:root{--bg:#fff;--fg:#1c1c1e;--muted:#6b6b72;--line:#e3e3e8;--accent:#e8743b}
@media (prefers-color-scheme:dark){:root{--bg:#161618;--fg:#f2f2f4;--muted:#9a9aa3;--line:#2c2c30;--accent:#f0955f}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.7 system-ui,-apple-system,"Segoe UI","Noto Sans KR","Noto Sans JP",sans-serif;display:flex;flex-direction:column;min-height:100vh}
header,footer,main{width:100%;max-width:720px;margin:0 auto;padding:16px 20px}
header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
header img{height:36px;width:auto;vertical-align:middle}
header a{color:var(--fg);text-decoration:none}
.lang{font-size:14px;color:var(--accent)!important}
main{flex:1;padding-top:40px}
h1{font-size:28px;margin:0 0 16px}
.lead{font-size:18px}
a{color:var(--accent)}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer nav a{margin-right:16px;color:var(--muted)}
footer p{margin:8px 0 0}