:root{font-family:system-ui,sans-serif;color:#20354b;background:#faf7f0;color-scheme:light}
body{margin:0;padding:32px 20px}main{max-width:540px;margin:5vh auto;background:white;padding:32px;border-radius:20px}
h1{font-size:1.8rem;line-height:1.2}p{line-height:1.6}button{font:inherit;background:#20354b;color:white;border:0;border-radius:10px;padding:14px 22px;cursor:pointer}button:disabled{opacity:.55;cursor:default}button:focus-visible{outline:3px solid #b37c13;outline-offset:4px}