.bibtex-modal {
  position: fixed;
  z-index: 1000;
  inset: 0;
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}

.bibtex-modal-content {
  background-color: #fff;
  margin: 10% auto;
  padding: 20px 24px;
  border: 1px solid #888;
  max-width: 700px;
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.bibtex-modal-close {
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  border: 0;
  background: transparent;
}

.bibtex-modal-close:hover { color: #999; }

#bibtex-modal-body {
  white-space: pre;
  font-family: "Courier New", monospace;
  font-size: 0.9rem;
}