.hero-asteroid { --trail-length: 94px; transform-origin: 50% 50%; }
.hero-asteroid::before { left: calc(-1 * var(--trail-length)); right: auto; top: 50%; width: var(--trail-length); height: 4px; transform: translateY(-50%); transform-origin: right center; background: linear-gradient(90deg, rgba(255,255,255,0), rgba(218,228,255,.08) 42%, rgba(255,255,255,.74) 100%); filter: blur(1.7px); }