/* ==============================
   GALLERY PAGE STYLES
============================== */
body {
    overflow-y: auto;
    overflow-x: hidden;
}

.gallery-page {
    padding: 0 3rem 5rem;
    max-width: 1600px;
    margin: 0 auto;
}

/* ==============================
   MASONRY COLUMNS
============================== */
.photo-columns {
    columns: 3;
    column-gap: 0.75rem;
}

.photo-item {
    break-inside: avoid;
    margin-bottom: 0.75rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: block;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
}

.photo-item img {
    width: 100%;
    height: auto;
    display: block;
    filter: contrast(1.05) brightness(0.95);
    transition: transform 0.6s ease, filter 0.4s ease;
    user-select: none;
    -webkit-user-drag: none;
    pointer-events: none;
}

.photo-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(1, 74, 89, 0.15) 0%, transparent 55%);
    z-index: 1;
    pointer-events: none;
}

.photo-item:hover img {
    transform: scale(1.04);
    filter: contrast(1.05) brightness(1.0);
}


/* ==============================
   LIGHTBOX / CAROUSEL
============================== */
body.lightbox-open {
    overflow: hidden;
}

.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 20, 30, 0.96);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    z-index: 400;
    padding: 3rem 6rem;
}

.lightbox.is-active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    overflow: hidden;
}

.lightbox-image {
    max-width: 100%;
    max-height: calc(90vh - 5rem);
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
    border-radius: 14px;
    display: block;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.lightbox-image.is-exiting {
    position: absolute;
    top: 0;
    pointer-events: none;
}

.lightbox-caption {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-faint);
    text-align: center;
    max-width: 60ch;
    transition: opacity 0.2s ease;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: var(--red-light);
    border: none;
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s ease;
    font-weight: 700;
}

.lightbox-close:hover {
    background: var(--red-dark);
}

/* Carousel nav arrows */
.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 20, 30, 0.6);
    border: 2px solid rgba(121, 44, 77, 0.4);
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.4rem;
    font-weight: 700;
    width: 3.2rem;
    height: 3.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 0;
    transition: all 0.2s ease;
    z-index: 10;
    backdrop-filter: blur(8px);
    line-height: 1;
}

.lightbox-prev {
    left: -5rem;
}

.lightbox-next {
    right: -5rem;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(121, 44, 77, 0.3);
    border-color: rgba(121, 44, 77, 0.9);
    transform: translateY(-50%) scale(1.08);
}

.lightbox-counter {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-faint);
}

/* ==============================
   RESPONSIVE
============================== */
@media (max-width: 1024px) {
    .gallery-page {
        padding: 0 2rem 4rem;
    }
}

@media (max-width: 768px) {
    .gallery-page {
        padding: 0 1rem 3rem;
    }

    .photo-columns {
        columns: 2;
        column-gap: 0.5rem;
    }

    .photo-item {
        margin-bottom: 0.5rem;
    }

    .lightbox {
        padding: 2rem;
    }

    .lightbox-image {
        max-height: calc(90vh - 3rem);
    }

    .lightbox-close {
        top: 1.5rem;
        right: 1.5rem;
    }
}

@media (max-width: 520px) {
    .photo-columns {
        columns: 2;
        column-gap: 0.4rem;
    }

    .photo-item {
        margin-bottom: 0.4rem;
    }

    .lightbox {
        padding: 1.5rem;
    }

    .lightbox-image {
        max-height: calc(90vh - 2.5rem);
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }
}