/* Back to top: used only on long hub and joining pages. */
.back-to-top { position:fixed; right:calc(1rem + env(safe-area-inset-right,0px)); bottom:calc(1rem + env(safe-area-inset-bottom,0px)); z-index:15; min-height:44px; padding:.7rem 1rem; border:2px solid #f4c540; border-radius:6px; background:#071d16; color:#fff; font:700 .875rem/1.3 Inter,Arial,sans-serif; cursor:pointer; box-shadow:0 3px 12px rgba(0,0,0,.18); }
.back-to-top[hidden] { display:none; }
.back-to-top:hover { background:#0b2e22; }
.back-to-top:focus-visible { outline:3px solid #fff; outline-offset:3px; }
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } }
@media print { .back-to-top { display:none; } }