✓ 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 (thumb starts at top/y=150 → sliderValue=0 = crowns in air, dragging down increases value → crowns enter water, which is actually correct directionally, but the thumb initializes at top meaning crowns start in air — however the slider is a custom SVG drag element with no true range input, and there is no automated fall animation; crowns only move when the user drags, not with any autonomous falling motion.
11,727 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (thumb starts at top/y=150 → sliderValue=0 = crowns in air, dragging down increases value → crowns enter water, which is actually correct directionally, but the thumb initializes at top meaning crowns start in air — however the slider is a custom SVG drag element with no true range input, and there is no automated fall animation; crowns only move when the user drags, not with any autonomous falling motion.