✓ 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
Slider is inverted (min=0 at rendered "Luft/air" top, max=100 at "Wasser/water" bottom, but the CSS rotation combined with standard horizontal range semantics means the thumb starts visually at the bottom/"water" end and moves up to "air" — direction is effectively backwards relative to spec); otherwise physics, visuals, and Heureka sequence are all well-executed.
12,779 output tokens · claude-opus-4-6 · end_turn
Slider is inverted (min=0 at rendered "Luft/air" top, max=100 at "Wasser/water" bottom, but the CSS rotation combined with standard horizontal range semantics means the thumb starts visually at the bottom/"water" end and moves up to "air" — direction is effectively backwards relative to spec); otherwise physics, visuals, and Heureka sequence are all well-executed.