/* ---------------------------------------------------------------------
   Gallery — masonry grid (true CSS-columns masonry, no JS layout math)
--------------------------------------------------------------------- */

.masonry {
    column-count: 1;
    column-gap: 0.85rem;
}

@media (min-width: 560px) {
    .masonry { column-count: 2; }
}

@media (min-width: 860px) {
    .masonry { column-count: 3; }
}

@media (min-width: 1280px) {
    .masonry { column-count: 4; }
}

.masonry__item {
    display: block;
    position: relative;
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    margin-bottom: 0.85rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-paper-alt);
}

.masonry__item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-fast);
}

.masonry__item:hover img,
.masonry__item:focus-visible img {
    transform: scale(1.035);
}

.masonry__item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.28), transparent 45%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.masonry__item:hover::after,
.masonry__item:focus-visible::after {
    opacity: 1;
}


/* ---------------------------------------------------------------------
   Lightbox
--------------------------------------------------------------------- */

.lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(8, 12, 8, 0.92);
    z-index: 1000;
    padding: 1.5rem;
}

.lightbox.is-open {
    display: flex;
}

.lightbox__img {
    max-width: min(92vw, 1100px);
    max-height: 86vh;
    width: auto;
    height: auto;
    border-radius: var(--radius-sm);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.lightbox__close,
.lightbox__nav {
    position: absolute;
    color: var(--color-white);
    width: 2.75rem;
    height: 2.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    transition: background var(--transition-fast);
}

.lightbox__close:hover,
.lightbox__nav:hover {
    background: rgba(255, 255, 255, 0.24);
}

.lightbox__close svg,
.lightbox__nav svg {
    width: 1.4em;
    height: 1.4em;
}

.lightbox__close {
    top: 1.25rem;
    right: 1.25rem;
}

.lightbox__nav--prev {
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__nav--next {
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__counter {
    position: absolute;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    opacity: 0.85;
}

@media (max-width: 560px) {
    .lightbox__nav {
        width: 2.25rem;
        height: 2.25rem;
    }

    .lightbox__nav--prev { left: 0.5rem; }
    .lightbox__nav--next { right: 0.5rem; }
}