.fondo {
    background: linear-gradient(to right, 
        rgba(1, 153, 169, 0.1) 0%,
        rgba(1, 153, 169, 0.9) 100%
    ),
    linear-gradient(to bottom, 
        rgba(255, 255, 255, 0.9) 0%,
        rgba(255, 255, 255, 0.1) 100%
    );
    background-blend-mode: multiply;
    position: relative;
    overflow: hidden;
}