<div class="route" id="index"></div>
<div class="route" id="oct-week-3"></div>
<div class="route" id="oct-week-4"></div>
<div class="route" id="nov-week-1"></div>
<div class="route" id="schedule"></div>
<main class="cal-device">
  <header class="cal-header">
    <div class="cal-subheader"></div>
    <div class="cal-bar">
      <div class="cal-button -left">
        <i class="fa fa-bars -calendar"></i>
        <a href="#index" class="fa fa-chevron-left -schedule"></a>
      </div>
      <div class="cal-title">
        <div class="cal-heading -calendar">Calendar</div>
        <div class="cal-heading -schedule">Wednesday, November 10</div>
      </div>
      <div class="cal-button -right">
        <i class="fa fa-search"></i>
      </div>
    </div>
  </header>
  <section class="cal-app">
    <header class="cal-week">
      <div class="cal-weekday">SUN</div>
      <div class="cal-weekday">MON</div>
      <div class="cal-weekday">TUE</div>
      <div class="cal-weekday">WED</div>
      <div class="cal-weekday">THU</div>
      <div class="cal-weekday">FRI</div>
      <div class="cal-weekday">SAT</div>
    </header>
    <div class="cal-scene -calendar">
      <div class="cal-month -october">
        <header class="cal-header">
          <a class="cal-link" href="#oct-week-1"><span>October</span></a>
          <a class="cal-arrow" href="#nov-week-1"><i class="fa fa-chevron-up"></i></a>
          <a class="cal-arrow" href="#oct-week-4"><i class="fa fa-chevron-up"></i></a>
        </header>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a href="#schedule"  class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
      </div>
      <div class="cal-month -november">
        <header class="cal-header">
          <a class="cal-link" href="#nov-week-1"><span>November</span></a>
          <a class="cal-arrow"><i class="fa fa-chevron-up"></i></a>
        </header>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a href="#schedule" class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a href="#schedule" class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a href="#schedule" class="cal-day"></a>
        <a href="#schedule" class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
      </div>
      <div class="cal-month -december">
        <header class="cal-header">
          <a class="cal-link"><span>December</span></a>
          <a class="cal-arrow" href="#nov-week-1"><i class="fa fa-chevron-down"></i></a>
          <a class="cal-arrow" href="#oct-week-3"><i class="fa fa-chevron-down"></i></a>
        </header>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a href="#schedule" class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a href="#schedule" class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
      </div>
      <div class="cal-month -january">
        <header class="cal-header">
          <div class="cal-link"><span>January</span></div>
          <a class="cal-arrow" href="#oct-week-4"><i class="fa fa-chevron-down"></i></a>
        </header>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
        <a class="cal-day"></a>
      </div>
    </div>
    <div class="cal-scene -schedule">
      <div class="cal-item">
        <div class="cal-time"><span>08:00</span></div>
        <div class="cal-task">
          <p>wake up</p>
        </div>
      </div>
      <div class="cal-item -long">
        <div class="cal-time"><span>12:15</span></div>
        <div class="cal-task">
          <p>meeting with the team, discussing the project requirements</p>
        </div>
      </div>
      <div class="cal-item">
        <div class="cal-time"><span>13:00</span></div>
        <div class="cal-task">
          <p>lunch with Peter</p>
          <a><i class="fa fa-map-marker"></i>cafe <q>Petit brasserie</q></a>
        </div>
      </div>
      <div class="cal-item">
        <div class="cal-time"><span>14:30</span></div>
        <div class="cal-task">
          <p>call with Johnathan and Stevie</p>
        </div>
      </div>
      <div class="cal-item -long">
        <div class="cal-time"><span>16:45</span></div>
        <div class="cal-task">
          <p>project presentation</p>
          <a><i class="fa fa-map-marker"></i>Head Office</a>
        </div>
      </div>
      <div class="cal-item">
        <div class="cal-time"><span>18:00</span></div>
        <div class="cal-task">
          <p>call with Johnathan and Stevie</p>
        </div>
      </div>
      <div class="cal-item -long">
        <div class="cal-time"><span>19:00</span></div>
        <div class="cal-task">
          <p>David's birthday party</p>
          <a><i class="fa fa-map-marker"></i>bar <q>Tailor's John</q></a>
        </div>
      </div>
      <div class="cal-item">
        <div class="cal-time"></div>
        <div class="cal-task"></div>
      </div>
    </div>
  </section>
</main>
<div class="meta">
  <h1>CSS-only Colorful <br>Calendar Concept</h1>
  <p>
    Dribbble Rework<br />
    Original Shot by <a href="https://dribbble.com/shots/2335073-Calendar-App-Animation" target="_blank">Ludmila Shevchenko</a>
  </p>
  <p>
    Click on the arrows (when enabled) and the highlighted date to see the effect.<br>
    You can also go <strong>back</strong> in your browser to navigate between scenes, or click the left arrow in the schedule view.
  </p>
  <p>
    Works in all modern browsers.
  </p>
</div>

@import url(https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600);

$device-width: 54vh;
$device-height: 96vh;
$tile-size: $device-width / 7;

$duration: 0.6s;
$easing: cubic-bezier(0.645, 0.045, 0.355, 1);

$type-small: $tile-size / 4;
$type-normal: $tile-size / 3;
$type-large: $tile-size / 2.5;

$colors: (
  #FBEC6B,
  #F4BC6B,
  #EB8B6B,
  #E0536B,
  #D6306D,
  #A32C68,
  #722A65,
  #422662,
  #12255D,
  #275B75,
  #3C918B,
  #52C6A2,
  #66F8B6,
  lighten(#66f8b6, 10%)
);

@function list-slice($list, $from, $to: length($list)) {
  $result: ();
  
  @for $i from $from through $to {
    $result: append($result, nth($list, $i));
  }
  
  @return $result;
}

@function shadows($from: 1, $app: false) {
  $shadows: ();
  $i: 0;
  
  @if ($app) {
    @each $color in list-slice($colors, $from, length($colors) - 1) {
      $i: $i + 1;
      $shadows: append($shadows, $color, comma);
    }
    
    @return $shadows;
  }

  @each $color in list-slice($colors, $from, length($colors) - 1) {
    $i: $i + 1;
    $subshadows: ();
    $darkest-color: nth(list-slice($colors, $from), $i + 1);

    @for $j from 1 through 7 {
      $subshadows: append(
        $subshadows,
        ($j - 1) * $tile-size $i * $tile-size mix($darkest-color, $color, percentage($j / 7)),
        comma);
    }

    $shadows: append($shadows, $subshadows, comma);
  }
  
  @return $shadows;
}

%transition {
  transition: all $duration $easing;
}

[id="index"]:target ~ .cal-device {
  .cal-scene.-calendar {
    > .cal-month, > .cal-header {
      animation: fade-in $duration $duration * 0.5 $easing both;
    }
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

[id="oct-week-3"]:target ~ .cal-device {
  [href="#oct-week-3"] {
    cursor: default;
  }
  
  .cal-app {
    background: linear-gradient(shadows(1, true));
  }
}

[id="oct-week-4"]:target ~ .cal-device {
  .cal-month {
    transform: translateY(-$tile-size);
      
    &.-october > .cal-header {
      transform:
        translateY($tile-size)
        translateX($tile-size * 4);
    }
  }
  
  .cal-scene.-calendar:before {
    box-shadow: shadows(2);
  }
  
  .cal-app {
    background: linear-gradient(shadows(2, true));
  }
  
  [href="#oct-week-4"] {
    z-index: -1;
  }
}

[id="nov-week-1"]:target ~ .cal-device {
  .cal-month {
    transform: translateY(-$tile-size * 2);
      
      &.-october > .cal-header {
        transform:
          translateY($tile-size)
          translateX($tile-size * 4);
        opacity: 0;
      }
      
      &.-november {
        @extend %inactive-month;
      }
      
      &.-december {
        @extend %active-month;
      }
  }
  
  .cal-app {
    background: linear-gradient(shadows(3, true));
  }
  
  .cal-scene.-calendar:before {
    box-shadow: shadows(3);
  }
}

[id="nov-week-2"]:target ~ .cal-device {
  .cal-month {
    transform: translateY(-$tile-size * 3);
      
      &.-october > .cal-header {
        opacity: 0;
      }
      
      &.-november {
        @extend %inactive-month;
      }
      
      &.-december {
        @extend %active-month;
      }
  }
  
  .cal-scene.-calendar:before {
    box-shadow: shadows(4);
  }
  
  .cal-app {
    background: linear-gradient(shadows(4, true));
  }
}

[id="schedule"]:target ~ .cal-device {
  .cal-bar .-schedule {
    opacity: 1;
  }
  
  .cal-bar .-calendar {
    opacity: 0;
  }
  
  .cal-scene.-schedule {
    opacity: 1;
    z-index: 2;
  }
  
  %schedule-text {
    transform: translateX(0);
  }
  
  @for $i from 1 through 7 {
    .cal-item:nth-child(#{$i}) %schedule-text {
      transition-delay: 0.06s * ($i - 1);
    }
  }
  
  .cal-scene.-calendar {
    &, * {
      transition-delay: $duration;
    }
  }
}

.cal-device {
  width: $device-width;
  height: $device-height;
  background: white;
  
  > .cal-header {
    height: $tile-size * 1.5;
    background: #1c3e69;
  }
  
  // Initial state
  .cal-month.-october, .cal-month.-december, .cal-month.-january {
      @extend %inactive-month;
  }
  
  .cal-month.-november {
    @extend %active-month;
  }
}

.cal-app {
  height: $device-height - $tile-size * 1.5;
  width: 100%;
  background: linear-gradient(shadows(1, true));
}

.cal-week {
  height: $tile-size;
  width: 100%;
  display: flex;
  flex-direction: row;
}

.cal-weekday {
  color: white;
  width: $tile-size;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
  font-weight: 600;
  font-size: $type-normal;
}

.fa {
  font-size: $type-normal;
}

.cal-scene {
  @extend %transition;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  overflow: hidden;
  
  &.-calendar {
    &:before {
      content: '';
      display: block;
      height: $tile-size;
      width: $tile-size;
      position: absolute;
      top: -$tile-size;
      left: 0;
      box-shadow: shadows();
      transition: box-shadow $duration $easing;
    }
  }
  
  &.-schedule {
    z-index: -1;
    opacity: 0;
  }
}

%inactive-month {
  > .cal-header {    
    transform: translateX($tile-size * 4);

    > .cal-link {
      background-color: rgba(white, 0.4);
      > span {
        transform: translateX(calc(-50% - #{$tile-size / 4})) translateY(-50%);
        color: white;
      }
    }

    > .cal-arrow {
      opacity: 1;
      pointer-events: inherit;
    }
  }
  
  .cal-day {
    color: rgba(white, 0.4);
  }
  
  &.-october {
    .cal-arrow {
      color: #EB8B6B;
    }
  }
  
  &.-november {
    .cal-arrow {
      color: #D6306D;
    }
  }
  
  &.-december {
    .cal-arrow {
      color: #102152;
    }
  }
  
  &.-january {
    .cal-arrow {
      color: #97FACD;
    }
  }
}

%active-month {
  > .cal-header {    
    transform: translateX($tile-size * 2);
  }
  
  .cal-link {
    background-color: white;
    color: gray;

    > span {
      transform: translateX(-50%) translateY(-50%);
    }
  }

  .cal-arrow {
    opacity: 0;
    pointer-events: none;
  }
  
  .cal-day {
    color: white;
  }
  
  &.-november {
    .cal-link span {
      color: #DA3F6C;
    } 
  }
  
  &.-december {
    .cal-link span {
      color: #26255F;
    } 
  }
}

.cal-month {
  display: block;
  @extend %cf;
  counter-reset: month;
  transition: transform $duration $easing;
  z-index: 1;
  
  &:first-child {
    margin-top: -$tile-size;
    @extend %inactive-month;
    
    > .cal-header {
      top: 2 * $tile-size;
    }
    
    ~ .cal-month {
      margin-top: -$tile-size;
    }
  }
  
  > .cal-header {
    position: absolute;
    height: $tile-size;
    width: $tile-size * 3;
    padding: $tile-size / 3.5;
    z-index: 1;
    transition: all $duration $easing;
    
    > .cal-link {
      display: block;
      height: 100%;
      width: 100%;
      font-size: $type-small;
      text-decoration: none;
      color: gray;
      text-transform: uppercase;
      padding: $type-normal / 4 $type-normal * 2;
      border-radius: $type-normal;
      background: white;
      transition: all $duration $easing;
      font-weight: 600;
      
      > span {
        display: block;
        position: absolute;
        top: 48%; // Uppercase text gets vertically centered weirdly.
        left: 50%;
        transition: all $duration $easing;
      }
    }
  }
  
  &.-january {
    margin-top: 0 !important;
  }
}

.cal-subheader {
  height: $tile-size / 2;
  width: 100%;
}

.cal-bar {
  height: $tile-size;
  display: flex;
  flex-direction: row;
  align-items: center;
  
  > .cal-title {
    flex-grow: 1;
    height: 100%;
  }
  
  .-schedule {
    opacity: 0;
  }
}

.cal-button {
  width: $tile-size;
  height: $tile-size;
  
  > * {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    @extend %transition;
    font-size: $type-large;
  }
}

.cal-title {
  > .cal-heading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: $type-large;
    @extend %transition;
  }
}

.cal-arrow {
  position: absolute;
  height: $tile-size;
  width: $tile-size;
  background: white;
  top: 0;
  right: 0;
  padding: $tile-size / 6;
  background-clip: content-box;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  transition: all $duration $easing;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  color: gray;
  
  // Stupid font awesome icons
  .fa-chevron-up {
    top: -1px;
  }
}

.cal-day {
  counter-increment: month;
  width: $tile-size;
  height: $tile-size;
  display: block;
  float: left;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: $type-normal;
  @extend %transition;
  
  &[href="#schedule"]:before {
    background: rgba(white, 0.4);
  }
  
  &:before {
    content: counter(month);
    display: block;
    height: 75%;
    width: 75%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
  }
}

.cal-item {
  height: $tile-size;
  width: 100%;
  display: flex;
  flex-direction: row;
  
  &.-long {
    height: $tile-size * 2;
  }
  
  @for $i from 1 through 8 {
    &:nth-child(#{$i}) {
      > .cal-time {      
        background-color: mix(#BD1F50, #FA739D, percentage(($i - 1) / 8));
      }
      
      > .cal-task {
        background-color: mix(#E8B1C2, white, percentage(($i - 1) / 8));
      }
    }
  }
}

.cal-time {
  width: 2 * $tile-size;
  flex-basis: 2 * $tile-size;
  height: 100%;
  justify-content: center;
  line-height: $tile-size;
  align-items: center;
  display: flex;
  flex-direction: column;
  color: white;

  > * {
    @extend %schedule-text;
    transition: all $duration $easing;
    transform: translateX($tile-size * -2);
    font-weight: 600;
    font-size: $type-normal;
  }
}

.cal-task {
  flex-basis: 5 * $tile-size;
  height: 100%;
  background-color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 $type-normal;
  font-size: $type-small;

  > p {
    margin-top: 0;
    margin-bottom: 0;
    color: #12255E;
  }

  > a {
    text-decoration: none;
    color: #EA80A2;
    font-weight: 600;
    
    > .fa {
      margin-right: $type-small / 2;
    }
  }

  > * {
    @extend %schedule-text;
    transition: all $duration $easing;
    transform: translateX($tile-size * 5);
  }
}

.meta {
  flex-basis: calc(80% - #{$device-width});
  font-size: $type-normal;
  font-weight: 300;
  
  p, a { color: rgba(white, 0.7); }
  h1 {
    font-size: $type-large * 3;
    line-height: $type-large * 3;
    font-weight: 300;
    color: white;
  }
  p { line-height: 1.4; }
  
  a:hover {
    color: rgba(white, 0.7);
  }
  
  @media (max-width: 750px) {
    display: none;
  }
}

body {
  background: #4ACDDE;
  background: linear-gradient(135deg, #4EFFDF, #48BBDE, #F47EC6);
  font-family: Source Sans Pro, sans-serif;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
  overflow: hidden;
  
  @media (max-width: 750px) {
    justify-content: center;
  }
}

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  quotes: "«" "»";
}

*, *:before, *:after {
  box-sizing: border-box;
  position: relative;
}

%cf:before,
%cf:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

%cf:after {
    clear: both;
}