body {
  background-color: var(--color-background);
}

.checkout-main {
  padding-top: var(--space-32);
  padding-bottom: var(--space-40);
}

.checkout-breadcrumbs {
  margin-bottom: var(--space-16);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.checkout-breadcrumbs-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.checkout-breadcrumbs-item--current {
  color: var(--color-text);
  font-weight: 500;
}

.checkout-breadcrumbs-separator {
  color: var(--color-gray-400);
}

.checkout-header {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: var(--space-24);
  align-items: center;
  margin-bottom: var(--space-32);
}

.checkout-header-lead {
  max-width: 640px;
}

.checkout-steps-visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated);
}

.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.2fr);
  gap: var(--space-24);
  align-items: flex-start;
}

.checkout-section {
  margin-bottom: var(--space-20);
}

.checkout-main-column {
  display: flex;
  flex-direction: column;
}

.checkout-summary-column {
  position: sticky;
  top: var(--space-24);
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.checkout-products-visual {
  margin-bottom: var(--space-16);
}

.checkout-products-visual img {
  width: 100%;
  border-radius: var(--radius-md);
}

.checkout-table {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-100);
  overflow: hidden;
}

.checkout-table-row {
  display: grid;
  grid-template-columns: 2.4fr 0.9fr 0.8fr 1fr;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-12);
  align-items: flex-start;
}

.checkout-table-row--head {
  background-color: var(--color-gray-50);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-muted);
}

.checkout-table-body .checkout-table-row:nth-child(odd) {
  background-color: #ffffff;
}

.checkout-table-body .checkout-table-row:nth-child(even) {
  background-color: var(--color-gray-50);
}

.checkout-table-cell--right {
  text-align: right;
}

.checkout-product-name {
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.checkout-cart-footer {
  gap: var(--space-8);
}

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

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

.checkout-form-grid--3 {
  grid-template-columns: 0.9fr 1.3fr 1.1fr;
}

.checkout-form-field {
  display: flex;
  flex-direction: column;
}

.checkout-save-address {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--font-size-sm);
}

.checkout-save-address input[type="checkbox"] {
  width: 16px;
  height: 16px;
}

.checkout-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.checkout-option {
  display: flex;
  gap: var(--space-10);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  padding: var(--space-10) var(--space-12);
  cursor: pointer;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.checkout-option input[type="radio"] {
  margin-top: 4px;
}

.checkout-option-content {
  width: 100%;
}

.checkout-option-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-8);
  margin-bottom: var(--space-4);
}

.checkout-option-title {
  font-weight: 500;
}

.checkout-option-price {
  font-weight: 500;
}

.checkout-option-badges {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: var(--color-text-muted);
}

.checkout-option:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.checkout-option input[type="radio"]:checked + .checkout-option-content,
.checkout-option input[type="radio"]:focus-visible + .checkout-option-content {
  outline: none;
}

.checkout-option input[type="radio"]:checked ~ .checkout-option-content {
  border-radius: inherit;
  box-shadow: var(--shadow-soft);
}

.checkout-security {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.checkout-security-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.checkout-security-badge {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary-soft);
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-strong);
}

.checkout-cost-summary .card-body {
  padding-bottom: var(--space-10);
}

.checkout-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-6);
}

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

.checkout-summary-row--total {
  font-size: var(--font-size-lg);
  font-weight: 500;
}

.checkout-discount {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

.checkout-discount-inline {
  display: grid;
  grid-template-columns: 1.4fr auto;
  gap: var(--space-8);
}

.checkout-submit-btn {
  width: 100%;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.checkout-legal-text {
  text-align: center;
}

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

.checkout-step {
  padding-left: var(--space-10);
  border-left: 1px solid var(--color-gray-200);
}

.checkout-step-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.checkout-step--done .checkout-step-label::before,
.checkout-step--current .checkout-step-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background-color: var(--color-primary);
}

.checkout-step:not(.checkout-step--done):not(.checkout-step--current) .checkout-step-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid var(--color-gray-300);
  background-color: #ffffff;
}

.checkout-step--current {
  border-left-color: var(--color-primary);
}

.checkout-help-title {
  font-size: var(--font-size-xl);
}

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

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

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

.checkout-contact-hint a {
  text-decoration: underline;
}

.checkout-header .divider {
  margin-top: var(--space-6);
}

.checkout-discount-inline .btn {
  white-space: nowrap;
}

.checkout-summary-column .card {
  box-shadow: var(--shadow-elevated);
}

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

@media (max-width: 880px) {
  .checkout-header {
    grid-template-columns: minmax(0, 1fr);
  }

  .checkout-steps-visual {
    max-width: 360px;
    justify-self: flex-start;
  }

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

  .checkout-summary-column {
    position: static;
  }

  .checkout-table-row {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    grid-template-rows: auto auto;
  }

  .checkout-table-row > .checkout-table-cell:nth-child(3) {
    text-align: left;
  }

  .checkout-table-row > .checkout-table-cell:nth-child(4) {
    grid-column: 2 / 3;
  }

  .checkout-form-grid,
  .checkout-form-grid--3,
  .checkout-discount-inline {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .checkout-main {
    padding-top: var(--space-24);
    padding-bottom: var(--space-32);
  }

  .checkout-breadcrumbs {
    font-size: var(--font-size-xs);
  }

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

  .card {
    padding: var(--space-12);
  }
}