✓ 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 is labeled "Luft/air" at top while HTML layout places it above "Wasser/water" at bottom, but the value-to-position mapping makes 0=crown in air and 1000=crown in water which is actually correct per label, yet the native range slider rendered vertically via CSS rotation maps the thumb to bottom=low value=air, which is inverted UX); mass, volume, and density live values are hardcoded static text rather than dynamically updated DOM elements, and there is no continuous fall animation — the crown teleports via slider.
9,709 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 is labeled "Luft/air" at top while HTML layout places it above "Wasser/water" at bottom, but the value-to-position mapping makes 0=crown in air and 1000=crown in water which is actually correct per label, yet the native range slider rendered vertically via CSS rotation maps the thumb to bottom=low value=air, which is inverted UX); mass, volume, and density live values are hardcoded static text rather than dynamically updated DOM elements, and there is no continuous fall animation — the crown teleports via slider.