:root{--bg:#fff;--fg:#09090b;--muted:#71717a;--card:#fff;--line:#e4e4e7;--soft:#f4f4f5;--accent:#18181b}
@media (prefers-color-scheme:dark){:root{--bg:#09090b;--fg:#fafafa;--muted:#a1a1aa;--card:#09090b;--line:#27272a;--soft:#18181b;--accent:#fafafa}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;overflow-wrap:anywhere;background:var(--bg);color:var(--fg);font:15px/1.7 Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-underline-offset:3px;text-decoration-color:var(--line)}
a:hover{text-decoration-color:currentColor}
a:focus-visible{outline:none;background:var(--soft);border-radius:4px}
.wrap{max-width:720px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;min-height:56px;padding-top:8px;padding-bottom:8px;gap:4px 12px}
.logo{font-weight:700;text-decoration:none;letter-spacing:-.01em}
nav{display:flex;gap:2px;align-items:center;flex-wrap:wrap;min-width:0}
.lang{display:inline-flex;gap:2px}
nav a,.lang a{font-size:13px;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:6px}
nav a:hover,.lang a:hover,nav a[aria-current],.lang a[aria-current]{background:var(--soft);color:var(--fg)}
main{padding:40px 0 64px}
h1{font-size:28px;line-height:1.25;letter-spacing:-.02em;margin:0 0 8px}
h2{font-size:18px;letter-spacing:-.01em;margin:32px 0 8px}
h3{font-size:15px;margin:24px 0 6px}
.sub{color:var(--muted);margin:0 0 28px}
.prose p,.prose li{color:var(--fg)}
.prose ul,.prose ol{padding-left:20px}
.prose table{border-collapse:collapse;width:100%;font-size:14px;display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
.prose code{background:var(--soft);padding:1px 5px;border-radius:4px;font-size:13px}
.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.prose img{max-width:100%;height:auto;border-radius:8px}
.grid{display:grid;gap:12px}
.card{border:1px solid var(--line);border-radius:10px;padding:16px;background:var(--card);box-shadow:0 1px 2px rgba(0,0,0,.04)}
.card h3{margin:0 0 2px;font-size:15px}
.card p{margin:0 0 10px;color:var(--muted);font-size:14px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:12px;text-decoration:none;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--fg)}
.chip:hover{background:var(--line)}
.btn{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:8px;background:var(--accent);color:var(--bg);text-decoration:none;font-size:14px;font-weight:500}
.btn:hover{opacity:.9}
.note{font-size:13px;color:var(--muted);background:var(--soft);border-radius:8px;padding:10px 14px;margin:0 0 28px}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:20px;padding-bottom:32px}
footer a{color:var(--muted)}