@font-face {
    font-family: digital-7;
    src: url(digital-7-mono.ttf);
}

html {
	font-family: Helvetica, arial, sans-serif;
}

body {
	margin: 0;
	position: relative;
	height: 100vh;
	background-color:#333;
}

#welcome {
	color: #FFF;
	display: flex;
	flex-direction:column;
	justify-content: center;
	text-align: center;
	height: 100vh;
}

#playGame {
	margin-bottom:3em ;
}

#playGame input[type=radio] {
	display: none;
}

#playGame label{
	padding: 1.25em;
	border: 2px solid #fff;
	font-weight: 700;
	box-sizing: border-box;
	margin: 2em 0.5em 4em;
	display: inline-block;
}

#playGame input[type=radio]:checked + label {
	background-color: white;
	color: #5b5959;
}

#playGame button[type=submit] {
	display: block;
	margin: 0 auto;
	padding: 1em 2.5em;
	border-radius: 50%;
	background-color: white;
	font-weight: 700;
	color: #5b5959;
	border: none;
}

#board {
	display: none;
	box-sizing: border-box;
	width: 100%;
	padding: 1.5vw;
	flex-wrap: wrap;
	justify-content: space-around;
	align-content: flex-start;
	perspective: 800px;
}

#board section {
	width: 22vw;
	height: 22vw;
	margin: 1vw 0;
	position: relative;
	transform: translateY(0);
	transform-style: preserve-3d;
	-webkit-transform-style:preserve-3d;
	z-index: 3;
	transition:0.3s;
}

.front, .back {
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	backface-visibility: hidden;
	-webkit-backface-visibility:hidden;
}

.front {
	background-image: url(img/royal/front.png);
	background-size: cover;
	z-index: 2;	
}

#board .flipped {
	transform:rotateY(180deg);
	transform-style: preserve-3d;
	-webkit-transform-style:preserve-3d;
}

.back {
	display: flex;
	justify-content: center;
	align-items: center;
	font-size: 250%;
	z-index: 1;
	transform: rotateY(180deg);
}

.back img {
	width: 100%;
	height: auto;
}

#message {
	z-index: -1;
	position: absolute;
	width: 100%;
	opacity: 0;
	left: 0%;
	top: 10%;
	padding: 2.25em;
	box-sizing: border-box;
	background-color: #ddd;
	transition: all 0.4s;
}

#message.show {
	z-index: 4;
	opacity: 1;
	width: 80%;
	left: 10%;
	top: 17.8%;
	padding: 1.25em;
}
.reward {
	box-shadow: 0 0 1px 2px rgba(15, 160, 0, .6);
}


header {
	background-color: #5b5959;
	height:3em;
}

header p {
	display: flex;
	justify-content: center;
	align-items: center;
	margin: 0;
	text-align: center;

}

#output {
	border: 2px grey inset;
	padding: 5px;
	background-color: #FFF;
	color: #000;
	font-family: digital-7;
	font-size: 20px;
}

.grid {
	color: white;
	display: grid;
	grid-template-columns: 1fr 1fr 1fr;
	border-bottom: 2px grey outset;
}

.btn-header {
	margin-top:.9em;
	border-radius: 47%;
	width: 7.5em;
	height: 2em;
	font-weight: 700;
	border: none;
	outline: none;
	cursor: pointer;
}