GoalCircle

Introduction

GoalCircle is a mobile-first social application designed to enhance the experience of fans during the FIFA World Cup 2026. It allows users to capture and share their live emotions, reactions, and memories during World Cup matches, creating unforgettable memories with friends and communities.

System Overview

GoalCircle is a social platform that enables users to engage with World Cup events in real-time. It offers features such as capturing reactions to major match events, creating private friend circles for shared experiences, and utilizing AI to enhance content creation and sharing. The application is built with a focus on premium design and seamless user interaction.

Functional Requirements

• As a User, I should be able to receive notifications for major match events like goals, red cards, penalties, VAR decisions, and match winners.
• As a User, I should be able to record a voice reaction during a match event.
• As a User, I should be able to take a selfie during a match event.
• As a User, I should be able to record a short video during a match event.
• As a User, I should be able to add text reactions during a match event.
• As a User, I should be able to react with emojis during a match event.
• As a User, I should be able to create invite-only groups to watch matches together virtually.
• As a User, I should be able to share reactions only with close friends in my group.
• As a User, I should be able to view a group timeline of every captured moment.
• As a User, I should be able to access a dedicated FIFA World Cup 2026 mode.
• As a User, I should be able to view live match schedules and scores.
• As a User, I should be able to see match countdowns.
• As a User, I should be able to access team pages and country support badges.
• As a User, I should be able to participate in prediction contests.
• As a User, I should receive AI-generated match summaries.
• As a User, I should receive AI-generated memory reels after every match.
• As a User, I should see AI highlights built from friend reactions.
• As a User, I should receive AI captions for social sharing.
• As a User, I should receive a notification to capture my reaction within 30 seconds when a goal is scored.
• As a User, I should be able to generate a "World Cup Memory Reel" using all captured reactions, photos, voice notes, and videos after the match ends.

User Personas

• General User: Engages with the app to capture and share World Cup moments, participate in prediction contests, and view match information.
• Friend Circle Member: Participates in private groups to share reactions and experiences with close friends during matches.

Core User Flows

• User receives a notification for a major match event -> User captures a reaction (voice, selfie, video, text, emoji) -> Reaction is shared with friend circle -> Group timeline is updated.
• User creates a private friend circle -> Invites friends to join -> Watches match together virtually -> Shares reactions within the group.
• User accesses FIFA World Cup 2026 mode -> Views live match schedule and scores -> Participates in prediction contests -> Receives AI-generated content post-match.

Visuals Colors and Theme

• primary: #1E3A8A (Deep Blue)
• primary_light: #3B82F6 (Light Blue)
• secondary: #F59E0B (Amber)
• accent: #EF4444 (Red)
• highlight: #FBBF24 (Gold)
• bg: #111827 (Dark Gray)
• surface: rgba(17, 24, 39, 0.8)
• text: #F9FAFB (White)
• text_muted: #9CA3AF (Gray)
• border: rgba(229, 231, 235, 0.2)

Signature Design Concept

The GoalCircle app will feature a dynamic "Stadium Experience" homepage. As users open the app, they will be greeted by a 3D interactive stadium environment using @react-three/fiber. The stadium will be filled with animated crowd reactions that change based on live match events. Users can click on different sections of the stadium to view live scores, match schedules, and friend reactions. The app will use gsap for smooth transitions and animations, creating an immersive experience that feels like being in a real stadium.

Interaction Model & Motion Direction

The landing page will use a "parallax" interaction model, providing a layered depth experience as users scroll through the app. Decorative elements like animated crowd reactions and stadium lights will move at different speeds, enhancing the immersive feel. Internal pages will maintain a "static" model for clarity and ease of use, focusing on content delivery and user interaction.

Non-Functional Requirements

• The application must support real-time notifications for match events.
• The system should handle high traffic during peak match times without performance degradation.
• The app must ensure data privacy and secure access control for private friend circles.

Tech Stack

• Frontend: Next.js
• Backend: Supabase
• Database: PostgreSQL
• Real-time Communication: WebSockets
• Notifications: Push Notifications
• External API: Football API for live World Cup events

Assumptions and Constraints

• The application will be primarily used during the FIFA World Cup 2026.
• Users will have access to stable internet connections for real-time updates.
• The app will be available on mobile platforms with a focus on iOS and Android devices.

Glossary

• AI-generated content: Content created using artificial intelligence, such as match summaries and memory reels.
• Friend Circle: A private group of users who can share reactions and experiences during matches.
• Memory Reel: A compilation of captured reactions, photos, voice notes, and videos from a match.
• Parallax: A design technique where background images move slower than foreground images, creating a sense of depth.