.bs-backdrop{position:fixed;top:0;bottom:0;left:0;right:0;z-index:-1;background-color:var(--color-grayscale-pure-black);display:flex;justify-content:center;align-items:center}.bs-backdrop.bs-backdrop-lightest{opacity:.1}.bs-backdrop.bs-backdrop-lighter{opacity:.2}.bs-backdrop.bs-backdrop-light{opacity:.3}.bs-backdrop.bs-backdrop-heavy{opacity:.4}.bs-backdrop.bs-backdrop-heavier{opacity:.6}.bs-backdrop.bs-backdrop-heaviest{opacity:.8}