@import url('https://fonts.googleapis.com/icon?family=Material+Icons|Material+Icons+Outlined|Material+Icons+Round|Material+Icons+Sharp|Material+Icons+Two+Tone');
/* スタイル */
@font-face {
  font-family: 'Emulogic';
  src: url(assets/font/emulogic.ttf);
}
* {
  margin: 0;
  padding: 0;
}
a {
  color: #ff0;
}
a:hover {
  text-decoration: none;
}
body {
  height: 100vh;
  background: radial-gradient(circle, rgba(34,34,34,1) 0%, rgba(0,0,0,1) 100%);
  overflow: hidden;
}
canvas {
  /* margin: 3px auto 0; */
  font-family: Emulogic;
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid #111;
  border-radius: 3px;
  box-shadow: 1px 1px 2px rgba(255,255,255,.2);

}

/* [マニュアル] */
.instruct-card {
  width: 540px;
  height: 725px;
  color: #eee;
  font-size: 13px;
  letter-spacing: .1em;
  line-height: 1.6;
  background: rgba(0,0,0,.95);
  box-shadow: 0 0 60px rgba(0,0,0,.9);
  position: absolute;
  top: -725px;
  left: 50%;
  z-index: 1000;
  transform: translateX(-50%);
  transition: 250ms;
  overflow: auto;
}
.instruct-card.show {
  top: 0;
}
  .instruct-card p {
    margin: 10px 0;
    padding: 5px 20px;
    font-size: 16px;
    font-weight: bold;
  }
  .instruct-card hr {
    width: 95%;
    margin: auto;
    border-top: 1px solid transparent;
    border-bottom: 1px dotted rgba(255,255,255,.5);
  }
  .instruct-card ul {
    width: 85%;
    margin: auto;
  }
    .instruct-card ul li {
      margin-bottom: 20px;
    }
/* [説明オープンボタン] */
.instruct-card-oprn-button {
  width: 35px;
  height: 35px;
  background: rgba(255,255,255,.5);
  border-radius: 0 0 3px 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 0;
  right: 10px;
  cursor: pointer;
}
.instruct-card-oprn-button:before {
  content: 'description';
  color: #fff;
  font-family: 'Material Icons';
  font-size: 22px;
}