body {
    font-family: Arial, sans-serif;
}

.step {
    display: none;
}

.step.active {
    display: block;
}

.form-group {
    margin-bottom: 15px;
}

.button-group {
    display: flex;
}

.option-button {
    padding: 10px;
    border-right:1px solid white;
    border-left:none;
    border-top:none;
    border-bottom:none;
    cursor: pointer;
}

.option-button.active {
    background-color: orange;
    color: #fff;
}
.button-group button {
    padding: 7px 15px;
    margin-top: 10px;
    border: none;
    cursor: pointer;
    border-right:1px solid white;
}
.button-group button:first-child{
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
}
.button-group button:last-child{
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
}

.button-group button.active {
    background-color: orange;
    color: white;
}

.button-group button:last-child {
    margin-right: 0;
}

#registerForm, #loginForm {
    display: none;
}

#registerForm.active, #loginForm.active {
    display: block;
}

button {
    padding: 10px 20px;
    cursor: pointer;
}