body {
    font-family: 'Garamond', 'Georgia', 'Times New Roman', serif;
    line-height: 1.8;
    max-width: 750px;
    margin: 0 auto;
    padding: 60px 40px;
    background-color: #fffef9;
    color: #2a2a2a;
    font-size: 18px;
}

h1 {
    font-size: 2.8em;
    text-align: center;
    margin-bottom: 0.3em;
    color: #8b4513;
    font-weight: normal;
    letter-spacing: 2px;
    font-variant: small-caps;
}

.subtitle {
    text-align: center;
    font-style: italic;
    font-size: 1.2em;
    margin-bottom: 3em;
    color: #666;
}

.epigraph {
    text-align: center;
    font-style: italic;
    font-size: 1.1em;
    margin: 3em 0;
    color: #666;
    padding: 30px 0;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
}

h2 {
    font-size: 1.8em;
    color: #8b4513;
    margin-top: 3em;
    margin-bottom: 1.5em;
    text-align: center;
    font-variant: small-caps;
    letter-spacing: 1px;
}

h3 {
    font-size: 1.4em;
    color: #a0522d;
    margin-top: 2.5em;
    margin-bottom: 1.2em;
    font-style: italic;
}

p {
    text-align: justify;
    margin-bottom: 1.4em;
    text-indent: 2em;
}

p:first-of-type {
    text-indent: 0;
}

h2 + p, h3 + p, blockquote + p {
    text-indent: 0;
}

blockquote {
    margin: 2em 2em;
    font-style: italic;
    color: #555;
    border-left: 3px solid #deb887;
    padding-left: 1.5em;
}

blockquote p {
    text-indent: 0;
}

a {
    color: #8b4513;
    text-decoration: none;
    border-bottom: 1px dotted #8b4513;
}

a:hover {
    color: #a0522d;
    border-bottom: 1px solid #a0522d;
}

.chapter-break {
    text-align: center;
    margin: 3em 0;
    color: #8b4513;
    font-size: 1.5em;
}

.emphasis {
    font-style: italic;
    font-weight: bold;
}

.simulation {
    background-color: #f9f7f4;
    border: 2px solid #8b4513;
    border-radius: 10px;
    padding: 25px;
    margin: 30px 0;
    text-align: center;
}

.simulation canvas {
    border: 1px solid #666;
    margin: 15px;
    background: white;
}

.simulation button {
    background-color: #8b4513;
    color: white;
    border: none;
    padding: 10px 20px;
    margin: 5px;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
}

.simulation button:hover {
    background-color: #a0522d;
}

.toc {
    background-color: #f9f7f4;
    padding: 30px;
    margin: 40px 0;
    border: 1px solid #deb887;
    border-radius: 5px;
}

.toc h2 {
    margin-top: 0;
    color: #8b4513;
}

.toc ol {
    list-style-type: upper-roman;
    color: #666;
}

.toc ol ol {
    list-style-type: decimal;
    margin-top: 10px;
}

.toc a {
    color: #666;
    border-bottom: none;
}

.toc a:hover {
    color: #8b4513;
}

footer {
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid #ddd;
    text-align: center;
    color: #666;
    font-size: 0.9em;
    font-style: italic;
}

.part-transition {
    background-color: #f5f3f0;
    border-left: 4px solid #8b4513;
    padding: 30px;
    margin: 40px 0;
    font-style: italic;
}

.part-transition h3 {
    color: #8b4513;
    margin-top: 0;
    font-size: 1.3em;
    text-align: center;
    font-variant: small-caps;
    letter-spacing: 1px;
}

.part-transition p {
    text-indent: 0;
    color: #555;
    margin-bottom: 1.2em;
}

.speculation-note {
    background-color: #fff8dc;
    border: 2px solid #daa520;
    border-radius: 8px;
    padding: 20px;
    margin: 30px 0;
    font-size: 0.95em;
}

.speculation-warning {
    background-color: #ffe4e1;
    border: 2px solid #cd5c5c;
    border-radius: 8px;
    padding: 20px;
    margin: 30px 0;
    font-size: 0.95em;
}

.speculation-note p, .speculation-warning p {
    text-indent: 0;
    margin-bottom: 1em;
}

.speculation-note p:last-child, .speculation-warning p:last-child {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    body {
        padding: 30px 20px;
        font-size: 16px;
    }
    h1 {
        font-size: 2.2em;
    }
}