.ef-social {
  position: fixed;
  z-index: 9998;
  bottom: var(--ef-social-bottom, 140px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.ef-social--right { right: 18px; }
.ef-social--left { left: 18px; }

.ef-social__label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,.82);
  background: rgba(12,12,12,.92);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  padding: 10px 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,.16);
  backdrop-filter: blur(8px);
}

.ef-social__item {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: rgba(10,10,10,.94);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(0,0,0,.15);
  transition: transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
  backdrop-filter: blur(8px);
}
.ef-social__item:hover,
.ef-social__item:focus {
  transform: translateY(-2px);
  background: #fff;
  color: #0c0c0c;
  border-color: rgba(12,12,12,.24);
  outline: none;
}
.ef-social__item svg {
  width: 18px;
  height: 18px;
  display: block;
}

@media (max-width: 980px) {
  .ef-social--right { right: 12px; }
  .ef-social--left { left: 12px; }
  .ef-social { bottom: max(110px, var(--ef-social-bottom, 120px)); gap: 8px; }
  .ef-social__item { width: 40px; height: 40px; }
  .ef-social__label { font-size: 10px; padding: 8px 6px; }
}