body{font-family:sans-serif;background:#eee;display:flex;justify-content:center;align-items:center;height:100vh;margin:0;}.container{background:white;padding:30px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,0.1);width:300px;}input{width:100%;padding:10px;margin:10px 0;box-sizing:border-box;}button{width:100%;padding:10px;background:#007bff;color:white;border:none;border-radius:4px;cursor:pointer;}