:root{color-scheme:dark}body{margin:0;background:#03060f;color:#e8eef5;font:17px/1.6 "Segoe UI","Trebuchet MS",sans-serif}main{max-width:44rem;margin:auto;padding:48px 20px}a{color:#19b8ff}h1{font-size:2.6rem;line-height:1.1;margin:.4em 0}h2{font-size:1.25rem;margin:1.6em 0 .3em}.todo{background:#ffc65c;color:#171002;padding:10px 14px;font-weight:600}