0.8125rem;color:var(--muted)}.article-meta span:first-child{color:var(--blue);font-family:var(--mono);letter-spacing:.1em}h1{font-family:var(--serif);font-size:clamp(2.875rem,6vw,4.5rem);line-height:1.07;font-weight:400;letter-spacing:-2.5px;margin:0 0 22px}h1 em{font-weight:400;color:var(--blue)}.lede{font-family:var(--serif);font-size:1.4375rem;line-height:1.5;color:#4c5b6c;margin:0 0 25px}.article-links{display:flex;gap:24px;align-items:center;flex-wrap:wrap;font-size:0.875rem;margin-bottom:44px}.article-links #runtime{margin-left:auto;color:var(--muted);font-family:var(--mono);font-size:0.75rem}#runtime.ready{color:#205747}#runtime.failed{color:#a12832}.experiment{border:1px solid var(--line);border-top:3px solid var(--ink);padding:28px 30px;background:white;box-shadow:0 5px 22px #142a4e05}.section-heading{display:flex;gap:18px;margin-bottom:25px}.number{font:0.875rem var(--mono);color:var(--blue);padding-top:6px}h2{font-family:var(--serif);font-size:1.75rem;line-height:1.25;font-weight:400;margin:0 0 8px;letter-spacing:-.4px}.section-heading p{font-size:0.9375rem;color:var(--muted);margin:0}.input-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}.input-heading label{font-size:0.875rem;font-weight:600}.presets{display:flex;gap:7px}.presets button{font-size:0.75rem;padding:3px 9px}textarea{width:100%;display:block;resize:vertical;min-height:76px;max-height:260px;padding:13px 15px;background:var(--pale);border:1px solid #cfd8e6;border-radius:4px;font-family:var(--mono);font-size:1.0625rem;line-height:1.5;color:var(--ink)}.slider-label{display:flex;justify-content:space-between;margin:21px 0 6px;font-size:0.875rem;color:var(--muted)}.slider-label strong{font-family:var(--mono);color:var(--ink)}input[type=range]{width:100%;accent-color:var(--blue);margin:8px 0 23px;cursor:ew-resize;min-height:20px}.halves{display:grid;grid-template-columns:1fr 1fr;gap:16px}.half{border:1px solid #cfdbf5;background:#f6f8ff;padding:15px 18px;border-radius:4px;min-width:0}.half-b{background:#faf7ff;border-color:#e4d8f2}.half-title{display:flex;align-items:center;justify-content:space-between;font-size:0.8125rem;color:var(--muted)}.half-title strong{color:var(--blue);font:italic 1.375rem var(--serif)}.half-b .half-title strong{color:var(--purple)}.bytes{font:0.875rem/1.6 var(--mono);color:var(--blue);padding:12px 0;min-height:47px;max-height:90px;overflow:auto;overflow-wrap:anywhere}.half-b .bytes{color:var(--purple)}dl{display:grid;grid-template-columns:1fr auto;gap:3px;margin:0;font-size:0.8125rem;border-top:1px solid #dbe3f5;padding-top:10px}dt{color:var(--muted)}dd{margin:0;font-family:var(--mono)}.composition{text-align:center;padding:22px 5px;color:var(--muted);font-size:0.75rem}.formula{display:block;color:var(--ink);font:italic 1.5rem var(--serif);margin-bottom:7px}.results{display:grid;grid-template-columns:1fr 1fr auto;gap:20px;border-top:1px solid var(--line);padding-top:21px;align-items:center}.eyebrow{display:block;font:0.6875rem var(--mono);letter-spacing:.06em;color:var(--muted)}output{display:block;font:1.75rem/1.65 var(--mono);letter-spacing:-.5px}small{display:block;color:var(--muted);font-size:0.75rem}.match{color:#226144;background:#edf7f1;border:1px solid #cfe5d9;padding:7px 13px;border-radius:3px;font-size:0.875rem}.match.failed{background:#fff1f1;border-color:#e1b8b8;color:#a12832}.footnote{font-size:0.8125rem;line-height:1.65;color:var(--muted);margin:20px 0 0}.footnote code{font-size:0.75rem}.explanation{display:grid;grid-template-columns:130px 1fr;gap:28px;margin:62px 0}.margin-note{font:0.75rem var(--mono);color:var(--blue);letter-spacing:.1em;padding-top:7px}.explanation h2{font-size:2.125rem}.explanation p{font-family:var(--serif);font-size:1.1875rem;line-height:1.7}.featured-code{padding:21px 24px;border-left:3px solid var(--blue);background:var(--pale);overflow:auto;font:0.875rem/1.7 var(--mono)}.explanation .footnote{font-family:inherit;font-size:0.8125rem}.incremental{border-top-color:var(--blue)}.tree-toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:0.75rem;margin-bottom:18px;color:var(--muted)}.legend-key{display:inline-block;width:9px;height:9px;border-radius:2px;margin:0 5px 0 12px;border:1px solid #cbd3df}.changed-key{background:var(--blue);border-color:var(--blue)}.retained-key{background:#edf0f5}.tree-leaves{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.leaf{padding:12px;background:#f6f8fb;border:1px solid var(--line);border-radius:4px;min-width:0}.leaf label{font:italic 1.25rem var(--serif);display:block;margin-bottom:9px}.leaf input{width:100%;min-width:0;border:1px solid #cdd6e4;border-radius:3px;padding:8px;font:0.9375rem var(--mono);color:var(--ink);background:white}.leaf code{display:block;font:0.75rem var(--mono);margin-top:10px}.leaf .leaf-bytes{font-size:0.6875rem;color:var(--muted)}.tree-lines{display:block;width:100%;height:42px;overflow:visible}.tree-lines path{fill:none;stroke:#b6c3d8;stroke-width:1.5;vector-effect:non-scaling-stroke}.tree-branches{display:grid;grid-template-columns:1fr 1fr;gap:25%;margin:0 12.5%}.tree-node{background:#f6f8fb;border:1px solid var(--line);border-radius:4px;text-align:center;padding:10px 8px;font-size:0.8125rem}.tree-node code{display:block;font:0.9375rem var(--mono);margin-top:4px}.tree-root{max-width:260px;margin:0 auto}.changed{background:#edf2ff;border-color:#829aed;color:#173cae}.tree-summary{display:flex;justify-content:space-between;gap:16px;align-items:center;border-top:1px solid var(--line);margin-top:25px;padding-top:16px;font-size:0.8125rem}.tree-summary p{margin:0}.tree-summary>span{color:#226144}.source-section{margin:64px 0}.source-tabs{display:flex;gap:3px;border-bottom:1px solid var(--line);overflow-x:auto}.source-tabs button{border:none;border-bottom:3px solid transparent;border-radius:0;padding:13px 18px;white-space:nowrap;color:var(--muted)}.source-tabs button[aria-selected=true]{border-bottom-color:var(--blue);color:var(--blue)}.source-description{display:flex;align-items:start;justify-content:space-between;gap:25px;padding:15px 0;font-size:0.8125rem}.source-description p{margin:0;max-width:620px;color:var(--muted)}.source-description a{white-space:nowrap}.source-code{margin:0;background:#142337;color:#dce7f8;font:0.8125rem/1.7 var(--mono);padding:26px 28px;max-height:500px;overflow:auto;tab-size:2;border-radius:4px}footer{border-top:1px solid var(--line);padding:26px 0 44px;display:flex;justify-content:space-between;gap:24px;font-size:0.8125rem;color:var(--muted)}footer>span{font-family:var(--serif);font-size:1.25rem;color:var(--ink)}footer p{margin:0;text-align:right}@media(max-width:700px){.masthead{padding:20px 22px}.edition{display:none}main{padding:0 20px}.article-meta{margin-top:30px;flex-direction:column;gap:6px}h1{letter-spacing:-1.5px}.lede{font-size:1.25rem}.article-links{gap:15px;margin-bottom:30px}.article-links #runtime{margin-left:0;width:100%}.experiment{padding:22px 17px}.section-heading{gap:12px}h2{font-size:1.5625rem}.half{padding:12px}dl{grid-template-columns:1fr;gap:0}dd{margin-bottom:5px}.results{grid-template-columns:1fr 1fr;gap:12px}output{font-size:1.3125rem}.match{grid-column:1/-1;text-align:center}.explanation{grid-template-columns:1fr;gap:14px;margin:40px 0}.tree-leaves{gap:5px}.leaf{padding:8px 5px}.leaf code{font-size:0.625rem;overflow-wrap:anywhere}.leaf input{font-size:0.8125rem;padding:6px 3px}.tree-node code{font-size:0.75rem}.tree-branches{gap:12%;margin:0 7%}.tree-toolbar>span{font-size:0.6875rem}.tree-summary{align-items:start;flex-direction:column;gap:6px}.source-tabs button{padding:12px;font-size:0.8125rem}.source-description{flex-direction:column;gap:8px}.source-code{padding:18px;font-size:0.75rem}.slider-label{font-size:0.75rem}.formula{font-size:1.3125rem}footer{flex-direction:column;gap:12px}footer p{text-align:left}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.explanation>div{min-width:0}@media(max-width:700px){.leaf code{font-size:0.75rem}.leaf .leaf-bytes{font-size:0.75rem}}