/**
 * Checkout — stepper, pasos, Stripe, confirmación
 */

.site--checkout .site__main {
  padding-top: var(--spacing-4);
}

/* ─── Header simplificado ─── */
.header--checkout {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header--checkout .header__logo {
  margin: 0;
}

.header--checkout__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  padding-top: var(--spacing-4);
  padding-bottom: var(--spacing-4);
  flex-wrap: wrap;
}

.checkout-trust {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-lg);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.checkout-trust__icon {
  color: var(--color-success);
  flex-shrink: 0;
}

.checkout-back-cart {
  margin-left: auto;
}

@media (max-width: 479px) {
  .checkout-back-cart {
    width: 100%;
    text-align: center;
    margin-left: 0;
  }
}

.checkout-section {
  padding-bottom: var(--spacing-16);
}

/* ─── Stepper ─── */
.checkout-stepper {
  margin-bottom: var(--spacing-10);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.checkout-stepper__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  min-width: min(100%, 720px);
  margin-inline: auto;
}

.checkout-stepper__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-align: center;
  min-width: 4.5rem;
  transition: color var(--transition-base);
}

.checkout-stepper__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  transition:
    border-color var(--transition-base),
    background var(--transition-base),
    color var(--transition-base);
}

.checkout-stepper__item.is-active .checkout-stepper__badge,
.checkout-stepper__item.is-done .checkout-stepper__badge {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.checkout-stepper__item.is-active {
  color: var(--color-text-primary);
}

.checkout-stepper__item.is-done {
  color: var(--color-text-secondary);
}

.checkout-stepper__item.is-done .checkout-stepper__badge {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.checkout-stepper__divider {
  flex: 1;
  height: 2px;
  max-width: 3rem;
  background: var(--color-border);
  border-radius: 1px;
  align-self: flex-start;
  margin-top: 1rem;
}

@media (min-width: 768px) {
  .checkout-stepper__item {
    flex-direction: row;
    min-width: auto;
    gap: var(--spacing-3);
  }

  .checkout-stepper__label {
    white-space: nowrap;
  }
}

/* ─── Layout pasos ─── */
.checkout-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  padding: var(--spacing-12);
}

.checkout-loading__text {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.checkout-flow {
  animation: checkoutFadeIn 0.35s ease;
}

@keyframes checkoutFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.checkout-step {
  outline: none;
}

.checkout-grid {
  max-width: 720px;
  margin-inline: auto;
}

.checkout-grid--payment {
  max-width: none;
  display: grid;
  gap: var(--spacing-8);
  align-items: start;
}

@media (min-width: 1024px) {
  .checkout-grid--payment {
    grid-template-columns: 1fr minmax(300px, 380px);
  }
}

.checkout-panel__title {
  margin: 0 0 var(--spacing-2);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
}

.checkout-panel__hint {
  margin: 0 0 var(--spacing-6);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.checkout-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-4);
  margin-top: var(--spacing-10);
  flex-wrap: wrap;
}

/* ─── Direcciones ─── */
.checkout-address-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
}

.checkout-address-card {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-4);
  padding: var(--spacing-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  text-align: left;
}

.checkout-address-card:hover {
  border-color: var(--color-primary-light);
}

.checkout-address-card.is-selected {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.checkout-address-card__radio {
  margin-top: 0.25rem;
  accent-color: var(--color-primary);
  width: 1.125rem;
  height: 1.125rem;
}

.checkout-address-card__body {
  flex: 1;
  min-width: 0;
}

.checkout-address-card__line {
  margin: 0 0 var(--spacing-1);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.checkout-address-card__meta {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.checkout-address-card__badge {
  margin-top: var(--spacing-2);
}

.checkout-add-address-toggle {
  width: 100%;
  margin-bottom: var(--spacing-4);
}

.checkout-new-address {
  padding: var(--spacing-6);
  margin-bottom: var(--spacing-4);
}

.checkout-new-address__title {
  margin: 0 0 var(--spacing-4);
  font-size: var(--font-size-lg);
}

.checkout-form-row {
  display: grid;
  gap: var(--spacing-4);
}

@media (min-width: 640px) {
  .checkout-form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.checkout-new-address__actions {
  margin-top: var(--spacing-4);
}

.checkout-new-address.hidden {
  display: none !important;
}

/* ─── Envío ─── */
.checkout-shipping-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.checkout-ship-option {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-4);
  padding: var(--spacing-5);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  text-align: left;
}

.checkout-ship-option:hover {
  border-color: var(--color-primary-light);
}

.checkout-ship-option.is-selected {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.checkout-ship-option__radio {
  margin-top: 0.2rem;
  accent-color: var(--color-primary);
}

.checkout-ship-option__body {
  flex: 1;
}

.checkout-ship-option__title {
  margin: 0 0 var(--spacing-1);
  font-weight: var(--font-weight-semibold);
}

.checkout-ship-option__desc {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.checkout-ship-option__price {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  white-space: nowrap;
}

/* ─── Pago / cupón / Stripe ─── */
.checkout-coupon {
  padding: var(--spacing-5);
  margin-bottom: var(--spacing-6);
}

.checkout-coupon__row {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.checkout-coupon__row .form-input {
  flex: 1;
  min-width: 160px;
}

.checkout-coupon__feedback {
  margin: var(--spacing-2) 0 0;
  font-size: var(--font-size-sm);
  min-height: 1.25rem;
}

.checkout-coupon__feedback.is-ok {
  color: var(--color-success);
}

.checkout-coupon__feedback.is-err {
  color: var(--color-danger);
}

.checkout-stripe-card {
  padding: var(--spacing-5);
}

.checkout-stripe-element {
  padding: var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.checkout-stripe-element.StripeElement--focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.checkout-stripe-element.StripeElement--invalid {
  border-color: var(--color-danger);
}

.checkout-card-errors:empty {
  display: none;
}

.checkout-card-errors {
  margin-top: var(--spacing-2);
}

.checkout-save-pm {
  margin-top: var(--spacing-6);
  align-items: flex-start;
  gap: var(--spacing-3);
}

/* ─── Resumen lateral ─── */
.checkout-summary {
  padding: var(--spacing-6);
  position: sticky;
  top: calc(var(--spacing-4) + 4rem);
}

.checkout-summary__title {
  margin: 0 0 var(--spacing-4);
  font-size: var(--font-size-lg);
}

.checkout-summary__items {
  list-style: none;
  margin: 0 0 var(--spacing-4);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  max-height: 280px;
  overflow-y: auto;
}

.checkout-summary__item {
  display: grid;
  grid-template-columns: 3.5rem 1fr auto;
  gap: var(--spacing-3);
  align-items: center;
}

.checkout-summary__thumb {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.checkout-summary__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.checkout-summary__name {
  margin: 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1.35;
}

.checkout-summary__qty {
  margin: 0.125rem 0 0;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.checkout-summary__price {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.checkout-summary__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2);
  color: var(--color-text-secondary);
}

.checkout-summary__row--total {
  margin-top: var(--spacing-2);
  margin-bottom: var(--spacing-4);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.checkout-pay-btn {
  width: 100%;
  position: relative;
}

.checkout-pay-btn.is-loading .checkout-pay-btn__label {
  opacity: 0;
}

.checkout-pay-btn.is-loading .checkout-pay-btn__spinner {
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.checkout-pay-btn__spinner {
  width: 1.5rem;
  height: 1.5rem;
  border-width: 2px;
}

/* ─── Confirmación ─── */
.checkout-success {
  max-width: 520px;
  margin-inline: auto;
  text-align: center;
  padding: var(--spacing-10) var(--spacing-4);
}

.checkout-success__icon {
  margin-bottom: var(--spacing-6);
  color: var(--color-success);
}

.checkout-success__circle {
  stroke: currentColor;
  opacity: 0.25;
  transform-origin: center;
  animation: checkoutPop 0.55s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.checkout-success__check {
  stroke: currentColor;
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  animation: checkoutDraw 0.45s ease 0.35s forwards;
}

@keyframes checkoutPop {
  from {
    transform: scale(0.6);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 0.25;
  }
}

@keyframes checkoutDraw {
  to {
    stroke-dashoffset: 0;
  }
}

.checkout-success__title {
  margin: 0 0 var(--spacing-3);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
}

.checkout-success__text {
  margin: 0 0 var(--spacing-2);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.checkout-success__sub {
  margin: 0 0 var(--spacing-8);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.checkout-success__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  justify-content: center;
}

.footer--checkout {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
}

.checkout-footer-bottom {
  padding-top: var(--spacing-6);
  padding-bottom: var(--spacing-6);
  justify-content: center;
}

.site--checkout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site--checkout .site__main {
  flex: 1;
}