:root{
--bg: #0b0d10; --fg:#e7ecf3; --muted:#9aa6b2; --card:#12151a; --brand:#6ea8fe;
--ok:#2ecc71; --warn:#f39c12; --err:#ff6b6b; --border:#1d232c;
}
@media (prefers-color-scheme: light){
:root{ --bg:#f6f7fb; --fg:#212938; --muted:#5b6472; --card:#ffffff; --brand:#3867d6; --border:#e6e8ef; }
}
*{box-sizing:border-box}
html,body{height:100%}
body{
margin:0; background:var(--bg); color:var(--fg); font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Apple SD Gothic Neo','Noto Sans KR',sans-serif;
}
.container{max-width:1200px; margin:0 auto; padding:24px}