:root{--bg:#f6f7fb;--card:#fff;--line:rgba(15,23,42,.1);--text:#0b1220;--muted:rgba(15,23,42,.6);--shadow:0 10px 26px rgba(2,6,23,.06);--r:18px}*{box-sizing:border-box}body,html{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}a{color:inherit;text-decoration:none}