.bgstart {
    background-image: url('assets/bg.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    width: 100%;
    height: 100vh;
}

/* Mobile-friendly background */
@media (max-width: 768px) {
    .bgstart {
        background-image: url('assets/bgmobo.webp');
    }
}