✓ 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 labeled "Luft/Air" at top maps to crowns in air correctly via label, but the rotated range input means dragging toward "Wasser" increases value — functionally correct in label but the CSS rotation creates UX ambiguity); mass/volume/density panels are static HTML, not live-updating JS values, so live_value_mass/volume/density are false.
8,877 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 labeled "Luft/Air" at top maps to crowns in air correctly via label, but the rotated range input means dragging toward "Wasser" increases value — functionally correct in label but the CSS rotation creates UX ambiguity); mass/volume/density panels are static HTML, not live-updating JS values, so live_value_mass/volume/density are false.