:root{--bg:#0c0d0f;--surface:#111214;--ink:#f1f1eb;--muted:#a2a29d;--line:rgba(241,241,235,.18);--accent:#67d7ff;--maxw:1320px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg);overflow-x:clip}body{background-color:var(--bg);background-image:linear-gradient(rgba(241,241,235,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(241,241,235,.055) 1px,transparent 1px);background-size:56px 56px;color:var(--ink);font-family:Archivo,Arial,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}.mono{font-family:'IBM Plex Mono',monospace}a{color:inherit;text-decoration:none}.wrap{width:min(calc(100% - 72px),var(--maxw));margin:0 auto}:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
header{position:fixed;inset:0 0 auto;z-index:10;padding:18px 0;background:rgba(12,13,15,.96)}.nav{height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;border:1px solid var(--line);background:var(--surface)}.logo{display:flex;align-items:center}.logo img{height:24px;width:auto;display:block;filter:invert(1)}.nav-links{display:flex;gap:36px;font-size:14px;color:var(--muted);align-items:center}.nav-links a{transition:color .2s}.nav-links a:hover{color:var(--accent)}
.page-head{padding:188px 0 82px;border-bottom:1px solid var(--line)}.sec-index{font:500 10px/1.2 'IBM Plex Mono',monospace;letter-spacing:.13em;text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:12px}.sec-index::before{content:"";width:28px;height:1px;background:currentColor}.page-head h1{max-width:850px;margin-top:27px;font-size:clamp(50px,6.7vw,96px);font-weight:600;letter-spacing:-.07em;line-height:.89}.page-meta{margin-top:27px;color:var(--muted);font:500 10px/1.2 'IBM Plex Mono',monospace;letter-spacing:.1em;text-transform:uppercase}
.content{display:grid;grid-template-columns:255px minmax(0,760px);gap:74px;padding-top:82px;padding-bottom:120px}.toc{position:sticky;top:110px;align-self:start;padding-left:18px;border-left:1px solid var(--line);font-size:13px}.toc b{display:block;margin-bottom:15px;color:var(--accent);font:500 10px/1.2 'IBM Plex Mono',monospace;letter-spacing:.1em;text-transform:uppercase}.toc a{display:block;padding:6px 0;color:var(--muted);transition:color .2s}.toc a:hover{color:var(--ink)}
.prose>p{max-width:70ch;margin-bottom:19px;color:var(--muted)}.prose .lead{max-width:740px;margin-bottom:47px;color:var(--ink);font-size:20px;line-height:1.45}.prose h2{display:flex;align-items:baseline;gap:16px;margin:64px 0 19px;font-size:clamp(25px,2.5vw,34px);font-weight:600;letter-spacing:-.045em;line-height:1.05;scroll-margin-top:110px}.prose h2 .n{color:var(--accent);font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.08em}.prose h3{margin:35px 0 12px;font-size:18px;font-weight:600;letter-spacing:-.02em}.prose ul{max-width:70ch;margin:0 0 19px;padding:0;list-style:none}.prose ul li{position:relative;margin-bottom:8px;padding-left:19px;color:var(--muted)}.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--accent)}.prose a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;transition:color .2s}.prose a:hover{color:var(--accent)}
.def-card{max-width:700px;margin:24px 0 31px;border:1px solid var(--line);background:var(--surface)}.def-row{display:grid;grid-template-columns:200px 1fr;gap:22px;padding:16px 20px;border-bottom:1px solid var(--line);font-size:14.5px}.def-row:last-child{border-bottom:0}.def-row dt{padding-top:2px;color:var(--muted);font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.08em;text-transform:uppercase}.def-row dd{color:var(--ink)}
footer{border-top:1px solid var(--line);background:var(--surface);color:var(--muted)}.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:18px;min-height:92px;align-items:center;font:500 10px 'IBM Plex Mono',monospace;letter-spacing:.07em;text-transform:uppercase}.foot-links{display:flex;gap:24px}.foot-links a{transition:color .2s}.foot-links a:hover{color:var(--accent)}
@media(max-width:900px){.wrap{width:min(calc(100% - 44px),var(--maxw))}.nav-links{display:none}.page-head{padding:145px 0 64px}.content{grid-template-columns:1fr;gap:45px;padding-top:58px;padding-bottom:88px}.toc{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px;padding:18px;border:1px solid var(--line);background:var(--surface)}.toc b{grid-column:1/-1}.def-row{grid-template-columns:1fr;gap:5px}.foot-bottom{padding:28px 0}}
@media(max-width:620px){.wrap{width:min(calc(100% - 32px),var(--maxw))}header{padding:8px 0}.nav{height:58px;padding:0 16px}.logo img{height:20px}.page-head{padding:125px 0 52px}.page-head h1{font-size:48px}.content{padding-top:44px;padding-bottom:72px}.prose .lead{margin-bottom:38px;font-size:18px}.prose h2{margin-top:50px;font-size:27px}.prose h2 .n{font-size:11px}.toc{grid-template-columns:1fr;padding:16px}.toc b{grid-column:auto}.def-row{padding:15px}.foot-bottom{display:grid;grid-template-columns:1fr;padding:26px 0}.foot-links{flex-wrap:wrap;gap:12px 18px}}