@media (max-width: 1200px) {
    .book-detail-header {
        gap: 2rem;
    }
    
    .book-cover-large {
        flex: 0 0 250px;
    }
}

@media (max-width: 992px) {
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .book-detail-header {
        flex-direction: column;
    }
    
    .book-cover-large {
        margin-bottom: 1.5rem;
    }
    
    .search-filters {
        flex-direction: column;
        gap: 1rem;
    }
    
    .filter-group {
        min-width: 100%;
    }
    
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .login-container {
        padding: 1.5rem;
    }
}