Worpress website design

I need single page wesite that aligns with a clean, corporate-and-professional aesthetic. The page should load fast, look polished on desktop and mobile, and steer visitors toward clearly marked call-to-action buttons that I will supply copy for... (Budget: $150 - $300 USD, Jobs: CMS, CSS, HTML, Page Speed Optimization, PHP, SEO, Web Design, Website Design, Website Development, WordPress)