.tunnel-entry:before,.tunnel-exit:before{content:"";position:absolute;inset:8px 10px 0;background:radial-gradient(ellipse at 50% 30%,#18222d 0,#030506 72%);border-radius:28px 28px 2px 2px}
.tunnel-entry{box-shadow:inset 0 0 0 4px #070a0d,0 8px 15px #0005,-14px 0 22px #216cff22}
.tunnel-exit{box-shadow:inset 0 0 0 4px #070a0d,0 8px 15px #0005,14px 0 22px #216cff22}