#scrollTopBtn {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  position: fixed;
  bottom: 40px;
  right: 40px;
  font-size: 25px;
  background-color: #156405;
  color: #d32fe2;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
}

#scrollTopBtn:hover {
  background-color: #41a72d;
}

#scrollTopBtn.show {
  opacity: 1;
  visibility: visible;
}

#scrollTopBtn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(-10px);
  animation: bounce 0.3s ease;
}

@keyframes bounce {
  0% {
    transform: translateY(-20px);
  }

  50% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-10px);
  }
}

@media (max-width: 768px) {
  #scrollTopBtn {
    bottom: 10px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 22px;
  }
}