fix(a11y): resolve color-contrast and link-in-text-block WCAG violations

components/blog/PowerCTA.tsx

@@ -19,13 +19,13 @@ export default function PowerCTA({ locale }: PowerCTAProps) {
       <div className="absolute top-0 right-0 w-64 h-64 bg-primary/20 rounded-full blur-3xl -mr-32 -mt-32 transition-transform group-hover:scale-110 duration-1000" />
 
       <div className="relative z-10">
-        <div className="inline-block px-4 py-1 bg-accent/20 text-accent text-xs font-bold uppercase tracking-[0.2em] rounded-full mb-8">
+        <div className="inline-block px-4 py-1 bg-primary-light/20 text-primary-light text-xs font-bold uppercase tracking-[0.2em] rounded-full mb-8">
           {isDe ? 'Lösungen' : 'Solutions'}
         </div>
 
         <h3 className="text-2xl md:text-4xl font-bold text-white mb-8 leading-tight">
           {isDe ? 'Bereit für die' : 'Ready for the'}
-          <span className="text-accent block">{isDe ? 'Energiewende?' : 'Energy Transition?'}</span>
+          <span className="text-primary-light block">{isDe ? 'Energiewende?' : 'Energy Transition?'}</span>
         </h3>
 
         <p className="text-xl text-white/90 mb-10 leading-relaxed max-w-2xl">
@@ -46,9 +46,9 @@ export default function PowerCTA({ locale }: PowerCTAProps) {
               : 'Certified quality according to EU standards',
           ].map((item, i) => (
             <div key={i} className="flex items-center gap-4 text-white/90">
-              <div className="w-6 h-6 rounded-full bg-accent/20 flex items-center justify-center flex-shrink-0">
+              <div className="w-6 h-6 rounded-full bg-primary-light/20 flex items-center justify-center flex-shrink-0">
                 <svg
-                  className="w-3 h-3 text-accent"
+                  className="w-3 h-3 text-primary-light"
                   fill="none"
                   stroke="currentColor"
                   viewBox="0 0 24 24"