.back-to-top {
  position: fixed;
  inset-inline-end: 40px;
  inset-block-end: 228px;
  z-index: 30;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: rgb(var(--color-text));
  background-color: rgb(var(--color-background) / 0.86);
  border: 1px solid rgb(var(--color-text) / 0.12);
  border-radius: 50%;
  box-shadow: 0 8px 24px rgb(var(--color-shadow) / 0.16);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: 0.25s ease;
  transition-property: opacity, visibility, transform, background-color, border-color, box-shadow;
  backdrop-filter: blur(6px);
}

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

.back-to-top svg {
  width: 56px;
  height: 56px;
  pointer-events: none;
}

@media (pointer: fine) {
  .back-to-top:hover {
    background-color: rgb(var(--color-background));
    border-color: rgb(var(--color-text) / 0.24);
    box-shadow: 0 10px 28px rgb(var(--color-shadow) / 0.2);
  }
}

@media (max-width: 767px) {
  .back-to-top {
    inset-inline-end: 16px;
    inset-block-end: 100px;
    width: 48px;
    height: 48px;
  }

  .back-to-top svg {
    width: 48px;
    height: 48px;
  }
}