.sticky-whatsapp {
	position: fixed;
	right: clamp(16px, 3vw, 28px);
	bottom: calc(18px + env(safe-area-inset-bottom));
	z-index: 999;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 58px;
	height: 58px;
	border-radius: 999px;
	color: #ffffff;
	background: #25d366;
	box-shadow: 0 18px 34px rgba(18, 140, 126, 0.28);
	text-decoration: none;
	transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.sticky-whatsapp svg {
	width: 30px;
	height: 30px;
	fill: currentColor;
}

.btn-whatsapp svg {
	width: 20px;
	height: 20px;
	fill: currentColor;
	flex-shrink: 0;
	transition: transform 0.2s ease;
}

.sticky-whatsapp::before {
	position: absolute;
	right: calc(100% + 12px);
	top: 50%;
	padding: 7px 10px;
	border-radius: 6px;
	color: #ffffff;
	background: #111827;
	box-shadow: 0 10px 24px rgba(17, 24, 39, 0.18);
	content: attr(data-label);
	font-size: 13px;
	font-weight: 700;
	line-height: 1;
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transform: translate(6px, -50%);
	transition: opacity 0.2s ease, transform 0.2s ease;
}

.sticky-whatsapp:hover,
.sticky-whatsapp:focus-visible {
	color: #ffffff;
	background: #1ebe5d;
	box-shadow: 0 22px 42px rgba(18, 140, 126, 0.34);
	transform: translateY(-2px);
}

.sticky-whatsapp:hover::before,
.sticky-whatsapp:focus-visible::before {
	opacity: 1;
	transform: translate(0, -50%);
}

.sticky-whatsapp:focus-visible {
	outline: 3px solid rgba(37, 211, 102, 0.35);
	outline-offset: 4px;
}

@media (max-width: 640px) {
	.sticky-whatsapp {
		right: 16px;
		bottom: calc(16px + env(safe-area-inset-bottom));
		width: 54px;
		height: 54px;
	}

	.sticky-whatsapp svg {
		width: 28px;
		height: 28px;
	}

	.sticky-whatsapp::before {
		display: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sticky-whatsapp,
	.sticky-whatsapp::before {
		transition: none;
	}
}