/* =========================================================================
   Zublo gallery — zelfstandige masonry-gallerij + lightbox
   Geen externe afhankelijkheden (geen Spectra/UAG).
   ========================================================================= */

.zublo-gallery {
    margin: 0;
    padding: 0;
    /* Masonry via CSS-kolommen */
    column-gap: 12px;
    column-count: 3;
}

@media (max-width: 900px) {
    .zublo-gallery {
        column-count: 2;
    }
}

@media (max-width: 480px) {
    .zublo-gallery {
        column-count: 1;
    }
}

.zublo-gallery__item {
    margin: 0 0 12px;
    padding: 0;
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
    display: block;
    overflow: hidden;
    border-radius: 6px;
    line-height: 0;
}

.zublo-gallery__link {
    display: block;
    cursor: zoom-in;
}

.zublo-gallery__img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.zublo-gallery__link:hover .zublo-gallery__img {
    transform: scale(1.03);
    opacity: 0.92;
}

/* -------------------------------------------------------------------------
   Lightbox-overlay
   ------------------------------------------------------------------------- */
.zublo-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.9);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.zublo-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.zublo-lightbox__img {
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    user-select: none;
}

.zublo-lightbox__btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.4);
    border: none;
    color: #fff;
    width: 48px;
    height: 48px;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.zublo-lightbox__btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

.zublo-lightbox__btn--prev {
    left: 16px;
}

.zublo-lightbox__btn--next {
    right: 16px;
}

.zublo-lightbox__close {
    position: absolute;
    top: 16px;
    right: 16px;
    transform: none;
}

.zublo-lightbox__btn[hidden] {
    display: none;
}