.iceq-back-to-top {
  --iceq-backtotop-bg: var(--btn-primary-bg, var(--template-link-color, var(--cassiopeia-color-primary, #1769aa)));
  --iceq-backtotop-color: var(--btn-primary-color, var(--body-bg, #fff));
  --iceq-backtotop-border: var(--btn-primary-border-color, var(--iceq-backtotop-bg));
  --iceq-backtotop-hover-bg: var(--btn-primary-hover-bg, color-mix(in srgb, var(--iceq-backtotop-bg) 82%, #000));
  --iceq-backtotop-hover-color: var(--btn-primary-hover-color, var(--iceq-backtotop-color));
  --iceq-backtotop-hover-border: var(--btn-primary-hover-border-color, var(--iceq-backtotop-hover-bg));
  position: fixed;
  z-index: 1040;
  right: clamp(14px, 2vw, 28px);
  bottom: clamp(14px, 2vw, 28px);
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--iceq-backtotop-border);
  border-radius: 50%;
  color: var(--iceq-backtotop-color);
  background-color: var(--iceq-backtotop-bg);
  box-shadow: var(--cassiopeia-box-shadow, 0 7px 22px rgb(15 23 42 / 20%));
  font: 700 1.35rem/1 sans-serif;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity .2s ease, transform .2s ease, color .2s ease, background-color .2s ease, border-color .2s ease;
}

.iceq-back-to-top--left {
  right: auto;
  left: clamp(14px, 2vw, 28px);
}

.iceq-back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.iceq-back-to-top:hover {
  border-color: var(--iceq-backtotop-hover-border);
  color: var(--iceq-backtotop-hover-color);
  background-color: var(--iceq-backtotop-hover-bg);
}

.iceq-back-to-top:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--iceq-backtotop-bg) 38%, transparent);
  outline-offset: 3px;
}

@media (max-width: 600px) {
  .iceq-back-to-top {
    width: 44px;
    height: 44px;
    bottom: 14px;
  }
}

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