:root{font-family:system-ui,sans-serif;color:#17202a;background:#f4f1ea}body{margin:0}main{max-width:760px;margin:2rem auto;padding:1.25rem;background:#fff;border-radius:12px;box-shadow:0 4px 18px #0001}header{border-bottom:1px solid #ddd;margin-bottom:1rem}label{display:block;margin:1rem 0}textarea{display:block;width:100%;min-height:8rem}select,button,.button{padding:.6rem;border:1px solid #789;border-radius:6px;background:#edf3f7;text-decoration:none;color:inherit}button,.button{cursor:pointer}pre{white-space:pre-wrap;background:#f6f6f6;padding:1rem}