body.dark-mode {
    background-color: #121212;
    color: #ffffff;
}

aside.dark-mode, article.dark-mode {
    background-color: #1e1e1e;
    color: #f0f0f0;
}

#dark-mode-toggle {
    cursor: pointer;
    padding: 10px 20px;
    background-color: #007bff;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    margin: 20px;
}

#dark-mode-toggle:hover {
    background-color: #0056b3;
}