:root { color-scheme: light; font-family: system-ui, sans-serif; background: #fff8f2; color: #38332d; }
* { box-sizing: border-box; }
body { margin: 0; }
main { width: min(100%, 440px); margin: 24px auto; }
#challenge { min-height: 65px; }
p, noscript { display: block; margin: 20px 16px; font-size: 16px; line-height: 1.5; text-align: center; }