/* css/aai-gallery-style.css */

.page-header {
    padding: 30px 0;
    margin-bottom: 40px;
    text-align: center;
    border-bottom: 1px solid #dee2e6;
}
.page-header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #343a40;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.page-header .page-subtitle {
    font-size: 1.1rem;
    color: #6c757d;
    max-width: 650px;
    margin: 10px auto 0 auto;
}

.gallery-grid {
    display: grid;
    /* Create responsive columns: 1 on mobile, 2 on sm, 3 on md, 4 on lg screens */
    grid-template-columns: repeat(1, 1fr);
    gap: 1.5rem; /* Space between images */
}

@media (min-width: 576px) { /* Small devices (landscape phones) */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 768px) { /* Medium devices (tablets) */
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (min-width: 992px) { /* Large devices (desktops) */
    .gallery-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.gallery-item a {
    display: block;
    overflow: hidden;
    border-radius: 0.375rem; /* Bootstrap's default border-radius */
    box-shadow: 0 0.25rem 0.75rem rgba(0,0,0,0.1);
    position: relative; /* For the overlay */
    background-color: #e9ecef; /* Placeholder color */
}

.gallery-item img {
    width: 100%;
    height: 200px; /* Fixed height for a uniform grid */
    object-fit: cover; /* Cover the area without distortion */
    transition: transform 0.3s ease-in-out, filter 0.3s ease;
}

.gallery-item a:hover img {
    transform: scale(1.05); /* Zoom effect on hover */
    filter: brightness(0.8);
}

/* Optional: Add a search icon overlay on hover */
.gallery-item a::after {
    content: '\F52A'; /* Bootstrap Icon: search */
    font-family: 'bootstrap-icons';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    color: white;
    font-size: 2.5rem;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.gallery-item a:hover::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.no-images-message {
    text-align: center;
    padding: 40px 0;
    font-size: 1.1rem;
    color: #6c757d;
}