:root{color-scheme:dark;font-family:system-ui;background:#0b1011;color:#edf2f4}body{margin:0;min-height:100dvh;display:grid;place-items:center}main{padding:24px;max-width:360px}h2{font-size:28px}p{line-height:1.6;color:#b1c1ca}button{font:inherit;border:0;border-radius:14px;background:#a7c6dc;color:#15222b;padding:14px 20px;min-height:48px;cursor:pointer}button:disabled{opacity:.45;cursor:default}button:focus-visible{outline:3px solid white;outline-offset:4px}