.dynamic-close-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: #fff;
    border: none;
    font-size: 24px;
    font-weight: bold;
    color: #333;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    z-index: 10;
}
.dynamic-close-btn:hover {
    background-color: #eee;
}
.fixed-image-container.product-detail-image {
    position: relative; /* Bu olmazsa absolute konum işe yaramaz */
}