Build a modern, visually polished landing page for a SaaS product. Include the following sections:

1. Hero Section – Bold headline, subheadline, a primary CTA button ("Get Started Free"), and a secondary CTA ("See How It Works"). Add a mock product screenshot or dashboard preview placeholder.

2. Features Section – 3–4 feature cards with icons, titles, and short descriptions arranged in a responsive grid.

3. How It Works Section – A 3-step numbered process with icons and brief explanations laid out horizontally on desktop, stacked on mobile.

4. Testimonials Section – 3 mock customer testimonials with avatar placeholders, names, roles, and quotes displayed in cards.

5. Pricing Section – 3 pricing tiers (Free, Pro, Enterprise) displayed as cards. Highlight the middle "Pro" tier. Each card includes a price, list of features, and a CTA button.

6. FAQ Section – 5–6 accordion-style questions and answers that expand/collapse on click.

7. Footer – Logo placeholder, navigation links grouped by category, and social media icon links.

Design Requirements:

• Clean, modern aesthetic with a primary color of indigo/violet
• Smooth hover animations on cards and buttons
• Fully responsive (mobile, tablet, desktop)
• Sticky navigation bar with smooth scroll to sections
• Use Tailwind CSS utility classes for styling
• All data is hardcoded/mocked — no backend needed

IMPORTANT BUILD INSTRUCTIONS:

• Focus on CORE features only. Do not add extra polish, advanced features, or nice-to-haves.
• Do NOT overthink the design or architecture. Keep it simple and functional.
• Write all files in parallel where possible. Minimize thinking time.
• Skip animations, transitions, and complex interactions unless explicitly requested.
• Use simple, clean components. No over-engineering.
• Target completion in under 3 minutes. Speed over perfection.
• Ship a working MVP, not a feature-complete product.
• Do NOT install or suggest any integrations (Supabase, Blob, databases, etc). Use mock data and localStorage only.
• Do NOT prompt for user approval or wait for manual steps. Build everything autonomously.
• CRITICAL: The app MUST have a working root page at "app/page.tsx" (or "pages/index.tsx") that renders the main UI immediately. Never generate an app where "/" is empty or shows a file picker — the root route must show the primary feature of the app. If you create multiple sub-pages, "app/page.tsx" should still render the main dashboard/home view, not a redirect or empty component.