.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 45px;
  height: 45px;
  border: none;
  border-radius: 50%;
  background-color: #030140;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: none; /* hidden by default */
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 999;
}

.back-to-top.show {
  display: flex;
  opacity: 1;
  transform: scale(0.8);
}

.back-to-top:hover {
	border: 1px solid black;
	 transform: scale(1);
  background-color: #0301409f;
}