#cerrar {
	display: none;
}

.modal {
	position: fixed;
	top: 0;
	left: 0;
	z-index: 3000;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: auto;
}

.modal__fondo {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.75);
	cursor: pointer;
}

.contenido {
	position: relative;
	z-index: 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	max-width: 92%;
	margin: 16px 0;
}

#btn-cerrar {
	margin: 0 0 12px;
	padding: 8px 18px;
	border-radius: 999px;
	background: #ffffff;
	color: #241008;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 16px;
	font-weight: bold;
	line-height: 1;
	cursor: pointer;
}

.contenido img {
	display: block;
	width: auto;
	height: auto;
	max-width: min(560px, 92vw);
	max-height: calc(100vh - 100px);
	border: 0;
}

#cerrar:checked ~ .modal {
	display: none;
}

@media screen and (max-device-width: 900px) {
	.contenido {
		max-width: none;
	}

	#btn-cerrar {
		position: absolute;
		top: 10px;
		right: 10px;
		z-index: 2;
		margin: 0;
	}

	.contenido img {
		width: 96vw;
		max-width: 96vw;
		max-height: none;
		height: auto;
	}
}