/home/awneajlw/www/codestechvista.com/admin/login.php
<?php
session_start();
require_once '../config/database.php';

// If already logged in as admin, redirect to dashboard
if (isset($_SESSION['user_id']) && isset($_SESSION['user_role']) && $_SESSION['user_role'] === 'admin') {
    header('Location: dashboard.php');
    exit();
}

$error = '';
$success = '';

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $email = trim($_POST['email']);
    $password = $_POST['password'];
    
    if (empty($email) || empty($password)) {
        $error = 'Please fill in all fields.';
    } else {
        $database = new Database();
        $db = $database->getConnection();
        
        $query = "SELECT id, name, email, password, role, phone FROM users WHERE email = ? AND role = 'admin'";
        $stmt = $db->prepare($query);
        $stmt->execute([$email]);
        $user = $stmt->fetch(PDO::FETCH_ASSOC);
        
        if ($user && password_verify($password, $user['password'])) {
            // Set session variables
            $_SESSION['user_id'] = $user['id'];
            $_SESSION['user_name'] = $user['name'];
            $_SESSION['user_email'] = $user['email'];
            $_SESSION['user_role'] = $user['role'];
            $_SESSION['user_phone'] = $user['phone'];
            $_SESSION['last_activity'] = time();
            
            header('Location: dashboard.php');
            exit();
        } else {
            $error = 'Invalid admin credentials. Please check your email and password.';
        }
    }
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Admin Login - OptiSlip</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #169D53 0%, #0d7a3f 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .login-container {
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
            max-width: 450px;
            width: 100%;
        }
        
        .login-header {
            background: linear-gradient(135deg, #169D53 0%, #0d7a3f 100%);
            color: white;
            padding: 40px 30px;
            text-align: center;
        }
        
        .login-header i {
            font-size: 60px;
            margin-bottom: 20px;
            opacity: 0.9;
        }
        
        .login-header h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .login-header p {
            font-size: 14px;
            opacity: 0.9;
        }
        
        .login-body {
            padding: 40px 30px;
        }
        
        .form-label {
            font-weight: 600;
            color: #333;
            margin-bottom: 8px;
            font-size: 14px;
        }
        
        .form-control {
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 15px;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: #169D53;
            box-shadow: 0 0 0 0.2rem rgba(22, 157, 83, 0.15);
        }
        
        .input-group-text {
            background: #f8f9fa;
            border: 2px solid #e0e0e0;
            border-right: none;
            border-radius: 10px 0 0 10px;
            color: #169D53;
        }
        
        .input-group .form-control {
            border-left: none;
            border-radius: 0 10px 10px 0;
        }
        
        .input-group .form-control:focus {
            border-left: none;
        }
        
        .btn-login {
            background: linear-gradient(135deg, #169D53 0%, #0d7a3f 100%);
            border: none;
            color: white;
            padding: 14px 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 16px;
            width: 100%;
            transition: all 0.3s ease;
            margin-top: 10px;
        }
        
        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(22, 157, 83, 0.3);
            color: white;
        }
        
        .alert {
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
            font-size: 14px;
        }
        
        .alert-danger {
            background: #fee;
            border: 1px solid #fcc;
            color: #c33;
        }
        
        .alert-success {
            background: #efe;
            border: 1px solid #cfc;
            color: #3c3;
        }
        
        .login-footer {
            text-align: center;
            padding: 20px;
            background: #f8f9fa;
            border-top: 1px solid #e0e0e0;
        }
        
        .login-footer a {
            color: #169D53;
            text-decoration: none;
            font-weight: 600;
        }
        
        .login-footer a:hover {
            text-decoration: underline;
        }
        
        .admin-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 12px;
            margin-top: 10px;
        }
        
        @media (max-width: 576px) {
            .login-container {
                border-radius: 15px;
            }
            
            .login-header {
                padding: 30px 20px;
            }
            
            .login-header h2 {
                font-size: 24px;
            }
            
            .login-body {
                padding: 30px 20px;
            }
        }
    </style>
</head>
<body>
    <div class="login-container">
        <div class="login-header">
            <i class="fas fa-user-shield"></i>
            <h2>Admin Panel</h2>
            <p>OptiSlip - Optical Shop Management</p>
            <span class="admin-badge">Administrator Access Only</span>
        </div>
        
        <div class="login-body">
            <?php if ($error): ?>
                <div class="alert alert-danger">
                    <i class="fas fa-exclamation-circle"></i> <?php echo htmlspecialchars($error); ?>
                </div>
            <?php endif; ?>
            
            <?php if ($success): ?>
                <div class="alert alert-success">
                    <i class="fas fa-check-circle"></i> <?php echo htmlspecialchars($success); ?>
                </div>
            <?php endif; ?>
            
            <form method="POST" action="">
                <div class="mb-3">
                    <label for="email" class="form-label">
                        <i class="fas fa-envelope"></i> Admin Email
                    </label>
                    <div class="input-group">
                        <span class="input-group-text">
                            <i class="fas fa-user"></i>
                        </span>
                        <input type="email" class="form-control" id="email" name="email" 
                               placeholder="admin@eyeclinic.com" 
                               value="<?php echo isset($_POST['email']) ? htmlspecialchars($_POST['email']) : ''; ?>" 
                               required autofocus>
                    </div>
                </div>
                
                <div class="mb-3">
                    <label for="password" class="form-label">
                        <i class="fas fa-lock"></i> Password
                    </label>
                    <div class="input-group">
                        <span class="input-group-text">
                            <i class="fas fa-key"></i>
                        </span>
                        <input type="password" class="form-control" id="password" name="password" 
                               placeholder="Enter your password" 
                               required>
                    </div>
                </div>
                
                <button type="submit" class="btn-login">
                    <i class="fas fa-sign-in-alt"></i> Login to Admin Panel
                </button>
            </form>
        </div>
        
        <div class="login-footer">
            <a href="../index.php">
                <i class="fas fa-arrow-left"></i> Back to Website
            </a>
        </div>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>