.a11y-async-button {
  --a11y-async-button-gap: 0.5rem;
  --a11y-async-button-radius: 0.5rem;
  --a11y-async-button-transition-duration: 160ms;
  --a11y-async-button-padding-x: 1rem;
  --a11y-async-button-padding-y: 0.625rem;
  --a11y-async-button-font-size: 1rem;
  --a11y-async-button-font-weight: 600;
  --a11y-async-button-idle-background: #1d4ed8;
  --a11y-async-button-idle-border: #1e40af;
  --a11y-async-button-idle-color: #ffffff;
  --a11y-async-button-loading-background: #0369a1;
  --a11y-async-button-loading-color: #ffffff;
  --a11y-async-button-success-background: #15803d;
  --a11y-async-button-success-color: #ffffff;
  --a11y-async-button-error-background: #b91c1c;
  --a11y-async-button-error-color: #ffffff;
  --a11y-async-button-disabled-background: #6b7280;
  --a11y-async-button-disabled-color: #ffffff;
  --a11y-async-button-focus-ring: #111827;

  --_gap: var(--a11y-async-button-gap);
  --_radius: var(--a11y-async-button-radius);
  --_transition-duration: var(--a11y-async-button-transition-duration);
  --_padding-x: var(--a11y-async-button-padding-x);
  --_padding-y: var(--a11y-async-button-padding-y);
  --_font-size: var(--a11y-async-button-font-size);
  --_font-weight: var(--a11y-async-button-font-weight);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--_gap);
  min-height: 2.75rem;
  padding: var(--_padding-y) var(--_padding-x);
  border: 2px solid var(--a11y-async-button-idle-border);
  border-radius: var(--_radius);
  background: var(--a11y-async-button-idle-background);
  color: var(--a11y-async-button-idle-color);
  font: inherit;
  font-size: var(--_font-size);
  font-weight: var(--_font-weight);
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition:
    background-color var(--_transition-duration),
    border-color var(--_transition-duration),
    color var(--_transition-duration),
    opacity var(--_transition-duration),
    filter var(--_transition-duration);
}

.a11y-async-button:hover:not([aria-disabled="true"]):not(:disabled) {
  filter: brightness(0.92);
}

.a11y-async-button:focus-visible {
  outline: 3px solid var(--a11y-async-button-focus-ring);
  outline-offset: 3px;
}

.a11y-async-button.is-loading {
  border-color: var(--a11y-async-button-loading-background);
  background: var(--a11y-async-button-loading-background);
  color: var(--a11y-async-button-loading-color);
  cursor: wait;
}

.a11y-async-button.is-success {
  border-color: var(--a11y-async-button-success-background);
  background: var(--a11y-async-button-success-background);
  color: var(--a11y-async-button-success-color);
}

.a11y-async-button.is-error {
  border-color: var(--a11y-async-button-error-background);
  background: var(--a11y-async-button-error-background);
  color: var(--a11y-async-button-error-color);
}

.a11y-async-button.is-disabled,
.a11y-async-button[aria-disabled="true"]:not(.is-loading):not(.is-success):not(.is-error),
.a11y-async-button:disabled:not(.is-loading):not(.is-success):not(.is-error) {
  border-color: var(--a11y-async-button-disabled-background);
  background: var(--a11y-async-button-disabled-background);
  color: var(--a11y-async-button-disabled-color);
  cursor: not-allowed;
  opacity: 0.72;
}

.a11y-async-button--preserve-width {
  text-align: center;
}

.a11y-async-button__icon {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 1em;
  height: 1em;
}

.a11y-async-button.is-loading .a11y-async-button__icon {
  animation: a11y-async-button-spin 0.75s linear infinite;
}

.a11y-async-button__text {
  min-width: 0;
}

.a11y-async-button__status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes a11y-async-button-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .a11y-async-button,
  .a11y-async-button *,
  .a11y-async-button *::before,
  .a11y-async-button *::after {
    animation-duration: 0.001ms;
    animation-iteration-count: 1;
    scroll-behavior: auto;
    transition-duration: 0.001ms;
  }
}