@media (min-width: 782px) {

  .wp-block-site-logo {
    position: relative;
    display: inline-block;

    --x: 50%;
    --y: 50%;
  }

  .wp-block-site-logo .custom-logo {
    display: block;

    /* keep logo black */
    filter: brightness(0);
  }

  /* stronger flashlight */

  .wp-block-site-logo::after {
    content: "";
    position: absolute;
    width: 4rem;
    height: 4rem;
    left: var(--x);
    top: var(--y);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    pointer-events: none;
    mix-blend-mode: screen;
    opacity: 0;
    transition: opacity 300ms ease;
    filter: blur(0.5rem);
  }

  .wp-block-site-logo:hover::after {
    opacity: 1;
  }
}