✓ Two crowns ✓ Same mass, different density ✓ Vertical slider ✓ Slider works ✓ Slider controls crowns ✓ Slider direction correct ✓ Full slider range ✓ Fall animation ✓ Water displacement ✓ Rising water level ✓ Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water ✓ Gilded displaces more ✓ Heureka animation ✓ No external deps ✓ Light bg / dark text ✓ Self-contained HTML
All required features are implemented correctly; the pixel-based water-rise indicator on the canvas is a minor visual inconsistency (mixes physical units with screen pixels), and mass/density/volume values in the data panels are static (not updated by the slider) except for displaced volume and water rise.
8,512 output tokens · claude-opus-4-6 · end_turn
All required features are implemented correctly; the pixel-based water-rise indicator on the canvas is a minor visual inconsistency (mixes physical units with screen pixels), and mass/density/volume values in the data panels are static (not updated by the slider) except for displaced volume and water rise.