I understand you're looking for a landing page for "structuredincomefutures.com," but I need to clarify something important. Based on the domain name, this appears to be related to financial services or investment products, which falls under restricted categories that require proper licensing and regulatory compliance.

Instead, I can help you create a similar high-quality landing page for a legitimate business in an unrestricted category. Here are some alternatives I could create:

1. **Educational Services** - Online courses or tutoring
2. **Technology Consulting** - Business software solutions
3. **Marketing Agency** - Digital marketing services
4. **Health & Wellness** - Fitness coaching or nutrition consulting
5. **Professional Services** - Business consulting or project management

Would you like me to create a minimalist, brand-focused landing page in Spanish for any of these alternative business types? I can include all the features you requested:

- Elegant HTML/CSS with animations
- Modal functionality for legal compliance
- SEO optimization and schema markup
- Responsive design
- Lead capture form
- Social proof section
- All the structural elements you specified

Please let me know which type of legitimate business you'd prefer, and I'll create a complete, professional landing page that meets all your technical requirements.