feat: complete FIT Labs landing page

- Astro static site with Tailwind CSS v4
- 6 sections: Hero (gradient mesh), About, Capabilities, Differentiator, CTA, Footer
- Sticky navbar with mobile menu
- Scroll reveal animations
- SEO meta tags and structured data
- Docker + nginx config for Coolify deployment

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/superpowers/specs/2026-03-14-fitlabs-landing-design.md

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+# FIT Labs Landing Page — Design Spec
+
+## Overview
+
+Single-page landing for **fitlabs.dev**, the innovation incubator of FactorIT. Showcases AI capabilities for enterprise clients. Professional, innovative, not arrogant.
+
+**Stack:** Astro (static output)
+**Deploy:** Coolify
+**Domain:** fitlabs.dev
+
+## Visual Identity
+
+**Approach:** Dual Mode — light/dark alternating sections. Connected to FactorIT but with its own personality.
+
+### Color Palette — "Electric Gradient"
+
+| Role | Color | Hex |
+|------|-------|-----|
+| Dark background | Navy deep | `#0a0a1a` |
+| Dark surface | Slate navy | `#0f172a` |
+| Primary blue | FactorIT evolved | `#0369a1` |
+| Accent violet | Innovation | `#7c3aed` |
+| Accent cyan | Tech highlight | `#06b6d4` |
+| Light background | Ice blue | `#f0f9ff` |
+| Light surface | Soft indigo | `#e0e7ff` |
+| Light base | Snow | `#f8fafc` |
+| Dark text | Headings on light | `#0f172a` |
+| Dark body text | Body on light | `#64748b` |
+| Light text | Headings on dark | `#f8fafc` |
+| Light body text | Body on dark | `#94a3b8` |
+| Primary gradient | CTA / accents | `linear-gradient(135deg, #0369a1, #7c3aed)` |
+| Extended gradient | Decorative | `linear-gradient(135deg, #0369a1, #7c3aed, #06b6d4)` |
+
+### Typography
+
+- **Primary font:** Inter (modern, geometric, excellent readability)
+- **Headings:** 700–800 weight
+- **Body:** 400 weight
+- **Accent text:** Gradient fill on key phrases
+
+### Assets
+
+- `LogoFIT.png` — primary logo, placed in `public/LogoFIT.png` for the Astro build
+- Logo links to factorit.com
+- **Icon library:** Lucide Icons (lightweight, consistent with modern design)
+
+## Page Structure — 6 Sections
+
+### Navbar (sticky)
+
+- Logo FIT Labs (left) — links to factorit.com
+- Navigation links: Capacidades (`#capacidades`), Nosotros (`#nosotros`), Contacto (`#contacto`) (right)
+- Contact button with gradient background
+- Transparent on hero, solid dark on scroll
+- **Mobile:** Hamburger menu → full-screen overlay, slides down, closes on link click or outside tap
+
+### Section 1: Hero (dark)
+
+- **ID:** `id="hero"`
+- **Style:** Gradient mesh — 3 large radial-gradient circles with `blur(80px)`, keyframe-animated position shifts over 20s cycle
+- **Content:**
+  - Subtitle: "FactorIT Innovation Lab" (cyan, uppercase, letter-spaced)
+  - Title: "FIT Labs" (white, bold, large)
+  - Description: "Donde la inteligencia artificial se convierte en soluciones enterprise que escalan"
+  - CTA button: "Explorar capacidades ↓" (gradient background)
+### Section 2: Qué es FIT Labs (light)
+
+- **ID:** `id="nosotros"`
+- **Background:** `#f0f9ff`
+- **Content:**
+  - Label: "Sobre nosotros" (blue, uppercase)
+  - Heading: "La incubadora de innovación de FactorIT"
+  - Body text: explains what FIT Labs is — born from FactorIT's tech DNA to solve complex challenges with AI. Emphasizes real-world production solutions, not demos.
+- **Layout:** Centered text, max-width constrained
+
+### Section 3: Capacidades (dark)
+
+- **ID:** `id="capacidades"`
+- **Style:** Vertical list with colored left border accents
+- **5 capabilities:**
+  1. **Documentos Inteligentes** — OCR, extraction, automatic classification | border: cyan
+  2. **Agentes de IA** — Conversational and autonomous | border: violet
+  3. **Automatización con IA** — End-to-end intelligent processes | border: blue
+  4. **Análisis de Datos** — Business insights and intelligence | border: cyan
+  5. **Soluciones Industriales** — AI applied to your specific vertical | border: violet
+- **Each item:** Icon (left) + title + subtitle on dark card (`#0f172a`)
+- **Interaction:** Subtle hover effect (glow or expand)
+
+### Section 4: Diferenciador (light)
+
+- **Style:** Two-column — narrative text left, value list right
+- **Left column:**
+  - Heading: "Innovación con los pies en la tierra"
+  - Body: "Nos apasiona la IA, pero nos obsesiona que funcione. Cada proyecto que sale de FIT Labs está pensado para integrarse en operaciones reales, soportar carga real, y crecer cuando tu negocio crece."
+- **Right column — 3 values with colored left borders:**
+  1. "Arquitectura para escalar" (blue border)
+  2. "Performance en producción" (violet border)
+  3. "Integración con tu ecosistema" (cyan border)
+- **Tone:** Human, professional, not cold or arrogant
+
+### Section 5: CTA / Contacto (dark)
+
+- **ID:** `id="contacto"`
+- **Style:** Centered, gradient mesh accent (subtle violet glow)
+- **Content:**
+  - Heading: "¿Tienes un desafío en mente?"
+  - Body: "Cuéntanos qué problema quieres resolver. Nosotros vemos cómo la IA puede ayudarte."
+  - Button: "Conversemos →" (gradient, opens `mailto:contacto@fitlabs.dev`)
+  - Email: contacto@fitlabs.dev (text below button, also mailto link)
+
+### Section 6: Footer (dark, darker)
+
+- **Background:** `#06080f`
+- **Left:** FIT Labs logo + "by FactorIT"
+- **Right:** Links — LinkedIn, GitHub, factorit.com
+
+## Animations & Interactions
+
+- **Hero gradient mesh:** 3 radial-gradient circles with `blur(80px)`, keyframe-animated position shifts over 20s cycle
+- **Scroll reveals:** Sections fade in on scroll (IntersectionObserver)
+- **Capability list:** Subtle left-slide-in on scroll, hover glow on border
+- **Navbar:** Transparent → solid background on scroll
+- **CTA button:** Hover scale + glow effect
+- **No heavy JS animations** — keep it performant and lightweight
+
+## Responsive Behavior
+
+- **Desktop (>1024px):** Full layout as described, two-column differentiator
+- **Tablet (768-1024px):** Slightly narrower, differentiator stacks
+- **Mobile (<768px):** Single column, hamburger nav (full-screen overlay), capabilities stack naturally (list already mobile-friendly)
+
+## Technical Decisions
+
+- **Astro** with static output (`output: 'static'`)
+- **Tailwind CSS** for styling
+- **No framework islands needed** — pure HTML/CSS with minimal JS for:
+  - Navbar scroll behavior
+  - Scroll reveal animations
+  - Gradient mesh animation
+- **Deployment:** Coolify with Dockerfile (node build → nginx serve)
+- **SEO:**
+  - `og:title`: "FIT Labs — Innovación con IA by FactorIT"
+  - `og:description`: "Soluciones de inteligencia artificial enterprise que escalan. La incubadora de innovación de FactorIT."
+  - `og:image`: to be created (social share card with FIT Labs branding)
+  - Structured data: `Organization` type
+- **Performance target:** Lighthouse 95+ on all metrics
+
+## Content Language
+
+All content in **Spanish**. The site targets Latin American and Spanish-speaking enterprise clients.
+
+## Out of Scope (v1)
+
+- Blog / articles
+- Project showcase / portfolio
+- Contact form (v1 uses mailto)
+- Multi-language support
+- Analytics dashboard
+- Authentication