.cf-fab-wrap{
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.cf-fab{
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(15,23,42,0.12);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  color: #0F172A;
  cursor: pointer;
  font-weight: 900;
  font-size: 18px;
}
html[data-theme="dark"] .cf-fab{
  border-color: rgba(255,255,255,0.14);
  background: rgba(2,6,23,0.75);
  color: #F1F5F9;
}
.cf-fab:hover{
  border-color: rgba(59,130,246,0.35);
}