.hero.has-bg { position: relative; overflow: hidden; }
           .hero.has-bg::before {
               content: "";
               position: absolute;
               inset: 0;
               background: url('https://media.istockphoto.com/id/1386341272/photo/abstract-modern-tech-of-programming-code-screen-developer.jpg?s=612x612&w=0&k=20&c=16FJUoZ6j-XmBDF0g-llzkJaIsdpf6uz46D4eQfL_LM=') center/cover no-repeat;
               opacity: 0.15; /* adjust for fainter/stronger */
               z-index: 0;
           }
           .hero.has-bg .hero-body { position: relative; z-index: 1; }

.hero.has-portfolio-bg { position: relative; overflow: hidden; }
           .hero.has-portfolio-bg::before {
               content: "";
               position: absolute;
               inset: 0;
               background: url('https://static.vecteezy.com/system/resources/thumbnails/024/499/237/original/binary-purple-color-abstract-box-pattern-dark-technology-background-free-video.jpg') center/cover no-repeat;
               opacity: 0.2; /* adjust for fainter/stronger */
               z-index: 0;
           }
           .hero.has-portfolio-bg .hero-body { position: relative; z-index: 1; }