* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #fafafa;
    color: #333;
    font-family: 'Courier New', monospace;
    line-height: 1.6;
    padding: 40px 20px;
}

header {
    border-bottom: 1px solid #ddd;
    padding-bottom: 20px;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2em;
    margin-bottom: 10px;
    color: #000;
}

header p {
    color: #666;
    font-size: 0.9em;
}

main {
    max-width: 900px;
    margin: 0 auto;
}

section {
    margin-bottom: 30px;
}

h2 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: #000;
    border-left: 3px solid #000;
    padding-left: 10px;
}

a {
    color: #0066cc;
    text-decoration: none;
    border-bottom: 1px solid #0066cc;
}

a:hover {
    background-color: #f0f0f0;
    color: #004499;
}

ul, ol {
    margin-left: 20px;
}

li {
    margin-bottom: 10px;
    color: #333;
}

footer {
    border-top: 1px solid #ddd;
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
    color: #999;
    font-size: 0.9em;
}

code {
    background-color: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    color: #d73a49;
    border: 1px solid #eaeaea;
}