.button-primary,
.button-plain {
    align-items: center;
    background: transparent;
    border: 0;
    cursor: default;
    display: flex;
    font-family: inherit;
    font-size: inherit;
    justify-content: center;
    outline: 0;
    padding: 0;
    text-decoration: none;
}

.button-primary {
    border-radius: 1px;
    box-shadow: 0 0 0 1px currentColor;
    min-height: 35px;
    padding: 0 16px;
}

.button-primary {
    align-items: center;
    background: transparent;
    border: 0;
    cursor: default;
    display: flex;
    font-family: inherit;
    font-size: inherit;
    justify-content: center;
    outline: 0;
    padding: 0;
    text-decoration: none;
    user-select: none;
}

.button-primary {
    border-radius: 1px;
    box-shadow: 0 0 0 1px currentColor;
    min-height: 35px;
    padding: 0 16px;
}

.button-primary.-success {
    background-color: var(--brand-success);
    box-shadow: 0 0 0 1px var(--brand-success);
    color: var(--highlight-fg);
}

Add success variant to primary button
Add success variant to primary button
