/* ========================================
   13. Custom Lightbox (галерея изображений)
======================================== */
#custom-lightbox {
    position: fixed;
    inset: 0;
    z-index: var(--z-lightbox);
    display: none;
}

#custom-lightbox.open {
    display: block;
}

#custom-lightbox .lb-backdrop {
    position: absolute;
    inset: 0;
    background: var(--overlay-bg-dark);
    backdrop-filter: blur(4px);
}

#custom-lightbox .lb-content {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--card-widget-padding);
    pointer-events: none;
}

#custom-lightbox .lb-image-wrap {
    max-width: 95vw;
    max-height: 90vh;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lightbox);
    background: var(--lightbox-bg);
    display: flex;
    flex-direction: column;
    pointer-events: auto;
}

#custom-lightbox .lb-image {
    max-width: 95vw;
    max-height: 85vh;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

#custom-lightbox .lb-caption {
    padding: 0.75rem 1rem;
    color: var(--white-alpha-85);
    font-size: var(--text-caption-wide);
    background: linear-gradient(180deg, transparent 0%, var(--black-alpha-60) 100%);
    text-align: center;
}

#custom-lightbox .lb-close,
#custom-lightbox .lb-prev,
#custom-lightbox .lb-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--white-alpha-92);
    color: var(--dark);
    font-size: var(--text-xl);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    box-shadow: var(--shadow-gallery-ui);
    pointer-events: auto;
    transition: var(--transition-fast);
}

#custom-lightbox .lb-close:focus-visible,
#custom-lightbox .lb-prev:focus-visible,
#custom-lightbox .lb-next:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color-accent);
    outline-offset: var(--focus-ring-offset);
}

#custom-lightbox .lb-close {
    top: 12%;
    right: 3%;
    transform: none;
}

#custom-lightbox .lb-prev { left: 4%; }
#custom-lightbox .lb-next { right: 4%; }

@media (hover: hover) {
    #custom-lightbox .lb-close:hover,
    #custom-lightbox .lb-prev:hover,
    #custom-lightbox .lb-next:hover {
        background: var(--primary-color);
        color: var(--white);
    }
}

/* < md: lightbox адаптация для планшетов/мобильных */
@media (max-width: 767.98px) {
    #custom-lightbox .lb-content {
        padding: 1rem;
    }
    #custom-lightbox .lb-image-wrap {
        max-width: 98vw;
        max-height: 90vh;
    }
    #custom-lightbox .lb-image {
        max-width: 98vw;
        max-height: 80vh;
    }
    #custom-lightbox .lb-prev { left: 2%; }
    #custom-lightbox .lb-next { right: 2%; }
    #custom-lightbox .lb-close {
        right: 5%;
    }
}