diff --git a/DysonNetwork.Pass/Client/bun.lock b/DysonNetwork.Pass/Client/bun.lock
index f4ffe7d..6d0070b 100644
--- a/DysonNetwork.Pass/Client/bun.lock
+++ b/DysonNetwork.Pass/Client/bun.lock
@@ -4,6 +4,7 @@
     "": {
       "name": "@solar-network/pass",
       "dependencies": {
+        "@fingerprintjs/fingerprintjs": "^4.6.2",
         "@fontsource-variable/nunito": "^5.2.6",
         "@tailwindcss/vite": "^4.1.11",
         "aspnet-prerendering": "^3.0.1",
@@ -131,6 +132,8 @@
 
     "@eslint/plugin-kit": ["@eslint/plugin-kit@0.3.3", "", { "dependencies": { "@eslint/core": "^0.15.1", "levn": "^0.4.1" } }, "sha512-1+WqvgNMhmlAambTvT3KPtCl/Ibr68VldY2XY40SL1CE0ZXiakFR/cbTspaF5HsnpDMvcYYoJHfl4980NBjGag=="],
 
+    "@fingerprintjs/fingerprintjs": ["@fingerprintjs/fingerprintjs@4.6.2", "", { "dependencies": { "tslib": "^2.4.1" } }, "sha512-g8mXuqcFKbgH2CZKwPfVtsUJDHyvcgIABQI7Y0tzWEFXpGxJaXuAuzlifT2oTakjDBLTK4Gaa9/5PERDhqUjtw=="],
+
     "@fontsource-variable/nunito": ["@fontsource-variable/nunito@5.2.6", "", {}, "sha512-dGYTQ0Hl94jjfMraYefrURHGH8fk/vL/1zYAZGofiPJVs6C0OkM8T87Te5Gwrbe6HG/XEMm5lib8AqasTN3ucw=="],
 
     "@humanfs/core": ["@humanfs/core@0.19.1", "", {}, "sha512-5DyQ4+1JEUzejeK1JGICcideyfUbGixgS9jNgex5nqkW+cY7WZhxBigmieN5Qnw9ZosSNVC9KQKyb+GUaGyKUA=="],
diff --git a/DysonNetwork.Pass/Client/package.json b/DysonNetwork.Pass/Client/package.json
index 622bd58..f20db8b 100644
--- a/DysonNetwork.Pass/Client/package.json
+++ b/DysonNetwork.Pass/Client/package.json
@@ -15,6 +15,7 @@
     "format": "prettier --write src/"
   },
   "dependencies": {
+    "@fingerprintjs/fingerprintjs": "^4.6.2",
     "@fontsource-variable/nunito": "^5.2.6",
     "@tailwindcss/vite": "^4.1.11",
     "aspnet-prerendering": "^3.0.1",
diff --git a/DysonNetwork.Pass/Client/src/router/index.ts b/DysonNetwork.Pass/Client/src/router/index.ts
index 8b755e6..6f32e4f 100644
--- a/DysonNetwork.Pass/Client/src/router/index.ts
+++ b/DysonNetwork.Pass/Client/src/router/index.ts
@@ -17,7 +17,12 @@ const router = createRouter({
       path: '/spells/:word',
       name: 'spells',
       component: () => import('../views/spells.vue'),
-    }
+    },
+    {
+      path: '/login',
+      name: 'login',
+      component: () => import('../views/login.vue'),
+    },
   ],
 })
 
diff --git a/DysonNetwork.Pass/Client/src/views/login.vue b/DysonNetwork.Pass/Client/src/views/login.vue
index e69de29..d4b2315 100644
--- a/DysonNetwork.Pass/Client/src/views/login.vue
+++ b/DysonNetwork.Pass/Client/src/views/login.vue
@@ -0,0 +1,342 @@
+<script setup lang="ts">
+import { ref, onMounted, computed } from 'vue'
+import { NCard, NSpace, NInput, NButton, NSpin, NAlert, NProgress } from 'naive-ui'
+import { useRouter } from 'vue-router'
+import FingerprintJS from '@fingerprintjs/fingerprintjs'
+
+// State management
+const stage = ref<'find-account' | 'select-factor' | 'enter-code' | 'token-exchange'>(
+  'find-account',
+)
+const isLoading = ref(false)
+const error = ref<string | null>(null)
+
+// Stage 1: Find Account
+const accountIdentifier = ref('')
+const deviceId = ref('')
+
+// Stage 2 & 3: Challenge
+const challenge = ref<any>(null)
+const factors = ref<any[]>([])
+const selectedFactorId = ref<string | null>(null)
+const password = ref('') // Used for password or verification code
+
+const router = useRouter()
+
+// Generate deviceId based on browser fingerprint
+onMounted(async () => {
+  const fp = await FingerprintJS.load()
+  const result = await fp.get()
+  deviceId.value = result.visitorId
+  localStorage.setItem('deviceId', deviceId.value)
+})
+
+const selectedFactor = computed(() => {
+  if (!selectedFactorId.value) return null
+  return factors.value.find((f) => f.id === selectedFactorId.value)
+})
+
+async function handleFindAccount() {
+  if (!accountIdentifier.value) {
+    error.value = 'Please enter your email or username.'
+    return
+  }
+  isLoading.value = true
+  error.value = null
+
+  try {
+    const response = await fetch('/api/auth/challenge', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        platform: 1,
+        account: accountIdentifier.value,
+        device_id: deviceId.value,
+      }),
+    })
+
+    if (!response.ok) {
+      const message = await response.text()
+      throw new Error(message || 'Account not found.')
+    }
+
+    challenge.value = await response.json()
+    await getFactors()
+    stage.value = 'select-factor'
+  } catch (e: any) {
+    error.value = e.message
+  } finally {
+    isLoading.value = false
+  }
+}
+
+async function getFactors() {
+  isLoading.value = true
+  error.value = null
+  try {
+    const response = await fetch(`/api/auth/challenge/${challenge.value.id}/factors`)
+    if (!response.ok) {
+      throw new Error('Could not fetch authentication factors.')
+    }
+    const availableFactors = await response.json()
+    factors.value = availableFactors.filter(
+      (f: any) => !challenge.value.blacklist_factors.includes(f.id),
+    )
+    if (factors.value.length > 0) {
+      selectedFactorId.value = null // Let user choose
+    } else if (challenge.value.step_remain > 0) {
+      error.value =
+        'No more available authentication factors, but authentication is not complete. Please contact support.'
+    }
+  } catch (e: any) {
+    error.value = e.message
+  } finally {
+    isLoading.value = false
+  }
+}
+
+async function requestVerificationCode(hint: string | null) {
+  if (!selectedFactorId.value) return
+
+  const isResend = stage.value === 'enter-code'
+  if (isResend) isLoading.value = true
+  error.value = null
+
+  try {
+    const response = await fetch(
+      `/api/auth/challenge/${challenge.value.id}/factors/${selectedFactorId.value}`,
+      {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(hint),
+      },
+    )
+    if (!response.ok) {
+      const message = await response.text()
+      throw new Error(message || 'Failed to send code.')
+    }
+  } catch (e: any) {
+    error.value = e.message
+    throw e // Rethrow to be handled by caller
+  } finally {
+    if (isResend) isLoading.value = false
+  }
+}
+
+async function handleFactorSelected() {
+  if (!selectedFactor.value) {
+    error.value = 'Please select an authentication method.'
+    return
+  }
+
+  // For password or TOTP, just move to the next step
+  if (selectedFactor.value.type === 0 || selectedFactor.value.type === 2) {
+    stage.value = 'enter-code'
+    return
+  }
+
+  // For email, send the code first
+  if (selectedFactor.value.type === 1) {
+    isLoading.value = true
+    error.value = null
+    try {
+      await requestVerificationCode(selectedFactor.value.contact)
+      stage.value = 'enter-code'
+    } catch {
+      // Error is already set by requestVerificationCode
+    } finally {
+      isLoading.value = false
+    }
+  }
+}
+
+async function handleVerifyFactor() {
+  if (!selectedFactorId.value || !password.value) {
+    error.value = 'Please enter your password/code.'
+    return
+  }
+  isLoading.value = true
+  error.value = null
+
+  try {
+    const response = await fetch(`/api/auth/challenge/${challenge.value.id}`, {
+      method: 'PATCH',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        factor_id: selectedFactorId.value,
+        password: password.value,
+      }),
+    })
+
+    if (!response.ok) {
+      const message = await response.text()
+      throw new Error(message || 'Verification failed.')
+    }
+
+    challenge.value = await response.json()
+    password.value = ''
+
+    if (challenge.value.step_remain === 0) {
+      stage.value = 'token-exchange'
+      await exchangeToken()
+    } else {
+      await getFactors()
+      stage.value = 'select-factor' // MFA step
+    }
+  } catch (e: any) {
+    error.value = e.message
+  } finally {
+    isLoading.value = false
+  }
+}
+
+async function exchangeToken() {
+  isLoading.value = true
+  error.value = null
+  try {
+    const response = await fetch('/api/auth/token', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        grant_type: 'authorization_code',
+        code: challenge.value.id,
+      }),
+    })
+
+    if (!response.ok) {
+      const message = await response.text()
+      throw new Error(message || 'Token exchange failed.')
+    }
+
+    const { token } = await response.json()
+    localStorage.setItem('authToken', token)
+    await router.push('/')
+  } catch (e: any) {
+    error.value = e.message
+    stage.value = 'select-factor' // Go back if token exchange fails
+  } finally {
+    isLoading.value = false
+  }
+}
+
+function getFactorName(factorType: number) {
+  switch (factorType) {
+    case 0:
+      return 'Password'
+    case 1:
+      return 'Email'
+    case 2:
+      return 'Authenticator App'
+    default:
+      return 'Unknown Factor'
+  }
+}
+</script>
+
+<template>
+  <div class="flex items-center justify-center h-full">
+    <n-card class="w-full max-w-md" title="Login">
+      <n-spin :show="isLoading">
+        <n-space vertical>
+          <!-- Stage 1: Find Account -->
+          <div v-if="stage === 'find-account'">
+            <p>Welcome back!</p>
+            <p class="mb-4">Login with your Solarpass.</p>
+            <p class="mb-4">Enter your account identifier to continue.</p>
+            <n-input
+              v-model:value="accountIdentifier"
+              placeholder="Email or Username"
+              size="large"
+              @keydown.enter="handleFindAccount"
+              class="mb-4"
+            />
+            <n-button type="primary" block class="mt-4" size="large" @click="handleFindAccount">
+              Continue
+            </n-button>
+          </div>
+
+          <!-- Stage 2: Select Factor -->
+          <div v-if="stage === 'select-factor' && challenge">
+            <div class="flex items-center mb-4 gap-3">
+              <span class="flex-shrink-1">Completeness</span>
+              <n-progress
+                type="line"
+                :percentage="(1 - challenge.step_remain / challenge.step_total) * 100"
+                indicator-placement="inside"
+                class="flex-1"
+              />
+            </div>
+
+            <div class="flex flex-col gap-3">
+              <n-card
+                v-for="factor in factors"
+                :key="factor.id"
+                size="small"
+                hoverable
+                class="cursor-pointer"
+                @click="
+                  () => {
+                    selectedFactorId = factor.id
+                    handleFactorSelected()
+                  }
+                "
+                :title="getFactorName(factor.type)"
+              ></n-card>
+            </div>
+            <p class="text-center text-xs opacity-75 mt-3">Select a method to authenticate</p>
+          </div>
+
+          <!-- Stage 3: Enter Code -->
+          <div v-if="stage === 'enter-code' && selectedFactor">
+            <h3 class="mb-3">
+              Enter the {{ selectedFactor.type === 0 ? 'password' : 'verification code' }} to
+              continue.
+            </h3>
+            <p v-if="selectedFactor.type === 1">
+              A code has been sent to {{ selectedFactor.contact }}.
+            </p>
+            <p v-if="selectedFactor.type === 2">Enter the code from your authenticator app.</p>
+            <n-input
+              v-model:value="password"
+              type="password"
+              show-password-on="click"
+              :placeholder="selectedFactor.type === 0 ? 'Password' : 'Code'"
+              size="large"
+              class="mb-4"
+              @keydown.enter="handleVerifyFactor"
+            />
+            <n-space justify="end">
+              <n-button
+                v-if="selectedFactor.type === 1"
+                text
+                @click="requestVerificationCode(selectedFactor.contact)"
+              >
+                Resend Code
+              </n-button>
+            </n-space>
+            <n-button type="primary" block class="mt-4" size="large" @click="handleVerifyFactor">
+              Verify
+            </n-button>
+          </div>
+
+          <!-- Stage 4: Token Exchange -->
+          <div v-if="stage === 'token-exchange'">
+            <h3 class="mb-4">Finalizing Login</h3>
+            <n-spin />
+          </div>
+
+          <n-alert
+            v-if="error"
+            title="Error"
+            type="error"
+            closable
+            @after-hide="error = null"
+            class="mt-2"
+          >
+            {{ error }}
+          </n-alert>
+        </n-space>
+      </n-spin>
+    </n-card>
+  </div>
+</template>
diff --git a/DysonNetwork.Pass/DysonNetwork.Pass.csproj b/DysonNetwork.Pass/DysonNetwork.Pass.csproj
index 5099a9e..bc9dacf 100644
--- a/DysonNetwork.Pass/DysonNetwork.Pass.csproj
+++ b/DysonNetwork.Pass/DysonNetwork.Pass.csproj
@@ -97,6 +97,7 @@
           <AutoGen>True</AutoGen>
           <DependentUpon>SharedResource.resx</DependentUpon>
         </Compile>
+        <Compile Remove="Client\**" />
     </ItemGroup>
 
     <ItemGroup>
@@ -132,6 +133,7 @@
           <Generator>ResXFileCodeGenerator</Generator>
           <LastGenOutput>SharedResource.Designer.cs</LastGenOutput>
         </EmbeddedResource>
+        <EmbeddedResource Remove="Client\**" />
     </ItemGroup>
 
     <ItemGroup>
@@ -154,12 +156,19 @@
       <_ContentIncludedByDefault Remove="Pages\Shared\_Layout.cshtml" />
       <_ContentIncludedByDefault Remove="Pages\Checkpoint\CheckpointPage.cshtml" />
       <_ContentIncludedByDefault Remove="Pages\Spell\MagicSpellPage.cshtml" />
+      <_ContentIncludedByDefault Remove="Client\.prettierrc.json" />
+      <_ContentIncludedByDefault Remove="Client\package.json" />
+      <_ContentIncludedByDefault Remove="Client\tsconfig.app.json" />
+      <_ContentIncludedByDefault Remove="Client\tsconfig.json" />
+      <_ContentIncludedByDefault Remove="Client\tsconfig.node.json" />
     </ItemGroup>
 
     <ItemGroup>
-      <Folder Include="Client\public\" />
-      <Folder Include="Client\src\components\" />
-      <Folder Include="Client\src\stores\" />
+      <Content Remove="Client\**" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <None Remove="Client\**" />
     </ItemGroup>
 
 </Project>