.header__nav-button--getdemo:hover {
    background: var(--secondary-text-colour);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border: 1px solid white;
}

.header__nav-button--login:hover {
    background: var(--secondary-text-colour);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-color: white;
}

.header__main-button--register {
    transition: box-shadow 0.4s ease-in-out;
}

.header__main-button--register:hover {
    box-shadow:
        0 0 100px 10px rgba(212, 58, 255, 0.788),
        0 0 400px 40px rgba(170, 50, 255, 0.329),
        0 0 800px 80px rgba(238, 50, 255, 0.247);
}
.footer__btn {
    transition:  0.4s ease-in-out;

}

.footer__btn:hover {
    background-image: var(--third-text-colour);
}