.gallery-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  padding: 5px;
  margin-bottom: 10px;
}

.gallery {
  width: 260px;
  border: 1px solid #ccc;
  box-sizing: border-box;
  text-align: center;
  background-color: #747d8c;
  border-radius: 5px;
}

.gallery img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 5px;
}

.desc {
  padding: 5px;
  font-size: 16px;
}
.download-btn {
  display: inline-block;
  margin: 0px 0 3px;
  padding: 2px 6px;
  font-size: 14px;
  color: white;
  background-color: #007bff;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color 0.3s;
}

.download-btn:hover {
  background-color: #0056b3;
}

.video-preview,
.pdf-preview {
  width: 250px;
  height: 130px;
  padding: 3px;
  object-fit: cover; /* optional: crop video nicely */
  border: 1px solid #ccc; /* optional: border for style */
  border-radius: 8px; /* optional: rounded corners */
}

.iframe-wrapper {
  position: relative;
  width: 250px;
  height: 130px;
}

.iframe-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  cursor: pointer;
}

@media screen and (max-width: 768px) {
  #title_menu,
  #title_menu li,
  #title_menu ul li a {
    display: none;
  }

  .gallery {
    width: 160px;
    border: 1px solid #ccc;
    box-sizing: border-box;
    text-align: center;
  }

  .video-preview,
  .pdf-preview {
    width: 155px;
    height: 80px;
    padding: 2px;
    object-fit: cover; /* optional: crop video nicely */
    border: 1px solid #ccc; /* optional: border for style */
    border-radius: 8px; /* optional: rounded corners */
  }

  .iframe-wrapper {
    position: relative;
    width: 155px;
    height: 80px;
  }
}