body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
}

h1, h2, h3, h4 {
    color: #2c3e50;
}

a {
    color: #3498db;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

code {
    background-color: #f4f4f4;
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 90%;
}

pre {
    background-color: #f4f4f4;
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
}

.todo {
    background-color: #fffae6;
    border-left: 4px solid #ffcc00;
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
}