topaz-start System Requirements Document

1. Introduction

The purpose of this document is to outline the system requirements for the project "topaz-start," which aims to develop a simple single-page calculator design. This document will serve as a guide for the development team to ensure that all necessary features and functionalities are implemented according to the user's specifications.

2. System Overview

The "topaz-start" project is focused on creating a user-friendly, single-page calculator application. The application will be designed to perform basic arithmetic operations and provide a clean, intuitive interface for users.

3. Functional Requirements as Story Points

• As a User, I should be able to perform basic arithmetic operations such as addition, subtraction, multiplication, and division.
• As a User, I should be able to clear the current input or result to start a new calculation.
• As a User, I should be able to view the current input and result on the calculator display.
• As a User, I should be able to use a decimal point for fractional calculations.
• As a User, I should be able to use the calculator on both desktop and mobile devices.

4. User Personas

• User: A general user who needs to perform basic arithmetic calculations quickly and efficiently.

5. Core User Flows

• User opens the calculator application -> User inputs numbers and selects an operation -> User views the result on the display -> User clears the input for a new calculation.

6. Visuals Colors and Theme

• primary: #3498db (a calming blue for the main interface)
• primary_light: #85c1e9 (a lighter blue for hover states)
• secondary: #2ecc71 (a green for secondary actions)
• accent: #e74c3c (a red for error states and clear button)
• highlight: #f1c40f (a yellow for active indicators)
• bg: #ecf0f1 (a light grey for the background)
• surface: #ffffff (white for the calculator surface)
• text: #2c3e50 (a dark grey for primary text)
• text_muted: #95a5a6 (a softer grey for secondary text)
• border: #bdc3c7 (a subtle grey for borders)

7. Signature Design Concept

The calculator will feature an interactive "flip" animation for each button press, providing a tactile feedback experience. When a user clicks a button, it will appear to flip over, revealing a subtle shadow beneath, enhancing the 3D effect. This will be achieved using motion/react for smooth transitions. The landing page will have a minimalist design with a focus on usability and clarity.

LANDING HERO MOTION BRIEF

The landing hero will feature a continuously moving animation where numbers and symbols gently float into place, forming the calculator interface. This will create a dynamic and engaging first impression. The animation will loop every 10 seconds, with numbers and symbols rearranging themselves to highlight the calculator's functionality. The animation will pause when the user interacts with the calculator, ensuring focus on the task at hand.

8. Interaction Model & Motion Direction

• Interaction Model: Animated
  • The calculator will feature smooth button animations and hover effects to enhance user interaction.
  • The landing page will have moderate scroll-triggered reveals and hover transitions to maintain a polished look.

9. Non-Functional Requirements

• The application must load quickly and perform calculations without noticeable delay.
• The design must be responsive and accessible on both desktop and mobile devices.
• The application must handle invalid inputs gracefully, providing clear error messages.

10. Tech Stack

• Frontend: React for Web
• Backend: None required for a simple calculator
• Database: None required for a simple calculator

11. Assumptions and Constraints

• The calculator will only perform basic arithmetic operations.
• The application will be a single-page design with no backend integration.
• The design will prioritize simplicity and ease of use.

12. Glossary

• Arithmetic Operations: Basic mathematical operations including addition, subtraction, multiplication, and division.
• Responsive Design: An approach to web design that makes web pages render well on a variety of devices and window or screen sizes.
• Interactive Animation: Visual effects that respond to user actions, enhancing the user experience.