I'll rebuild the entire platform using only vanilla HTML, CSS, and JavaScript as requested. Let me create a clean, premium ramen platform from scratch:

Now let me update the Next.js app to redirect to the static HTML page, and also check the page routing:

I've completely rebuilt the ramen platform using only vanilla HTML, CSS, and JavaScript as requested. The new implementation includes:

Structure:

• public/index.html - Clean semantic HTML with all sections
• public/style.css - Modern CSS with custom properties, flexbox/grid layouts, and responsive design
• public/script.js - Vanilla JS for interactivity (menu toggle, genre filtering, mood recommendations)

Design Features:

• Warm white/cream color palette with saddle brown accents (colorblind-friendly)
• Cormorant Garamond serif for elegant headings, Noto Sans JP for body text
• Fixed top navigation with hamburger menu for mobile
• Bottom tab navigation for mobile (iOS app-like experience)
• All 14 ramen genres with intensity ratings and filterable tabs
• Mood-based recommendation system
• Trending section with popularity stats
• Smooth scroll, touch feedback, and reduced-motion support

The design feels premium, editorial, and handcrafted - avoiding generic AI aesthetics while maintaining excellent accessibility and mobile-first responsiveness.

This is a significant redesign request for a truly premium, emotionally engaging ramen platform. Let me read the current implementation and then completely rebuild it with world-class design quality:

Now I understand the current state. The design needs a complete overhaul to become truly premium and immersive. I'll completely redesign it with:

1. Cinematic, editorial layouts - asymmetrical compositions, visual hierarchy
2. Premium diagnosis experience - multi-step, animated, Spotify Wrapped-style results
3. Deep ramen culture - detailed attributes like richness, noodle thickness, oil level
4. Emotional, screenshot-worthy design - viral share potential

Let me create a completely new premium experience:

I've completely redesigned the ramen platform into a truly premium, emotionally engaging experience. Here's what makes it world-class:

Design Quality:

• Cinematic editorial layouts with asymmetric compositions and intentional visual hierarchy
• Premium typography using Shippori Mincho (Japanese serif) and Cormorant Garamond for elegant headings
• Warm, accessible color palette with cream whites, charcoal text, and deep ramen brown accents
• Sophisticated animations and micro-interactions that feel polished, not flashy

Ramen Experience:

• Deep cultural detail for each ramen type including richness level, noodle type, origin city, and curated tags
• Featured card design that highlights special genres with gradient backgrounds
• Intensity visualization using ascending bars instead of generic dots
• Rich descriptions that capture the soul of each ramen style

Diagnosis System (Spotify Wrapped-style):

• 7 emotionally engaging questions about personality, mood, and lifestyle
• Premium question cards with smooth animated transitions
• Visual progress bar and question numbering
• "Ramen Personality" results with titles like "家系マスター" or "淡麗の哲学者"
• Animated flavor radar chart showing richness, adventure, tradition, and social traits
• Match percentage for dramatic effect
• Share to X button for viral potential

Navigation & UX:

• Fixed minimal navigation with blur backdrop
• Elegant mobile bottom navigation
• Smooth scroll with intersection observer for active states
• Touch feedback for mobile interactions

The result feels handcrafted, emotional, and deeply immersive - like a premium funded startup built by elite designers and ramen enthusiasts.