@media (max-width: 760px) {
  .mobile-sticky-nav a:first-child {
    color: rgba(7, 48, 108, 0.78);
    background: transparent;
  }

  .mobile-sticky-nav a.is-active {
    color: #fff;
    background: linear-gradient(135deg, var(--red), var(--blue-bright));
  }
}