Count Down and Up

Core Functionality SwiftData for local data persistence Structured for future iCloud sync Light/Dark mode support with custom color schemes Hierarchical time calculation (years, quarters, months, weeks, days, hours, minutes, seconds) Dynamic countdown/countup display Add, edit, and delete events Event cards with color-coded backgrounds (red for past, green for future) Optional target date display Adjustable font size Chronological/reverse chronological sorting OS-specific interactions (swipe actions on iOS, context menus on macOS) User Settings (Persisted) Font size (12-32pt range) Sort order (chronological/reverse chronological) Show dates preference (applies to all events) Event Properties Description (max 100 characters) Date (required) Time (optional) Display units (year, quarter, month, week, day, hour, minute, second) Show target date toggle Platform-Specific Notes iOS Swipe actions available on event cards Touch-optimized controls macOS Context menu on right-click Keyboard shortcuts supported Optimized for larger screens