.wautm-button {
	--wautm-color: #25D366;
	--wautm-bottom: 20px;
	--wautm-side: 20px;
	position: fixed;
	bottom: var(--wautm-bottom);
	z-index: 99990;
	display: inline-flex;
	align-items: center;
	gap: 10px;
	height: 56px;
	padding: 0 22px 0 16px;
	border-radius: 28px;
	background: var(--wautm-color);
	color: #fff !important;
	font: 600 15px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	text-decoration: none !important;
	box-shadow: 0 6px 20px rgba(0, 0, 0, .22);
	transition: transform .2s ease, box-shadow .2s ease;
	animation: wautm-in .4s ease both;
}

.wautm-button.wautm-pos-right { right: var(--wautm-side); }
.wautm-button.wautm-pos-left  { left: var(--wautm-side); }

.wautm-button:hover,
.wautm-button:focus-visible {
	transform: translateY(-2px);
	box-shadow: 0 10px 26px rgba(0, 0, 0, .28);
	color: #fff;
}

.wautm-button:focus-visible {
	outline: 3px solid rgba(0, 0, 0, .35);
	outline-offset: 3px;
}

.wautm-button .wautm-icon {
	width: 28px;
	height: 28px;
	flex: none;
	fill: currentColor;
	object-fit: contain;
}

.wautm-button.wautm-no-label {
	width: 56px;
	padding: 0;
	justify-content: center;
}

.wautm-button.wautm-no-label .wautm-icon {
	width: 30px;
	height: 30px;
}

@media (max-width: 600px) {
	.wautm-button {
		width: 56px;
		padding: 0;
		justify-content: center;
	}
	.wautm-button .wautm-label { display: none; }
}

/* Animação: piscar */
.wautm-button.wautm-anim-blink {
	animation: wautm-in .4s ease both, wautm-blink 1.6s ease-in-out 1s infinite;
}
.wautm-button.wautm-anim-blink:hover {
	animation-play-state: paused;
}

@keyframes wautm-blink {
	0%, 100% { transform: scale(1); }
	50%      { transform: scale(1.12); }
}

/* Animação: onda pulsando ao redor */
.wautm-button.wautm-anim-pulse::before {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: inherit;
	background: var(--wautm-color);
	z-index: -1;
	animation: wautm-pulse 1.8s ease-out 1s infinite;
}

@keyframes wautm-pulse {
	0%   { transform: scale(1);   opacity: .7; }
	100% { transform: scale(1.6); opacity: 0; }
}

@keyframes wautm-in {
	from { opacity: 0; transform: translateY(12px) scale(.9); }
	to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
	.wautm-button,
	.wautm-button.wautm-anim-blink { animation: none; transition: none; }
	.wautm-button.wautm-anim-pulse::before { display: none; }
}

@media print {
	.wautm-button { display: none !important; }
}