Static Promotional WordPress Design

I need a fast-loading, fully responsive WordPress site that acts as a static promotional hub for my brand. The build should look polished on desktop and mobile, rely on clean code, and allow me to update text and images effortlessly through the normal WordPress editor (Gutenberg or Elementor—your call).

Here’s what I expect:
• Initial wireframe or theme suggestion that matches the brand feel
• Home, About, Services and Contact pages configured, with room for future expansion
• On-page SEO basics in place—proper headings, meta tags and image optimisation
• Security and caching plugins set up so the site stays safe and quick
• Final hand-over that includes login credentials, a short video or PDF showing me how to edit content and a seven-day post-launch support window

When you reply, focus on the relevant experience you have with static WordPress builds and point me to a couple of finished sites that best mirror this scope. A concise outline of your process—theme choice, custom CSS, plugins you prefer—will help me make a fast decision.