.lumera-whatsapp {
  position: fixed;
  right: max(22px, env(safe-area-inset-right));
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 90;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid #d4b284;
  border-radius: 50%;
  color: #fffaf2;
  background: #79522b;
  box-shadow: 0 6px 20px rgb(50 30 12 / 24%);
}
.lumera-whatsapp svg { width: 31px; height: 31px; }
.lumera-whatsapp:hover { background: #5c3d20; }
.lumera-whatsapp:focus-visible { outline: 3px solid #bb873e; outline-offset: 4px; }
@media (max-width: 700px) {
  .lumera-whatsapp {
    width: 52px;
    height: 52px;
    right: max(14px, env(safe-area-inset-right));
    bottom: max(14px, env(safe-area-inset-bottom));
  }
}