*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{color:#000;background:#fff;font-family:Arial,sans-serif}.page{max-width:420px;margin:40px auto;padding:0 16px}.form{gap:8px;display:grid}input,button{color:#000;font:inherit;background:#fff;border:1px solid #000;padding:8px}button{cursor:pointer}.linkButton{margin-top:8px}