:root{
  --bg:#f4f6f9; --card:#fff; --ink:#161a20; --sub:#5c6672; --line:#e4e8ee;
  --brand:#0d6efd; --brand-ink:#fff; --accent:#0a7d55;
  --warn-bg:#fff4e5; --warn-ink:#8a5300; --warn-line:#ffd79a;
  --demo-bg:#eef1f6; --demo-ink:#5c6672;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 4px 16px rgba(16,24,40,.06);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0e1116; --card:#171b22; --ink:#e8ecf1; --sub:#98a2b0; --line:#252b34;
  --brand:#4a90ff; --brand-ink:#0b0f14; --accent:#38d39a;
  --warn-bg:#3a2a12; --warn-ink:#ffcf87; --warn-line:#5a4320;
  --demo-bg:#20262f; --demo-ink:#98a2b0;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
}}
*{box-sizing:border-box} html,body{margin:0}
body{background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",Segoe UI,Roboto,sans-serif;
  line-height:1.6;-webkit-text-size-adjust:100%;padding:0 16px calc(48px + env(safe-area-inset-bottom));}
.wrap{max-width:780px;margin:0 auto}
a{color:var(--brand)}
header.top{padding:26px 4px 8px}
.kicker{font-size:12px;letter-spacing:.14em;color:var(--sub);font-weight:700;text-transform:uppercase}
h1{font-size:26px;margin:6px 0 4px;letter-spacing:-.01em}
.lede{color:var(--sub);font-size:14.5px;margin:0}
.updated{color:var(--sub);font-size:12.5px;margin-top:10px}
.note{background:var(--warn-bg);border:1px solid var(--warn-line);color:var(--warn-ink);
  border-radius:14px;padding:14px 16px;margin:18px 0 6px;font-size:13.5px}
.note ol,.note ul{margin:8px 0 0;padding-left:20px}.note li{margin:3px 0}
h2.sec{font-size:14px;color:var(--sub);letter-spacing:.02em;margin:30px 4px 10px;font-weight:700;display:flex;align-items:center;gap:8px}
h2.sec::after{content:"";flex:1;height:1px;background:var(--line)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 16px 14px;margin:10px 0;box-shadow:var(--shadow)}
.head{display:flex;align-items:flex-start;gap:12px}
.ic{width:44px;height:44px;border-radius:12px;flex:0 0 44px;display:grid;place-items:center;font-size:22px;
  background:linear-gradient(135deg,rgba(13,110,253,.14),rgba(10,125,85,.14))}
.ttl{flex:1;min-width:0}
.name{font-size:16.5px;font-weight:700;margin:0;letter-spacing:-.01em}
.name a{text-decoration:none;color:inherit}
.desc{color:var(--sub);font-size:13.5px;margin:2px 0 0}
.meta{margin:11px 0 0;display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:11.5px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--sub);background:transparent;white-space:nowrap}
.tag.ok{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 35%,transparent)}
.tag.warn{color:var(--warn-ink);background:var(--warn-bg);border-color:var(--warn-line)}
.tag.demo{color:var(--demo-ink);background:var(--demo-bg);border-color:var(--line)}
.pkg{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px;color:var(--sub)}
.row{display:flex;align-items:center;gap:10px;margin-top:13px;flex-wrap:wrap}
a.dl{flex:1;min-width:150px;text-decoration:none;text-align:center;background:var(--brand);color:var(--brand-ink);
  font-weight:700;font-size:15px;padding:12px 14px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:filter .15s}
a.dl:active{filter:brightness(.92)}
a.dl .sz{font-weight:500;opacity:.85;font-size:12.5px}
a.guide{flex:0 0 auto;text-decoration:none;text-align:center;border:1px solid var(--line);color:var(--ink);
  font-weight:600;font-size:14px;padding:12px 16px;border-radius:12px;background:var(--card)}
.hint{color:var(--sub);font-size:12.5px;margin-top:9px}.hint.warn{color:var(--warn-ink)}
footer{margin:34px 4px 0;color:var(--sub);font-size:12px;border-top:1px solid var(--line);padding-top:16px}
footer code{font-family:ui-monospace,Menlo,Consolas,monospace}
/* guide page */
.back{display:inline-block;margin:22px 4px 0;color:var(--sub);text-decoration:none;font-size:13.5px}
.gh{display:flex;align-items:flex-start;gap:14px;margin:12px 4px 4px}
.gh .ic{width:52px;height:52px;flex:0 0 52px;font-size:26px}
.gh h1{margin:0;font-size:23px}
.gh .tag{margin-top:8px}
.spec{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
.spec .kv{font-size:12.5px;color:var(--sub);border:1px solid var(--line);border-radius:10px;padding:6px 10px}
.spec .kv b{color:var(--ink);font-weight:600}
.gsec{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 18px;margin:14px 0;box-shadow:var(--shadow)}
.gsec h3{margin:0 0 8px;font-size:16px}
.gsec p{margin:6px 0;font-size:14.5px}
.gsec ol,.gsec ul{margin:8px 0;padding-left:22px}.gsec li{margin:5px 0;font-size:14.5px}
.dlbar{position:sticky;bottom:0;padding:12px 0 calc(10px + env(safe-area-inset-bottom));background:linear-gradient(to top,var(--bg) 70%,transparent)}