jakedibattista/ADK-MarketingBot ? reverse-engineered prompt

Build me a full marketing campaign app that takes a company name, website, goals, and target audience, then uses AI agents to research the business, come up with a couple of campaign ideas, create a visual concept, write a short cinematic video script, and generate a marketing video I can download.

I want a simple web app where someone can sign in with Google, submit a brief, and watch the whole workflow happen from research to final output. The app should show the campaign ideas, the image concept with a caption, the script, and the finished video in a clean step by step flow, with good loading states and clear error messages if anything fails.

Use a modern frontend and a Python backend, and make the whole thing feel polished and ready to deploy. If you need to look up current docs online while building it, go ahead.