diff --git a/src/app/(protected)/calendar/_components/calendar-unavailable.tsx b/src/app/(protected)/calendar/_components/calendar-unavailable.tsx
new file mode 100644
index 00000000..d9ef6baf
--- /dev/null
+++ b/src/app/(protected)/calendar/_components/calendar-unavailable.tsx
@@ -0,0 +1,22 @@
+import { Alert, Box, Typography } from "@mui/material";
+
+export function CalendarUnavailablePanel() {
+  return (
+    <Box className="mx-auto max-w-3xl">
+      <Alert severity="warning" className="mb-4">
+        Calendário indisponível — a API de calendário ainda não está implementada no backend.
+      </Alert>
+      <Typography variant="body2" color="text.secondary">
+        As rotas permanecem reservadas para quando o CalendarController for disponibilizado.
+      </Typography>
+    </Box>
+  );
+}
+
+export default function CalendarUnavailablePage() {
+  return (
+    <Box className="p-4">
+      <CalendarUnavailablePanel />
+    </Box>
+  );
+}
diff --git a/src/app/(protected)/calendar/_layout.tsx b/src/app/(protected)/calendar/_layout.tsx
index a7f9468b..01b55019 100644
--- a/src/app/(protected)/calendar/_layout.tsx
+++ b/src/app/(protected)/calendar/_layout.tsx
@@ -1,5 +1,13 @@
-import { Navigate } from "react-router-dom";
+import { Outlet } from "react-router-dom";
+import { Alert, Box } from "@mui/material";
 
 export default function CalendarLayout() {
-  return <Navigate to="/" replace />;
+  return (
+    <Box className="flex flex-col gap-4">
+      <Alert severity="warning" className="mx-4 mt-4">
+        Calendário indisponível — a API de calendário ainda não está implementada no backend.
+      </Alert>
+      <Outlet />
+    </Box>
+  );
 }
diff --git a/src/app/(protected)/calendar/edit/[id].tsx b/src/app/(protected)/calendar/edit/[id].tsx
index 751eb3ca..98c47fcd 100644
--- a/src/app/(protected)/calendar/edit/[id].tsx
+++ b/src/app/(protected)/calendar/edit/[id].tsx
@@ -1 +1 @@
-export { default } from "../_components/event-form";
+export { default } from "../_components/calendar-unavailable";
diff --git a/src/app/(protected)/calendar/index.tsx b/src/app/(protected)/calendar/index.tsx
index 93da0024..be1a4079 100644
--- a/src/app/(protected)/calendar/index.tsx
+++ b/src/app/(protected)/calendar/index.tsx
@@ -1,59 +1 @@
-import { useMemo, useRef, useState } from "react";
-import { useNavigate } from "react-router-dom";
-import type { DatesSetArg, EventClickArg } from "@fullcalendar/core";
-import type { DateClickArg } from "@fullcalendar/interaction";
-import FullCalendar from "@fullcalendar/react";
-import { Box } from "@mui/material";
-import { CalendarActionBar } from "@/components/common/calendar/calendar-action-bar";
-import { EventCalendar } from "@/components/common/calendar/event-calendar";
-import { mapEventToFullCalendar } from "@/components/common/calendar/calendar-utils";
-import { useCalendarEvents } from "@/domain/calendar/use-cases/use-calendar-events";
-
-export default function CalendarPage() {
-  const navigate = useNavigate();
-  const calendarRef = useRef<FullCalendar>(null);
-  const [range, setRange] = useState<{ start: Date; end: Date } | null>(null);
-  const [title, setTitle] = useState("");
-
-  const { data: events = [], isFetching } = useCalendarEvents(
-    range?.start ?? null,
-    range?.end ?? null,
-  );
-
-  const fullCalendarEvents = useMemo(() => events.map(mapEventToFullCalendar), [events]);
-
-  const handleDatesSet = (info: DatesSetArg) => {
-    setRange({ start: info.start, end: info.end });
-    setTitle(info.view.title);
-  };
-
-  const handleEventClick = (clickInfo: EventClickArg) => {
-    navigate(`/calendar/edit/${clickInfo.event.id}`);
-  };
-
-  const handleDateClick = (dateInfo: DateClickArg) => {
-    navigate(`/calendar/new?date=${dateInfo.dateStr}`);
-  };
-
-  const calendarApi = () => calendarRef.current?.getApi();
-
-  return (
-    <Box className="p-4">
-      <CalendarActionBar
-        title={title}
-        onTodayClick={() => calendarApi()?.today()}
-        onPrevClick={() => calendarApi()?.prev()}
-        onNextClick={() => calendarApi()?.next()}
-        onViewChange={(view) => calendarApi()?.changeView(view)}
-      />
-      <EventCalendar
-        ref={calendarRef}
-        events={fullCalendarEvents}
-        loading={isFetching}
-        onDatesSet={handleDatesSet}
-        onEventClick={handleEventClick}
-        onDateClick={handleDateClick}
-      />
-    </Box>
-  );
-}
+export { default } from "./_components/calendar-unavailable";
diff --git a/src/app/(protected)/calendar/new.tsx b/src/app/(protected)/calendar/new.tsx
index 1aef5075..be1a4079 100644
--- a/src/app/(protected)/calendar/new.tsx
+++ b/src/app/(protected)/calendar/new.tsx
@@ -1 +1 @@
-export { default } from "./_components/event-form";
+export { default } from "./_components/calendar-unavailable";