How it works:
Tap Tempo - Improved algorithm filters outliers, auto-starts on 4th tap
Manual BPM - Use slider for exact tempo (60-200 BPM)
Beat-Synced Gestures - Buttons pulse and glow on each beat
Active Highlighting - Highlight shows which gesture is syncing
Auto-Start - Rhythm visualization starts automatically on detection

Technical improvements:
Outlier filtering: Removes bad taps using median deviation
Rolling window: Uses last 8 taps for accuracy
Visual feedback: Button transforms, gradient reversal, beat pulse animation
Continuous updates: BPM recalculates on every tap (not just at 4)
Auto-clear: Old taps removed after 12 to keep detection fresh