.mmus-puzzle {
	--mmus-blue: #9edcff;
	--mmus-blue-strong: #1769d1;
	--mmus-yellow: #fffda0;
	--mmus-gray: #dedede;
	--mmus-green: #14853b;
	box-sizing: border-box;
	margin: 1.5em auto;
	max-width: 720px;
	width: 100%;
}

.mmus-puzzle *,
.mmus-puzzle *::before,
.mmus-puzzle *::after {
	box-sizing: border-box;
}

.mmus-puzzle__meta {
	align-items: center;
	display: flex;
	gap: 12px;
	justify-content: space-between;
	margin: 0 0 12px;
}

.mmus-puzzle__title {
	margin: 0 0 8px;
}

.mmus-puzzle__difficulty {
	background: #eef3f8;
	border-radius: 999px;
	display: inline-block;
	font-size: .82em;
	font-weight: 700;
	padding: 3px 10px;
}

.mmus-puzzle__timer {
	font-family: Arial, Helvetica, sans-serif;
	font-size: clamp(20px, 5vw, 28px);
	font-variant-numeric: tabular-nums;
	font-weight: 800;
	white-space: nowrap;
}

.mmus-puzzle__instructions {
	margin: 0 0 8px;
}

.mmus-puzzle__grid {
	aspect-ratio: 1;
	border: 3px solid #171717;
	display: grid;
	grid-template-columns: repeat(9, 1fr);
	overflow: hidden;
	width: 100%;
}

.mmus-puzzle__cell {
	-webkit-appearance: none;
	align-items: center;
	aspect-ratio: 1;
	background: #fff;
	border: 0;
	border-bottom: 1px solid #777;
	border-radius: 0;
	border-right: 1px solid #777;
	color: #111;
	cursor: pointer;
	display: flex;
	font-family: Arial, Helvetica, sans-serif;
	font-size: clamp(18px, 7vw, 42px);
	font-weight: 800;
	justify-content: center;
	line-height: 1;
	margin: 0;
	min-height: 0;
	padding: 0;
	position: relative;
	transition: background-color .1s ease;
	touch-action: manipulation;
}

.mmus-puzzle__cell:nth-child(3n) {
	border-right: 3px solid #171717;
}

.mmus-puzzle__cell:nth-child(9n) {
	border-right: 0;
}

.mmus-puzzle__cell:nth-child(n+19):nth-child(-n+27),
.mmus-puzzle__cell:nth-child(n+46):nth-child(-n+54) {
	border-bottom: 3px solid #171717;
}

.mmus-puzzle__cell:nth-child(n+73) {
	border-bottom: 0;
}

.mmus-puzzle__cell.is-given {
	background: var(--mmus-gray);
	font-weight: 800;
}

.mmus-puzzle__cell.is-peer {
	background: var(--mmus-yellow);
}

.mmus-puzzle__cell.is-given.is-peer {
	background: #d5d3a6;
}

.mmus-puzzle__cell.is-match,
.mmus-puzzle__cell.is-given.is-match {
	background: var(--mmus-blue);
}

.mmus-puzzle__cell.is-selected {
	box-shadow: inset 0 0 0 4px #111;
	z-index: 2;
}

.mmus-puzzle__cell.is-error {
	background: #ffd6d6;
	color: #b00020;
}

.mmus-puzzle__cell.is-conflict {
	box-shadow: inset 0 0 0 4px #d32f2f;
	z-index: 2;
}

.mmus-puzzle__cell.is-hint {
	color: var(--mmus-blue-strong);
	font-weight: 800;
}

.mmus-puzzle__cell.is-revealed {
	color: #59636e;
}

.mmus-puzzle__numbers {
	display: grid;
	gap: 8px;
	grid-template-columns: repeat(5, minmax(0, 1fr));
	margin-top: 18px;
}

.mmus-number {
	-webkit-appearance: none;
	align-items: center;
	background: #fff;
	border: 2px solid #444;
	border-radius: 14px;
	color: #111;
	cursor: pointer;
	display: flex;
	font-family: Arial, Helvetica, sans-serif;
	justify-content: center;
	min-height: 68px;
	min-width: 0;
	padding: 5px 8px;
	position: relative;
	touch-action: manipulation;
}

.mmus-number strong {
	font-size: clamp(28px, 8vw, 44px);
	line-height: 1;
}

.mmus-number:not(.mmus-erase) strong {
	transform: translateY(9px);
}

.mmus-number small {
	font-size: 11px;
	font-weight: 700;
	line-height: 1;
	margin: 0;
	position: absolute;
	right: 6px;
	top: 6px;
	white-space: nowrap;
}

.mmus-number:hover,
.mmus-number:focus-visible {
	border-color: var(--mmus-blue-strong);
	color: var(--mmus-blue-strong);
}

.mmus-number.is-complete {
	background: #edf0f3;
	color: #77808a;
}

.mmus-erase {
	flex-direction: column;
	gap: 2px;
}

.mmus-erase strong {
	font-size: clamp(25px, 7vw, 38px);
}

.mmus-erase small {
	align-self: auto;
	font-size: 11px;
	margin-top: 0;
	position: static;
}

.mmus-puzzle__toolbar {
	display: flex;
	flex-wrap: wrap;
	gap: 9px;
	margin-top: 16px;
}

.mmus-puzzle__button {
	-webkit-appearance: none;
	background: #fff;
	border: 2px solid #222;
	border-radius: 4px;
	color: #111;
	cursor: pointer;
	font: inherit;
	font-weight: 700;
	padding: .55em 1em;
}

.mmus-puzzle__button:hover,
.mmus-puzzle__button:focus-visible {
	border-color: var(--mmus-blue-strong);
	color: var(--mmus-blue-strong);
}

.mmus-puzzle__button:disabled {
	cursor: default;
	opacity: .45;
}

.mmus-puzzle__message {
	border: 2px solid;
	border-radius: 5px;
	font-weight: 700;
	margin-top: 16px;
	padding: 13px 15px;
	text-align: center;
}

.mmus-puzzle__message.is-success {
	background: #e7f7eb;
	border-color: var(--mmus-green);
	color: #075a24;
}

.mmus-puzzle__message.is-error {
	background: #fff0f0;
	border-color: #c62828;
	color: #8d1111;
}

.mmus-puzzle__message.is-info {
	background: #eef5ff;
	border-color: var(--mmus-blue-strong);
	color: #114b91;
}

.mmus-score-entry,
.mmus-leaderboard {
	background: #f5f7fa;
	border-radius: 5px;
	margin-top: 18px;
	padding: 16px;
}

.mmus-score-entry h4,
.mmus-leaderboard h4 {
	margin: 0 0 12px;
}

.mmus-score-entry form {
	align-items: flex-end;
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.mmus-score-entry label {
	flex: 1 1 220px;
	font-weight: 700;
}

.mmus-score-entry input {
	background: #fff;
	border: 1px solid #777;
	border-radius: 3px;
	display: block;
	font: inherit;
	margin-top: 4px;
	padding: 8px 10px;
	width: 100%;
}

.mmus-score-entry__status {
	font-weight: 700;
	margin-top: 8px;
}

.mmus-leaderboard ol {
	counter-reset: mmus-rank;
	list-style: none;
	margin: 0;
	padding: 0;
}

.mmus-leaderboard li {
	border-bottom: 1px solid #d6dce2;
	counter-increment: mmus-rank;
	display: grid;
	gap: 12px;
	grid-template-columns: 2em 1fr auto;
	padding: 7px 2px;
}

.mmus-leaderboard li::before {
	content: counter(mmus-rank) ".";
	font-weight: 800;
}

.mmus-leaderboard li:last-child {
	border-bottom: 0;
}

.mmus-leaderboard time {
	font-variant-numeric: tabular-nums;
	font-weight: 800;
}

.mmus-leaderboard sup {
	color: #b00020;
	font-size: .75em;
	font-weight: 800;
	margin-left: 2px;
}

.mmus-leaderboard__note {
	font-size: .88em;
	margin: 10px 0 0;
}

.mmus-leaderboard__note[hidden] {
	display: none !important;
}

.mmus-score-entry[hidden],
.mmus-leaderboard[hidden],
.mmus-puzzle__message[hidden] {
	display: none !important;
}

@media (min-width: 620px) {
	.mmus-puzzle__numbers {
		grid-template-columns: repeat(10, minmax(0, 1fr));
	}

	.mmus-number {
		border-radius: 12px;
		min-height: 76px;
	}

	.mmus-number strong {
		font-size: clamp(30px, 5vw, 40px);
	}

	.mmus-puzzle__toolbar {
		display: grid;
		grid-template-columns: repeat(5, minmax(0, 1fr));
	}

	.mmus-puzzle__toolbar .mmus-puzzle__button {
		align-items: center;
		display: flex;
		justify-content: center;
		min-height: 52px;
		text-align: center;
	}
}

@media (max-width: 480px) {
	.mmus-puzzle__cell.is-selected {
		box-shadow: inset 0 0 0 3px #111;
	}

	.mmus-number {
		min-height: 60px;
	}

	.mmus-puzzle__toolbar {
		display: grid;
		grid-template-columns: 1fr 1fr;
	}

	.mmus-puzzle__button {
		padding-left: .6em;
		padding-right: .6em;
	}
}