diff --git a/App.js b/App.js
index 222b6a0..9efbd46 100644
--- a/App.js
+++ b/App.js
@@ -9,6 +9,7 @@ import TeamScreen from "./src/components/screens/TeamScreen";
 import MapScreen from "./src/components/screens/MapScreen";
 import LeaderboardScreen from "./src/components/screens/LeaderboardScreen";
 import GameSettingsScreen from "./src/components/screens/GameSettingsScreen";
+import DepartmentSettingsScreen from "./src/components/screens/DepartmentSettingsScreen";
 import PlayersScreen from "./src/components/screens/PlayersScreen";
 import ExpandedMapScreen from "./src/components/screens/ExpandedMapScreen";
 import {loadSession} from "./src/hooks/SessionStore";
@@ -43,6 +44,7 @@ const GameStack = () => (
 const AdminStack = () => (
     <AdminStackNav.Navigator screenOptions={screenOptions}>
         <AdminStackNav.Screen name="GameSettingsScreen" component={GameSettingsScreen}/>
+        <AdminStackNav.Screen name="DepartmentSettingsScreen" component={DepartmentSettingsScreen}/>
         <AdminStackNav.Screen name="MapScreen" component={MapScreen}/>
         <AdminStackNav.Screen name="LeaderboardScreen" component={LeaderboardScreen}/>
         <AdminStackNav.Screen name="PlayersScreen" component={PlayersScreen}/>
diff --git a/assets/icons/Leaderboard-icon.png b/assets/icons/Leaderboard-icon.png
new file mode 100644
index 0000000..e04806b
Binary files /dev/null and b/assets/icons/Leaderboard-icon.png differ
diff --git a/assets/icons/Map-icon.png b/assets/icons/Map-icon.png
new file mode 100644
index 0000000..51d6f8a
Binary files /dev/null and b/assets/icons/Map-icon.png differ
diff --git a/assets/icons/Teams-icon.png b/assets/icons/Teams-icon.png
new file mode 100644
index 0000000..8ca3dfc
Binary files /dev/null and b/assets/icons/Teams-icon.png differ
diff --git a/assets/icons/settings-icon.png b/assets/icons/settings-icon.png
new file mode 100644
index 0000000..94ef7da
Binary files /dev/null and b/assets/icons/settings-icon.png differ
diff --git a/src/components/UI/Card.js b/src/components/UI/Card.js
index 22d6d3f..e248505 100644
--- a/src/components/UI/Card.js
+++ b/src/components/UI/Card.js
@@ -13,12 +13,12 @@ const Card = ({children, style}) => {
 
 const styles = StyleSheet.create({
     card: {
-        backgroundColor: '#ffffff',
+        backgroundColor: '#313244',
         borderRadius: 8,
         padding: 12,
         marginBottom: 8,
         borderWidth: 1,
-        borderColor: '#e5e7eb',
+        borderColor: '#45475a',
     },
 });
 
diff --git a/src/components/gameplay/CacheCardItem.js b/src/components/gameplay/CacheCardItem.js
index 519fb1e..f890da1 100644
--- a/src/components/gameplay/CacheCardItem.js
+++ b/src/components/gameplay/CacheCardItem.js
@@ -2,31 +2,28 @@ import {StyleSheet, Text, View} from 'react-native';
 import Card from '../UI/Card';
 import {Button} from '../UI/Button';
 
-const CacheCardItem = ({cache, isAdmin, isClaimed, isSelected, onEdit, onDelete, onSelect, disabled}) => {
-//   Initialisation -------------
+const CacheCardItem = ({cache, isAdmin, isClaimed, isSelected, onEdit, onDelete, onSelect, disabled, departmentName}) => {
+  // Display name fallback for cache without a name
+  const displayName = cache.name || cache.clue || 'Unnamed Cache';
 
-    const displayName = cache.name || cache.clue || 'Unnamed Cache';
-
-//   State ----------------------
-//   Handlers -------------------
-//   View -----------------------
-
-    return (
-        <Card style={[isSelected && styles.selectedCard, isClaimed && styles.claimedCard, disabled && styles.disabledCard]}>
-            <View style={styles.topRow}>
-                <View style={styles.nameWrap}>
-                    <Text style={[styles.name, isClaimed && styles.claimedText, disabled && styles.disabledText]} numberOfLines={1}>{displayName}</Text>
-                    {cache.name ? (
-                        <Text style={styles.clue} numberOfLines={1}>{cache.clue}</Text>
-                    ) : null}
-                </View>
-                {/* Players see team-specific claim status; admins see no status */}
-                {!isAdmin && !disabled && (
-                    <Text style={[styles.status, {color: isClaimed ? '#9ca3af' : '#16a34a'}]}>
-                        {isClaimed ? 'Claimed' : 'Available'}
-                    </Text>
-                )}
-            </View>
+  return (
+    <Card style={[isSelected && styles.selectedCard, isClaimed && styles.claimedCard, disabled && styles.disabledCard]}>
+      <View style={styles.topRow}>
+        <View style={styles.nameWrap}>
+          <Text style={[styles.name, isClaimed && styles.claimedText, disabled && styles.disabledText]} numberOfLines={1}>{displayName}</Text>
+          {isAdmin && departmentName ? (
+            <Text style={styles.departmentText} numberOfLines={1}>Department: {departmentName}</Text>
+          ) : null}
+          {cache.name ? (
+            <Text style={styles.clue} numberOfLines={1}>{cache.clue}</Text>
+          ) : null}
+        </View>
+        {!isAdmin && !disabled && (
+          <Text style={[styles.status, {color: isClaimed ? '#585b70' : '#a6e3a1'}]}>
+            {isClaimed ? 'Claimed' : 'Available'}
+          </Text>
+        )}
+      </View>
             <View style={styles.actions}>
                 {isAdmin ? (
                     <>
@@ -86,54 +83,55 @@ const styles = StyleSheet.create({
         alignItems: 'center',
         marginBottom: 8,
     },
-    clue: {fontSize: 13, color: '#6b7280', marginTop: 2},
+    clue: {fontSize: 13, color: '#9ca3af', marginTop: 2},
+    departmentText: {fontSize: 13, color: '#bd93f9', marginTop: 2, fontWeight: '600'},
     nameWrap: {flex: 1, marginRight: 8},
-    name: {fontSize: 15, fontWeight: '600', color: '#1f2937'},
-    claimedText: {color: '#9ca3af'},
+    name: {fontSize: 15, fontWeight: '600', color: '#cdd6f4'},
+    claimedText: {color: '#6c7086'},
     status: {fontSize: 13, fontWeight: '600'},
     actions: {flexDirection: 'row', gap: 8},
     editBtn: {
-        backgroundColor: '#2563eb',
-        borderColor: '#2563eb',
+        backgroundColor: '#bd93f9',
+        borderColor: '#bd93f9',
         minHeight: 36,
         paddingHorizontal: 14,
         flex: 1,
     },
     deleteBtn: {
-        backgroundColor: '#dc2626',
-        borderColor: '#dc2626',
+        backgroundColor: '#D92800',
+        borderColor: '#D92800',
         minHeight: 36,
         paddingHorizontal: 14,
         flex: 1,
     },
     selectBtn: {
-        backgroundColor: '#16a34a',
-        borderColor: '#16a34a',
+        backgroundColor: '#a6e3a1',
+        borderColor: '#a6e3a1',
         minHeight: 36,
         paddingHorizontal: 14,
         flex: 1,
     },
     selectedBtn: {
-        backgroundColor: '#6b7280',
-        borderColor: '#6b7280',
+        backgroundColor: '#6c7086',
+        borderColor: '#6c7086',
         minHeight: 36,
         paddingHorizontal: 14,
         flex: 1,
     },
     claimedBtn: {
-        backgroundColor: '#d1d5db',
-        borderColor: '#d1d5db',
+        backgroundColor: '#45475a',
+        borderColor: '#45475a',
         minHeight: 36,
         paddingHorizontal: 14,
         flex: 1,
     },
-    claimedBtnLabel: {color: '#6b7280', fontWeight: '600', fontSize: 13},
-    selectedBtnLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    selectedCard: {borderColor: '#2563eb', borderWidth: 2},
+    claimedBtnLabel: {color: '#6c7086', fontWeight: '600', fontSize: 13},
+    selectedBtnLabel: {color: '#cdd6f4', fontWeight: '600', fontSize: 13},
+    selectedCard: {borderColor: '#bd93f9', borderWidth: 2},
     claimedCard: {opacity: 0.5},
     disabledCard: {opacity: 0.45},
-    disabledText: {color: '#9ca3af'},
-    btnLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
+    disabledText: {color: '#6c7086'},
+    btnLabel: {color: '#cdd6f4', fontWeight: '600', fontSize: 13},
 });
 
 export default CacheCardItem;
diff --git a/src/components/gameplay/ClaimTimerView.js b/src/components/gameplay/ClaimTimerView.js
index 6c97e29..45b8c0f 100644
--- a/src/components/gameplay/ClaimTimerView.js
+++ b/src/components/gameplay/ClaimTimerView.js
@@ -3,15 +3,11 @@ import {StyleSheet, Text, View} from 'react-native';
 import {CACHE_CLAIM_TIMER} from '../../utils/geoMath';
 
 const ClaimTimerView = ({ cache, onClaimSuccess, isClaiming, showClaimedPopup }) => {
-//   Initialisation -------------
-//   State ----------------------
-
   const [timeLeft, setTimeLeft] = useState(CACHE_CLAIM_TIMER);
   // Use a ref for the callback so it does not appear in the dependency array
   const onClaimRef = useRef(onClaimSuccess);
   onClaimRef.current = onClaimSuccess;
 
-//   Handlers -------------------
 
   useEffect(() => {
     let timer;
@@ -25,7 +21,6 @@ const ClaimTimerView = ({ cache, onClaimSuccess, isClaiming, showClaimedPopup })
     return () => clearTimeout(timer);
   }, [isClaiming, timeLeft, cache]);
 
-//   View -----------------------
 
   // Show "Cache Claimed!" popup after a successful claim
   if (showClaimedPopup) {
@@ -50,27 +45,27 @@ const ClaimTimerView = ({ cache, onClaimSuccess, isClaiming, showClaimedPopup })
 const styles = StyleSheet.create({
   overlay: {
     alignSelf: 'center',
-    backgroundColor: 'rgba(0,0,0,0.75)',
+    backgroundColor: 'rgba(0, 0, 0, 0.75)',
     paddingHorizontal: 16,
     paddingVertical: 12,
     borderRadius: 10,
     marginTop: 8,
   },
   text: {
-    color: '#ffffff',
+    color: '#cdd6f4',
     fontSize: 16,
     fontWeight: '700',
   },
   claimedOverlay: {
     alignSelf: 'center',
-    backgroundColor: '#16a34a',
+    backgroundColor: '#a6e3a1',
     paddingHorizontal: 20,
     paddingVertical: 14,
     borderRadius: 10,
     marginTop: 8,
   },
   claimedText: {
-    color: '#ffffff',
+    color: '#1e1e2e',
     fontSize: 18,
     fontWeight: '700',
   },
diff --git a/src/components/layout/BottomNavbar.js b/src/components/layout/BottomNavbar.js
index 3838578..85c96d7 100644
--- a/src/components/layout/BottomNavbar.js
+++ b/src/components/layout/BottomNavbar.js
@@ -3,17 +3,29 @@ import {useSafeAreaInsets} from 'react-native-safe-area-context';
 import {clearGameSession, getSession} from '../../hooks/SessionStore';
 import API, {API_BASE_URL} from '../API/API';
 
-const BottomNavbar = ({navigation, routeName}) => {
+const BottomNavbar = ({navigation, routeName, routeParams}) => {
 //   Initialisation ------------
 
     const insets = useSafeAreaInsets();
     const session = getSession();
 
+    const selectedDepartment = routeName === 'DepartmentSettingsScreen' && routeParams?.SGid
+        ? {SGid: routeParams.SGid, SubGroupName: routeParams.SubGroupName || routeParams.selectedDepartmentName || 'Department'}
+        : null;
+
     const adminTabs = [
         {label: 'Settings', route: 'GameSettingsScreen', onPress: () => navigation.navigate('GameSettingsScreen')},
         {label: 'Map', route: 'MapScreen', onPress: () => navigation.navigate('MapScreen')},
-        {label: 'Players', route: 'PlayersScreen', onPress: () => navigation.navigate('PlayersScreen')},
-        {label: 'Leaderboard', route: 'LeaderboardScreen', onPress: () => navigation.navigate('LeaderboardScreen')},
+        {
+            label: 'Players',
+            route: 'PlayersScreen',
+            onPress: () => navigation.navigate('PlayersScreen', selectedDepartment ? {department: selectedDepartment} : undefined),
+        },
+        {
+            label: 'Leaderboard',
+            route: 'LeaderboardScreen',
+            onPress: () => navigation.navigate('LeaderboardScreen', selectedDepartment ? {department: selectedDepartment} : undefined),
+        },
     ];
 
     // Only show the Leave tab when the player is actually in a game
@@ -78,8 +90,8 @@ const styles = StyleSheet.create({
     container: {
         minHeight: 64,
         borderTopWidth: 1,
-        borderTopColor: '#555555',
-        backgroundColor: '#4a4a4a',
+        borderTopColor: '#45475a',
+        backgroundColor: '#313244',
         flexDirection: 'row',
         alignItems: 'center',
         justifyContent: 'space-around',
@@ -91,26 +103,25 @@ const styles = StyleSheet.create({
         alignItems: 'center',
         justifyContent: 'center',
         paddingVertical: 12,
-        borderRadius: 8,
         marginHorizontal: 4,
     },
     tabActive: {
-        backgroundColor: '#5c5c5c',
+        backgroundColor: '#45475a',
     },
     tabLeave: {
-        backgroundColor: 'rgba(220,38,38,0.15)',
+        backgroundColor: 'rgba(243, 139, 168, 0.15)',
     },
     tabText: {
-        color: '#d1d5db',
+        color: '#bac2de',
         fontSize: 12,
         fontWeight: '600',
         textAlign: 'center',
     },
     tabTextActive: {
-        color: '#ffffff',
+        color: '#cdd6f4',
     },
     tabTextLeave: {
-        color: '#fca5a5',
+        color: '#D92800',
     },
 });
 
diff --git a/src/components/layout/Screen.js b/src/components/layout/Screen.js
index 947fd9f..988a25a 100644
--- a/src/components/layout/Screen.js
+++ b/src/components/layout/Screen.js
@@ -17,6 +17,7 @@ const Screen = ({ children, style, showBack = false }) => {
     TeamScreen: "Current Team",
     MapScreen: "Map",
     GameSettingsScreen: "Game Settings",
+    DepartmentSettingsScreen: "Department Settings",
     PlayersScreen: "Players",
     ExpandedMapScreen: "Map View",
   };
@@ -34,7 +35,7 @@ const Screen = ({ children, style, showBack = false }) => {
     <View style={[styles.screen, isAuthScreen && {paddingTop: insets.top, paddingBottom: insets.bottom}]}>
       {!isAuthScreen && <TopNavbar title={pageTitle} showBack={showBack} navigation={navigation} />}
       <View style={[styles.content, style]}>{children}</View>
-      {!isAuthScreen && <BottomNavbar navigation={navigation} routeName={routeName} />}
+      {!isAuthScreen && <BottomNavbar navigation={navigation} routeName={routeName} routeParams={route.params} />}
       <StatusBar style="light" />
     </View>
   );
@@ -43,13 +44,13 @@ const Screen = ({ children, style, showBack = false }) => {
 const styles = StyleSheet.create({
   screen: {
     flex: 1,
-    backgroundColor: "#fff",
+    backgroundColor: '#1e1e2e',
   },
   content: {
     flex: 1,
     padding: 15,
     zIndex: 1,
-    overflow: "hidden",
+    overflow: 'hidden',
   },
 });
 
diff --git a/src/components/layout/TopNavbar.js b/src/components/layout/TopNavbar.js
index d39a291..b7bdd91 100644
--- a/src/components/layout/TopNavbar.js
+++ b/src/components/layout/TopNavbar.js
@@ -47,12 +47,12 @@ const styles = StyleSheet.create({
     container: {
         minHeight: 56,
         borderBottomWidth: 1,
-        borderBottomColor: '#333333',
+        borderBottomColor: '#45475a',
         flexDirection: 'row',
         alignItems: 'center',
         justifyContent: 'space-between',
         paddingHorizontal: 12,
-        backgroundColor: '#000000',
+        backgroundColor: '#313244',
         zIndex: 10,
     },
     leftSlot: {
diff --git a/src/components/screens/DepartmentSettingsScreen.js b/src/components/screens/DepartmentSettingsScreen.js
new file mode 100644
index 0000000..1d6824a
--- /dev/null
+++ b/src/components/screens/DepartmentSettingsScreen.js
@@ -0,0 +1,224 @@
+import React, {useEffect, useState} from 'react';
+import {ActivityIndicator, Alert, ScrollView, StyleSheet, Switch, Text, TextInput, View} from 'react-native';
+import Screen from '../layout/Screen';
+import {Button, ButtonTray} from '../UI/Button';
+import useGameHook from '../../hooks/useGameHook';
+
+const DepartmentSettingsScreen = ({route, navigation}) => {
+  const {SGid, Gid} = route.params;
+  const {getSubgroup, updateSubgroup, getCaches, resetGame} = useGameHook();
+
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [deptName, setDeptName] = useState('');
+  const [joinCode, setJoinCode] = useState('');
+  const [teamsEnabled, setTeamsEnabled] = useState(false);
+  const [cacheTriggerMeters, setCacheTriggerMeters] = useState('20');
+  const [cacheCount, setCacheCount] = useState(0);
+
+//   Handlers -------------------
+
+  useEffect(() => {
+    const load = async () => {
+      const sg = await getSubgroup(SGid);
+      if (sg) {
+        setDeptName(sg.SubGroupName || '');
+        setJoinCode(sg.JoinCode || '');
+        setTeamsEnabled(Boolean(sg.TeamsEnabled));
+        setCacheTriggerMeters(String(sg.CacheTriggerMeters || 20));
+      }
+      // Load cache count for this department
+      const caches = await getCaches(Gid, SGid);
+      setCacheCount((caches || []).length);
+      setLoading(false);
+    };
+    load();
+  }, []);
+
+    const handleSave = async () => {
+        setSaving(true);
+        await updateSubgroup(SGid, {
+            SubGroupName: deptName.trim(),
+            TeamsEnabled: teamsEnabled,
+            CacheTriggerMeters: parseInt(cacheTriggerMeters) || 20,
+        });
+        setSaving(false);
+        Alert.alert('Saved', 'Department settings updated.');
+    };
+
+    const handleResetDepartment = () => {
+        Alert.alert(
+            'Reset Department',
+            'This will reset all cache claims for this department. Are you sure?',
+            [
+                {text: 'Cancel', style: 'cancel'},
+                {
+                    text: 'Reset',
+                    style: 'destructive',
+                    onPress: async () => {
+                        await resetGame(Gid, SGid);
+                        Alert.alert('Done', 'Department progress has been reset.');
+                    },
+                },
+            ],
+        );
+    };
+
+    const handleManageCaches = () => {
+        navigation.navigate('MapScreen', {
+            selectedDepartmentSGid: SGid,
+            selectedDepartmentName: deptName || null,
+        });
+    };
+
+//   View -----------------------
+
+    if (loading) {
+        return (
+            <Screen showBack={true} style={styles.center}>
+                <ActivityIndicator size="large"/>
+            </Screen>
+        );
+    }
+
+    return (
+        <Screen showBack={true}>
+            <ScrollView contentContainerStyle={styles.formContainer} showsVerticalScrollIndicator={false}>
+                <Text style={styles.sectionTitle}>Department Settings</Text>
+
+                <Text style={styles.label}>Department Name</Text>
+                <TextInput
+                    style={styles.input}
+                    value={deptName}
+                    onChangeText={setDeptName}
+                    placeholder="Enter department name"
+                    placeholderTextColor="#9ca3af"
+                />
+
+                <View style={styles.codeSection}>
+                    <Text style={styles.codeLabel}>Department Join Code</Text>
+                    <Text style={styles.codeValue}>{joinCode || '—'}</Text>
+                </View>
+
+                <View style={styles.toggleRow}>
+                    <Text style={styles.toggleLabel}>Teams Enabled</Text>
+                    <Switch
+                        value={teamsEnabled}
+                        onValueChange={setTeamsEnabled}
+                        trackColor={{false: '#d1d5db', true: '#93c5fd'}}
+                        thumbColor={teamsEnabled ? '#2563eb' : '#9ca3af'}
+                    />
+                </View>
+
+                <Text style={styles.label}>Cache Claim Distance (metres)</Text>
+                <TextInput
+                    style={styles.input}
+                    value={cacheTriggerMeters}
+                    onChangeText={setCacheTriggerMeters}
+                    keyboardType="numeric"
+                    placeholder="20"
+                    placeholderTextColor="#9ca3af"
+                />
+
+                <View style={styles.infoRow}>
+                    <Text style={styles.infoLabel}>Total Caches</Text>
+                    <Text style={styles.infoValue}>{cacheCount}</Text>
+                </View>
+
+                <View style={styles.saveWrap}>
+                    <ButtonTray>
+                        <Button
+                            label={saving ? 'Saving...' : 'Save Settings'}
+                            onClick={handleSave}
+                            styleButton={styles.saveButton}
+                            styleLabel={styles.saveLabel}
+                        />
+                    </ButtonTray>
+                </View>
+
+                <View style={styles.mapWrap}>
+                    <ButtonTray>
+                        <Button
+                            label="Manage Caches"
+                            onClick={handleManageCaches}
+                            styleButton={styles.mapButton}
+                            styleLabel={styles.mapLabel}
+                        />
+                    </ButtonTray>
+                </View>
+
+                <View style={styles.resetWrap}>
+                    <Button
+                        label="Reset Department"
+                        onClick={handleResetDepartment}
+                        styleButton={styles.resetButton}
+                        styleLabel={styles.resetLabel}
+                    />
+                </View>
+            </ScrollView>
+        </Screen>
+    );
+};
+
+const styles = StyleSheet.create({
+    center: {justifyContent: 'center', alignItems: 'center'},
+    formContainer: {paddingBottom: 20},
+    sectionTitle: {fontSize: 20, fontWeight: '700', color: '#cdd6f4', marginBottom: 16},
+    label: {fontSize: 14, fontWeight: '600', color: '#bac2de', marginBottom: 6, marginTop: 14},
+    input: {
+        borderWidth: 1,
+        borderColor: '#45475a',
+        borderRadius: 8,
+        paddingHorizontal: 12,
+        paddingVertical: 10,
+        fontSize: 16,
+        color: '#cdd6f4',
+        backgroundColor: '#313244',
+    },
+    codeSection: {
+        flexDirection: 'row',
+        justifyContent: 'space-between',
+        alignItems: 'center',
+        marginTop: 16,
+        paddingVertical: 12,
+        paddingHorizontal: 12,
+        backgroundColor: '#313244',
+        borderRadius: 8,
+    },
+    codeLabel: {fontSize: 14, fontWeight: '600', color: '#bac2de'},
+    codeValue: {fontSize: 16, fontWeight: '700', color: '#bd93f9', letterSpacing: 2},
+    toggleRow: {
+        flexDirection: 'row',
+        justifyContent: 'space-between',
+        alignItems: 'center',
+        marginTop: 16,
+        paddingVertical: 10,
+        borderBottomWidth: 1,
+        borderBottomColor: '#45475a',
+    },
+    toggleLabel: {fontSize: 14, fontWeight: '600', color: '#bac2de'},
+    infoRow: {
+        flexDirection: 'row',
+        justifyContent: 'space-between',
+        alignItems: 'center',
+        marginTop: 16,
+        paddingVertical: 12,
+        paddingHorizontal: 12,
+        backgroundColor: '#313244',
+        borderRadius: 8,
+    },
+    infoLabel: {fontSize: 14, fontWeight: '600', color: '#bac2de'},
+    infoValue: {fontSize: 16, fontWeight: '700', color: '#cdd6f4'},
+    saveWrap: {marginTop: 24},
+    saveButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1'},
+    saveLabel: {color: '#1e1e2e', fontWeight: '600'},
+    mapWrap: {marginTop: 16},
+    mapButton: {backgroundColor: '#bd93f9', borderColor: '#bd93f9'},
+    mapLabel: {color: '#1e1e2e', fontWeight: '600'},
+    resetWrap: {marginTop: 30},
+    resetButton: {backgroundColor: '#86efac', borderColor: '#86efac'},
+    resetLabel: {color: '#1e1e2e', fontWeight: '600'},
+});
+
+export default DepartmentSettingsScreen;
+
diff --git a/src/components/screens/GameSettingsScreen.js b/src/components/screens/GameSettingsScreen.js
index 547ac09..ad6593a 100644
--- a/src/components/screens/GameSettingsScreen.js
+++ b/src/components/screens/GameSettingsScreen.js
@@ -1,94 +1,163 @@
-import React, {useEffect, useState} from 'react';
+import React, {useCallback, useEffect, useRef, useState} from 'react';
 import {ActivityIndicator, Alert, ScrollView, StyleSheet, Switch, Text, TextInput, View} from 'react-native';
+import {useFocusEffect} from '@react-navigation/native';
 import Screen from '../layout/Screen';
 import Card from '../UI/Card';
 import {Button, ButtonTray} from '../UI/Button';
 import useGameHook from '../../hooks/useGameHook';
 import {getSession, setSessionTeamsEnabled} from '../../hooks/SessionStore';
 
-const GameSettingsScreen = () => {
-//   Initialisation ------------
+const GameSettingsScreen = ({navigation}) => {
+  const session = getSession();
+  const {getLobby, updateGroup, getSubgroups, createSubgroup, deleteSubgroup, resetGame, getAdminWaitlist, approveAdmin, rejectAdmin, getUser, disbandTeams} = useGameHook();
+  const gameApiRef = useRef({
+    getLobby,
+    getSubgroups,
+    getAdminWaitlist,
+    getUser,
+  });
+  gameApiRef.current = {
+    getLobby,
+    getSubgroups,
+    getAdminWaitlist,
+    getUser,
+  };
+  const isMountedRef = useRef(true);
+  const isRefreshingRef = useRef(false);
+  const hasHydratedRef = useRef(false);
 
-    const session = getSession();
-    const {getLobby, updateGroup, getSubgroups, createSubgroup, updateSubgroup, deleteSubgroup, resetGame, getAdminWaitlist, approveAdmin, rejectAdmin, getUser} = useGameHook();
-    const isBusiness = Boolean(session.isBusiness);
-
-//   State ----------------------
-
-    const [loading, setLoading] = useState(true);
-    const [saving, setSaving] = useState(false);
-    const [groupName, setGroupName] = useState('');
-    const [teamsEnabled, setTeamsEnabled] = useState(session.teamsEnabled);
-    const [cacheTriggerMeters, setCacheTriggerMeters] = useState('20');
-    const [adminJoinCode, setAdminJoinCode] = useState('');
-    const [memberJoinCode, setMemberJoinCode] = useState('');
-    const [waitlist, setWaitlist] = useState([]);
-    const [waitlistNames, setWaitlistNames] = useState({});
-    // Business subgroup management
-    const [subgroupList, setSubgroupList] = useState([]);
-    const [newDeptName, setNewDeptName] = useState('');
-    const [editingSGid, setEditingSGid] = useState(null);
-    const [editDeptTrigger, setEditDeptTrigger] = useState('20');
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [groupName, setGroupName] = useState('');
+  const [businessName, setBusinessName] = useState('');
+  const [teamsEnabled, setTeamsEnabled] = useState(session.teamsEnabled);
+  const [serverTeamsEnabled, setServerTeamsEnabled] = useState(session.teamsEnabled);
+  const [cacheTriggerMeters, setCacheTriggerMeters] = useState('20');
+  const [adminJoinCode, setAdminJoinCode] = useState('');
+  const [orgJoinCode, setOrgJoinCode] = useState('');
+  const [memberJoinCode, setMemberJoinCode] = useState('');
+  const [waitlist, setWaitlist] = useState([]);
+  const [waitlistNames, setWaitlistNames] = useState({});
+  const [isBusinessGroup, setIsBusinessGroup] = useState(Boolean(session.isBusiness));
+  const [subgroupList, setSubgroupList] = useState([]);
+  const [newDeptName, setNewDeptName] = useState('');
 
 //   Handlers -------------------
 
-    const loadWaitlist = async () => {
-        if (!session.currentGid) return;
-        const rows = await getAdminWaitlist(session.currentGid);
-        setWaitlist(rows || []);
-        const names = {};
-        for (const entry of (rows || [])) {
-            const u = await getUser(entry.Uid);
-            if (u) names[entry.Uid] = u.username;
-        }
-        setWaitlistNames(names);
-    };
+  useEffect(() => () => {
+    isMountedRef.current = false;
+  }, []);
 
-    const loadSubgroups = async () => {
-        if (!session.currentGid) return;
-        const sgs = await getSubgroups(session.currentGid);
-        setSubgroupList(sgs || []);
-        // Set the default member join code from first non-admin subgroup
-        const memberSg = (sgs || []).find((sg) => !sg.IsAdminGroup);
-        if (memberSg) setMemberJoinCode(memberSg.JoinCode || '');
-    };
+  const refreshSettings = useCallback(async ({showLoader = false} = {}) => {
+    const activeSession = getSession();
+    if (!activeSession.currentGid) {
+      if (isMountedRef.current) setLoading(false);
+      return;
+    }
+
+    // Guard against re-entrant focus refresh calls.
+    if (isRefreshingRef.current) return;
+    isRefreshingRef.current = true;
+
+    if (showLoader && isMountedRef.current) setLoading(true);
+
+        try {
+            const [group, sgs, waitlistRows] = await Promise.all([
+                gameApiRef.current.getLobby(activeSession.currentGid),
+                gameApiRef.current.getSubgroups(activeSession.currentGid),
+                gameApiRef.current.getAdminWaitlist(activeSession.currentGid),
+            ]);
+
+            if (!isMountedRef.current) return;
 
-    useEffect(() => {
-        const load = async () => {
-            if (!session.currentGid) {
-                setLoading(false);
-                return;
-            }
-            const group = await getLobby(session.currentGid);
             if (group) {
                 setGroupName(group.GroupName || '');
+                setBusinessName(group.BusinessOrSchoolName || '');
+                // Organisation mode
+                setIsBusinessGroup(Boolean(group.BusinessOrSchoolName));
+
                 const serverTeams = Boolean(group.TeamsEnabled);
                 setTeamsEnabled(serverTeams);
-                // Keep session in sync so the toggle survives app reloads
+                setServerTeamsEnabled(serverTeams);
                 setSessionTeamsEnabled(serverTeams);
+
                 setCacheTriggerMeters(String(group.CacheTriggerMeters || 20));
                 setAdminJoinCode(group.AdminJoinCode || '');
+                setOrgJoinCode(group.OrgJoinCode || '');
             }
-            await loadSubgroups();
-            await loadWaitlist();
-            setLoading(false);
-        };
-        load();
+
+            setSubgroupList(sgs || []);
+            const memberSg = (sgs || []).find((sg) => !sg.IsAdminGroup);
+            setMemberJoinCode(memberSg?.JoinCode || '');
+
+            setWaitlist(waitlistRows || []);
+            const names = {};
+            for (const entry of (waitlistRows || [])) {
+                const user = await gameApiRef.current.getUser(entry.Uid);
+                if (user) names[entry.Uid] = user.username;
+            }
+            if (!isMountedRef.current) return;
+            setWaitlistNames(names);
+            hasHydratedRef.current = true;
+        } finally {
+            if (isMountedRef.current && (showLoader || !hasHydratedRef.current)) {
+                setLoading(false);
+            }
+            isRefreshingRef.current = false;
+        }
     }, []);
 
-    const handleSave = async () => {
-        if (!session.currentGid) return;
+    useFocusEffect(
+        useCallback(() => {
+            refreshSettings({showLoader: !hasHydratedRef.current});
+        }, [refreshSettings]),
+    );
+
+    // --- Individual save ---
+    const saveSettings = async () => {
         setSaving(true);
         const result = await updateGroup(session.currentGid, {
             GroupName: groupName.trim(),
             TeamsEnabled: teamsEnabled,
             CacheTriggerMeters: parseInt(cacheTriggerMeters) || 20,
         });
-        // Persist the new toggle value so the session reflects it after a reload
-        if (result) setSessionTeamsEnabled(teamsEnabled);
+        if (result) {
+            if (serverTeamsEnabled && !teamsEnabled) {
+                await disbandTeams(session.currentGid);
+            }
+            setSessionTeamsEnabled(teamsEnabled);
+            setServerTeamsEnabled(teamsEnabled);
+        }
         setSaving(false);
     };
 
+    const handleSave = async () => {
+        if (!session.currentGid) return;
+        // Business save — only save business name
+        if (isBusinessGroup) {
+            setSaving(true);
+            await updateGroup(session.currentGid, {
+                BusinessOrSchoolName: businessName.trim(),
+                GroupName: businessName.trim(),
+            });
+            setSaving(false);
+            return;
+        }
+        // Individual save — check teams toggle
+        if (serverTeamsEnabled && !teamsEnabled) {
+            Alert.alert(
+                'Disable Teams',
+                'This will disband all existing teams and remove all players from their teams. Continue?',
+                [
+                    {text: 'Cancel', style: 'cancel'},
+                    {text: 'Disable', style: 'destructive', onPress: saveSettings},
+                ],
+            );
+            return;
+        }
+        await saveSettings();
+    };
+
     const handleResetGame = () => {
         Alert.alert('Reset Entire Game', 'This will remove ALL saved caches and reset progress for every player. Are you sure?', [
             {text: 'Cancel', style: 'cancel'},
@@ -105,32 +174,27 @@ const GameSettingsScreen = () => {
 
     const handleApproveAdmin = async (entry) => {
         await approveAdmin(entry.id);
-        await loadWaitlist();
+        await refreshSettings();
     };
 
     const handleRejectAdmin = async (entry) => {
         await rejectAdmin(entry.id);
-        await loadWaitlist();
+        await refreshSettings();
     };
 
     // Business — create a new department (subgroup)
     const handleCreateDepartment = async () => {
-        if (!newDeptName.trim() || !session.currentGid) return;
+        const deptCount = subgroupList.filter((sg) => !sg.IsAdminGroup).length;
+        const name = newDeptName.trim() || `Department ${deptCount + 1}`;
+        if (!session.currentGid) return;
         await createSubgroup({
-            SubGroupName: newDeptName.trim(),
+            SubGroupName: name,
             Gid: session.currentGid,
             IsAdminGroup: false,
-            CacheTriggerMeters: parseInt(cacheTriggerMeters) || 20,
+            CacheTriggerMeters: 20,
         });
         setNewDeptName('');
-        await loadSubgroups();
-    };
-
-    // Business — save per-subgroup trigger distance
-    const handleSaveDeptTrigger = async (sgid) => {
-        await updateSubgroup(sgid, {CacheTriggerMeters: parseInt(editDeptTrigger) || 20});
-        setEditingSGid(null);
-        await loadSubgroups();
+        await refreshSettings();
     };
 
     // Business — delete a department
@@ -142,12 +206,21 @@ const GameSettingsScreen = () => {
                 style: 'destructive',
                 onPress: async () => {
                     await deleteSubgroup(sg.SGid);
-                    await loadSubgroups();
+                    await refreshSettings();
                 },
             },
         ]);
     };
 
+    // Business — navigate to department settings
+    const handleEnterDepartment = (sg) => {
+        navigation.navigate('DepartmentSettingsScreen', {
+            SGid: sg.SGid,
+            Gid: session.currentGid,
+            SubGroupName: sg.SubGroupName,
+        });
+    };
+
 //   View -----------------------
 
     if (loading) {
@@ -169,6 +242,144 @@ const GameSettingsScreen = () => {
     // Filter subgroups for the department list (non-admin only)
     const departments = subgroupList.filter((sg) => !sg.IsAdminGroup);
 
+    // ===== Business Admin View =====
+    if (isBusinessGroup) {
+        return (
+            <Screen>
+                <ScrollView contentContainerStyle={styles.formContainer} showsVerticalScrollIndicator={false}>
+                    <Text style={styles.sectionTitle}>Game Configuration :</Text>
+
+                    <Text style={styles.label}>Organisation Name:</Text>
+                    <TextInput
+                        style={styles.input}
+                        value={businessName}
+                        onChangeText={setBusinessName}
+                        placeholder="Enter organisation name"
+                        placeholderTextColor="#9ca3af"
+                    />
+
+                    <View style={styles.codeSection}>
+                        <Text style={styles.codeLabel}>Admin join code:</Text>
+                        <Text style={styles.codeValue}>{adminJoinCode || '—'}</Text>
+                    </View>
+
+                    <View style={styles.codeSection}>
+                        <Text style={styles.codeLabel}>Org join code:</Text>
+                        <Text style={styles.codeValue}>{orgJoinCode || '—'}</Text>
+                    </View>
+
+                    <View style={styles.saveWrap}>
+                        <ButtonTray>
+                            <Button
+                                label={saving ? 'Saving...' : 'Save Settings'}
+                                onClick={handleSave}
+                                styleButton={styles.saveButton}
+                                styleLabel={styles.saveLabel}
+                            />
+                        </ButtonTray>
+                    </View>
+
+                    {/* Departments List */}
+                    <View style={styles.deptSection}>
+                        <Text style={styles.sectionTitle}>Departments:</Text>
+                        {departments.map((sg, index) => (
+                            <Card key={sg.SGid}>
+                                <Text style={styles.deptIndexLabel}>Department {index + 1}:</Text>
+                                <View style={styles.deptCardRow}>
+                                    <View style={styles.deptCardInfo}>
+                                        <Text style={styles.deptInfoLabel}>Department Name</Text>
+                                        <Text style={styles.deptName}>{sg.SubGroupName}</Text>
+                                    </View>
+                                    <View style={styles.deptCardActions}>
+                                        <Button
+                                            label="Department Game"
+                                            onClick={() => handleEnterDepartment(sg)}
+                                            styleButton={styles.deptOpenButton}
+                                            styleLabel={styles.deptBtnLabel}
+                                        />
+                                    </View>
+                                </View>
+                                <View style={styles.deptCardRow}>
+                                    <View style={styles.deptCardInfo}>
+                                        <Text style={styles.deptInfoLabel}>Department Join code</Text>
+                                        <Text style={styles.deptCode}>{sg.JoinCode || '—'}</Text>
+                                    </View>
+                                    <View style={styles.deptCardActions}>
+                                        <Button
+                                            label="Delete Department"
+                                            onClick={() => handleDeleteDepartment(sg)}
+                                            styleButton={styles.deptDeleteButton}
+                                            styleLabel={styles.deptBtnLabel}
+                                        />
+                                    </View>
+                                </View>
+                            </Card>
+                        ))}
+                        {departments.length === 0 && (
+                            <Text style={styles.emptyText}>No departments yet.</Text>
+                        )}
+                        <View style={styles.createDeptRow}>
+                            <TextInput
+                                style={[styles.input, {flex: 1}]}
+                                value={newDeptName}
+                                onChangeText={setNewDeptName}
+                                placeholder="New department name"
+                                placeholderTextColor="#9ca3af"
+                            />
+                            <Button
+                                label="Add"
+                                onClick={handleCreateDepartment}
+                                styleButton={styles.createDeptButton}
+                                styleLabel={styles.createDeptLabel}
+                            />
+                        </View>
+                    </View>
+
+                    {/* Admin Waitlist */}
+                    {waitlist.length > 0 && (
+                        <View style={styles.waitlistSection}>
+                            <Text style={styles.sectionTitle}>Admin Waitlist</Text>
+                            {waitlist.map((entry) => (
+                                <Card key={entry.id}>
+                                    <View style={styles.waitlistRow}>
+                                        <Text style={styles.waitlistName}>
+                                            {waitlistNames[entry.Uid] || `User ${entry.Uid}`}
+                                        </Text>
+                                        <View style={styles.waitlistActions}>
+                                            <Button
+                                                label="Approve"
+                                                onClick={() => handleApproveAdmin(entry)}
+                                                styleButton={styles.approveButton}
+                                                styleLabel={styles.approveBtnLabel}
+                                            />
+                                            <Button
+                                                label="Reject"
+                                                onClick={() => handleRejectAdmin(entry)}
+                                                styleButton={styles.rejectButton}
+                                                styleLabel={styles.rejectBtnLabel}
+                                            />
+                                        </View>
+                                    </View>
+                                </Card>
+                            ))}
+                        </View>
+                    )}
+
+                    {/* Reset Entire Game */}
+                    <View style={styles.resetSection}>
+                        <Button
+                            label="Reset Entire Game"
+                            onClick={handleResetGame}
+                            styleButton={styles.resetButton}
+                            styleLabel={styles.resetLabel}
+                        />
+                    </View>
+                </ScrollView>
+            </Screen>
+        );
+    }
+
+    // ===== Individual Admin View =====
     return (
         <Screen>
             <ScrollView contentContainerStyle={styles.formContainer} showsVerticalScrollIndicator={false}>
@@ -209,7 +420,7 @@ const GameSettingsScreen = () => {
                 </View>
 
                 <View style={styles.codeSection}>
-                    <Text style={styles.codeLabel}>Player Join Code</Text>
+                    <Text style={styles.codeLabel}>Game Join Code</Text>
                     <Text style={styles.codeValue}>{memberJoinCode || '—'}</Text>
                 </View>
 
@@ -224,83 +435,6 @@ const GameSettingsScreen = () => {
                     </ButtonTray>
                 </View>
 
-                {/* Business: Departments / Subgroups management */}
-                {isBusiness && (
-                    <View style={styles.deptSection}>
-                        <Text style={styles.sectionTitle}>Departments</Text>
-                        {departments.map((sg) => (
-                            <Card key={sg.SGid}>
-                                <View style={styles.deptRow}>
-                                    <View style={styles.deptInfo}>
-                                        <Text style={styles.deptName}>{sg.SubGroupName}</Text>
-                                        <Text style={styles.deptCode}>Join Code: {sg.JoinCode || '—'}</Text>
-                                        <Text style={styles.deptTrigger}>Claim Distance: {sg.CacheTriggerMeters || 20}m</Text>
-                                    </View>
-                                    <View style={styles.deptActions}>
-                                        <Button
-                                            label="Edit"
-                                            onClick={() => { setEditingSGid(sg.SGid); setEditDeptTrigger(String(sg.CacheTriggerMeters || 20)); }}
-                                            styleButton={styles.deptEditButton}
-                                            styleLabel={styles.deptBtnLabel}
-                                        />
-                                        <Button
-                                            label="Delete"
-                                            onClick={() => handleDeleteDepartment(sg)}
-                                            styleButton={styles.deptDeleteButton}
-                                            styleLabel={styles.deptBtnLabel}
-                                        />
-                                    </View>
-                                </View>
-                                {editingSGid === sg.SGid && (
-                                    <View style={styles.deptEditRow}>
-                                        <Text style={styles.label}>Claim Distance (metres)</Text>
-                                        <TextInput
-                                            style={styles.input}
-                                            value={editDeptTrigger}
-                                            onChangeText={setEditDeptTrigger}
-                                            keyboardType="numeric"
-                                            placeholder="20"
-                                            placeholderTextColor="#9ca3af"
-                                        />
-                                        <ButtonTray>
-                                            <Button
-                                                label="Save"
-                                                onClick={() => handleSaveDeptTrigger(sg.SGid)}
-                                                styleButton={styles.deptSaveButton}
-                                                styleLabel={styles.deptBtnLabel}
-                                            />
-                                            <Button
-                                                label="Cancel"
-                                                onClick={() => setEditingSGid(null)}
-                                                styleButton={styles.deptCancelButton}
-                                                styleLabel={styles.deptBtnLabel}
-                                            />
-                                        </ButtonTray>
-                                    </View>
-                                )}
-                            </Card>
-                        ))}
-                        {departments.length === 0 && (
-                            <Text style={styles.emptyText}>No departments yet.</Text>
-                        )}
-                        <View style={styles.createDeptRow}>
-                            <TextInput
-                                style={[styles.input, {flex: 1}]}
-                                value={newDeptName}
-                                onChangeText={setNewDeptName}
-                                placeholder="New department name"
-                                placeholderTextColor="#9ca3af"
-                            />
-                            <Button
-                                label="Add"
-                                onClick={handleCreateDepartment}
-                                styleButton={styles.createDeptButton}
-                                styleLabel={styles.createDeptLabel}
-                            />
-                        </View>
-                    </View>
-                )}
-
                 {/* Admin Waitlist */}
                 {waitlist.length > 0 && (
                     <View style={styles.waitlistSection}>
@@ -348,18 +482,18 @@ const GameSettingsScreen = () => {
 const styles = StyleSheet.create({
     center: {justifyContent: 'center', alignItems: 'center'},
     formContainer: {paddingBottom: 20},
-    sectionTitle: {fontSize: 20, fontWeight: '700', color: '#1f2937', marginBottom: 16},
-    label: {fontSize: 14, fontWeight: '600', color: '#374151', marginBottom: 6, marginTop: 14},
-    body: {color: '#4b5563', fontSize: 15},
+    sectionTitle: {fontSize: 20, fontWeight: '700', color: '#cdd6f4', marginBottom: 16},
+    label: {fontSize: 14, fontWeight: '600', color: '#bac2de', marginBottom: 6, marginTop: 14},
+    body: {color: '#bac2de', fontSize: 15},
     input: {
         borderWidth: 1,
-        borderColor: '#d1d5db',
+        borderColor: '#45475a',
         borderRadius: 8,
         paddingHorizontal: 12,
         paddingVertical: 10,
         fontSize: 16,
-        color: '#1f2937',
-        backgroundColor: '#ffffff',
+        color: '#cdd6f4',
+        backgroundColor: '#313244',
     },
     toggleRow: {
         flexDirection: 'row',
@@ -368,9 +502,9 @@ const styles = StyleSheet.create({
         marginTop: 16,
         paddingVertical: 10,
         borderBottomWidth: 1,
-        borderBottomColor: '#e5e7eb',
+        borderBottomColor: '#45475a',
     },
-    toggleLabel: {fontSize: 14, fontWeight: '600', color: '#374151'},
+    toggleLabel: {fontSize: 14, fontWeight: '600', color: '#bac2de'},
     codeSection: {
         flexDirection: 'row',
         justifyContent: 'space-between',
@@ -378,48 +512,43 @@ const styles = StyleSheet.create({
         marginTop: 16,
         paddingVertical: 12,
         paddingHorizontal: 12,
-        backgroundColor: '#f3f4f6',
+        backgroundColor: '#313244',
         borderRadius: 8,
     },
-    codeLabel: {fontSize: 14, fontWeight: '600', color: '#374151'},
-    codeValue: {fontSize: 16, fontWeight: '700', color: '#2563eb', letterSpacing: 2},
+    codeLabel: {fontSize: 14, fontWeight: '600', color: '#bac2de'},
+    codeValue: {fontSize: 16, fontWeight: '700', color: '#bd93f9', letterSpacing: 2},
     saveWrap: {marginTop: 24},
-    saveButton: {backgroundColor: '#16a34a', borderColor: '#16a34a'},
-    saveLabel: {color: '#ffffff', fontWeight: '600'},
-    // Department / subgroup styles
+    saveButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1'},
+    saveLabel: {color: '#1e1e2e', fontWeight: '600'},
     deptSection: {marginTop: 30},
-    deptRow: {flexDirection: 'row', justifyContent: 'space-between', alignItems: 'flex-start'},
-    deptInfo: {flex: 1},
-    deptName: {fontSize: 15, fontWeight: '700', color: '#1f2937'},
-    deptCode: {fontSize: 13, fontWeight: '600', color: '#2563eb', marginTop: 2, letterSpacing: 1},
-    deptTrigger: {fontSize: 12, color: '#6b7280', marginTop: 2},
-    deptActions: {flexDirection: 'row', gap: 6},
-    deptEditButton: {backgroundColor: '#2563eb', borderColor: '#2563eb', minHeight: 36, flex: 0, paddingHorizontal: 10},
-    deptDeleteButton: {backgroundColor: '#dc2626', borderColor: '#dc2626', minHeight: 36, flex: 0, paddingHorizontal: 10},
-    deptBtnLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    deptEditRow: {marginTop: 10, paddingTop: 10, borderTopWidth: 1, borderTopColor: '#e5e7eb'},
-    deptSaveButton: {backgroundColor: '#16a34a', borderColor: '#16a34a'},
-    deptCancelButton: {backgroundColor: '#6b7280', borderColor: '#6b7280'},
+    deptIndexLabel: {fontSize: 14, fontWeight: '700', color: '#bac2de', marginBottom: 8},
+    deptCardRow: {flexDirection: 'row', justifyContent: 'space-between', alignItems: 'center', marginBottom: 8},
+    deptCardInfo: {flex: 1, paddingRight: 10},
+    deptCardActions: {flexDirection: 'row', gap: 6, flex: 0},
+    deptInfoLabel: {fontSize: 12, fontWeight: '600', color: '#6c7086', marginBottom: 2},
+    deptName: {fontSize: 15, fontWeight: '700', color: '#cdd6f4'},
+    deptCode: {fontSize: 13, fontWeight: '600', color: '#bd93f9', marginTop: 2, letterSpacing: 1},
+    deptDeleteButton: {backgroundColor: '#D92800', borderColor: '#D92800', minHeight: 36, flex: 0, paddingHorizontal: 10},
+    deptOpenButton: {backgroundColor: '#bd93f9', borderColor: '#bd93f9', minHeight: 36, flex: 0, paddingHorizontal: 10},
+    deptBtnLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
     createDeptRow: {flexDirection: 'row', gap: 10, marginTop: 12, alignItems: 'center'},
-    createDeptButton: {backgroundColor: '#16a34a', borderColor: '#16a34a', flex: 0, paddingHorizontal: 16},
-    createDeptLabel: {color: '#ffffff', fontWeight: '600'},
-    emptyText: {color: '#9ca3af', textAlign: 'center', marginTop: 10, fontSize: 14},
-    // Admin waitlist styles
+    createDeptButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1', flex: 0, paddingHorizontal: 16},
+    createDeptLabel: {color: '#1e1e2e', fontWeight: '600'},
+    emptyText: {color: '#6c7086', textAlign: 'center', marginTop: 10, fontSize: 14},
     waitlistSection: {marginTop: 30},
     waitlistRow: {
         flexDirection: 'row',
         justifyContent: 'space-between',
         alignItems: 'center',
     },
-    waitlistName: {fontSize: 15, fontWeight: '600', color: '#1f2937', flex: 1},
+    waitlistName: {fontSize: 15, fontWeight: '600', color: '#cdd6f4', flex: 1},
     waitlistActions: {flexDirection: 'row', gap: 6},
-    approveButton: {backgroundColor: '#16a34a', borderColor: '#16a34a', minHeight: 36, flex: 0, paddingHorizontal: 10},
-    approveBtnLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    rejectButton: {backgroundColor: '#dc2626', borderColor: '#dc2626', minHeight: 36, flex: 0, paddingHorizontal: 10},
-    rejectBtnLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    // Reset game styles
+    approveButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1', minHeight: 36, flex: 0, paddingHorizontal: 10},
+    approveBtnLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
+    rejectButton: {backgroundColor: '#D92800', borderColor: '#D92800', minHeight: 36, flex: 0, paddingHorizontal: 10},
+    rejectBtnLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
     resetSection: {marginTop: 30},
-    resetButton: {backgroundColor: '#dc2626', borderColor: '#dc2626'},
+    resetButton: {backgroundColor: '#D92800', borderColor: '#D92800'},
     resetLabel: {color: '#ffffff', fontWeight: '600'},
 });
 
diff --git a/src/components/screens/LeaderboardScreen.js b/src/components/screens/LeaderboardScreen.js
index 2f90f0b..254faf9 100644
--- a/src/components/screens/LeaderboardScreen.js
+++ b/src/components/screens/LeaderboardScreen.js
@@ -6,12 +6,14 @@ import {Button} from '../UI/Button';
 import useGameHook from '../../hooks/useGameHook';
 import {getSession} from '../../hooks/SessionStore';
 
-const LeaderboardScreen = () => {
+const LeaderboardScreen = ({navigation, route}) => {
 //   Initialisation ------------
 
     const session = getSession();
     const isAdmin = session.isAcceptedAdmin;
-    const {getLobby, getTeams, getTeamMembers, getGroupMembers, getCaches, getUser, deleteTeam, resetPlayerProgress} = useGameHook();
+    const isBusiness = Boolean(session.isBusiness);
+    const selectedDepartment = route?.params?.department || null;
+    const {getLobby, getSubgroup, getTeams, getTeamMembers, getGroupMembers, getCaches, getUser, deleteTeam, resetPlayerProgress, resetTeamProgress, getSubgroups} = useGameHook();
 
 //   State ----------------------
 
@@ -23,6 +25,7 @@ const LeaderboardScreen = () => {
     const [myTeamRanking, setMyTeamRanking] = useState([]);
     const [expandedTeam, setExpandedTeam] = useState(null);
     const [totalCacheCount, setTotalCacheCount] = useState(0);
+    const [departmentList, setDepartmentList] = useState([]);
 
 //   Handlers -------------------
 
@@ -30,16 +33,32 @@ const LeaderboardScreen = () => {
         if (!session.currentGid) { setLoading(false); return; }
 
         const group = await getLobby(session.currentGid);
-        const isTeams = Boolean(group?.TeamsEnabled);
+
+        const effectiveSGid = isBusiness
+            ? ((isAdmin && selectedDepartment?.SGid) ? selectedDepartment.SGid : (isAdmin ? null : session.currentSGid))
+            : null;
+
+        let isTeams = Boolean(group?.TeamsEnabled);
+        if (effectiveSGid !== null && effectiveSGid !== undefined) {
+            const subgroup = await getSubgroup(effectiveSGid);
+            if (subgroup) isTeams = Boolean(subgroup.TeamsEnabled);
+        }
         setTeamsEnabled(isTeams);
 
-        const caches = await getCaches(session.currentGid, null);
+        if (isBusiness && isAdmin && !selectedDepartment) {
+            const sgs = await getSubgroups(session.currentGid);
+            setDepartmentList((sgs || []).filter((sg) => !sg.IsAdminGroup));
+            setLoading(false);
+            return;
+        }
+
+        const caches = await getCaches(session.currentGid, effectiveSGid ?? null);
         const total = (caches || []).length;
         setTotalCacheCount(total);
 
         if (isTeams) {
             // Build team rankings
-            const teams = await getTeams(session.currentGid);
+            const teams = await getTeams(session.currentGid, effectiveSGid ?? null);
             const teamData = [];
 
             for (const team of (teams || [])) {
@@ -80,9 +99,9 @@ const LeaderboardScreen = () => {
             }
         } else {
             // Build player rankings (no teams)
-            const allMembers = await getGroupMembers(session.currentGid);
+            const scopedMembers = await getGroupMembers(session.currentGid, effectiveSGid ?? null);
             const playerData = [];
-            for (const m of (allMembers || []).filter((mem) => !mem.IsAcceptedAdmin)) {
+            for (const m of (scopedMembers || []).filter((mem) => !mem.IsAcceptedAdmin)) {
                 const user = await getUser(m.Uid);
                 const count = (caches || []).filter((c) =>
                     (c.Claims || []).some((cl) => cl.Uid === m.Uid)
@@ -98,7 +117,7 @@ const LeaderboardScreen = () => {
         }
 
         setLoading(false);
-    }, [session.currentGid, session.currentTid]);
+    }, [session.currentGid, session.currentTid, session.currentSGid, isBusiness, isAdmin, selectedDepartment, selectedDepartment?.SGid]);
 
     useEffect(() => { loadData(); }, [loadData]);
 
@@ -133,6 +152,21 @@ const LeaderboardScreen = () => {
         ]);
     };
 
+    const handleResetTeam = (team) => {
+        Alert.alert('Reset Team Progress', `Reset all cache claims for team "${team.name}"?`, [
+            {text: 'Cancel', style: 'cancel'},
+            {
+                text: 'Reset',
+                style: 'destructive',
+                onPress: async () => {
+                    await resetTeamProgress(session.currentGid, team.tid);
+                    Alert.alert('Done', `Progress for team "${team.name}" has been reset.`);
+                    await loadData();
+                },
+            },
+        ]);
+    };
+
 //   View -----------------------
 
     if (loading) {
@@ -151,6 +185,32 @@ const LeaderboardScreen = () => {
         );
     }
 
+    if (isBusiness && isAdmin && !selectedDepartment) {
+        return (
+            <Screen style={styles.container}>
+                <Text style={styles.departmentTitle}>Departments</Text>
+                <ScrollView style={styles.listSection}>
+                    {departmentList.map((department) => (
+                        <Pressable
+                            key={department.SGid}
+                            onPress={() => navigation.navigate('LeaderboardScreen', {department})}
+                        >
+                            <Card>
+                                <View style={styles.rankRow}>
+                                    <Text style={styles.rankName}>{department.SubGroupName}</Text>
+                                    <Text style={styles.openLabel}>Open</Text>
+                                </View>
+                            </Card>
+                        </Pressable>
+                    ))}
+                    {departmentList.length === 0 && (
+                        <Text style={styles.emptyText}>No departments yet.</Text>
+                    )}
+                </ScrollView>
+            </Screen>
+        );
+    }
+
     // Helper: render an expandable team card (admin version with delete + reset)
     const renderAdminTeamCard = (team, index) => (
         <Card key={team.tid}>
@@ -179,11 +239,17 @@ const LeaderboardScreen = () => {
                         </View>
                     ))}
                     <View style={styles.deleteTeamWrap}>
+                        <Button
+                            label="Reset Team Progress"
+                            onClick={() => handleResetTeam(team)}
+                            styleButton={styles.resetTeamButton}
+                            styleLabel={styles.deleteTeamLabel}
+                        />
                         <Button
                             label="Delete Team"
                             onClick={() => handleDeleteTeam(team)}
                             styleButton={styles.deleteTeamButton}
-                            styleLabel={styles.deleteTeamLabel}
+                            styleLabel={styles.deleteTeamDeleteLabel}
                         />
                     </View>
                 </View>
@@ -248,7 +314,10 @@ const LeaderboardScreen = () => {
         // Teams enabled: show team list (no tabs for admin)
         if (teamsEnabled) {
             return (
-                <Screen style={styles.container}>
+                <Screen style={styles.container} showBack={Boolean(selectedDepartment)}>
+                    {selectedDepartment && (
+                        <Text style={styles.departmentTitle}>{selectedDepartment.SubGroupName}</Text>
+                    )}
                     <ScrollView style={styles.listSection}>
                         {teamRankings.map((team, index) => renderAdminTeamCard(team, index))}
                         {teamRankings.length === 0 && (
@@ -261,7 +330,10 @@ const LeaderboardScreen = () => {
 
         // Teams disabled: show player list with reset buttons
         return (
-            <Screen style={styles.container}>
+            <Screen style={styles.container} showBack={Boolean(selectedDepartment)}>
+                {selectedDepartment && (
+                    <Text style={styles.departmentTitle}>{selectedDepartment.SubGroupName}</Text>
+                )}
                 <ScrollView style={styles.listSection}>
                     {playerRankings.map((player, index) => renderAdminPlayerCard(player, index))}
                     {playerRankings.length === 0 && (
@@ -339,11 +411,13 @@ const LeaderboardScreen = () => {
 const styles = StyleSheet.create({
     center: {justifyContent: 'center', alignItems: 'center'},
     container: {padding: 0},
-    body: {color: '#4b5563', fontSize: 15},
+    body: {color: '#bac2de', fontSize: 15},
+    departmentTitle: {fontSize: 20, fontWeight: '700', color: '#cdd6f4', paddingHorizontal: 15, paddingTop: 15, marginBottom: 6},
+    openLabel: {fontSize: 13, fontWeight: '700', color: '#bd93f9'},
     tabRow: {
         flexDirection: 'row',
         borderBottomWidth: 1,
-        borderBottomColor: '#e5e7eb',
+        borderBottomColor: '#45475a',
     },
     tabButton: {
         flex: 1,
@@ -352,46 +426,45 @@ const styles = StyleSheet.create({
     },
     tabButtonActive: {
         borderBottomWidth: 2,
-        borderBottomColor: '#2563eb',
+        borderBottomColor: '#bd93f9',
     },
-    tabLabel: {fontSize: 15, fontWeight: '600', color: '#6b7280'},
-    tabLabelActive: {color: '#2563eb'},
+    tabLabel: {fontSize: 15, fontWeight: '600', color: '#6c7086'},
+    tabLabelActive: {color: '#bd93f9'},
     listSection: {flex: 1, paddingHorizontal: 15, paddingTop: 10},
     rankRow: {
         flexDirection: 'row',
         alignItems: 'center',
         gap: 10,
     },
-    rank: {fontSize: 16, fontWeight: '700', color: '#374151', width: 32},
-    rankName: {flex: 1, fontSize: 15, fontWeight: '600', color: '#1f2937'},
-    score: {fontSize: 14, fontWeight: '600', color: '#16a34a'},
+    rank: {fontSize: 16, fontWeight: '700', color: '#bac2de', width: 32},
+    rankName: {flex: 1, fontSize: 15, fontWeight: '600', color: '#cdd6f4'},
+    score: {fontSize: 14, fontWeight: '600', color: '#a6e3a1'},
     subRow: {
         flexDirection: 'row',
         alignItems: 'center',
         paddingLeft: 42,
         paddingVertical: 6,
         borderTopWidth: 1,
-        borderTopColor: '#f3f4f6',
+        borderTopColor: '#45475a',
     },
-    subName: {fontSize: 13, color: '#4b5563'},
-    subScore: {fontSize: 13, fontWeight: '600', color: '#16a34a', marginRight: 8},
-    emptyText: {color: '#9ca3af', textAlign: 'center', marginTop: 30, fontSize: 14},
-    // Admin delete team button
-    deleteTeamWrap: {marginTop: 8, paddingLeft: 42},
-    deleteTeamButton: {backgroundColor: '#dc2626', borderColor: '#dc2626', minHeight: 36},
-    deleteTeamLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    // Admin reset mini button (inline)
+    subName: {fontSize: 13, color: '#bac2de'},
+    subScore: {fontSize: 13, fontWeight: '600', color: '#a6e3a1', marginRight: 8},
+    emptyText: {color: '#6c7086', textAlign: 'center', marginTop: 30, fontSize: 14},
+    deleteTeamWrap: {marginTop: 8, paddingLeft: 42, flexDirection: 'row', gap: 8},
+    resetTeamButton: {backgroundColor: '#f4a460', borderColor: '#f4a460', minHeight: 36, flex: 1},
+    deleteTeamButton: {backgroundColor: '#D92800', borderColor: '#D92800', minHeight: 36, flex: 1},
+    deleteTeamLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
+    deleteTeamDeleteLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
     resetMiniButton: {
-        backgroundColor: '#f59e0b',
+        backgroundColor: '#86efac',
         borderRadius: 6,
         paddingHorizontal: 10,
         paddingVertical: 4,
         marginLeft: 6,
     },
-    resetMiniLabel: {color: '#ffffff', fontWeight: '600', fontSize: 12},
-    // Current user self-highlight (light green card / sub-row)
-    selfCard: {backgroundColor: '#dcfce7', borderColor: '#86efac'},
-    selfSubRow: {backgroundColor: '#dcfce7'},
+    resetMiniLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 12},
+    selfCard: {backgroundColor: 'rgba(166, 227, 161, 0.15)', borderColor: '#a6e3a1'},
+    selfSubRow: {backgroundColor: 'rgba(166, 227, 161, 0.15)'},
 });
 
 export default LeaderboardScreen;
diff --git a/src/components/screens/LoginScreen.js b/src/components/screens/LoginScreen.js
index 497b3d8..c37c0e3 100644
--- a/src/components/screens/LoginScreen.js
+++ b/src/components/screens/LoginScreen.js
@@ -5,16 +5,9 @@ import Screen from '../layout/Screen';
 import {Button, ButtonTray} from '../UI/Button';
 
 const LoginScreen = ({ navigation }) => {
-//   Initialisation -------------
-
   const { email, password, error, isLoading, setEmail, setPassword, login } = useAuthHook();
-
-//   State ----------------------
-
   const [submitting, setSubmitting] = useState(false);
 
-//   Handlers -------------------
-
   const handleLogin = async () => {
     setSubmitting(true);
     const user = await login();
@@ -29,8 +22,6 @@ const LoginScreen = ({ navigation }) => {
     navigation.reset({ index: 0, routes: [{ name: 'Game' }] });
   };
 
-//   View -----------------------
-
   return (
     <Screen style={styles.container}>
       <View style={styles.content}>
@@ -39,7 +30,7 @@ const LoginScreen = ({ navigation }) => {
         <TextInput
           style={styles.input}
           placeholder="Email"
-          placeholderTextColor="#9ca3af"
+          placeholderTextColor="#6c7086"
           autoCapitalize="none"
           keyboardType="email-address"
           value={email}
@@ -49,7 +40,7 @@ const LoginScreen = ({ navigation }) => {
         <TextInput
           style={styles.input}
           placeholder="Password"
-          placeholderTextColor="#9ca3af"
+          placeholderTextColor="#6c7086"
           secureTextEntry
           value={password}
           onChangeText={setPassword}
@@ -87,33 +78,34 @@ const styles = StyleSheet.create({
     fontWeight: 'bold',
     textAlign: 'center',
     marginBottom: 10,
+    color: '#cdd6f4',
   },
   input: {
     borderWidth: 1,
-    borderColor: '#d1d5db',
+    borderColor: '#45475a',
     borderRadius: 8,
     paddingHorizontal: 12,
     paddingVertical: 10,
     fontSize: 16,
-    color: '#1f2937',
-    backgroundColor: '#ffffff',
+    color: '#cdd6f4',
+    backgroundColor: '#313244',
   },
   errorText: {
-    color: '#dc2626',
+    color: '#D92800',
     textAlign: 'center',
     marginTop: 5,
   },
   submitButton: {
-    backgroundColor: '#2563eb',
-    borderColor: '#2563eb',
+    backgroundColor: '#bd93f9',
+    borderColor: '#bd93f9',
   },
   submitText: {
-    color: '#ffffff',
+    color: '#1e1e2e',
     fontWeight: '600',
   },
   linkText: {
     textAlign: 'center',
-    color: '#2563eb',
+    color: '#bd93f9',
     fontWeight: '600',
     paddingVertical: 10,
   },
diff --git a/src/components/screens/MapScreen.js b/src/components/screens/MapScreen.js
index d01b55d..fcc8fad 100644
--- a/src/components/screens/MapScreen.js
+++ b/src/components/screens/MapScreen.js
@@ -16,54 +16,60 @@ import {getFovCone} from '../../utils/geoMath';
 const DEFAULT_REGION = {latitude: 51.5074, longitude: -0.1278, latitudeDelta: 0.05, longitudeDelta: 0.05};
 
 
-const MapScreen = ({navigation}) => {
-//   Initialisation ------------
+const MapScreen = ({navigation, route}) => {
+  const session = getSession();
+  const {getCaches, claimCache, upsertCache, deleteCache, joinPrivateGame, createPrivateGame, getLobby, getUser, getSubgroups, getGroupByOrgCode} = useGameHook();
 
-    const session = getSession();
-    const {getCaches, claimCache, upsertCache, deleteCache, joinPrivateGame, createPrivateGame, getLobby, getUser, getSubgroups} = useGameHook();
+  // Stable ref to prevent infinite re-render loops
+  const getCachesRef = useRef(getCaches);
+  getCachesRef.current = getCaches;
+  const lastAppliedRouteDepartmentRef = useRef(null);
 
-    // Stable ref to prevent infinite re-render loops
-    const getCachesRef = useRef(getCaches);
-    getCachesRef.current = getCaches;
+  const [inGame, setInGame] = useState(Boolean(session.currentGid));
+  const [isAdmin, setIsAdmin] = useState(session.isAcceptedAdmin);
+  const [userLocation, setUserLocation] = useState(null);
+  const [heading, setHeading] = useState(null);
+  const [playerLoading, setPlayerLoading] = useState(true);
+  const [cacheRecords, setCacheRecords] = useState([]);
+  const [error, setError] = useState('');
+  const [gameCode, setGameCode] = useState('');
+  const [groupInfo, setGroupInfo] = useState(null);
+  const [selectedCacheId, setSelectedCacheIdState] = useState(session.selectedCacheId);
+  const [claimedPopupVisible, setClaimedPopupVisible] = useState(false);
+  const [subgroups, setSubgroups] = useState([]);
 
-//   State ----------------------
+  // Business join flow state
+  const [joinStep, setJoinStep] = useState(null);
+  const [orgCode, setOrgCode] = useState('');
+  const [deptCode, setDeptCode] = useState('');
+  const [matchedGroup, setMatchedGroup] = useState(null);
+  const [joinError, setJoinError] = useState('');
 
-    const [inGame, setInGame] = useState(Boolean(session.currentGid));
-    const [isAdmin, setIsAdmin] = useState(session.isAcceptedAdmin);
-    const [userLocation, setUserLocation] = useState(null);
-    const [heading, setHeading] = useState(null);
-    const [playerLoading, setPlayerLoading] = useState(true);
-    const [cacheRecords, setCacheRecords] = useState([]);
-    const [error, setError] = useState('');
-    const [gameCode, setGameCode] = useState('');
-    const [groupInfo, setGroupInfo] = useState(null);
-    const [selectedCacheId, setSelectedCacheIdState] = useState(session.selectedCacheId);
-    const [claimedPopupVisible, setClaimedPopupVisible] = useState(false);
-    const [subgroups, setSubgroups] = useState([]);
+  // Admin cache creation / editing state
+  const [isCreating, setIsCreating] = useState(false);
+  const [editingCacheId, setEditingCacheId] = useState(null);
+  const [newCoord, setNewCoord] = useState(null);
+  const [newName, setNewName] = useState('');
+  const [newClue, setNewClue] = useState('');
+  const [selectedCacheSubgroupId, setSelectedCacheSubgroupId] = useState(null);
+  const [departmentDropdownOpen, setDepartmentDropdownOpen] = useState(false);
 
-    // Admin cache creation / editing state
-    const [isCreating, setIsCreating] = useState(false);
-    const [editingCacheId, setEditingCacheId] = useState(null);
-    const [newCoord, setNewCoord] = useState(null);
-    const [newName, setNewName] = useState('');
-    const [newClue, setNewClue] = useState('');
+  const claimDistance = groupInfo?.CacheTriggerMeters || 20;
+  const isPlayer = inGame && !isAdmin;
+  const requiresTeam = Boolean(isPlayer && groupInfo?.TeamsEnabled && !session.currentTid);
+  const EMPTY_CACHES = useMemo(() => [], []);
 
-    const claimDistance = groupInfo?.CacheTriggerMeters || 20;
-    const isPlayer = inGame && !isAdmin;
-    const requiresTeam = Boolean(isPlayer && groupInfo?.TeamsEnabled && !session.currentTid);
-    const EMPTY_CACHES = useMemo(() => [], []);
-
-    // Caches not yet claimed by the current user's team (or user if no team)
-    const activeCachesForPlayer = useMemo(() => {
-        if (!isPlayer) return EMPTY_CACHES;
-        return cacheRecords.filter((cache) => {
-            const claims = cache.Claims || [];
-            if (session.currentTid) {
-                return !claims.some((c) => c.Tid === session.currentTid);
-            }
-            return !claims.some((c) => c.Uid === session.currentUid);
-        });
-    }, [cacheRecords, isPlayer, session.currentTid, session.currentUid, EMPTY_CACHES]);
+  // Caches not yet claimed by the current user's team (or user if no team)
+  const activeCachesForPlayer = useMemo(() => {
+    if (!isPlayer) return EMPTY_CACHES;
+    return cacheRecords.filter((cache) => {
+      const claims = cache.Claims || [];
+      if (session.currentTid) {
+        return !claims.some((c) => c.Tid === session.currentTid);
+      }
+      return !claims.some((c) => c.Uid === session.currentUid);
+    });
+  }, [cacheRecords, isPlayer, session.currentTid, session.currentUid, EMPTY_CACHES]);
 
     const {visibleCaches, isClaiming, setIsClaiming} = usePlayerGame(
         (isPlayer && !requiresTeam) ? userLocation : null,
@@ -73,20 +79,47 @@ const MapScreen = ({navigation}) => {
         selectedCacheId,
     );
 
-    const mapRegion = userLocation
-        ? {...userLocation, latitudeDelta: 0.01, longitudeDelta: 0.01}
-        : DEFAULT_REGION;
+  const mapRegion = userLocation
+    ? {...userLocation, latitudeDelta: 0.01, longitudeDelta: 0.01}
+    : DEFAULT_REGION;
 
-//   Handlers -------------------
+  useEffect(() => {
+    if (!session.currentGid) return;
+    getLobby(session.currentGid).then(setGroupInfo);
+    getSubgroups(session.currentGid).then(setSubgroups);
+  }, [inGame]);
+
+  // Default member subgroup SGid for cache creation (first non-admin subgroup)
+  const departments = useMemo(
+    () => subgroups.filter((sg) => !sg.IsAdminGroup),
+    [subgroups],
+  );
+  const defaultMemberSGid = departments[0]?.SGid || null;
+  const departmentNamesById = useMemo(() => {
+    const map = {};
+    for (const subgroup of departments) {
+      map[String(subgroup.SGid)] = subgroup.SubGroupName || `Department ${subgroup.SGid}`;
+    }
+    return map;
+  }, [departments]);
 
     useEffect(() => {
-        if (!session.currentGid) return;
-        getLobby(session.currentGid).then(setGroupInfo);
-        getSubgroups(session.currentGid).then(setSubgroups);
-    }, [inGame]);
+        if (!isAdmin || departments.length === 0) return;
+        const routeSelectedSgid = route?.params?.selectedDepartmentSGid;
+        const hasRouteDepartment = departments.some((sg) => String(sg.SGid) === String(routeSelectedSgid));
+        const shouldApplyRouteDepartment =
+            hasRouteDepartment && String(lastAppliedRouteDepartmentRef.current) !== String(routeSelectedSgid);
+        if (shouldApplyRouteDepartment) {
+            setSelectedCacheSubgroupId(routeSelectedSgid);
+            lastAppliedRouteDepartmentRef.current = routeSelectedSgid;
+            return;
+        }
 
-    // Default member subgroup SGid for cache creation (first non-admin subgroup)
-    const defaultMemberSGid = subgroups.find((sg) => !sg.IsAdminGroup)?.SGid || null;
+        const currentStillValid = departments.some((sg) => String(sg.SGid) === String(selectedCacheSubgroupId));
+        if (!currentStillValid) {
+            setSelectedCacheSubgroupId(defaultMemberSGid);
+        }
+    }, [route?.params?.selectedDepartmentSGid, departments, isAdmin, selectedCacheSubgroupId, defaultMemberSGid]);
 
     const loadCaches = useCallback(async () => {
         const currentGid = getSession().currentGid;
@@ -190,6 +223,64 @@ const MapScreen = ({navigation}) => {
         }
     };
 
+    // Business — create a new company
+    const handleCreateCompany = async () => {
+        const result = await createPrivateGame({
+            GroupName: 'My Company',
+            BusinessOrSchoolName: 'My Company',
+            CreatedByUid: session.currentUid,
+            TeamsEnabled: false,
+            MaxMemberSubgroups: 1,
+            isBusiness: true,
+        });
+        if (!result) return;
+        const freshUser = await getUser(session.currentUid);
+        if (freshUser) {
+            setSessionUser(freshUser);
+            setInGame(true);
+            setIsAdmin(true);
+            navigation.reset({index: 0, routes: [{name: 'Admin'}]});
+        }
+    };
+
+    // Business — verify the org code
+    const handleVerifyOrgCode = async () => {
+        setJoinError('');
+        if (!orgCode.trim()) return;
+        const group = await getGroupByOrgCode(orgCode.trim().toUpperCase());
+        if (!group) {
+            setJoinError('Organisation not found. Check your code and try again.');
+            return;
+        }
+        setMatchedGroup(group);
+        setJoinStep('deptCode');
+    };
+
+    // Business — join a department within the matched org
+    const handleJoinDepartment = async () => {
+        setJoinError('');
+        if (!deptCode.trim()) return;
+        const result = await joinPrivateGame({
+            JoinCode: deptCode.trim().toUpperCase(),
+            Uid: session.currentUid,
+            ExpectedGid: matchedGroup.Gid,
+        });
+        if (!result) {
+            setJoinError('Invalid department code. Check the code and try again.');
+            return;
+        }
+        setSessionGroup(result.Gid, result.SGid);
+        const freshUser = await getUser(session.currentUid);
+        if (freshUser) {
+            setSessionUser(freshUser);
+            setSessionTeam(freshUser.TGid ?? null);
+        }
+        setInGame(true);
+        setIsAdmin(false);
+        setJoinStep(null);
+        navigation.navigate('TeamScreen');
+    };
+
     const handleClaim = useCallback(async (cacheId) => {
         if (!session.currentGid) return;
         const result = await claimCache({
@@ -212,6 +303,8 @@ const MapScreen = ({navigation}) => {
         setNewCoord(fallback);
         setNewName('');
         setNewClue('');
+        if (!selectedCacheSubgroupId && defaultMemberSGid) setSelectedCacheSubgroupId(defaultMemberSGid);
+        setDepartmentDropdownOpen(false);
         setIsCreating(true);
     };
 
@@ -220,6 +313,8 @@ const MapScreen = ({navigation}) => {
         setNewCoord(cache.coordinates);
         setNewName(cache.name || '');
         setNewClue(cache.clue || '');
+        setSelectedCacheSubgroupId(cache.subgroupId || defaultMemberSGid);
+        setDepartmentDropdownOpen(false);
         setIsCreating(true);
     };
 
@@ -231,24 +326,28 @@ const MapScreen = ({navigation}) => {
 
     const handleSaveCache = async () => {
         if (!newCoord || !newClue.trim() || !session.currentGid) return;
+        const subgroupId = selectedCacheSubgroupId || defaultMemberSGid;
+        if (!subgroupId) return;
         const payload = {
             gid: session.currentGid,
             name: newName.trim(),
             latitude: newCoord.latitude,
             longitude: newCoord.longitude,
             clue: newClue.trim(),
-            subgroupId: defaultMemberSGid,
+            subgroupId,
         };
         if (editingCacheId) payload.cacheId = editingCacheId;
         await upsertCache(payload);
         setIsCreating(false);
         setEditingCacheId(null);
+        setDepartmentDropdownOpen(false);
         await loadCaches();
     };
 
     const handleCancelCreate = () => {
         setIsCreating(false);
         setEditingCacheId(null);
+        setDepartmentDropdownOpen(false);
     };
 
     const handleExpandMap = () => {
@@ -273,9 +372,86 @@ const MapScreen = ({navigation}) => {
         return claims.some((c) => c.Uid === session.currentUid);
     };
 
+    const showAdminDepartmentLabel = Boolean(isAdmin && groupInfo?.BusinessOrSchoolName);
+
 //   View -----------------------
 
-    // Not in a game
+    // Not in a game — Business flow
+    if (!inGame && session.isBusiness) {
+        // Step 2: Enter department code
+        if (joinStep === 'deptCode' && matchedGroup) {
+            return (
+                <Screen style={styles.center}>
+                    <Text style={styles.bizTitle}>Join {matchedGroup.BusinessOrSchoolName || 'Company'}</Text>
+                    <Text style={styles.bizSubtitle}>Enter your department code to join</Text>
+                    <View style={styles.inputRow}>
+                        <TextInput
+                            style={styles.codeInput}
+                            placeholder="Department Code"
+                            placeholderTextColor="#9ca3af"
+                            value={deptCode}
+                            onChangeText={(text) => setDeptCode(text.toUpperCase())}
+                            autoCapitalize="characters"
+                        />
+                        <Button
+                            label="Join"
+                            onClick={handleJoinDepartment}
+                            styleButton={styles.joinButton}
+                            styleLabel={styles.joinLabel}
+                        />
+                    </View>
+                    {joinError ? <Text style={styles.joinError}>{joinError}</Text> : null}
+                    <View style={styles.fullRow}>
+                        <ButtonTray>
+                            <Button
+                                label="Back"
+                                onClick={() => { setJoinStep(null); setDeptCode(''); setJoinError(''); }}
+                                styleButton={styles.backButton}
+                                styleLabel={styles.backLabel}
+                            />
+                        </ButtonTray>
+                    </View>
+                </Screen>
+            );
+        }
+
+        // Default: Join company or Create company choice
+        return (
+            <Screen style={styles.center}>
+                <Text style={styles.bizTitle}>Welcome</Text>
+                <Text style={styles.bizSubtitle}>Set up your organisation or join an existing one</Text>
+                <View style={styles.inputRow}>
+                    <TextInput
+                        style={styles.codeInput}
+                            placeholder="Company Code"
+                        placeholderTextColor="#9ca3af"
+                        value={orgCode}
+                        onChangeText={(text) => setOrgCode(text.toUpperCase())}
+                        autoCapitalize="characters"
+                    />
+                    <Button
+                        label="Join Company"
+                        onClick={handleVerifyOrgCode}
+                        styleButton={styles.joinButton}
+                        styleLabel={styles.joinLabel}
+                    />
+                </View>
+                {joinError ? <Text style={styles.joinError}>{joinError}</Text> : null}
+                <View style={styles.fullRow}>
+                    <ButtonTray>
+                        <Button
+                            label="Create Company"
+                            onClick={handleCreateCompany}
+                            styleButton={styles.createButton}
+                            styleLabel={styles.createLabel}
+                        />
+                    </ButtonTray>
+                </View>
+            </Screen>
+        );
+    }
+
+    // Not in a game — Individual flow
     if (!inGame) {
         return (
             <Screen style={styles.center}>
@@ -355,6 +531,32 @@ const MapScreen = ({navigation}) => {
                     </MapView>
                 </View>
                 <ScrollView style={styles.formSection}>
+                    <Text style={styles.departmentLabel}>Department</Text>
+                    <Pressable
+                        style={styles.departmentSelector}
+                        onPress={() => setDepartmentDropdownOpen((prev) => !prev)}
+                    >
+                        <Text style={styles.departmentSelectorText}>
+                            {departmentNamesById[String(selectedCacheSubgroupId)] || 'Select department'}
+                        </Text>
+                        <Text style={styles.departmentSelectorChevron}>{departmentDropdownOpen ? '▲' : '▼'}</Text>
+                    </Pressable>
+                    {departmentDropdownOpen && (
+                        <View style={styles.departmentMenu}>
+                            {departments.map((department) => (
+                                <Pressable
+                                    key={department.SGid}
+                                    style={styles.departmentOption}
+                                    onPress={() => {
+                                        setSelectedCacheSubgroupId(department.SGid);
+                                        setDepartmentDropdownOpen(false);
+                                    }}
+                                >
+                                    <Text style={styles.departmentOptionText}>{department.SubGroupName}</Text>
+                                </Pressable>
+                            ))}
+                        </View>
+                    )}
                     <TextInput
                         style={styles.formInput}
                         placeholder="Cache Name"
@@ -462,6 +664,7 @@ const MapScreen = ({navigation}) => {
                                 key={cache.id}
                                 cache={cache}
                                 isAdmin={true}
+                                departmentName={showAdminDepartmentLabel ? (departmentNamesById[String(cache.subgroupId)] || 'Unassigned') : null}
                                 onEdit={handleEditCache}
                                 onDelete={handleDeleteCache}
                             />
@@ -548,27 +751,31 @@ const styles = StyleSheet.create({
     center: {justifyContent: 'center', alignItems: 'center'},
     containerMap: {padding: 0},
     mapContainer: {height: 200},
-    error: {color: '#dc2626', fontSize: 15},
-    loadingText: {color: '#6b7280', fontSize: 14, marginTop: 10},
+    error: {color: '#D92800', fontSize: 15},
+    loadingText: {color: '#6c7086', fontSize: 14, marginTop: 10},
     inputRow: {flexDirection: 'row', gap: 10, marginBottom: 15, width: '100%', paddingHorizontal: 20},
     fullRow: {width: '100%', paddingHorizontal: 20},
     codeInput: {
         flex: 1,
         borderWidth: 1,
-        borderColor: '#d1d5db',
+        borderColor: '#45475a',
         borderRadius: 8,
         paddingHorizontal: 12,
         paddingVertical: 10,
         fontSize: 16,
-        color: '#1f2937',
-        backgroundColor: '#ffffff',
-    },
-    joinButton: {backgroundColor: '#2563eb', borderColor: '#2563eb', flex: 0, paddingHorizontal: 20},
-    joinLabel: {color: '#ffffff', fontWeight: '600'},
-    createButton: {backgroundColor: '#16a34a', borderColor: '#16a34a'},
-    createLabel: {color: '#ffffff', fontWeight: '600'},
+        color: '#cdd6f4',
+        backgroundColor: '#313244',
+    }, joinButton: {backgroundColor: '#bd93f9', borderColor: '#bd93f9', flex: 0, paddingHorizontal: 20},
+    joinLabel: {color: '#1e1e2e', fontWeight: '600'},
+    createButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1'},
+    createLabel: {color: '#1e1e2e', fontWeight: '600'},
+    bizTitle: {fontSize: 22, fontWeight: '700', color: '#cdd6f4', marginBottom: 6, textAlign: 'center'},
+    bizSubtitle: {fontSize: 14, color: '#bac2de', textAlign: 'center', marginBottom: 20, paddingHorizontal: 20},
+    joinError: {color: '#D92800', textAlign: 'center', marginTop: 8, marginBottom: 4, fontSize: 14, paddingHorizontal: 20},
+    backButton: {backgroundColor: '#6c7086', borderColor: '#6c7086'},
+    backLabel: {color: '#cdd6f4', fontWeight: '600'},
     warning: {
-        color: '#dc2626',
+        color: '#D92800',
         fontWeight: 'bold',
         textAlign: 'center',
         paddingVertical: 8,
@@ -578,7 +785,7 @@ const styles = StyleSheet.create({
         position: 'absolute',
         top: 10,
         left: 10,
-        backgroundColor: 'rgba(0,0,0,0.6)',
+        backgroundColor: 'rgba(0, 0, 0, 0.6)',
         borderRadius: 6,
         width: 36,
         height: 36,
@@ -586,42 +793,64 @@ const styles = StyleSheet.create({
         justifyContent: 'center',
         zIndex: 10,
     },
-    expandIcon: {color: '#ffffff', fontSize: 18, fontWeight: '700'},
-    // Admin create button + scrollable cache list
+    expandIcon: {color: '#cdd6f4', fontSize: 18, fontWeight: '700'},
     createCacheWrap: {
         paddingHorizontal: 12,
         paddingVertical: 10,
-        backgroundColor: '#ffffff',
+        backgroundColor: '#313244',
         borderBottomWidth: 1,
-        borderBottomColor: '#e5e7eb',
+        borderBottomColor: '#45475a',
     },
-    createCacheButton: {backgroundColor: '#2563eb', borderColor: '#2563eb', flex: 0},
-    createCacheLabel: {color: '#ffffff', fontWeight: '600'},
-    cacheListWrap: {flex: 1, backgroundColor: '#f3f4f6'},
+    createCacheButton: {backgroundColor: '#bd93f9', borderColor: '#bd93f9', flex: 0},
+    createCacheLabel: {color: '#1e1e2e', fontWeight: '600'},
+    cacheListWrap: {flex: 1, backgroundColor: '#1e1e2e'},
     cacheListContent: {paddingHorizontal: 12, paddingTop: 10, paddingBottom: 12},
-    // Cache editor form
     formSection: {flex: 1, paddingHorizontal: 12, paddingVertical: 10},
     formInput: {
         borderWidth: 1,
-        borderColor: '#d1d5db',
+        borderColor: '#45475a',
         borderRadius: 8,
         paddingHorizontal: 12,
         paddingVertical: 10,
         fontSize: 16,
-        color: '#1f2937',
-        backgroundColor: '#ffffff',
+        color: '#cdd6f4',
+        backgroundColor: '#313244',
         marginBottom: 10,
     },
+    departmentLabel: {fontSize: 13, fontWeight: '600', color: '#bac2de', marginBottom: 6},
+    departmentSelector: {
+        borderWidth: 1,
+        borderColor: '#45475a',
+        borderRadius: 8,
+        backgroundColor: '#313244',
+        paddingHorizontal: 12,
+        paddingVertical: 10,
+        flexDirection: 'row',
+        justifyContent: 'space-between',
+        alignItems: 'center',
+        marginBottom: 8,
+    },
+    departmentSelectorText: {color: '#cdd6f4', fontSize: 15, fontWeight: '500'},
+    departmentSelectorChevron: {color: '#6c7086', fontSize: 12, fontWeight: '700'},
+    departmentMenu: {
+        borderWidth: 1,
+        borderColor: '#45475a',
+        borderRadius: 8,
+        backgroundColor: '#313244',
+        marginBottom: 10,
+        overflow: 'hidden',
+    },
+    departmentOption: {paddingHorizontal: 12, paddingVertical: 10, borderBottomWidth: 1, borderBottomColor: '#45475a'},
+    departmentOptionText: {color: '#cdd6f4', fontSize: 14},
     coordRow: {flexDirection: 'row', gap: 10},
     coordField: {flex: 1},
-    coordLabel: {fontSize: 12, fontWeight: '600', color: '#6b7280', marginBottom: 4},
-    saveButton: {backgroundColor: '#16a34a', borderColor: '#16a34a'},
-    saveLabel: {color: '#ffffff', fontWeight: '600'},
-    cancelButton: {backgroundColor: '#6b7280', borderColor: '#6b7280'},
-    cancelLabel: {color: '#ffffff', fontWeight: '600'},
-    // Player cache section
-    cacheSection: {flex: 1, backgroundColor: '#f3f4f6', paddingHorizontal: 12, paddingTop: 10},
-    emptyText: {color: '#9ca3af', textAlign: 'center', marginTop: 20, fontSize: 14},
+    coordLabel: {fontSize: 12, fontWeight: '600', color: '#6c7086', marginBottom: 4},
+    saveButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1'},
+    saveLabel: {color: '#1e1e2e', fontWeight: '600'},
+    cancelButton: {backgroundColor: '#6c7086', borderColor: '#6c7086'},
+    cancelLabel: {color: '#cdd6f4', fontWeight: '600'},
+    cacheSection: {flex: 1, backgroundColor: '#1e1e2e', paddingHorizontal: 12, paddingTop: 10},
+    emptyText: {color: '#6c7086', textAlign: 'center', marginTop: 20, fontSize: 14},
     mapWrap: {flex: 1},
 });
 
diff --git a/src/components/screens/PlayersScreen.js b/src/components/screens/PlayersScreen.js
index 86ab0c8..62b0959 100644
--- a/src/components/screens/PlayersScreen.js
+++ b/src/components/screens/PlayersScreen.js
@@ -1,32 +1,57 @@
 import React, {useCallback, useEffect, useState} from 'react';
-import {ActivityIndicator, Alert, ScrollView, StyleSheet, Text, View} from 'react-native';
+import {ActivityIndicator, Alert, Pressable, ScrollView, StyleSheet, Text, View} from 'react-native';
 import Screen from '../layout/Screen';
 import Card from '../UI/Card';
 import {Button} from '../UI/Button';
 import useGameHook from '../../hooks/useGameHook';
 import {getSession} from '../../hooks/SessionStore';
 
-const PlayersScreen = () => {
+const PlayersScreen = ({navigation, route}) => {
 //   Initialisation ------------
 
     const session = getSession();
-    const {getTeams, getTeamMembers, getGroupMembers, removeMember, resetPlayerProgress, getUser, getAdminWaitlist, approveAdmin, rejectAdmin} = useGameHook();
+    const {getTeams, getTeamMembers, getGroupMembers, removeMember, resetPlayerProgress, getUser, getAdminWaitlist, approveAdmin, rejectAdmin, getSubgroups} = useGameHook();
+    const isBusiness = Boolean(session.isBusiness);
+    const isAdmin = Boolean(session.isAcceptedAdmin);
+    const selectedDepartment = route?.params?.department || null;
 
 //   State ----------------------
 
     const [loading, setLoading] = useState(true);
     const [players, setPlayers] = useState([]);
+    const [departmentList, setDepartmentList] = useState([]);
 
 //   Handlers -------------------
 
     const loadData = useCallback(async () => {
         if (!session.currentGid) { setLoading(false); return; }
 
+        const effectiveSGid = isBusiness
+            ? ((isAdmin && selectedDepartment?.SGid) ? selectedDepartment.SGid : (isAdmin ? null : session.currentSGid))
+            : null;
+
+        if (isBusiness && isAdmin && !selectedDepartment) {
+            const sgs = await getSubgroups(session.currentGid);
+            setDepartmentList((sgs || []).filter((sg) => !sg.IsAdminGroup));
+            setPlayers([]);
+            setLoading(false);
+            return;
+        }
+
+        // Load subgroup names for department display (business accounts)
+        let subgroupNameMap = {};
+        if (isBusiness) {
+            const sgs = await getSubgroups(session.currentGid);
+            for (const sg of (sgs || [])) {
+                if (!sg.IsAdminGroup) subgroupNameMap[sg.SGid] = sg.SubGroupName;
+            }
+        }
+
         // Get ALL members (including admins)
-        const allMembers = await getGroupMembers(session.currentGid);
+        const allMembers = await getGroupMembers(session.currentGid, effectiveSGid ?? null);
 
         // Get admin waitlist entries
-        const waitlist = await getAdminWaitlist(session.currentGid);
+        const waitlist = effectiveSGid ? [] : await getAdminWaitlist(session.currentGid);
 
         // Deduplicate allMembers by Uid — a user may have two rows if they were a
         // regular member before being approved as an admin. Prefer the admin row.
@@ -36,7 +61,7 @@ const PlayersScreen = () => {
             .filter((m) => { if (seenUids.has(m.Uid)) return false; seenUids.add(m.Uid); return true; });
 
         // Build team lookup: { Uid -> { teamCode, teamName, isLeader } }
-        const allTeams = await getTeams(session.currentGid);
+        const allTeams = await getTeams(session.currentGid, effectiveSGid ?? null);
         const teamInfoByUid = {};
         for (const team of (allTeams || [])) {
             const tms = await getTeamMembers(team.Tid);
@@ -73,6 +98,7 @@ const PlayersScreen = () => {
                     team: teamInfoByUid[m.Uid] || null,
                     adminTag,
                     waitlistId,
+                    departmentName: subgroupNameMap[m.SGid] || null,
                 });
             }
         }
@@ -89,13 +115,14 @@ const PlayersScreen = () => {
                     team: null,
                     adminTag: '[Admin Awaiting Response]',
                     waitlistId: w.id,
+                    departmentName: null,
                 });
             }
         }
 
         setPlayers(playerList);
         setLoading(false);
-    }, [session.currentGid]);
+    }, [session.currentGid, session.currentUid, session.currentSGid, isBusiness, isAdmin, selectedDepartment, selectedDepartment?.SGid]);
 
     useEffect(() => { loadData(); }, [loadData]);
 
@@ -152,8 +179,34 @@ const PlayersScreen = () => {
         );
     }
 
+    if (isBusiness && isAdmin && !selectedDepartment) {
+        return (
+            <Screen style={styles.container}>
+                <Text style={styles.sectionTitle}>Departments</Text>
+                <ScrollView style={styles.listSection}>
+                    {departmentList.map((department) => (
+                        <Pressable
+                            key={department.SGid}
+                            onPress={() => navigation.navigate('PlayersScreen', {department})}
+                        >
+                            <Card>
+                                <View style={styles.playerRow}>
+                                    <Text style={styles.playerName}>{department.SubGroupName}</Text>
+                                    <Text style={styles.openLabel}>Open</Text>
+                                </View>
+                            </Card>
+                        </Pressable>
+                    ))}
+                    {departmentList.length === 0 && (
+                        <Text style={styles.emptyText}>No departments yet.</Text>
+                    )}
+                </ScrollView>
+            </Screen>
+        );
+    }
+
     return (
-        <Screen style={styles.container}>
+        <Screen style={styles.container} showBack={Boolean(selectedDepartment)}>
             <Text style={styles.sectionTitle}>Players</Text>
             <ScrollView style={styles.listSection}>
                 {players.map((player) => (
@@ -167,6 +220,12 @@ const PlayersScreen = () => {
                                         {' '}{player.adminTag}
                                     </Text>
                                 )}
+                                {/* Show department name in brackets for non-admin players (org accounts) */}
+                                {!player.adminTag && player.departmentName && (
+                                    <Text style={styles.departmentName}>
+                                        {' '}({player.departmentName})
+                                    </Text>
+                                )}
                             </Text>
                             <View style={styles.playerMeta}>
                                 {player.team?.isLeader && (
@@ -209,7 +268,7 @@ const PlayersScreen = () => {
                                             label="Kick"
                                             onClick={() => handleRemovePlayer(player.membershipId)}
                                             styleButton={styles.removeButton}
-                                            styleLabel={styles.actionLabel}
+                                            styleLabel={styles.kickLabel}
                                         />
                                     )}
                                 </>
@@ -228,38 +287,39 @@ const PlayersScreen = () => {
 const styles = StyleSheet.create({
     center: {justifyContent: 'center', alignItems: 'center', flex: 1},
     container: {padding: 0},
-    body: {color: '#4b5563', fontSize: 15},
+    body: {color: '#bac2de', fontSize: 15},
     sectionTitle: {
         fontSize: 20,
         fontWeight: '700',
-        color: '#1f2937',
+        color: '#cdd6f4',
         marginBottom: 12,
         paddingHorizontal: 15,
         paddingTop: 15,
     },
+    openLabel: {fontSize: 13, fontWeight: '700', color: '#bd93f9'},
     listSection: {flex: 1, paddingHorizontal: 15},
-    emptyText: {color: '#9ca3af', textAlign: 'center', marginTop: 30, fontSize: 14},
+    emptyText: {color: '#6c7086', textAlign: 'center', marginTop: 30, fontSize: 14},
     playerRow: {
         flexDirection: 'row',
         alignItems: 'center',
         gap: 8,
         marginBottom: 8,
     },
-    playerName: {fontSize: 15, fontWeight: '600', color: '#1f2937', flex: 1},
+    playerName: {fontSize: 15, fontWeight: '600', color: '#cdd6f4', flex: 1},
     playerMeta: {flexDirection: 'row', alignItems: 'center', gap: 6},
-    leaderBadge: {fontSize: 11, color: '#2563eb', fontWeight: '700'},
-    teamCodeBadge: {fontSize: 12, fontWeight: '700', color: '#16a34a', letterSpacing: 1},
-    adminBadge: {fontSize: 12, fontWeight: '700', color: '#dc2626'},
-    waitlistBadge: {fontSize: 11, fontWeight: '600', color: '#f59e0b'},
+    leaderBadge: {fontSize: 11, color: '#bd93f9', fontWeight: '700'},
+    teamCodeBadge: {fontSize: 12, fontWeight: '700', color: '#a6e3a1', letterSpacing: 1},
+    adminBadge: {fontSize: 12, fontWeight: '700', color: '#D92800'},
+    waitlistBadge: {fontSize: 11, fontWeight: '600', color: '#f4a460'},
     actionRow: {flexDirection: 'row', gap: 8},
-    resetButton: {backgroundColor: '#f59e0b', borderColor: '#f59e0b', minHeight: 36, flex: 1, paddingHorizontal: 10},
-    removeButton: {backgroundColor: '#dc2626', borderColor: '#dc2626', minHeight: 36, flex: 1, paddingHorizontal: 10},
-    actionLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    // Waitlisted admin card tint — light red so they read as pending, not regular players
-    waitlistCard: {backgroundColor: '#FFD1DC', borderColor: '#fca5a5'},
-    // Approve / deny buttons for waitlisted admins
-    approveButton: {backgroundColor: '#16a34a', borderColor: '#16a34a', minHeight: 36, flex: 1, paddingHorizontal: 10},
-    denyButton: {backgroundColor: '#dc2626', borderColor: '#dc2626', minHeight: 36, flex: 1, paddingHorizontal: 10},
+    resetButton: {backgroundColor: '#86efac', borderColor: '#86efac', minHeight: 36, flex: 1, paddingHorizontal: 10},
+    removeButton: {backgroundColor: '#D92800', borderColor: '#D92800', minHeight: 36, flex: 1, paddingHorizontal: 10},
+    actionLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
+    kickLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
+    departmentName: {fontSize: 14, color: '#6c7086', fontStyle: 'italic'},
+    waitlistCard: {backgroundColor: 'rgba(217, 40, 0, 0.15)', borderColor: '#D92800'},
+    approveButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1', minHeight: 36, flex: 1, paddingHorizontal: 10},
+    denyButton: {backgroundColor: '#D92800', borderColor: '#D92800', minHeight: 36, flex: 1, paddingHorizontal: 10},
 });
 
 export default PlayersScreen;
diff --git a/src/components/screens/RegisterScreen.js b/src/components/screens/RegisterScreen.js
index 9c6774f..613cf1a 100644
--- a/src/components/screens/RegisterScreen.js
+++ b/src/components/screens/RegisterScreen.js
@@ -5,182 +5,175 @@ import Screen from '../layout/Screen';
 import {Button, ButtonTray} from '../UI/Button';
 
 const RegisterScreen = ({navigation}) => {
-//   Initialisation ------------
+  const {
+    username, email, password, confirmPassword, accountType,
+    error, isLoading,
+    setUsername, setEmail, setPassword, setConfirmPassword, setAccountType,
+    register,
+  } = useAuthHook();
 
-    const {
-        username, email, password, confirmPassword, accountType,
-        error, isLoading,
-        setUsername, setEmail, setPassword, setConfirmPassword, setAccountType,
-        register,
-    } = useAuthHook();
+  const [submitting, setSubmitting] = useState(false);
 
-//   State ----------------------
+  const handleRegister = async () => {
+    setSubmitting(true);
+    const user = await register();
+    setSubmitting(false);
+    if (!user) return;
+    if (user.IsAcceptedAdmin) {
+      navigation.reset({index: 0, routes: [{name: 'Admin'}]});
+      return;
+    }
+    navigation.reset({index: 0, routes: [{name: 'Game'}]});
+  };
 
-    const [submitting, setSubmitting] = useState(false);
+  return (
+    <Screen style={styles.container}>
+      <View style={styles.content}>
+        <Text style={styles.title}>Create Account</Text>
 
-//   Handlers -------------------
+        <TextInput
+          style={styles.input}
+          placeholder="Username"
+          placeholderTextColor="#6c7086"
+          value={username}
+          onChangeText={setUsername}
+          editable={!isLoading}
+        />
+        <TextInput
+          style={styles.input}
+          placeholder="Email"
+          placeholderTextColor="#6c7086"
+          autoCapitalize="none"
+          keyboardType="email-address"
+          value={email}
+          onChangeText={setEmail}
+          editable={!isLoading}
+        />
+        <TextInput
+          style={styles.input}
+          placeholder="Password"
+          placeholderTextColor="#6c7086"
+          secureTextEntry
+          value={password}
+          onChangeText={setPassword}
+          editable={!isLoading}
+        />
+        <TextInput
+          style={styles.input}
+          placeholder="Confirm Password"
+          placeholderTextColor="#6c7086"
+          secureTextEntry
+          value={confirmPassword}
+          onChangeText={setConfirmPassword}
+          editable={!isLoading}
+        />
 
-    const handleRegister = async () => {
-        setSubmitting(true);
-        const user = await register();
-        setSubmitting(false);
-        if (!user) return;
-        if (user.IsAcceptedAdmin) {
-            navigation.reset({index: 0, routes: [{name: 'Admin'}]});
-            return;
-        }
-        navigation.reset({index: 0, routes: [{name: 'Game'}]});
-    };
+        <View style={styles.typeRow}>
+          <Pressable
+            style={[styles.typeButton, accountType === 'Individual' && styles.typeButtonActive]}
+            onPress={() => setAccountType('Individual')}
+            disabled={isLoading}
+          >
+            <Text style={[styles.typeText, accountType === 'Individual' && styles.typeTextActive]}>
+              Individual
+            </Text>
+          </Pressable>
+          <Pressable
+            style={[styles.typeButton, accountType === 'Business/School' && styles.typeButtonActive]}
+            onPress={() => setAccountType('Business/School')}
+            disabled={isLoading}
+          >
+            <Text style={[styles.typeText, accountType === 'Business/School' && styles.typeTextActive]}>
+              Business
+            </Text>
+          </Pressable>
+        </View>
 
-//   View -----------------------
+        {error ? <Text style={styles.errorText}>{error}</Text> : null}
 
-    return (
-        <Screen style={styles.container}>
-            <View style={styles.content}>
-                <Text style={styles.title}>Create Account</Text>
+        <ButtonTray>
+          <Button
+            label={submitting ? 'Creating...' : 'Create Account'}
+            onClick={handleRegister}
+            styleButton={styles.submitButton}
+            styleLabel={styles.submitText}
+          />
+        </ButtonTray>
 
-                <TextInput
-                    style={styles.input}
-                    placeholder="Username"
-                    placeholderTextColor="#9ca3af"
-                    value={username}
-                    onChangeText={setUsername}
-                    editable={!isLoading}
-                />
-                <TextInput
-                    style={styles.input}
-                    placeholder="Email"
-                    placeholderTextColor="#9ca3af"
-                    autoCapitalize="none"
-                    keyboardType="email-address"
-                    value={email}
-                    onChangeText={setEmail}
-                    editable={!isLoading}
-                />
-                <TextInput
-                    style={styles.input}
-                    placeholder="Password"
-                    placeholderTextColor="#9ca3af"
-                    secureTextEntry
-                    value={password}
-                    onChangeText={setPassword}
-                    editable={!isLoading}
-                />
-                <TextInput
-                    style={styles.input}
-                    placeholder="Confirm Password"
-                    placeholderTextColor="#9ca3af"
-                    secureTextEntry
-                    value={confirmPassword}
-                    onChangeText={setConfirmPassword}
-                    editable={!isLoading}
-                />
-
-                <View style={styles.typeRow}>
-                    <Pressable
-                        style={[styles.typeButton, accountType === 'Individual' && styles.typeButtonActive]}
-                        onPress={() => setAccountType('Individual')}
-                        disabled={isLoading}
-                    >
-                        <Text style={[styles.typeText, accountType === 'Individual' && styles.typeTextActive]}>
-                            Individual
-                        </Text>
-                    </Pressable>
-                    <Pressable
-                        style={[styles.typeButton, accountType === 'Business/School' && styles.typeButtonActive]}
-                        onPress={() => setAccountType('Business/School')}
-                        disabled={isLoading}
-                    >
-                        <Text style={[styles.typeText, accountType === 'Business/School' && styles.typeTextActive]}>
-                            Business
-                        </Text>
-                    </Pressable>
-                </View>
-
-                {error ? <Text style={styles.errorText}>{error}</Text> : null}
-
-                <ButtonTray>
-                    <Button
-                        label={submitting ? 'Creating...' : 'Create Account'}
-                        onClick={handleRegister}
-                        styleButton={styles.submitButton}
-                        styleLabel={styles.submitText}
-                    />
-                </ButtonTray>
-
-                <Pressable onPress={() => navigation.navigate('Auth', {screen: 'LoginScreen'})}>
-                    <Text style={styles.linkText}>Back to Login</Text>
-                </Pressable>
-            </View>
-        </Screen>
-    );
+        <Pressable onPress={() => navigation.navigate('Auth', {screen: 'LoginScreen'})}>
+          <Text style={styles.linkText}>Back to Login</Text>
+        </Pressable>
+      </View>
+    </Screen>
+  );
 };
 
 const styles = StyleSheet.create({
-    container: {
-        justifyContent: 'center',
-    },
-    content: {
-        gap: 12,
-    },
-    title: {
-        fontSize: 24,
-        fontWeight: 'bold',
-        textAlign: 'center',
-        marginBottom: 10,
-    },
-    input: {
-        borderWidth: 1,
-        borderColor: '#d1d5db',
-        borderRadius: 8,
-        paddingHorizontal: 12,
-        paddingVertical: 10,
-        fontSize: 16,
-        color: '#1f2937',
-        backgroundColor: '#ffffff',
-    },
-    typeRow: {
-        flexDirection: 'row',
-        gap: 10,
-    },
-    typeButton: {
-        flex: 1,
-        borderWidth: 1,
-        borderColor: '#cbd5e1',
-        borderRadius: 8,
-        alignItems: 'center',
-        paddingVertical: 10,
-    },
-    typeButtonActive: {
-        backgroundColor: '#2563eb',
-        borderColor: '#2563eb',
-    },
-    typeText: {
-        color: '#1f2937',
-        fontWeight: '600',
-    },
-    typeTextActive: {
-        color: '#ffffff',
-    },
-    errorText: {
-        color: '#dc2626',
-        textAlign: 'center',
-        marginTop: 5,
-    },
-    submitButton: {
-        backgroundColor: '#2563eb',
-        borderColor: '#2563eb',
-    },
-    submitText: {
-        color: '#ffffff',
-        fontWeight: '600',
-    },
-    linkText: {
-        textAlign: 'center',
-        color: '#2563eb',
-        fontWeight: '600',
-        paddingVertical: 10,
-    },
+  container: {
+    justifyContent: 'center',
+  },
+  content: {
+    gap: 12,
+  },
+  title: {
+    fontSize: 24,
+    fontWeight: 'bold',
+    textAlign: 'center',
+    marginBottom: 10,
+    color: '#cdd6f4',
+  },
+  input: {
+    borderWidth: 1,
+    borderColor: '#45475a',
+    borderRadius: 8,
+    paddingHorizontal: 12,
+    paddingVertical: 10,
+    fontSize: 16,
+    color: '#cdd6f4',
+    backgroundColor: '#313244',
+  },
+  typeRow: {
+    flexDirection: 'row',
+    gap: 10,
+  },
+  typeButton: {
+    flex: 1,
+    borderWidth: 1,
+    borderColor: '#45475a',
+    borderRadius: 8,
+    alignItems: 'center',
+    paddingVertical: 10,
+  },
+  typeButtonActive: {
+    backgroundColor: '#bd93f9',
+    borderColor: '#bd93f9',
+  },
+  typeText: {
+    color: '#bac2de',
+    fontWeight: '600',
+  },
+  typeTextActive: {
+    color: '#1e1e2e',
+  },
+  errorText: {
+    color: '#D92800',
+    textAlign: 'center',
+    marginTop: 5,
+  },
+  submitButton: {
+    backgroundColor: '#bd93f9',
+    borderColor: '#bd93f9',
+  },
+  submitText: {
+    color: '#1e1e2e',
+    fontWeight: '600',
+  },
+  linkText: {
+    textAlign: 'center',
+    color: '#bd93f9',
+    fontWeight: '600',
+    paddingVertical: 10,
+  },
 });
 
 export default RegisterScreen;
diff --git a/src/components/screens/TeamScreen.js b/src/components/screens/TeamScreen.js
index 27992a3..f6ccfd1 100644
--- a/src/components/screens/TeamScreen.js
+++ b/src/components/screens/TeamScreen.js
@@ -7,43 +7,55 @@ import useGameHook from '../../hooks/useGameHook';
 import {getSession, setSessionTeam} from '../../hooks/SessionStore';
 
 const TeamScreen = () => {
-//   Initialisation ------------
+  const session = getSession();
+  const isAdmin = session.isAcceptedAdmin;
+  const isBusiness = Boolean(session.isBusiness);
+  const {getLobby, getSubgroup, getTeam, createTeam, joinTeamByCode, getTeamMembers, leaveTeam, getUser, updateUser, updateTeam, getAdminWaitlist} = useGameHook();
 
-    const session = getSession();
-    const isAdmin = session.isAcceptedAdmin;
-    const {getTeam, createTeam, joinTeamByCode, getTeamMembers, leaveTeam, getUser, updateUser, updateTeam, getAdminWaitlist} = useGameHook();
+  const [activeTid, setActiveTid] = useState(session.currentTid);
+  const [teamCode, setTeamCode] = useState('');
+  const [team, setTeam] = useState(null);
+  const [members, setMembers] = useState([]);
+  const [memberNames, setMemberNames] = useState({});
+  const [loading, setLoading] = useState(true);
+  const [teamsDisabled, setTeamsDisabled] = useState(false);
+  const [onAdminWaitlist, setOnAdminWaitlist] = useState(false);
+  const [editingName, setEditingName] = useState(false);
+  const [teamNameDraft, setTeamNameDraft] = useState('');
 
-//   State ----------------------
-
-    const [activeTid, setActiveTid] = useState(session.currentTid);
-    const [teamCode, setTeamCode] = useState('');
-    const [team, setTeam] = useState(null);
-    const [members, setMembers] = useState([]);
-    const [memberNames, setMemberNames] = useState({});
-    const [loading, setLoading] = useState(true);
-    const [onAdminWaitlist, setOnAdminWaitlist] = useState(false);
-    const [editingName, setEditingName] = useState(false);
-    const [teamNameDraft, setTeamNameDraft] = useState('');
-
-//   Handlers -------------------
-
-    const loadTeamData = async (tid) => {
-        const t = await getTeam(tid);
-        setTeam(t);
-        const ms = await getTeamMembers(tid);
-        setMembers(ms || []);
-        const names = {};
-        for (const m of (ms || [])) {
-            const u = await getUser(m.Uid);
-            if (u) names[m.Uid] = u.username;
-        }
-        setMemberNames(names);
-    };
+  const loadTeamData = async (tid) => {
+    const t = await getTeam(tid);
+    setTeam(t);
+    const ms = await getTeamMembers(tid);
+    setMembers(ms || []);
+    const names = {};
+    for (const m of (ms || [])) {
+      const u = await getUser(m.Uid);
+      if (u) names[m.Uid] = u.username;
+    }
+    setMemberNames(names);
+  };
 
     useEffect(() => {
         const load = async () => {
-            // Check if the user is on the admin waitlist
-            if (session.currentGid && !activeTid) {
+            if (!session.currentGid) { setLoading(false); return; }
+
+            const group = await getLobby(session.currentGid);
+            let teamsAreEnabled = Boolean(group?.TeamsEnabled);
+
+            if (isBusiness && session.currentSGid) {
+                const subgroup = await getSubgroup(session.currentSGid);
+                if (subgroup) teamsAreEnabled = Boolean(subgroup.TeamsEnabled);
+            }
+
+            if (!teamsAreEnabled) {
+                setTeamsDisabled(true);
+                setLoading(false);
+                return;
+            }
+            setTeamsDisabled(false);
+
+            if (!activeTid) {
                 const waitlist = await getAdminWaitlist(session.currentGid, session.currentUid);
                 if (waitlist.length > 0) {
                     setOnAdminWaitlist(true);
@@ -61,7 +73,11 @@ const TeamScreen = () => {
         if (!teamCode.trim()) return;
         // Force uppercase just in case a lowercase code is pasted
         const code = teamCode.trim().toUpperCase();
-        const result = await joinTeamByCode({JoinCode: code, Uid: session.currentUid});
+        const result = await joinTeamByCode({
+            JoinCode: code,
+            Uid: session.currentUid,
+            ExpectedSGid: session.currentSGid,
+        });
         if (!result) return;
 
         // If the server indicates this code matched the admin join code
@@ -126,6 +142,17 @@ const TeamScreen = () => {
         );
     }
 
+    if (teamsDisabled) {
+        return (
+            <Screen style={styles.center}>
+                <View style={styles.disabledWrap}>
+                    <Text style={styles.disabledTitle}>Teams Disabled</Text>
+                    <Text style={styles.disabledBody}>The admin has not enabled teams for this game.</Text>
+                </View>
+            </Screen>
+        );
+    }
+
     // Waiting for admin approval
     if (onAdminWaitlist) {
         return (
@@ -270,64 +297,65 @@ const TeamScreen = () => {
 const styles = StyleSheet.create({
     center: {justifyContent: 'center', alignItems: 'center'},
     container: {padding: 0},
-    // Shown when the user has not yet joined a game
-    notInGameText: {color: '#6b7280', fontSize: 15, fontWeight: '600', marginBottom: 16, textAlign: 'center', paddingHorizontal: 20},
-    inputDisabled: {backgroundColor: '#f3f4f6', opacity: 0.5},
+    disabledWrap: {paddingHorizontal: 30, alignItems: 'center', opacity: 0.45},
+    disabledTitle: {fontSize: 20, fontWeight: '700', color: '#ffffff', marginBottom: 10, textAlign: 'center'},
+    disabledBody: {fontSize: 15, color: '#ffffff', textAlign: 'center'},
+    notInGameText: {color: '#ffffff', fontSize: 15, fontWeight: '600', marginBottom: 16, textAlign: 'center', paddingHorizontal: 20},
+    inputDisabled: {backgroundColor: '#313244', opacity: 0.5},
     inputRow: {flexDirection: 'row', gap: 10, marginBottom: 15, width: '100%', paddingHorizontal: 20},
     fullRow: {width: '100%', paddingHorizontal: 20},
     codeInput: {
         flex: 1,
         borderWidth: 1,
-        borderColor: '#d1d5db',
+        borderColor: '#45475a',
         borderRadius: 8,
         paddingHorizontal: 12,
         paddingVertical: 10,
         fontSize: 16,
-        color: '#1f2937',
-        backgroundColor: '#ffffff',
+        color: '#ffffff',
+        backgroundColor: '#313244',
     },
-    joinButton: {backgroundColor: '#2563eb', borderColor: '#2563eb', flex: 0, paddingHorizontal: 20},
-    joinLabel: {color: '#ffffff', fontWeight: '600'},
-    createButton: {backgroundColor: '#16a34a', borderColor: '#16a34a'},
-    createLabel: {color: '#ffffff', fontWeight: '600'},
+    joinButton: {backgroundColor: '#bd93f9', borderColor: '#bd93f9', flex: 0, paddingHorizontal: 20},
+    joinLabel: {color: '#1e1e2e', fontWeight: '600'},
+    createButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1'},
+    createLabel: {color: '#1e1e2e', fontWeight: '600'},
     waitlistText: {
         fontSize: 18,
         fontWeight: '700',
-        color: '#374151',
+        color: '#ffffff',
         textAlign: 'center',
         paddingHorizontal: 30,
     },
     teamHeader: {
-        backgroundColor: '#374151',
+        backgroundColor: '#45475a',
         paddingVertical: 14,
         paddingHorizontal: 16,
         flexDirection: 'row',
         alignItems: 'center',
         gap: 8,
     },
-    teamCodeLabel: {color: '#d1d5db', fontSize: 15, fontWeight: '600'},
+    teamCodeLabel: {color: '#ffffff', fontSize: 15, fontWeight: '600'},
     teamCodeValue: {color: '#ffffff', fontSize: 17, fontWeight: '700', letterSpacing: 2},
-    // Team name / rename section
-    teamNameSection: {paddingHorizontal: 15, paddingVertical: 10, borderBottomWidth: 1, borderBottomColor: '#e5e7eb'},
-    teamNameText: {fontSize: 18, fontWeight: '700', color: '#1f2937', flex: 1},
+    teamNameSection: {paddingHorizontal: 15, paddingVertical: 10, borderBottomWidth: 1, borderBottomColor: '#45475a'},
+    teamNameText: {fontSize: 18, fontWeight: '700', color: '#ffffff', flex: 1},
     renameRow: {flexDirection: 'row', alignItems: 'center', gap: 8},
     renameInput: {
         flex: 1,
         borderWidth: 1,
-        borderColor: '#d1d5db',
+        borderColor: '#45475a',
         borderRadius: 8,
         paddingHorizontal: 12,
         paddingVertical: 8,
         fontSize: 16,
-        color: '#1f2937',
-        backgroundColor: '#ffffff',
+        color: '#ffffff',
+        backgroundColor: '#313244',
     },
-    renameButton: {backgroundColor: '#2563eb', borderColor: '#2563eb', flex: 0, minHeight: 36, paddingHorizontal: 14},
-    renameLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    renameSaveButton: {backgroundColor: '#16a34a', borderColor: '#16a34a', flex: 0, minHeight: 36, paddingHorizontal: 12},
-    renameSaveLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    renameCancelButton: {backgroundColor: '#6b7280', borderColor: '#6b7280', flex: 0, minHeight: 36, paddingHorizontal: 12},
-    renameCancelLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
+    renameButton: {backgroundColor: '#bd93f9', borderColor: '#bd93f9', flex: 0, minHeight: 36, paddingHorizontal: 14},
+    renameLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
+    renameSaveButton: {backgroundColor: '#a6e3a1', borderColor: '#a6e3a1', flex: 0, minHeight: 36, paddingHorizontal: 12},
+    renameSaveLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
+    renameCancelButton: {backgroundColor: '#6c7086', borderColor: '#6c7086', flex: 0, minHeight: 36, paddingHorizontal: 12},
+    renameCancelLabel: {color: '#cdd6f4', fontWeight: '600', fontSize: 13},
     memberList: {flex: 1, paddingHorizontal: 15, paddingTop: 10},
     memberRow: {
         flexDirection: 'row',
@@ -335,16 +363,15 @@ const styles = StyleSheet.create({
         alignItems: 'center',
     },
     memberInfo: {flex: 1, flexDirection: 'row', alignItems: 'center', gap: 6},
-    memberName: {fontSize: 16, color: '#1f2937', fontWeight: '600'},
-    leaderBadge: {fontSize: 12, color: '#2563eb', fontWeight: '700'},
-    kickButton: {backgroundColor: '#dc2626', borderColor: '#dc2626', minHeight: 36, flex: 0, paddingHorizontal: 14},
-    kickLabel: {color: '#ffffff', fontWeight: '600', fontSize: 13},
-    emptyText: {color: '#9ca3af', textAlign: 'center', marginTop: 30, fontSize: 14},
+    memberName: {fontSize: 16, color: '#ffffff', fontWeight: '600'},
+    leaderBadge: {fontSize: 12, color: '#bd93f9', fontWeight: '700'},
+    kickButton: {backgroundColor: '#D92800', borderColor: '#D92800', minHeight: 36, flex: 0, paddingHorizontal: 14},
+    kickLabel: {color: '#1e1e2e', fontWeight: '600', fontSize: 13},
+    emptyText: {color: '#ffffff', textAlign: 'center', marginTop: 30, fontSize: 14},
     leaveWrap: {paddingHorizontal: 0, paddingTop: 10, paddingBottom: 16},
-    leaveButton: {backgroundColor: '#dc2626', borderColor: '#dc2626'},
-    leaveLabel: {color: '#ffffff', fontWeight: '600'},
-    // Current user self-highlight (light green card)
-    selfCard: {backgroundColor: '#dcfce7', borderColor: '#86efac'},
+    leaveButton: {backgroundColor: '#D92800', borderColor: '#D92800'},
+    leaveLabel: {color: '#1e1e2e', fontWeight: '600'},
+    selfCard: {backgroundColor: 'rgba(166, 227, 161, 0.15)', borderColor: '#a6e3a1'},
 });
 
 export default TeamScreen;
diff --git a/src/hooks/useGameHook.js b/src/hooks/useGameHook.js
index f222521..aa6f429 100644
--- a/src/hooks/useGameHook.js
+++ b/src/hooks/useGameHook.js
@@ -41,6 +41,15 @@ const useGameHook = () => {
     return response.isSuccess ? response.result : null;
   };
 
+  // Look up a group by its Organisation Join Code
+  const getGroupByOrgCode = async (code) => {
+    const normalizedCode = String(code || '').trim().toUpperCase();
+    if (!normalizedCode) return null;
+    const response = await API.get(`${groupsEndpoint}?OrgJoinCode=${encodeURIComponent(normalizedCode)}`);
+    if (response.isSuccess && response.result.length > 0) return response.result[0];
+    return null;
+  };
+
   // Subgroups
   const getSubgroups = async (gid) => {
     const response = await API.get(`${subgroupsEndpoint}?Gid=${gid}`);
@@ -69,12 +78,21 @@ const useGameHook = () => {
 
   // Subgroup members
   const joinPrivateGame = async (payload) => {
-    const response = await API.post(subgroupMembersEndpoint, payload);
+    const data = {
+      JoinCode: payload.JoinCode,
+      Uid: payload.Uid,
+    };
+    if (payload.ExpectedGid !== undefined && payload.ExpectedGid !== null) {
+      data.ExpectedGid = payload.ExpectedGid;
+    }
+    const response = await API.post(subgroupMembersEndpoint, data);
     return response.isSuccess ? response.result : null;
   };
 
-  const getGroupMembers = async (gid) => {
-    const response = await API.get(`${subgroupMembersEndpoint}?Gid=${gid}`);
+  const getGroupMembers = async (gid, sgid = null) => {
+    let url = `${subgroupMembersEndpoint}?Gid=${gid}`;
+    if (sgid !== null && sgid !== undefined) url += `&SGid=${sgid}`;
+    const response = await API.get(url);
     return response.isSuccess ? response.result : [];
   };
 
@@ -84,8 +102,10 @@ const useGameHook = () => {
   };
 
   // Teams
-  const getTeams = async (gid) => {
-    const response = await API.get(`${teamsEndpoint}?Gid=${gid}`);
+  const getTeams = async (gid, sgid = null) => {
+    let url = `${teamsEndpoint}?Gid=${gid}`;
+    if (sgid !== null && sgid !== undefined) url += `&SGid=${sgid}`;
+    const response = await API.get(url);
     return response.isSuccess ? response.result : [];
   };
 
@@ -109,8 +129,21 @@ const useGameHook = () => {
     return response.isSuccess;
   };
 
+  const disbandTeams = async (gid) => {
+    const response = await API.post(`${teamsEndpoint}/disband?Gid=${gid}`, {});
+    return response.isSuccess;
+  };
+
   const joinTeamByCode = async (payload) => {
-    const response = await API.post(teamMembersEndpoint, payload);
+    const data = {
+      Uid: payload.Uid,
+    };
+    if (payload.JoinCode !== undefined) data.JoinCode = payload.JoinCode;
+    if (payload.Tid !== undefined) data.Tid = payload.Tid;
+    if (payload.ExpectedSGid !== undefined && payload.ExpectedSGid !== null) {
+      data.ExpectedSGid = payload.ExpectedSGid;
+    }
+    const response = await API.post(teamMembersEndpoint, data);
     return response.isSuccess ? response.result : null;
   };
 
@@ -163,9 +196,11 @@ const useGameHook = () => {
     return response.isSuccess;
   };
 
-  // Game reset — remove all caches for a game
-  const resetGame = async (gid) => {
-    const response = await API.post(`${cachesEndpoint}/reset?Gid=${gid}`, {});
+  // Game reset — remove all caches for a game (optionally scoped to a subgroup)
+  const resetGame = async (gid, sgid = null) => {
+    let url = `${cachesEndpoint}/reset?Gid=${gid}`;
+    if (sgid !== null) url += `&SGid=${sgid}`;
+    const response = await API.post(url, {});
     return response.isSuccess;
   };
 
@@ -175,6 +210,11 @@ const useGameHook = () => {
     return response.isSuccess;
   };
 
+  const resetTeamProgress = async (gid, tid) => {
+    const response = await API.post(`${cachesEndpoint}/reset-team/${tid}?Gid=${gid}`, {});
+    return response.isSuccess;
+  };
+
   // Admin waitlist
   const getAdminWaitlist = async (gid, uid = null) => {
     let url = `${adminWaitlistEndpoint}?Gid=${gid}`;
@@ -201,6 +241,7 @@ const useGameHook = () => {
     createPrivateGame,
     getLobby,
     updateGroup,
+    getGroupByOrgCode,
     getSubgroups,
     getSubgroup,
     createSubgroup,
@@ -214,6 +255,7 @@ const useGameHook = () => {
     createTeam,
     updateTeam,
     deleteTeam,
+    disbandTeams,
     joinTeamByCode,
     getTeamMembers,
     leaveTeam,
@@ -223,6 +265,7 @@ const useGameHook = () => {
     deleteCache,
     resetGame,
     resetPlayerProgress,
+    resetTeamProgress,
     getAdminWaitlist,
     approveAdmin,
     rejectAdmin,