/**
 * checkout.css — Estilos de la Pantalla de Finalización de Compra (Pilar 3)
 * Tokens Oficiales: OLED Dark Mode + Cobalt Tech Blue (<200 líneas)
 */
.checkout-page {
  padding: calc(var(--pcweb-header-height) + 2rem) 0 4rem;
  min-height: 100vh;
  background: var(--pcweb-color-bg-base);
}

.checkout-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 992px) {
  .checkout-grid { grid-template-columns: 1fr 420px; align-items: stretch; }
}

.checkout-card {
  background: var(--pcweb-color-bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--pcweb-radius-card);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--pcweb-shadow-card);
}

.checkout-step__header {
  display: flex; align-items: center; gap: 0.75rem;
  margin-bottom: 1.25rem; padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.checkout-step__badge {
  width: 28px; height: 28px;
  border-radius: var(--pcweb-radius-circle);
  background: var(--pcweb-gradient-primary);
  color: var(--pcweb-color-text-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--pcweb-font-size-xs); font-weight: var(--pcweb-font-weight-bold);
}

.checkout-step__title {
  font-size: var(--pcweb-font-size-md);
  font-weight: var(--pcweb-font-weight-bold);
  color: var(--pcweb-color-text-primary); margin: 0;
}

.checkout-form-row { display: grid; grid-template-columns: 1fr; gap: 1rem; margin-bottom: 1rem; }
@media (min-width: 600px) {
  .checkout-form-row--2 { grid-template-columns: 1fr 1fr; }
  .checkout-form-row--3 { grid-template-columns: 2fr 1fr 1fr; }
}

.checkout-form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.checkout-form-label {
  font-size: var(--pcweb-font-size-xs);
  color: var(--pcweb-color-text-secondary);
  font-weight: var(--pcweb-font-weight-medium);
}

.checkout-form-input, .checkout-form-textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--pcweb-radius-input);
  padding: 0.75rem 1rem;
  color: var(--pcweb-color-text-primary);
  font-size: var(--pcweb-font-size-sm);
  font-family: inherit;
  transition: all var(--pcweb-transition-fast);
}

.checkout-form-input:focus, .checkout-form-textarea:focus {
  outline: none;
  border-color: var(--pcweb-color-accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 100, 255, 0.2);
}

.checkout-form-textarea { min-height: 70px; resize: vertical; }
.checkout-shipping-grid { display: grid; grid-template-columns: 1fr; gap: 0.85rem; }

.checkout-shipping-opt {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--pcweb-radius-button);
  padding: 1rem 1.25rem; cursor: pointer;
  transition: all var(--pcweb-transition-fast);
}

.checkout-shipping-opt:hover {
  background: rgba(0, 100, 255, 0.04);
  border-color: rgba(0, 100, 255, 0.4);
}

.checkout-shipping-opt--active {
  background: rgba(0, 100, 255, 0.1) !important;
  border-color: var(--pcweb-color-accent-blue) !important;
  box-shadow: 0 0 0 1px var(--pcweb-color-accent-blue);
}

.checkout-shipping-opt__info { display: flex; align-items: center; gap: 0.85rem; }
.checkout-shipping-opt__icon { font-size: 1.5rem; }
.checkout-shipping-opt__cost {
  font-weight: var(--pcweb-font-weight-bold);
  font-size: var(--pcweb-font-size-sm);
  color: var(--pcweb-color-text-primary);
}

.checkout-summary-col { align-self: start; }
.checkout-summary {
  position: sticky;
  top: calc(var(--pcweb-header-height) + 1.5rem);
}

.checkout-summary__item {
  display: flex; align-items: center; gap: 0.85rem;
  padding: 0.85rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.checkout-summary__thumb {
  width: 52px; height: 52px;
  border-radius: var(--pcweb-radius-input);
  background: #000; border: 1px solid rgba(255, 255, 255, 0.08);
  object-fit: contain; padding: 4px;
}

.checkout-summary__row {
  display: flex; justify-content: space-between;
  font-size: var(--pcweb-font-size-sm);
  color: var(--pcweb-color-text-secondary); margin-bottom: 0.5rem;
}

.checkout-summary__row--total {
  font-size: var(--pcweb-font-size-xl);
  font-weight: var(--pcweb-font-weight-extrabold);
  color: var(--pcweb-color-text-primary);
  padding-top: 0.85rem; margin-top: 0.85rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
}

.checkout-summary__payment-methods { margin-top: 1rem; text-align: center; }
.checkout-summary__payment-methods img { width: 100%; max-width: 100%; height: auto; display: block; object-fit: contain; filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4)); }
.checkout-empty { text-align: center; padding: 4rem 1.5rem; }

/* Barra Resumen Móvil (Estilo Shopify / Amazon) */
.checkout-mobile-bar { display: block; margin-bottom: 1.25rem; }
.checkout-mobile-bar__toggle {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  background: var(--pcweb-color-bg-surface); border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--pcweb-radius-input); padding: 0.85rem 1.15rem;
  color: var(--pcweb-color-text-primary); font-family: inherit; cursor: pointer;
  transition: all var(--pcweb-transition-fast);
}
.checkout-mobile-bar__toggle:hover { border-color: rgba(0, 100, 255, 0.4); }
.checkout-mobile-bar__left { display: flex; align-items: center; gap: 0.5rem; font-size: var(--pcweb-font-size-sm); }
.checkout-mobile-bar__arrow { display: inline-block; font-size: 0.75rem; transition: transform var(--pcweb-transition-fast); }
.checkout-mobile-bar__arrow--open { transform: rotate(180deg); }
.checkout-mobile-bar__total { font-weight: var(--pcweb-font-weight-bold); font-size: var(--pcweb-font-size-sm); color: var(--pcweb-color-accent-blue); }

@media (min-width: 992px) {
  .checkout-mobile-bar { display: none; }
  .checkout-summary-col { align-self: stretch; height: 100%; }
}
@media (max-width: 991px) {
  .checkout-grid { display: flex; flex-direction: column; }
  .checkout-summary-col { display: none; margin-bottom: 1.5rem; order: -1; }
  .checkout-summary-col--open { display: block !important; }
}

/* Estados Stepper Acordeón */
.checkout-card--active { border-color: rgba(0, 100, 255, 0.45); box-shadow: 0 0 20px rgba(0, 100, 255, 0.12); }
.checkout-card--completed .checkout-step__badge { background: var(--pcweb-color-accent-green) !important; }
.checkout-card--completed .checkout-step__body, .checkout-card--locked .checkout-step__body { display: none; }
.checkout-card--locked { opacity: 0.45; pointer-events: none; }
.checkout-step__summary { display: none; justify-content: space-between; align-items: center; background: rgba(255, 255, 255, 0.02); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: var(--pcweb-radius-input); padding: 0.85rem 1rem; }
.checkout-card--completed .checkout-step__summary { display: flex; }
.checkout-step__btn-edit { background: rgba(0, 100, 255, 0.1); border: 1px solid rgba(0, 100, 255, 0.3); color: var(--pcweb-color-accent-blue); padding: 0.35rem 0.85rem; border-radius: var(--pcweb-radius-pill); font-size: var(--pcweb-font-size-xs); font-weight: var(--pcweb-font-weight-bold); cursor: pointer; }
.checkout-step__btn-edit:hover { background: var(--pcweb-color-accent-blue); color: #fff; }
.checkout-step__btn-next { width: 100%; margin-top: 1.25rem; padding: 0.85rem 1.25rem; font-size: var(--pcweb-font-size-sm); font-weight: var(--pcweb-font-weight-bold); border-radius: var(--pcweb-radius-pill); background: var(--pcweb-gradient-primary); color: #fff; border: none; cursor: pointer; transition: all var(--pcweb-transition-fast); }
.checkout-step__btn-next:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(0, 100, 255, 0.4); }
.checkout-review-item { display: flex; justify-content: space-between; align-items: flex-start; padding: 0.85rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.checkout-review-item:last-child { border-bottom: none; }

/* Título de Checkout Asistido Blindado contra Mojibake en Firefox */
.assisted-checkout__title {
  font-family: var(--pcweb-font-family-sans);
  font-size: 1.15rem;
  font-weight: var(--pcweb-font-weight-bold, 700);
  color: #ffffff;
  margin-bottom: 0.35rem;
  letter-spacing: var(--pcweb-tracking-tight);
}

/* Opción C: Modo Recibo Congelado en Paso 6 */
.checkout-items-list--locked .js-co-qty,
.checkout-items-list--locked .checkout-summary__qty-stepper { display: none !important; }
.checkout-items-list--locked .checkout-form-input { pointer-events: none; opacity: 0.8; }
.checkout-summary__modify-btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  background: none; border: none; color: var(--pcweb-color-accent-blue);
  font-size: var(--pcweb-font-size-xs); font-weight: var(--pcweb-font-weight-semibold);
  cursor: pointer; padding: 0.4rem 0; margin-top: 0.5rem; text-decoration: underline;
}
.checkout-summary__modify-btn:hover { color: #fff; }