:root { color-scheme: light dark; font-family: system-ui, sans-serif; line-height: 1.6; }
body { margin: 0; padding: 2rem 1.25rem; }
main { max-width: 36rem; margin: 8vh auto; }
h1 { font-size: clamp(1.8rem, 6vw, 2.4rem); line-height: 1.2; }
.context { font-size: 0.95rem; }