:root { color-scheme: light dark; }
body { margin: 0; font: 16px/1.55 system-ui, sans-serif; background: Canvas; color: CanvasText; }
main { max-width: 42rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.2rem; margin-top: 2rem; }
pre { overflow-x: auto; padding: 0.75rem 1rem; border: 1px solid GrayText; border-radius: 6px; }
code, pre { font-family: ui-monospace, monospace; font-size: 0.9em; }
a { color: LinkText; }