.file-upload-section {
  background-color: #f9f9f9;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
  margin-top: 230px;
  position: sticky;
  z-index: 9999;
  text-align: center;
}

.drop-zone {
  border: 3px dashed var(--pbmit-global-color);
  border-radius: 10px;
  padding: 40px 20px;
  cursor: pointer;
  position: relative;
}

.preview-container {
  margin-top: 20px;
  text-align: center;
}

.preview-image {
  max-width: 100%;
  max-height: 200px;
  margin-bottom: 10px;
}

.feedback-message {
  margin-top: 15px;
  color: #007bff;
  font-weight: bold;
}

/* Give any .design-card with .selected a 2px primary‐colored border */
.design-card.selected {
  border: 2px solid var(--bs-primary);
  /* Optionally, adjust border radius, shadow, etc. */
  border-radius: 0.5rem;    /* match Bootstrap’s rounded corners */
  box-shadow: 0 0 8px rgba(13, 110, 253, 0.25); /* subtle blue glow */
}

/* If desired, make sure the “unselected” state has no border */
.design-card {
  border: 2px solid rgba(0,0,0,0.1);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}


#browse-button {
  margin-top: 10px;
}

/* Adjust margin-top for mobile devices */
@media (max-width: 768px) {
  .file-upload-section {
    margin-top: 0px;
  }
}