body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background: #f5f5f5;
}

h1, h2, h3, h4, h5, h6 {
    color: #667eea;
    margin-top: 30px;
    margin-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 10px;
}

h1 { font-size: 2em; }
h2 { font-size: 1.7em; }
h3 { font-size: 1.4em; }

p {
    margin-bottom: 15px;
    line-height: 1.8;
}

ul, ol {
    margin-left: 30px;
    margin-bottom: 15px;
}

li {
    margin-bottom: 8px;
}

code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
}

pre {
    background: #f4f4f4;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    border-left: 4px solid #667eea;
}

table {
    border-collapse: collapse;
    width: 100%;
    margin: 20px 0;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

table th {
    background: #667eea;
    color: white;
}

a {
    color: #667eea;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

blockquote {
    border-left: 4px solid #667eea;
    padding-left: 20px;
    margin-left: 0;
    color: #666;
    font-style: italic;
}