<main class="view0--active">
  <div class="modal">
    <div class="nav default-color">
      <div class="next nav-icon"><svg fill="#ececec" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"/><path d="M0-.25h24v24H0z" fill="none"/></svg></div>
      <div class="prev nav-icon"><svg fill="#ececec" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M15.41 16.09l-4.58-4.59 4.58-4.59L14 5.5l-6 6 6 6z"/><path d="M0-.5h24v24H0z" fill="none"/></svg></div>
    </div>
    <div class="modal__body">
      <div class="circ">
        <div class="circ3 default-color"></div>
        <div class="circ2"></div>
        <div class="circ1 default-color"></div>
      </div>
      <div class="content">
        <div class="tt">
          <h1 class="content__title"></h1>
          <p class="content__desc"></p>
        </div>
      </div>
      </div>
  </div>
</main>

*, *:before, *:after
  padding 0
  margin 0
  box-sizing border-box
  
box(arg)
  width arg
  height arg
  
// colors
color1 = #ff885d
color2 = #ACD8AA
color3 = #94B9AF
color4 = #06D6A0

.view0--active
  background color1
  .default-color
    background color1
.view1--active
  background color2
  .default-color
    background color2
.view2--active
  background color3
  .default-color
    background color3
.view3--active
  background color4
  .default-color
    background color4
  
body
  height 100vh
  width 100vw
  overflow hidden
main
  box(100%)
  display flex 
  align-items center
  justify-content center
  transition .5s

.modal
  height 400px
  width 700px
  border-radius 5px
  position relative
  &__body
    box(100%)
    box-shadow 0 0 38px 0 rgba(#000, .53)
    position relative
    overflow hidden

.nav  
  left 40px
  bottom -40px
  width 80px
  height 40px
  position absolute
  box-shadow 0 0 38px 0 rgba(#000, .53)
  transform translateY(-30px)
  opacity 0
  animation nav-animation .5s 1s ease forwards
  transition .5s
  .nav-icon
    box(40px)
    position absolute
    top 0
    display flex
    align-items center
    justify-content center
    cursor pointer
    transition .3s
  .prev
    left 0
    &:hover
      transform translateX(-2px)
  .next
    right 0 
    &:hover
      transform translateX(2px)
      
.content
  position absolute
  top 0
  left 0
  width 100%
  height 100%
  overflow hidden
  overflow-y auto
  padding 30px 140px 40px 50px
  color #ececec
  background #333
  h1
    padding-top 20px
    font-family 'Caesar Dressing'
    transform translateY(-20px)
    opacity 0
    animation animate-text-down 1s .6s forwards
    transition .5s
  p
    font-family 'Open Sans Condensed'
    font-size 18px
    padding-top 30px
    transform translateY(-20px)
    opacity 0
    animation animate-text-down 1s .9s forwards
    transition .5s
.circ
  box(300px)
  position absolute
  display flex
  align-items center
  justify-content center
  bottom -150px
  right -150px
  z-index 10
  animation main-circ 6s ease forwards infinite
  transition .5s
  > div
    position absolute
    border-radius 50%
    transform scale(0)
    transition .5s

.circ1
  box(100px)
  animation scale-circ ease .6s forwards

.circ2
  box(200px)
  background-color #fff
  animation scale-circ ease .6s .2s forwards
.circ3
  box(300px)
  animation scale-circ ease .6s .4s forwards
.tt
  transition .4s
body
  .fade-out
    .tt
      opacity 0
      transform translateY(-20px)

    .circ
      opacity 0
      transform scale(.5)

  
// Keyframes
@keyframes animate-text-down
  to
    opacity 1
    transform translateY(0)
    
@keyframes scale-circ
  80%
    transform scale(1.2)
  100%
    transform scale(1)

@keyframes nav-animation
  to
    transform none
    opacity 1
 

// Inspired by: https://dribbble.com/shots/3545421-017-Email-receipt

function $(e) { return document.querySelector(e); }

var next = $('.next');
var prev = $('.prev');
var index = 0;

var randomText = [
  {
    title: "Yeah Mr. White! Yeah Science!",
    desc: "Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cum atque placeat, blanditiis soluta possimus voluptatem ea nostrum illo, in facere perspiciatis eveniet voluptatum ex quia vel eaque optio, veritatis odio!"
  },
  {
    title: "Yeah Mr. White! Yeah Science!",
    desc: "Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facilis, quos, vero earum cumque debitis nesciunt doloribus saepe, eaque, dolore ea aut. Soluta voluptatem magnam possimus suscipit culpa at impedit tempora, perferendis ducimus reprehenderit eos? Expedita ipsa, natus. Sapiente laboriosam vero, minus possimus esse odio fuga dolore minima eius, tenetur tempora!"
  },
  {
    title: "Yeah Mr. White! Yeah Science!",
    desc: "Lorem ipsum dolor sit amet, consectetur adipisicing elit. Beatae fugit inventore."
  },
  {
    title: "Yeah Mr. White! Yeah Science!",
    desc: "Lorem ipsum dolor sit amet, consectetur adipisicing elit. Beatae fugit inventore. <br>1. Lorem Ipsum <br>2. Lorem Ipsum <br>3. Lorem Ipsum <br>4. Lorem Ipsum"
  } 
];

$('.content__title').innerHTML = randomText[0].title;
$('.content__desc').innerHTML = randomText[0].desc;

next.addEventListener('click', function() {
  if (index >= 0 && index <= 2) {
    toggleView();
    setTimeout(function() {
      $('.content__title').innerHTML = randomText[index].title;
      $('.content__desc').innerHTML = randomText[index].desc;      
    }, 500)
    $('main').classList.remove('view'+index+'--active');
    $('main').classList.add('view'+(index + 1)+'--active');
    index++;
  }
}, false);

prev.addEventListener('click', function() {
  if (index > 0 && index <= 3) {
    toggleView();
    setTimeout(function() {
      $('.content__title').innerHTML = randomText[index].title;
      $('.content__desc').innerHTML = randomText[index].desc;      
    }, 500)
    $('main').classList.remove('view'+(index)+'--active');
    $('main').classList.add('view'+(index - 1)+'--active');
    index--;
  }
}, false)

function toggleView() {
    $('main').classList.add('fade-out');
    setTimeout(function() {
      $('main').classList.remove('fade-out');
    }, 500)
}