diff --git a/src/styles/globals.css b/src/styles/globals.css
index 68bc3a1..1dcedfc 100644
--- a/src/styles/globals.css
+++ b/src/styles/globals.css
@@ -109,6 +109,29 @@
   }
 }
 
+.card-hover {
+  @apply transition-all duration-200 hover:shadow-lg hover:ring-foreground/20;
+}
+
+/* grid-equal-height: force every direct child to fill the row */
+.grid-equal-height > * {
+  height: 100%;
+}
+
+/* card-full-height: card fills its wrapper */
+.card-full-height {
+  @apply h-full;
+}
+
+/* card-content-stretch: CardContent grows to push footer content down */
+.card-content-stretch {
+  @apply flex-1;
+}
+
+.sidebar-contact-link {
+  @apply rounded-lg;
+}
+
 @keyframes fade-in-up {
   from { opacity: 0; transform: translateY(10px); }
   to { opacity: 1; transform: translateY(0); }