feat(arian-hero): basic implementation

[klupsky]

Links, Summary, Context

This PR adds a hero entrance animation showcase to /animations/showcase, adapted from the Arian homepage.

• Ticket: https://app.productive.io/3591-functn-gmbh/tasks/18747079
• Original: https://arian-git-develop-functn.vercel.app/en/
• Preview: http://localhost:3000/animations/showcase

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Frontend Changes

• adds hero-home-showcase.tsx with a phased hero reveal (background -> content)
• adds documentation and a full-width demo to the showcase page
• uses placeholder image, copy, and cycling facts (no cms/i18n)
• global: opens external links in a new tab

Technical decisions

• Simplified from the Arian implementation:
  • no video
  • no scroll-linked CTA morph into the navbar
• SlidingFacts is kept inline in the showcase file for easy copy-paste reuse

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Screenshots

Desktop	Mobile

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What to test

1. open /animations/showcase and scroll to Hero entrance.
2. confirm the phased reveal:
   • background image fades in
   • content slides up afterwards
3. verify the facts rotate approximately every 3 seconds.
4. on mobile:
   • CTA spans the full width
5. On desktop:
   • facts appear in the bottom-left
   • content is positioned in the bottom-right

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Checklist

• Tested on desktop
• Tested on a real mobile device
• Code comments explain technical decisions and anything non-obvious
• Accessibility checked (keyboard navigation, focus order, labels/ARIA, contrast)
• CMS content created for reviewer testing

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Project	Deployment	Actions	Updated (UTC)
taylorui	Ready	Preview, Comment	Jul 23, 2026 11:49am

[AntoniaStr]

Thank you! 😍 do you think it would be possible to trigger the animation once it is in view? Or we could use it as the actual Hero for this page (put it at the top and move explanation text below)?

[klupsky]

@AntoniaStr good idea! i added it as the hero section on out showcase page and implemented the button animation too. i'd like to ask you to have another look before i merge it please!