* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .auth-container {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            overflow: hidden;
            width: 100%;
            max-width: 800px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 500px;
        }

        .auth-left {
            background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
            color: white;
            padding: 60px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
        }

        .auth-left h1 {
            font-size: 36px;
            margin-bottom: 20px;
            font-weight: bold;
        }

        .auth-left p {
            font-size: 18px;
            opacity: 0.9;
            line-height: 1.6;
            margin-bottom: 30px;
        }

        .auth-left .benefits {
            list-style: none;
            text-align: left;
        }

        .auth-left .benefits li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .auth-left .benefits i {
            font-size: 20px;
            color: #ffd700;
        }

        .auth-right {
            padding: 60px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .auth-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .auth-header h2 {
            color: #333;
            font-size: 28px;
            margin-bottom: 10px;
        }

        .auth-header p {
            color: #6c757d;
            font-size: 16px;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 15px;
            border: 2px solid #e9ecef;
            border-radius: 8px;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        .form-group input:focus {
            outline: none;
            border-color: #28a745;
        }

        .form-group .error {
            color: #dc3545;
            font-size: 14px;
            margin-top: 5px;
        }

        .btn-login {
            width: 100%;
            background: #28a745;
            color: white;
            border: none;
            padding: 15px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
            margin-bottom: 20px;
        }

        .btn-login:hover {
            background: #218838;
            transform: translateY(-2px);
        }

        .btn-login:disabled {
            background: #6c757d;
            cursor: not-allowed;
            transform: none;
        }

        .auth-footer {
            text-align: center;
        }

        .auth-footer a {
            color: #28a745;
            text-decoration: none;
            font-weight: 500;
        }

        .auth-footer a:hover {
            text-decoration: underline;
        }

        .back-home {
            position: absolute;
            top: 20px;
            left: 20px;
            color: white;
            text-decoration: none;
            font-size: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .back-home:hover {
            color: #ffd700;
        }

        .loading {
            display: none;
            text-align: center;
            margin-top: 10px;
        }

        .loading i {
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .error-message {
            background: #f8d7da;
            color: #721c24;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            display: none;
        }

        .form-options {
            text-align: right;
            margin-bottom: 20px;
        }

        .forgot-password {
            color: #28a745;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .forgot-password:hover {
            color: #20c997;
            text-decoration: underline;
        }


        @media (max-width: 768px) {
            .auth-container {
                grid-template-columns: 1fr;
                max-width: 400px;
            }
            
            .auth-left {
                padding: 40px 20px;
            }
            
            .auth-right {
                padding: 40px 20px;
            }
        }