UX Writing a microcopy systém

Navrhni UX writing a microcopy systém pro [PRODUKT/APLIKACE]. Typ: [WEB/MOBILE/VOICE]. Audience: [B2B/B2C/PROSUMER]. Brand voice: [FRIENDLY/PROFESSIONAL/PLAYFUL/AUTHORITATIVE]. Struktura: 1) **Voice & Tone Guidelines** - brand voice pillars (3-4 core attributes), tone spectrum (formal ↔ casual, serious ↔ playful), do's and don'ts examples, voice chart by situation (error vs success messages), 2) **Microcopy Patterns** - button labels (CTAs), error messages (user-friendly explanations), empty states (helpful guidance), loading states (encouraging feedback), success messages (celebration, next steps), 3) **UX Writing Principles** - clarity (simple language), brevity (action-oriented), consistency (terminology), tone of voice (brand personality), inclusivity (avoid assumptions), 4) **Forms & Validation** - field labels (clear, concise), placeholder text (examples, not instructions), error messages (specific, actionable), success messages, helper text, character limits display, 5) **Onboarding & Empty States** - welcome messages, empty state copy ("No items yet" vs "Start by..."), zero states, first-time user guidance, progressive disclosure, 6) **Error Messages & Feedback** - error messages (human-friendly, actionable), success confirmations, loading states, offline states, 404/500 error pages, 7) **Microcopy** - button labels, form labels, placeholder text, tooltips, confirmation dialogs, empty states, 8) **Email & Notifications** - transactional emails, marketing emails, push notifications, in-app notifications, SMS messages, 9) **Accessibility** - alt text guidelines, ARIA labels, screen reader considerations, keyboard navigation text, error messages (clear, actionable), 10) **Localization Ready** - avoid idioms, clear context for translators, string length considerations, date/time format flexibility. Zahrň 15+ examples s before/after comparisons.