diff --git a/src/App.tsx b/src/App.tsx
index e66c51b..e714610 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -6,8 +6,27 @@ import Glance from './pages/Glance'
 import Infrastructure from './pages/Infrastructure'
 import BookNest from './pages/BookNest'
 import Settings from './pages/Settings'
+import Login from './pages/Login'
+import Enrollment from './pages/Enrollment'
+import { useAuth } from './lib/AuthContext'
 
 function App() {
+  const { status } = useAuth()
+
+  if (status === 'loading') {
+    return (
+      <div className="flex h-screen w-screen items-center justify-center bg-page">
+        <p style={{ color: '#7A7D85', fontSize: '13px' }}>Loading…</p>
+      </div>
+    )
+  }
+  if (status === 'needs-setup' || status === 'enrolling') return <Enrollment />
+  if (status === 'logged-out') return <Login />
+
+  return <Dashboard />
+}
+
+function Dashboard() {
   const [sidebarCollapsed, setSidebarCollapsed] = useState(false)
   const sidebarWidth = sidebarCollapsed ? 64 : 200
   const location = useLocation()
diff --git a/src/components/TopBar.tsx b/src/components/TopBar.tsx
index 483989f..1c24618 100644
--- a/src/components/TopBar.tsx
+++ b/src/components/TopBar.tsx
@@ -1,6 +1,7 @@
 import { useState, useRef, useEffect } from 'react'
 import { useLocation } from 'react-router-dom'
 import { Search, Bell, ChevronDown, User, Palette, LogOut, Shield, HelpCircle } from 'lucide-react'
+import { useAuth } from '../lib/AuthContext'
 
 const pageTitles: Record<string, string> = {
   '/': 'Glance',
@@ -15,6 +16,7 @@ const pageSubtitles: Record<string, string> = {
 }
 
 export default function TopBar() {
+  const { logout } = useAuth()
   const [userMenuOpen, setUserMenuOpen] = useState(false)
   const menuRef = useRef<HTMLDivElement>(null)
   const location = useLocation()
@@ -113,10 +115,13 @@ export default function TopBar() {
                 </a>
               </div>
               <div className="border-t border-border py-1">
-                <a href="#" className="flex items-center gap-2.5 px-3 py-2 text-[12px] text-danger hover:bg-page transition-colors no-underline">
+                <button
+                  onClick={logout}
+                  className="flex w-full items-center gap-2.5 px-3 py-2 text-[12px] text-danger hover:bg-page transition-colors cursor-pointer border-none bg-transparent text-left"
+                >
                   <LogOut size={14} />
                   <span>Sign Out</span>
-                </a>
+                </button>
               </div>
             </div>
           )}
diff --git a/src/lib/AuthContext.tsx b/src/lib/AuthContext.tsx
new file mode 100644
index 0000000..d37de0c
--- /dev/null
+++ b/src/lib/AuthContext.tsx
@@ -0,0 +1,83 @@
+import { createContext, useContext, useEffect, useState, type ReactNode } from 'react'
+import { api, getToken, setToken } from './api'
+
+type AuthStatus = 'loading' | 'needs-setup' | 'enrolling' | 'logged-out' | 'logged-in'
+
+interface AuthUser {
+  id: number
+  username: string
+  display_name: string | null
+  email: string | null
+  avatar_data_url: string | null
+}
+
+interface AuthContextValue {
+  status: AuthStatus
+  user: AuthUser | null
+  login: (username: string, password: string) => Promise<void>
+  completeSetup: (username: string, password: string) => Promise<void>
+  finishEnrollment: () => Promise<void>
+  logout: () => void
+}
+
+const AuthContext = createContext<AuthContextValue | null>(null)
+
+export function AuthProvider({ children }: { children: ReactNode }) {
+  const [status, setStatus] = useState<AuthStatus>('loading')
+  const [user, setUser] = useState<AuthUser | null>(null)
+
+  async function refresh() {
+    if (getToken()) {
+      try {
+        const { user } = await api.me()
+        setUser(user)
+        setStatus('logged-in')
+        return
+      } catch {
+        setToken(null)
+      }
+    }
+    const { needsSetup } = await api.getSetupStatus()
+    setStatus(needsSetup ? 'needs-setup' : 'logged-out')
+  }
+
+  useEffect(() => {
+    refresh()
+  }, [])
+
+  async function login(username: string, password: string) {
+    const { token } = await api.login(username, password)
+    setToken(token)
+    await refresh()
+  }
+
+  async function completeSetup(username: string, password: string) {
+    const { token } = await api.setup(username, password)
+    setToken(token)
+    const { user } = await api.me()
+    setUser(user)
+    setStatus('enrolling')
+  }
+
+  async function finishEnrollment() {
+    await refresh()
+  }
+
+  function logout() {
+    setToken(null)
+    setUser(null)
+    setStatus('logged-out')
+  }
+
+  return (
+    <AuthContext.Provider value={{ status, user, login, completeSetup, finishEnrollment, logout }}>
+      {children}
+    </AuthContext.Provider>
+  )
+}
+
+export function useAuth() {
+  const ctx = useContext(AuthContext)
+  if (!ctx) throw new Error('useAuth must be used within AuthProvider')
+  return ctx
+}
diff --git a/src/lib/api.ts b/src/lib/api.ts
new file mode 100644
index 0000000..84b0835
--- /dev/null
+++ b/src/lib/api.ts
@@ -0,0 +1,96 @@
+const TOKEN_KEY = 'archnest_token'
+
+export function getToken(): string | null {
+  return localStorage.getItem(TOKEN_KEY)
+}
+
+export function setToken(token: string | null) {
+  if (token) localStorage.setItem(TOKEN_KEY, token)
+  else localStorage.removeItem(TOKEN_KEY)
+}
+
+export class ApiError extends Error {
+  status: number
+  constructor(status: number, message: string) {
+    super(message)
+    this.status = status
+  }
+}
+
+export async function apiFetch<T>(path: string, options: RequestInit = {}): Promise<T> {
+  const token = getToken()
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+    ...(options.headers as Record<string, string> | undefined),
+  }
+  if (token) headers.Authorization = `Bearer ${token}`
+
+  const res = await fetch(`/api${path}`, { ...options, headers })
+
+  if (!res.ok) {
+    let message = res.statusText
+    try {
+      const body = await res.json()
+      message = body.error ?? message
+    } catch {
+      // ignore non-JSON error bodies
+    }
+    throw new ApiError(res.status, message)
+  }
+
+  if (res.status === 204) return undefined as T
+  return res.json() as Promise<T>
+}
+
+export const api = {
+  getSetupStatus: () => apiFetch<{ needsSetup: boolean }>('/system/setup-status'),
+  setup: (username: string, password: string) =>
+    apiFetch<{ token: string }>('/setup', { method: 'POST', body: JSON.stringify({ username, password }) }),
+  login: (username: string, password: string) =>
+    apiFetch<{ token: string }>('/auth/login', { method: 'POST', body: JSON.stringify({ username, password }) }),
+  me: () => apiFetch<{ user: { id: number; username: string; display_name: string | null; email: string | null; avatar_data_url: string | null } }>('/auth/me'),
+
+  listIntegrations: () => apiFetch<{ integrations: Integration[] }>('/integrations'),
+  createIntegration: (data: { type: string; name: string; config?: Record<string, string>; secrets?: Record<string, string> }) =>
+    apiFetch<{ integration: Integration }>('/integrations', { method: 'POST', body: JSON.stringify(data) }),
+  updateIntegration: (id: number, data: Partial<{ name: string; config: Record<string, string>; secrets: Record<string, string> }>) =>
+    apiFetch<{ integration: Integration }>(`/integrations/${id}`, { method: 'PUT', body: JSON.stringify(data) }),
+  deleteIntegration: (id: number) => apiFetch<void>(`/integrations/${id}`, { method: 'DELETE' }),
+  testIntegration: (id: number) => apiFetch<{ ok: boolean; message: string }>(`/integrations/${id}/test`, { method: 'POST' }),
+
+  listBookmarks: () => apiFetch<{ bookmarks: Bookmark[] }>('/bookmarks'),
+  listBookmarkCategories: () => apiFetch<{ categories: BookmarkCategory[] }>('/bookmarks/categories'),
+  createBookmark: (data: { categoryId?: number | null; title: string; url: string; icon?: string; favorite?: boolean }) =>
+    apiFetch<{ id: number }>('/bookmarks', { method: 'POST', body: JSON.stringify(data) }),
+  deleteBookmark: (id: number) => apiFetch<void>(`/bookmarks/${id}`, { method: 'DELETE' }),
+}
+
+export interface Integration {
+  id: number
+  type: string
+  name: string
+  enabled: boolean
+  status: string
+  config: Record<string, string>
+  lastCheckedAt: string | null
+  createdAt: string
+}
+
+export interface Bookmark {
+  id: number
+  category_id: number | null
+  title: string
+  url: string
+  icon: string | null
+  favorite: number
+  status: string
+  last_checked_at: string | null
+  created_at: string
+}
+
+export interface BookmarkCategory {
+  id: number
+  name: string
+  icon: string | null
+  sort_order: number
+}
diff --git a/src/main.tsx b/src/main.tsx
index ade9d64..a688069 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -3,11 +3,14 @@ import { createRoot } from 'react-dom/client'
 import { BrowserRouter } from 'react-router-dom'
 import './index.css'
 import App from './App.tsx'
+import { AuthProvider } from './lib/AuthContext'
 
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
     <BrowserRouter>
-      <App />
+      <AuthProvider>
+        <App />
+      </AuthProvider>
     </BrowserRouter>
   </StrictMode>,
 )
diff --git a/src/pages/Enrollment.tsx b/src/pages/Enrollment.tsx
new file mode 100644
index 0000000..c9e2259
--- /dev/null
+++ b/src/pages/Enrollment.tsx
@@ -0,0 +1,275 @@
+import { useState } from 'react'
+import { Server, Container, Network, Cloud, CloudCog, Activity, CloudSun, Check, ArrowRight } from 'lucide-react'
+import { useAuth } from '../lib/AuthContext'
+import { api, ApiError } from '../lib/api'
+
+const cardBase: React.CSSProperties = {
+  backgroundColor: 'rgba(10, 10, 12, 0.92)',
+  border: '1px solid rgba(200, 164, 52, 0.12)',
+  borderRadius: '14px',
+  padding: '32px',
+}
+
+const fieldLabel: React.CSSProperties = {
+  fontSize: '11px',
+  color: '#7A7D85',
+  marginBottom: '6px',
+  display: 'block',
+}
+
+const fieldInput: React.CSSProperties = {
+  width: '100%',
+  height: '36px',
+  borderRadius: '8px',
+  border: '1px solid rgba(200,164,52,0.12)',
+  backgroundColor: 'rgba(255,255,255,0.03)',
+  color: '#E8E6E0',
+  fontSize: '13px',
+  padding: '0 12px',
+  outline: 'none',
+}
+
+const goldButton: React.CSSProperties = {
+  height: '38px',
+  borderRadius: '8px',
+  border: 'none',
+  fontSize: '13px',
+  fontWeight: 600,
+  color: '#0A0B0D',
+  backgroundColor: '#C8A434',
+  boxShadow: '0 0 14px rgba(200,164,52,0.2)',
+  padding: '0 20px',
+}
+
+const integrationOptions = [
+  { type: 'proxmox', name: 'Proxmox', icon: Server },
+  { type: 'docker', name: 'Docker', icon: Container },
+  { type: 'netbird', name: 'NetBird', icon: Network },
+  { type: 'cloudflare', name: 'Cloudflare', icon: Cloud },
+  { type: 'aws', name: 'AWS', icon: CloudCog },
+  { type: 'uptime_kuma', name: 'Uptime Kuma', icon: Activity },
+  { type: 'weather', name: 'Weather API', icon: CloudSun },
+] as const
+
+export default function Enrollment() {
+  const { status, completeSetup, finishEnrollment } = useAuth()
+  const step = status === 'enrolling' ? 'connect' : 'account'
+
+  return (
+    <div className="flex h-screen w-screen items-center justify-center bg-page">
+      <div style={{ width: step === 'account' ? '380px' : '640px' }}>
+        {step === 'account' ? (
+          <AccountStep completeSetup={completeSetup} />
+        ) : (
+          <ConnectStep onFinish={finishEnrollment} />
+        )}
+      </div>
+    </div>
+  )
+}
+
+function AccountStep({
+  completeSetup,
+}: {
+  completeSetup: (username: string, password: string) => Promise<void>
+}) {
+  const [username, setUsername] = useState('')
+  const [password, setPassword] = useState('')
+  const [confirm, setConfirm] = useState('')
+  const [error, setError] = useState<string | null>(null)
+  const [submitting, setSubmitting] = useState(false)
+
+  async function handleSubmit(e: React.FormEvent) {
+    e.preventDefault()
+    setError(null)
+    if (password !== confirm) {
+      setError('Passwords do not match')
+      return
+    }
+    if (password.length < 8) {
+      setError('Password must be at least 8 characters')
+      return
+    }
+    setSubmitting(true)
+    try {
+      await completeSetup(username, password)
+    } catch (err) {
+      setError(err instanceof ApiError ? err.message : 'Setup failed')
+    } finally {
+      setSubmitting(false)
+    }
+  }
+
+  return (
+    <form onSubmit={handleSubmit} style={cardBase}>
+      <h1
+        style={{
+          fontSize: '20px',
+          fontWeight: 700,
+          letterSpacing: '1px',
+          textTransform: 'uppercase',
+          color: '#C8A434',
+          marginBottom: '4px',
+        }}
+      >
+        Welcome to ArchNest
+      </h1>
+      <p style={{ fontSize: '12px', color: '#7A7D85', marginBottom: '24px' }}>
+        Create your admin account to get started
+      </p>
+
+      <label style={fieldLabel}>Username</label>
+      <input style={fieldInput} value={username} onChange={(e) => setUsername(e.target.value)} autoFocus required />
+
+      <label style={{ ...fieldLabel, marginTop: '14px' }}>Password</label>
+      <input style={fieldInput} type="password" value={password} onChange={(e) => setPassword(e.target.value)} required />
+
+      <label style={{ ...fieldLabel, marginTop: '14px' }}>Confirm Password</label>
+      <input style={fieldInput} type="password" value={confirm} onChange={(e) => setConfirm(e.target.value)} required />
+
+      {error && <p style={{ fontSize: '12px', color: '#E74C3C', marginTop: '12px' }}>{error}</p>}
+
+      <button type="submit" disabled={submitting} style={{ ...goldButton, width: '100%', marginTop: '22px', opacity: submitting ? 0.6 : 1 }}>
+        {submitting ? 'Creating account…' : 'Create Account'}
+      </button>
+    </form>
+  )
+}
+
+function ConnectStep({ onFinish }: { onFinish: () => Promise<void> }) {
+  const [connected, setConnected] = useState<Set<string>>(new Set())
+  const [active, setActive] = useState<(typeof integrationOptions)[number] | null>(null)
+
+  return (
+    <div style={cardBase}>
+      <h1
+        style={{
+          fontSize: '18px',
+          fontWeight: 700,
+          letterSpacing: '1px',
+          textTransform: 'uppercase',
+          color: '#C8A434',
+          marginBottom: '4px',
+        }}
+      >
+        Connect Your Services
+      </h1>
+      <p style={{ fontSize: '12px', color: '#7A7D85', marginBottom: '24px' }}>
+        Add the integrations you want ArchNest to monitor. You can also do this later from Settings.
+      </p>
+
+      {active ? (
+        <ConnectForm
+          option={active}
+          onConnected={() => {
+            setConnected((prev) => new Set(prev).add(active.type))
+            setActive(null)
+          }}
+          onCancel={() => setActive(null)}
+        />
+      ) : (
+        <div className="grid grid-cols-3 gap-3">
+          {integrationOptions.map((opt) => {
+            const Icon = opt.icon
+            const isDone = connected.has(opt.type)
+            return (
+              <button
+                key={opt.type}
+                onClick={() => setActive(opt)}
+                className="flex flex-col items-center gap-2 cursor-pointer transition-colors"
+                style={{
+                  border: `1px solid ${isDone ? 'rgba(46,204,113,0.4)' : 'rgba(200,164,52,0.12)'}`,
+                  borderRadius: '10px',
+                  padding: '18px 8px',
+                  backgroundColor: 'rgba(255,255,255,0.02)',
+                }}
+              >
+                {isDone ? <Check size={20} color="#2ECC71" /> : <Icon size={20} color="#C8A434" />}
+                <span style={{ fontSize: '11px', color: '#E8E6E0' }}>{opt.name}</span>
+              </button>
+            )
+          })}
+        </div>
+      )}
+
+      {!active && (
+        <div className="flex justify-end" style={{ marginTop: '24px' }}>
+          <button
+            onClick={() => onFinish()}
+            className="cursor-pointer"
+            style={{ ...goldButton, display: 'inline-flex', alignItems: 'center', gap: '8px' }}
+          >
+            {connected.size > 0 ? 'Finish' : 'Skip for now'} <ArrowRight size={14} />
+          </button>
+        </div>
+      )}
+    </div>
+  )
+}
+
+function ConnectForm({
+  option,
+  onConnected,
+  onCancel,
+}: {
+  option: (typeof integrationOptions)[number]
+  onConnected: () => void
+  onCancel: () => void
+}) {
+  const [baseUrl, setBaseUrl] = useState('')
+  const [apiKey, setApiKey] = useState('')
+  const [error, setError] = useState<string | null>(null)
+  const [testResult, setTestResult] = useState<string | null>(null)
+  const [submitting, setSubmitting] = useState(false)
+
+  async function handleSubmit(e: React.FormEvent) {
+    e.preventDefault()
+    setError(null)
+    setTestResult(null)
+    setSubmitting(true)
+    try {
+      const { integration } = await api.createIntegration({
+        type: option.type,
+        name: option.name,
+        config: baseUrl ? { baseUrl } : {},
+        secrets: apiKey ? { apiKey } : {},
+      })
+      const result = await api.testIntegration(integration.id)
+      setTestResult(result.message)
+      if (result.ok) onConnected()
+    } catch (err) {
+      setError(err instanceof ApiError ? err.message : 'Failed to add integration')
+    } finally {
+      setSubmitting(false)
+    }
+  }
+
+  return (
+    <form onSubmit={handleSubmit}>
+      <p style={{ fontSize: '13px', color: '#E8E6E0', marginBottom: '16px', fontWeight: 600 }}>{option.name}</p>
+
+      <label style={fieldLabel}>Base URL</label>
+      <input style={fieldInput} value={baseUrl} onChange={(e) => setBaseUrl(e.target.value)} placeholder="https://..." />
+
+      <label style={{ ...fieldLabel, marginTop: '14px' }}>API Key (optional)</label>
+      <input style={fieldInput} type="password" value={apiKey} onChange={(e) => setApiKey(e.target.value)} />
+
+      {error && <p style={{ fontSize: '12px', color: '#E74C3C', marginTop: '12px' }}>{error}</p>}
+      {testResult && <p style={{ fontSize: '12px', color: '#7A7D85', marginTop: '12px' }}>{testResult}</p>}
+
+      <div className="flex gap-3" style={{ marginTop: '20px' }}>
+        <button type="submit" disabled={submitting} style={{ ...goldButton, opacity: submitting ? 0.6 : 1 }}>
+          {submitting ? 'Connecting…' : 'Connect'}
+        </button>
+        <button
+          type="button"
+          onClick={onCancel}
+          className="cursor-pointer"
+          style={{ height: '38px', borderRadius: '8px', border: '1px solid rgba(255,255,255,0.12)', background: 'transparent', color: '#7A7D85', fontSize: '13px', padding: '0 16px' }}
+        >
+          Cancel
+        </button>
+      </div>
+    </form>
+  )
+}
diff --git a/src/pages/Login.tsx b/src/pages/Login.tsx
new file mode 100644
index 0000000..92f4577
--- /dev/null
+++ b/src/pages/Login.tsx
@@ -0,0 +1,115 @@
+import { useState } from 'react'
+import { useAuth } from '../lib/AuthContext'
+import { ApiError } from '../lib/api'
+
+export default function Login() {
+  const { login } = useAuth()
+  const [username, setUsername] = useState('')
+  const [password, setPassword] = useState('')
+  const [error, setError] = useState<string | null>(null)
+  const [submitting, setSubmitting] = useState(false)
+
+  async function handleSubmit(e: React.FormEvent) {
+    e.preventDefault()
+    setError(null)
+    setSubmitting(true)
+    try {
+      await login(username, password)
+    } catch (err) {
+      setError(err instanceof ApiError ? err.message : 'Login failed')
+    } finally {
+      setSubmitting(false)
+    }
+  }
+
+  return (
+    <div className="flex h-screen w-screen items-center justify-center bg-page">
+      <form
+        onSubmit={handleSubmit}
+        style={{
+          width: '380px',
+          backgroundColor: 'rgba(10, 10, 12, 0.92)',
+          border: '1px solid rgba(200, 164, 52, 0.12)',
+          borderRadius: '14px',
+          padding: '32px',
+        }}
+      >
+        <h1
+          style={{
+            fontSize: '20px',
+            fontWeight: 700,
+            letterSpacing: '1px',
+            textTransform: 'uppercase',
+            color: '#C8A434',
+            marginBottom: '4px',
+          }}
+        >
+          ArchNest
+        </h1>
+        <p style={{ fontSize: '12px', color: '#7A7D85', marginBottom: '24px' }}>Sign in to your dashboard</p>
+
+        <label style={fieldLabel}>Username</label>
+        <input
+          style={fieldInput}
+          value={username}
+          onChange={(e) => setUsername(e.target.value)}
+          autoFocus
+          required
+        />
+
+        <label style={{ ...fieldLabel, marginTop: '14px' }}>Password</label>
+        <input
+          style={fieldInput}
+          type="password"
+          value={password}
+          onChange={(e) => setPassword(e.target.value)}
+          required
+        />
+
+        {error && (
+          <p style={{ fontSize: '12px', color: '#E74C3C', marginTop: '12px' }}>{error}</p>
+        )}
+
+        <button
+          type="submit"
+          disabled={submitting}
+          className="cursor-pointer transition-opacity"
+          style={{
+            width: '100%',
+            marginTop: '22px',
+            height: '38px',
+            borderRadius: '8px',
+            border: 'none',
+            fontSize: '13px',
+            fontWeight: 600,
+            color: '#0A0B0D',
+            backgroundColor: '#C8A434',
+            boxShadow: '0 0 14px rgba(200,164,52,0.2)',
+            opacity: submitting ? 0.6 : 1,
+          }}
+        >
+          {submitting ? 'Signing in…' : 'Sign In'}
+        </button>
+      </form>
+    </div>
+  )
+}
+
+const fieldLabel: React.CSSProperties = {
+  fontSize: '11px',
+  color: '#7A7D85',
+  marginBottom: '6px',
+  display: 'block',
+}
+
+const fieldInput: React.CSSProperties = {
+  width: '100%',
+  height: '36px',
+  borderRadius: '8px',
+  border: '1px solid rgba(200,164,52,0.12)',
+  backgroundColor: 'rgba(255,255,255,0.03)',
+  color: '#E8E6E0',
+  fontSize: '13px',
+  padding: '0 12px',
+  outline: 'none',
+}