.services-hero {
    position: relative;
}

.services-hero .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    z-index: 1;   /* lower */
}

.services-hero .container {
    position: relative;
    z-index: 2;   /* higher → clickable */
}