.site-header .user-avatar-icon{display:none}

@media(max-width:640px){
  .site-header .btn-login{
    background:linear-gradient(135deg,#ff3f9f,#ff784d);
    color:#fff;
    border:1px solid rgba(255,255,255,.2);
    box-shadow:0 8px 22px rgba(255,63,159,.28);
  }

  .site-header .btn-login:hover,
  .site-header .btn-login:focus-visible{
    background:linear-gradient(135deg,#ff58ab,#ff8a62);
    color:#fff;
    outline:none;
  }

  .site-header .btn-login .user-avatar-icon{
    display:block;
    width:21px;
    height:21px;
    flex:0 0 auto;
  }
}