New pages (11): about, blog, changelog, compare, faq, football,
gymnastics, martial-arts, partners, privacy, terms

Technical/SEO: sitemap.xml, robots.txt, manifest.json, Open Graph
meta tags, canonical URLs on all existing pages

UX enhancements (main.js rewrite): sticky CTA bar, exit-intent popup,
back-to-top button, pricing calculator, enhanced mobile drawer,
micro-interactions, View Transitions API, social proof counters

Homepage additions: social proof stats section, testimonials section,
data-sticky-cta and data-exit-intent attributes

Pricing page: interactive cost calculator with slider

Contact page: simplified to 3 fields, pre-filled WhatsApp message

CSS: new styles for FAQ accordion, comparison table, changelog
timeline, blog cards, about values, partner tiers, newsletter CTA,
testimonials, sticky CTA, exit modal, back-to-top, micro-interactions
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>