diff --git a/backend/app/routers/auth.py b/backend/app/routers/auth.py
index 56db188..96dba62 100644
--- a/backend/app/routers/auth.py
+++ b/backend/app/routers/auth.py
@@ -31,7 +31,6 @@ router = APIRouter(prefix="/auth", tags=["auth"])
 class LoginRequest(BaseModel):
     username: str
     password: str
-    organization: str | None = None  # optional override; defaults to CASDOOR_ORGANIZATION
 
 
 @router.post("/login")
diff --git a/docs/casdoor-auth.md b/docs/casdoor-auth.md
index 39abae1..914a5ad 100644
--- a/docs/casdoor-auth.md
+++ b/docs/casdoor-auth.md
@@ -35,7 +35,7 @@ to re-run).
 ## 2. Login flow (in-page, no redirect)
 
 ```
-Browser ──► POST /api/v1/auth/login {username, password, organization?}
+Browser ──► POST /api/v1/auth/login {username, password}
               │
               ▼
 Backend  ──► POST http://casdoor:8000/api/login/oauth/access_token
diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index 796a15e..b52bfde 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -1460,7 +1460,6 @@ export const apiV26 = {
     login: async (body: {
       username: string;
       password: string;
-      organization?: string;
     }): Promise<{ access_token: string; expires_in: number | null; user: import("../store/auth").AuthUser }> => {
       const res = await request<{
         data: {
diff --git a/frontend/src/pages/Auth/LoginPage.tsx b/frontend/src/pages/Auth/LoginPage.tsx
index 9331c9a..548fcb8 100644
--- a/frontend/src/pages/Auth/LoginPage.tsx
+++ b/frontend/src/pages/Auth/LoginPage.tsx
@@ -1,14 +1,14 @@
 import { useEffect, useMemo, useState } from "react";
 import { useNavigate } from "react-router-dom";
 import { toast } from "sonner";
-import { ClipboardList, Loader2, Lock, ShieldCheck, Wrench, X } from "lucide-react";
+import { ClipboardList, Eye, EyeOff, Loader2, Lock, ShieldCheck, Wrench, X } from "lucide-react";
 import { api, apiV26 } from "../../lib/api";
 import { useAuthStore } from "../../store/auth";
 import type { Project } from "../../lib/types";
 
 // ============================================================
 // ورود به سامانه — Casdoor درون‌صفحه‌ای (بدون ریدایرکت)
-// فرم اصلی: Username / Password / Organization (اختیاری) →
+// فرم اصلی: Username / Password →
 //   POST /api/v1/auth/login (بک‌اند با grant_type=password از
 //   Casdoor توکن می‌گیرد و نقش را از جدول users خودمان برمی‌گرداند)
 // حالت توسعه (فقط ادمین — سوپر یوزر) — چرخه‌ی ۳ مرحله‌ای:
@@ -36,7 +36,7 @@ export function LoginPage() {
   // ---- فرم اصلی (Casdoor) ----
   const [username, setUsername] = useState("");
   const [password, setPassword] = useState("");
-  const [organization, setOrganization] = useState("");
+  const [showPassword, setShowPassword] = useState(false);
   const [loading, setLoading] = useState(false);
 
   // ---- پنل حالت توسعه (۳ مرحله) ----
@@ -71,7 +71,6 @@ export function LoginPage() {
       const { access_token, user } = await apiV26.auth.login({
         username: username.trim(),
         password,
-        ...(organization.trim() ? { organization: organization.trim() } : {}),
       });
       if (!user.role) {
         toast.error("نقش شما هنوز در سیستم تعیین نشده است — با مدیر سیستم تماس بگیرید");
@@ -101,7 +100,6 @@ export function LoginPage() {
       const { user: adminUser } = await apiV26.auth.login({
         username: devAdminUser.trim(),
         password: devAdminPass,
-        ...(organization.trim() ? { organization: organization.trim() } : {}),
       });
       if (adminUser.role !== "admin") {
         toast.error("حالت توسعه فقط برای ادمین (سوپر یوزر) در دسترس است");
@@ -298,30 +296,33 @@ export function LoginPage() {
               <label className="mb-1 block text-[12px] font-semibold text-muted" htmlFor="login-password">
                 رمز عبور
               </label>
-              <input
-                id="login-password"
-                type="password"
-                autoComplete="current-password"
-                dir="ltr"
-                className="h-10 w-full rounded-lg border border-line bg-panel px-3 text-left text-sm shadow-sm placeholder:text-muted/60 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-accent/40"
-                placeholder="••••••"
-                value={password}
-                onChange={(e) => setPassword(e.target.value)}
-              />
-            </div>
-            <div className="field">
-              <label className="mb-1 block text-[12px] font-semibold text-muted" htmlFor="login-org">
-                سازمان (اختیاری)
-              </label>
-              <input
-                id="login-org"
-                type="text"
-                dir="ltr"
-                className="h-10 w-full rounded-lg border border-line bg-panel px-3 text-left text-sm shadow-sm placeholder:text-muted/60 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-accent/40"
-                placeholder="inventory"
-                value={organization}
-                onChange={(e) => setOrganization(e.target.value)}
-              />
+              <div className="relative">
+                <input
+                  id="login-password"
+                  type={showPassword ? "text" : "password"}
+                  autoComplete="current-password"
+                  dir="ltr"
+                  className="h-10 w-full rounded-lg border border-line bg-panel px-3 pr-10 text-left text-sm shadow-sm placeholder:text-muted/60 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-accent/40"
+                  placeholder="••••••"
+                  value={password}
+                  onChange={(e) => setPassword(e.target.value)}
+                />
+                <button
+                  type="button"
+                  onClick={() => setShowPassword((v) => !v)}
+                  aria-label={showPassword ? "Hide password" : "Show password"}
+                  aria-pressed={showPassword}
+                  aria-controls="login-password"
+                  title={showPassword ? "پنهان کردن رمز" : "نمایش رمز"}
+                  className="absolute inset-y-0 right-0 flex cursor-pointer items-center rounded-lg px-3 text-muted transition-colors hover:text-ink focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-accent/40"
+                >
+                  {showPassword ? (
+                    <EyeOff className="h-4 w-4" aria-hidden="true" />
+                  ) : (
+                    <Eye className="h-4 w-4" aria-hidden="true" />
+                  )}
+                </button>
+              </div>
             </div>
             <button
               type="submit"