:root{color-scheme:light dark;font-family:system-ui,sans-serif}body{margin:0}main{max-width:28rem;margin:0 auto;padding:2rem 1rem}form{display:grid;gap:.75rem}input,button{font:inherit;font-size:1rem;padding:.6rem .75rem}[role=alert]{color:#b00020;margin:0}