:root{color-scheme:light dark}body{font:16px/1.5 ui-sans-serif,system-ui,-apple-system,Helvetica Neue,sans-serif;max-width:40rem;margin:4rem auto;padding:0 1.25rem}h1{font-size:1.25rem;margin-bottom:.25rem}button{font:inherit;padding:.5rem 1rem;border:1px solid currentColor;border-radius:.375rem;background:transparent;color:inherit;cursor:pointer}button:hover{background:#7f7f7f1a}.foot{margin-top:2rem;font-size:.9em}