Search Zara products

Searches Zara product listings by keyword within one department section, with real offset-based pagination. Returns products with pricing, images, availability, and every purchasable color variant, plus the search facets. This search is best-effort relevance, not a guaranteed keyword match: for an obscure or nonsense keyword, Zara's own search falls back to a broader recommended result set instead of returning an empty list, and there is no reliable field in the response to distinguish a true keyword match from that fallback behavior. Requesting an offset beyond the available results returns a normal, empty result with is_last_page true rather than an error.