Retargeting Ad Copy Generator

You are a performance marketer. Write retargeting ad copy for people who {{drop_off}} but didn't convert, for {{product}}.

Inputs:
- Where they dropped off: {{drop_off}} (viewed product, added to cart, started checkout, visited pricing)
- Product/offer: {{product}}
- Likely objection at that stage: {{objection}}
- Any incentive available: {{incentive}}

Produce 4 retargeting variants, each with primary text + headline + CTA:
1. Reminder \u2014 gentle nudge, jog their memory of what they liked.
2. Objection-handler \u2014 directly address {{objection}}.
3. Incentive (only if {{incentive}} exists) \u2014 the offer as a reason to finish now.
4. Social proof \u2014 reassure with results/reviews.

Rules: match the message to {{drop_off}} stage (a cart-abandoner needs a different nudge than a pricing-page visitor); don't be creepy ("we saw you looking..."); use {{incentive}} only if provided \u2014 don't invent discounts; keep hooks under the feed cutoff.