:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f5f5f5;--foreground:#111;--muted:#666;--surface:#fff;--border:#d6d6d6}*{box-sizing:border-box}body{background:var(--background);color:var(--foreground);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:16px}a{color:inherit;text-decoration:none}main{max-width:780px;margin:0 auto;padding:2rem}