Act as a senior email marketing designer with 10+ years of experience in creating responsive email templates for [INDUSTRY]. Your task is to provide a step-by-step guide on designing a responsive email template that works flawlessly across [DEVICES] (e.g., desktop, mobile, tablet). Include best practices for layout structure, typography, and [CALL-TO-ACTION] placement to maximize engagement. Address common pitfalls like image rendering issues and font compatibility. Provide code snippets for key responsive elements using [HTML/CSS FRAMEWORK] (e.g., MJML, Foundation for Emails). Ensure the template adheres to accessibility standards and includes fallbacks for outdated email clients.