.wwf-float {
  position: fixed;
  bottom: var(--wwf-offy, 20px);
  z-index: 999999;
}
.wwf-right { right: var(--wwf-offx, 20px); }
.wwf-left  { left: var(--wwf-offx, 20px); }

.wwf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--wwf-size, 64px);
  height: var(--wwf-size, 64px);
  border-radius: 9999px;
  background: #25D366;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  transition: transform .12s ease-out, box-shadow .12s ease-out, opacity .2s ease;
  opacity: 0.98;
}
.wwf-btn:hover, .wwf-btn:focus {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 26px rgba(0,0,0,.2);
  outline: none;
}
.wwf-btn img {
  width: calc(var(--wwf-size, 64px) * 0.6);
  height: calc(var(--wwf-size, 64px) * 0.6);
  display: block;
  filter: drop-shadow(0 1px 0 rgba(0,0,0,.15));
}
.screen-reader-text {
  position: absolute;
  clip: rect(1px, 1px, 1px, 1px);
  padding: 0;
  border: 0;
  height: 1px;
  width: 1px;
  overflow: hidden;
  word-wrap: normal !important;
}