/* --- Container Variables --- */
.pg-gallery {
    width: 100%;
    margin-bottom: 20px;
    /* Defaults if variables are missing */
    --pg-gap: 15px; 
    --pg-cap-color: #ffffff;
    --pg-cap-align: center;
    --pg-title-size: 18px;
    --pg-title-weight: 700;
    --pg-cap-size: 14px;
    --pg-cap-weight: 400;
}

.pg-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.pg-item:hover .pg-thumb {
    transform: scale(1.05);
}

.pg-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

/* --- Layouts --- */

/* 1. Tiles (Grid) */
.pg-layout-tiles {
    display: grid;
    grid-gap: var(--pg-gap);
}
.pg-layout-tiles.pg-cols-1 { grid-template-columns: 1fr; }
.pg-layout-tiles.pg-cols-2 { grid-template-columns: repeat(2, 1fr); }
.pg-layout-tiles.pg-cols-3 { grid-template-columns: repeat(3, 1fr); }
.pg-layout-tiles.pg-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* 2. Masonry (CSS Columns) */
.pg-layout-masonry {
    column-gap: var(--pg-gap);
}
.pg-layout-masonry.pg-cols-2 { column-count: 2; }
.pg-layout-masonry.pg-cols-3 { column-count: 3; }
.pg-layout-masonry.pg-cols-4 { column-count: 4; }

.pg-layout-masonry .pg-item {
    break-inside: avoid;
    margin-bottom: var(--pg-gap);
}

/* 3. Square (Aspect Ratio) */
.pg-layout-square {
    display: grid;
    grid-gap: var(--pg-gap);
}
.pg-layout-square.pg-cols-2 { grid-template-columns: repeat(2, 1fr); }
.pg-layout-square.pg-cols-3 { grid-template-columns: repeat(3, 1fr); }
.pg-layout-square.pg-cols-4 { grid-template-columns: repeat(4, 1fr); }

.pg-layout-square .pg-item {
    aspect-ratio: 1 / 1;
}

/* 4. Mosaic (Complex Grid) */
.pg-layout-mosaic {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 200px;
    grid-gap: var(--pg-gap);
}
.pg-layout-mosaic .pg-item:nth-child(1) { grid-column: span 2; grid-row: span 2; }
.pg-layout-mosaic .pg-item:nth-child(2) { grid-column: span 1; grid-row: span 1; }
.pg-layout-mosaic .pg-item:nth-child(3) { grid-column: span 1; grid-row: span 1; }
.pg-layout-mosaic .pg-item:nth-child(4) { grid-column: span 2; grid-row: span 1; }

/* Caption Overlay (Thumbnail) - UPDATED FOR FULL COVER */
.pg-overlay-caption {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    
    background: rgba(0,0,0,0.7); /* Slightly darker for better readability */
    color: var(--pg-cap-color);
    text-align: center;
    
    /* Flex alignment for absolute vertical/horizontal centering */
    display: flex;
    flex-direction: column;
    justify-content: center; /* Vertical Center */
    align-items: center;     /* Horizontal Center */
    
    padding: 20px;
    opacity: 0; /* Hidden by default */
    transition: opacity 0.3s ease; /* Fade effect */
}

/* Override block setting if needed, but flex centering above is prioritized for this specific style */
.pg-gallery[style*="left"] .pg-overlay-caption { align-items: flex-start; text-align: left; }
.pg-gallery[style*="right"] .pg-overlay-caption { align-items: flex-end; text-align: right; }

.pg-item:hover .pg-overlay-caption {
    opacity: 1;
}

.pg-ol-title {
    font-size: var(--pg-title-size);
    font-weight: var(--pg-title-weight);
    margin-bottom: 8px; /* Gap between title and caption */
    display: block;
    line-height: 1.2;
}

.pg-ol-desc {
    display: block;
    font-size: var(--pg-cap-size);
    font-weight: var(--pg-cap-weight);
    line-height: 1.4;
}

/* --- Lightbox --- */
.pg-lightbox {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(10, 10, 10, 0.95);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

.pg-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.pg-lb-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pg-lb-img {
    max-width: 100%;
    max-height: 80vh; 
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    border-radius: 4px;
}

.pg-lb-title {
    color: white;
    text-align: center;
    margin-top: 15px;
    font-size: 18px;
    font-weight: bold;
    font-family: sans-serif;
}

.pg-lb-caption {
    color: #ccc;
    text-align: center;
    margin-top: 5px;
    font-family: sans-serif;
    font-size: 14px;
}

.pg-lb-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    font-size: 40px;
    cursor: pointer;
    line-height: 1;
}

.pg-lb-prev, .pg-lb-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    font-size: 40px;
    cursor: pointer;
    background: rgba(0,0,0,0.3);
    padding: 10px;
    border-radius: 4px;
    user-select: none;
}
.pg-lb-prev:hover, .pg-lb-next:hover { background: rgba(255,255,255,0.2); }
.pg-lb-prev { left: 20px; }
.pg-lb-next { right: 20px; }

/* Responsive */
@media (max-width: 768px) {
    .pg-layout-tiles, .pg-layout-square { grid-template-columns: repeat(2, 1fr) !important; }
    .pg-layout-masonry { column-count: 2 !important; }
    .pg-layout-mosaic { grid-template-columns: 1fr; grid-auto-rows: auto; }
    .pg-layout-mosaic .pg-item { grid-column: auto !important; grid-row: auto !important; }
}