Fix #29: Create impressum.html with full §5 TMG details and datenschutz.html with DSGVO-compliant privacy policy. Fix footer links in main page. Both pages use landingpage design, have meta robots noindex, and are responsive.
Fix #28: Enlarge CTA button, increase font weight, add border-radius and box-shadow for better visibility. Improve hover effect with stronger lift and shadow. Touch target >= 44px.