/* Ícones flutuantes das redes, na lateral direita. */
.sph-redes {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 45;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sph-rede {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: rgba(24, 28, 36, .5);
  border: 1px solid rgba(255, 255, 255, .22);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: .72;
  transition: opacity .25s, background .25s, transform .25s;
}
.sph-rede:hover { opacity: 1; background: rgba(40, 46, 58, .72); transform: translateX(-3px); }
.sph-rede svg { width: 19px; height: 19px; fill: currentColor; }
@media (max-width: 640px) {
  .sph-redes { right: 12px; gap: 6px; }
  .sph-rede { width: 36px; height: 36px; }
  .sph-rede svg { width: 16px; height: 16px; }
}