I'll create a mobile-first Pi Calculator app designed specifically for the Pi community. This will be a responsive calculator optimized for mobile devices with a clean, modern interface.

I've created a mobile-first Pi Calculator app specifically designed for the Pi community with the following features:

Key Features:

• Mobile-Optimized Design: Large, touch-friendly buttons (h-14) with proper spacing
• Responsive Layout: Works perfectly on all mobile screen sizes
• Pi Community Branding: Orange/amber color scheme matching Pi Network's brand colors

• Full Calculator Functionality:

  • Basic arithmetic operations (+, -, ×, ÷)
  • Clear (C) and Clear Entry (CE) functions
  • Percentage calculations
  • Decimal point support
  • Sign toggle (±)
  • Real-time operation display

Mobile-First Design Elements:

• Touch-Friendly Interface: 56px button height for easy tapping
• Visual Feedback: Active button scaling and hover effects
• Gradient Background: Attractive Pi-themed orange gradient
• Clear Display: Large, high-contrast display with monospace font
• Compact Layout: Fits perfectly on mobile screens
• Community Branding: Pi Network logo and community messaging

Technical Features:

• State Management: Proper calculator logic with operation chaining
• Error Prevention: Handles edge cases like multiple decimals
• Visual Indicators: Shows current operation and previous value
• Responsive Grid: 4-column button layout that adapts to screen size

The app is fully functional and ready for the Pi community to use for their calculations!