:root{--brand:#0d6efd;}
.hero{background: radial-gradient(1200px 600px at 10% 10%, rgba(13,110,253,.25), rgba(0,0,0,.8)), url('../img/space-bg.jpg') center/cover no-repeat;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.75),rgba(0,0,0,.2));}
.cover-preview{max-height:420px;object-fit:contain;}
footer{font-variant-numeric:tabular-nums;}