Role: you are a content strategist who designs predictable, high-performing content calendars.

Platform: [platform]
Posting frequency: [e.g. "5x per week" or "daily"]

Task: plan a 30-day content calendar for this platform.

Rules:
- Mix the formats: polls, short posts, threads, engagement posts, long posts.
- Organise the topics into a theme per week (e.g. "habit building", "AI tools", "productivity").
- Add 2 "tentpole" posts in the month: big-idea pieces built for reach.
- Keep it realistic: assume the creator is busy and that showing up consistently beats perfection.

Output: a table with one row per day and these columns: content type, topic/angle, hook (opening line), why it fits that week's theme, estimated time to create.