codecombat/app/styles/play/level/loading.sass

@import "app/styles/mixins"
@import "app/styles/bootstrap/variables"

@mixin wing-background($url: '', $backgroundPosition: left)
  background: black
  background-image: url($url)
  background-repeat: no-repeat
  background-position: top $backgroundPosition
  background-size: contain

#level-loading-view
  width: 100%
  height: 100%
  position: absolute
  z-index: 20
  $UNVEIL_TIME: 1.2s

  &.unveiled
    pointer-events: none
  
  .loading-details
    position: absolute
    top: 86px
    left: 50%
    $WIDTH: 450px
    width: $WIDTH
    height: 450px
    margin-left: (-$WIDTH / 2)
    z-index: 100
    background: transparent url(/images/level/code_editor_background.png) no-repeat
    background-size: 100% 100%
    color: darkslategray
    font-size: 15px
    padding: 80px 80px 40px 80px
    text-align: center
    // http://matthewlein.com/ceaser/  Bounce down a bit, then snap up.
    @include transition(top $UNVEIL_TIME cubic-bezier(0.285, -0.595, 0.670, -0.600))
    font-family: 'Open Sans Condensed'

    .level-loading-goals
      text-align: left

      .goals-title
        font-size: 32px
        color: black
        font-weight: bold

      li
        font-size: 20px
        color: black

    .progress-or-start-container
      position: absolute
      bottom: 95px
      width: 261px
      height: 80px
      left: 80px

      .load-progress
        width: 100%
        height: 36px
        margin: 20px auto 0 auto

        .progress
          height: 100%
          position: relative
          background-color: transparent

          .progress-bar
            width: 1%
            height: 100%
            transition-duration: 0
            border-radius: 9px
            background: transparent url(/images/level/loading_bar_fill.png) no-repeat

          &.active .progress-bar
            transition-duration: 1.2s

          .rim
            position: absolute
            left: 0
            top: 0
            width: 100%
            height: 100%
            background: transparent url(/images/level/loading_bar_rim.png) no-repeat
            background-size: 100% 100%

      .start-level-button
        display: none
        width: 100%
        margin: 0px auto
        font-size: 40px
        font-variant: small-caps

    #tip-wrapper
      position: absolute
      z-index: 2
      bottom: 40px
      left: 25px
      width: 401px
      color: #666

  .left-wing, .right-wing
    width: 100%
    height: 100%
    position: absolute

  .left-wing
    @include wing-background('/images/level/loading_left_wing.png', right)
    left: -50%
    @include transition(all $UNVEIL_TIME ease)

  .right-wing
    @include wing-background('/images/level/loading_right_wing.png', left)
    right: -50%
    @include transition(all $UNVEIL_TIME ease)