*{box-sizing:border-box}body{margin:0;background:#f7f5ee;color:#203c38;font:16px/1.7 system-ui,sans-serif;min-height:100vh;display:grid;place-items:center;padding:24px}main{max-width:480px;width:100%}h1{font-size:30px;line-height:1.3}label{display:block}input,button{width:100%;padding:14px;border-radius:9px;border:1px solid #ccc;font:inherit;margin:8px 0}button{background:#346c58;color:white;cursor:pointer}small{display:block;color:#586961;margin-top:24px}#message{color:#9b3825}