fixed the send button, finally.

front_files/index.css

@@ -117,7 +117,7 @@ body {
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  width: 100%;
+  width: auto;
   padding: 14px 20px;
   border-radius: 999px;
   border: none;
@@ -146,6 +146,10 @@ body {
   box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
 }
 
+.actions .btn {
+  width: 100%;
+}
+
 .btn-secondary {
   background: var(--secondary);
   color: var(--secondary-text);
@@ -267,12 +271,41 @@ body {
 
 .chat-input-row {
   display: flex;
-  gap: 8px;
+  gap: 10px;
+  align-items: center;
+  background: rgba(3, 12, 24, 0.7);
+  border-radius: 22px;
+  padding: 4px 6px 4px 12px;
+  border: 1px solid rgba(255, 255, 255, 0.08);
 }
 
 .chat-input-row .input {
-  flex: 1;
+  flex: 1 1 auto;
+  min-width: 0;
   margin-bottom: 0;
+  border: none;
+  background: transparent;
+  height: 44px;
+  line-height: 44px;
+  padding: 0;
+}
+
+.chat-send-btn {
+  width: 44px;
+  min-width: 44px;
+  height: 44px;
+  padding: 0;
+  border-radius: 14px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: none;
+}
+
+.chat-send-btn .send-icon {
+  width: 18px;
+  height: 18px;
+  fill: currentColor;
 }
 
 .chat-message {