/*

DO NOT TOUCH FOR NOW - BUT MAYBE LATER

*/


.book {
    transition: opacity 0.4s 0.2s;
    margin-top: 80px;
  }

  .page {
    width: 30vw;
    height: 44vw;
    background-color: #a95555;
    float: left;
    margin-bottom: 0.5em;
    background: left top no-repeat;
    background-size: cover;
  }
  .page:nth-child(even) {
    clear: both;
  }
  .book {
    perspective: 250vw;
  }
  .book .pages {
    width: 60vw;
    height: 44vw;
    position: relative;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    border-radius: 4px;
   
  }
  .book .page {
    float: none;
    clear: none;
    margin: 0;
    position: absolute;
    top: 0;
    width: 30vw;
    height: 44vw;
    transform-origin: 0 0;
    transition: transform 1.4s;
    backface-visibility: hidden;
    transform-style: preserve-3d;
    cursor: pointer;
    user-select: none;
    background-color: #f0f0f0;
  }
  .book .page:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.7s;
    z-index: 2;
  }
  .book .page:nth-child(odd) {
    pointer-events: all;
    transform: rotateY(0deg);
    right: 0;
    border-radius: 0 4px 4px 0;
    background-image: linear-gradient(to right, rgba(0,0,0,.15) 0%, rgba(0,0,0,0) 10%);
  }
  .book .page:nth-child(odd):hover {
    transform: rotateY(-15deg);
  }
  .book .page:nth-child(odd):hover:before {
    background: rgba(0, 0, 0, 0.03);
  }
  .book .page:nth-child(odd):before {
    background: rgba(0, 0, 0, 0);
  }
  .book .page:nth-child(even) {
    pointer-events: none;
    transform: rotateY(180deg);
    transform-origin: 100% 0;
    left: 0;
    border-radius: 4px 0 0 4px;
    border-color: black;
    background-image: linear-gradient(to left, rgba(0,0,0,.12) 0%, rgba(0,0,0,0) 10%);
  }
  .book .page:nth-child(even):before {
    background: rgba(0, 0, 0, 0.2);
  }
  .book .page.grabbing {
    transition: none;
  }
  .book .page.flipped:nth-child(odd) {
    pointer-events: none;
    transform: rotateY(-180deg);
  }
  .book .page.flipped:nth-child(odd):before {
    background: rgba(0, 0, 0, 0.2);
  }
  .book .page.flipped:nth-child(even) {
    pointer-events: all;
    transform: rotateY(0deg);
  }
  .book .page.flipped:nth-child(even):hover {
    transform: rotateY(15deg);
  }
  .book .page.flipped:nth-child(even):hover:before {
    background: rgba(0, 0, 0, 0.03);
  }
  .book .page.flipped:nth-child(even):before {
    background: rgba(0, 0, 0, 0);
  }
/*
  .book .page:nth-child(2) {
    background-color: #99ccff;
  }
*/
  
  *,
  * :before,
  *:after {
    box-sizing: border-box;
  }
  


  html {
    height: 100%;
  }
    
  body {
    min-height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2em 0;
    line-height: 1.5em;
  }

  
  html,
  body {
    background: #333;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  }
  
  .page:nth-child(odd){
    background-position: right top;
  }