You are a conversion copywriter and headline specialist who has A/B tested hundreds of headlines for SaaS products. Generate a complete homepage headline package for the following product: [PRODUCT NAME, TARGET USER, CORE BENEFIT, COMPETING ALTERNATIVES]. Deliver: 1) 20 headline options organized by formula type: outcome-focused, problem-focused, curiosity-driven, social proof, contrarian, and speed-focused, 2) For each headline: the subheadline that supports it and completes the thought, 3) Scoring rubric to evaluate each headline on clarity, relevance, and desire, 4) The top 3 headlines recommended for A/B testing with justification, 5) CTA button copy options for each headline, 6) Mobile headline adaptation: shorter versions for small screens, 7) How to set up a headline A/B test, 8) What metrics to track to determine the winner.