update frontend

static/style.css

@@ -190,10 +190,98 @@ body {
     padding: 12px 16px;
     font-size: 14px;
     line-height: 1.7;
-    white-space: pre-wrap;
     word-break: break-word;
 }
 
+/* Markdown content inside assistant bubble */
+.bubble h1, .bubble h2, .bubble h3, .bubble h4 {
+    margin: 12px 0 6px;
+    font-weight: 600;
+    line-height: 1.3;
+}
+.bubble h1 { font-size: 18px; }
+.bubble h2 { font-size: 16px; }
+.bubble h3 { font-size: 15px; }
+
+.bubble p { margin: 0 0 8px; }
+.bubble p:last-child { margin-bottom: 0; }
+
+.bubble ul, .bubble ol {
+    margin: 6px 0;
+    padding-left: 20px;
+}
+.bubble li { margin: 2px 0; }
+
+.bubble code {
+    background: #ffffff10;
+    padding: 1px 5px;
+    border-radius: 4px;
+    font-size: 13px;
+    font-family: 'SF Mono', 'Consolas', 'Menlo', monospace;
+}
+
+.bubble pre {
+    background: #0a0a0a;
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    padding: 10px 12px;
+    margin: 8px 0;
+    overflow-x: auto;
+}
+.bubble pre code {
+    background: none;
+    padding: 0;
+    font-size: 12px;
+    line-height: 1.5;
+}
+
+.bubble blockquote {
+    border-left: 3px solid var(--accent);
+    margin: 8px 0;
+    padding: 4px 12px;
+    color: var(--text-dim);
+}
+
+.bubble a {
+    color: #60a5fa;
+    text-decoration: none;
+}
+.bubble a:hover { text-decoration: underline; }
+
+.bubble table {
+    border-collapse: collapse;
+    margin: 8px 0;
+    width: 100%;
+    font-size: 13px;
+}
+.bubble th, .bubble td {
+    border: 1px solid var(--border);
+    padding: 6px 10px;
+    text-align: left;
+}
+.bubble th { background: #ffffff08; font-weight: 600; }
+
+.bubble strong { font-weight: 600; }
+.bubble em { font-style: italic; }
+
+.message.user .bubble {
+    white-space: pre-wrap;
+}
+
+.msg-meta {
+    font-size: 11px;
+    color: var(--text-muted);
+    padding: 0 4px;
+    display: flex;
+    gap: 8px;
+    align-items: center;
+}
+
+.msg-meta .timing {
+    color: var(--accent);
+    font-weight: 500;
+}
+
 .sources {
     display: flex;
     flex-wrap: wrap;