.page-header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 4rem 0 3rem;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

.books-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 3rem;
}

.book-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

.book-header {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #f3f4f6;
}

.book-icon {
    font-size: 3rem;
}

.book-meta {
    flex: 1;
}

.book-title {
    font-size: 1.5rem;
    color: #1f2937;
    margin-bottom: 0.3rem;
}

.book-author {
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.book-rating {
    font-size: 1.2rem;
}

.book-content h4 {
    color: #2563eb;
    margin: 1rem 0 0.5rem;
}

.book-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.book-content li {
    margin-bottom: 0.5rem;
    color: #4b5563;
}

.book-content p {
    color: #4b5563;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.book-date {
    color: #9ca3af;
    font-size: 0.9rem;
    margin-top: 1rem;
    font-style: italic;
}

.book-placeholder {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
}

.placeholder-content {
    text-align: center;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.placeholder-content h3 {
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.placeholder-content p {
    color: #9ca3af;
}

.currently-reading {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.currently-reading h2 {
    margin-bottom: 1rem;
}

.current-book {
    background: rgba(255,255,255,0.1);
    padding: 1.5rem;
    border-radius: 8px;
}

.reading-note {
    margin-top: 0.5rem;
    opacity: 0.9;
    font-style: italic;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .book-header {
        flex-direction: column;
        text-align: center;
    }
}