:root {
            --primary-color: #3a6186;
            --primary-dark: #89253e;
            --secondary-color: #5f6368;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --gradient-primary: linear-gradient(135deg, #3a6186 0%, #89253e 100%);
            --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
            --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
            --border-radius: 8px;
            --border-radius-lg: 12px;
        }
		
		body, html {
            height: 100%;
            font-family: 'Poppins', sans-serif;
        }
		
		.is-invalid {
			border-color: #dc3545 !important;
		}
		
		.invalid-feedback {
			display: none;
			width: 100%;
			margin-top: 0.25rem;
			font-size: 0.875em;
			color: #dc3545;
		}
		
		.invalid-feedback.show {
			display: block;
		}
		
		.alert {
			padding: 0.75rem 1.25rem;
			margin-bottom: 1rem;
			border: 1px solid transparent;
			border-radius: var(--border-radius);
		}
		
		.alert-danger {
			color: #721c24;
			background-color: #f8d7da;
			border-color: #f5c6cb;
			border-left: 4px solid #dc3545;
		}
		
		.alert-success {
			color: #155724;
			background-color: #d4edda;
			border-color: #c3e6cb;
			border-left: 4px solid #28a745;
		}
		
		.btn-spinner {
			display: none;
			margin-right: 8px;
		}
		
		.btn.loading .btn-spinner {
			display: inline-block;
		}
		
		/* Enhanced Styling */
        .main-wrapper {
            height: 100%;
            overflow: hidden;
        }
        
        .login-bg {
            position: relative;
            height: 100vh;
            overflow: hidden;
            padding: 0;
        }
        
        .login-bg::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-primary);
            opacity: 0.9;
            z-index: 1;
        }
        
        .welcome-login {
            position: relative;
            z-index: 2;
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 30px;
        }
        
        .mentor-course {
            color: white;
            max-width: 600px;
            margin-top: 40px;
        }
        
        .mentor-course h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .mentor-course p {
            font-size: 16px;
            opacity: 0.9;
        }
        
        .login-wrap-bg {
            background-color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100vh;
            overflow-y: auto;
            padding: 30px;
        }
        
        .loginbox {
            max-width: 480px;
            width: 100%;
            padding: 40px;
            background-color: white;
            border-radius: var(--border-radius-lg);
            box-shadow: var(--card-shadow);
        }
        
        .img-logo {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }
        
        .img-logo img {
            max-height: 45px;
        }
        
        .back-home a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .back-home a:hover {
            color: var(--primary-dark);
        }
        
        h1 {
            font-size: 26px;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--dark-color);
        }
        
        .account-subtitle {
            color: var(--secondary-color);
            margin-bottom: 25px;
        }
        
        .input-block {
            margin-bottom: 20px;
        }
        
        .form-control-label {
            font-weight: 500;
            margin-bottom: 8px;
            display: block;
            color: var(--dark-color);
        }
        
        .form-control {
            height: 50px;
            padding: 10px 20px;
            border-radius: var(--border-radius);
            border: 1px solid #e5e5e5;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(58, 97, 134, 0.25);
        }
        
        .btn-primary {
            background: var(--gradient-primary);
            border: none;
            height: 50px;
            font-weight: 500;
            border-radius: var(--border-radius);
            transition: all 0.3s ease;
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--box-shadow);
        }
        
        .google-bg {
            margin-top: 40px;
            text-align: center;
        }
        
        .google-bg p {
            color: var(--secondary-color);
        }
        
        .google-bg a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .google-bg a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        
        /* Animation elements */
        .login-banner {
            position: relative;
            z-index: 2;
            animation: floatAnimation 3s ease-in-out infinite;
        }
        
        @keyframes floatAnimation {
            0% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0); }
        }
        
        /* Particles */
        .particles-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            overflow: hidden;
        }
        
        .particle {
            position: absolute;
            background-color: rgba(255, 255, 255, 0.5);
            border-radius: 50%;
            pointer-events: none;
        }
        
        /* Responsiveness */
        @media (max-width: 991px) {
            .login-bg {
                height: auto;
                min-height: 400px;
            }
            
            .welcome-login {
                height: auto;
                min-height: 400px;
            }
            
            .login-wrap-bg {
                height: auto;
                padding: 40px 20px;
            }
            
            .loginbox {
                padding: 30px 20px;
            }
            
            .mentor-course h2 {
                font-size: 28px;
            }
        }
        
        @media (max-width: 767px) {
            .login-bg {
                min-height: 300px;
            }
            
            .welcome-login {
                min-height: 300px;
                padding: 20px;
            }
            
            .mentor-course h2 {
                font-size: 24px;
            }
            
            .mentor-course p {
                font-size: 14px;
            }
            
            .loginbox {
                padding: 25px 15px;
            }
        }