:root{
  --ink:#080b10;--ink-2:#0c1117;--ink-3:#121922;--cream:#edf1f7;--cream-dim:#a7b2c2;--cream-faint:#73808f;
  --signal:#2e7cff;--signal-soft:#5b97ff;--line:rgba(237,241,247,.12);--line-strong:rgba(237,241,247,.22);
  --nav-bg:rgba(8,11,16,.78);--font-display:"Bricolage Grotesque",sans-serif;--font-serif:"Instrument Serif",serif;--font-mono:"IBM Plex Mono",monospace;
}
[data-theme="light"]{
  --ink:#f3f5f9;--ink-2:#fff;--ink-3:#e9edf4;--cream:#0d1218;--cream-dim:#46556a;--cream-faint:#6e7d92;
  --signal:#1f6bff;--signal-soft:#3d7dff;--line:rgba(8,18,32,.1);--line-strong:rgba(8,18,32,.22);--nav-bg:rgba(243,245,249,.84);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--cream);font-family:var(--font-display);font-size:16px;font-weight:380;line-height:1.68;-webkit-font-smoothing:antialiased;min-height:100vh}
body::after{content:"";position:fixed;inset:-50%;z-index:999;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.04'/%3E%3C/svg%3E")}
::selection{background:var(--signal);color:#fff}
a{color:var(--signal-soft)}
nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:var(--nav-bg);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1120px;margin:0 auto;padding:0 28px;height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:inline-flex;align-items:center;text-decoration:none}.logo-pic{display:block;height:34px;width:auto}[data-theme="dark"] .logo-pic{content:url(/assets/logo-white.png)}
.nav-actions{display:flex;align-items:center;gap:18px}.nav-actions a{color:var(--cream-dim);font-size:14px;text-decoration:none}.nav-actions a:hover,.nav-actions a[aria-current="page"]{color:var(--cream)}
.theme-toggle{width:48px;height:28px;border-radius:999px;border:1px solid var(--line-strong);background:var(--ink-2);color:var(--cream);cursor:pointer;position:relative}
.theme-toggle::before{content:"";position:absolute;top:50%;left:25%;width:22px;height:22px;border-radius:50%;background:var(--cream);transform:translate(-50%,-50%);transition:left .25s,background .25s}
[data-theme="dark"] .theme-toggle::before{left:75%;background:var(--signal)}
.theme-toggle span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.page{max-width:820px;margin:0 auto;padding:78px 28px 110px}
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--signal);display:inline-flex;align-items:center;gap:10px}.eyebrow::before{content:"";width:24px;height:1px;background:var(--signal)}
h1{font-size:clamp(38px,6vw,60px);font-weight:560;line-height:1.03;letter-spacing:-.035em;margin-top:20px}h1 em{font-family:var(--font-serif);font-weight:400;color:var(--signal-soft)}
.intro{font-size:18px;color:var(--cream-dim);margin-top:20px;max-width:65ch}.updated{margin-top:15px;color:var(--cream-faint);font-family:var(--font-mono);font-size:12px;letter-spacing:.04em}
.notice{margin-top:34px;padding:18px 20px;border:1px solid rgba(46,124,255,.3);border-radius:14px;background:rgba(46,124,255,.08);color:var(--cream-dim)}.notice b{color:var(--cream)}
.toc{margin-top:34px;padding:22px 24px;background:var(--ink-2);border:1px solid var(--line);border-radius:16px}.toc strong{display:block;margin-bottom:10px}.toc ol{columns:2;margin-left:20px;color:var(--cream-dim)}.toc li{padding:3px 16px 3px 0}.toc a{color:inherit;text-decoration:none}.toc a:hover{color:var(--signal-soft)}
.doc{margin-top:50px}.doc section{scroll-margin-top:90px}.doc h2{font-size:22px;font-weight:620;letter-spacing:-.015em;margin:46px 0 14px;color:var(--cream)}.doc h2 .n{color:var(--signal-soft);font-family:var(--font-mono);font-size:15px;font-weight:500;margin-right:9px}.doc h3{font-size:17px;margin:24px 0 8px}.doc p{color:var(--cream-dim);margin-bottom:13px}.doc ul{margin:12px 0 15px 23px;color:var(--cream-dim)}.doc li{margin-bottom:8px}.doc b,.doc strong{color:var(--cream);font-weight:600}.doc a{text-underline-offset:3px}
hr{border:0;border-top:1px solid var(--line);margin:48px 0}
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--cream-faint);font-family:var(--font-mono);font-size:11px;letter-spacing:.06em}.foot-inner{max-width:1120px;margin:0 auto;padding:0 28px;display:flex;justify-content:space-between;gap:20px;align-items:center}.foot-links{display:flex;gap:20px;flex-wrap:wrap}.foot-links a{color:var(--cream-faint);text-decoration:none}.foot-links a:hover{color:var(--signal)}
@media(max-width:680px){.nav-actions>a:not([aria-current="page"]){display:none}.page{padding-top:58px}.toc ol{columns:1}.foot-inner{display:block}.foot-links{margin-top:14px}}