.scroll-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 80;
  width: 50px;
  height: 50px;
  padding: 0;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--wine);
  color: #fff;
  font: 25px/1 Manrope, sans-serif;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .2s, visibility .2s, transform .2s, background .2s;
  box-shadow: 0 8px 24px rgba(45, 10, 18, .2);
}

.scroll-top:hover,
.scroll-top:focus-visible {
  background: var(--darkwine);
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 520px) {
  .scroll-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
    font-size: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-top {
    transition: none;
  }
}