/* ============================================================================
 * ec-cmd-palette — Command palette global (Ctrl+K)
 * ----------------------------------------------------------------------------
 * Story 4.9 / EPIC-004
 *
 * Busca rápida e ações instantâneas via teclado, inspirada em Linear/Stripe.
 * Abre via Ctrl+K (Cmd+K no Mac), Esc fecha, setas navegam, Enter executa.
 *
 * Disponível em todas as telas internas (não no portal público).
 *
 * Acessibilidade:
 * - role=combobox no input, role=listbox nos resultados
 * - aria-activedescendant no item selecionado
 * - aria-live=polite anuncia mudanças de resultados
 * - Trap de foco quando aberto
 * ========================================================================= */

.ec-cmd-palette__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 26, 0.30);
  z-index: 9990;
  display: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.ec-cmd-palette__backdrop.is-open {
  display: block;
  opacity: 1;
}

.ec-cmd-palette {
  position: fixed;
  top: 12vh;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: min(640px, calc(100vw - 32px));
  max-height: 70vh;
  background: var(--ec-white);
  border: 0.5px solid var(--ec-gray-100);
  border-radius: var(--ec-radius-md);
  box-shadow: var(--ec-shadow-modal);
  z-index: 9991;
  display: none;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.ec-cmd-palette.is-open {
  display: flex;
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.ec-cmd-palette__input-row {
  display: flex;
  align-items: center;
  gap: var(--ec-space-3);
  padding: var(--ec-space-4) var(--ec-space-4);
  border-bottom: 0.5px solid var(--ec-gray-100);
}

.ec-cmd-palette__input-icon {
  color: var(--ec-gray-400);
  font-size: 18px;
  flex-shrink: 0;
}

.ec-cmd-palette__input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--ec-font-sans);
  font-size: 15px;
  color: var(--ec-black);
}

.ec-cmd-palette__input::placeholder {
  color: var(--ec-gray-400);
}

.ec-cmd-palette__hint {
  font-family: var(--ec-font-sans);
  font-size: 11px;
  font-weight: 600;
  color: var(--ec-gray-600);
  background: var(--ec-gray-50);
  padding: 2px 8px;
  border: 0.5px solid var(--ec-gray-100);
  border-radius: var(--ec-radius-sm);
  flex-shrink: 0;
}

.ec-cmd-palette__results {
  list-style: none;
  margin: 0;
  padding: var(--ec-space-2) 0;
  overflow-y: auto;
  max-height: calc(70vh - 60px);
}

.ec-cmd-palette__category {
  font-family: var(--ec-font-sans);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ec-gray-400);
  padding: var(--ec-space-3) var(--ec-space-4) var(--ec-space-1);
  margin: 0;
}

.ec-cmd-palette__item {
  display: flex;
  align-items: center;
  gap: var(--ec-space-3);
  padding: var(--ec-space-2) var(--ec-space-4);
  cursor: pointer;
  border-left: 2px solid transparent;
  font-family: var(--ec-font-sans);
  font-size: 14px;
  color: var(--ec-black);
  text-decoration: none;
}

.ec-cmd-palette__item:hover,
.ec-cmd-palette__item.is-active {
  background: var(--ec-gray-50);
  border-left-color: var(--ec-yellow);
}

.ec-cmd-palette__item-icon {
  color: var(--ec-gray-600);
  font-size: 16px;
  flex-shrink: 0;
}

.ec-cmd-palette__item-title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ec-cmd-palette__item-meta {
  color: var(--ec-gray-400);
  font-size: 12px;
  flex-shrink: 0;
}

.ec-cmd-palette__empty {
  padding: var(--ec-space-6) var(--ec-space-4);
  text-align: center;
  color: var(--ec-gray-600);
  font-size: 14px;
}

@media (prefers-reduced-motion: reduce) {
  .ec-cmd-palette,
  .ec-cmd-palette__backdrop {
    transition: none;
  }
}