/* Shared by each puzzle's landing page (index.html) and the site home page. */
body {
	font-family: Verdana, sans-serif;
	margin: 0.5rem;
}
img {
	max-width: 100%;
	height: auto;
}
#header {
	font-weight: bold;
	text-align: center;
}
#header > h1 {
	font-size: clamp(1.75rem, 7vw, 3rem);
	margin: 0 auto;
}
.card {
	border: 2px solid black;
	min-width: 0;
	min-height: 14rem;
	margin: 0.25rem;
	vertical-align: top;
}
.title {
	background: #DDD;
	font-size: 1.25rem;
	line-height: 1.25rem;
	padding: 0.25rem 0.5rem;
	font-weight: bold;
	text-align: center;
}
.content img {
	display: block;
	margin: auto;
}
#cards {
	display: grid;
	margin: auto;
	max-width: 75rem;
	grid-template-columns: 1fr 1fr 1fr;
}
@media only screen and (max-width: 65rem) {
	#cards {
		grid-template-columns: 1fr 1fr;
	}
}
@media only screen and (max-width: 43rem) {
	#cards {
		grid-template-columns: 1fr;
	}
	.card {
		min-height: 0;
	}
}
.diff {
	text-align: center;
	margin: 0.5rem auto;
	background: #FFC;
	border: 1px solid black;
	border-radius: 0.5rem;
	padding: 0.25rem 0.5rem;
	display: block;
	width: 14rem;
	max-width: calc(100% - 2rem);
	color: #222;
	text-decoration: none;
}
.diff:hover {
	background: #FFA;
	color: #000;
	text-decoration: underline;
}
.link {
	margin: 0.5rem;
	line-height: 1.5rem;
}
.cardFull {
	border: 2px solid black;
	display: block;
	max-width: 42rem;
	margin: 0.25rem auto;
}
details {
	border: 1px solid black;
	margin: 0.25rem;
}
details > div {
	padding: 0.25rem 0.5rem;
}
summary {
	background: #FDE;
	padding: 0.25rem 0.5rem;
	cursor: pointer;
}
form label {
	white-space: nowrap;
}
form select {
	max-width: 100%;
}
#progress {
	padding: 0.25rem 0.5rem;
}
#progress table {
	width: 100%;
	border-collapse: collapse;
}
#progress td {
	padding: 0.2rem 0.25rem;
}
#progress td + td {
	text-align: right;
}