body {
    font-family: Arial, sans-serif;
    background-color: #000;
    color: #fff;
    margin: 0;
    padding: 0;
}
.container {
    width: 80%;
    max-width: 1000px;
    margin: 50px auto;
    background-color: #fff;
    color: #000;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}
h1, h2 {
    color: #333;
}
h1 {
    text-align: center;
}
.toc {
    background-color: #f4f4f4;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}
.toc ul {
    list-style-type: none;
    padding: 0;
}
.toc ul li {
    margin-bottom: 10px;
}
.toc a {
    text-decoration: none;
    color: #007BFF;
    font-weight: bold;
}
.toc a:hover {
    text-decoration: underline;
}
section {
    margin-bottom: 30px;
}
footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
}