* {
    box-sizing: border-box;
  }
  
  html, body {
    height: 100%;
  }
  
  body {
    background: black;
    min-height: 100%;
    font-family: "Arial", sans-serif;
  }
  
  .wrap {
    position: relative;
    height: 100%;
    min-height: 500px;
    padding-bottom: 20px;
  }
  
  .game {
    transform-style: preserve-3d;
    perspective: 500px;
    min-height: 100%;
    height: 100%;
  }
  
  @-webkit-keyframes matchAnim {
    0% {
      background: #bcffcc;
    }
    100% {
      background: white;
    }
  }
  
  @keyframes matchAnim {
    0% {
      background: #bcffcc;
    }
    100% {
      background: white;
    }
  }
  .card {
    float: left;
    width: 16.66666%;
    height: 25%;
    padding: 5px;
    text-align: center;
    display: block;
    perspective: 500px;
    position: relative;
    cursor: pointer;
    z-index: 50;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  }
  @media (max-width: 800px) {
    .card {
      width: 25%;
      height: 16.666%;
    }
  }
  .card .inside {
    width: 100%;
    height: 100%;
    display: block;
    transform-style: preserve-3d;
    transition: 0.4s ease-in-out;
    background: white;
  }
  .card .inside.picked, .card .inside.matched {
    transform: rotateY(180deg);
  }
  .card .inside.matched {
    -webkit-animation: 1s matchAnim ease-in-out;
            animation: 1s matchAnim ease-in-out;
    -webkit-animation-delay: 0.4s;
            animation-delay: 0.4s;
  }
  .card .front, .card .back {
    border: 1px solid black;
    -webkit-backface-visibility: hidden;
            backface-visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 20px;
  }
  .card .front img, .card .back img {
    max-width: 100%;
    display: block;
    margin: 0 auto;
    max-height: 100%;
  }
  .card .front {
    transform: rotateY(-180deg);
  }
  @media (max-width: 800px) {
    .card .front {
      padding: 5px;
    }
  }
  .card .back {
    transform: rotateX(0);
  }
  @media (max-width: 800px) {
    .card .back {
      padding: 10px;
    }
  }
  
  .modal-overlay {
    display: none;
    background: rgba(0, 0, 0, 0.8);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
  
  .modal {
    display: none;
    position: relative;
    width: 500px;
    height: 400px;
    max-height: 90%;
    max-width: 90%;
    min-height: 380px;
    margin: 0 auto;
    background: white;
    top: 50%;
    transform: translateY(-50%);
    padding: 30px 10px;
  }
  .modal .winner {
    font-size: 80px;
    text-align: center;
    font-family: "Anton", sans-serif;
    color: #4d4d4d;
    text-shadow: 0px 3px 0 black;
  }
  @media (max-width: 480px) {
    .modal .winner {
      font-size: 60px;
    }
  }
  .modal .restart {
    font-family: "Anton", sans-serif;
    margin: 30px auto;
    padding: 20px 30px;
    display: block;
    font-size: 30px;
    border: none;
    background: #4d4d4d;
    background: linear-gradient(#4d4d4d, #222);
    border: 1px solid #222;
    border-radius: 5px;
    color: white;
    text-shadow: 0px 1px 0 black;
    cursor: pointer;
  }
  .modal .restart:hover {
    background: linear-gradient(#222, black);
  }
  .modal .message {
    text-align: center;
  }
  .modal .message a {
    text-decoration: none;
    color: #28afe6;
    font-weight: bold;
  }
  .modal .message a:hover {
    color: #56c0eb;
    border-bottom: 1px dotted #56c0eb;
  }
  .modal .share-text {
    text-align: center;
    margin: 10px auto;
  }
  .modal .social {
    margin: 20px auto;
    text-align: center;
  }
  .modal .social li {
    display: inline-block;
    height: 50px;
    width: 50px;
    margin-right: 10px;
  }
  .modal .social li:last-child {
    margin-right: 0;
  }
  .modal .social li a {
    display: block;
    line-height: 50px;
    font-size: 20px;
    color: white;
    text-decoration: none;
    border-radius: 5px;
  }
  .modal .social li a.facebook {
    background: #3b5998;
  }
  .modal .social li a.facebook:hover {
    background: #4c70ba;
  }
  .modal .social li a.google {
    background: #D34836;
  }
  .modal .social li a.google:hover {
    background: #dc6e60;
  }
  .modal .social li a.twitter {
    background: #4099FF;
  }
  .modal .social li a.twitter:hover {
    background: #73b4ff;
  }
  
  footer {
    height: 20px;
    position: absolute;
    bottom: 0;
    width: 100%;
    z-index: 0;
  }
  footer .disclaimer {
    line-height: 20px;
    font-size: 12px;
    color: #727272;
    text-align: center;
  }
  @media (max-width: 767px) {
    footer .disclaimer {
      font-size: 8px;
    }
  }