/* Galeria alimentada pela Central de Demandas NEX. Cada bloco representa
   uma sessão/evento do Firestore; as fotos preservam a proporção do upload. */

.gallery-section-heading {
    margin: 0 0 22px;
    color: var(--navy-dark);
    font-family: var(--serif);
    font-size: 1.55rem;
    line-height: 1.2;
}

.page-hero h1 {
    margin: 0;
    color: #fff;
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3vw, 2.35rem);
    line-height: 1.08;
}

.gallery-container {
    display: grid;
    gap: 42px;
}

.gallery-container[aria-busy="true"] {
    min-height: 190px;
}

.gallery-status {
    display: grid;
    justify-items: center;
    align-content: center;
    gap: 10px;
    min-height: 180px;
    padding: 32px 18px;
    color: var(--muted);
    border: 1px solid var(--line);
    background: var(--warm);
    text-align: center;
}

.gallery-status i {
    color: var(--navy);
    font-size: 1.5rem;
}

.gallery-status p,
.gallery-status span {
    margin: 0;
}

.gallery-status p {
    color: var(--navy-dark);
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 700;
}

.gallery-status span {
    max-width: 44ch;
    line-height: 1.55;
}

.gallery-session + .gallery-session {
    padding-top: 38px;
    border-top: 1px solid var(--line);
}

.gallery-session-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 9px 16px;
    margin-bottom: 7px;
}

.gallery-session-header h3 {
    margin: 0;
    color: var(--navy-dark);
    font-family: var(--serif);
    font-size: 1.5rem;
    line-height: 1.25;
}

.gallery-session-date {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: .86rem;
    font-weight: 600;
}

.gallery-section .gallery-session-description {
    margin: 0 0 17px;
    max-width: 78ch;
    color: var(--muted);
    font-size: .96rem;
    line-height: 1.65;
}

/* Masonry via CSS multi-column: funciona com retratos e paisagens sem
   recortar as imagens nem depender de cálculos posteriores em JavaScript. */
.gallery-masonry {
    columns: 4 220px;
    column-gap: 13px;
}

.gallery-photo {
    display: block;
    width: 100%;
    margin: 0 0 13px;
    padding: 0;
    overflow: hidden;
    border: 0;
    background: var(--warm);
    cursor: zoom-in;
    break-inside: avoid;
}

.gallery-photo img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform 220ms ease, filter 220ms ease;
}

.gallery-photo:hover img,
.gallery-photo:focus-visible img {
    filter: brightness(.94);
    transform: scale(1.035);
}

.gallery-photo:focus-visible {
    outline: 3px solid var(--bronze);
    outline-offset: 3px;
}

.gallery-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: rgba(8, 11, 36, .94);
}

.gallery-lightbox.is-open {
    display: grid;
}

body.gallery-lightbox-open {
    overflow: hidden;
}

.gallery-lightbox-figure {
    grid-column: 2;
    display: grid;
    place-items: center;
    margin: 0;
    max-height: calc(100vh - 48px);
}

.gallery-lightbox-image {
    max-width: 100%;
    max-height: calc(100vh - 48px);
    object-fit: contain;
}

.gallery-lightbox-close,
.gallery-lightbox-nav {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    padding: 0;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
    cursor: pointer;
}

.gallery-lightbox-close:hover,
.gallery-lightbox-nav:hover,
.gallery-lightbox-close:focus-visible,
.gallery-lightbox-nav:focus-visible {
    background: rgba(255, 255, 255, .2);
}

.gallery-lightbox-close {
    position: absolute;
    top: 18px;
    right: 18px;
    z-index: 2;
}

.gallery-lightbox-prev {
    grid-column: 1;
}

.gallery-lightbox-next {
    grid-column: 3;
}

.gallery-lightbox-counter {
    position: absolute;
    bottom: 18px;
    left: 50%;
    padding: 5px 10px;
    color: rgba(255, 255, 255, .86);
    background: rgba(8, 11, 36, .6);
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .04em;
    transform: translateX(-50%);
}

@media (max-width: 640px) {
    .page-hero h1 {
        font-size: 1.75rem;
    }

    .gallery-section-heading {
        margin-bottom: 18px;
    }

    .gallery-container {
        gap: 34px;
    }

    .gallery-session + .gallery-session {
        padding-top: 30px;
    }

    .gallery-masonry {
        columns: 2 140px;
        column-gap: 9px;
    }

    .gallery-photo {
        margin-bottom: 9px;
    }

    .gallery-lightbox {
        grid-template-columns: 1fr;
        padding: 14px;
    }

    .gallery-lightbox-figure {
        grid-column: 1;
    }

    .gallery-lightbox-nav {
        position: absolute;
        top: 50%;
        width: 42px;
        height: 42px;
        transform: translateY(-50%);
    }

    .gallery-lightbox-prev {
        left: 7px;
    }

    .gallery-lightbox-next {
        right: 7px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .gallery-photo img {
        transition: none;
    }
}