.loading-btn {
  position: relative;
  overflow: hidden;
}

.loading-btn__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: inherit;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.loading-btn__indicator {
  position: absolute;
  inset: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}

.loading-btn__indicator-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.34;
  animation: loadingButtonDot 0.9s infinite ease-in-out;
}

.loading-btn__indicator-dot:nth-child(2) {
  animation-delay: 0.12s;
}

.loading-btn__indicator-dot:nth-child(3) {
  animation-delay: 0.24s;
}

.loading-btn.is-loading {
  min-inline-size: var(--loading-btn-width, auto);
  min-block-size: var(--loading-btn-height, auto);
  cursor: progress;
}

.loading-btn.is-loading .loading-btn__label {
  opacity: 0;
  transform: translateY(1px);
}

.loading-btn.is-loading .loading-btn__indicator {
  opacity: 1;
  visibility: visible;
}

.loading-btn.is-loading:disabled {
  opacity: 0.96;
}

@keyframes loadingButtonDot {
  0%,
  80%,
  100% {
    transform: translateY(0) scale(0.8);
    opacity: 0.28;
  }

  40% {
    transform: translateY(-3px) scale(1);
    opacity: 1;
  }
}