/* Reuse the photo so the tube and its surrounding glow dim in place. */
.ceiling-flicker{position:absolute;inset:0;pointer-events:none;opacity:0;background-image:url('assets/arcade-room-integrated.webp');background-size:100% 100%;filter:brightness(.06);clip-path:polygon(89.6% 11.3%,100% 10.4%,100% 12.1%,89.6% 13.3%);-webkit-mask-image:radial-gradient(ellipse 6% 1.3% at 95% 11.8%,#000 60%,transparent 100%);mask-image:radial-gradient(ellipse 6% 1.3% at 95% 11.8%,#000 60%,transparent 100%)}
@media(prefers-reduced-motion:reduce){.ceiling-flicker{display:none}}