div.scroll-container {
  background-color: #333;
  overflow: auto;
  white-space: nowrap;
  padding: 10px;
  caption-side: bottom;
  font-size: large;
}

div.scroll-container img {
  padding: 10px;
}

/* Responsive PDF list */
ul.pdf-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
  padding: 1rem;
  list-style: none;
  max-width: 900px;
  margin: 0 auto;
}

/* 2 columns on tablets */
@media (min-width: 768px) {
  ul.pdf-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 3 columns on laptop/desktop screens */
@media (min-width: 1024px) {
  ul.pdf-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

ul.pdf-list li {
  margin: 0;
  padding: 0.15rem;
  text-align: left;
}

/* Photo Gallery */
.photo-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.gallery-item {
  cursor: pointer;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.gallery-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.9);
}

.lightbox-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 80%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 1001;
}

.lightbox-close:hover,
.lightbox-close:focus {
  color: #bbb;
}

.lightbox-caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .photo-gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.5rem;
    padding: 0.5rem;
  }
  
  .gallery-item img {
    height: 150px;
  }
}