/* =============================================================================
   acv.lightbox.css
   Styly pro in-house lightbox (náhrada za prettyPhoto.css)
   ============================================================================= */

/* Overlay – zabere celou obrazovku */
#acv-lightbox-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 9999;
    /* Flex centrování obsahu */
    align-items: center;
    justify-content: center;
}

#acv-lightbox-overlay.acv-lb-visible {
    display: flex;
}

/* Scrollování zakázáno na body při otevřeném lightboxu */
body.acv-lb-open {
    overflow: hidden;
}

/* Tmavé poloprůhledné pozadí */
#acv-lightbox-overlay .acv-lb-backdrop {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    cursor: pointer;
}

/* Kontejner – relativní, aby se daly absolutně pozicovat tlačítka */
#acv-lightbox-overlay .acv-lb-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90vw;
    max-height: 90vh;
}

/* Obal obrázku */
#acv-lightbox-overlay .acv-lb-imgwrap {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 90vw;
    max-height: 80vh;
    overflow: hidden;
}

/* Obrázek samotný */
#acv-lightbox-overlay .acv-lb-img {
    display: block;
    max-width: 90vw;
    max-height: 80vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border: none;
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.6);
    background: #111;
    transition: opacity 0.2s ease;
}

/* Stav načítání */
#acv-lightbox-overlay .acv-lb-img.acv-lb-loading {
    opacity: 0.3;
}

/* Zavírací tlačítko */
#acv-lightbox-overlay .acv-lb-close {
    position: absolute;
    top: -36px;
    right: 0;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0.8;
    transition: opacity 0.15s;
}

#acv-lightbox-overlay .acv-lb-close:hover {
    opacity: 1;
}

/* Navigační šipky */
#acv-lightbox-overlay .acv-lb-prev,
#acv-lightbox-overlay .acv-lb-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.45);
    border: none;
    color: #fff;
    font-size: 36px;
    line-height: 1;
    cursor: pointer;
    padding: 8px 14px;
    border-radius: 3px;
    opacity: 0.75;
    transition: opacity 0.15s, background 0.15s;
    z-index: 2;
}

#acv-lightbox-overlay .acv-lb-prev:hover,
#acv-lightbox-overlay .acv-lb-next:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.7);
}

#acv-lightbox-overlay .acv-lb-prev {
    left: -56px;
}

#acv-lightbox-overlay .acv-lb-next {
    right: -56px;
}

/* Patička – popisek a čítač */
#acv-lightbox-overlay .acv-lb-footer {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    padding: 0 2px;
}

#acv-lightbox-overlay .acv-lb-caption {
    color: #ddd;
    font-size: 13px;
    font-family: Arial, sans-serif;
    max-width: 80%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#acv-lightbox-overlay .acv-lb-counter {
    color: #999;
    font-size: 12px;
    font-family: Arial, sans-serif;
    white-space: nowrap;
    margin-left: 12px;
}