/* Regla de Guanaprints: un producto por fila en todos los teléfonos. */
@media (max-width: 767px) {
  html { -webkit-text-size-adjust: 100%; }
  body { font-size: 16px; }
  .grid,
  .categories,
  .product {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 24px !important;
  }
  .grid > *, .categories > *, .product > * { min-width: 0; }
  .card { width: 100%; }
  .card div { padding: 18px; }
  .card img,
  .product img,
  main > img {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
  }
  .card h2 { font-size: 1.25rem; line-height: 1.35; }
  .card p, .card span { font-size: 1rem; line-height: 1.65; }
  .card .hashtags { font-size: .9rem; overflow-wrap: anywhere; }
  .card a.consultar-modelo,
  .card a.cta,
  .product a.button,
  #ficha-producto a.cotizar {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 48px;
    padding: 12px 16px;
    font-size: 1rem;
    line-height: 1.5;
    text-align: center;
    white-space: normal;
  }
  .tools { flex-direction: column; align-items: stretch; }
  .tools input { box-sizing: border-box; width: 100%; max-width: none; }
}