# rajat22uee/careerhorizon architecture

> Architecture diagram of the GitHub repository rajat22uee/careerhorizon, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-06-25). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/rajat22uee/careerhorizon
- Repository: https://github.com/rajat22uee/careerhorizon

## Overview

1. This repository is a **Next.js frontend application** for “Career Horizon.” Its purpose is to present public career information: jobs, internships, HR contacts, and supporting company/about content. There is **no backend service code in this repo**; the app is the presentation layer that would consume data from a local module or an external API.

2. The main architectural boundary is the **App Router under `app/`**. Each folder there is a route segment:
   - `app/page.jsx` → homepage
   - `app/jobs/page.jsx` → jobs listing
   - `app/internships/page.jsx` → internships listing
   - `app/hr/page.jsx` → HR contacts directory
   - `app/about/page.jsx` → about page  
   This makes routing file-driven and keeps each page isolated at the route level.

3. `app/layout.js` defines the **global shell** shared across all routes. This is where the persistent page structure lives: metadata/layout wrapper, navbar, footer, and any app-wide providers or common markup. `app/globals.css` applies global styling across the entire site.

4. The homepage is composed from reusable sections in `components/` such as `HeroSection`, `Intro`, `WhyCH`, `OurTeam`, and `WorkCompo`. This suggests the landing page is a **modular marketing-style page** built from distinct content blocks rather than a single monolithic component.

5. The route pages for jobs, internships, HR, and about likely assemble specialized UI cards:
   - `JobCard.jsx`
   - `InternshipCard.jsx`
   - `HRCard.jsx`
   - `AboutCard.jsx`  
   These components represent the **repeated item/display unit** for each content type, which is the main pattern for the listing pages.

6. `components/Navbar.jsx` and `components/Footer.jsx` are the **shared navigation and site chrome**. They form the primary cross-route user journey: users enter through the homepage, then navigate to jobs/internships/HR/about using the navbar, with the footer providing a consistent terminus and likely secondary links.

7. `components/HR-Explore.jsx` appears to be a **route-specific exploratory or CTA section** for the HR page, while the other components are more generic content blocks. This indicates some routes have their own specialized presentation layer beyond the shared card pattern.

8. `lib/api.js` is the main **data-access boundary** in the frontend. Even though the repo doesn’t include backend code, this file is where data fetching or data shaping would be centralized. From an architecture standpoint, page components should treat it as the source of truth for opportunity/contact data rather than embedding raw data logic in each page.

9. The likely data flow is:
   **route page in `app/` → page-specific UI composition in `components/` → data read/transform via `lib/api.js` → rendered cards/sections**.  
   This separation keeps route logic thin and makes the UI easier to extend with new content types or data sources.

10. The styling stack is standard Next.js CSS-based styling:
   - `app/globals.css` for app-wide styles
   - `postcss.config.mjs` for CSS processing
   - `public/` for static assets such as images/icons  
   The design is therefore mostly driven by CSS and component composition, not a heavy client-side state layer.

11. Tooling and runtime are lightweight and frontend-focused:
   - `next.config.mjs` for framework configuration
   - `eslint.config.mjs` for code quality
   - `jsconfig.json` for import/path resolution
   - `package.json` / lockfile for dependency management  
   This is a standard Next.js project without visible state-management or backend orchestration libraries.

12. For an architecture diagram, the important boundaries are:
   - **User/browser**
   - **Next.js route layer (`app/`)**
   - **Shared component layer (`components/`)**
   - **Data/helper layer (`lib/api.js`)**
   - **Static assets (`public/`)**
   - **External data source/API, if used by `lib/api.js`**  
   The application is essentially a content-driven frontend with route-specific views built from reusable presentational components.

Main entry points: [`app/layout.js`](https://github.com/rajat22uee/careerhorizon/blob/main/app/layout.js) (App Shell), [`app/page.jsx`](https://github.com/rajat22uee/careerhorizon/blob/main/app/page.jsx) (Home), [`lib/api.js`](https://github.com/rajat22uee/careerhorizon/blob/main/lib/api.js) (API), [`app/hr/page.jsx`](https://github.com/rajat22uee/careerhorizon/blob/main/app/hr/page.jsx) (HR)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["Runtime"]
  node_browser(("Browser<br/>client"))
end

subgraph group_routes["App Router"]
  node_app_layout["App Shell<br/>layout<br/>[layout.js]"]
  node_app_home["Home<br/>route page<br/>[page.jsx]"]
  node_app_jobs["Jobs<br/>route page<br/>[page.jsx]"]
  node_app_internships["Internships<br/>route page<br/>[page.jsx]"]
  node_app_hr["HR<br/>route page<br/>[page.jsx]"]
  node_app_about["About<br/>route page<br/>[page.jsx]"]
end

subgraph group_ui["Shared UI"]
  node_navbar["Navbar<br/>site nav<br/>[Navbar.jsx]"]
  node_footer["Footer<br/>[Footer.jsx]"]
  node_hero_section["Hero<br/>homepage section<br/>[HeroSection.jsx]"]
  node_intro["Intro<br/>homepage section<br/>[Intro.jsx]"]
  node_why_ch["Why CH<br/>homepage section<br/>[WhyCH.jsx]"]
  node_our_team["Team<br/>homepage section<br/>[OurTeam.jsx]"]
  node_work_compo["Work<br/>homepage section<br/>[WorkCompo.jsx]"]
  node_job_card["Job Card<br/>listing card<br/>[JobCard.jsx]"]
  node_internship_card["Internship Card<br/>listing card<br/>[InternshipCard.jsx]"]
  node_hr_card["HR Card<br/>listing card<br/>[HRCard.jsx]"]
  node_about_card["About Card<br/>content card<br/>[AboutCard.jsx]"]
  node_hr_explore["HR Explore<br/>hr CTA<br/>[HR-Explore.jsx]"]
end

subgraph group_data["Data Layer"]
  node_api_js[("API<br/>data access<br/>[api.js]")]
  node_external_source[("External Data<br/>api/source")]
end

subgraph group_assets["Assets"]
  node_globals_css["Global CSS<br/>styles<br/>[globals.css]"]
  node_public_assets["Public Assets<br/>static files"]
end

node_browser -->|"opens"| node_app_layout
node_app_layout -->|"includes"| node_navbar
node_app_layout -->|"includes"| node_footer
node_app_layout -->|"styles with"| node_globals_css
node_app_layout -->|"serves"| node_app_home
node_app_layout -->|"serves"| node_app_jobs
node_app_layout -->|"serves"| node_app_internships
node_app_layout -->|"serves"| node_app_hr
node_app_layout -->|"serves"| node_app_about
node_app_home -->|"assembles"| node_hero_section
node_app_home -->|"assembles"| node_intro
node_app_home -->|"assembles"| node_why_ch
node_app_home -->|"assembles"| node_our_team
node_app_home -->|"assembles"| node_work_compo
node_app_jobs -->|"renders"| node_job_card
node_app_internships -->|"renders"| node_internship_card
node_app_hr -->|"renders"| node_hr_card
node_app_hr -->|"adds"| node_hr_explore
node_app_about -->|"renders"| node_about_card
node_app_home -->|"reads"| node_api_js
node_app_jobs -->|"reads"| node_api_js
node_app_internships -->|"reads"| node_api_js
node_app_hr -->|"reads"| node_api_js
node_app_about -->|"reads"| node_api_js
node_api_js -->|"fetches"| node_external_source
node_app_layout -->|"serves"| node_public_assets
node_hero_section -->|"uses"| node_public_assets

click node_app_layout "https://github.com/rajat22uee/careerhorizon/blob/main/app/layout.js"
click node_app_home "https://github.com/rajat22uee/careerhorizon/blob/main/app/page.jsx"
click node_app_jobs "https://github.com/rajat22uee/careerhorizon/blob/main/app/jobs/page.jsx"
click node_app_internships "https://github.com/rajat22uee/careerhorizon/blob/main/app/internships/page.jsx"
click node_app_hr "https://github.com/rajat22uee/careerhorizon/blob/main/app/hr/page.jsx"
click node_app_about "https://github.com/rajat22uee/careerhorizon/blob/main/app/about/page.jsx"
click node_navbar "https://github.com/rajat22uee/careerhorizon/blob/main/components/Navbar.jsx"
click node_footer "https://github.com/rajat22uee/careerhorizon/blob/main/components/Footer.jsx"
click node_hero_section "https://github.com/rajat22uee/careerhorizon/blob/main/components/HeroSection.jsx"
click node_intro "https://github.com/rajat22uee/careerhorizon/blob/main/components/Intro.jsx"
click node_why_ch "https://github.com/rajat22uee/careerhorizon/blob/main/components/WhyCH.jsx"
click node_our_team "https://github.com/rajat22uee/careerhorizon/blob/main/components/OurTeam.jsx"
click node_work_compo "https://github.com/rajat22uee/careerhorizon/blob/main/components/WorkCompo.jsx"
click node_job_card "https://github.com/rajat22uee/careerhorizon/blob/main/components/JobCard.jsx"
click node_internship_card "https://github.com/rajat22uee/careerhorizon/blob/main/components/InternshipCard.jsx"
click node_hr_card "https://github.com/rajat22uee/careerhorizon/blob/main/components/HRCard.jsx"
click node_about_card "https://github.com/rajat22uee/careerhorizon/blob/main/components/AboutCard.jsx"
click node_hr_explore "https://github.com/rajat22uee/careerhorizon/blob/main/components/HR-Explore.jsx"
click node_api_js "https://github.com/rajat22uee/careerhorizon/blob/main/lib/api.js"
click node_globals_css "https://github.com/rajat22uee/careerhorizon/blob/main/app/globals.css"
click node_public_assets "https://github.com/rajat22uee/careerhorizon/tree/main/public"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_browser toneBlue
class node_app_layout,node_app_home,node_app_jobs,node_app_internships,node_app_hr,node_app_about toneAmber
class node_navbar,node_footer,node_hero_section,node_intro,node_why_ch,node_our_team,node_work_compo,node_job_card,node_internship_card,node_hr_card,node_about_card,node_hr_explore toneMint
class node_api_js,node_external_source toneRose
class node_globals_css,node_public_assets toneIndigo
```

## Components

### Runtime

Browser entry and the Next.js application shell

- **Browser**: client · End user viewing the site

### App Router

File-driven route segments under app/

- [App Shell](https://github.com/rajat22uee/careerhorizon/blob/main/app/layout.js): layout · Global wrapper with shared chrome and metadata · `app/layout.js`
- [Home](https://github.com/rajat22uee/careerhorizon/blob/main/app/page.jsx): route page · Homepage route · `app/page.jsx`
- [Jobs](https://github.com/rajat22uee/careerhorizon/blob/main/app/jobs/page.jsx): route page · Jobs listing route · `app/jobs/page.jsx`
- [Internships](https://github.com/rajat22uee/careerhorizon/blob/main/app/internships/page.jsx): route page · Internship listing route · `app/internships/page.jsx`
- [HR](https://github.com/rajat22uee/careerhorizon/blob/main/app/hr/page.jsx): route page · HR contacts route · `app/hr/page.jsx`
- [About](https://github.com/rajat22uee/careerhorizon/blob/main/app/about/page.jsx): route page · About page route · `app/about/page.jsx`

### Shared UI

Reusable components assembled by routes

- [Navbar](https://github.com/rajat22uee/careerhorizon/blob/main/components/Navbar.jsx): site nav · Primary cross-route navigation · `components/Navbar.jsx`
- [Footer](https://github.com/rajat22uee/careerhorizon/blob/main/components/Footer.jsx): site footer · Shared bottom chrome · `components/Footer.jsx`
- [Hero](https://github.com/rajat22uee/careerhorizon/blob/main/components/HeroSection.jsx): homepage section · Homepage hero block · `components/HeroSection.jsx`
- [Intro](https://github.com/rajat22uee/careerhorizon/blob/main/components/Intro.jsx): homepage section · Homepage introductory content · `components/Intro.jsx`
- [Why CH](https://github.com/rajat22uee/careerhorizon/blob/main/components/WhyCH.jsx): homepage section · Homepage value proposition section · `components/WhyCH.jsx`
- [Team](https://github.com/rajat22uee/careerhorizon/blob/main/components/OurTeam.jsx): homepage section · Homepage team section · `components/OurTeam.jsx`
- [Work](https://github.com/rajat22uee/careerhorizon/blob/main/components/WorkCompo.jsx): homepage section · Homepage work or experience section · `components/WorkCompo.jsx`
- [Job Card](https://github.com/rajat22uee/careerhorizon/blob/main/components/JobCard.jsx): listing card · Repeated job item display · `components/JobCard.jsx`
- [Internship Card](https://github.com/rajat22uee/careerhorizon/blob/main/components/InternshipCard.jsx): listing card · Repeated internship item display · `components/InternshipCard.jsx`
- [HR Card](https://github.com/rajat22uee/careerhorizon/blob/main/components/HRCard.jsx): listing card · Repeated HR contact display · `components/HRCard.jsx`
- [About Card](https://github.com/rajat22uee/careerhorizon/blob/main/components/AboutCard.jsx): content card · Repeated about content display · `components/AboutCard.jsx`
- [HR Explore](https://github.com/rajat22uee/careerhorizon/blob/main/components/HR-Explore.jsx): hr CTA · Special HR page exploration or call-to-action section · `components/HR-Explore.jsx`

### Data Layer

Frontend data access and external content source

- [API](https://github.com/rajat22uee/careerhorizon/blob/main/lib/api.js): data access · Central frontend data-fetching or shaping module · `lib/api.js`
- **External Data**: api/source · Remote or local data source consumed through the API layer

### Assets

Static public assets and global styling

- [Global CSS](https://github.com/rajat22uee/careerhorizon/blob/main/app/globals.css): styles · App-wide stylesheet · `app/globals.css`
- [Public Assets](https://github.com/rajat22uee/careerhorizon/tree/main/public): static files · Static images and icons served by Next.js · `public`

## Connections

- Browser → App Shell: opens · The browser requests the application shell
- App Shell → Navbar: includes · Shared navigation is mounted in the shell
- App Shell → Footer: includes · Shared footer is mounted in the shell
- App Shell → Global CSS: styles with · Global stylesheet applies site-wide
- App Shell → Home: serves · Shell wraps the homepage route
- App Shell → Jobs: serves · Shell wraps the jobs route
- App Shell → Internships: serves · Shell wraps the internships route
- App Shell → HR: serves · Shell wraps the HR route
- App Shell → About: serves · Shell wraps the about route
- Home → Hero: assembles · Homepage is composed from landing sections
- Home → Intro: assembles · Homepage is composed from landing sections
- Home → Why CH: assembles · Homepage is composed from landing sections
- Home → Team: assembles · Homepage is composed from landing sections
- Home → Work: assembles · Homepage is composed from landing sections
- Jobs → Job Card: renders · Jobs page repeats job cards for each listing
- Internships → Internship Card: renders · Internships page repeats internship cards
- HR → HR Card: renders · HR page repeats contact cards
- HR → HR Explore: adds · HR page includes a specialized exploratory section
- About → About Card: renders · About page uses about content cards
- Home → API: reads · Home page may source or shape content through the data layer
- Jobs → API: reads · Jobs listings are sourced through the data layer
- Internships → API: reads · Internship listings are sourced through the data layer
- HR → API: reads · HR contacts are sourced through the data layer
- About → API: reads · About content can be sourced through the data layer
- API → External Data: fetches · Data access boundary talks to the underlying source
- App Shell → Public Assets: serves · Static files are available to the app shell and routes
- Hero → Public Assets: uses · Homepage sections may reference static imagery or icons