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HTML 

              
                .wrapper
  .container
    .alarm_cards
      .alarm_card.first.clearfix data-index=0
        .time
        .switcher
        .frequency
      .alarm_card.second.clearfix data-index=1
        .time
        .switcher.on
        .frequency
      .alarm_card.third.clearfix data-index=2
        .time
        .switcher
        .frequency

    .alarm_change_card_wrapper
      .alarm_change_card
        .frequency_block
          .title WHEN?
          .days
            .day Mo
            .day Tue
            .day We
            .day Th
            .day Fr
            .day.free Sa
            .day.free Su
        .time_block
          .title WHAT TIME?
          .time
            .hours
              i.up.fa.fa-caret-up
              .value 17
              i.down.fa.fa-caret-down
            .minutes
              i.up.fa.fa-caret-up
              .value 53
              i.down.fa.fa-caret-down
          
        .saving_button SAVE
!

CSS 

              
                $COLOR_WHITE: #fff
$MAX_WIDTH: 400px
$HEIGHT: 500px
$SCALE_FACTOR_SMALL: .8
$SCALE_FACTOR_LARGE: 1
$OPACITY_FACTOR_SMALL: .6
$OPACITY_FACTOR_LARGE: 1
$WRAPPER_GRADIENT: linear-gradient(45deg, #495082, #4e7797)
$CONTAINER_GRADIENT: linear-gradient(-45deg, #6e91e9, #70acee)
$FIRST_ALARM_GRADIENT: linear-gradient(to right, #5c6cc1, #84a3df)
$SECOND_ALARM_GRADIENT: linear-gradient(to right, #f1c29d, #f1de94)
$THIRD_ALARM_GRADIENT: linear-gradient(to right, #8cd2d9, #afe3d1)
$TIME_BLOCK_TITLE_GRADIENT: linear-gradient(to right, #fed1a7, #feeca8)
$FREQUENCY_BLOCK_TITLE_GRADIENT: linear-gradient(to right, #93dccc, #9cd2f9)

html
  height: 100%
  min-height: $HEIGHT

body
  height: 100%
  margin: 0
  background-repeat: no-repeat
  background-attachment: fixed
  font-family: 'Roboto', 'Arial', sans-serif
  background: $WRAPPER_GRADIENT

*
  box-sizing: border-box
  
.clearfix
  &::after
    content: ''
    display: table
    clear: both

.wrapper
  width: 100%
  height: 100%
  position: absolute
.container
  background: $CONTAINER_GRADIENT
  max-width: $MAX_WIDTH
  width: calc(100% - 20px)
  height: $HEIGHT
  left: 50%
  top: 50%
  position: absolute
  transform: translateX(-50%) translateY(-50%)
  box-shadow: 0 5px 10px rgba(0, 0, 0, .2)
  overflow: hidden
  .alarm_cards
    padding: 70px 20px 20px
    display: inline-block
    height: 100%
    width: 100%
    position: absolute
    &.hidden
      animation: hide_alarm_cards 1s forwards
    &.shown
      animation: show_alarm_cards 1.5s forwards
    .alarm_card
      border-radius: 0 0 8px 8px
      padding: 20px 10px 20px 20px
      position: relative
      margin: 0 auto
      box-shadow: 0 5px 10px rgba(0, 0, 0, .2)
      cursor: pointer
      .time
        color: $COLOR_WHITE
        font-size: 50px
        line-height: 62px
        font-weight: 300
        position: relative
        display: inline-block
        float: left
        margin-top: 5px
        position: relative
      .switcher
        width: 90px
        height: 60px
        border: 2px solid $COLOR_WHITE
        border-radius: 40px
        position: relative
        display: inline-block
        float: right
        cursor: pointer
        box-shadow: inset 0 1px 2px rgba(0, 0, 0, .2)
        box-sizing: border-box
        &.on
          background-color: rgba(255, 255, 255, .3)
          &::after
            transform: translateX(28px)
        &::after
          content: ' '
          background-color: $COLOR_WHITE
          border-radius: 50%
          position: absolute
          transform: translateX(-2px)
          top: -2px
          height: 60px
          width: 60px
          box-shadow: 0 3px 5px rgba(0, 0, 0, .3)
          transition: transform .2s ease-in-out
      .frequency
        float: left
        width: 100%
        color: $COLOR_WHITE
        &::before
          font-family: FontAwesome
          content: "\f133"
          font-size: 14px
          color: $COLOR_WHITE
          margin-right: 6px
          vertical-align: top
          opacity: $OPACITY_FACTOR_SMALL
      &.first
        background: $FIRST_ALARM_GRADIENT
        z-index: 3
        width: 100%
      &.second
        background: $SECOND_ALARM_GRADIENT
        z-index: 2
        width: 95%
      &.third
        background: $THIRD_ALARM_GRADIENT
        z-index: 1
        width: 90%
        
.alarm_change_card_wrapper
  width: $MAX_WIDTH
  height: $HEIGHT
  padding: 70px 20px 20px
  position: absolute
  transform: translateX($MAX_WIDTH)
  &.shown
    animation: show_alarm_change_card_wrapper 1s .5s forwards
    .alarm_change_card
      animation: show_alarm_change_card .5s 1s forwards
  &.hidden
    animation: hide_alarm_change_card_wrapper 1s forwards
    .alarm_change_card
      animation: hide_alarm_change_card .5s forwards
      
  .alarm_change_card
    width: 100%
    height: 100%
    border-radius: 8px
    transform: scale($SCALE_FACTOR_SMALL)
    opacity: $OPACITY_FACTOR_SMALL
    .title
      width: 100%
      padding: 10px
      border-radius: 4px
      color: rgba(0, 0, 0, .4)
      box-shadow: 0 3px 5px rgba(0, 0, 0, .2)
      position: relative
      font-size: 24px
    .time_block
      .title
        background: $TIME_BLOCK_TITLE_GRADIENT
      .time
        text-align: center
        padding: 5px
        background-color: #6b6ec5
        .hours,
        .minutes
          display: inline-block
          color: $COLOR_WHITE
          font-size: 42px
        .hours
          .value
            &::after
              content: ':'
              margin: 0 5px
          .up,
          .down
            margin-left: -18px
        .up,
        .down
          transition: all .2s ease-in-out
          cursor: pointer
          line-height: 20px
          &:hover
            opacity: .6
    .frequency_block
      border-radius: 0 0 8px 8px
      position: relative
      margin: 0 auto 20px
      .title
        background: $FREQUENCY_BLOCK_TITLE_GRADIENT
      .days
        background-color: #6b6ec5
        color: $COLOR_WHITE
        padding: 20px
        text-align: center
        .day
          $DAY_WIDTH: calc((100% - 5px*6) / 7)
          display: inline-block
          width: $DAY_WIDTH
          height: $DAY_WIDTH
          font-size: 20px
          cursor: pointer
          line-height: 40px
          border-radius: 50%
          box-sizing: border-box
          &.active
            background-color: rgba(0, 0, 0, .2)
          &.free
            color: #abefc0

.saving_button
  padding: 20px
  color: $COLOR_WHITE
  background-color: #4c6ea5
  bottom: 0
  position: absolute
  left: 50%
  transform: translateX(-50%)
  border-radius: 30px
  padding: 20px 60px
  cursor: pointer
  transition: all .3s linear
  &:hover
    color: #4c6ea5
    background-color: $COLOR_WHITE
  
            
/************ Animations ***********/
@keyframes hide_alarm_cards
  50%
    transform: scale($SCALE_FACTOR_SMALL)
    opacity: $OPACITY_FACTOR_SMALL
  100%
    opacity: $OPACITY_FACTOR_SMALL
    transform: scale($SCALE_FACTOR_SMALL) translateX(-120%)
  
@keyframes show_alarm_cards
  0%
    transform: scale($SCALE_FACTOR_SMALL) translateX(-120%)
    opacity: $OPACITY_FACTOR_SMALL
  33%
    transform: scale($SCALE_FACTOR_SMALL) translateX(-120%)
    opacity: $OPACITY_FACTOR_SMALL
  66%
    transform: scale($SCALE_FACTOR_SMALL) translateX(0)
    opacity: $OPACITY_FACTOR_SMALL
  100%
    opacity: $OPACITY_FACTOR_LARGE
    transform: scale($SCALE_FACTOR_LARGE) translateX(0)
    
@keyframes show_alarm_change_card_wrapper
  50%
    transform: translateX(0)
  100%
    transform: translateX(0)
  
@keyframes hide_alarm_change_card_wrapper
  0%
    transform: translateX(0)
  50%
    transform: translateX(0)
  100%
    transform: translateX($MAX_WIDTH)
  
@keyframes show_alarm_change_card
  100%
    opacity: $OPACITY_FACTOR_LARGE
    transform: scale($SCALE_FACTOR_LARGE)
  
@keyframes hide_alarm_change_card
  0%
    opacity: $OPACITY_FACTOR_LARGE
    transform: scale($SCALE_FACTOR_LARGE)
  100%
    opacity: $OPACITY_FACTOR_SMALL
    transform: scale($SCALE_FACTOR_SMALL)
!

JS 

              
                Alarms = []
currentAlarmNumber = null

changeTime = (value, max, actionType) ->
  if actionType is 'increase'
    value++
    value = 0 if value > max
  else
    value--
    value = max if value < 0

  value = "0#{value}" if value < 10
  value

getFrequencyText = (frequency) ->
  days = ['Mo', 'Tue', 'We', 'Th', 'Fr', 'Sa', 'Su'].filter (element, index) ->
    index in frequency
  
  days = ['Everyday'] if days.length is 7
  days.join ' '
  
setAlarm = (alarmNumber, hours, minutes, frequency) ->
  minutes = "0#{minutes}" if minutes < 10
  $alarm_card = $($('.alarm_card')[alarmNumber])
  $alarm_card.find('.time').html "#{hours}:#{minutes}"
  $alarm_card.find('.frequency').html getFrequencyText(frequency)
    
  Alarms[alarmNumber] =
    hours: hours
    minutes: minutes
    frequency: frequency

$ ->
  $('.switcher').on 'click', (e) ->
    e.stopPropagation()
    $(@).toggleClass 'on'
  
  $('.alarm_card').on 'click', ->
    $day = $('.day')
    $day.removeClass('active')
    
    window.currentAlarmNumber = $(@).data('index')
    currentAlarm = Alarms[window.currentAlarmNumber]
        
    currentAlarm.frequency.forEach (value) ->
      $($day[value]).addClass('active')
    
    hours = currentAlarm.hours
    hours = "0#{hours}" if hours < 10
    minutes = currentAlarm.minutes
    $('.hours .value').text(hours)
    $('.minutes .value').text(minutes)
    
    $('.alarm_cards').removeClass('shown').addClass('hidden')
    $('.alarm_change_card_wrapper').removeClass('hidden').addClass('shown')
    
  $('.day').on 'click', ->
    $(@).toggleClass 'active'
  
  $('.saving_button').on 'click', ->
    $('.alarm_cards').removeClass('hidden').addClass('shown')
    $('.alarm_change_card_wrapper').removeClass('shown').addClass('hidden')
 
    hours = parseInt $('.hours .value').text()
    minutes = parseInt $('.minutes .value').text()
    frequency = []
    $('.day').each (index, element) ->
      frequency.push(index) if $(element).hasClass('active')

    setAlarm(window.currentAlarmNumber, hours, minutes, frequency)
  
  ######## Set time ########
  $('.hours .up').on 'click', ->
    newHours = changeTime parseInt($('.hours .value').text()), 23, 'increase'
    $('.hours .value').text newHours
    
  $('.hours .down').on 'click', ->
    newHours = changeTime parseInt($('.hours .value').text()), 23, 'decrease'
    $('.hours .value').text newHours
    
  $('.minutes .up').on 'click', ->
    newMinutes = changeTime parseInt($('.minutes .value').text()), 59, 'increase'
    $('.minutes .value').text newMinutes
    
  $('.minutes .down').on 'click', ->
    newMinutes = changeTime parseInt($('.minutes .value').text()), 59, 'decrease'
    $('.minutes .value').text newMinutes
  
  setAlarm(0, 18, 0, [0, 1, 2, 3, 4, 5, 6])
  setAlarm(1, 6, 0, [1, 2, 3])
  setAlarm(2, 12, 0, [3, 4, 5, 6])
!
999px

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