body {
	font-family: Helvetica, sans-serif;
	--tile-margin: 5%;
}
/* use minimal margins on small screens,
   to maximize available space for board. */
@media (width < 10cm) {
	body {
		margin: 2px;
		--tile-margin: 0%;
	}
}
#board {
	display: grid;
	grid-template-rows: repeat(15, 1fr);
}
.board-row {
	display: grid;
	grid-template-columns: repeat(15, 1fr);
	grid-auto-flow: column;
}
.board-square {
	margin: 1px;
	background-color: #dde;
	line-height: 1;
	position: relative;
}
.board-square.double-letter {
	background-color: #acf;
}
.board-square.triple-letter {
	background-color: #afc;
}
.board-square.double-word {
	background-color: #fac;
}
.board-square.triple-word {
	background-color: #c66;
}
.tile {
	background: #eca;
	position: absolute;
	width: calc(100% - 2 * var(--tile-margin));
	height: calc(100% - 2 * var(--tile-margin));
	top: var(--tile-margin);
	left: var(--tile-margin);
	border-radius: 3px;
	display: flex;
	justify-content: center;
	align-items: center;
	font-weight: bold;
}
.blank {
	color: #333;
	font-weight: normal;
}
.highlight {
	border: min(0.5vw,0.5vh) solid rgba(60,60,60,0.6);
	width: 100%;
	height: 100%;
	box-sizing: border-box;
	position: absolute;
	cursor: pointer;
	display: flex;
	justify-content: center;
	align-items: center;
}
.highlight.nothing {
	border-color: #f00;
}
#board .highlight.selected {
	border-color: #00f;
}
.highlight.all-correct {
	border-color: #0a0;
}
.highlight.some-mistakes {
	border-color: #f80;
}
.possibilities {
	word-break: break-all;
}
.point-container {
	position: relative;
	width: 100%;
	height: 100%;
}
.point-value {
	position: absolute;
	bottom: calc(1% + var(--tile-margin));
	right: calc(1% + var(--tile-margin));
	text-align: center;
	font-size: 30%;
}
#select-container {
	display: grid;
	grid-template-rows: repeat(2, 1fr);
}
.select-container-row {
	display: grid;
	grid-template-columns: repeat(15, 1fr);
	grid-auto-flow: column;
	width: 100%;
}
.select-tile-container {
	position: relative;
	cursor: pointer;
	margin: 2px;
}
.select-tile-container .tile {
	background-color: transparent;
	font-weight: normal;
	border: 2px solid black;
}
.select-tile-container .tile.possible,
.select-tile-container .tile.correct {
	background-color: #8c7;
	font-weight: bold;
	text-decoration: underline;
}
.select-tile-container .tile.missed {
	background-color: #8c7;
}
.select-tile-container .tile.not-possible {
	background-color: #c88;
}
.select-tile-container .tile.wrong {
	background-color: #c88;
	font-weight: bold;
	text-decoration: underline;
}
.select-tile-container .tile.placing {
	background-color: #88c;
	font-weight: bold;
	text-decoration: underline;
}
#submit {
	outline: 0;
	border: 2px solid #44a;
	outline: 2px solid #00a;
	box-shadow: 2px 2px 4px #00a;
	margin: 4px;
	border-radius: 5px;
	padding: 2px 5px;
	background: #ddf;
}
#submit:hover {
	background: #bbf;
}
#submit:active {
	transform: translate(2px, 2px);
	box-shadow: 0 0 0;
}
.solution-letter.wrong {
	text-decoration: line-through;
	font-weight: bold;
	color: #800;
}
.solution-letter.wrong {
	text-decoration: line-through;
	font-weight: bold;
	color: #800;
}
.solution-letter.correct {
	color: #060;
}
.solution-letter.missed {
	color: #00a;
	font-weight: bold;
}
/* all browsers which support grid should support
   the JavaScript we use (if they have javascript at all). */
@supports(display: grid) {
	#no-grid {
		display: none;
	}
}
progress#score-meter::-moz-progress-bar { background: var(--color); }
progress#score-meter::-webkit-progress-value { background: var(--color); }
progress#score-meter { color: var(--color); }
h2, h3 {
	margin: 2px;
}
.links {
	text-align: right;
	margin: 0;
	line-height: 1;
}
dialog {
	max-width: 50em;
	display: none;
}
dialog[open] {
	max-width: 50em;
	display: block;
}