:root{--bg:#f5f5f7;--ink:#1d1d1f;--muted:#5f5f66;--line:#dcdce1;--silver:#e8e9ef;--white:#fff;--good:#138758;--bad:#b3261e;--warm:#f0a94a;--warmink:#8c5d0c}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Arial,system-ui,sans-serif;-webkit-font-smoothing:antialiased;font-size:17px;line-height:1.55}
a{color:inherit}
.doc a:not(.pill){color:#0066cc;text-decoration:none}
.doc a:not(.pill):hover{text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px clamp(16px,4vw,48px);background:rgba(245,245,247,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.wordmark{font-weight:650;font-size:18px;letter-spacing:-.01em;text-decoration:none;display:inline-flex;align-items:center;gap:9px}
.wordmark img{width:26px;height:26px;display:block;border-radius:6px}
.navr{display:flex;align-items:center;gap:20px;font-size:14px;color:var(--muted)}
.navr a{text-decoration:none}
.navr a:hover{color:var(--ink)}
.pill{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:30px;background:var(--ink);color:#fff;text-decoration:none;font-size:14px;font-weight:550;border:0;cursor:pointer;font-family:inherit}
.pill.lg{height:50px;padding:0 24px;font-size:16px}
.pill.ghost{background:var(--white);color:var(--ink);border:1px solid var(--line)}
.pill svg{width:14px;height:14px}
main.doc{max-width:720px;margin:0 auto;padding:40px clamp(16px,4vw,48px) 80px}
.doc h1{margin:0 0 6px;font-size:clamp(34px,5vw,52px);font-weight:650;letter-spacing:-.035em;line-height:1.04;text-wrap:balance}
.upd{color:var(--muted);font-size:14px;margin:0 0 36px}
.doc h2{margin:40px 0 10px;font-size:22px;font-weight:650;letter-spacing:-.02em;text-wrap:balance}
.doc h3{margin:24px 0 8px;font-size:18px;font-weight:650}
.doc p,.doc li{margin:0 0 14px}
.doc ul,.doc ol{padding-left:22px;margin:0 0 14px}
.doc li{margin-bottom:8px}
.lede{font-size:20px;color:var(--muted);max-width:52ch;margin-bottom:8px}
.card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:18px 0}
.card h3{margin:0 0 6px;font-size:16px;font-weight:650}
.card p{margin:0;color:var(--muted);font-size:15px}
.tw{overflow-x:auto;margin:14px 0;border:1px solid var(--line);border-radius:12px;background:var(--white)}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1px solid var(--line)}
th{background:var(--silver);font-weight:600}
tr:last-child td{border-bottom:0}
code{font-family:ui-monospace,Menlo,monospace;font-size:14px;background:var(--silver);padding:1px 6px;border-radius:5px}
details{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 0;color:var(--muted)}
.foot{padding:40px clamp(16px,4vw,48px);border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.foot a{text-decoration:none}
.foot a:hover{color:var(--ink)}
.foot nav{display:flex;gap:16px;flex-wrap:wrap}
@media (max-width:560px){.navr .hide-s{display:none}}
@media (max-width:420px){.wordmark{font-size:16px;gap:7px}.wordmark img{width:22px;height:22px}.navr{gap:12px;font-size:13px}}