body{font-family:Arial;background:#f4f7fb;display:flex;justify-content:center;align-items:center;height:100vh}
.box{background:#fff;padding:30px;border-radius:12px;width:300px;box-shadow:0 10px 30px rgba(0,0,0,0.1)}
input{width:100%;padding:10px;margin:10px 0;border:1px solid #ddd;border-radius:8px}
button{width:100%;padding:10px;background:#2f6b63;color:#fff;border:none;border-radius:8px;cursor:pointer}