diff --git a/src/components/AdminSidebar.js b/src/components/AdminSidebar.js
index fc70405..ffc10bf 100644
--- a/src/components/AdminSidebar.js
+++ b/src/components/AdminSidebar.js
@@ -1,5 +1,6 @@
 import React, { useState, useEffect } from 'react';
 import { Link, useLocation, useNavigate } from 'react-router-dom';
+import { useTheme } from 'next-themes';
 import { useAuth } from '../context/AuthContext';
 import api from '../utils/api';
 import { Badge } from './ui/badge';
@@ -23,16 +24,20 @@ import {
   HardDrive,
   Repeat,
   Heart,
+  Sun,
+  Moon,
 } from 'lucide-react';
 
 const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
   const location = useLocation();
   const navigate = useNavigate();
   const { user, logout } = useAuth();
+  const { theme, setTheme } = useTheme();
   const [pendingCount, setPendingCount] = useState(0);
   const [storageUsed, setStorageUsed] = useState(0);
   const [storageLimit, setStorageLimit] = useState(0);
   const [storagePercentage, setStoragePercentage] = useState(0);
+  const isDark = theme === 'dark';
 
   // Fetch pending approvals count
   useEffect(() => {
@@ -86,6 +91,10 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
     navigate('/login');
   };
 
+  const handleThemeToggle = () => {
+    setTheme(isDark ? 'light' : 'dark');
+  };
+
   const navItems = [
     {
       name: 'Dashboard',
@@ -211,7 +220,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
         >
           {/* Active border */}
           {active && !item.disabled && (
-            <div className="absolute left-0 top-0 bottom-0 w-1 bg-[#ff9e77] rounded-r" />
+            <div className="absolute left-0 top-0 bottom-0 w-1 bg-accent rounded-r" />
           )}
 
           <Icon className="h-5 w-5 flex-shrink-0" />
@@ -225,7 +234,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
                 </Badge>
               )}
               {item.badge > 0 && !item.disabled && (
-                <Badge className="bg-[#ff9e77] text-white text-xs px-2 py-0.5">
+                <Badge className="bg-accent foreground text-xs px-2 py-0.5">
                   {item.badge}
                 </Badge>
               )}
@@ -234,7 +243,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
 
           {/* Badge when collapsed */}
           {!isOpen && item.badge > 0 && !item.disabled && (
-            <div className="absolute -top-1 -right-1 bg-[#ff9e77] text-white text-xs rounded-full h-5 w-5 flex items-center justify-center font-medium">
+            <div className="absolute -top-1 -right-1 bg-accent foreground text-xs rounded-full h-5 w-5 flex items-center justify-center font-medium">
               {item.badge}
             </div>
           )}
@@ -242,7 +251,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
 
         {/* Tooltip when collapsed */}
         {!isOpen && (
-          <div className="absolute left-full ml-2 top-1/2 -translate-y-1/2 px-3 py-2 bg-[#422268] text-white text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
+          <div className="absolute left-full ml-2 top-1/2 -translate-y-1/2 px-3 py-2 bg-primary foreground text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
             {item.name}
             {item.badge > 0 && ` (${item.badge})`}
           </div>
@@ -274,10 +283,10 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
             />
             {isOpen && (
               <div className="flex-1 min-w-0">
-                <h2 className="text-xl font-semibold text-[#422268]" style={{ fontFamily: "'Inter', sans-serif" }}>
+                <h2 className="text-xl font-semibold text-primary" style={{ fontFamily: "'Inter', sans-serif" }}>
                   Admin
                 </h2>
-                <p className="text-xs text-[#664fa3] group-hover:text-[#ff9e77] transition-colors" style={{ fontFamily: "'Nunito Sans', sans-serif" }}>
+                <p className="text-xs text-muted-foreground group-hover:text-accent transition-colors" style={{ fontFamily: "'Nunito Sans', sans-serif" }}>
                   View Public Site
                 </p>
               </div>
@@ -289,11 +298,11 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
             aria-label={isOpen ? 'Collapse sidebar' : 'Expand sidebar'}
           >
             {isMobile ? (
-              <Menu className="h-5 w-5 text-[#422268]" />
+              <Menu className="h-5 w-5 text-primary" />
             ) : isOpen ? (
-              <ChevronLeft className="h-5 w-5 text-[#422268]" />
+              <ChevronLeft className="h-5 w-5 text-primary" />
             ) : (
-              <ChevronRight className="h-5 w-5 text-[#422268]" />
+              <ChevronRight className="h-5 w-5 text-primary" />
             )}
           </button>
         </div>
@@ -306,7 +315,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
           {/* MEMBERSHIP Section */}
           {isOpen && (
             <div className="px-4 py-2 mt-6">
-              <h3 className="text-xs font-semibold text-[#664fa3] uppercase tracking-wider">
+              <h3 className="text-xs font-semibold text-muted-foreground uppercase tracking-wider">
                 Membership
               </h3>
             </div>
@@ -320,7 +329,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
           {/* FINANCIALS Section */}
           {isOpen && (
             <div className="px-4 py-2 mt-6">
-              <h3 className="text-xs font-semibold text-[#664fa3] uppercase tracking-wider">
+              <h3 className="text-xs font-semibold text-muted-foreground uppercase tracking-wider">
                 Financials
               </h3>
             </div>
@@ -334,7 +343,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
           {/* EVENTS & MEDIA Section */}
           {isOpen && (
             <div className="px-4 py-2 mt-6">
-              <h3 className="text-xs font-semibold text-[#664fa3] uppercase tracking-wider">
+              <h3 className="text-xs font-semibold text-muted-foreground uppercase tracking-wider">
                 Events & Media
               </h3>
             </div>
@@ -347,7 +356,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
           {/* DOCUMENTATION Section */}
           {isOpen && (
             <div className="px-4 py-2 mt-6">
-              <h3 className="text-xs font-semibold text-[#664fa3] uppercase tracking-wider">
+              <h3 className="text-xs font-semibold text-muted-foreground uppercase tracking-wider">
                 Documentation
               </h3>
             </div>
@@ -375,10 +384,10 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
                   {user.first_name?.[0]}{user.last_name?.[0]}
                 </div>
                 <div className="flex-1 min-w-0">
-                  <p className="text-sm font-medium text-[#422268] truncate" style={{ fontFamily: "'Inter', sans-serif" }}>
+                  <p className="text-sm font-medium text-primary truncate" style={{ fontFamily: "'Inter', sans-serif" }}>
                     {user.first_name} {user.last_name}
                   </p>
-                  <p className="text-xs text-[#664fa3] capitalize truncate" style={{ fontFamily: "'Nunito Sans', sans-serif" }}>
+                  <p className="text-xs text-muted-foreground capitalize truncate" style={{ fontFamily: "'Nunito Sans', sans-serif" }}>
                     {user.role}
                   </p>
                 </div>
@@ -388,13 +397,40 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
             </div>
           )}
 
+          {/* Theme Toggle */}
+          <div className="relative group">
+            <button
+              type="button"
+              onClick={handleThemeToggle}
+              aria-pressed={isDark}
+              aria-label={isDark ? 'Switch to light mode' : 'Switch to dark mode'}
+              className={`
+                flex items-center gap-3 px-4 py-3 rounded-lg w-full
+                text-primary hover:bg-muted/20 transition-colors
+                ${!isOpen && 'justify-center'}
+              `}
+            >
+              {isDark ? (
+                <Sun className="h-5 w-5 flex-shrink-0" />
+              ) : (
+                <Moon className="h-5 w-5 flex-shrink-0" />
+              )}
+              {isOpen && <span>{isDark ? 'Light mode' : 'Dark mode'}</span>}
+            </button>
+            {!isOpen && (
+              <div className="absolute left-full ml-2 top-1/2 -translate-y-1/2 px-3 py-2 bg-primary foreground text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
+                {isDark ? 'Light mode' : 'Dark mode'}
+              </div>
+            )}
+          </div>
+
           {/* Storage Usage Widget */}
           <div className="mb-2">
             {isOpen ? (
               <div className="px-4 py-3 bg-[#F8F7FB] rounded-lg">
                 <div className="flex items-center justify-between mb-2">
-                  <span className="text-sm font-medium text-[#422268]">Storage Usage</span>
-                  <span className="text-xs text-[#664fa3]">{storagePercentage}%</span>
+                  <span className="text-sm font-medium text-primary">Storage Usage</span>
+                  <span className="text-xs text-muted-foreground">{storagePercentage}%</span>
                 </div>
                 <div className="w-full bg-[#ddd8eb] rounded-full h-2">
                   <div
@@ -405,7 +441,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
                     style={{ width: `${storagePercentage}%` }}
                   />
                 </div>
-                <p className="text-xs text-[#664fa3] mt-1">
+                <p className="text-xs text-muted-foreground mt-1">
                   {formatBytes(storageUsed)} / {formatBytes(storageLimit)}
                 </p>
               </div>
@@ -414,13 +450,13 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
                 <div className="relative group">
                   <HardDrive className={`h-5 w-5 ${storagePercentage > 90 ? 'text-red-500' :
                     storagePercentage > 75 ? 'text-yellow-500' :
-                      'text-[#664fa3]'
+                      'text-muted-foreground'
                     }`} />
                   {storagePercentage > 75 && (
                     <div className="absolute -top-1 -right-1 bg-red-500 h-2 w-2 rounded-full" />
                   )}
                   {/* Tooltip */}
-                  <div className="absolute left-full ml-2 top-1/2 -translate-y-1/2 px-3 py-2 bg-[#422268] text-white text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
+                  <div className="absolute left-full ml-2 top-1/2 -translate-y-1/2 px-3 py-2 bg-primary foreground text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
                     Storage: {storagePercentage}%
                   </div>
                 </div>
@@ -433,7 +469,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
             onClick={handleLogout}
             className={`
               flex items-center gap-3 px-4 py-3 rounded-lg w-full
-              text-[#ff9e77] hover:bg-[#ff9e77]/10 transition-colors
+              text-accent hover:bg-accent/10 transition-colors
               ${!isOpen && 'justify-center'}
             `}
           >
@@ -444,7 +480,7 @@ const AdminSidebar = ({ isOpen, onToggle, isMobile }) => {
           {/* Logout tooltip when collapsed */}
           {!isOpen && (
             <div className="relative group">
-              <div className="absolute left-full ml-2 bottom-0 px-3 py-2 bg-[#422268] text-white text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
+              <div className="absolute left-full ml-2 bottom-0 px-3 py-2 bg-primary foreground text-sm rounded-lg opacity-0 group-hover:opacity-100 pointer-events-none transition-opacity whitespace-nowrap z-50">
                 Logout
               </div>
             </div>
diff --git a/src/index.js b/src/index.js
index 79282d0..a4a0d50 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,5 +1,6 @@
 import React from 'react';
 import ReactDOM from 'react-dom/client';
+import { ThemeProvider } from 'next-themes';
 import '@fontsource/fraunces/600.css';
 import '@fontsource/dm-sans/400.css';
 import '@fontsource/dm-sans/700.css';
@@ -9,6 +10,13 @@ import App from './App';
 const root = ReactDOM.createRoot(document.getElementById('root'));
 root.render(
   <React.StrictMode>
-    <App />
+    <ThemeProvider
+      attribute="data-theme"
+      defaultTheme="light"
+      enableSystem={false}
+      storageKey="admin-theme"
+    >
+      <App />
+    </ThemeProvider>
   </React.StrictMode>
 );
diff --git a/src/layouts/AdminLayout.js b/src/layouts/AdminLayout.js
index 668f6b9..a93df83 100644
--- a/src/layouts/AdminLayout.js
+++ b/src/layouts/AdminLayout.js
@@ -1,9 +1,12 @@
 import React, { useState, useEffect } from 'react';
+import { useTheme } from 'next-themes';
 import AdminSidebar from '../components/AdminSidebar';
 
 const AdminLayout = ({ children }) => {
   const [sidebarOpen, setSidebarOpen] = useState(true);
   const [isMobile, setIsMobile] = useState(false);
+  const { theme } = useTheme();
+  const isDark = theme === 'dark';
 
   // Initialize sidebar state from localStorage
   useEffect(() => {
@@ -43,7 +46,7 @@ const AdminLayout = ({ children }) => {
   };
 
   return (
-    <div className="flex h-screen bg-white">
+    <div className={`flex h-screen bg-background ${isDark ? 'dark' : ''}`}>
       {/* Sidebar */}
       <AdminSidebar
         isOpen={sidebarOpen}