Style: Enterprise SaaS (Mobile). Type: Mobile. Keywords: enterprise, saas, b2b, professional, indigo, violet, gradient, polished, trustworthy, clean, approachable, spring, haptic. Primary Colors: Indigo #4F46E5, Violet #7C3AED. Secondary Colors: Slate 50 #F8FAFC, White #FFFFFF, Slate 900 #0F172A, Slate 500 #64748B, Emerald #10B981, Slate 200 #E2E8F0. Effects & Animation: Indigo→Violet gradient primary CTAs + active tab highlights, colored card shadows rgba(79,70,229,0.08), pill buttons or 12pt radius, full-width CTA at screen bottom, spring press scale 0.97, floating label inputs with animated focus border, skeletal loading pulses (Indigo/Slate tint), Bottom Sheets with drag dismiss, swipe-to-action list cards, scroll-linked title collapse. Best For: B2B backend management, productivity tools, government and finance mobile apps, SaaS companion apps, enterprise dashboards. Do Not Use For: Pure consumer entertainment, Gen-Z youth apps, gaming UI, ultra-minimal editorial. Light Mode: ✓ Light. Dark Mode: ✓ Dark-ready (token inversion). Performance: ✓ Performant. Accessibility: ✓ WCAG AA. Mobile-Friendly: ✓ Mobile-First (Safe Area strict). Conversion-Focused: ✓ High. Framework Compatibility: React Native 10/10, Reanimated 10/10, NativeWind 9/10. Era/Origin: Enterprise/SaaS. Complexity: High. AI Prompt Keywords: Design a Modern Enterprise SaaS mobile app. Background #F8FAFC, surfaces #FFFFFF, primary #4F46E5 (Indigo), secondary #7C3AED (Violet). Typography: Plus Jakarta Sans, ExtraBold 800 for screen titles, Bold 700 for section headers, SemiBold 600 for buttons, Regular 400 for body. Line height 1.1–1.2 for titles, 1.4–1.5 for body. Primary button: full-width, LinearGradient Indigo→Violet, pill-shaped or radius 12, scale 0.95 on press with medium haptic. Cards: white bg, 16pt radius, hairline border, shadow rgba(79,70,229,0.08). Inputs: white bg, 8pt radius, floating label, Indigo border on focus. Bottom Tab Navigation (3–5 items), gradient active tab icon. Screen padding 16–20pt. Vertical rhythm 24pt between sections, 12pt between items. Shared Element Transition for hero cards opening to detail.. CSS/Technical: backgroundColor: '#F8FAFC', surfaceBg: '#FFFFFF', textPrimary: '#0F172A', textMuted: '#64748B', primary: '#4F46E5', secondary: '#7C3AED', success: '#10B981', border: '#E2E8F0', radiusCard: 16, radiusButton: 999, radiusInput: 8, shadowCard: 'rgba(79,70,229,0.08)', gradientPrimary: ['#4F46E5', '#7C3AED'], screenPadding: 20. Implementation Checklist: ☐ Background #F8FAFC applied, ☐ Indigo→Violet gradient on primary CTA, ☐ Colored card shadows (not gray), ☐ Plus Jakarta Sans typography, ☐ Floating label inputs with Indigo focus, ☐ Scale 0.97 press with haptic Medium, ☐ Bottom Tab Navigation implemented, ☐ Safe Area strict compliance, ☐ Skeletal loading placeholders, ☐ Reduced Motion fallback. Design System Variables: --bg: #F8FAFC, --surface: #FFFFFF, --text: #0F172A, --muted: #64748B, --primary: #4F46E5, --secondary: #7C3AED, --success: #10B981, --border: #E2E8F0, --radius-card: 16px, --radius-pill: 999px, --radius-input: 8px, --shadow-card: rgba(79,70,229,0.08), --font: Plus Jakarta Sans.