.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--border-1);
  border-radius: var(--radius-sm);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    opacity var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.is-theme-switching .button,
.is-theme-switching .icon-button {
  transition: none;
}

.button--compact,
.button--small {
  min-height: 34px;
  padding: 0 12px;
  font-size: 0.86rem;
}

.button--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-contrast);
}

.button--primary:hover:not(:disabled),
.button--primary:focus-visible:not(:disabled) {
  border-color: var(--accent-hover);
  background: var(--accent-hover);
}

.button:not(.button--ghost):hover:not(:disabled),
.button:not(.button--ghost):focus-visible:not(:disabled) {
  transform: translateY(-1px);
}

.button--secondary {
  background: var(--surface-1);
  color: var(--text-1);
}

.button--secondary:hover:not(:disabled),
.button--secondary:focus-visible:not(:disabled) {
  border-color: var(--border-2);
  background: var(--interactive-wash);
  color: var(--text-1);
}

.button--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--text-2);
}

.button--ghost::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 7px;
  left: 12px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms ease;
}

.button--ghost.button--compact::after,
.button--ghost.button--small::after {
  bottom: 5px;
}

.button--ghost:hover:not(:disabled),
.button--ghost:focus-visible:not(:disabled) {
  border-color: transparent;
  background: transparent;
  color: var(--text-1);
}

.button--ghost:hover:not(:disabled)::after,
.button--ghost:focus-visible:not(:disabled)::after {
  transform: scaleX(1);
}

.button--danger {
  border-color: var(--color-error);
  background: var(--surface-1);
  color: var(--color-error);
}

.button--danger:hover:not(:disabled),
.button--danger:focus-visible:not(:disabled) {
  border-color: var(--color-error);
  background: var(--status-error-soft);
  color: var(--color-error);
}

.button--danger.button--wait-sweep {
  --button-wait-active-color: var(--color-error);
  --button-wait-muted-color: color-mix(in srgb, var(--color-error) 42%, var(--surface-1));
}

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

.button:disabled {
  opacity: 0.42;
  filter: none;
  cursor: not-allowed;
}

.button--wait-sweep:disabled {
  opacity: 1;
}

.button--wait-sweep.is-waiting {
  overflow: hidden;
  border-color: var(--button-wait-muted-color);
  color: var(--button-wait-muted-color);
}

.button--wait-sweep.is-waiting::before,
.button--wait-sweep.is-waiting::after {
  position: absolute;
  pointer-events: none;
  animation: button-wait-sweep var(--button-wait-duration, 5s) linear forwards;
}

.button--wait-sweep.is-waiting::before {
  content: "";
  inset: -1px;
  border: 1px solid var(--button-wait-active-color);
  border-radius: inherit;
}

.button--wait-sweep.is-waiting::after {
  content: attr(data-button-wait-label);
  inset: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--button-wait-active-color);
}

@keyframes button-wait-sweep {
  from {
    clip-path: inset(0 100% 0 0);
  }

  to {
    clip-path: inset(0);
  }
}

.button[aria-busy="true"],
.button--loading {
  gap: var(--space-2);
  pointer-events: none;
}

.button[aria-busy="true"]:disabled,
.button--loading:disabled {
  opacity: 1;
}

.button[aria-busy="true"]::before,
.button--loading::before {
  content: "";
  width: 13px;
  height: 13px;
  flex: 0 0 13px;
  border: 2px solid color-mix(in srgb, currentColor 34%, transparent);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: button-spin 700ms linear infinite;
}

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

.quiet-action,
.auth-text-button,
.login-link-button,
.contribute-optional-button {
  position: relative;
  width: max-content;
  padding: 2px 0;
  border: 0;
  background: transparent;
  color: var(--text-2);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
}

.text-underline-action {
  position: relative;
}

.quiet-action::after,
.auth-text-button::after,
.login-link-button::after,
.contribute-optional-button::after,
.text-underline-action::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  left: 0;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms ease;
}

.quiet-action:hover,
.quiet-action:focus-visible,
.auth-text-button:hover:not(:disabled),
.auth-text-button:focus-visible:not(:disabled),
.login-link-button:hover:not(:disabled),
.login-link-button:focus-visible:not(:disabled),
.contribute-optional-button:hover,
.contribute-optional-button:focus-visible {
  color: var(--text-1);
  outline: none;
}

.quiet-action:hover::after,
.quiet-action:focus-visible::after,
.auth-text-button:hover:not(:disabled)::after,
.auth-text-button:focus-visible:not(:disabled)::after,
.login-link-button:hover:not(:disabled)::after,
.login-link-button:focus-visible:not(:disabled)::after,
.contribute-optional-button:hover::after,
.contribute-optional-button:focus-visible::after,
.text-underline-action:hover::after,
.text-underline-action:focus-visible::after {
  transform: scaleX(1);
}

.quiet-action--accent,
.quiet-action--accent:hover,
.quiet-action--accent:focus-visible {
  color: var(--accent);
}

.auth-text-button:disabled,
.login-link-button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.icon-action,
.profile-settings-trigger.icon-action,
.topbar-actions .profile-menu__trigger,
.admin-action-link,
.admin-export-download-button {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  min-width: 34px;
  min-height: 34px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-1);
  cursor: pointer;
  transition:
    box-shadow var(--transition-fast),
    color var(--transition-fast),
    filter var(--transition-fast),
    transform var(--transition-fast);
}

.icon-action:hover,
.icon-action:focus-visible,
.profile-settings-trigger.icon-action:hover,
.profile-settings-trigger.icon-action:focus-visible,
.topbar-actions .profile-menu__trigger:hover,
.topbar-actions .profile-menu__trigger:focus-visible,
.admin-action-link:hover,
.admin-action-link:focus-visible,
.admin-export-download-button:hover,
.admin-export-download-button:focus-visible {
  border: 0;
  background: transparent;
  color: var(--text-1);
  box-shadow: none;
  outline: none;
}

.icon-action:hover,
.profile-settings-trigger.icon-action:hover,
.topbar-actions .profile-menu__trigger:hover,
.admin-action-link:hover,
.admin-export-download-button:hover,
.modal__close:hover {
  filter:
    drop-shadow(0 1px 1px color-mix(in srgb, var(--accent) 30%, transparent))
    drop-shadow(0 3px 4px color-mix(in srgb, var(--accent) 30%, transparent));
}

.topbar-actions .profile-menu__trigger:hover {
  filter: none;
  box-shadow: 0 12px 24px rgba(15, 18, 24, 0.24);
}

.profile-settings-trigger.icon-action:hover {
  filter: none;
}

.icon-action:hover :is(svg, img),
.topbar-actions .profile-menu__trigger:hover :is(svg, img),
.admin-action-link:not(.admin-reference-toggle):hover :is(svg, img, .admin-action-link__icon),
.admin-export-download-button:hover > span,
.modal__close:hover::before {
  transform-origin: center;
  animation: action-icon-jiggle 350ms ease-in-out;
}

.profile-settings-trigger.icon-action:hover :is(svg, img),
.topbar-actions .profile-menu__trigger:hover :is(svg, img) {
  animation: none;
}

@keyframes action-icon-jiggle {
  0%,
  100% {
    transform: rotate(0deg);
  }

  20% {
    transform: rotate(22deg);
  }

  40% {
    transform: rotate(-18deg);
  }

  60% {
    transform: rotate(7deg);
  }

  80% {
    transform: rotate(-3deg);
  }
}

.icon-action:focus-visible,
.profile-settings-trigger.icon-action:focus-visible,
.topbar-actions .profile-menu__trigger:focus-visible,
.admin-action-link:focus-visible,
.admin-export-download-button:focus-visible {
  box-shadow:
    0 0 0 3px var(--focus-ring),
    0 12px 24px rgba(15, 18, 24, 0.24);
}

@media (prefers-reduced-motion: reduce) {
  .icon-action:hover :is(svg, img),
  .topbar-actions .profile-menu__trigger:hover :is(svg, img),
  .admin-action-link:not(.admin-reference-toggle):hover :is(svg, img, .admin-action-link__icon),
  .admin-export-download-button:hover > span,
  .modal__close:hover::before {
    animation: none;
  }
}

.icon-action--danger,
.admin-action-link--danger {
  color: var(--color-error);
}

.icon-action--danger:hover,
.icon-action--danger:focus-visible,
.admin-action-link--danger:hover,
.admin-action-link--danger:focus-visible {
  color: var(--color-error);
}

.admin-action-link--muted {
  color: var(--text-3);
}

.admin-action-link svg,
.admin-action-link img,
.admin-action-link__icon {
  width: 16px;
  height: 16px;
}

.admin-action-link {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1;
  appearance: none;
  -webkit-appearance: none;
}

.admin-table__actions--archive {
  grid-template-columns: repeat(2, 34px);
}

.admin-table__actions-slot {
  width: 34px;
  height: 34px;
}

/* Three icon actions plus the Reference table's existing gaps and cell padding. */
.admin-reference-table {
  --reference-col-actions: 10rem;
}

.admin-export-download-button {
  color: var(--accent);
}

.admin-export-download-button:hover,
.admin-export-download-button:focus-visible {
  color: var(--accent-hover);
}