feat(auth): protect Collab, Community Q&A, and Leetcode routes behind Google Sign-In

src/App.tsx

@@ -2,6 +2,7 @@ import { useEffect } from 'react';
 import { BrowserRouter, Routes, Route, useLocation } from 'react-router-dom';
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { AuthProvider } from '@/context/AuthContext';
+import ProtectedRoute from '@/components/Auth/ProtectedRoute';
 import MainLayout from '@/layouts/MainLayout';
 import Home from '@/pages/Home/Home';
 import Notes from '@/pages/Notes/Notes';
@@ -48,9 +49,42 @@ function App() {
               <Route path="/bus-routes" element={<BusRoutes />} />
               <Route path="/faculty" element={<Faculty />} />
               <Route path="/events" element={<Events />} />
-              <Route path="/community" element={<Community />} />
+
-              <Route path="/collab" element={<DevCollab />} />
+              {/* Protected Routes — Require Google Sign-In */}
-              <Route path="/leetcode" element={<LeetcodeLeaderboard />} />
+              <Route
+                path="/community"
+                element={
+                  <ProtectedRoute
+                    title="RIT Q&A Community"
+                    description="Connect with fellow RIT students and ask senior helpers any question about campus life and academics."
+                  >
+                    <Community />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/collab"
+                element={
+                  <ProtectedRoute
+                    title="Developer Collab Hub"
+                    description="Post open-source projects, search for co-developers, and connect with fellow programmers."
+                    requireVerifiedStudent={true}
+                  >
+                    <DevCollab />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/leetcode"
+                element={
+                  <ProtectedRoute
+                    title="RIT LeetCode Leaderboard"
+                    description="Track campus competitive programming rankings and see top RIT coders."
+                  >
+                    <LeetcodeLeaderboard />
+                  </ProtectedRoute>
+                }
+              />
             </Route>
           </Routes>
         </AuthProvider>

src/components/Auth/ProtectedRoute.tsx

@@ -0,0 +1,100 @@
+import { type ReactNode } from 'react';
+import { motion } from 'framer-motion';
+import { ShieldAlert, LogIn, Sparkles, ShieldCheck } from 'lucide-react';
+import { useAuth } from '@/context/AuthContext';
+
+interface ProtectedRouteProps {
+  children: ReactNode;
+  title: string;
+  description: string;
+  requireVerifiedStudent?: boolean;
+}
+
+export default function ProtectedRoute({
+  children,
+  title,
+  description,
+  requireVerifiedStudent = false,
+}: ProtectedRouteProps) {
+  const { isAuthenticated, isVerifiedStudent, loginWithGoogle, user } = useAuth();
+
+  // If user is authenticated (and meets verified student criteria if required), render the actual page!
+  const isAllowed = isAuthenticated && (!requireVerifiedStudent || isVerifiedStudent);
+
+  if (isAllowed) {
+    return <>{children}</>;
+  }
+
+  return (
+    <div className="min-h-[80vh] flex items-center justify-center p-4 relative overflow-hidden bg-[#FAFAFA]">
+      {/* Background ambient light */}
+      <div className="absolute inset-0 pointer-events-none overflow-hidden">
+        <div className="absolute top-1/4 left-1/2 -translate-x-1/2 w-96 h-96 bg-orange-200/30 rounded-full blur-3xl opacity-60" />
+      </div>
+
+      <motion.div
+        initial={{ opacity: 0, scale: 0.95, y: 20 }}
+        animate={{ opacity: 1, scale: 1, y: 0 }}
+        transition={{ duration: 0.4 }}
+        className="relative z-10 w-full max-w-lg bg-white border border-[#E5E7EB] rounded-3xl shadow-xl p-8 sm:p-10 text-center"
+      >
+        {/* Lock / Shield Icon */}
+        <div className="w-20 h-20 rounded-3xl bg-orange-50 border border-orange-200 flex items-center justify-center mx-auto mb-6 shadow-sm">
+          {requireVerifiedStudent ? (
+            <ShieldCheck className="w-10 h-10 text-[#F97316]" />
+          ) : (
+            <ShieldAlert className="w-10 h-10 text-[#F97316]" />
+          )}
+        </div>
+
+        {/* Feature Title */}
+        <div className="inline-flex items-center gap-2 px-3.5 py-1.5 rounded-full bg-orange-50 text-[#F97316] text-xs font-semibold mb-3 border border-orange-200">
+          <Sparkles className="w-3.5 h-3.5" /> Authentication Required
+        </div>
+
+        <h1
+          className="text-2xl sm:text-3xl font-bold text-[#1E293B] mb-3"
+          style={{ fontFamily: 'Playfair Display, serif' }}
+        >
+          {title}
+        </h1>
+
+        <p
+          className="text-slate-600 text-sm mb-8 leading-relaxed max-w-md mx-auto"
+          style={{ fontFamily: 'Inter, sans-serif' }}
+        >
+          {!isAuthenticated ? (
+            <>
+              {description} Sign in with your Google account to access this feature.
+            </>
+          ) : (
+            <>
+              You are signed in as <strong>{user?.email}</strong>. This feature is restricted to verified students with an <strong className="text-[#F97316]">@ritchennai.edu.in</strong> college email.
+            </>
+          )}
+        </p>
+
+        {/* Action Button */}
+        <div className="space-y-3">
+          <motion.button
+            whileHover={{ scale: 1.02 }}
+            whileTap={{ scale: 0.98 }}
+            onClick={loginWithGoogle}
+            className="w-full flex items-center justify-center gap-2.5 px-6 py-4 rounded-2xl text-white font-semibold text-sm shadow-lg shadow-orange-500/25 cursor-pointer"
+            style={{
+              background: 'linear-gradient(135deg, #F97316, #FB923C)',
+              fontFamily: 'Poppins, sans-serif',
+            }}
+          >
+            <LogIn className="w-5 h-5" />
+            {!isAuthenticated ? 'Sign In with Google to Unlock' : 'Switch to @ritchennai.edu.in Account'}
+          </motion.button>
+
+          <p className="text-[11px] text-slate-400">
+            Sign-in is quick, secure, and preserves your student privacy.
+          </p>
+        </div>
+      </motion.div>
+    </div>
+  );
+}