/* Contenedor principal de la Galería (Grid) */
.spg-gallery-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.spg-gallery-item {
    display: block;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05); /* Estética moderna */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    background-color: #f1f1f1;
}

.spg-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
}

.spg-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
    display: block;
    transition: opacity 0.3s ease;
}

.spg-gallery-item:hover img {
    opacity: 0.95;
}

/* Lightbox Modal: Visualizador en Pantalla Completa */
.spg-lightbox-modal {
    display: none;
    position: fixed;
    z-index: 999999;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85); /* Fondo oscuro semitransparente */
    backdrop-filter: blur(8px); /* Efecto cristalino */
    align-items: center;
    justify-content: center;
}

.spg-lightbox-content {
    margin: auto;
    display: block;
    max-width: 90vw;
    max-height: 85vh;
    border-radius: 6px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    animation: spgZoomIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    object-fit: contain;
}

@keyframes spgZoomIn {
    from { transform: scale(0.6); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.spg-lightbox-close {
    position: absolute;
    top: 25px;
    right: 45px;
    color: #ffffff;
    font-size: 50px;
    font-weight: 300;
    cursor: pointer;
    transition: color 0.3s;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    z-index: 100;
}

.spg-lightbox-close:hover,
.spg-lightbox-close:focus {
    color: #cccccc;
    text-decoration: none;
}