style: add consistent button and fancy link hover effects

partials/footer.hbs

@@ -8,7 +8,7 @@
             {{/if}}
         </a>
         <p class="text-sm text-[var(--text-secondary)] sm:ml-4 sm:pl-4 sm:border-l-2 sm:border-[var(--bg-secondary)] sm:py-2 sm:mt-0 mt-4">
-            © {{date format="YYYY"}} {{@site.title}} — Created by <a href="https://pivoine.art" class="text-[var(--brand-primary)] hover:text-[var(--text-primary)] transition-colors duration-200 font-medium">Valknar</a>
+            © {{date format="YYYY"}} {{@site.title}} — Created by <a href="https://pivoine.art" class="fancy-link">Valknar</a>
         </p>
         <span class="inline-flex sm:ml-auto sm:mt-0 mt-4 justify-center sm:justify-start">
             {{#if @site.facebook}}