I refined the existing logo of a fictional B2B event-tech SaaS and built a brand system around it. The seating-row P mark keeps its idea and its violet; four stroke weights become one, three arc centers become one, every gap becomes 5 units and the stage dot moves onto the center. The wordmark keeps its letters, moves from weight 800 to 590 to match the mark and gets even spacing. The system adds primary, secondary and UI colors (all 17 checked pairs pass WCAG AA), type for brand, web and product, three graphic devices, three patterns, a 12-icon style and 19 pages of guidelines organized like a Figma guidelines file, shown here as page images. The existing logo was invented for the demo.