UI/UX (User Interface / User Experience)
The visual design (UI) and overall feel (UX) of an application, covering everything from button placement to user flow.
UI is what users see: colors, typography, layout, buttons, icons. UX is what users feel: is the flow intuitive? Can they accomplish their goal without frustration? Great products nail both.
UI decisions include choosing a color palette, picking fonts, spacing elements consistently, and making interactive states (hover, active, disabled) feel responsive. UX decisions include where to place navigation, how many steps a checkout flow needs, what error messages say, and whether a loading state keeps users informed.
For vibe coders, AI tools are excellent at generating UI components quickly. You can describe a layout and get working code in seconds. The harder part is UX judgment: knowing what to build, what to simplify, and what to remove. That intuition comes from using great products, studying design patterns, and testing with real users.
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