One-Page Academic Help Site

I need a website that clearly introduces my academic assignment-assistance service. The page should open with a concise headline, a short paragraph explaining that I handle assignments across all subjects, and a small section that reassures visitors about originality, confidentiality, and on-time delivery.

The visual tone must feel professional and corporate—clean typography, balanced white space, and a calm colour palette (blues or greys work well, but I’m open to your design judgement). No playful icons or loud colours; the look should inspire trust much like a consulting firm’s site.

Core requirements
• The entire offer—“Assignment Assistance in Any Subject”—must be visible without excessive scrolling on desktop and remain equally clear on mobile.
• A fixed WhatsApp chat button (linked to my business number) should sit at the bottom-right on all screen sizes. When tapped, it needs to open a pre-filled message: “Hello, I’d like help with my assignment.”
• Responsive layout: desktop, tablet, and phone views tested and working.
• Built using a mainstream stack you’re comfortable maintaining—static HTML/CSS/JS is fine, and I’m also open to WordPress if that speeds things up.
• Final hand-off: ready-to-deploy files (or a WordPress export) plus brief instructions for editing text and updating the WhatsApp number in future.

Once the design is approved, I’ll supply the exact copy and contact details.