/**
 * Ministranti – fotogalerie v článcích + lightbox overlay.
 *
 * Vše je scopováno na .ministranti-gallery / .mg-* , aby se nedotklo
 * zbytku webu. Načítá se globálně (viz index.php), ale aktivuje se jen
 * tam, kde se v obsahu vyskytne .ministranti-gallery (viz JS).
 */

/* --- mřížka náhledů --- */
.ministranti-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    margin: 1.25rem 0;
}

.ministranti-gallery .mg-item {
    display: block;
    overflow: hidden;
    border-radius: 6px;
    background: #f2f2f2;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .18);
    aspect-ratio: 1 / 1;
}

.ministranti-gallery .mg-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .25s ease;
}

.ministranti-gallery .mg-item:hover img,
.ministranti-gallery .mg-item:focus img {
    transform: scale(1.06);
}

.ministranti-gallery .mg-item:focus-visible {
    outline: 3px solid #4f7a28;
    outline-offset: 2px;
}

/* --- lightbox overlay --- */
.mg-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, .9);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease;
}

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

.mg-lightbox__img {
    max-width: 92vw;
    max-height: 86vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, .5);
    user-select: none;
}

.mg-lightbox__btn {
    position: absolute;
    background: rgba(0, 0, 0, .4);
    color: #fff;
    border: 0;
    cursor: pointer;
    line-height: 1;
    border-radius: 50%;
    transition: background .15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mg-lightbox__btn:hover,
.mg-lightbox__btn:focus-visible {
    background: rgba(0, 0, 0, .75);
    outline: none;
}

.mg-lightbox__close {
    top: 16px;
    right: 16px;
    width: 46px;
    height: 46px;
    font-size: 30px;
}

.mg-lightbox__nav {
    top: 50%;
    transform: translateY(-50%);
    width: 54px;
    height: 54px;
    font-size: 34px;
}

.mg-lightbox__prev { left: 16px; }
.mg-lightbox__next { right: 16px; }

.mg-lightbox__counter {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: .9rem;
    background: rgba(0, 0, 0, .4);
    padding: 4px 12px;
    border-radius: 14px;
}

/* skrýt navigaci, pokud má galerie jen jeden snímek */
.mg-lightbox.is-single .mg-lightbox__nav,
.mg-lightbox.is-single .mg-lightbox__counter {
    display: none;
}

@media (max-width: 600px) {
    .ministranti-gallery {
        grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
        gap: 6px;
    }
    .mg-lightbox__nav { width: 44px; height: 44px; font-size: 28px; }
}