:root {  --bs-primary-rgb: 107, 35, 131;  --bs-secondary-rgb: 161, 161, 161;  --bs-body-color: 17, 17, 17;  --bs-body-bg-rgb: 255, 255, 255;  --ust-brandinglogo-shadow: none;  --ust-bg-login: url("https://www.c-stem.co.uk/wp-content/uploads/2024/10/Login-page-background.png");  --ust-brandinglogo: url("https://www.c-stem.co.uk/wp-content/uploads/2024/08/C-STEM-Logo.png");  --ust-bg-welcome: url("https://www.c-stem.co.uk/wp-content/uploads/2024/08/Biling-home-page-banner.png");  --ust-bg-advert: url("https://www.c-stem.co.uk/wp-content/uploads/2024/08/Homepage-advert.png");  --bs-font-sans-serif: "Calibri (Body) standard", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";  --bs-body-font-family: var(--bs-font-sans-serif);  }