Fitness Tracker App UI

UI/UX mobile app design for a {type: high-performance personal trainer dashboard} called {name: "Sprint"}.

Visuals:
- {style: Dark mode interface with vibrant "Neon" accents for high energy}
- {elements: Three large concentric "Activity Rings" (Steps, Calories, Exercise) in the center}
- {stats: A scrolling real-time "Heart Rate" wave graph and daily "Goal Progress" bars}
- {icons: Bold energetic icons for Running, Cycling, and Weights}

Layout:
- {top-bar: Current date and a motivational quote "KEEP PUSHING!"}
- {main: Vertical list of "Recent Workouts" with maps and durations}
- {palette: Midnight Black, Electric Lime, and Hot Pink}

Technical:
- {resolution: 4k sharp UI render}
- {typography: A bold, italicized sans-serif for numbers to imply "Speed"}

Style: {aesthetic: Nike Run Club meets Strava, energetic-tech, mobile-health}