.bd-navbar {
    padding: .75rem 0;
    margin-bottom: 1rem;
    background-color: white;
    border-bottom: 1px solid color-mix(in srgb, var(--accent-color), transparent 80%);
    transition: box-shadow .2s ease, border-bottom-color .2s ease;
}

.bd-navbar.is-scrolled {
    border-bottom-color: transparent;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}