arctic-start

As a frontend developer, implement the CalculatorDisplay section for the Calculator page. This section features a digital display area, number buttons (0-9), operation buttons (+, -, ×, ÷), an equals button, and a clear button. The component must manage the complete calculator state, including current input, result, operation, and operand. Implement interactive features such as spring physics hover effects, press-down feedback, and smooth result transitions. Acceptance criteria: The CalculatorDisplay component must render exactly once on the Calculator page, with all buttons and display elements functioning as described. The design must match the provided CSS, including animations and responsive layout. The component must handle all arithmetic operations and state management without backend integration. It must be accessible to all users. Page access: shared by all personas (User). This is verification context and does not request role-specific implementation.

As a frontend developer, implement the Footer section for the Calculator page. This section provides a shared footer shell with brand information, project links, and legal content. The Footer should conclude the page consistently with a responsive design. Acceptance criteria: The Footer component must render exactly once on the Calculator page, with brand and legal content displayed as specified. The design must match the provided CSS, including responsive behavior. The Footer should not require backend integration and must be accessible to all users. Page access: shared by all personas (User). This is verification context and does not request role-specific implementation.