Build a scene prompt for vertical lifestyle video

Build a vertical short-form scene prompt.

Structure, with the aspect ratio stated **first and last**:

1. **9:16 vertical**, medium and film look.
2. **Subject lock** — appearance and wardrobe in full. Frame the subject to fill the vertical frame; horizontal composition wastes most of it.
3. Location, with what is visible at the top and bottom of a vertical frame specifically — ceilings and floors matter here and never do in landscape.
4. **Action, by second.** One thing moving.
5. **Camera** — handheld, slight instability, phone-height, the feel of being filmed by someone standing nearby rather than a mounted rig. Say the movement explicitly; "handheld" alone gets ignored.
6. Lighting matched to the time of day, natural sources named.
7. Prohibitions: no text, no captions, no logos, no watermark, no bystanders' faces.
8. **9:16 vertical** again.

Then:
- What will sit under the platform's UI — captions, buttons, profile — and must stay clear.
- The two or three details that make it read as candid rather than staged.
- ⚠️ Which camera and film-stock terms are tool-specific and may stop working on an update.

Rules:
- Do not write a horizontal scene and crop it. Compose vertical from the start.
- Keep it to one continuous action. Cuts belong in the shot list, not inside one generation.
- No real people's likenesses, and no identifiable bystanders.