/* Subtle premium charcoal gradient inspired by the supplied header reference. */
.al-main-nav.art-nav {
    background-color: #090c0f !important;
    background-image:
        radial-gradient(ellipse at 73% 18%, rgba(65, 72, 81, .24) 0%, rgba(32, 37, 43, .12) 32%, transparent 61%),
        radial-gradient(ellipse at 24% 100%, rgba(36, 42, 49, .18) 0%, transparent 52%),
        linear-gradient(105deg, #080a0d 0%, #11161b 48%, #0b0e12 76%, #07090b 100%) !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .025), 0 12px 34px rgba(0, 0, 0, .22) !important;
}

@media (max-width: 800px) {
    .al-main-nav.art-nav {
        background-image:
            radial-gradient(ellipse at 62% 20%, rgba(62, 69, 78, .22) 0%, transparent 60%),
            linear-gradient(110deg, #090c0f 0%, #12171c 54%, #080a0d 100%) !important;
    }
}