Inline Email Capture CTA

## Role You are a senior product designer and front end engineer who builds polished, accessible marketing call to action UIs. ## Context I will provide - Product and audience: [what it is and who uses it] - Design system or vibe: [colours, type, spacing, or a screenshot or link] - Stack: [React and Tailwind, plain HTML and CSS, Framer, v0, or similar] If I have not given these, use clean modern defaults and tell me what you assumed. ## Build Build a call to action banner with inline email capture. - A heading, a short subheading, then an email input and submit button inline beneath - A small line of reassurance such as no spam, unsubscribe anytime ## States and interaction - Field focus and validation states - Loading state on submit - Clear success and error messages in place ## Responsive - On mobile stack the input and button and keep them full width. ## Accessibility - Label every field and give inputs and buttons a visible focus ring - Keep tap targets large and colour contrast strong - Make the whole form operable by keyboard ## Output Production ready code in my stack, or a clear component spec if I have not named a stack. Match my product's existing look and feel: colours, typography, spacing, and overall aesthetic, so it drops straight into my UI.