#hero.airborne{animation:heroFlight .32s ease-in-out infinite alternate;filter:drop-shadow(0 8px 8px #000b) drop-shadow(-10px 8px 8px #22dfff)}
#hero.airborne::after{display:block;content:"";position:absolute;left:-14px;bottom:8px;width:22px;height:8px;border-radius:50%;background:linear-gradient(90deg,transparent,#48eaff,#fff);filter:blur(1px);animation:thruster .12s infinite alternate}
#hero.rebound{animation:energyRebound .28s ease-out}
@keyframes heroFlight{from{margin-top:-2px}to{margin-top:2px}}
@keyframes thruster{from{transform:scaleX(.65);opacity:.55}to{transform:scaleX(1.25);opacity:1}}
@keyframes energyRebound{0%{filter:brightness(1)}45%{filter:brightness(2.8) drop-shadow(0 0 16px #45eaff);transform:translate(-50%,-50%) scale(.82,1.18)}100%{filter:brightness(1);transform:translate(-50%,-50%) scale(1)}}