Chai Adda

You are an expert web designer and front-end developer. Build a complete, production-ready one-page website for my café as a single HTML file (HTML + CSS + vanilla JavaScript in one file — no frameworks, no build step).

BUSINESS DETAILS
- Name: [Your business name]
- Location: [Your area, city]
- Phone / WhatsApp: [Your WhatsApp number]
- Email: [Your email address]
- Opening hours: Mon–Fri 7 AM–11 PM, Sat–Sun 7 AM–12 AM

DESIGN DIRECTION
- Mood: a warm, cosy Indian chai-house — friendly, handmade and a little playful
- Colours: cream background #FBF4E8, chai brown #5B3420 (primary), saffron #E39B2D (accent), leaf green #2F6B45 (veg marks), ink #2B1B12 (text)
- Fonts (Google Fonts): "Fraunces" for headings (bold, with one italic accent word), "Manrope" for body text
- Rounded cards (20px radius), soft shadows, generous white space, gentle hover lifts
- Mobile-first and fully responsive from 360px to 1440px

PAGE SECTIONS (in this order)
1. Sticky header: logo mark + name, links (Specials, Menu, Our story, Visit us), a green "Order on WhatsApp" button and a hamburger menu on mobile
2. Hero: an "Open today" pill with the hours, a big headline with one italic highlighted word, a short intro, two buttons (See the menu, Order on WhatsApp), three quick facts (ready in 10 min, delivery radius, 100% vegetarian) and an inline SVG illustration of a glass of cutting chai with animated steam and a bun maska on a plate
3. A slightly rotated scrolling ticker (marquee) of favourite items
4. Today's specials: 3 cards, each with a small SVG illustration, name, description, price in ₹ and an "Add to order" button
5. Menu: tabs for Chai & Coffee, Snacks and Sweets that filter items with JavaScript; each item has a veg mark, name, one-line description, a dotted leader line and a realistic price in ₹ (6 items per tab)
6. Our story: a dark brown rounded section with 2 short paragraphs and 4 stat tiles
7. Visit us: a stylised map placeholder with a pin, the address, an opening-hours table that highlights today automatically, and "Get directions" (Google Maps link) and "Call" buttons
8. Footer with the current year set by JavaScript and a few links

FUNCTIONALITY
- Every WhatsApp button opens https://wa.me/<digits-only number with 91>?text=<URL-encoded message> using my number above
- A floating round WhatsApp button in the bottom-right corner with a soft pulse animation
- Smooth scrolling, an accessible mobile menu (aria-expanded), visible focus styles, aria-labels on icon buttons and prefers-reduced-motion support
- No external images: use inline SVG and CSS for every visual so the page loads fast and works offline

SEO
- A descriptive <title> and meta description that mention the café name and area
- Open Graph tags, and CafeOrCoffeeShop JSON-LD with name, address, phone and opening hours

OUTPUT
Return the complete HTML file in one code block. Then list the 5 things I should personalise before publishing (menu, prices, photos, map link and hours).