body {
    font-family: 'Josefin Sans', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
}

header {
    background-color: white;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

header h1 {
    font-family: 'Literata', Georgia, serif;
    margin: 0;
    font-size: 1.5rem;
    color: #1a1a1a;
    max-width: 1200px;
    margin: 0 auto;
}

header h1 a {
    color: #1a1a1a;
    text-decoration: none;
}

header h1 a:hover {
    color: #334155;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem 3rem 1rem;
}

.book-container {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.book-header {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.book-cover {
    flex-shrink: 0;
}

.book-cover img {
    max-width: 250px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 2px 2px 8px rgba(0,0,0,0.2);
}

.book-meta {
    flex: 1;
    min-width: 250px;
}

.book-title {
    font-family: 'Literata', Georgia, serif;
    margin: 0 0 0.5rem 0;
    font-size: 2.5rem;
    color: #1a1a1a;
    line-height: 1.2;
}

.book-author {
    margin: 0 0 0.25rem 0;
    color: #666;
    font-size: 1.5rem;
}

.book-year {
    margin: 0 0 1.5rem 0;
    color: #666;
    font-size: 1.25rem;
}

.download-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: background-color 0.2s;
}

.epub-btn {
    background-color: #334155;
    color: white;
}

.epub-btn:hover {
    background-color: #475569;
}

.markdown-btn {
    background-color: #f3f4f6;
    color: #1f2937;
    border: 1px solid #d1d5db;
}

.markdown-btn:hover {
    background-color: #e5e7eb;
}

.book-description {
    margin: 2rem 0 0 0;
    color: #4a5568;
    font-size: 1.1rem;
    line-height: 1.7;
}

.book-description a {
    color: inherit;
    text-decoration: none;
    font-weight: 600;
}

.book-description a:hover {
    text-decoration: underline;
}

.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    color: #334155;
    text-decoration: none;
    font-weight: 500;
}

.back-link:hover {
    text-decoration: underline;
}

footer {
    margin-top: 3rem;
    text-align: center;
    padding: 2rem;
    color: #666;
    border-top: 1px solid #e5e7eb;
}

@media (max-width: 640px) {
    .book-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .book-title {
        font-size: 2rem;
    }

    .download-links {
        justify-content: center;
    }
}