body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.registration-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 300px;
    text-align: center;
}

.registration-container h2 {
    margin-bottom: 20px;
    font-size: 24px;
    color: #333;
}

.registration-form .form-group {
    margin-bottom: 15px;
    text-align: left;
}

.registration-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.registration-form input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.registration-form input:focus {
    border-color: #007bff;
    outline: none;
}

.submit-btn {
    background-color: #007bff;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}

.submit-btn:hover {
    background-color: #0056b3;
}

.email-input-container {
            display: flex;
            align-items: center;
            border: 1px solid #ccc;
            border-radius: 5px;
            overflow: hidden;
            width: 100%;
        }

        .email-input-container input {
            border: none;
            padding: 8px;
            outline: none;
            flex-grow: 1;
        }

        .email-input-container span {
            background-color: #f3f3f3;
            padding: 8px;
            color: #333;
            white-space: nowrap;
        }

        .error-message {
            color: #d9534f;
            font-size: 12px;
            margin-top: 5px;
            display: none;
        }

        .input-error {
            border: 1px solid #d9534f;
        }