chore(pom): set Java version to 17 for local compatibility

backend/pom.xml

@@ -27,7 +27,7 @@
         <url/>
     </scm>
     <properties>
-        <java.version>21</java.version>
+        <java.version>17</java.version>
     </properties>
     <dependencies>
         <!-- Web MVC starter for building REST APIs -->

src/constants/index.ts

@@ -44,7 +44,7 @@ export const FEATURES: Feature[] = [
     icon: 'Map',
     title: 'Campus Map',
     description: 'Explore RIT campus interactively – find departments, labs, library, canteen, and facilities.',
-    path: '/campus',
+    path: '/campus?tab=map',
     color: '#10B981',
     bgColor: '#ECFDF5',
   },
@@ -53,7 +53,7 @@ export const FEATURES: Feature[] = [
     icon: 'Bus',
     title: 'Bus Routes',
     description: 'View all campus bus routes, timings, and pickup locations at a glance.',
-    path: '/campus',
+    path: '/campus?tab=bus',
     color: '#3B82F6',
     bgColor: '#EFF6FF',
   },
@@ -62,7 +62,7 @@ export const FEATURES: Feature[] = [
     icon: 'UserCheck',
     title: 'Faculty Directory',
     description: 'Find faculty contact details, department, designation, and office hours.',
-    path: '/campus',
+    path: '/campus?tab=faculty',
     color: '#EC4899',
     bgColor: '#FDF2F8',
   },

src/pages/Campus/Campus.tsx

@@ -7,12 +7,17 @@ import FacultyCard from '@/components/FacultyCard/FacultyCard';
 import { StaggerContainer, StaggerItem } from '@/components/AnimatedContainer/AnimatedContainer';
 import { FACULTY_DATA, CAMPUS_LOCATIONS, DEPARTMENTS } from '@/constants';
 import * as LucideIcons from 'lucide-react';
+import { useLocation } from 'react-router-dom';
 import type { BusRoute } from '@/types';
 
 type Tab = 'map' | 'bus' | 'faculty';
 
 export default function Campus() {
-  const [activeTab, setActiveTab] = useState<Tab>('map');
+  const location = useLocation();
+  const queryTab = new URLSearchParams(location.search).get('tab') as Tab;
+  const [activeTab, setActiveTab] = useState<Tab>(
+    queryTab === 'map' || queryTab === 'bus' || queryTab === 'faculty' ? queryTab : 'map'
+  );
   const [searchFaculty, setSearchFaculty] = useState('');
   const [selectedDept, setSelectedDept] = useState('All Departments');
   const [sortBy, setSortBy] = useState('Name A-Z');
@@ -20,6 +25,14 @@ export default function Campus() {
   const [busRoutes, setBusRoutes] = useState<BusRoute[]>([]);
   const [loadingBus, setLoadingBus] = useState(true);
 
+  // Sync tab state when URL query parameter changes
+  useEffect(() => {
+    const qTab = new URLSearchParams(location.search).get('tab') as Tab;
+    if (qTab === 'map' || qTab === 'bus' || qTab === 'faculty') {
+      setActiveTab(qTab);
+    }
+  }, [location.search]);
+
   useEffect(() => {
     if (activeTab === 'bus' && busRoutes.length === 0) {
       setLoadingBus(true);