.wv-back{
  position:fixed;top:16px;left:16px;z-index:999;
  display:flex;align-items:center;gap:8px;
  background:rgba(0,0,0,0.75);backdrop-filter:blur(8px);
  color:#fff;padding:10px 18px 10px 14px;border-radius:8px;
  font-family:system-ui,sans-serif;font-size:0.82rem;font-weight:600;
  text-decoration:none;border:1px solid rgba(255,255,255,0.1);
  transition:background .2s,transform .2s,box-shadow .2s;
}
.wv-back:hover{background:rgba(0,0,0,0.9);transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(0,0,0,0.4);}
.wv-back svg{flex-shrink:0;}
.wv-badge-footer{
  text-align:center;padding:16px;font-family:system-ui,sans-serif;font-size:0.75rem;
  color:rgba(255,255,255,0.35);border-top:1px solid rgba(255,255,255,0.05);
}
.wv-badge-footer a{color:#FF7A2E;text-decoration:none;font-weight:600;}