.shimmer-bg {
    background-image: /* Diagonal overlay pattern */ linear-gradient( 145deg, rgba(215, 247, 240, 0.15) 25%, transparent 25%, transparent 50%, rgba(215, 247, 240, 0.15) 50%, rgba(215, 247, 240, 0.15) 75%, transparent 75% ), /* Base gradient */ linear-gradient( 135deg, #f3f3f1 25%, #f3f3f1 50%, #f3f3f1 75% );
    background-size: 40px 40px, cover;
    background-blend-mode: overlay;
}