✓ 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 direction is inverted (min=0 at top maps to air, but the vertical writing-mode bt-lr means dragging up increases value toward water, which is semantically backward from the label layout); all core physics, live values, heureka, and ASCII art features are present and correct.
8,537 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at top maps to air, but the vertical writing-mode bt-lr means dragging up increases value toward water, which is semantically backward from the label layout); all core physics, live values, heureka, and ASCII art features are present and correct.