.polozkaobsahkat {
    position: relative;
}

/* lupa */
.big-preview-icon {
    position: absolute;
    bottom: 6px;
    right: 6px;
    background: rgba(255,255,255,0.85);
    color: #666;
    padding: 6px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 5;
}

/* overlay */
#bigPreviewOverlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: none;
    z-index: 9999;
}

/* okno */
#bigPreviewWindow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 95vw;
    height: 95vh;
    transform: translate(-50%, -50%);
    background: #fff;
    overflow: hidden;
}

/* zavřít */
#bigPreviewClose {
    position: absolute;
    top: 8px;
    right: 10px;
    color: #b8b8b8;
    font-size: 22px;
    cursor: pointer;
    z-index: 10;
}

/* obrázek */
#bigPreviewImg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: center center;
}

/* ovládání */
#bigPreviewControls {
    position: absolute;
    bottom: 12px;
    right: 14px;
    color: #b8b8b8;
    font-size: 22px;
}

#bigPreviewControls i {
    margin-left: 14px;
    cursor: pointer;
}

#bigPreviewImg {
    cursor: grab;
}

#bigPreviewImg.dragging {
    cursor: grabbing;
}