:root { color-scheme: light dark; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
main { max-width: 46rem; margin: 4rem auto; padding: 0 1.5rem; }
h1 { font-size: 1.4rem; font-weight: 600; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
.muted { opacity: .6; font-size: .85rem; }