.mri-back-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 9999px;
  border: 1px solid rgba(45, 212, 232, 0.16);
  background: rgba(12, 21, 38, 0.9);
  color: #94a3b8;
  font: 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s;
}

.mri-back-link:hover {
  color: #2dd4e8;
  border-color: #2dd4e8;
}