/* ─── Product Grid ─── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
}

/* Card */
.product-card {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ─── Imagen ─── */
.product-card__media {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-sand);
}

.product-card__img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity var(--dur-slow) var(--ease),
              transform var(--dur-xslow) var(--ease);
}

/* Imagen limpia (default) */
.product-card__img--clean {
  opacity: 1;
  z-index: 1;
}

/* Imagen con modelo (hover) */
.product-card__img--model {
  opacity: 0;
  z-index: 2;
  transform: scale(1.03);
}

.product-card:hover .product-card__img--clean { opacity: 0; }
.product-card:hover .product-card__img--model  {
  opacity: 1;
  transform: scale(1);
}

/* ─── Badge (Nuevo, Agotado, etc.) ─── */
.product-card__badge {
  position: absolute;
  top: 1rem; left: 1rem;
  z-index: 3;
  font-family: var(--font-sans);
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  background: var(--color-black);
  color: var(--color-bone);
}
.product-card__badge--sale {
  background: var(--color-dark-grey);
}

/* ─── Quick Add (CTA en hover) ─── */
.product-card__quick-add {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 4;
  padding: 1rem;
  background: var(--color-bone);
  border-top: 1px solid var(--border);
  transform: translateY(100%);
  transition: transform var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.product-card:hover .product-card__quick-add { transform: translateY(0); }

.product-card__sizes {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.size-btn {
  font-family: var(--font-sans);
  font-size: var(--size-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  cursor: none;
  transition: background var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}
.size-btn:hover,
.size-btn.is-selected {
  background: var(--color-black);
  color: var(--color-bone);
  border-color: var(--color-black);
}
.size-btn:disabled {
  opacity: 0.3;
  text-decoration: line-through;
  pointer-events: none;
}

.product-card__add-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--color-black);
  color: var(--color-bone);
  font-family: var(--font-sans);
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid var(--color-black);
  cursor: none;
  transition: background var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease);
}
.product-card__add-btn:hover {
  background: var(--color-off-black);
}
.product-card__add-btn:disabled {
  background: var(--color-grey);
  border-color: var(--color-grey);
  cursor: not-allowed;
}

/* ─── Info ─── */
.product-card__info {
  padding: 1rem 0.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.product-card__category {
  font-size: var(--size-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.product-card__name {
  font-family: var(--font-serif);
  font-size: var(--size-md);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.3;
}

.product-card__price-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.product-card__price {
  font-size: var(--size-base);
  font-weight: 500;
  color: var(--text-primary);
}

.product-card__price--original {
  font-size: var(--size-sm);
  color: var(--color-grey);
  text-decoration: line-through;
}

.product-card__price--sale { color: var(--color-dark-grey); }

/* ─── Skeleton Loading ─── */
.product-card--skeleton .product-card__media,
.product-card--skeleton .product-card__name,
.product-card--skeleton .product-card__price,
.product-card--skeleton .product-card__category {
  background: linear-gradient(90deg, #e8e8e4 25%, #f0f0ec 50%, #e8e8e4 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s infinite;
  border-radius: 0;
  color: transparent;
  user-select: none;
}
.product-card--skeleton .product-card__name  { height: 1.25rem; width: 75%; }
.product-card--skeleton .product-card__price { height: 1rem; width: 40%; }
.product-card--skeleton .product-card__category { height: 0.75rem; width: 50%; }

@keyframes skeleton-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ─── Responsive ─── */
@media (max-width: 1200px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 1px; }
  .product-card__quick-add { display: none; }
  .product-card__info { padding: 0.85rem 0.5rem; text-align: center; align-items: center; }
  .product-card__price-row { justify-content: center; }
}
@media (max-width: 540px) {
  .product-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
  .product-card__media { aspect-ratio: 4 / 5; }
}