.scrollToTop {
  display: none;
  position: fixed;
  bottom: 100px;
  right: 0;
  background-color: var(--color-03);
  color: var(--color-00);
  width: 50px;
  height: 50px;
  border: solid 1px black;
  border-right: 0;
  border-radius: 50px 0 0 50px;
  text-align: center;
  line-height: 46px;
  font-size: 31px;
  z-index: 99;
  text-decoration: none;
  opacity: 0; /* Initial opacity */
  transition: opacity 0.5s ease; /* Transition effect */
}

.scrollToTop.show {
  opacity: 1; /* Show when scrolled */
}

.scrollToTop:hover {
  background-color: var(--color-02);
}