diff --git a/src/components/auth/BannerAlert.tsx b/src/components/auth/BannerAlert.tsx
new file mode 100644
index 0000000..86aaad9
--- /dev/null
+++ b/src/components/auth/BannerAlert.tsx
@@ -0,0 +1,43 @@
+import { AlertCircle, CheckCircle, Info, XCircle } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+interface BannerAlertProps {
+  type: "info" | "success" | "warning" | "error";
+  title?: string;
+  message: string;
+  className?: string;
+}
+
+const icons = {
+  info: Info,
+  success: CheckCircle,
+  warning: AlertCircle,
+  error: XCircle,
+};
+
+const styles = {
+  info: "bg-accent/10 border-accent/20 text-accent",
+  success: "bg-success/10 border-success/20 text-success",
+  warning: "bg-warning/10 border-warning/20 text-warning",
+  error: "bg-destructive/10 border-destructive/20 text-destructive",
+};
+
+export function BannerAlert({ type, title, message, className }: BannerAlertProps) {
+  const Icon = icons[type];
+
+  return (
+    <div
+      className={cn(
+        "flex gap-3 p-4 rounded-lg border",
+        styles[type],
+        className
+      )}
+    >
+      <Icon className="w-5 h-5 shrink-0 mt-0.5" />
+      <div className="space-y-1">
+        {title && <p className="font-medium text-sm">{title}</p>}
+        <p className="text-sm opacity-90">{message}</p>
+      </div>
+    </div>
+  );
+}
diff --git a/src/components/auth/PasswordStrengthMeter.tsx b/src/components/auth/PasswordStrengthMeter.tsx
new file mode 100644
index 0000000..1f5a0f0
--- /dev/null
+++ b/src/components/auth/PasswordStrengthMeter.tsx
@@ -0,0 +1,94 @@
+import { useMemo } from "react";
+import { Check, X } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+interface PasswordStrengthMeterProps {
+  password: string;
+}
+
+interface PasswordRequirement {
+  label: string;
+  test: (password: string) => boolean;
+}
+
+const requirements: PasswordRequirement[] = [
+  { label: "At least 8 characters", test: (p) => p.length >= 8 },
+  { label: "Contains uppercase letter", test: (p) => /[A-Z]/.test(p) },
+  { label: "Contains lowercase letter", test: (p) => /[a-z]/.test(p) },
+  { label: "Contains number", test: (p) => /\d/.test(p) },
+  { label: "Contains special character", test: (p) => /[!@#$%^&*(),.?":{}|<>]/.test(p) },
+];
+
+export function PasswordStrengthMeter({ password }: PasswordStrengthMeterProps) {
+  const results = useMemo(() => {
+    return requirements.map((req) => ({
+      ...req,
+      met: req.test(password),
+    }));
+  }, [password]);
+
+  const strength = useMemo(() => {
+    const metCount = results.filter((r) => r.met).length;
+    if (metCount === 0) return { level: 0, label: "", color: "bg-muted" };
+    if (metCount <= 2) return { level: 1, label: "Weak", color: "bg-destructive" };
+    if (metCount <= 3) return { level: 2, label: "Fair", color: "bg-warning" };
+    if (metCount <= 4) return { level: 3, label: "Good", color: "bg-accent" };
+    return { level: 4, label: "Strong", color: "bg-success" };
+  }, [results]);
+
+  if (!password) return null;
+
+  return (
+    <div className="space-y-3">
+      {/* Strength bar */}
+      <div className="space-y-1.5">
+        <div className="flex gap-1">
+          {[1, 2, 3, 4].map((level) => (
+            <div
+              key={level}
+              className={cn(
+                "h-1.5 flex-1 rounded-full transition-colors",
+                level <= strength.level ? strength.color : "bg-muted"
+              )}
+            />
+          ))}
+        </div>
+        {strength.label && (
+          <p className={cn(
+            "text-xs font-medium",
+            strength.level <= 1 && "text-destructive",
+            strength.level === 2 && "text-warning",
+            strength.level === 3 && "text-accent",
+            strength.level === 4 && "text-success"
+          )}>
+            {strength.label}
+          </p>
+        )}
+      </div>
+
+      {/* Requirements checklist */}
+      <ul className="space-y-1">
+        {results.map((req, index) => (
+          <li
+            key={index}
+            className={cn(
+              "flex items-center gap-2 text-xs transition-colors",
+              req.met ? "text-success" : "text-muted-foreground"
+            )}
+          >
+            {req.met ? (
+              <Check className="w-3.5 h-3.5" />
+            ) : (
+              <X className="w-3.5 h-3.5" />
+            )}
+            {req.label}
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}
+
+export function isPasswordValid(password: string): boolean {
+  return requirements.every((req) => req.test(password));
+}
diff --git a/src/pages/auth/ForgotPasswordPage.tsx b/src/pages/auth/ForgotPasswordPage.tsx
index 55a94bd..e83ae8a 100644
--- a/src/pages/auth/ForgotPasswordPage.tsx
+++ b/src/pages/auth/ForgotPasswordPage.tsx
@@ -1,9 +1,10 @@
 import { useState } from "react";
 import { Link } from "react-router-dom";
-import { Mail, ArrowLeft, ArrowRight } from "lucide-react";
+import { Mail, ArrowLeft, ArrowRight, Loader2 } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
+import { BannerAlert } from "@/components/auth/BannerAlert";
 
 export default function ForgotPasswordPage() {
   const [email, setEmail] = useState("");
@@ -13,12 +14,15 @@ export default function ForgotPasswordPage() {
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
     setIsLoading(true);
+
+    // Mock API call - POST /api/auth/forgot-password
     setTimeout(() => {
       setIsLoading(false);
       setIsSubmitted(true);
     }, 1000);
   };
 
+  // Success state - always show neutral message (don't leak account existence)
   if (isSubmitted) {
     return (
       <div className="auth-card text-center">
@@ -30,19 +34,40 @@ export default function ForgotPasswordPage() {
           Check your email
         </h1>
         <p className="text-muted-foreground mt-2 mb-6">
-          If an account exists for {email}, you'll receive a password reset link shortly.
+          If an account exists for <span className="font-medium text-foreground">{email}</span>, 
+          you'll receive a password reset link shortly.
         </p>
 
-        <Link to="/login">
-          <Button variant="outline" className="w-full">
-            <ArrowLeft className="w-4 h-4 mr-2" />
-            Back to sign in
+        <BannerAlert
+          type="info"
+          message="For security reasons, we don't confirm whether an account exists. Check your spam folder if you don't see the email."
+          className="mb-6 text-left"
+        />
+
+        <div className="space-y-3">
+          <Link to="/login">
+            <Button variant="outline" className="w-full">
+              <ArrowLeft className="w-4 h-4 mr-2" />
+              Back to sign in
+            </Button>
+          </Link>
+
+          <Button 
+            variant="ghost" 
+            className="w-full"
+            onClick={() => {
+              setIsSubmitted(false);
+              setEmail("");
+            }}
+          >
+            Try a different email
           </Button>
-        </Link>
+        </div>
       </div>
     );
   }
 
+  // Request form
   return (
     <div className="auth-card">
       <div className="text-center mb-8">
@@ -50,7 +75,7 @@ export default function ForgotPasswordPage() {
           Forgot password?
         </h1>
         <p className="text-muted-foreground mt-2">
-          Enter your email and we'll send you a reset link
+          No worries, we'll send you reset instructions
         </p>
       </div>
 
@@ -67,13 +92,21 @@ export default function ForgotPasswordPage() {
               onChange={(e) => setEmail(e.target.value)}
               className="pl-10"
               required
+              autoComplete="email"
             />
           </div>
         </div>
 
-        <Button type="submit" className="w-full" disabled={isLoading}>
+        <Button 
+          type="submit" 
+          className="w-full" 
+          disabled={isLoading || !email.trim()}
+        >
           {isLoading ? (
-            "Sending..."
+            <>
+              <Loader2 className="w-4 h-4 mr-2 animate-spin" />
+              Sending...
+            </>
           ) : (
             <>
               Send reset link
@@ -84,7 +117,10 @@ export default function ForgotPasswordPage() {
       </form>
 
       <p className="text-center text-sm text-muted-foreground mt-6">
-        <Link to="/login" className="text-accent hover:underline font-medium inline-flex items-center">
+        <Link 
+          to="/login" 
+          className="text-accent hover:underline font-medium inline-flex items-center"
+        >
           <ArrowLeft className="w-4 h-4 mr-1" />
           Back to sign in
         </Link>
diff --git a/src/pages/auth/RegisterPage.tsx b/src/pages/auth/RegisterPage.tsx
index b9abb8d..5aaec8c 100644
--- a/src/pages/auth/RegisterPage.tsx
+++ b/src/pages/auth/RegisterPage.tsx
@@ -1,9 +1,13 @@
 import { useState } from "react";
 import { Link, useNavigate } from "react-router-dom";
-import { Mail, Lock, User, ArrowRight } from "lucide-react";
+import { Mail, Lock, User, ArrowRight, ArrowLeft } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
+import { PasswordStrengthMeter, isPasswordValid } from "@/components/auth/PasswordStrengthMeter";
+import { BannerAlert } from "@/components/auth/BannerAlert";
+
+type RegistrationState = "form" | "success" | "disabled";
 
 export default function RegisterPage() {
   const navigate = useNavigate();
@@ -12,20 +16,114 @@ export default function RegisterPage() {
   const [password, setPassword] = useState("");
   const [confirmPassword, setConfirmPassword] = useState("");
   const [isLoading, setIsLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [state, setState] = useState<RegistrationState>("form");
+
+  const passwordsMatch = password === confirmPassword;
+  const canSubmit = 
+    name.trim() && 
+    email.trim() && 
+    isPasswordValid(password) && 
+    passwordsMatch;
 
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
-    if (password !== confirmPassword) {
+    setError(null);
+
+    if (!passwordsMatch) {
+      setError("Passwords do not match");
       return;
     }
+
+    if (!isPasswordValid(password)) {
+      setError("Password does not meet requirements");
+      return;
+    }
+
     setIsLoading(true);
-    // Mock registration - will be replaced with actual auth
+
+    // Mock registration - will be replaced with actual API call
+    // POST /api/auth/register
     setTimeout(() => {
       setIsLoading(false);
-      navigate("/verify-email");
+      
+      // Simulate different responses
+      const mockResponse = "success" as RegistrationState | "error";
+      
+      if (mockResponse === "disabled") {
+        setState("disabled");
+      } else if (mockResponse === "error") {
+        setError("An error occurred. Please try again.");
+      } else {
+        setState("success");
+      }
     }, 1000);
   };
 
+  // Registration disabled state
+  if (state === "disabled") {
+    return (
+      <div className="auth-card text-center">
+        <div className="w-16 h-16 rounded-full bg-warning/10 flex items-center justify-center mx-auto mb-6">
+          <Lock className="w-8 h-8 text-warning" />
+        </div>
+
+        <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+          Registration unavailable
+        </h1>
+        <p className="text-muted-foreground mt-2 mb-6">
+          New account registration is currently invite-only. Please contact your administrator for an invitation.
+        </p>
+
+        <Link to="/login">
+          <Button variant="outline" className="w-full">
+            <ArrowLeft className="w-4 h-4 mr-2" />
+            Back to sign in
+          </Button>
+        </Link>
+      </div>
+    );
+  }
+
+  // Success state - email sent
+  if (state === "success") {
+    return (
+      <div className="auth-card text-center">
+        <div className="w-16 h-16 rounded-full bg-success/10 flex items-center justify-center mx-auto mb-6">
+          <Mail className="w-8 h-8 text-success" />
+        </div>
+
+        <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+          Check your email
+        </h1>
+        <p className="text-muted-foreground mt-2 mb-6">
+          We've sent a verification link to <span className="font-medium text-foreground">{email}</span>. 
+          Click the link to verify your account and get started.
+        </p>
+
+        <div className="space-y-3">
+          <Link to="/login">
+            <Button className="w-full">
+              Continue to sign in
+              <ArrowRight className="w-4 h-4 ml-2" />
+            </Button>
+          </Link>
+        </div>
+
+        <p className="text-sm text-muted-foreground mt-6">
+          Didn't receive the email?{" "}
+          <button 
+            onClick={() => setState("form")}
+            className="text-accent hover:underline font-medium"
+          >
+            Try again
+          </button>
+        </p>
+      </div>
+    );
+  }
+
+  // Registration form
   return (
     <div className="auth-card">
       <div className="text-center mb-8">
@@ -37,9 +135,17 @@ export default function RegisterPage() {
         </p>
       </div>
 
+      {error && (
+        <BannerAlert 
+          type="error" 
+          message={error} 
+          className="mb-6"
+        />
+      )}
+
       <form onSubmit={handleSubmit} className="space-y-4">
         <div className="space-y-2">
-          <Label htmlFor="name">Full name</Label>
+          <Label htmlFor="name">Display name</Label>
           <div className="relative">
             <User className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
             <Input
@@ -50,6 +156,7 @@ export default function RegisterPage() {
               onChange={(e) => setName(e.target.value)}
               className="pl-10"
               required
+              autoComplete="name"
             />
           </div>
         </div>
@@ -66,6 +173,7 @@ export default function RegisterPage() {
               onChange={(e) => setEmail(e.target.value)}
               className="pl-10"
               required
+              autoComplete="email"
             />
           </div>
         </div>
@@ -82,12 +190,10 @@ export default function RegisterPage() {
               onChange={(e) => setPassword(e.target.value)}
               className="pl-10"
               required
-              minLength={8}
+              autoComplete="new-password"
             />
           </div>
-          <p className="text-xs text-muted-foreground">
-            Must be at least 8 characters
-          </p>
+          <PasswordStrengthMeter password={password} />
         </div>
 
         <div className="space-y-2">
@@ -102,11 +208,19 @@ export default function RegisterPage() {
               onChange={(e) => setConfirmPassword(e.target.value)}
               className="pl-10"
               required
+              autoComplete="new-password"
             />
           </div>
+          {confirmPassword && !passwordsMatch && (
+            <p className="text-xs text-destructive">Passwords do not match</p>
+          )}
         </div>
 
-        <Button type="submit" className="w-full" disabled={isLoading}>
+        <Button 
+          type="submit" 
+          className="w-full" 
+          disabled={isLoading || !canSubmit}
+        >
           {isLoading ? (
             "Creating account..."
           ) : (
@@ -127,11 +241,11 @@ export default function RegisterPage() {
 
       <p className="text-center text-xs text-muted-foreground mt-4">
         By creating an account, you agree to our{" "}
-        <Link to="/terms" className="underline">
+        <Link to="/terms" className="underline hover:text-foreground">
           Terms of Service
         </Link>{" "}
         and{" "}
-        <Link to="/privacy" className="underline">
+        <Link to="/privacy" className="underline hover:text-foreground">
           Privacy Policy
         </Link>
       </p>
diff --git a/src/pages/auth/VerifyEmailPage.tsx b/src/pages/auth/VerifyEmailPage.tsx
index 97ad4d0..d126286 100644
--- a/src/pages/auth/VerifyEmailPage.tsx
+++ b/src/pages/auth/VerifyEmailPage.tsx
@@ -1,32 +1,198 @@
-import { Mail, RefreshCw } from "lucide-react";
+import { useState, useEffect } from "react";
+import { useSearchParams, Link } from "react-router-dom";
+import { Mail, CheckCircle, XCircle, Loader2, ArrowRight, RefreshCw } from "lucide-react";
 import { Button } from "@/components/ui/button";
-import { Link } from "react-router-dom";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { BannerAlert } from "@/components/auth/BannerAlert";
+
+type VerificationState = "verifying" | "success" | "error" | "resend";
 
 export default function VerifyEmailPage() {
+  const [searchParams] = useSearchParams();
+  const token = searchParams.get("token");
+  
+  const [state, setState] = useState<VerificationState>(token ? "verifying" : "resend");
+  const [errorMessage, setErrorMessage] = useState<string>("");
+  const [resendEmail, setResendEmail] = useState("");
+  const [isResending, setIsResending] = useState(false);
+  const [resendSuccess, setResendSuccess] = useState(false);
+
+  useEffect(() => {
+    if (token && state === "verifying") {
+      verifyToken(token);
+    }
+  }, [token, state]);
+
+  const verifyToken = async (verificationToken: string) => {
+    // Mock verification - POST /api/auth/verify-email?token=...
+    setTimeout(() => {
+      // Simulate different responses
+      const mockSuccess = Math.random() > 0.3; // 70% success rate for demo
+      
+      if (mockSuccess) {
+        setState("success");
+      } else {
+        setState("error");
+        setErrorMessage("This verification link has expired or is invalid.");
+      }
+    }, 1500);
+  };
+
+  const handleResendVerification = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setIsResending(true);
+    setResendSuccess(false);
+
+    // Mock resend - POST /api/auth/request-email-verification
+    setTimeout(() => {
+      setIsResending(false);
+      setResendSuccess(true);
+    }, 1000);
+  };
+
+  // Loading / Verifying state
+  if (state === "verifying") {
+    return (
+      <div className="auth-card text-center">
+        <div className="w-16 h-16 rounded-full bg-accent/10 flex items-center justify-center mx-auto mb-6">
+          <Loader2 className="w-8 h-8 text-accent animate-spin" />
+        </div>
+
+        <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+          Verifying your email
+        </h1>
+        <p className="text-muted-foreground mt-2">
+          Please wait while we confirm your email address...
+        </p>
+      </div>
+    );
+  }
+
+  // Success state
+  if (state === "success") {
+    return (
+      <div className="auth-card text-center">
+        <div className="w-16 h-16 rounded-full bg-success/10 flex items-center justify-center mx-auto mb-6">
+          <CheckCircle className="w-8 h-8 text-success" />
+        </div>
+
+        <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+          Email verified
+        </h1>
+        <p className="text-muted-foreground mt-2 mb-6">
+          Your email has been successfully verified. You can now sign in to your account.
+        </p>
+
+        <Link to="/login">
+          <Button className="w-full">
+            Continue to sign in
+            <ArrowRight className="w-4 h-4 ml-2" />
+          </Button>
+        </Link>
+      </div>
+    );
+  }
+
+  // Error state
+  if (state === "error") {
+    return (
+      <div className="auth-card text-center">
+        <div className="w-16 h-16 rounded-full bg-destructive/10 flex items-center justify-center mx-auto mb-6">
+          <XCircle className="w-8 h-8 text-destructive" />
+        </div>
+
+        <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+          Verification failed
+        </h1>
+        <p className="text-muted-foreground mt-2 mb-6">
+          {errorMessage}
+        </p>
+
+        <div className="space-y-3">
+          <Button 
+            variant="outline" 
+            className="w-full"
+            onClick={() => setState("resend")}
+          >
+            <RefreshCw className="w-4 h-4 mr-2" />
+            Resend verification email
+          </Button>
+          
+          <Link to="/login">
+            <Button variant="ghost" className="w-full">
+              Back to sign in
+            </Button>
+          </Link>
+        </div>
+      </div>
+    );
+  }
+
+  // Resend verification form
   return (
-    <div className="auth-card text-center">
-      <div className="w-16 h-16 rounded-full bg-accent/10 flex items-center justify-center mx-auto mb-6">
-        <Mail className="w-8 h-8 text-accent" />
+    <div className="auth-card">
+      <div className="text-center mb-8">
+        <div className="w-16 h-16 rounded-full bg-accent/10 flex items-center justify-center mx-auto mb-6">
+          <Mail className="w-8 h-8 text-accent" />
+        </div>
+
+        <h1 className="text-2xl font-semibold text-foreground tracking-tight">
+          Resend verification
+        </h1>
+        <p className="text-muted-foreground mt-2">
+          Enter your email to receive a new verification link
+        </p>
       </div>
 
-      <h1 className="text-2xl font-semibold text-foreground tracking-tight">
-        Check your email
-      </h1>
-      <p className="text-muted-foreground mt-2 mb-6">
-        We've sent a verification link to your email address. Click the link to verify your account.
-      </p>
+      {resendSuccess && (
+        <BannerAlert
+          type="success"
+          message="If an account exists with this email, you'll receive a verification link shortly."
+          className="mb-6"
+        />
+      )}
 
-      <div className="space-y-3">
-        <Button variant="outline" className="w-full">
-          <RefreshCw className="w-4 h-4 mr-2" />
-          Resend verification email
+      <form onSubmit={handleResendVerification} className="space-y-4">
+        <div className="space-y-2">
+          <Label htmlFor="email">Email</Label>
+          <div className="relative">
+            <Mail className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
+            <Input
+              id="email"
+              type="email"
+              placeholder="you@example.com"
+              value={resendEmail}
+              onChange={(e) => setResendEmail(e.target.value)}
+              className="pl-10"
+              required
+              autoComplete="email"
+            />
+          </div>
+        </div>
+
+        <Button 
+          type="submit" 
+          className="w-full" 
+          disabled={isResending || !resendEmail.trim()}
+        >
+          {isResending ? (
+            <>
+              <Loader2 className="w-4 h-4 mr-2 animate-spin" />
+              Sending...
+            </>
+          ) : (
+            <>
+              Send verification link
+              <ArrowRight className="w-4 h-4 ml-2" />
+            </>
+          )}
         </Button>
-      </div>
+      </form>
 
-      <p className="text-sm text-muted-foreground mt-6">
-        Wrong email?{" "}
-        <Link to="/register" className="text-accent hover:underline font-medium">
-          Go back
+      <p className="text-center text-sm text-muted-foreground mt-6">
+        <Link to="/login" className="text-accent hover:underline font-medium">
+          Back to sign in
         </Link>
       </p>
     </div>