@import url(https://fonts.googleapis.com/css?family=Bree+Serif);

$duration: 300ms;
$timing-fn: ease;
$turquoise: #1ABC9C;
$wet-asphalt: #34495E;
$midnight-blue: #2C3E50;
$clouds: #ECF0F1;

/* the important bits */
li {
  perspective: 400px;
}

.info {
  // hide-initial-state
  transform: rotate3d(1,0,0, 90deg);
  
  width: 100%;
  height: 100%;
  padding: 20px;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 4px;
  pointer-events: none;
  background-color: transparentize($turquoise, .1);
}

.in-top .info {
   transform-origin: 50% 0%;
   animation: in-top $duration $timing-fn 0ms 1 forwards;
}
.in-right .info {
  transform-origin: 100% 0%;
  animation: in-right $duration $timing-fn 0ms 1 forwards;
}
.in-bottom .info {
  transform-origin: 50% 100%;
  animation: in-bottom $duration $timing-fn 0ms 1 forwards;
}
.in-left .info {
  transform-origin: 0% 0%;
  animation: in-left $duration $timing-fn 0ms 1 forwards;
}

.out-top .info {
  transform-origin: 50% 0%;
  animation: out-top $duration $timing-fn 0ms 1 forwards;
}
.out-right .info {
  transform-origin: 100% 50%;
  animation: out-right $duration $timing-fn 0ms 1 forwards;
}
.out-bottom .info {
  transform-origin: 50% 100%;
  animation: out-bottom $duration $timing-fn 0ms 1 forwards;
}
.out-left .info {
  transform-origin: 0% 0%;
  animation: out-left $duration $timing-fn 0ms 1 forwards;
}

@keyframes in-top {
  from {transform: rotate3d(-1,0,0, 90deg)}
  to   {transform: rotate3d(0,0,0, 0deg)}}
@keyframes in-right {
  from {transform: rotate3d(0,-1,0, 90deg)}
  to   {transform: rotate3d(0,0,0, 0deg)}}
@keyframes in-bottom {
  from {transform: rotate3d(1,0,0, 90deg)}
  to   {transform: rotate3d(0,0,0, 0deg)}}
@keyframes in-left {
  from {transform: rotate3d(0,1,0, 90deg)}
  to   {transform: rotate3d(0,0,0, 0deg)}}

@keyframes out-top {
  from {transform: rotate3d(0,0,0, 0deg)}
  to   {transform: rotate3d(-1,0,0, 104deg)}}
@keyframes out-right {
  from {transform: rotate3d(0,0,0, 0deg)}
  to   {transform: rotate3d(0,-1,0, 104deg)}}
@keyframes out-bottom {
  from {transform: rotate3d(0,0,0, 0deg)}
  to   {transform: rotate3d(1,0,0, 104deg)}}
@keyframes out-left {
  from {transform: rotate3d(0,0,0, 0deg)}
  to   {transform: rotate3d(0,1,0, 104deg)}}


/* you can ignore this ones */
ul {
  padding: 0;
  margin: 0 0 50px;

  &:after {
    content: "";
    display: table;
    clear: both;
  }
}

li {
  position: relative;
  float: left;
  width: 200px;
  height: 200px;
  margin: 5px;
  padding: 0;
  list-style: none;
  
  a  {
    display: inline-block;
    vertical-align: top;
    text-decoration: none;
    border-radius: 4px;
  }
  
  h3 {
    margin: 0;
    font-size: 16px;
    color: transparentize(#fff, .1);
  }
  
  p  {
    font-size: 12px;
    line-height: 1.5;
    color: transparentize(#fff, .2);
  }
  
  .normal {
    width: 100%;
    height: 100%;
    background-color: $clouds;
    color: transparentize($wet-asphalt, .4);
    box-shadow: inset 0 2px 20px darken($clouds, 2);
    text-align: center;
    font-size: 50px;
    line-height: 200px;
    
    svg {
      pointer-events: none;
      width: 50px;
      path {
        fill: transparentize($wet-asphalt, .8);
      }
    }
  }
}

* {
  box-sizing: border-box;
}

body {
  background-color: #fff;
}

h1 {
  margin: 0 auto 5px;
  text-align: center;
}

h3 {
  font-family: 'Bree Serif', serif;
}

.container {
  width: 840px;
  margin: 0 auto;
}

header {
  font-family: 'Bree Serif', serif;
  text-align: center;
  margin: 50px 0 25px;
  color: $wet-asphalt;
  
  p {
    margin: 0;
    color: transparentize($wet-asphalt, .6);
  }
}