:root { color-scheme: light dark; font: 16px/1.5 system-ui, sans-serif; }
body { margin: 0; }
main { max-width: 1100px; margin: 3rem auto; padding: 0 1rem; }
h1 { margin-bottom: 0; letter-spacing: -.04em; }
h1 + p, .note { opacity: .7; }
button, a { font: inherit; }
button { padding: .4rem .8rem; margin: 0 .5rem .5rem 0; cursor: pointer; }
button:disabled { cursor: default; }
pre { padding: 1rem; border: 1px solid #8886; border-radius: .4rem;
      font: 13px/1.5 ui-monospace, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }