UI (User Interface) and UX (User Experience) are two pillars of modern design. UI is what the user sees. UX is how it feels.
UI vs UX
UI is appearance only. UX is the experience. You can have good UI but bad UX.
UX design process
1. Empathize. 2. Define. 3. Ideate. 4. Prototype. 5. Test. Iterative.
User research
Interviews, surveys, observation, competitive analysis. User personas.
User journey and flow
Journey is the whole path. Flow is one specific task.
Information architecture
3-click rule, clear categories, search.
UI principles
Hierarchy, Contrast, Alignment, Repetition, Proximity.
Color theory
Color wheel. Monochromatic, analogous, complementary, triadic.
Typography
1-2 fonts. Hierarchy. Line height 1.5-1.8. Line length 50-75 chars.
Spacing
8px grid. Whitespace matters.
Mobile-first
70%+ mobile. Tap targets 48x48px.
Accessibility
WCAG: contrast 4.5:1, alt text, keyboard navigation.
Microinteractions
Small animations improve the experience.
Tools
Figma, Sketch, Adobe XD.
Sayt.uz
Mobile-first. Brand colors. Inter font. 3-click rule. WCAG AA.