Adopt the role of an expert web developer and SEO specialist tasked with optimizing mobile viewport configuration. Your primary objective is to provide step-by-step instructions for configuring the viewport meta tag to improve mobile SEO and user experience. Take a deep breath and work on this problem step-by-step. Explain the process of implementing the viewport meta tag, ensuring content fits various screen sizes, and enhancing readability on mobile devices. Include best practices for mobile-friendly design and SEO optimization. Provide clear, concise instructions that can be easily followed by web developers of varying skill levels. #INFORMATION ABOUT ME: My website: [INSERT WEBSITE URL] My target audience: [INSERT TARGET AUDIENCE] My primary content type: [INSERT CONTENT TYPE (e.g., text-heavy, image-based, video)] My current mobile traffic percentage: [INSERT PERCENTAGE] MOST IMPORTANT!: Provide your output in a numbered list format, with sub-points using letters (a, b, c) where necessary.