/* Echo UI: buttons and action groups. */
.ui-button {
  width: auto;
  min-height: var(--ui-control-height);
  padding: 9px var(--ui-action-padding-inline);
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ui-space-2);
  border: 1px solid var(--ui-color-border-strong);
  border-radius: var(--ui-radius-control);
  background: var(--ui-color-surface-raised);
  color: var(--ui-color-text);
  font-family: var(--ui-font-heading);
  font-size: var(--ui-font-size-button);
  font-weight: var(--ui-font-weight-semibold);
  letter-spacing: normal;
  line-height: var(--ui-line-height-tight);
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--ui-shadow-control);
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, box-shadow .16s ease;
}

.ui-button:hover {
  border-color: rgba(var(--ui-primary-rgb), .52);
  background: rgba(var(--ui-primary-rgb), .10);
  color: var(--ui-color-primary);
  box-shadow: var(--ui-shadow-raised);
}

.ui-button:active,
.ui-button.is-active {
  border-color: rgba(var(--ui-primary-rgb), .6);
  background: rgba(var(--ui-primary-rgb), .16);
  color: var(--ui-color-primary);
  box-shadow: var(--ui-shadow-control);
  box-shadow: var(--ui-shadow-inset);
}

.ui-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(var(--ui-primary-rgb), .18);
}

.ui-button:disabled,
.ui-button[aria-disabled="true"] { opacity: .55; cursor: not-allowed; pointer-events: none; }
.ui-button--primary { border-color: var(--ui-button-bg); background: var(--ui-button-bg); color: var(--ui-button-text); box-shadow: var(--ui-shadow-primary); }
[data-theme="dark"] .ui-button--primary { border-color: var(--ui-button-bg); background: var(--ui-button-bg); color: var(--ui-button-text); }
.ui-button--primary:hover { border-color: var(--ui-button-bg-hover); background: var(--ui-button-bg-hover); color: var(--ui-button-text); }
.ui-button--primary:active,
.ui-button--primary.is-active { border-color: var(--ui-button-bg-active); background: var(--ui-button-bg-active); color: var(--ui-button-text); }
.ui-button--secondary { background: var(--ui-color-surface-raised); color: var(--ui-color-text); }
.ui-button--ghost { background: transparent; box-shadow: none; }
.ui-button--danger { border-color: rgba(185, 28, 28, .45); color: var(--ui-color-danger); background: rgba(185, 28, 28, .08); }
.ui-button--danger:hover { border-color: rgba(185, 28, 28, .65); color: var(--ui-color-danger); background: rgba(185, 28, 28, .14); }
.ui-button--danger-solid { border-color: var(--ui-color-danger); background: var(--ui-color-danger); color: var(--ui-color-primary-text); box-shadow: 0 3px 9px rgba(185, 28, 28, .24); }
.ui-button--danger-solid:hover { border-color: #991b1b; background: #991b1b; color: var(--ui-color-primary-text); }
.ui-button--compact { min-height: var(--ui-control-height-compact); padding: 6px var(--ui-action-padding-inline-compact); font-size: var(--ui-font-size-button); }
.ui-button--inline { width: auto; }
.ui-button--block { width: 100%; align-self: stretch; }
.ui-button--icon { width: var(--ui-control-height); min-width: var(--ui-control-height); padding: 0; }
.ui-button__icon { width: 1em; height: 1em; flex: 0 0 auto; fill: currentColor; }
.ui-button__label { min-width: 0; }
.ui-button--loading,
.ui-button[aria-busy="true"] { cursor: progress; pointer-events: none; }
.ui-button--loading::before,
.ui-button[aria-busy="true"]::before { content: ""; width: 1em; height: 1em; flex: 0 0 auto; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: ui-button-spin .7s linear infinite; }
.ui-action-group { display: flex; align-items: center; gap: var(--ui-action-group-gap); flex-wrap: wrap; }
.ui-action-group--end { justify-content: flex-end; }
.ui-action-group--gap-sm { gap: var(--ui-space-2); }
.ui-action-group--gap-md { gap: var(--ui-space-3); }
.ui-page-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--ui-action-group-gap); flex-wrap: wrap; }
.ui-action-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--ui-space-4); flex-wrap: wrap; }
.ui-row-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--ui-space-2); white-space: nowrap; }
.ui-action-menu { position: relative; display: inline-flex; }
.ui-action-menu__panel { position: absolute; z-index: 45; inset: calc(100% + var(--ui-space-2)) 0 auto auto; min-width: 190px; padding: var(--ui-space-2); border: 1px solid var(--ui-color-border-strong); border-radius: var(--ui-radius-control); background: var(--ui-color-surface-raised); box-shadow: var(--ui-shadow-overlay); }
.ui-action-menu__panel[hidden] { display: none; }
.ui-action-menu__panel .ui-button { width: 100%; justify-content: flex-start; box-shadow: none; }

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

@media (max-width: 700px) {
  .ui-page-actions { width: 100%; justify-content: flex-start; }
  .ui-page-actions > :only-child { flex: 1 1 auto; }
  .ui-row-actions { flex-wrap: wrap; white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  .ui-button,
  .ui-button:hover,
  .ui-button:active { animation: none; }
  .ui-button--loading::before,
  .ui-button[aria-busy="true"]::before { animation: none; }
}