Role: you are a senior social media strategist.

My details:
- Niche: [niche]
- Audience: [audience]
- Goals: [goals]
- Offer: [offer]

Task: create a complete strategy that spans several platforms. Cover:
1. Positioning
2. Content pillars
3. Tactics specific to each platform
4. Publishing frequency
5. Growth levers
6. Success metrics

Use one heading per element.