:root { color-scheme: light dark; font-family: system-ui, sans-serif; line-height: 1.65; }
body { margin: 0; }
main { box-sizing: border-box; max-width: 48rem; margin: 0 auto; padding: 2rem 1.25rem 4rem; overflow-wrap: anywhere; }
h1, h2 { line-height: 1.3; }
h2 { margin-top: 2rem; }