:root{--bg:#ffffff;--surface:#fcfcfb;--ink:#0b0b0b;--ink2:#52514e;--rule:#e4e3df;--link:#1c5cab;--code:#f3f2ee}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#141413;--surface:#1a1a19;--ink:#f4f3ee;
--ink2:#c3c2b7;--rule:#383835;--link:#86b6ef;--code:#26261f}}
:root[data-theme="dark"]{--bg:#141413;--surface:#1a1a19;--ink:#f4f3ee;--ink2:#c3c2b7;--rule:#383835;--link:#86b6ef;
--code:#26261f}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header{border-bottom:1px solid var(--rule);background:var(--surface)}
header nav{max-width:80rem;margin:0 auto;padding:.75rem 16px;display:flex;flex-wrap:wrap;gap:.25rem 1.25rem;
align-items:baseline}
header nav .brand{font-weight:600;color:var(--ink);margin-right:auto}
main{max-width:62rem;margin:0 auto;padding:1.5rem 16px 3rem}
a{color:var(--link)}
h1{font-size:1.7rem;line-height:1.25;margin:.5rem 0 1rem}
h2{font-size:1.3rem;margin:2.5rem 0 .75rem;padding-top:.5rem;border-top:1px solid var(--rule)}
h3{font-size:1.05rem;margin:1.75rem 0 .5rem}
p,li{max-width:75ch}
p:has(mjx-container[display="true"]){max-width:none}
code{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;font-size:.88em;background:var(--code);
padding:.05em .3em;border-radius:3px}
.table-wrap{overflow-x:auto;margin:1rem 0}
table{border-collapse:collapse;font-size:.88rem}
th,td{border-bottom:1px solid var(--rule);padding:.3rem .6rem;text-align:left;vertical-align:top}
th{color:var(--ink2);font-weight:600}
mjx-container[display="true"]{overflow-x:auto;overflow-y:hidden;max-width:100%;padding:.2rem 0}
figure{margin:1.5rem 0;padding:0}
figure img{display:block;width:auto;max-width:100%;height:auto;background:#fcfcfb;border:1px solid var(--rule);border-radius:6px}
figcaption{font-size:.92rem;color:var(--ink2);margin-top:.5rem;max-width:none}
figcaption strong{color:var(--ink)}
.data{white-space:nowrap}
.layout{max-width:80rem;margin:0 auto;padding:0 16px;display:grid;grid-template-columns:15rem minmax(0,1fr);gap:2.5rem}
.layout main{max-width:none;margin:0;padding:1.5rem 0 3rem;min-width:0}
.sidebar{position:sticky;top:0;align-self:start;max-height:100vh;overflow-y:auto;padding:1.5rem 0 1.5rem;font-size:.88rem;
line-height:1.4}
.sidebar strong{display:block;margin:0 0 .5rem .6rem;color:var(--ink)}
.sidebar ul{list-style:none;margin:0;padding:0}
.sidebar li ul{padding-left:.9rem}
.sidebar a{display:block;padding:.22rem .6rem;border-left:2px solid var(--rule);color:var(--ink2);text-decoration:none}
.sidebar a:hover{color:var(--link)}
.sidebar a.active{color:var(--ink);border-left-color:var(--link);font-weight:600}
@media (max-width:900px){.layout{display:block}.sidebar{position:static;max-height:none;margin-top:1rem;padding:.75rem;
border:1px solid var(--rule);border-radius:6px;background:var(--surface)}}
.lead{color:var(--ink2)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:1rem;margin:1.5rem 0}
.card{border:1px solid var(--rule);border-radius:8px;padding:1rem 1.25rem;background:var(--surface)}
.card h2{border:0;margin:0 0 .5rem;padding:0;font-size:1.15rem}
footer{max-width:80rem;margin:0 auto;padding:1.5rem 16px;color:var(--ink2);font-size:.88rem;
border-top:1px solid var(--rule)}