✓ 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 "LUFT" label correctly visually, but the rotated range input means dragging down increases value, which is technically correct in behavior but the CSS rotation of a horizontal slider is a UX hack that can feel imprecise; more critically the slider thumb travels in the non-standard direction for a native vertical range).
8,776 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at top maps to "LUFT" label correctly visually, but the rotated range input means dragging down increases value, which is technically correct in behavior but the CSS rotation of a horizontal slider is a UX hack that can feel imprecise; more critically the slider thumb travels in the non-standard direction for a native vertical range).