// Bespoke Classes: https://github.com/markdalgleish/bespoke-classes
// Stylus: http://learnboost.github.io/stylus
// style taken from: https://github.com/markdalgleish/presentation-build-wars-gulp-vs-grunt/blob/91d0bed8913ed6a199de98e3d4f128afee6489a3/src/styles/main.styl

// @import url('https://fonts.googleapis.com/css?family=Open+Sans:300italic,300,600,700');
@import 'normalizecss/normalize.css'

primary = #00F3A5

slide_width = 640px
slide_height = 480px
slide_background = transparent

slide_transition_length = .6s
slide_transition_easing = ease
slide_transition_rotate_y = 20deg
// Safari bugs out on 3d transform-origins, so we have to fake it
slide_transition_nudge_x = -640px

bullet_transition_length = .3s
bullet_transition_easing = ease

spacer_gif = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7'

// base

*
  box-sizing: border-box
  margin: 0
  padding: 0

@media print
  *
    -webkit-print-color-adjust: exact

@page
  size: landscape
  margin: 0

// bespoke.js layout styles

article
  transition: all .3s ease
  display: none
  &.bespoke-parent
    display: block
    position: absolute
    top: 0
    bottom: 0
    left: 0
    right: 0
    overflow: hidden
    perspective: 600px
    @media print
      overflow: visible
      position: static

    &.green
      background: primary
    &.white
      background: white

.bespoke-slide
  transition:
    transform slide_transition_length slide_transition_easing,
    opacity slide_transition_length slide_transition_easing,
    background slide_transition_length slide_transition_easing
  transform-origin: 50% 50% 0
  transform: translate3d(0,0,0)
  backface-visibility: hidden
  display: flex
  flex-direction: column
  justify-content: center
  align-items: center
  text-align: center
  width: slide_width
  height: slide_height
  position: absolute
  top: 50%
  margin-top: (slide_height / 2) * -1
  left: 50%
  margin-left: (slide_width / 2) * -1
  background: slide_background
  padding: 40px
  border-radius: 0
  @media print
    zoom: 1 !important // disable bespoke-scale
    height: 743px // seems to correspond with an A4, landscape page height
    width: 100%
    page-break-before: always
    position: static
    margin: 0

.bespoke-before
  transform: translateX(slide_transition_nudge_x * -1) translateX(slide_width / -2) rotateY(slide_transition_rotate_y * -1) translateX(slide_width / -2)

.bespoke-after
  transform: translateX(slide_transition_nudge_x) translateX(slide_width / 2) rotateY(slide_transition_rotate_y) translateX(slide_width / 2)
  @media print
    transform: none

.bespoke-inactive
  opacity: 0
  pointer-events: none
  @media print
    opacity 1

.bespoke-active
  opacity: 1
  transition-delay: .2s

// bespoke-bullet styles

.bespoke-bullet
  transition: all bullet_transition_length bullet_transition_easing

.bespoke-bullet-inactive
  opacity: 0
  li&
    transform: translateX(-10px) translateZ(-10px) rotateY(20deg)
  @media print
    opacity: 1

.bespoke-bullet-active
  opacity: 1

// bespoke-scale styles

.bespoke-scale-parent
  perspective: 600px
  position: absolute
  top: 0
  left: 0
  right: 0
  bottom: 0
  pointer-events: none
  .bespoke-active
    pointer-events: auto
  @media print
    transform: none !important

// bespoke-progress styles

.bespoke-progress-parent
  position: absolute
  top: 0
  left: 0
  right: 0
  height: 5px
  @media only screen and (min-width: 1366px)
    height: 10px
  @media print
    display: none

.bespoke-progress-bar
  transition: width .6s ease
  position: absolute
  height: 100%
  background: darken(primary, 20%)

// backdrop styles

.emphatic,
.emphatic .bespoke-slide
  background: primary

.bespoke-backdrop
  position: absolute
  top: 0
  left: 0
  right: 0
  bottom: 0
  transform: translateZ(0)
  transition: opacity slide_transition_length slide_transition_easing
  opacity: 0
  z-index: -1
  &-active
    opacity: 1

// prism styles

pre
  padding: 26px !important
  border-radius: 8px
  border: none !important
  box-shadow: none !important
  span
    text-shadow: none !important

// content styles

body
  background: #303030
  font-family: 'open sans', helvetica, arial, sans-serif
  font-weight: 300
  font-size: 18px
  color: #f0f0f0
  .gif
    color: rgba(255,255,255,0.8)
  .bespoke-slide.emphatic-text
    color: rgba(0,0,0,0.5)

h1
  font-size: 72px
  font-weight: 600
  line-height: 82px
  letter-spacing: -2px
  margin-bottom: 16px
  margin-top: 0

h2
  font-weight: 300
  font-size: 42px
  letter-spacing: -1px
  margin-bottom: 8px
  color: #f0f0f0
  .bespoke-slide.emphatic-text &
    color: rgba(0,0,0,0.6)

h3
  font-size: 24px
  font-weight: 300
  margin-bottom: 24px
  color: #e0e0e0
  .bespoke-slide.emphatic-text &
    color: rgba(0,0,0,0.5)

hr
  visibility: hidden
  height: 20px

ul
  list-style: none

li
  margin-bottom: 12px

p
  margin: 0 50px 12px
  line-height: 22px

blockquote
  max-width: 75%

small
  font-size: 75%

a
  color: primary
  text-decoration: none
  &.black
    color: black
  .bespoke-slide.emphatic-text &
    color: rgba(0,0,0,0.7)
  .bespoke-slide.emphatic-text h1 &
    color: primary

.avatar
  display: block
  margin: 0 auto
  width: 120px
  height: 120px
  border-radius: 120px
  &--small
    width: 70px
    height: 70px

.logo
  background-position: center
  background-repeat: no-repeat

.gif
  background-size: cover
  background-position: center
  background-repeat: no-repeat