.product-page .product-detail {
  grid-template-columns: minmax(0, 1.05fr) minmax(22rem, 0.95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
}

/* ORDER-PDP-UI-REFRESH-01 — selected mockup B. */

.product-page .product-summary h1 {
  margin-bottom: 0.35rem;
  font-size: clamp(1.55rem, 2.4vw, 2rem);
}

.summary-review-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--storefront-text);
  font-size: 0.875rem;
  font-weight: 600;
  text-underline-offset: 0.2rem;
}

.price-stack {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.6rem;
}

.price-stack strong {
  order: 3;
}

.price-stack del {
  color: var(--storefront-muted);
  font-size: 0.9rem;
}

.actual-discount {
  color: var(--brand-accent);
  font-size: 1.15rem;
  font-weight: 600;
}

.available-benefit {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1rem;
  padding: 0.75rem 0.875rem;
  background: var(--storefront-tint);
  border-radius: 0.5rem;
  font-size: 0.875rem;
}

.available-benefit span {
  color: var(--brand-accent);
  font-weight: 600;
}

.product-page .purchase-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: stretch;
  gap: 0.625rem;
}

.product-page .order-form {
  display: grid;
  grid-column: 1 / -1;
  gap: 0.75rem;
  margin: 0;
}

.purchase-controls {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto 5.25rem;
  align-items: center;
  gap: 0.5rem;
}

.purchase-controls label {
  font-size: 0.875rem;
  font-weight: 600;
}

.purchase-controls select,
.purchase-controls input {
  width: 100%;
  min-height: 3rem;
  padding: 0.65rem 0.75rem;
  color: var(--storefront-text);
  background: var(--storefront-background);
  border: 1px solid #c8cad0;
  border-radius: 0.5rem;
  font: inherit;
}

.order-total {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--storefront-line);
  font-size: 0.875rem;
}

.order-total strong {
  color: var(--storefront-ink);
  font-size: 1.15rem;
}

.primary-purchase-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.625rem;
}

.primary-purchase-buttons > :only-child {
  grid-column: 1 / -1;
}

.cart-button {
  display: inline-flex;
  min-height: 3.375rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 0.9rem;
  color: var(--brand-accent);
  background: var(--storefront-background);
  border: 1px solid var(--brand-accent);
  border-radius: 0.5rem;
  font: inherit;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.purchase-secondary {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.product-page .inquiry-button,
.product-page .share-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0.3rem 0.5rem;
  border: 0;
  background: transparent;
  color: var(--storefront-muted);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.2rem;
  cursor: pointer;
}

.single-product-controls {
  grid-template-columns: auto 5.25rem;
  justify-content: end;
}

.product-share {
  position: relative;
}

.product-page .product-summary:has(.product-share[open]) {
  z-index: 11;
}

.share-menu {
  position: absolute;
  right: 0;
  z-index: 30;
  width: min(19rem, calc(100vw - 2.5rem));
  padding: 0.75rem;
  border: 1px solid var(--storefront-line);
  border-radius: 0.5rem;
  background: var(--storefront-background);
  box-shadow: 0 4px 16px #0002;
}

.share-menu button,
.share-menu input {
  width: 100%;
  min-height: 44px;
  padding: 0.5rem;
  font: inherit;
}

.share-menu p,
.share-menu label {
  font-size: 0.8125rem;
  overflow-wrap: anywhere;
}

.share-menu [hidden] {
  display: none;
}

.cart-button:disabled,
.buy-button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.cart-feedback {
  min-height: 1.4em;
  margin: 0;
  color: var(--storefront-muted);
  font-size: 0.8125rem;
}

.cart-feedback[data-state="success"] {
  color: var(--brand-primary);
  font-weight: 600;
}

.cart-feedback[data-state="error"] {
  color: var(--brand-small-accent);
  font-weight: 600;
}

.cart-feedback a {
  margin-left: 0.45rem;
  font-weight: 600;
}

.seller-business-details {
  border-top: 1px solid var(--storefront-line);
}

.seller-business-details summary {
  display: flex;
  min-height: 3rem;
  align-items: center;
  font-weight: 600;
  cursor: pointer;
}

@media (max-width: 768px) {
  .product-page {
    padding-bottom: calc(15.5rem + env(safe-area-inset-bottom));
  }

  .product-page .product-detail {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }

  .product-page .buy-card {
    padding: 1rem;
  }

  .product-page .purchase-actions {
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: stretch;
    padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom));
  }

  .product-page .purchase-actions .order-form {
    display: grid;
    grid-column: 1 / -1;
    gap: 0.5rem;
  }

  .purchase-controls {
    grid-template-columns: minmax(0, 1fr) 5rem;
  }

  .purchase-controls.single-product-controls {
    grid-template-columns: 5rem;
  }

  .share-menu {
    bottom: 100%;
  }

  .purchase-controls label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .product-page .purchase-actions select,
  .product-page .purchase-actions input,
  .product-page .purchase-actions .buy-button,
  .product-page .purchase-actions .cart-button,
  .product-page .purchase-actions .inquiry-button,
  .product-page .purchase-actions .share-button {
    min-height: 3rem;
  }

  .inquiry-button,
  .share-button {
    min-width: 4.75rem;
  }

  .cart-feedback:empty {
    display: none;
  }
}

@media (max-width: 390px) {
  .product-page .purchase-actions {
    gap: 0.45rem;
    padding-inline: 0.75rem;
  }

  .primary-purchase-buttons {
    gap: 0.45rem;
  }

  .inquiry-button,
  .share-button {
    min-width: 4.25rem;
    padding-inline: 0.5rem;
    font-size: 0.8125rem;
  }
}