feat: complete wcag accessibility and contrast improvements

components/blog/BlogPaginationKeyboardObserver.tsx

@@ -0,0 +1,42 @@
+'use client';
+
+import { useEffect } from 'react';
+import { useRouter } from 'next/navigation';
+
+interface BlogPaginationProps {
+  currentPage: number;
+  totalPages: number;
+  locale: string;
+}
+
+export function BlogPaginationKeyboardObserver({
+  currentPage,
+  totalPages,
+  locale,
+}: BlogPaginationProps) {
+  const router = useRouter();
+
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      // Don't trigger if user is typing in an input
+      if (
+        document.activeElement?.tagName === 'INPUT' ||
+        document.activeElement?.tagName === 'TEXTAREA' ||
+        document.activeElement?.tagName === 'SELECT'
+      ) {
+        return;
+      }
+
+      if (e.key === 'ArrowLeft' && currentPage > 1) {
+        router.push(`/${locale}/blog?page=${currentPage - 1}`);
+      } else if (e.key === 'ArrowRight' && currentPage < totalPages) {
+        router.push(`/${locale}/blog?page=${currentPage + 1}`);
+      }
+    };
+
+    window.addEventListener('keydown', handleKeyDown);
+    return () => window.removeEventListener('keydown', handleKeyDown);
+  }, [currentPage, totalPages, locale, router]);
+
+  return null;
+}