.scroll-top {
  position: fixed;
  right: clamp(1.5rem, 2vw, 2.4rem);
  bottom: clamp(1.5rem, 2vw, 2.4rem);
  z-index: 980;
  width: 3.35rem;
  height: 3.35rem;
  border: 1px solid rgba(110, 36, 51, 0.2);
  border-radius: 999px;
  background: rgba(245, 240, 232, 0.82);
  color: var(--accent, #6e2433);
  box-shadow: 0 20px 50px rgba(58, 42, 32, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(16px) scale(0.94);
  transition:
    opacity 0.35s var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1)),
    transform 0.35s var(--ease-out-expo, cubic-bezier(0.16, 1, 0.3, 1)),
    visibility 0.35s;
}

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

.scroll-top.is-visible:hover {
  transform: translateY(-3px) scale(1.02);
  border-color: rgba(110, 36, 51, 0.3);
  box-shadow: 0 24px 54px rgba(58, 42, 32, 0.18);
}

.scroll-top:focus-visible {
  outline: 2px solid rgba(110, 36, 51, 0.38);
  outline-offset: 4px;
}

.scroll-top svg {
  width: 1.2rem;
  height: 1.2rem;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 1024px) {
  .scroll-top {
    display: none;
  }
}

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