.recommendation-popup {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    max-width: 400px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    transition: transform 0.3s ease-out, opacity 0.3s ease-out;
    transform: translateY(100px);
    opacity: 0;
}

.recommendation-popup.active {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

.recommendation-content {
    padding: 20px;
}

.recommendation-content h3 {
    font-family: 'EB Garamond', serif;
    color: #3c2f2a;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.close-recommendations {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background 0.3s;
}

.close-recommendations:hover {
    background: #f0f0f0;
}

.recommendation-books {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.recommendation-books .book {
    transform: scale(0.9);
    transition: transform 0.3s;
}

.recommendation-books .book:hover {
    transform: scale(0.95);
}

.recommendation-books .book img {
    max-width: 100px;
    height: auto;
}

.recommendation-books .book p {
    font-size: 0.9rem;
    margin: 5px 0;
}

.recommendation-books .book small {
    font-size: 0.8rem;
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .recommendation-popup {
        bottom: 0;
        right: 0;
        left: 0;
        max-width: 100%;
        border-radius: 12px 12px 0 0;
    }

    .recommendation-books {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
}