.checkout-hero {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.checkout-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--space-24);
  align-items: center;
}

.checkout-hero__content p {
  max-width: 34rem;
}

.checkout-hero__meta {
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.checkout-hero__hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.checkout-hero__image-wrapper {
  max-width: 480px;
  margin-left: auto;
}

.checkout-hero__image {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(320px, 1fr);
  gap: var(--space-24);
  align-items: flex-start;
}

.checkout-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.checkout-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.checkout-section__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-12);
}

.checkout-section__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.checkout-section__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.checkout-section__edit-link {
  font-size: var(--font-size-sm);
}

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

.checkout-summary {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: var(--space-16);
  align-items: flex-start;
}

.checkout-summary__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.checkout-item {
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  padding: var(--space-12);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-muted);
}

.checkout-item__info {
  flex: 1;
}

.checkout-item__name {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-4);
}

.checkout-item__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.checkout-item__controls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-8);
  min-width: 180px;
}

.checkout-item__qty {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  overflow: hidden;
  background-color: #ffffff;
}

.checkout-qty-btn {
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  font-size: var(--font-size-sm);
  background-color: transparent;
}

.checkout-qty-btn:hover {
  background-color: var(--color-neutral-100);
}

.checkout-qty-input {
  width: 3rem;
  border: none;
  text-align: center;
  box-shadow: none;
}

.checkout-item__prices {
  text-align: right;
}

.checkout-summary__image-wrapper {
  max-width: 320px;
  margin-left: auto;
}

.checkout-summary__image {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.checkout-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-12) var(--space-16);
}

.checkout-form-group--full {
  grid-column: 1 / -1;
}

.checkout-checkbox-inline {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
}

.checkout-checkbox-input {
  margin-top: 0.25rem;
}

.checkout-checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
}

.checkout-delivery {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  gap: var(--space-16);
}

.checkout-delivery__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.checkout-delivery-option {
  display: block;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  padding: var(--space-12);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.checkout-delivery-option__content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-12);
}

.checkout-delivery-option__title {
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.checkout-delivery-option__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}

.checkout-delivery-option__price {
  text-align: right;
}

.checkout-delivery__image-wrapper {
  max-width: 280px;
  margin-left: auto;
}

.checkout-delivery__image {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.checkout-radio-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkout-delivery-option:has(.checkout-radio-input:checked),
.checkout-payment-option:has(.checkout-radio-input:checked) {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft);
  background-color: var(--color-bg-muted);
}

.checkout-payment-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.checkout-payment-option {
  display: block;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  padding: var(--space-12);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.checkout-payment-option__content {
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  align-items: flex-start;
}

.checkout-payment-option__title {
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.checkout-payment-option__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}

.checkout-security__items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-12);
}

.checkout-security__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.checkout-security__icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-soft);
}

.checkout-security__title {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.checkout-security__link {
  font-size: var(--font-size-sm);
}

.checkout-sidebar__section {
  padding: var(--space-12) var(--space-12) var(--space-16);
}

.checkout-sidebar__title {
  font-size: var(--font-size-lg);
  margin-bottom: 0;
}

.checkout-summary-totals {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.checkout-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
}

.checkout-summary-row--promo {
  color: var(--color-success);
}

.checkout-summary-row--total span:last-child {
  font-size: var(--font-size-lg);
}

.checkout-summary-note {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.checkout-promo__row {
  display: flex;
  gap: var(--space-8);
}

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

.checkout-agreements {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.checkout-agreements__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
}

.checkout-sidebar__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-top: var(--space-4);
}

.checkout-submit {
  width: 100%;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
  font-size: var(--font-size-base);
}

.checkout-cta-note {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.hidden {
  display: none !important;
}

@media (max-width: 1024px) {
  .checkout-layout {
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, 1fr);
  }

  .checkout-summary,
  .checkout-delivery {
    grid-template-columns: minmax(0, 1fr);
  }

  .checkout-summary__image-wrapper,
  .checkout-delivery__image-wrapper {
    max-width: 220px;
    margin: 0 auto;
  }

  .checkout-security__items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .checkout-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .checkout-sidebar {
    position: sticky;
    bottom: 0;
    z-index: 10;
  }
}

@media (max-width: 720px) {
  .checkout-hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .checkout-hero__image-wrapper {
    max-width: 360px;
    margin: 0 auto;
  }

  .checkout-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .checkout-item__controls {
    width: 100%;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .checkout-form-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .checkout-security__items {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 520px) {
  .checkout-section__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .checkout-promo__row {
    flex-direction: column;
  }
}