body {
    font-family: Arial, sans-serif;
    background-color: #1e3c72;
    /* Ocean blue theme */
    color: #ffffff;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 10px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
}

nav ul li a:hover {
    text-decoration: underline;
}

.login-container {
    background-color: #007bff;
    padding: 20px;
    border-radius: 10px;
    width: 300px;
    margin: 0 auto;
    text-align: center;
}

.login-container label,
.login-container input,
.login-container button {
    display: block;
    width: 100%;
    margin: 10px 0;
}

button {
    background-color: #1e3c72;
    color: #ffffff;
    border: none;
    padding: 10px;
    cursor: pointer;
}

button:hover {
    background-color: #16355a;
}