body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            padding: 40px;
        }
        .form-container {
            background: #fff;
            padding: 20px;
            max-width: 320px;
            margin: auto;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
            text-align: left;
        }
        .form-group {
            display: flex;
            align-items: center;
            margin-bottom: 12px;
        }
        .form-group label {
            width: 100px;
            font-weight: bold;
        }
        .form-group input {
            flex: 1;
            padding: 6px 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
        }
        button {
            width: 100%;
            padding: 10px;
            background-color: #007acc;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: bold;
        }
        button:hover {
            background-color: #005f99;
        }
        .error-message {
            color: red;
            text-align: center;
            font-weight: bold;
            margin-top: 10px;
        }