/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 900px;
    margin: 30px auto;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
    padding: 0 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 20px;
}

header h1 {
    font-size: 2.4rem;
    color: #2c3e50;
    margin-bottom: 8px;
}

header p {
    font-weight: 600;
    color: #34495e;
    font-style: italic;
}

h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 6px;
    margin-top: 40px;
}

h3 {
    font-size: 1.4rem;
    color: #34495e;
    margin-top: 25px;
}

p, li {
    font-size: 1rem;
    color: #444;
}

ul, ol {
    padding-left: 22px;
    margin-bottom: 18px;
}

li {
    margin-bottom: 8px;
}

strong {
    color: #2980b9;
}

pre {
    background-color: #272b30;
    color: #f1f1f1;
    padding: 16px;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.9rem;
    border: 1px solid #444;
}

code {
    font-family: 'Courier New', Courier, monospace;
}

footer {
    text-align: center;
    font-size: 0.9rem;
    color: #7f8c8d;
    margin-top: 50px;
    border-top: 1px solid #ddd;
    padding-top: 20px;
}