fix: suppress site chat on mobile

components/site-chat-widget.tsx

@@ -64,6 +64,7 @@ const CHAT_UNAVAILABLE_MESSAGE = "Jessica is temporarily unavailable right now.
 const SESSION_STORAGE_KEY = "rmv-site-chat-session"
 const PROFILE_STORAGE_KEY = "rmv-site-chat-profile"
 const PANEL_MAX_HEIGHT = "min(40rem, calc(100vh - 7rem))"
+const MOBILE_CHAT_MEDIA_QUERY = "(max-width: 767px)"
 
 function createMessage(role: ChatRole, content: string): ChatMessage {
   return {
@@ -197,7 +198,7 @@ export function SiteChatWidget() {
     () => CHAT_INTENT_OPTIONS.map((option) => ({ label: option, value: option })),
     [],
   )
-  const isSuppressed = isSiteChatSuppressedRoute(pathname)
+  const [isMobileViewport, setIsMobileViewport] = useState(false)
   const [isOpen, setIsOpen] = useState(false)
   const [messages, setMessages] = useState<ChatMessage[]>([])
   const [draft, setDraft] = useState("")
@@ -210,6 +211,23 @@ export function SiteChatWidget() {
   const [, setLimits] = useState<ChatLimitStatus | null>(null)
   const messagesEndRef = useRef<HTMLDivElement | null>(null)
 
+  useEffect(() => {
+    const mediaQuery = window.matchMedia(MOBILE_CHAT_MEDIA_QUERY)
+    const handleViewportChange = () => setIsMobileViewport(mediaQuery.matches)
+
+    handleViewportChange()
+
+    if (typeof mediaQuery.addEventListener === "function") {
+      mediaQuery.addEventListener("change", handleViewportChange)
+      return () => mediaQuery.removeEventListener("change", handleViewportChange)
+    }
+
+    mediaQuery.addListener(handleViewportChange)
+    return () => mediaQuery.removeListener(handleViewportChange)
+  }, [])
+
+  const isSuppressed = isSiteChatSuppressedRoute(pathname) || isMobileViewport
+
   useEffect(() => {
     const storedSessionId = window.localStorage.getItem(SESSION_STORAGE_KEY)
     if (storedSessionId) {