/* ==========================================================================
   DEVSTUDIO — SHOPPING BAG & ORDER REVIEW STYLESHEET
   Full Order Review Matrix, Coupon Validation Engine & Summary Sidebar
   ========================================================================== */

/* 1. Cart Page Header */
.cart-page-header {
  background-color: var(--ds-bg-surface-secondary);
  border-bottom: 1px solid var(--ds-border-subtle);
  padding: 36px 0 44px 0;
}

.cart-page-heading {
  font-size: clamp(2rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.cart-page-subheading {
  font-size: 1rem;
  color: var(--ds-text-secondary);
  max-width: 680px;
}

/* 2. Cart Page Layout: Two Columns */
.cart-page-layout {
  padding: 48px 0 88px 0;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: flex-start;
}

/* 3. Left: Cart Table Card */
.cart-items-card {
  background-color: var(--ds-bg-surface);
  border: 1px solid var(--ds-border-subtle);
  border-radius: var(--ds-radius-lg);
  overflow: hidden;
}

.cart-table-header {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr 48px;
  padding: 16px 24px;
  background-color: var(--ds-bg-surface-secondary);
  border-bottom: 1px solid var(--ds-border-subtle);
  font-size: 0.75rem;
  font-weight: var(--ds-font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ds-text-tertiary);
  align-items: center;
}

.cart-table-body {
  display: flex;
  flex-direction: column;
}

.cart-table-row {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr 48px;
  padding: 24px;
  border-bottom: 1px solid var(--ds-border-subtle);
  align-items: center;
  gap: 12px;
}

.cart-row-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-row-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--ds-radius-sm);
  background-color: var(--ds-bg-surface-secondary);
  border: 1px solid var(--ds-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: var(--ds-font-weight-bold);
  color: var(--ds-text-muted);
  flex-shrink: 0;
}

.cart-row-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.cart-row-title {
  font-size: 0.9375rem;
  font-weight: var(--ds-font-weight-semibold);
  color: var(--ds-text-primary);
  margin-bottom: 2px;
}

.cart-row-title a:hover {
  color: var(--ds-brand-accent);
}

.cart-row-variant {
  font-size: 0.8125rem;
  color: var(--ds-text-tertiary);
  margin-bottom: 4px;
}

.cart-row-sku {
  font-size: 0.6875rem;
  font-family: var(--ds-font-mono);
  color: var(--ds-text-muted);
}

.cart-row-price {
  font-size: 0.9375rem;
  font-weight: var(--ds-font-weight-medium);
  color: var(--ds-text-primary);
}

.cart-row-qty {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ds-border-default);
  border-radius: var(--ds-radius-sm);
  background-color: var(--ds-bg-surface);
  width: fit-content;
}

.cart-qty-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--ds-text-secondary);
  transition: color var(--ds-transition-fast);
}

.cart-qty-btn:hover {
  color: var(--ds-text-primary);
}

.cart-qty-val {
  width: 28px;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: var(--ds-font-weight-semibold);
  color: var(--ds-text-primary);
}

.cart-row-total {
  font-size: 1rem;
  font-weight: var(--ds-font-weight-bold);
  color: var(--ds-text-primary);
}

.cart-row-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--ds-text-muted);
  border-radius: var(--ds-radius-full);
  transition: color var(--ds-transition-fast), background-color var(--ds-transition-fast);
}

.cart-row-remove:hover {
  color: var(--ds-color-danger);
  background-color: var(--ds-color-danger-bg);
}

.cart-table-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background-color: var(--ds-bg-surface-secondary);
  border-top: 1px solid var(--ds-border-subtle);
}

.btn-clear-cart {
  font-size: 0.8125rem;
  color: var(--ds-color-danger);
  font-weight: var(--ds-font-weight-medium);
}

.btn-clear-cart:hover {
  text-decoration: underline;
}

/* 4. Empty State */
.cart-page-empty-state {
  background-color: var(--ds-bg-surface);
  border: 1px dashed var(--ds-border-default);
  border-radius: var(--ds-radius-lg);
  padding: 80px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--ds-text-tertiary);
}

.cart-page-empty-state h2 {
  color: var(--ds-text-primary);
}

.cart-page-empty-state p {
  max-width: 480px;
  margin-bottom: 8px;
}

/* 5. Right: Summary Sidebar */
.cart-summary-sidebar {
  position: sticky;
  top: calc(var(--ds-header-height) + 24px);
}

.summary-card {
  background-color: var(--ds-bg-surface);
  border: 1px solid var(--ds-border-subtle);
  border-radius: var(--ds-radius-lg);
  padding: 28px 24px;
}

.summary-card-title {
  font-size: 1.1875rem;
  font-weight: var(--ds-font-weight-bold);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ds-border-subtle);
}

/* Coupon Section */
.coupon-section {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--ds-border-subtle);
}

.coupon-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: var(--ds-font-weight-semibold);
  color: var(--ds-text-primary);
  margin-bottom: 8px;
}

.coupon-input-group {
  display: flex;
  gap: 8px;
}

.coupon-input-group input {
  text-transform: uppercase;
}

.coupon-feedback {
  font-size: 0.75rem;
  font-weight: var(--ds-font-weight-medium);
  margin-top: 6px;
  min-height: 16px;
}

.coupon-feedback.success {
  color: var(--ds-color-success);
}

.coupon-feedback.error {
  color: var(--ds-color-danger);
}

/* Summary Breakdown Lines */
.summary-breakdown {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.summary-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9375rem;
  color: var(--ds-text-secondary);
}

.summary-line span:last-child {
  font-weight: var(--ds-font-weight-semibold);
  color: var(--ds-text-primary);
}

.text-free-shipping {
  color: var(--ds-color-success) !important;
  font-weight: var(--ds-font-weight-bold) !important;
}

.summary-divider {
  height: 1px;
  background-color: var(--ds-border-subtle);
  margin: 4px 0;
}

.summary-total-line {
  font-size: 1.125rem;
}

.summary-total-line span:first-child {
  font-weight: var(--ds-font-weight-bold);
  color: var(--ds-text-primary);
}

.summary-total-price {
  font-size: 1.5rem;
  font-weight: var(--ds-font-weight-bold);
  color: var(--ds-text-primary);
  letter-spacing: -0.02em;
}

.btn-checkout-main {
  margin-bottom: 24px;
}

/* Summary Trust Points */
.summary-trust-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--ds-border-subtle);
}

.trust-point {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--ds-text-secondary);
}

.trust-point svg {
  color: var(--ds-brand-accent);
  flex-shrink: 0;
}

/* 6. Responsive Adaptations */
@media (max-width: 1024px) {
  .cart-page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cart-summary-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .cart-table-header {
    display: none;
  }

  .cart-table-row {
    grid-template-columns: 1fr;
    gap: 16px;
    position: relative;
    padding: 20px 16px;
  }

  .cart-row-item {
    padding-right: 36px;
  }

  .cart-row-price {
    display: flex;
    justify-content: space-between;
  }

  .cart-row-price::before {
    content: "Unit Price:";
    color: var(--ds-text-tertiary);
    font-size: 0.8125rem;
  }

  .cart-row-qty {
    display: flex;
    align-self: flex-start;
  }

  .cart-row-total {
    display: flex;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 1px dashed var(--ds-border-subtle);
  }

  .cart-row-total::before {
    content: "Line Total:";
    font-size: 0.875rem;
    color: var(--ds-text-secondary);
  }

  .cart-row-remove {
    position: absolute;
    top: 16px;
    right: 16px;
  }
}