.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--color-main);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.scroll-top:hover {
  background: var(--color-main_hover);
  transform: translateY(-3px);
}

.scroll-top.show {
  opacity: 1;
  visibility: visible;
}

/* Анимация появления */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.scroll-top.show {
  animation: fadeIn 0.3s ease;
}