.product-page { display: grid; gap: var(--space-5); padding: var(--space-5) 0 var(--space-7); }
  nav.breadcrumb { font-size: 0.95rem; }
  nav.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; list-style: none; }
  nav.breadcrumb li { display: inline-flex; align-items: center; gap: 6px; color: var(--color-muted); }
  nav.breadcrumb li:last-child { color: var(--color-dark); font-weight: 600; }
  .price-stack,
  .price-box { display: grid; gap: 4px; }
  .price-old { color: var(--color-muted); font-size: 0.95rem; }
  .price-new { font-size: 1.1rem; font-weight: 600; }
  .price-savings { color: var(--color-primary); font-size: 0.9rem; }
  .discount-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: rgba(16, 185, 129, 0.12); color: #047857; font-weight: 700; font-size: 0.85rem; width: fit-content; }
  nav.breadcrumb li::after { content: '/'; opacity: 0.55; }
  nav.breadcrumb li:last-child::after { content: ''; }

  .product-layout { display: grid; grid-template-columns: minmax(0, 1.23fr) minmax(320px, 0.77fr); gap: var(--space-1); align-items: start; }
  .hero-media { display: grid; gap: var(--space-3); }
  .product-info { display: grid; gap: var(--space-3); }
  .gallery { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-3); box-shadow: var(--shadow-md); display: grid; gap: var(--space-3); }
  .gallery-main { position: relative; border-radius: var(--radius-md); overflow: hidden; background: #f3f4f6; min-height: 320px; display: grid; place-items: center; }
  .gallery-main img { width: 100%; height: 100%; object-fit: contain; }
  .thumbnails { display: grid; grid-template-columns: repeat(auto-fit, minmax(72px, 1fr)); gap: var(--space-2); }
  .thumbnail { border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 4px; background: #fff; display: grid; place-items: center; cursor: pointer; transition: box-shadow 0.15s ease, border-color 0.15s ease; }
  .thumbnail[aria-pressed="true"] { border-color: var(--color-primary); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
  .thumbnail img { width: 100%; height: 72px; object-fit: contain; }

  .panel { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); box-shadow: var(--shadow-md); }
  .description-block { display: grid; gap: var(--space-2); }
  .configurator-block { background: #f9fafb; border-style: dashed; }
  .page-title { margin: 0; font-size: clamp(1.6rem, 2.5vw, 2.2rem); letter-spacing: -0.01em; }
  .lead { color: var(--color-muted); margin: var(--space-1) 0; }
  .price { font-size: 1.6rem; font-weight: 700; margin: 0; }
  .muted { color: var(--color-muted); }
  .badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: var(--radius-sm); font-weight: 600; }
  .badge.success { background: rgba(0, 102, 174, 0.08); color: var(--color-primary); }
  .badge.warning { background: rgba(255, 140, 14, 0.12); color: #b45309; }

  .buy-box-wrapper { position: sticky; top: var(--sticky-offset-desktop, var(--space-5)); }
  .buy-box { display: grid; gap: var(--space-3); position: relative; }
  .buy-box-body { display: grid; gap: var(--space-3); }
  .buy-box-mobile-bar { display: none; gap: var(--space-2); border-top: 1px solid var(--color-border); padding-top: var(--space-2); }
  .buy-box-mobile-preview { display: grid; gap: var(--space-0); }
  .buy-box-mobile-row { display: grid; gap: var(--space-2); align-items: center; }
  .buy-box-mobile-price-row { grid-template-columns: 1fr; align-items: center; column-gap: var(--space-2); }
  .buy-box-mobile-price-block { display: grid; gap: 4px; align-content: start; }
  .buy-box-mobile-actions-row { grid-template-columns: 1fr 0fr; align-items: center; }
  .buy-box-mobile-open-actions { display: none; }
  .price-discount-line { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); }
  .price-note { color: var(--color-muted); font-size: 0.95rem; font-weight: 400; }
  .variant-mobile-toggle { text-align: left; padding: var(--space-2); border: 1px solid var(--color-primary); border-radius: var(--radius-sm); background: #f9fafb; cursor: pointer; display: grid; gap: 2px; }
  .variant-mobile-toggle:hover { border-color: var(--color-primary); }
  .variant-mobile-label { font-weight: 700; }
  .actions { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
  .cart-feedback { font-weight: 600; }
  .cart-feedback.error { color: #c0392b; }
  .cart-feedback.success { color: #0f5132; }
  .buy-box-meta { display: grid; gap: 6px; }
  .meta-row { display: flex; justify-content: flex-start; align-items: center; gap: var(--space-2); }
  .meta-row-value { display: inline-flex; align-items: center; gap: var(--space-2); }
  .meta-row-note { margin: -2px 0 0; color: var(--color-muted); font-size: 0.9rem; }
  .config-measures { display: grid; gap: 6px; border: 1px dashed var(--color-border); border-radius: var(--radius-sm); padding: var(--space-2); background: #f8fafc; }
  .config-measures-title { margin: 0; font-weight: 700; font-size: 0.95rem; }
  .config-measures-list { margin: 0; display: grid; gap: 4px; }
  .config-measures-row { display: flex; justify-content: space-between; gap: var(--space-2); font-size: 0.9rem; }
  .config-measures-row dt { font-weight: 600; margin: 0; }
  .config-measures-row dd { margin: 0; color: var(--color-muted); }
  .config-custom-label { display: grid; gap: 6px; padding: var(--space-2); border-radius: var(--radius-sm); border: 1px solid var(--color-border); background: #f9fafb; }
  .config-custom-label label { font-weight: 600; }
  .config-custom-label textarea { resize: vertical; min-height: 3.5rem; }
  .config-custom-label-actions { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
  .config-custom-label-status { font-size: 0.9rem; color: var(--color-muted); }
  .shipping-note { color: var(--color-muted); }
  .shipping-note a { text-decoration: underline; }
  .shipping-overlay { position: fixed; inset: 0; z-index: 2200; display: none; align-items: center; justify-content: center; padding: var(--space-3); }
  .shipping-overlay.is-open { display: flex; }
  .shipping-overlay-backdrop { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.62); }
  .shipping-overlay-dialog { position: relative; z-index: 1; width: min(560px, 100%); border-radius: var(--radius-md); border: 1px solid var(--color-border); background: #fff; padding: var(--space-3); box-shadow: 0 18px 40px rgba(15, 23, 42, 0.32); display: grid; gap: var(--space-2); }
  .shipping-overlay-title { margin: 0; font-size: 1.2rem; }
  .shipping-overlay-cost { margin: 0; font-size: 1.05rem; font-weight: 700; }
  .shipping-overlay-note { margin: 0; color: var(--color-muted); line-height: 1.45; }
  .shipping-overlay-actions { display: flex; justify-content: flex-end; gap: var(--space-2); flex-wrap: wrap; }
  .btn { border-radius: var(--radius-sm); padding: 12px 16px; border: 1px solid var(--color-border); cursor: pointer; font-weight: 700; display: inline-flex; align-items: center; gap: 8px; text-decoration: none; }
  .btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
  .btn-secondary { background: #fff; color: var(--color-dark); }
  .btn-ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }

  .variant-group { display: grid; gap: var(--space-2); }
  .variant-group-header { display: flex; justify-content: space-between; align-items: center; }
  .variant-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--space-2); }
  .variant-option { border: 2px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-2); background: linear-gradient(135deg, #fff, #fafafa); display: grid; gap: 6px; align-content: start; cursor: pointer; transition: box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease; }
  .variant-option input { display: none; }
  .variant-option strong { font-size: 1rem; }
  .variant-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; background: #eef2ff; color: #3730a3; font-weight: 700; font-size: 0.9rem; }
  .variant-price-tag { color: var(--color-muted); font-weight: 600; }
  .variant-option[aria-checked="true"] { border-color: var(--color-primary); box-shadow: 0 10px 26px rgba(0,0,0,0.08); background: linear-gradient(135deg, rgba(0,102,174,0.08), #fff); }
  .variant-option[aria-checked="true"] .variant-chip { background: rgba(0, 102, 174, 0.12); color: var(--color-primary); }

  .quantity { display: inline-flex; align-items: center; gap: 8px; }
  .quantity input { width: 74px; padding: 10px; border-radius: var(--radius-sm); border: 1px solid var(--color-border); text-align: center; }
  .buy-box-mobile-bar .quantity { display: grid; grid-template-columns: auto 1fr 1fr; align-items: center; gap: var(--space-2); width: 100%; }
  .buy-box-mobile-bar .quantity input { width: 60px; max-width: 60px; border-color: #000; }
  .buy-box-mobile-bar .btn { justify-content: center; width: 100%; }
  .buy-box-mobile-shipping { text-decoration: underline; }

  .tabs { display: grid; gap: var(--space-2); }
  .tab-buttons { display: flex; gap: 8px; overflow-x: auto; border-bottom: 1px solid var(--color-border); padding-bottom: 6px; }
  .tab-buttons button { border: 1px solid var(--color-border); background: #fff; padding: 8px 12px; border-radius: 8px 8px 0 0; cursor: pointer; color: var(--color-dark); }
  .tab-buttons button[aria-selected="true"] { background: #fff; border-color: var(--color-primary); color: var(--color-primary); font-weight: 700; }
  .tab-panel { display: none; }
  .tab-panel.active { display: block; }

  .recommendations { display: grid; gap: var(--space-2); }
  .recommendation-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(240px, 1fr); gap: var(--space-3); overflow-x: auto; padding-bottom: 8px; }
  .recommendation-card { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-2); background: #fff; box-shadow: var(--shadow-md); }

  @media (max-width: 720px) {
    .actions { flex-direction: column; align-items: stretch; }
    .quantity { width: 100%; }
    .quantity input { width: 100%; }
    .product-page { padding-bottom: 220px; }
    .buy-box-wrapper { position: static; }
    .buy-box { position: fixed; inset: auto 0 0 0; border-radius: 24px 24px 0 0; box-shadow: 0 -10px 30px rgba(0,0,0,0.12); padding: var(--space-1) var(--space-2) var(--space-1) var(--space-2); background: #fff; border: 1px solid var(--color-border); max-height: 80vh; overflow: hidden; }
    .buy-box-body { display: none; overflow-y: auto; max-height: calc(80vh - 120px); padding-top: var(--space-2); border-top: 1px solid var(--color-border); margin-top: var(--space-2); }
    .buy-box.is-open .buy-box-body { display: grid; }
    .buy-box-mobile-bar { display: grid; grid-template-columns: 1fr; }
    .buy-box-mobile-bar .quantity { width: auto; }
    .buy-box.is-open .buy-box-mobile-preview { display: none; }
    .buy-box.is-open .buy-box-mobile-open-actions { display: grid; }
  }

  @media (max-width: 900px) {
    .product-layout { grid-template-columns: 1fr; }
    .hero-media { order: 1; }
    .product-info { order: 2; }
  }

.configurator-title { margin-top: 0; }
.recommendations-label { margin: 0; text-transform: uppercase; font-weight: 700; letter-spacing: 0.08em; font-size: 0.85rem; }
.recommendations-title { margin: 0; }