@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300;0,400;0,600;0,700;0,800;1,300;1,400;1,600;1,700;1,800&display=swap');

html,body {
	padding: 0;
	margin: 0;
}

body {
	padding: 20px;

	font-family: "Open Sans", sans-serif;
	font-size: 14px;
	color: #555;

	background-color: #EEE;
}

* {
	box-sizing: border-box;
	user-select: none;
}

.content {
	width: 960px;
	padding: 0;
	margin: 0 auto;
}

.title {
	font-weight: 700;
	font-size: 30px;
	color: #888;

	user-select: none;
}

.subtitle {
	margin-bottom: 20px;

	font-weight: 400;
	font-size: 14px;
	color: #AAA;

	user-select: none;
}

#canvas {
	display: block;
	margin: 0;
	margin-top: 16px;
	padding: 0;

	background-color: #FFF;
	border-radius: 50px;
	cursor: default;
}

#canvas.moving {
	cursor: grab;
}

#canvas.pointer {
	cursor: pointer;
}

.button {
	width: 64px;
	height: 64px;
	margin-right: 10px;
	display: inline-block;

	background-color: #EEE;
	background-size: 60%;
	background-repeat: no-repeat;
	background-position: center;
	border: 1px solid #AAA;
	border-radius: 32px;
	cursor: pointer;

	transition: background-color .2s;
}

.pannel {
	display: inline-block;
	margin: 0;
	padding: 24px;
	padding-bottom: 16px;
	width: 270px;

	background-color: #FFF;
	border-radius: 32px;
}

.pannelTitle {
	margin-top: -10px;
	margin-bottom: 10px;

	text-align: center;
	font-size: 18px;
	font-weight: 600;
	color: #888;
}

.leftPannel {
	margin-right: 16px;
	width: 670px;
}

.playbutton {
	border-color: #57B;
}

.button.active {
	background-color: #FFF;
}

.button:hover {
	background-color: #FFF;
}

.button#move {
	background-image: url("img/move.png");
}

.button#add7brane {
	background-image: url("img/7brane.png");
}

.button#add5brane {
	background-image: url("img/5brane.png");
}

.button#remove {
	background-image: url("img/remove.png");
}

.button#rotate {
	background-image: url("img/rotate.png");
}

.button#playslide {
	background-image: url("img/playslide.png");
}

.button#subdivide {
	background-image: url("img/subdivide.png");
}

.button#divide {
	background-image: url("img/divide.png");
}