:root{--bg:#fafaf8;--fg:#111;--mute:#6b6b6b;--line:#e4e4e0;--code:#f0f0ec;
--mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
--sans:ui-sans-serif,-apple-system,"Segoe UI",Inter,Helvetica,Arial,sans-serif}
@media(prefers-color-scheme:dark){:root{--bg:#0d0d0d;--fg:#ececec;--mute:#8a8a8a;--line:#222;--code:#181818}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 var(--sans);
display:grid;grid-template-columns:1fr;min-height:100vh;grid-template-rows:auto 1fr auto}
a{color:inherit;text-decoration-color:var(--mute);text-underline-offset:3px}
a:hover{text-decoration-color:var(--fg)}
.top{display:flex;justify-content:space-between;align-items:center;padding:20px 28px;font-family:var(--mono);font-size:14px}
.top nav a{margin-left:22px;text-decoration:none;color:var(--mute)}
.top nav a:hover{color:var(--fg)}
.mark{font-weight:700;text-decoration:none;font-size:16px;letter-spacing:-.02em}
.cur{display:inline-block;width:.55em;height:1.05em;margin-left:2px;vertical-align:-.15em;background:var(--fg);animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
@media(prefers-reduced-motion:reduce){.cur{animation:none}}
footer{padding:28px;font:12px var(--mono);color:var(--mute)}
code,pre{font-family:var(--mono);font-size:.86em}
code{background:var(--code);padding:.1em .35em;border-radius:4px}
pre{background:var(--code);padding:14px 16px;border-radius:8px;overflow-x:auto;line-height:1.5}
pre code{background:none;padding:0;font-size:inherit}

/* home */
.home main{max-width:760px;width:100%;margin:0 auto;padding:12vh 28px 40px}
.hero h1{font-size:clamp(34px,6vw,56px);line-height:1.08;letter-spacing:-.035em;font-weight:650;margin:0 0 28px}
.hero h1 em{font-style:normal;font-family:var(--mono);font-weight:500;letter-spacing:-.04em}
.lede{font-size:18px;color:var(--mute);max-width:62ch;margin:0 0 36px}
.term{font-size:13px;white-space:pre-wrap;margin:0 0 36px}
.term .p{color:var(--mute);user-select:none}
.term .c{color:var(--mute)}
.cta a{font-family:var(--mono);font-size:14px;text-decoration:none;border-bottom:1px solid var(--fg);padding-bottom:2px}
.ideas{margin-top:14vh;border-top:1px solid var(--line);padding-top:28px}
.ideas h2{font:13px var(--mono);color:var(--mute);font-weight:400;margin:0 0 20px}
.ideas ol{padding-left:1.3em;margin:0;color:var(--mute)}
.ideas li{margin-bottom:14px}
.ideas strong{color:var(--fg);font-weight:600}

/* docs */
.doc{grid-template-columns:240px minmax(0,1fr);grid-template-rows:auto 1fr auto}
.doc .top,.doc footer{grid-column:1/-1}
.side{padding:8px 0 40px 28px;font-size:14px}
.side ul{list-style:none;margin:0;padding:0;position:sticky;top:20px}
.side>ul{max-height:calc(100vh - 40px);overflow-y:auto}
.side li{margin:2px 0}
.side a{text-decoration:none;color:var(--mute);display:block;padding:3px 0}
.side a:hover,.side .here>a{color:var(--fg)}
.side .here>a{font-weight:600}
.side li ul{position:static;margin:4px 0 10px;padding-left:12px;border-left:1px solid var(--line);font-size:13px}
.doc main{max-width:76ch;padding:0 40px 60px;width:100%}
.doc main h1{font-size:34px;letter-spacing:-.03em;line-height:1.15;margin:8px 0 24px}
.doc main h2{font-size:21px;letter-spacing:-.015em;margin:2.4em 0 .6em;padding-top:.4em}
.doc main h3{font-size:16px;margin:1.8em 0 .4em}
.doc main h2,.doc main h3{scroll-margin-top:16px}
.doc main li{margin:.25em 0}
table{border-collapse:collapse;font-size:14px;display:block;overflow-x:auto}
th,td{border-bottom:1px solid var(--line);padding:6px 12px 6px 0;text-align:left;vertical-align:top}
blockquote{margin:0;padding-left:16px;border-left:2px solid var(--line);color:var(--mute)}
.edit{margin-top:60px;font:12px var(--mono);color:var(--mute)}
@media(max-width:800px){
 .doc{grid-template-columns:1fr}
 .side{padding:0 20px 8px}
 .side ul{position:static}.side>ul{max-height:none;display:flex;flex-wrap:wrap;gap:4px 16px}
 .side li ul{display:none}
 .doc main{padding:0 20px 40px}
 .top{padding:16px 20px}
}