.hero-bg {
    background-image: linear-gradient(rgba(30, 58, 138, 0.85), rgba(30, 58, 138, 0.75)), url('https://images.unsplash.com/photo-1481627834876-b7833e8f5570?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');
    background-size: cover;
    background-position: center;
}