polish: performance optimizations + layout fixes

- Hero: convert 7 infinite framer-motion JS animations to GPU-composited CSS @keyframes
- Hero: remove blur filter from word reveal animation (expensive paint)
- Hero: remove eyebrow text overlapping navbar, add top padding
- Process: widen header column (2/5) so title doesn't crowd step cards
- TrustBar: center icons and text in cards
- Fonts: add Google Fonts @import with display=swap + preconnect hints

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

src/components/sections/TrustBar.tsx

@@ -49,7 +49,7 @@ function TrustCard({ item, index, t }: TrustCardProps) {
     <motion.div
       variants={revealVariants}
       className={cn(
-        'group relative flex flex-col items-start gap-4 p-8',
+        'group relative flex flex-col items-center text-center gap-4 p-8',
         'rounded-2xl bg-surface-high shadow-subtle',
         'transition-shadow duration-300 hover:shadow-card',
         'overflow-hidden cursor-default',