html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: black;
  font-family: 'Play', sans-serif;
}

#my-video {
  position: fixed;
  width: 100%;
  height: 100%;
  -webkit-transition: background-color 2s;
  transition: background-color 2s;
}

.overlay {
  position: fixed;
  width: 100%;
  height: 100%;
  background: black;
  z-index: 100;
  opacity: 0.5;
}

.center-box {
  position: fixed;
  color: white;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 125;
}

.logo {
  width: 20%;
  margin-bottom: 15px;
}

.downloads-container {
  position: relative;
  width: 60%;
  left: 20%;
  margin-top: 40px;
  text-align: left;
}

#my-canvas {
  position: fixed;
  z-index: 150;
  display: none;
}

::-moz-selection {
  background: black;
  color: white;
}

::selection {
  background: black;
  color: white;
}

a {
  text-decoration: none;
}

.download {
  position: absolute;
  top: calc(50% - 30px);
  right: calc(50% - 115px);
  width: 230px;
  height: 60px;
  background-image: -webkit-linear-gradient(bottom, rgba(0, 0, 0, 0.075), rgba(255, 255, 255, 0.045));
  background-image: linear-gradient(to top, rgba(0, 0, 0, 0.075), rgba(255, 255, 255, 0.045));
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.09), inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 0 1px rgba(0, 0, 0, 0.3), 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 60px;
  text-align: center;
  letter-spacing: 5px;
  overflow: hidden;
  -webkit-transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81), -webkit-transform 0.15s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81), -webkit-transform 0.15s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81), transform 0.15s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81), transform 0.15s cubic-bezier(0.67, 0.13, 0.1, 0.81), -webkit-transform 0.15s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.download:hover {
  right: calc(50% - 200px);
  width: 400px;
}

.download:active {
  -webkit-transform: translateY(3px);
  transform: translateY(3px);
}

.download::before,
.download::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 1;
  -webkit-transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.download::before {
  content: 'DOWNLOAD';
}

.download::after {
  content: 'SELECT A PLATFORM';
  top: -60px;
  opacity: 0;
}

.download:hover::after {
  top: 0;
  opacity: 1;
}

.download:hover::before {
  top: 60px;
  opacity: 0;
}

.platforms {
  position: fixed;
  top: calc(50% - 100px);
  left: calc(50% - 195px);
  height: 200px;
  width: 390px;
  background: #222;
  border-radius: 5px;
  visibility: hidden;
  -webkit-transform: scale(0.9);
  transform: scale(0.9);
  opacity: 0;
  overflow: hidden;
  -webkit-transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.platforms:target {
  visibility: visible;
  -webkit-transform: scale(1);
  transform: scale(1);
  opacity: 1;
}

.platforms a {
  position: absolute;
  top: 200px;
  left: 10px;
  width: 180px;
  height: 180px;
  border-radius: 5px;
  color: white;
  text-transform: uppercase;
  -webkit-transition: top 0.5s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: top 0.5s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.platforms a:nth-child(1) {
  -webkit-transition-delay: 0.1s;
  transition-delay: 0.1s;
}

.platforms a:nth-child(2) {
  left: 200px;
}

.platforms:target a {
  top: 10px;
}

.platforms a:hover {
  background: #444;
  box-shadow: 0 0 0 1px #333;
}

.platforms a::before {
  content: attr(data-os);
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  line-height: 60px;
  text-align: center;
}

.platforms a::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 120px;
  line-height: 120px;
  text-align: center;
  font-size: 300%;
}

.platforms a:nth-child(1)::after {
  content: '⊞';
}

.platforms a:nth-child(2)::after {
  content: '⏍';
}

.installer {
  position: fixed;
  top: calc(50% - 150px);
  left: calc(50% - 300px);
  width: 600px;
  height: 300px;
  background: #222;
  border-radius: 5px;
  visibility: hidden;
  -webkit-transform: scale(0.9);
  transform: scale(0.9);
  opacity: 0;
  -webkit-transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.installer:target {
  visibility: visible;
  -webkit-transform: scale(1);
  transform: scale(1);
  opacity: 1;
}

.installer a.back {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 38px;
  height: 38px;
  line-height: 38px;
  text-align: center;
  font-size: 200%;
  color: #bbb;
}

.installer a.back::before {
  content: '◂';
}

.installer a.back::after {
  content: 'Back';
  position: absolute;
  top: 7px;
  left: 30px;
  height: 20;
  line-height: 20px;
  font-size: 40%;
  text-align: center;
  color: #cacaca;
  border-radius: 5px;
  pointer-events: none;
  opacity: 0;
  -webkit-transition: all 0.2s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.2s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.installer a.back:hover::after {
  left: 38px;
  opacity: 1;
}

.installer a.close {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 200%;
  color: #bbb;
}

.installer a.close::before {
  content: '×';
}

.installer a.close::after {
  content: 'Close';
  position: absolute;
  top: 7px;
  right: 30px;
  height: 20;
  line-height: 20px;
  font-size: 40%;
  text-align: center;
  color: #cacaca;
  border-radius: 5px;
  pointer-events: none;
  opacity: 0;
  -webkit-transition: all 0.2s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.2s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.installer a.close:hover::after {
  right: 38px;
  opacity: 1;
}

.installer .info {
  position: absolute;
  top: 10px;
  left: 10px;
  height: 280px;
  width: 180px;
}

.installer .info::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 180px;
  height: 220px;
  line-height: 220px;
  text-align: center;
  font-size: 1000%;
  color: white;
}

.installer .info::after {
  content: attr(data-weight);
  position: absolute;
  bottom: 0;
  left: 0;
  width: 180px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  font-size: 100%;
  letter-spacing: 5px;
  color: white;
}

.installer#windows .info::before {
  content: '⊞';
}

.installer#mac .info::before {
  content: '⏍';
}

.installer .details {
  position: absolute;
  top: 10px;
  left: 210px;
  height: 200px;
  width: 360px;
  padding: 10px;
}

.installer .details p {
  margin: 0;
  font-weight: bolder;
  font-size: 120%;
  color: #444;
}

.installer .details span {
  color: #cacaca;
}

.installer .details ul {
  padding-left: 0;
  list-style: none;
  color: #888;
}

.installer .details ul li {
  margin-left: 0;
  margin-bottom: 8px;
  opacity: 0;
  -webkit-transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  transition: all 0.3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

.installer .details ul li::before {
  content: '⧈';
  margin-right: 10px;
  color: #ccc;
}

.installer:target .details ul li {
  margin-left: 10px;
  opacity: 1;
}

.installer:target .details ul li:nth-child(1) {
  -webkit-transition-delay: 0.1s;
  transition-delay: 0.1s;
}

.installer:target .details ul li:nth-child(2) {
  -webkit-transition-delay: 0.2s;
  transition-delay: 0.2s;
}

.installer:target .details ul li:nth-child(3) {
  -webkit-transition-delay: 0.3s;
  transition-delay: 0.3s;
}

.installer:target .details ul li:nth-child(4) {
  -webkit-transition-delay: 0.4s;
  transition-delay: 0.4s;
}

.installer:target .details ul li:nth-child(5) {
  -webkit-transition-delay: 0.5s;
  transition-delay: 0.5s;
}

.installer label {
  position: absolute;
  bottom: 20px;
  right: 60px;
  height: 40px;
  width: 260px;
  border-radius: 5px;
  overflow: hidden;
  cursor: pointer;
}

.installer label input {
  display: none;
}

.installer label a {
  position: absolute;
  width: 100%;
  height: 100%;
}

.installer label span {
  position: absolute;
  height: 100%;
  width: 100%;
  line-height: 40px;
  text-align: center;
  color: white;
  background: black;
}

.installer label input:checked ~ span {
  background: #222;
  -webkit-animation: downloadSuccess 3.1s ease;
  animation: downloadSuccess 3.1s ease;
}

.installer label span::after {
  content: 'DOWNLOAD';
  position: absolute;
  width: 80%;
  height: 100%;
  top: 0;
  left: 10%;
}

.installer label input:checked ~ span::after {
  content: '✔ SUCCESS!';
  -webkit-animation: downloadState 3s;
  animation: downloadState 3s;
}

.installer label span::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  opacity: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 5px;
}

.installer label input:checked ~ span::before {
  -webkit-animation: downloadProgress 3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
  animation: downloadProgress 3s cubic-bezier(0.67, 0.13, 0.1, 0.81);
}

@-webkit-keyframes downloadSuccess {
  0%,
  90% {
    background: black;
  }

  100% {
    background: #222;
  }
}

@keyframes downloadSuccess {
  0%,
  90% {
    background: black;
  }

  100% {
    background: #222;
  }
}

@-webkit-keyframes downloadState {
  0%,
  95% {
    content: 'DOWNLOADING...';
  }

  100% {
    content: '✔ SUCCESS!';
  }
}

@keyframes downloadState {
  0%,
  95% {
    content: 'DOWNLOADING...';
  }

  100% {
    content: '✔ SUCCESS!';
  }
}

@-webkit-keyframes downloadProgress {
  0% {
    width: 5%;
    opacity: 1;
  }

  35% {
    width: 17%;
  }

  64% {
    width: 51%;
  }

  81% {
    width: 70%;
  }

  90% {
    width: 86%;
    opacity: 1;
  }

  100% {
    width: 100%;
    opacity: 0;
  }
}

@keyframes downloadProgress {
  0% {
    width: 5%;
    opacity: 1;
  }

  35% {
    width: 17%;
  }

  64% {
    width: 51%;
  }

  81% {
    width: 70%;
  }

  90% {
    width: 86%;
    opacity: 1;
  }

  100% {
    width: 100%;
    opacity: 0;
  }
}