:root{--bg:#fbfaf7;--fg:#1d1a24;--muted:#5a5566;--line:#dcd7e3;--card:#fff;--accent:#0b6e7a;--accent-fg:#fff;--link:#0b5f9e;--note:#f1eef7;--fig:#2b2540;--figm:#b3361f;--p1:#0b6e7a;--p2:#c27a00;--hl:#ffe08a}
@media (prefers-color-scheme:dark){:root{--bg:#14101a;--fg:#ece8f2;--muted:#b0a9bd;--line:#38304a;--card:#1d1727;--accent:#48d4e7;--accent-fg:#14101a;--link:#7cc4ff;--note:#231b30;--fig:#e6e0f2;--figm:#ff8f78;--p1:#48d4e7;--p2:#ffb84d;--hl:#6b5a14}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:1.0625rem/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:46rem;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-fg);padding:.6rem 1rem;z-index:10}
.skip:focus{left:8px;top:8px}
a{color:var(--link);text-underline-offset:2px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.site-header{border-bottom:1px solid var(--line);background:var(--card)}
.bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 1rem;padding-top:.6rem;padding-bottom:.6rem}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:700;color:var(--fg);text-decoration:none}
.brand img{border-radius:4px}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem 1rem}
.site-header nav a{display:inline-block;padding:.45rem .1rem;color:var(--fg);text-decoration:none;font-weight:500}
.site-header nav a[aria-current]{border-bottom:2px solid var(--accent)}
.site-header nav a:hover{text-decoration:underline}
main{padding-top:1rem;padding-bottom:3rem}
h1{font-size:1.9rem;line-height:1.2;margin:.6rem 0 .6rem}
h2{font-size:1.4rem;line-height:1.3;margin:2.2rem 0 .6rem}
h3{font-size:1.15rem;line-height:1.35;margin:1.5rem 0 .4rem}
p,ul,ol{margin:.8rem 0}
li{margin:.3rem 0}
.lede{font-size:1.2rem;color:var(--muted)}
.meta,.small{color:var(--muted);font-size:.9rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.25rem;margin:0;padding:.4rem 0;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:.35rem}
.toc{background:var(--note);border-radius:8px;padding:.8rem 1rem;margin:1.2rem 0}
.toc-h{font-size:1rem;margin:0 0 .3rem}
.toc ol{margin:.2rem 0;padding-left:1.2rem}
.note{background:var(--note);border-left:4px solid var(--accent);padding:.1rem 1rem;margin:2rem 0;border-radius:4px;font-size:.95rem}
.callout{background:var(--note);border-left:4px solid var(--p2);padding:.1rem 1rem;margin:1.2rem 0;border-radius:4px}
.more{border-top:1px solid var(--line);margin-top:2rem}
.more ul{padding-left:1.2rem}
.more li span{display:block;color:var(--muted);font-size:.92rem}
.cards{list-style:none;padding:0;display:grid;gap:12px;grid-template-columns:1fr}
.cards li{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:.8rem 1rem;margin:0}
.cards h3{margin:0 0 .2rem;font-size:1.1rem}
.cards p{margin:.2rem 0}
@media(min-width:40rem){.cards{grid-template-columns:1fr 1fr}h1{font-size:2.3rem}}
table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.95rem}
th,td{border:1px solid var(--line);padding:.45rem .6rem;text-align:left;vertical-align:top}
th{background:var(--note)}
.tablewrap{overflow-x:auto}
.fig{margin:1.5rem 0}
.fig svg{width:100%;height:auto;max-width:34rem;display:block}
.fig figcaption{font-size:.92rem;color:var(--muted);margin-top:.4rem}
svg .box{fill:var(--card);stroke:var(--line);stroke-width:1.5}
svg .g{fill:var(--fig)}
svg .g.m{fill:var(--figm)}
svg .p1{fill:var(--p1);stroke:var(--card);stroke-width:2}
svg .p2{fill:var(--p2);stroke:var(--card);stroke-width:2}
svg .t,svg .s{fill:var(--fg);font:13px system-ui,sans-serif}
svg .s{fill:var(--muted);font-size:12px}
svg .q{fill:var(--muted);font:700 44px system-ui,sans-serif}
svg .ar{fill:none;stroke:var(--fg);stroke-width:2}
svg .hl{fill:var(--hl)}
svg .code{fill:var(--fg);font:700 28px ui-monospace,Menlo,Consolas,monospace;letter-spacing:2px}
details{border:1px solid var(--line);border-radius:6px;padding:.2rem .8rem;margin:.6rem 0;background:var(--card)}
summary{cursor:pointer;font-weight:600;padding:.4rem 0}
.site-footer{border-top:1px solid var(--line);background:var(--card);padding:1.2rem 0 2rem;font-size:.92rem}
.site-footer ul{gap:.3rem 1rem}
.site-footer a{display:inline-block;padding:.35rem 0}
.disc{color:var(--muted);margin:.5rem 0}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}