.brain-circle {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--purple), var(--purple-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    box-shadow: 0 20px 50px rgba(108, 99, 172, .3);
}

@media (max-width: 991px) {
    .div_heart {
        display: none;
    }
}