body {
    background-color: #121212;
    color: #ffffff;
}

.header-container {
    background-color: #1e1e1e;
}

.header-logo img {
    filter: brightness(0) invert(1);
}

#nav ul {
    background-color: #1e1e1e;
}

#nav ul li a {
    color: #ffffff;
}

/* Add more styles as needed */