body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
}

.box {
    width: 380px;
    margin: 100px auto;
    padding: 25px;
    background: white;
    border-radius: 8px;
    text-align: center;
}

input {
    width: 90%;
    padding: 10px;
    margin: 8px 0;
}

button {
    padding: 10px 20px;
    cursor: pointer;
}

.error {
    color: red;
}

.success {
    color: green;
}

a {
    display: inline-block;
    margin-top: 15px;
    color: blue;
}