Build a modern, mobile-friendly website called "FF Sensi Generator".

The website should have:

• A dark gaming theme with Free Fire-inspired colors (black, orange, red, and white).
• A homepage with the title "Generate Your Perfect Free Fire Sensitivity".
• A short description: "Generate a custom sensitivity for your device and playstyle."

Create a form with these fields:

• Device Brand
• Device Model
• RAM
• Android Version
• FPS (30, 60, 90, 120)
• Play Style (Rush, Sniper, Support, All-round)
• Finger Setup (2, 3, 4, 5 fingers)

When the user clicks "Generate Sensitivity", do NOT generate the result immediately.

Instead, show a payment page that says:

"Unlock your personalized sensitivity for just ₦500."

Payment Details:
Account Number: 0861471163
Bank: PalmPay
Account Name: Samuel Odunayo

Add a button:
"I Have Paid"

When clicked, show:
"Your payment is being verified. Please contact Samuel Odunayo with your payment proof to receive your generated sensitivity."

Include a WhatsApp support button (leave the phone number as a placeholder for now).

Make the website responsive, attractive, use smooth animations, rounded buttons, glowing effects, and look like a professional gaming website.