form {
    --form-spacer: 1rem
}

form .row {
    --bs-gutter-x: calc(var(--form-spacer) * 1.5)
}

legend {
    font-size: inherit
}

.form-legend {
    font-weight: 600
}

.form-fieldset {
    margin-bottom: calc(var(--form-spacer)*.5)
}

.form-row {
    margin-bottom: var(--form-spacer)
}

.form-row-captcha {
    display: flex;
    flex-wrap: wrap;
    align-items: center
}

.form-row-captcha .form-label-mathguard {
    flex-shrink: 0;
    margin-right: calc(var(--form-spacer)/2)
}

.form-row-captcha .form-control {
    width: 10em
}