body {
    font-family: "Courier New", Courier, monospace;
    background-color: #333;
    color: #c0c0c0;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}
.container {
    display: flex;
    max-width: 1000px;
    margin: 20px auto;
    background: #333;
    border: 1px solid #0f0;
}
.sidebar {
    width: 200px;
    padding: 20px;
    background: #eee;
    border-right: 1px solid #ccc;
}
.sidebar h2 { font-size: 1.2em; border-bottom: 1px solid #999; }
.sidebar ul { list-style: none; padding: 0; }
.sidebar li { margin-bottom: 10px; }
.sidebar a { text-decoration: none; color: #0066cc; }
.content {
    flex: 1;
    padding: 20px 40px;
}
pre {
    background: #222;
    color: #0f0;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}