body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

header {
    background: #24292f;
    color: white;
    padding: 1rem;
}

nav a {
    color: white;
    margin-right: 1rem;
    text-decoration: none;
}

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

main {
    padding: 1.5rem;
}

footer {
    background: #f4f4f4;
    text-align: center;
    padding: 1rem;
}
``