.pdf-iframe {
  width: 100%;
  height: 650px;
  border: 0;
  background-color: #fff;
  display: block;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.mobile-preview-container img {
  width: 100%;
  height: auto;
  margin-bottom: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border: 1px solid #dee2e6;
}

.action-buttons .btn {
  width: 100%;
}

@media (min-width: 768px) {
  .action-buttons .btn {
    width: auto;
  }
}

@media (max-width: 767.98px) {
  body {
    padding-bottom: 80px;
  }

  .pdf-iframe {
    display: none;
  }
}

@media (max-width: 576px) {
  .preview-wrapper {
    min-height: 420px;
  }
}

#main-content {
  margin-top: 1rem !important;
}