✓ 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 (value=0 maps to crowns in air, value=100 to submerged is correct conceptually, but the CSS-rotated horizontal input has no explicit orient="vertical" rendering guarantee cross-browser, and the instructional label reads "↑ Herausziehen — Eintauchen ↓" while physically dragging the rotated thumb upward increases the value, making the interaction confusing/inverted depending on browser rendering; the "rise" data field displays pixel counts rather than meaningful physical units.
13,368 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (value=0 maps to crowns in air, value=100 to submerged is correct conceptually, but the CSS-rotated horizontal input has no explicit orient="vertical" rendering guarantee cross-browser, and the instructional label reads "↑ Herausziehen — Eintauchen ↓" while physically dragging the rotated thumb upward increases the value, making the interaction confusing/inverted depending on browser rendering; the "rise" data field displays pixel counts rather than meaningful physical units.