graph TD
A[Start: Create Promotional Video] --> B[Gather Initial Inputs]
B --> C1[Short Script Creator]
B --> C2[Music Curator]
C1 --> D1[short-promotional-script]
C2 --> D2[short-bgm-wav-files]
D1 --> E1[B-roll Finder & Editor]
D1 --> E2[Overlay Instruction Generator]
E1 --> F1[trimmed-vertical-broll]
E2 --> F2[text-overlay-plan]
D2 --> G[Base Video Creator]
F2 --> G
G --> H[text-slide-mp4]
H --> I[Final Video Assembler]
F1 --> I
I --> J[final-promotional-short-mp4]
J --> K[End: Complete 10-15s Vertical Video]