Add thread building support.

static/styles.css

@@ -56,6 +56,10 @@ body {
   border-radius: 4px;
 }
 
+.flash-success a {
+  color: #9dd4ff;
+}
+
 .error {
   background: #401f1f;
   border: 1px solid #6b2727;
@@ -72,6 +76,28 @@ body {
   margin-bottom: 1rem;
 }
 
+.latest-status {
+  border: 1px solid #2d2d2d;
+  border-radius: 8px;
+  padding: 1rem;
+  margin-bottom: 1rem;
+  background: #191919;
+}
+
+.latest-status .status-content {
+  margin: 0.5rem 0;
+  padding: 0.5rem;
+  border-radius: 6px;
+  background: #101010;
+}
+
+.reply-checkbox {
+  display: flex;
+  gap: 0.4rem;
+  align-items: center;
+  font-size: 0.95rem;
+}
+
 .button-link {
   display: inline-block;
   padding: 0.5rem 1.1rem;