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Review Summary
I am requesting changes because there is one functional issue that can lead to incorrect behavior in the UI. In src/App.jsx you render <Navigation /> directly, and in src/components/Header/Header.jsx you also render <Navigation /> inside the header, so the navigation menu will appear twice on the page; this conflicts with the expected layout and can break visual/tests behavior. To fix this, choose a single place where navigation should live (usually inside Header) and then: 1) remove the extra import Navigation from './components/Navigation/Navigation'; from App.jsx, and 2) remove the extra <Navigation /> JSX from App.jsx (or alternatively remove it from Header.jsx if the design requires it in App only). All other main requirements look correctly implemented: components are split into their own folders, each with its own CSS, and default exports are used consistently. After you fix the duplicated navigation, run npm test and verify visually that the navigation bar appears only once, then your solution should be in good shape. Overall, nice job on the component decomposition and CSS structure—this is a small but important layout fix to complete the task properly.
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mateacademy-ai-mentor
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Review Summary
I am approving your solution because the core task requirements are clearly met and there are no critical functional issues in your React code. You have correctly decomposed the app into Header, Article, Welcome, and Navigation components, each in its own folder with its own CSS file, and you use export default consistently as required. The navigation is rendered only inside Header, so there is no duplicated menu in App.jsx, and the JSX structure in all components is valid. The CSS files for Header, Navigation, Article, and Welcome are syntactically correct and aligned with the described behavior (e.g., sticky header, full-height welcome section, navigation link states).
The only technical problem surfaced in CI is an npm install failure due to a platform-specific dependency (@rollup/rollup-win32-x64-msvc), which is an environment/lockfile issue rather than a bug in your implementation, so it should not block your progress. As a next step, consider adjusting your CI to run npm ci --no-optional or regenerating package-lock.json on a Linux environment so the tests can actually execute, and then verify everything with npm test locally. Overall, your structure, exports, and separation of concerns look solid—nice work.
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