#fd-scroll-top-btn {
	position: fixed;
	bottom: 24px;
	right: 24px;
	width: 48px;
	height: 48px;
	border-radius: 50%;
	background: #1a5d3a;
	color: #fff;
	border: none;
	font-size: 18px;
	line-height: 1;
	cursor: pointer;
	box-shadow: 0 4px 14px rgba(0,0,0,.25);
	z-index: 9999;
	opacity: 0;
	visibility: hidden;
	transform: translateY(10px);
	transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
#fd-scroll-top-btn.fd-visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}
#fd-scroll-top-btn:hover {
	background: #123f27;
}

@media (max-width: 640px) {
	#fd-scroll-top-btn {
		bottom: 16px;
		right: 16px;
		width: 44px;
		height: 44px;
	}
}