graph TD A[User Input] --> B[InputStyleBuilder] B --> |event_spec_and_style.json| C[SloganMaker] B --> |event_spec_and_style.json| D[VisualsDesigner] B --> |event_spec_and_style.json| E[VideoProducer] C --> |slogans.txt| F[PackagerAndManifest] D --> |poster_flyer.png| F D --> |instagram_story.png| F D --> |facebook_banner.png| F D --> |youtube_thumbnail.png| F D --> |visuals_summary.txt| F E --> |video_script.txt| E1[Voice-Over] E1 --> |voiceover.mp3| E2[Transcription] E2 --> |timed_transcript.txt| E3[Video Generation] E3 --> |promo_video.mp4| F E --> |video_summary.txt| F F --> G[event-promo-package.zip] G --> H[Download URL]