:root{--bg:#fbfaf7;--fg:#1d1d1f;--mut:#5a5a62;--ac:#0b5cad;--ac2:#08437d;--card:#fff;--bd:#dcd8cf;--hero:#efe9dc;--r:10px}
@media(prefers-color-scheme:dark){:root{--bg:#141417;--fg:#ece9e2;--mut:#a5a5ad;--ac:#7db7f2;--ac2:#a8d0f8;--card:#1d1d22;--bd:#34343b;--hero:#1e1d1a}}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font:1rem/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--ac)}a:hover{color:var(--ac2)}
:focus-visible{outline:3px solid var(--ac);outline-offset:2px}
.skip{position:absolute;top:-60px;left:0;background:#000;color:#fff;padding:.5rem 1rem;z-index:99}.skip:focus{top:0}
.wrap{max-width:1100px;margin:0 auto;padding:0 1rem}
header{border-bottom:1px solid var(--bd);background:var(--card)}
header .wrap{display:flex;flex-wrap:wrap;gap:.75rem 1.5rem;align-items:center;justify-content:space-between;padding-block:.75rem}
.logo{font:700 1.4rem Georgia,serif;text-decoration:none;color:var(--fg)}.logo span{color:var(--ac)}
nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:.25rem 1.25rem}
nav a{text-decoration:none;font-weight:500}nav a:hover,nav a[aria-current]{text-decoration:underline}
.sf{display:flex;gap:.4rem}input,textarea,select{font:inherit;padding:.55rem .7rem;border:1px solid var(--bd);border-radius:var(--r);background:var(--bg);color:var(--fg);width:100%}
.sf input{width:min(220px,40vw)}
button,.btn{font:inherit;font-weight:600;padding:.55rem 1.1rem;border:0;border-radius:var(--r);background:var(--ac);color:#fff;cursor:pointer;text-decoration:none;display:inline-block}
@media(prefers-color-scheme:dark){button,.btn{color:#0a0a0c}}
button:hover,.btn:hover{background:var(--ac2);color:#fff}
.hero{background:var(--hero);padding:3rem 1rem;text-align:center;border-bottom:1px solid var(--bd)}
.hero h1{font:700 clamp(1.8rem,5vw,2.8rem)/1.2 Georgia,serif;margin-bottom:1rem}.hero p{max-width:640px;margin:0 auto 1.25rem;color:var(--mut)}
.hero form{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap}.hero input{max-width:420px}
main{padding:2rem 0 3rem}h1,h2,h3{line-height:1.25}h2{font:700 1.5rem Georgia,serif;margin:2rem 0 .75rem}h3{margin:1.25rem 0 .4rem}
p,ul.t,ol{margin-bottom:1rem}ul.t,ol{padding-left:1.4rem}
.prose{max-width:760px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}
.card{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:1rem}
.card h3{margin:0 0 .4rem;font-size:1.05rem}.card .n{font:700 1.6rem Georgia,serif;color:var(--ac)}
details.card summary{cursor:pointer;font-weight:600;list-style-position:inside}
details.card ul{list-style:none;margin-top:.6rem}details.card li a{display:block;padding:.2rem 0}
.crumbs{font-size:.9rem;color:var(--mut);margin-bottom:1rem}.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:0}.crumbs li+li::before{content:"›";margin-right:.4rem}
.res{list-style:none;padding:0}.res li{padding:.8rem 0;border-bottom:1px solid var(--bd)}
.note{background:var(--hero);border-left:4px solid var(--ac);padding:.8rem 1rem;border-radius:0 var(--r) var(--r) 0;margin:1rem 0}
.pn{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:2rem}
label{display:block;font-weight:600;margin:.9rem 0 .3rem}
footer{background:#222;color:#eee;padding:2rem 0;margin-top:2rem}footer a{color:#fff}footer ul{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;margin:.6rem 0}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
dl.s dt{font-weight:700;margin-top:.8rem}
.tw{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid var(--bd);padding:.5rem .7rem;text-align:left;vertical-align:top}th{background:var(--hero)}
.xr h2{font-size:1.1rem;margin:0 0 .4rem}.xr p{margin:.4rem 0}