:root{font-family:system-ui,sans-serif;color:#182a43;background:#f1f4f8}main{max-width:850px;margin:32px auto;background:white;border:1px solid #d9e1ec;padding:24px;border-radius:12px}h1{font-size:1.6rem}fieldset{border:1px solid #d9e1ec;margin:20px 0;padding:16px}button,input{font:inherit;padding:8px;margin:4px}button{cursor:pointer;background:#eef4ff;border:1px solid #9eb6d9;border-radius:6px}button:focus-visible,input:focus-visible{outline:3px solid #286cdc}label{display:block}#error{color:#9b2037}li{overflow-wrap:anywhere;padding:6px}