body{font:16px system-ui;background:#f5f7fb;color:#182435;max-width:620px;margin:8vh auto;padding:24px}main{background:white;border-radius:16px;padding:28px}label{display:block;margin:16px 0}input{display:block;box-sizing:border-box;width:100%;padding:10px}button{padding:10px;cursor:pointer}