.portal-back{position:fixed;z-index:9999;left:max(12px,env(safe-area-inset-left));top:max(12px,env(safe-area-inset-top));display:flex;align-items:center;gap:7px;padding:9px 12px;border:2px solid #080b16;border-radius:999px;background:#d9ff43;color:#080b16!important;text-decoration:none;font:800 11px/1 Nunito,system-ui,sans-serif;box-shadow:4px 4px 0 #7a5cff;transition:.2s transform}.portal-back:hover{transform:translateY(-2px)}
@media(max-width:560px){.portal-back{top:auto;bottom:max(12px,env(safe-area-inset-bottom));font-size:0;width:44px;height:44px;justify-content:center;padding:0}.portal-back:before{content:'⌂';font-size:20px}}