.scroll-top-btn {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 9000;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1rem;
  border: 1px solid rgba(139, 104, 20, 0.55);
  border-radius: 999px;
  background: rgba(12, 12, 10, 0.92);
  color: #f5f0e6;
  font-family: "Barlow", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

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

.scroll-top-btn:hover {
  background: #8b6814;
  color: #0c0c0a;
  border-color: #8b6814;
}

.scroll-top-btn svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

@media (max-width: 560px) {
  .scroll-top-btn {
    right: 0.85rem;
    bottom: 0.85rem;
    padding: 0.55rem 0.85rem;
    font-size: 0.82rem;
  }
}