:root{color-scheme:light;font-family:system-ui,sans-serif;color:#172e3f;background:#f4f7f9}body{margin:0}main{max-width:40rem;margin:10vh auto;padding:1.5rem}h1{line-height:1.1}a,button{font:inherit;margin:.5rem .8rem .5rem 0}button{padding:.5rem 1rem;border:1px solid #385c71;border-radius:.4rem;background:white;color:#172e3f}a{color:#164e75}button:focus-visible,a:focus-visible{outline:3px solid #edb74c;outline-offset:3px}