.belykweb-float-btn {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #fff;
  border: none;
  box-shadow: 0 8px 20px rgba(0,0,0,0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99998;
  opacity: 0;
  transform: translateY(16px) scale(0.85);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  cursor: pointer;
  padding: 0;
}
.belykweb-float-btn.show { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.belykweb-float-btn .float-icon {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.belykweb-float-btn .float-icon-wa { opacity: 1; transform: scale(1); }
.belykweb-float-btn .float-icon-top { opacity: 0; transform: scale(0.6); }
.belykweb-float-btn[data-mode="top"] .float-icon-wa { opacity: 0; transform: scale(0.6); }
.belykweb-float-btn[data-mode="top"] .float-icon-top { opacity: 1; transform: scale(1); }
.belykweb-float-btn[data-mode="wa"].show { animation: waPulseSmall 2.4s ease-in-out infinite; }
@keyframes waPulseSmall {
  0%, 100% { box-shadow: 0 8px 20px rgba(37,211,102,0.25); }
  50% { box-shadow: 0 8px 26px rgba(37,211,102,0.55); }
}
@media (max-width: 576px) {
  .belykweb-float-btn { right: 14px; bottom: 14px; width: 42px; height: 42px; }
}