body {
    font-family: 'Georgia', 'Times New Roman', serif;
    line-height: 1.6;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    background-color: #fafafa;
    color: #333;
}

h1 {
    color: #2c3e50;
    font-size: 2.5em;
    margin-bottom: 10px;
    text-align: center;
}

h2 {
    color: #34495e;
    font-size: 1.3em;
    margin-bottom: 30px;
    text-align: center;
    font-weight: normal;
    font-style: italic;
}

h3 {
    color: #2c3e50;
    font-size: 1.2em;
    margin-top: 40px;
    margin-bottom: 10px;
}

h4 {
    color: #34495e;
    font-size: 1.1em;
    margin-top: 30px;
    margin-bottom: 15px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 5px;
}

ul {
    margin-bottom: 20px;
}

li {
    margin-bottom: 8px;
}

ul ul {
    margin-top: 8px;
    margin-bottom: 8px;
}

.author-info {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.1em;
    color: #555;
}

.description {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 40px;
}

.citation {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    line-height: 1.4;
    white-space: pre-line;
}

.citation-label {
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 10px;
    font-family: 'Georgia', serif;
}

.colab-link {
    display: inline-block;
    margin-left: 8px;
    margin-right: 4px;
    padding: 2px 8px;
    background-color: #f9ab00;
    color: white;
    text-decoration: none;
    border-radius: 3px;
    font-size: 0.75em;
    font-weight: bold;
    font-family: 'Arial', sans-serif;
    vertical-align: middle;
    transition: background-color 0.2s;
    white-space: nowrap;
}

.colab-link:hover {
    background-color: #e89a00;
    color: white;
    text-decoration: none;
}

.colab-link::before {
    content: "📓 ";
}

/* For sections with multiple notebooks, you can wrap them in a span */
.colab-links {
    display: inline;
    margin-left: 8px;
}

.colab-links .colab-link {
    margin-left: 0;
    margin-right: 4px;
}