/* Event gallery overlay (full-screen) */
.event-gallery-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.98);
    color: #222;
    z-index: 9999;
    display: none;
    align-items: stretch;
    justify-content: center;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    opacity: 0;
    transition: opacity .28s ease;
}

.event-gallery-overlay.visible {
    display: flex;
    opacity: 1;
}

.event-gallery-inner {
    width: 100%;
    max-width: 1400px;
    margin: 30px;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 24px;
    color: inherit;
    transform: translateY(8px);
    opacity: 0;
    transition: transform .28s ease, opacity .28s ease;
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.event-gallery-overlay.visible .event-gallery-inner {
    transform: translateY(0);
    opacity: 1;
}

.event-gallery-main {
    min-width: 0;
}

.event-gallery-left {
    flex: 1 1 65%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    min-width: 0;
}

.event-gallery-right {
    flex: 0 0 380px;
    background: rgba(247, 247, 250, 1);
    border-radius: 8px;
    padding: 28px 20px 20px 20px;
    overflow: auto;
    position: relative;
}

.event-gallery-close {
    position: absolute;
    right: 12px;
    top: 12px;
    background: #e9eaf0;
    color: #111;
    border: none;
    font-size: 18px;
    line-height: 1;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
}

.event-gallery-main {
    flex: 1 1 auto;
    display: block;
    /* grid/masonry inside */
    align-items: stretch;
    position: relative;
    min-height: 60vh;
    max-height: calc(100vh - 160px);
    overflow: visible !important;
    /* allow tiles to be visible on hover */
    padding-right: 8px;
    /* room for scrollbar if needed */
}

.event-gallery-main img {
    max-width: 100%;
    max-height: calc(100vh - 240px);
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.06);
}

.event-gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.06);
    color: #111;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.event-gallery-prev {
    left: 8px;
}

.event-gallery-next {
    right: 8px;
}

.event-gallery-thumbs {
    display: none !important;
}

/* thumbnails removed - tiles-only design */

.event-gallery-thumbs img {
    width: 92px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.85;
    border: 2px solid transparent;
}

.event-gallery-thumbs img.active {
    opacity: 1;
    border-color: #111;
}

.event-gallery-right h2 {
    margin: 0 0 8px 0;
}

.event-gallery-meta p {
    margin: 6px 0;
    color: #6b6b6b;
}

/* grid (initial mode) - masonry / Pinterest style using CSS columns */
.event-gallery-grid {
    column-count: 4;
    column-gap: 18px;
    width: 100%;
    column-fill: balance;
    padding-bottom: 12px;
    max-height: calc(100vh - 180px);
    /* use available left-column space */
    overflow: auto;
}

/* responsive column counts */
@media (max-width: 1400px) {
    .event-gallery-grid {
        column-count: 3;
    }
}

@media (max-width: 1000px) {
    .event-gallery-grid {
        column-count: 2;
    }
}

@media (max-width: 600px) {
    .event-gallery-grid {
        column-count: 1;
    }
}

/* Explicit small-count layout: when there are 1-4 images, use CSS grid for predictable sizing */
.event-gallery-overlay.count-1 .event-gallery-grid,
.event-gallery-overlay.count-2 .event-gallery-grid,
.event-gallery-overlay.count-3 .event-gallery-grid,
.event-gallery-overlay.count-4 .event-gallery-grid {
    /* switch from column layout to grid layout */
    column-count: unset;
    column-gap: 0;
    display: grid;
    gap: 12px;
    max-height: none;
    overflow: visible;
}

.event-gallery-overlay.count-1 .event-gallery-grid {
    grid-template-columns: 1fr;
}

.event-gallery-overlay.count-2 .event-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
}

.event-gallery-overlay.count-3 .event-gallery-grid {
    grid-template-columns: repeat(3, 1fr);
}

.event-gallery-overlay.count-4 .event-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
}

/* in grid mode, ensure tiles don't try to avoid column breaks */
.event-gallery-overlay.count-1 .event-gallery-tile,
.event-gallery-overlay.count-2 .event-gallery-tile,
.event-gallery-overlay.count-3 .event-gallery-tile,
.event-gallery-overlay.count-4 .event-gallery-tile {
    display: block;
    break-inside: auto;
}

/* treat a single image as full-bleed but keep its aspect ratio */
.event-gallery-overlay.count-1 .event-gallery-tile img {
    object-fit: contain;
    max-height: calc(100vh - 240px);
}

/* defensive overrides to prevent tiles being hidden by other scripts */
.event-gallery-overlay .event-gallery-left img {
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
    backface-visibility: hidden;
}

.event-gallery-tile {
    display: inline-block;
    width: 100%;
    margin: 0 0 18px;
    break-inside: avoid-column;
    -webkit-column-break-inside: avoid;
    position: relative;
    /* allow z-index children */
}

.event-gallery-tile img {
    width: 100%;
    height: auto;
    /* preserve original aspect ratio */
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: box-shadow .16s cubic-bezier(.2, .9, .3, 1), filter .16s cubic-bezier(.2, .9, .3, 1);
    display: block;
    position: relative;
    z-index: 1;
}

.event-gallery-tile img:hover {
    /* avoid transform-based hover to prevent layout/stacking issues */
    filter: brightness(1.03) saturate(1.02);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.14);
    z-index: 30;
    /* keep hover visible above neighbors */
}

@media (max-width:900px) {
    .event-gallery-inner {
        flex-direction: column;
    }

    .event-gallery-right {
        width: 100%;
        max-height: 40vh;
    }
}