I'll help you build the "Hangi Araç" Turkish second-hand car buying advisor app with Vite + React Router v7. This is a substantial multi-page app, so let me set it up properly.

Now I need to convert this from Next.js to Vite + React Router v7. Let me set up the project properly:

Now let me set up Vite, update the CSS with the brand colors, and create all the pages:

Now let me update the globals.css with the brand colors and create the main app files:

Now let me create the Layout component and all the pages:

Now let me read the scroll-area component to ensure it's properly exported:

Good, the ScrollBar is exported. Now I need to remove the 'use client' directive from the components since this is a Vite project (not Next.js). Let me also check for any other Next.js specific imports in the components and update the theme-provider:

Now let me also delete the now-empty app directory and run the dev server:

Wait, there's a layout.tsx recreated. Let me check what happened and move the globals.css to src:

The server is running. Let me check the console for any errors:

I see the issue - the logs show an old Next.js process was running. My Vite server started successfully. Let me check the current server output and browser:

Let me check the port:

Took screenshot

The homepage is looking great! Let me scroll down and check the rest, then test the other pages:

Took screenshot

Excellent! The feature cards and trust signals look great. Let me check the recommendations page:

Took screenshot

The recommendations page looks great! I can see the dismissible disclaimer banner, filter dropdown, and vehicle cards with badges (Güçlü Uyum in green, Mantıklı Seçenek in blue). Let me check the vehicle detail page:

Took full screenshot

The vehicle detail page looks excellent! It has all the requested elements:

• Hero with car image, badge, name, price range, and update date
• Overall score with progress bar and breakdown scores
• Warning cards with severity colors
• Tabs for different content sections
• Action buttons for favorites, compare, and decision summary
• Disclaimer at the bottom

Let me check the comparison and dashboard pages:

Checked comparison page

The comparison page shows the verdict card at the top as requested, with the trophy icon and the winner announcement. Let me scroll to see the comparison table:

Scrolled comparison

The comparison table is excellent! It shows:

• Car headers with thumbnails, names, years, scores, and "Değiştir" (Change) links
• Criteria rows with winner cells highlighted with checkmarks
• Turkish text for all labels

Let me check the dashboard and decision summary pages:

Checked dashboard

The dashboard looks great with:

• Account nudge banner at the top ("Favorilerin kaybolmasın — ücretsiz hesap oluştur")
• 5 tabs as requested
• Empty state with encouraging copy and CTA

Let me check the Favoriler tab which should have some mock data:

Checked favorites tab

The Favorites tab shows the filled state with car cards, badges, scores, and remove buttons. Let me check the Decision Summary page:

Checked decision summary

The Decision Summary page is fully implemented with all sections:

1. Profil Özeti - Profile summary
2. En İyi Öneriler - Top recommendations with scores
3. Araçlardan Uzak Dur - Vehicle types to avoid
4. Tahmini Yıllık Maliyet - Annual cost breakdown table
5. Alım Kontrol Listesi - Checklist with pre-checked items
6. Sorumluluk Uyarısı - Prominent disclaimer (red section)

The page also has:

• Action bar with "Panelime Dön", "Linki Kopyala", and "Yazdır / PDF" buttons
• Share link notice at the top
• Clean print-friendly document layout

Let me also test the mobile view:

Tested mobile view

Mobile view looks great! Let me also check the recommendations page on mobile to verify the responsive grid:

Mobile recommendations done

The mobile view is working perfectly - single column layout, stacked card design with image on top. Let me close the browser and provide a summary:

I've successfully built the "Hangi Araç" Turkish second-hand car buying advisor app with React + TypeScript + Vite + React Router v7 + shadcn/ui + Tailwind CSS. Here's what was created:

Pages Implemented:

1. Homepage (/) - Clean hero with Turkish copy, 3 feature cards, trust signals
2. Recommendations (/oneriler) - Vehicle cards grid with badges, scores, filter/sort, comparison selection, floating comparison bar
3. Vehicle Detail (/arac/:slug) - Hero with image, score breakdown, warning cards, tabbed content (Kimler İçin Uygun, Artılar & Eksiler, Dikkat Notları, Alternatifler), sticky sidebar/mobile bottom bar
4. Comparison (/karsilastir) - Verdict card at top, comparison table with winner highlighting, mobile-friendly stacked layout
5. Dashboard (/panom) - 5 tabs with empty/filled states, account nudge banner, favorites management
6. Decision Summary (/ozet/:slug) - Print-friendly document with numbered sections, cost table, checklist, prominent disclaimer

Design Features:

• Premium, calm design with deep slate-blue (#1E3A5F-based) primary and warm amber accent
• Light/dark mode color tokens configured
• Mobile-first responsive design (tested at 375px)
• Turkish text throughout all UI elements
• Subtle hover animations on cards
• Print styles for decision summary page