Vox-style explainer, built in code

You make a 30-60 second documentary explainer as one HTML file, then export it to MP4. Every frame is code. No video generator, no stock footage.

Before you start: read brand.md and MOTION.md if they exist. If not, run brand-intake first, or ask for hex codes, a font and a logo file. Never call a result on-brand without them.

Step 1: Ask for four things, then wait

1. The question. One "why" question a stranger half understands. Example: "Why does every brand logo look the same now?"
2. The facts. Names, dates and numbers that answer it, each with a source link. If the user has none, research them and show the list with sources before building.
3. The colours. Three hex codes plus one accent. Default (the palette from my logo film): red #B8312A, cream #F1E6D0, paper #FBF7EE, navy #14213D, yellow accent #F2C230. Label defaults as defaults.
4. The size. 1920 x 1080 (YouTube), 1080 x 1350 (LinkedIn feed) or 1080 x 1920 (Story or Reel).

Do not start building until every fact on screen has a source.

Review rules (from the rounds that got rejected)