body.lightbox-open { overflow: hidden; }

.dc-lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr) 76px;
    grid-template-rows: minmax(0, 1fr) auto;
    align-items: center;
    background: rgba(0, 0, 0, .9);
    animation: dc-lightbox-fade .2s ease;
}

@keyframes dc-lightbox-fade { from { opacity: 0; } to { opacity: 1; } }

.dc-lightbox-stage {
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
    min-height: 0;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 64px 16px 16px;
}

.dc-lightbox-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
    cursor: zoom-in;
    touch-action: none;
    transition: transform .12s ease-out;
}

.dc-lightbox-image.is-zoomed { cursor: grab; }
.dc-lightbox-image.is-zoomed:active { cursor: grabbing; }
.dc-lightbox-image.is-zoom-interacting { transition: none; }

.dc-lightbox-close,
.dc-lightbox-nav {
    border: 0;
    color: #fff;
    background: rgba(255, 255, 255, .12);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
}

.dc-lightbox-close:hover,
.dc-lightbox-nav:hover { background: rgba(255, 255, 255, .28); }

.dc-lightbox-close {
    position: absolute;
    top: 16px;
    right: 20px;
    z-index: 1;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    outline: none;
    font-size: 32px;
}

.dc-lightbox-nav {
    position: fixed;
    top: 50%;
    z-index: 1;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 36px;
    transform: translateY(-50%);
    user-select: none;
}

.dc-lightbox-prev { left: 16px; }
.dc-lightbox-next { right: 16px; }

.dc-lightbox-thumbnails {
    grid-column: 1 / -1;
    grid-row: 2;
    display: flex;
    gap: 8px;
    max-width: min(90vw, 900px);
    margin: 0 auto 18px;
    padding: 6px;
    overflow-x: auto;
    scrollbar-width: thin;
}

.dc-lightbox-thumb {
    flex: 0 0 64px;
    width: 64px;
    height: 46px;
    padding: 0;
    overflow: hidden;
    border: 2px solid transparent;
    border-radius: 5px;
    background: transparent;
    cursor: pointer;
    opacity: .65;
}

.dc-lightbox-thumb:hover,
.dc-lightbox-thumb.is-active { border-color: #fff; opacity: 1; }
.dc-lightbox-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 600px) {
    .dc-lightbox-overlay { grid-template-columns: minmax(0, 1fr); }
    .dc-lightbox-stage {
        grid-column: 1;
        padding: 60px 12px 10px;
    }
    .dc-lightbox-nav {
        position: absolute;
        top: 50%;
        width: 42px;
        height: 42px;
        font-size: 30px;
    }
    .dc-lightbox-prev { left: 20px; }
    .dc-lightbox-next { right: 20px; }
    .dc-lightbox-thumbnails { max-width: calc(100vw - 24px); margin-bottom: 10px; }
    .dc-lightbox-thumb { flex-basis: 56px; width: 56px; height: 40px; }
}