:root{--bg0:#06080c;--bg1:#0a1328;--ink:#eef2f8;--ink-2:#c3cbd9;--ink-3:#8a96ab;--blue:#5b8cff;--blue-2:#a9c4ff;--line:rgba(255,255,255,.09);color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0}
body{background:linear-gradient(180deg,var(--bg0),var(--bg1) 60%,var(--bg0));color:var(--ink);font:400 16px/1.7 "Geist","Inter","Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh}
.lg-wrap{max-width:820px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.lg-top{position:sticky;top:0;z-index:5;background:rgba(6,8,12,.75);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.lg-top .lg-wrap{display:flex;justify-content:space-between;align-items:center;padding-block:14px}
.lg-brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:600;letter-spacing:-.01em}
.lg-back{color:var(--ink-2);text-decoration:none;font-size:.9rem}
.lg-back:hover{color:var(--ink)}
.lg-main{padding-block:44px 70px}
.lg-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:34px}
.lg-tabs a{font-size:.86rem;color:var(--ink-2);text-decoration:none;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.04);box-shadow:inset 0 0 0 1px var(--line)}
.lg-tabs a[aria-current="page"]{color:var(--ink);background:rgba(91,140,255,.14);box-shadow:inset 0 0 0 1px rgba(91,140,255,.45)}
h1{font-size:clamp(2rem,5vw,2.8rem);font-weight:500;letter-spacing:-.02em;line-height:1.15;margin:0}
.lg-meta{font-size:.82rem;color:var(--ink-3);margin:10px 0 0}
.lg-lead{font-size:1.08rem;color:var(--ink-2);margin:18px 0 26px;max-width:40em}
.lg-toc{display:flex;flex-wrap:wrap;gap:6px 16px;padding:16px 18px;border-radius:18px;background:rgba(255,255,255,.035);box-shadow:inset 0 0 0 1px var(--line);margin-bottom:12px;font-size:.86rem}
.lg-toc span{width:100%;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.lg-toc a{color:var(--blue-2);text-decoration:none}
.lg-toc a:hover{text-decoration:underline}
section{padding-top:30px;scroll-margin-top:80px}
h2{font-size:1.2rem;font-weight:500;letter-spacing:-.01em;margin:0 0 10px}
p,li{color:var(--ink-2);max-width:42em}
p{margin:0 0 12px}
ul{padding-left:20px;margin:0 0 12px}
li{margin-bottom:6px}
b{color:var(--ink);font-weight:500}
a{color:var(--blue-2)}
code{font:400 .86em "Geist Mono",ui-monospace,Menlo,monospace;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;color:var(--ink)}
mark.ph{background:rgba(240,195,107,.16);color:#f0c36b;padding:1px 6px;border-radius:6px}
.lg-note{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);font-size:.84rem;color:var(--ink-3)}
.lg-foot{border-top:1px solid var(--line);font-size:.82rem;color:var(--ink-3)}
.lg-foot .lg-wrap{padding-block:26px calc(26px + env(safe-area-inset-bottom,0px))}
:focus-visible{outline:2px solid var(--blue-2);outline-offset:3px;border-radius:8px}