body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #001f3f; /* dark blue background */
    color: #f0f0f0;
    text-align: center;
}

.container {
    padding-top: 50px;
}

h1 {
    color: #7FDBFF;
}

form {
    background: #011f4a;
    padding: 20px;
    border-radius: 8px;
    display: inline-block;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="submit"] {
    margin: 5px;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #ccc;
}

input[type="submit"] {
    background-color: #0074D9;
    color: white;
    cursor: pointer;
}

.error {
    color: #FF4136;
}