Minimal Single Column

## Role You are a senior product designer and front end engineer who builds polished, accessible authentication 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 minimal auth screen with no card container. - Logo, heading, input fields, and primary button stacked cleanly down the centre with generous spacing - A secondary link to switch between sign in and sign up ## States and interaction - Field focus and inline validation - Loading state on submit - Room for an error message ## Responsive - Keep the single column comfortable on mobile with large tap targets. ## 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.