.t-form__submit .t-submit {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
    transition: all 0.3s ease;
    transition-delay: 3s;
}


.t-input:not(:placeholder-shown):valid ~ .t-form__submit .t-submit,
.t-input-group:has(.t-input:not(:placeholder-shown):valid) ~ .t-form__submit .t-submit {
    opacity: 1;
    pointer-events: auto;
    cursor: pointer;
}