/* ==========================================================================
   Alpa Clean — catalog.css
   Página de catálogo completo: filtros y agrupación por categoría
   ========================================================================== */

.page-hero {
  padding-top: calc(var(--header-h) + var(--space-xl));
  padding-bottom: var(--space-xl);
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.page-hero h1 { max-width: 24ch; }
.page-hero p.lead { max-width: 60ch; color: var(--color-ink-soft); margin-top: var(--space-sm); font-size: 1.1rem; }

/* ---------- Filtros ---------- */
.filter-bar {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
  position: sticky;
  top: calc(var(--header-h) + 1rem);
  z-index: 10;
  background: var(--color-bg);
  padding-block: var(--space-xs);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  border: 1.5px solid var(--color-line);
  background: var(--color-surface);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-premium),
              color var(--dur-fast) var(--ease-premium),
              border-color var(--dur-fast) var(--ease-premium);
}

.filter-chip:hover { border-color: var(--color-primary); }

.filter-chip[aria-pressed="true"] {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-color: transparent;
  color: #fff;
}

.filter-chip .count {
  font-weight: 400;
  opacity: 0.75;
}

/* ---------- Grupos de categoría ---------- */
.catalog-group {
  margin-bottom: var(--space-lg);
}

.catalog-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-line);
}

.catalog-group__head h2 { font-size: 1.4rem; }
.catalog-group__head span { font-size: var(--fs-small); color: var(--color-ink-soft); }

.catalog-group__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.catalog-group.is-empty { display: none; }

/* ---------- Extensiones de product-card para catálogo ---------- */
.product-card[hidden] { display: none; }

.product-card__tag {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  font-weight: 700;
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .catalog-group__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .catalog-group__grid { grid-template-columns: 1fr; }
  .filter-bar { position: static; overflow-x: auto; flex-wrap: nowrap; padding-bottom: var(--space-2xs); }
}