feat: narrator empty states, scroll fades, glow buttons, violet color sweep

frontend/src/components/ChatInputBar.vue

@@ -391,7 +391,7 @@ defineExpose({ focus, prefill })
   display: flex;
   align-items: center;
   justify-content: center;
-  background: linear-gradient(135deg, #6366f1, #4f46e5);
+  background: linear-gradient(135deg, #7c3aed, #5b21b6);
   color: #fff;
   border: none;
   border-radius: 50%;
@@ -400,7 +400,7 @@ defineExpose({ focus, prefill })
   flex-shrink: 0;
   transition: box-shadow 0.15s;
 }
-.btn-send:hover { box-shadow: 0 0 12px rgba(99, 102, 241, 0.5); }
+.btn-send:hover { box-shadow: 0 0 16px rgba(124, 58, 237, 0.35); }
 .btn-send:disabled { opacity: 0.35; cursor: default; box-shadow: none; }
 
 .btn-abort-inline {

frontend/src/components/ChatPanel.vue

@@ -338,7 +338,7 @@ defineExpose({ focus, prefill, send })
           <p
             v-if="!store.currentConversation?.messages.length && !store.streaming"
             class="empty-msg"
-          >Send a message to start the conversation.</p>
+          >Start a conversation.</p>
         </div>
       </div>
 
@@ -525,6 +525,8 @@ defineExpose({ focus, prefill, send })
   flex: 1;
   overflow-y: auto;
   padding: 1rem;
+  mask-image: linear-gradient(to bottom, transparent, black 20px, black calc(100% - 20px), transparent);
+  -webkit-mask-image: linear-gradient(to bottom, transparent, black 20px, black calc(100% - 20px), transparent);
 }
 .messages-inner {
   display: flex;
@@ -746,6 +748,9 @@ defineExpose({ focus, prefill, send })
   font-size: 0.9rem;
   text-align: center;
   padding: 2rem 1rem;
+  font-family: 'Fraunces', Georgia, serif;
+  font-style: italic;
+  color: var(--color-accent-warm, #d4a017);
 }
 
 /* ── Widget variant ── */