:root{--ink:#1d2a24;--mute:#5d6b64;--line:#d8dfdb;--bg:#fbfcfb;--accent:#2f6b4f;--soft:#e8efeb;--warn:#9a5b00}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent)}
header,main,footer{max-width:72rem;margin:0 auto;padding:0 1rem}
header{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1rem;padding-top:.9rem;padding-bottom:.6rem;
border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:.55rem;margin-right:auto;font-weight:700;font-size:1.2rem;
letter-spacing:-.01em;color:var(--ink);text-decoration:none}
.brand svg{width:2rem;height:2rem;flex:none}
nav{display:flex;flex-wrap:wrap;gap:.15rem}
nav a{color:var(--ink);text-decoration:none;padding:.4rem .6rem;border-radius:5px}
nav a:hover,nav a:focus-visible{background:var(--soft)}
main p,main li{max-width:42rem}
.wip{background:#fff6e5;border:1px solid #f0d8a8;border-radius:6px;padding:.55rem .8rem;margin:1rem 0;font-size:.9rem}
h1{font-size:1.8rem;line-height:1.2;margin:1.4rem 0 .8rem}h2{font-size:1.3rem;margin:2.2rem 0 .4rem}
.mute{color:var(--mute)}
.scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.94rem}
th,td{border-bottom:1px solid var(--line);padding:.45rem .5rem;text-align:left;vertical-align:top}
th{font-size:.85rem;font-weight:600;color:var(--mute)}
td.num{white-space:nowrap}code{font-size:.85em;overflow-wrap:anywhere}
.g{display:inline-block;min-width:1.3em;text-align:center;border-radius:3px;font-size:.75rem;font-weight:700;color:#fff;margin-left:.3rem}
.gA{background:#2f6b4f}.gB{background:#4f7fa8}.gC{background:#8a6aa8}.gD{background:#8b8b8b}
.yr{font-size:.75rem;color:var(--warn);border:1px solid var(--warn);border-radius:3px;padding:0 .2rem;margin-left:.3rem}
.tag{font-size:.75rem;color:var(--mute);margin-left:.3rem}
.null{color:var(--mute);font-style:italic}
.why{display:block;font-size:.85rem;color:var(--mute);white-space:normal;min-width:16rem}
.v{position:relative;cursor:help;outline-offset:2px}
.card{display:none;position:absolute;z-index:5;left:0;top:1.4em;width:26rem;max-width:80vw;background:#fff;
border:1px solid var(--line);border-radius:6px;padding:.6rem .75rem;box-shadow:0 4px 16px #0002;font-size:.82rem;
white-space:normal;overflow-wrap:anywhere}
.v:hover .card,.v:focus .card,.v:focus-within .card{display:block}.card dt{font-weight:600}.card dd{margin:0 0 .3rem}
svg.map{display:block;margin:1rem 0}
svg.map rect{fill:var(--accent)}svg.map text{fill:#fff;font-size:12px;font-weight:600;text-anchor:middle;dominant-baseline:central}
svg.map a:hover rect,svg.map a:focus rect{fill:var(--ink)}
svg.map rect.todo{fill:var(--soft)}svg.map text.todo{fill:var(--mute);font-weight:400}
footer{margin:3rem auto 2rem;padding-top:1rem;border-top:1px solid var(--line);font-size:.85rem;color:var(--mute)}
@media (max-width:40rem){
body{font-size:16px}h1{font-size:1.45rem}
.brand{width:100%}nav{margin-left:-.45rem}nav a{padding:.4rem .45rem;font-size:.95rem}
table.stack thead{display:none}
table.stack tr{display:block;padding:.55rem 0;border-bottom:1px solid var(--line)}
table.stack td{display:block;border:0;padding:.1rem 0}
table.stack td.num{white-space:normal;padding-top:.25rem}
table.stack td[data-label]::before{content:attr(data-label);display:inline-block;min-width:3rem;margin-right:.4rem;
font-size:.8rem;font-weight:600;color:var(--mute)}
.why{min-width:0}
.card{position:static;width:auto;max-width:none;margin:.4rem 0 .2rem;box-shadow:none}
}