:root{color-scheme:light dark}
body{margin:0;background:#fff;color:#1a1a1a;font:16px/1.7 system-ui,"Malgun Gothic",sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 16px}
h1{font-size:28px;line-height:1.3;margin:0 0 16px}
a{color:#0b57d0}
@media (prefers-color-scheme:dark){body{background:#121212;color:#ececec}a{color:#8ab4f8}}