@import url("https://fonts.googleapis.com/css?family=Fredoka+One&text=%3FYOUWON!");
body {
  align-items: center;
  background-image: radial-gradient(circle 448px at center, #16d9e3 0%, #30c7ec 22%, #46aef7 100%);
  display: flex;
  height: 100vh;
  justify-content: center;
  overflow: hidden;
  -webkit-perspective: 1200px;
          perspective: 1200px;
}

.board {
  display: grid;
  grid-gap: 20px;
  grid-template-columns: repeat(4, 100px);
  grid-template-rows: repeat(4, 100px);
  position: relative;
  position: relative;
  top: 20px;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  -webkit-transform: rotateX(50deg) rotateZ(22deg);
          transform: rotateX(50deg) rotateZ(22deg);
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

.clone {
  display: none;
}

.cube {
  -webkit-animation: enter 600ms ease-out;
          animation: enter 600ms ease-out;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  -webkit-transform: translateZ(0) scale(1);
          transform: translateZ(0) scale(1);
  transition: all 350ms ease-out;
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
  -webkit-backface-visibility: hidden;
          backface-visibility: hidden;
}
.cube.flipped {
  pointer-events: none;
  -webkit-transform: rotateY(180deg) translateZ(0) scale(1);
          transform: rotateY(180deg) translateZ(0) scale(1);
  transition: all 500ms ease-out;
}
.cube.matched {
  pointer-events: none;
  -webkit-transform: rotateY(180deg) translateZ(0) scale(1);
          transform: rotateY(180deg) translateZ(0) scale(1);
  -webkit-animation: match 650ms ease-out;
          animation: match 650ms ease-out;
}

.face {
  outline: 1px solid transparent;
  -webkit-backface-visibility: hidden;
          backface-visibility: hidden;
  box-shadow: inset 0 0 2px 1px #fff0d2;
  height: 100px;
  overflow: hidden;
  position: absolute;
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
  width: 100px;
}

.face:nth-child(1) {
  background-color: wheat;
  cursor: pointer;
  -webkit-transform: rotateY(0deg) translateZ(10px);
          transform: rotateY(0deg) translateZ(10px);
  transition: background 150ms ease-out;
}
.face:nth-child(1):before {
  align-items: center;
  bottom: 0;
  color: #93794c;
  content: '?';
  display: flex;
  font-family: 'Fredoka One', cursive;
  font-size: 60px;
  justify-content: center;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.face:nth-child(2) {
  background-color: #efca86;
  width: 20px;
  -webkit-transform: rotateY(90deg) translateZ(90px);
          transform: rotateY(90deg) translateZ(90px);
}

.face:nth-child(3) {
  background-color: dodgerblue;
  -webkit-transform: rotateY(180deg) translateZ(10px);
          transform: rotateY(180deg) translateZ(10px);
}

.face:nth-child(4) {
  background-color: #efca86;
  width: 20px;
  -webkit-transform: rotateY(270deg) translateZ(10px);
          transform: rotateY(270deg) translateZ(10px);
}

.face:nth-child(5) {
  background-color: #efca86;
  height: 20px;
  -webkit-transform: rotateX(90deg) translateZ(10px);
          transform: rotateX(90deg) translateZ(10px);
}

.face:nth-child(6) {
  background-color: #efca86;
  height: 20px;
  -webkit-transform: rotateX(-90deg) translateZ(90px);
          transform: rotateX(-90deg) translateZ(90px);
}

.overlay {
  align-items: center;
  background: rgba(255, 255, 255, 0.75);
  bottom: 0;
  display: flex;
  justify-content: center;
  left: 0;
  opacity: 1;
  position: fixed;
  right: 0;
  top: 0;
  transition: all 500ms ease-out;
}
.overlay.hidden {
  opacity: 0;
  pointer-events: none;
  transition: all 300ms ease-out;
}
.overlay.hidden .gameover {
  -webkit-transform: translateY(60px);
          transform: translateY(60px);
  transition: all 300ms ease-out;
}

.gameover {
  align-items: center;
  background-color: #fff;
  border-radius: 120px;
  border: 12px solid #50b8f7;
  color: #2e2e2e;
  display: flex;
  font-family: 'Fredoka One', cursive;
  font-size: 40px;
  height: 120px;
  width: 340px;
  justify-content: space-between;
  padding: 0 10px 0 30px;
  -webkit-transform: translateY(0);
          transform: translateY(0);
  transition: all 500ms ease-out;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

.reset {
  background-color: #fbc300;
  border-radius: 50%;
  border: 0;
  box-shadow: 0px 6px 0px 0px #f2a003;
  cursor: pointer;
  display: block;
  height: 94px;
  margin-left: 20px;
  position: relative;
  top: -3px;
  width: 96px;
}
.reset:active {
  box-shadow: none;
  top: 0;
}
.reset:focus {
  outline: 0;
}

.twitter__link {
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  cursor: pointer;
  position: absolute;
  right: 10px;
  top: 12px;
  z-index: -1;
  background: #fff;
  border-radius: 20px;
  height: 30px;
  text-decoration: none;
  padding-right: 10px;
  justify-content: space-between;
  font-family: sans-serif;
  font-weight: 600;
  display: flex;
  align-items: center;
  color: #00aced;
  font-size: 14px;
  width: 74px;
  opacity: 0.4;
  z-index: 10;
}
.twitter__link:hover {
  opacity: 1;
}

.twitter__icon {
  height: 30px;
}
footer {
	position: fixed;
	bottom: 0;
	width: 100%;
	height: 40px;
	z-index: 100;
}

footer .skyline {
	width: 250px;
	height: 40px;
	margin-top: -40px;
	float: right;
	background-image: url('../img/skyline.png');
	background-repeat: no-repeat;
	background-position: right bottom;
	background-size: 250px 36px;
}

footer .footer-box {
	width: auto;
	height: 40px;
	background-color: #013192;
	text-align: left;
}

footer .footer-box > span {
	display: inline-block;
	width: auto;
	height: auto;
	line-height: 40px;
	padding: 0 42px;
	font-family: 'Dosis', 'Arial', sans-serif;
	font-weight: 400;
	font-size: 14px;
	color: #eee;
}

footer .footer-box span.right {
	float: right;
	text-align: right;
	text-transform: uppercase;
	line-height: 22px;
	padding-top: 16px;
}

footer .footer-box span a {
	font-family: 'Dosis', 'Arial', sans-serif;
	color: #eee;
	text-decoration: underline;
}

footer .footer-box span a:hover {
	text-decoration: none;
}


[data-tile="egg"] div:nth-child(3) {
  background: #fff8e7 url(../svg/dino-egg.svg) center center no-repeat;
  background-size: 60px;
}

[data-tile="dino"] div:nth-child(3) {
  background: #fff8e7 url(../svg/dino-dino1.svg) bottom center no-repeat;
  background-size: 85px;
}

[data-tile="ahahah"] div:nth-child(3) {
  background: #fff8e7 url(../svg/dino-ah.svg) center center no-repeat;
  background-size: 60px;
}

[data-tile="tri"] div:nth-child(3) {
  background: #fff8e7 url(../svg/dino-tri.svg) center center no-repeat;
  background-size: 85px;
}

[data-tile="ptero"] div:nth-child(3) {
  background: #fff8e7 url(../svg/dino-ptero.svg) center center no-repeat;
  background-size: 85px;
}

[data-tile="erupt"] div:nth-child(3) {
  background: #fff8e7 url(../svg/dino-erupt.svg) center center no-repeat;
  background-size: 85px;
}

audio {
  display: none;
}

@-webkit-keyframes enter {
  0% {
    -webkit-transform: translateZ(-20px) scale(0.3);
            transform: translateZ(-20px) scale(0.3);
  }
  50% {
    -webkit-transform: translateZ(20px) scale(1.02);
            transform: translateZ(20px) scale(1.02);
  }
  100% {
    -webkit-transform: translateZ(0) scale(1);
            transform: translateZ(0) scale(1);
  }
}

@keyframes enter {
  0% {
    -webkit-transform: translateZ(-20px) scale(0.3);
            transform: translateZ(-20px) scale(0.3);
  }
  50% {
    -webkit-transform: translateZ(20px) scale(1.02);
            transform: translateZ(20px) scale(1.02);
  }
  100% {
    -webkit-transform: translateZ(0) scale(1);
            transform: translateZ(0) scale(1);
  }
}
@-webkit-keyframes match {
  0% {
    -webkit-transform: rotateY(180deg) translateZ(-15px);
            transform: rotateY(180deg) translateZ(-15px);
  }
  50% {
    -webkit-transform: rotateY(180deg) translateZ(10px);
            transform: rotateY(180deg) translateZ(10px);
  }
  100% {
    -webkit-transform: rotateY(180deg) translateZ(0);
            transform: rotateY(180deg) translateZ(0);
  }
}
@keyframes match {
  0% {
    -webkit-transform: rotateY(180deg) translateZ(-15px);
            transform: rotateY(180deg) translateZ(-15px);
  }
  50% {
    -webkit-transform: rotateY(180deg) translateZ(10px);
            transform: rotateY(180deg) translateZ(10px);
  }
  100% {
    -webkit-transform: rotateY(180deg) translateZ(0);
            transform: rotateY(180deg) translateZ(0);
  }
}