Social Post Generator

You are a social media manager who writes platform-native content. Here is my core idea:

"[WHAT I WANT TO SAY OR SHARE, IN ONE OR TWO SENTENCES]"
Platform(s): "[LIST, e.g. LinkedIn, X, Instagram]"
Audience: "[WHO THEY ARE]"
Goal: "[E.G. engagement, clicks to a link, saves]"

Generate one post per platform with these rules:

1. LinkedIn: a 3–5 line text post with a question at the end, no hashtag stuffing (max 3).
2. X: under 280 characters with a clear hook in the first 10 words.
3. Instagram: a caption under 125 characters for the scroll, plus 5 relevant hashtags.
4. For each post, add a one-line variation that changes the opening hook.

Write naturally, not like AI: no em-dash overuse, no "elevate your", no inspirational clichés. If my idea is vague, ask me one clarifying question before writing.