- Log water intake using small, medium, and large preset sizes.
- Input custom water volumes for precise tracking.
- Vertical progress indicator with animated wave effects showing fill ratio.
- Set and modify daily hydration goals in milliliters.
- Daily streak counter for consecutive days meeting the goal.
- Weekly history view showing completion status for the last 7 days.
- Haptic feedback when recording new hydration logs.
- Light mode interface with an ice-blue color scheme.
- Local data storage for hydration logs and goal settings.