.share-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  background-color: #0d6efd;
  color: white;
  border: none;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.3);
  cursor: pointer;
}