.btn-circle {
	position: fixed;
	width: 48px;
	height: 48px;
	border-radius: 50%;
	border: none;
	font-size: 1.5rem;
	text-align: center;
	line-height: 48px;
	text-decoration: none;
	z-index: 999;
	cursor: pointer;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.back-circle {
	background-color: rgba(73, 171, 170, 0.6); /* półprzezroczysty turkus */
	color: white;
	top: 4rem;
	left: 1rem;
	transition: background 0.2s ease, opacity 0.2s ease;
	opacity: 0.8;
}

.back-circle:hover {
	background-color: rgba(73, 171, 170, 0.9);
	opacity: 1;
}