/* Faster ambient motion; keep the glass sweep deliberately calm. */
.auth::before{animation-duration:8s}
.aurora{animation-duration:5s}
.a2{animation-duration:6s}
.a3{animation-duration:7s}
.a4{animation-duration:4s}
.light-grid{animation-duration:6s}
.glass{animation-duration:2.8s}
.glass::before{animation-duration:8s}
.glass-glow{animation-duration:2s}
@media(prefers-reduced-motion:reduce){.auth::before,.aurora,.light-grid,.glass,.glass::before,.glass-glow{animation:none}}