body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    background-color: #f4f4f4;
}

h1 {
    color: #333;
    text-align: center;
    border-bottom: 3px solid #0066cc;
    padding-bottom: 15px;
}

section {
    background-color: white;
    margin: 20px 0;
    padding: 25px;
    border-left: 5px solid #0066cc;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h2 {
    color: #0066cc;
    margin-top: 0;
}

p {
    color: #555;
    margin: 10px 0;
}

ul {
    margin: 15px 0;
    padding-left: 25px;
}

li {
    margin: 8px 0;
    color: #555;
}

ol {
    margin: 15px 0;
    padding-left: 25px;
}

a {
    color: #0066cc;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    text-decoration: underline;
}

summary {
    cursor: pointer;
    color: #0066cc;
    font-weight: bold;
    padding: 10px;
    background-color: #f0f7ff;
    border-radius: 3px;
    margin: 10px 0;
}

summary:hover {
    background-color: #e0f0ff;
}

details {
    margin: 15px 0;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 3px;
}