Designed the mobile experience for Coca-Cola's America 250 campaign, celebrating 250 years of American culture through interactive storytelling, sweepstakes, and collectible state-themed experiences. The site blended Coca-Cola's iconic brand identity with patriotic visual motifs, creating an engaging promotional platform that encouraged repeat visits through quizzes, instant-win games, and prize opportunities. I led the UX and UI design, crafting a cohesive mobile-first experience that balanced campaign storytelling, gamification, and conversion.