.pubmed-star-citations { margin-bottom: 20px; font-family: Arial, sans-serif; }
.pubmed-star-citation {
  margin-bottom: 15px;
  padding: 12px;
  border-left: 4px solid #007bff;
  background-color: #f8f9fa;
  line-height: 1.4;
}
.pubmed-star-loadmore {
  display: block;
  margin: 20px auto;
  padding: 10px 20px;
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}
.pubmed-star-loadmore:hover { background-color: #0056b3; }
.pubmed-star-loadmore:disabled { background-color: #cccccc; cursor: not-allowed; }
.pubmed-star-citation a { color: #0066cc; text-decoration: none; }
.pubmed-star-citation a:hover { text-decoration: underline; }
.pubmed-star-error { padding: 10px; background: #fff3cd; border-left: 4px solid #ffc107; margin: 10px 0; }