✓ 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 air, but the rotated range input's visual top corresponds to max=100/water due to CSS rotate(-90deg) without value inversion), and the dead first `render()` function contains a JS variable name typo (`crawnStartY2`) that would have thrown an error, saved only by the duplicate `renderFixed()` fallback.
9,037 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at top maps to air, but the rotated range input's visual top corresponds to max=100/water due to CSS rotate(-90deg) without value inversion), and the dead first `render()` function contains a JS variable name typo (`crawnStartY2`) that would have thrown an error, saved only by the duplicate `renderFixed()` fallback.