*, *:after, *:before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  background: #2c3e50;
}

.phone {
  background: #ccc;
  -webkit-box-shadow: 0 0 3em rgba(0, 0, 0, 0.7);
  box-shadow: 0 0 3em rgba(0, 0, 0, 0.7);
  height: 100%;
  left: 50%;
  max-height: 568px;
  max-width: 320px;
  position: absolute;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 100%;
}
.phone:after, .phone:before {
  display: none;
  position: absolute;
  pointer-event: none;
}
.phone:before {
  background: rgba(0, 0, 0, 0.8);
  bottom: 0;
  color: rgba(255, 255, 255, 0.4);
  display: none;
  font-size: 5em;
  line-height: 6;
  left: 0;
  right: 0;
  text-align: center;
  top: 0;
  z-index: 2;
}

.phone.open:before {
  display: inline-block;
}

.phone__screen {
  height: 100%;
  overflow: hidden;
  padding-top: 3em;
  position: relative;
  width: 100%;
}

.top-bar {
  background: #222;
  height: 3em;
  padding: 0 0.25em;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 2;
}

.nav {
  background: #222;
  bottom: -6em;
  left: -15%;
  height: 10.5em;
  padding: 0 2.75em;
  position: absolute;
  -webkit-transform: rotate(10deg) translate3D(-5em, 10em, 0);
  -ms-transform: rotate(10deg) translate3D(-5em, 10em, 0);
  transform: rotate(10deg) translate3D(-5em, 10em, 0);
  -webkit-transition: 0.4s;
  transition: 0.4s;
  width: 120%;
  z-index: 2;
}

.nav.open {
  -webkit-transform: rotate(10deg) translate3D(0, 0, 0);
  -ms-transform: rotate(10deg) translate3D(0, 0, 0);
  transform: rotate(10deg) translate3D(0, 0, 0);
}

.nav__item {
  background: #ccc;
  border: 0.3em solid #222;
  border-radius: 50%;
  color: #222;
  display: inline-block;
  height: 3em;
  margin: 0 0.2em;
  position: relative;
  top: -1.5em;
  text-decoration: none;
  text-align: center;
  -webkit-transform: rotate(-10deg) translate3D(-5em, 10em, 0);
  -ms-transform: rotate(-10deg) translate3D(-5em, 10em, 0);
  transform: rotate(-10deg) translate3D(-5em, 10em, 0);
  -webkit-transition: 0.2s ease-in-out;
  transition: 0.2s ease-in-out;
  width: 3em;
}
.open .nav__item:nth-child(1) {
  -webkit-transform: rotate(-10deg) translate3D(0, 0, 0);
  -ms-transform: rotate(-10deg) translate3D(0, 0, 0);
  transform: rotate(-10deg) translate3D(0, 0, 0);
  -webkit-transition-delay: 0s;
  transition-delay: 0s;
}
.open .nav__item:nth-child(2) {
  -webkit-transform: rotate(-10deg) translate3D(0, 0, 0);
  -ms-transform: rotate(-10deg) translate3D(0, 0, 0);
  transform: rotate(-10deg) translate3D(0, 0, 0);
  -webkit-transition-delay: 0.1s;
  transition-delay: 0.1s;
}
.open .nav__item:nth-child(3) {
  -webkit-transform: rotate(-10deg) translate3D(0, 0, 0);
  -ms-transform: rotate(-10deg) translate3D(0, 0, 0);
  transform: rotate(-10deg) translate3D(0, 0, 0);
  -webkit-transition-delay: 0.2s;
  transition-delay: 0.2s;
}
.open .nav__item:nth-child(4) {
  -webkit-transform: rotate(-10deg) translate3D(0, 0, 0);
  -ms-transform: rotate(-10deg) translate3D(0, 0, 0);
  transform: rotate(-10deg) translate3D(0, 0, 0);
  -webkit-transition-delay: 0.3s;
  transition-delay: 0.3s;
}
.open .nav__item:nth-child(5) {
  -webkit-transform: rotate(-10deg) translate3D(0, 0, 0);
  -ms-transform: rotate(-10deg) translate3D(0, 0, 0);
  transform: rotate(-10deg) translate3D(0, 0, 0);
  -webkit-transition-delay: 0.4s;
  transition-delay: 0.4s;
}
.nav__item:before {
  font-size: 1.5em;
  line-height: 1.75;
}

.top-bar__icon {
  cursor: pointer;
  display: inline-block;
  font-size: 6px;
  height: 6em;
  margin: 2%;
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-transition: 0.2s ease-in-out;
  transition: 0.2s ease-in-out;
  width: 6em;
  -webkit-tap-highlight-color: transparent;
}
.top-bar__icon span {
  background: #fff;
  border-radius: 2em;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  height: 0.8em;
  position: absolute;
  -webkit-transition: 0.2s ease-in-out;
  transition: 0.2s ease-in-out;
  -webkit-tap-highlight-color: transparent;
  width: 50%;
}
.top-bar__icon span:nth-child(1) {
  border-radius: 2em 0 0 2em;
  left: 0;
  top: 1em;
}
.top-bar__icon span:nth-child(2) {
  border-radius: 0 2em 2em 0;
  top: 1em;
  right: 0;
}
.top-bar__icon span:nth-child(3) {
  left: 0;
  top: 2.6em;
  width: 100%;
}
.top-bar__icon span:nth-child(4) {
  border-radius: 2em 0 0 2em;
  left: 0;
  top: 4.2em;
}
.top-bar__icon span:nth-child(5) {
  border-radius: 0 2em 2em 0;
  right: 0;
  top: 4.2em;
}
.top-bar__icon.open span:nth-child(1) {
  -webkit-transform: rotate(45deg) translate(0.8em);
  -ms-transform: rotate(45deg) translate(0.8em);
  transform: rotate(45deg) translate(0.8em);
}
.top-bar__icon.open span:nth-child(2) {
  -webkit-transform: rotate(-45deg) translate(-0.9em);
  -ms-transform: rotate(-45deg) translate(-0.9em);
  transform: rotate(-45deg) translate(-0.9em);
}
.top-bar__icon.open span:nth-child(3) {
  opacity: 0;
}
.top-bar__icon.open span:nth-child(4) {
  -webkit-transform: rotate(-45deg) translate(0.8em);
  -ms-transform: rotate(-45deg) translate(0.8em);
  transform: rotate(-45deg) translate(0.8em);
}
.top-bar__icon.open span:nth-child(5) {
  -webkit-transform: rotate(45deg) translate(-0.9em);
  -ms-transform: rotate(45deg) translate(-0.9em);
  transform: rotate(45deg) translate(-0.9em);
}

iframe {
  height: 100%;
  width: 100%;
}