:root{--accent:#27381a;--on-accent:#ffffff;--tint:#eeefed;--bg:#fff;--fg:#14171f;--muted:#5b6270;--line:#e6e8ee;--card:#fff;--code:#f4f5f8;--radius:12px;--sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--serif:ui-serif,"Iowan Old Style","Palatino Linotype",Georgia,Cambria,"Times New Roman",serif}
@media (prefers-color-scheme:dark){:root{--accent:#7f8978;--tint:#131716;--bg:#0f1115;--fg:#e8eaf0;--muted:#a0a7b4;--line:#242832;--card:#151820;--code:#1a1e27}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}
a{color:var(--accent);text-underline-offset:.18em;text-decoration-thickness:.08em}
a:hover{text-decoration-thickness:.14em}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
img{max-width:100%;height:auto;display:block}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--on-accent);padding:.5rem .9rem;border-radius:0 0 8px 0;z-index:10}
.skip:focus{left:0}
.wrap{width:100%;max-width:1040px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font-weight:650;letter-spacing:-.01em;font-size:1.05rem}
.brand:hover{text-decoration:none}
.mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--accent);color:var(--on-accent);font-size:.95rem;font-weight:700}
nav.main{display:flex;gap:4px;flex-wrap:wrap}
nav.main a{color:var(--muted);text-decoration:none;padding:6px 12px;border-radius:8px;font-size:.95rem}
nav.main a:hover{color:var(--fg);background:var(--tint)}
nav.main a[aria-current]{color:var(--fg);font-weight:600}
main{padding:40px 0 72px}
.hero{padding:24px 0 36px}
.hero h1{font-size:clamp(2rem,5vw,3rem);line-height:1.1;letter-spacing:-.03em;margin:0 0 14px;max-width:22ch}
.hero p{font-size:1.15rem;color:var(--muted);max-width:56ch;margin:0}
.hero .about{margin-top:14px;font-size:1rem}
h2.section{font-size:1.05rem;letter-spacing:.02em;text-transform:uppercase;color:var(--muted);margin:44px 0 16px;font-weight:650}
.cards{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none}
.card .thumb{aspect-ratio:1200/630;background:var(--tint);display:grid;place-items:center;color:var(--accent);font-size:2.4rem;font-weight:700}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{margin:0;font-size:1.08rem;line-height:1.3;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:.94rem}
.meta{color:var(--muted);font-size:.85rem;display:flex;gap:6px 14px;flex-wrap:wrap}
.kind{display:inline-block;background:var(--tint);color:var(--accent);border-radius:999px;padding:1px 10px;font-size:.75rem;font-weight:650;letter-spacing:.02em}
.list{display:grid;gap:0;border-top:1px solid var(--line)}
.list a{display:grid;gap:4px;padding:18px 0;border-bottom:1px solid var(--line);text-decoration:none;color:inherit}
.list a:hover h3{color:var(--accent)}
.list h3{margin:0;font-size:1.15rem;letter-spacing:-.01em}
.list p{margin:0;color:var(--muted)}
.page-title{font-size:2.2rem;letter-spacing:-.025em;line-height:1.15;margin:0 0 8px}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted)}
article h1{font-size:clamp(1.8rem,4.5vw,2.6rem);line-height:1.15;letter-spacing:-.025em;margin:0 0 14px}
.lede{font-size:1.2rem;line-height:1.55;color:var(--muted);margin:0 0 20px}
.cover{margin:24px 0 8px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
details.toc{margin:24px 0;border:1px solid var(--line);border-radius:var(--radius);padding:12px 18px;background:var(--card)}
details.toc summary{cursor:pointer;font-weight:650;font-size:.95rem}
details.toc ol{margin:10px 0 4px;padding-left:1.2rem;color:var(--muted)}
details.toc li{margin:4px 0}
.prose{font-family:var(--serif);font-size:1.125rem;line-height:1.72;overflow-wrap:break-word}
.prose>*+*{margin-top:1.15em}
.prose h2,.prose h3,.prose h4{font-family:var(--sans);line-height:1.25;letter-spacing:-.015em;margin-top:2.1em;scroll-margin-top:16px}
.prose h2{font-size:1.55rem}
.prose h3{font-size:1.2rem;margin-top:1.7em}
.prose h2+*,.prose h3+*{margin-top:.6em}
.prose ul,.prose ol{padding-left:1.4rem}
.prose li+li{margin-top:.4em}
.prose code{font:.88em ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--code);padding:.12em .38em;border-radius:6px}
.prose blockquote{margin-left:0;padding:.2em 0 .2em 1.1em;border-left:3px solid var(--accent);color:var(--muted)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);-webkit-overflow-scrolling:touch}
.prose table{border-collapse:collapse;width:100%;font:.93rem/1.5 var(--sans);min-width:520px}
.prose th,.prose td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{background:var(--tint);font-weight:650;white-space:nowrap}
.prose tr:last-child td{border-bottom:0}
.sources,.related{margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.sources h2,.related h2{font-size:1.05rem;margin:0 0 12px}
.sources ul{margin:0;padding-left:1.2rem;color:var(--muted);font-size:.92rem}
footer.site{border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}
footer.site .wrap{display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;padding-top:24px;padding-bottom:32px}
footer.site a{color:var(--muted)}
.notfound{text-align:center;padding:72px 0}
.notfound h1{font-size:3rem;margin:0 0 8px;letter-spacing:-.03em}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}.card:hover{transform:none}}
@media print{header.site,footer.site,details.toc,.related{display:none}.prose{font-size:11pt}}