emerald-start

As a frontend developer, implement the CalculatorDisplay section for the Calculator page. This section features an interactive calculator interface with a digital display and an animated button grid. It includes a hero tagline, a digital-style display screen showing current input and result, and a responsive grid of number, operation, and control buttons. Buttons should animate with subtle bounce effects on click and hover transitions. The display uses emerald green for primary operations and deep orange for emphasis. Ensure the calculator state is managed correctly, handling number input, operations, and result calculations. Acceptance criteria: The CalculatorDisplay must render exactly once on the Calculator page, manage calculator state, and display current calculations on the digital screen. The design structure must match the provided CSS, including animations and responsive behavior. No backend integration is required for this section. 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 and project legal content. Ensure the footer is styled according to the design, with appropriate spacing and alignment. The footer should conclude every routed page consistently. Acceptance criteria: The Footer must render exactly once on the Calculator page, provide shared project footer content, and match the provided CSS design. No backend integration is required for this section. Page access: shared by all personas (User). This is verification context and does not request role-specific implementation.