body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
}

header nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header h1 {
    margin: 0;
}

header a {
    color: white;
    text-decoration: none;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

h1, h2, h3, h4, h5, h6 {
    color: #2c3e50;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h1 {
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5rem;
}

h2 {
    border-bottom: 2px solid #ecf0f1;
    padding-bottom: 0.3rem;
}

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

a:hover {
    text-decoration: underline;
}

ul {
    list-style-type: none;
    padding-left: 0;
}

li {
    margin-bottom: 0.5rem;
}

li a {
    display: block;
    padding: 0.5rem;
    border-left: 3px solid #3498db;
    margin-bottom: 0.25rem;
    background-color: #f8f9fa;
    transition: background-color 0.2s;
}

li a:hover {
    background-color: #e9ecef;
    text-decoration: none;
}

footer {
    background-color: #34495e;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

code {
    background-color: #f1f2f6;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

pre {
    background-color: #f1f2f6;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
}

blockquote {
    border-left: 4px solid #3498db;
    margin: 1rem 0;
    padding-left: 1rem;
    color: #7f8c8d;
}