#scrollToTopBtn {
  position: fixed;
  right: 30px;
  bottom: 30px;
  width: 56px;
  height: 56px;
  background: #1B4B59;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  box-shadow: 0 6px 18px rgba(0,0,0,0.18);
}

#scrollToTopBtn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#scrollToTopBtn svg {
  width: 35px;
  height: 35px;
  fill: #AE7E5A;
}

#scrollToTopBtn:hover {
  transform: translateY(-2px);
}

@media (max-width: 640px) {
  #scrollToTopBtn {
    right: 20px;
    bottom: 20px;
    width: 50px;
    height: 50px;
  }

  #scrollToTopBtn svg {
    width: 35px;
    height: 35px;
  }
}