[hidden] { display: none !important; }

html, body {
	margin: 0;
	height: 100%;
	overflow: hidden;
	background: transparent;
	font: 14px/1.4 sans-serif;
	color: #888;
}

#ad { position: fixed; inset: 0; display: block; }
#ad img { display: block; width: 100%; height: 100%; object-fit: contain; }

/* Small "what is this?" badge, top-right corner, over the ad image. */
#info {
	position: fixed;
	top: 6px;
	right: 6px;
	width: 18px;
	height: 18px;
	line-height: 18px;
	border-radius: 50%;
	background: rgba(0, 0, 0, 0.45);
	color: #fff;
	font: 700 12px/18px sans-serif;
	text-align: center;
	text-decoration: none;
	opacity: 0.7;
	z-index: 1;
}
#info:hover,
#info:focus-visible { opacity: 1; }

#msg, noscript p {
	position: fixed;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0;
	text-align: center;
}