.checkout-main {
  padding-bottom: var(--space-10);
}

.checkout-hero {
  padding-top: var(--space-10);
  padding-bottom: var(--space-8);
}

.checkout-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.2fr);
  gap: var(--space-8);
  align-items: center;
}

.checkout-hero__eyebrow {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.checkout-hero__subtitle {
  max-width: 34rem;
  color: var(--color-text-muted);
}

.checkout-hero__trust {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkout-hero__lock {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(34, 211, 238, 0.4);
  font-size: var(--font-size-sm);
}

.checkout-hero__lock-icon {
  display: inline-flex;
}

.checkout-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.checkout-hero__summary-card {
  max-width: 420px;
  justify-self: flex-end;
}

.checkout-hero__summary-card img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.checkout-layout {
  padding-bottom: var(--space-12);
}

.checkout-layout__grid {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.2fr);
  gap: var(--space-8);
  align-items: flex-start;
}

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

.checkout-layout__sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.checkout-section {
  background-color: rgba(15, 23, 42, 0.96);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.checkout-section--compact {
  margin-top: var(--space-4);
}

.checkout-section__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: flex-start;
  margin-bottom: var(--space-4);
}

.checkout-section__header--compact {
  margin-bottom: var(--space-3);
}

.checkout-section__subtitle {
  color: var(--color-text-muted);
  max-width: 34rem;
}

.checkout-section__subtitle--tight {
  margin-top: var(--space-1);
}

.checkout-section__edit-link {
  white-space: nowrap;
}

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

.checkout-order {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.7fr);
  gap: var(--space-6);
}

.checkout-order__visual img {
  border-radius: var(--radius-md);
  border: 1px solid rgba(15, 23, 42, 0.9);
  box-shadow: var(--shadow-sm);
}

.checkout-order__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.checkout-order-item {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.2fr);
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.checkout-order-item:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.checkout-order-item__title {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
}

.checkout-order-item__compatibility {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

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

.checkout-order-item__controls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-2);
}

.checkout-order-item__qty-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.checkout-order-item__price {
  font-weight: 600;
}

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

.checkout-qty__btn {
  padding: 0.35rem 0.7rem;
  background: rgba(15, 23, 42, 0.9);
  color: var(--color-text);
  font-size: var(--font-size-base);
  line-height: 1;
}

.checkout-qty__input {
  width: 3rem;
  border-radius: 0;
  border-left: 1px solid var(--color-border-subtle);
  border-right: 1px solid var(--color-border-subtle);
  text-align: center;
  padding-inline: 0.4rem;
}

.checkout-order__compatibility-note {
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background-color: rgba(15, 23, 42, 0.9);
  border: 1px dashed rgba(34, 211, 238, 0.5);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.checkout-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.checkout-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.checkout-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkout-form__field--fullwidth {
  grid-column: 1 / -1;
}

.checkout-form label,
.checkout-fieldset legend {
  font-size: var(--font-size-sm);
}

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

.checkout-form__hint--secure {
  margin-top: var(--space-2);
}

.checkout-fieldset {
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.checkout-fieldset legend {
  padding: 0 var(--space-2);
}

.checkout-delivery-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.checkout-delivery-option {
  display: block;
}

.checkout-delivery-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkout-delivery-option__body {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.95);
  cursor: pointer;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

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

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

.checkout-delivery-option__price {
  font-weight: 600;
}

.checkout-delivery-option input[type="radio"]:checked + .checkout-delivery-option__body {
  border-color: rgba(34, 211, 238, 0.7);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.6);
}

.checkout-payment-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.7fr);
  gap: var(--space-4);
}

.checkout-payment-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.checkout-payment-method {
  display: block;
}

.checkout-payment-method input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkout-payment-method__body {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.95);
  cursor: pointer;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

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

.checkout-payment-method__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.checkout-payment-method input[type="radio"]:checked + .checkout-payment-method__body {
  border-color: rgba(34, 211, 238, 0.7);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.6);
}

.checkout-payment-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.checkout-security-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.checkout-security-badge {
  font-size: var(--font-size-xs);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.7);
  background-color: rgba(15, 23, 42, 0.95);
}

.checkout-coupon {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

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

.checkout-coupon__feedback {
  margin-top: var(--space-2);
}

.checkout-recommendations {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.8fr);
  gap: var(--space-4);
  align-items: center;
}

.checkout-recommendations__visual img {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
}

.checkout-recommendations__list {
  display: grid;
  gap: var(--space-4);
}

.checkout-recommendation__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkout-recommendation__compatibility {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
}

.checkout-recommendation__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.checkout-recommendation__price {
  font-weight: 600;
}

.checkout-terms {
  margin-top: var(--space-4);
}

.checkout-terms__checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.checkout-terms__checkbox input[type="checkbox"] {
  margin-top: 0.2rem;
}

.checkout-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

.checkout-summary__line--discount span:last-child {
  color: var(--color-success);
}

.checkout-summary__total {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-4);
}

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

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

.checkout-summary__total-amount {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-primary);
}

.checkout-summary__cta {
  width: 100%;
  margin-top: var(--space-2);
}

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

.checkout-summary__mobile-note {
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--gray-300);
}

.checkout-summary__list {
  margin-top: var(--space-2);
  padding-left: 1.1rem;
}

.checkout-summary__image img {
  margin-top: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
}

.checkout-trust__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

.checkout-trust__list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.checkout-trust__icon {
  font-size: 1.25rem;
}

.checkout-trust__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: flex-start;
}

.checkout-trust__item-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

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

.checkout-trust__link {
  display: inline-flex;
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
}

.checkout-help {
  padding-bottom: var(--space-10);
}

.checkout-help__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 55%), rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.checkout-help__content p {
  color: var(--color-text-muted);
  max-width: 34rem;
}

.checkout-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 1024px) {
  .checkout-hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
    gap: var(--space-6);
  }

  .checkout-layout__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  }

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

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

@media (max-width: 840px) {
  .checkout-hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .checkout-hero__summary-card {
    max-width: 340px;
    justify-self: flex-start;
  }

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

  .checkout-layout__sidebar {
    order: -1;
  }

  .checkout-section {
    padding: var(--space-4);
  }
}

@media (max-width: 720px) {
  .checkout-section__header {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

  .checkout-order-item__controls {
    align-items: flex-start;
  }

  .checkout-coupon {
    flex-direction: column;
    align-items: stretch;
  }

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

  .checkout-summary__total-amount {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 480px) {
  .checkout-hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-6);
  }

  .checkout-main {
    padding-bottom: var(--space-8);
  }

  .checkout-layout {
    padding-bottom: var(--space-8);
  }

  .checkout-help {
    padding-bottom: var(--space-8);
  }
}