body {
    font-family: 'Times New Roman', Times, serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f8f9fa;
    color: #333;
}

header {
    background: #007bff;
    color: white;
    padding: 1rem 0;
    text-align: center;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    background: white;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h2, h4 {
    color: #000000;
}

pre {
    background: #f1f3f5;
    padding: 1rem;
    border-left: 4px solid #0056b3;
    overflow-x: auto;
    border-radius: 4px;
}

code {
    font-family: Consolas, "Courier New", monospace;
    color: #d63384;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 0.5rem;
}