diff --git a/css/tailwind.css b/css/tailwind.css
index 91c8fd4..377ae80 100644
--- a/css/tailwind.css
+++ b/css/tailwind.css
@@ -771,3 +771,27 @@ body[data-indiekit-auth="true"] .save-later-btn:hover {
   opacity: 0.6;
   pointer-events: none;
 }
+
+/* Share Post buttons — hidden until auth confirmed */
+.share-post-btn {
+  display: none;
+}
+
+body[data-indiekit-auth="true"] .share-post-btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  cursor: pointer;
+  background: none;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  padding: 2px 8px;
+  font-size: 0.75rem;
+  color: #6b7280;
+  transition: all 0.2s ease;
+}
+
+body[data-indiekit-auth="true"] .share-post-btn:hover {
+  border-color: #d1d5db;
+  color: #10b981;
+}