#toTop {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 56px;
  height: 56px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: var(--floating-bg);
  color: var(--text-color);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--button-shadow);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

#toTop.show {
  opacity: 1;
  pointer-events: auto;
}

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

#toTop:active {
  transform: translateY(1px);
}