/* Styles for the thumbnail gallery */
.thumbnail-gallery {
    display: grid; /* Use grid layout for thumbnails */
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); /* Responsive column sizing */
    gap: 10px; /* Spacing between thumbnails */
    padding: 10px; /* Padding around the gallery */
}

.thumbnail-gallery img {
    width: 150px; /* Fixed width for thumbnails */
    height: 150px; /* Fixed height for thumbnails */
    object-fit: cover; /* Cover the area without distorting the image */
    cursor: pointer; /* Pointer cursor for clickable images */
    transition: transform 0.3s ease; /* Smooth zoom effect on hover */
}

.thumbnail-gallery img:hover {
    transform: scale(1.05); /* Slight zoom on hover */
}

/* Modal styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1000; /* Sit on top of other content */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto; /* Enable scrolling if needed */
    background-color: rgba(0, 0, 0, 0.8); /* Semi-transparent black background */
    justify-content: center; /* Center the content horizontally */
    align-items: center; /* Center the content vertically */
}

.modal img {
    width: 80%; /* Fixed width for modal image */
    height: auto; /* Maintain aspect ratio */
    max-width: 800px; /* Maximum width for large screens */
    max-height: 80%; /* Limit height to 80% of the viewport */
    object-fit: contain; /* Ensure image fits within the container */
    margin: auto; /* Center image within modal */
    display: block; /* Ensure image displays as block */
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 40px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer; /* Pointer cursor for clickable close button */
}

.close-btn:hover {
    color: #bbb; /* Lighten color on hover */
}

button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%); /* Vertically center buttons */
    background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent background */
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer; /* Pointer cursor for clickable buttons */
    border-radius: 3px;
}

#prev-btn {
    left: 10px; /* Position previous button on the left */
}

#next-btn {
    right: 10px; /* Position next button on the right */
}

button:hover {
    background-color: rgba(0, 0, 0, 0.7); /* Darken background on hover */
}

/* Media query for mobile devices */
@media (max-width: 768px) {
    .modal img {
        width: 100%; /* Full width on small screens */
        height: auto;
        max-width: none; /* Remove max-width constraint */
        max-height: 90%; /* Limit height to 90% of the viewport */
    }
}