/* Mixins */
@mixin linear-gradient( $start: #f1f1f1, $from: 0%, $stop: #d9d9d9, $to: 100% ) {
background: $start;
background: linear-gradient(to bottom, $start $from,$stop $to);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#{ie-hex-str($start)}', endColorstr='#{ie-hex-str($stop)}',GradientType=0 );
}

@mixin shadows($text: false, $top: #000000, $bottom: #ffffff, $weight: 1px, $blur: 0px) {
  @if $text == true {
    text-shadow: 0 -1px $blur rgba($top, .3), 0 $weight $blur rgba($bottom, .2);
  }
  @else {
    box-shadow: inset 0 $weight $blur rgba($top, .1), 0 $weight $blur rgba($bottom, .2);
  }
}

/* Colors */
$white:       #ffffff;
$offwhite:    #e9e9e9;
$lightgreen:  #99c740;
$darkgreen:   #7ba132;
$radius:      50px;

body {
  background: $lightgreen;
  margin-bottom: 5em;
  font-weight: 700;
  letter-spacing: -1px;
}

.newsletter {
  max-width: 500px;
  margin: 0 auto;
}
.newsletter-header {
  margin-top: 3em;
  margin-bottom: 4em;
  color: $white;
  font-size: 2.1em;
  text-align: center;
  text-shadow: 0 2px 0 $darkgreen;
}
.newsletter-email {
  background: $darkgreen;
  border: none;
  border-radius: $radius;
  padding: .65em 4em .65em 1em;
  width: 100%;
  color: $white;
  font-size: 2em;
  letter-spacing: -1px;
  
  @include shadows($weight: 2px);
  
  transition: background .2s;
  
  &:hover,
  &:focus {
    background: lighten($darkgreen, 2%);
  }
}
.newsletter-submit {
  position: absolute;
  top: 3px; right: 3px;
  height: calc(100% - 6px);
  padding: 1.15em 1.35em;
  
  border: 0;
  border-radius: $radius;
  color: $darkgreen;
  font-size: 1.5em;
  line-height: .5;
  
  box-shadow: 0 5px 20px rgba(0,0,0, .3);
  
  @include linear-gradient($white, 0%, $offwhite, 100%);
  
  span {
    padding: .1em .65em;
    border-radius: $radius;
    @include linear-gradient($offwhite, 0%, $white, 100%);
  }
}

.newsletter-checkbox {display:none;}

.newsletter-label {
  @include shadows($text: true, $weight: 2px);
  display: block;
  margin-top: 3em;
  position: relative;
  
  cursor: pointer;
  color: $darkgreen;
  font-size: 1.5em;
  
  svg {
    position: absolute;
    top: 3px;
    opacity: 0;
    transition: all .2s;
    
    &.checkmark {
      left: 0;
      opacity: 0;
    }
    &.cross {
      right: 0;
      opacity: 1;
    }
  }
  
  path {
    stroke: #fff;
    stroke-linecap: round;
    stroke-width: 4;
    -webkit-transition: opacity 0.1s;
    transition: opacity 0.1s;
    fill: none;
    -webkit-transition: stroke-dashoffset 0.2s;
    transition: stroke-dashoffset 0.2s;
  }
}

.newsletter-check {
  position: absolute;
  top: -.5em;
  right: 0;
  margin: 0;
  padding: 1em;
  width: 4.75em;
  height: 2.5em;
  
  -webkit-appearance: none;
  appearance: none;
  background: $darkgreen;
  border-radius: $radius;
  outline: none;
  cursor: pointer;
  
  transition: transform .2s, background .3s;
  
  @include shadows($weight: 2px);
  
  &:before,
  &:after {
    content: '';
    position: absolute;
    transition: all .2s;
  }
  &:before {
    height: calc(100% - 6px);
    width: 2.3em;
    top: 3px; left: 3px;
    border-radius: 50%;
    box-shadow: 0 5px 20px rgba(0,0,0, .3);
    
    @include linear-gradient($white, 0%, $offwhite, 80%);
  }
  &:after {
    top: calc(50% - .4em);
    left: calc(1.1em - 6px);
    height: .8em;
    width: .8em;
    
    border-radius: 50%;

    @include linear-gradient($offwhite, 30%, $white, 100%);
  }
}

.newsletter-checkbox:checked + label {
  .checkmark { opacity: 1; }
  .cross { opacity: 0; }
}
.newsletter-checkbox:checked + label .newsletter-check:before {
  transform: translateX( calc(100% - 2px) );
}
.newsletter-checkbox:checked + label .newsletter-check:after {
  transform: translateX( calc(100% + (1.1em + 8px)) );
}


/* Extras */
*, *:before, *:after {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
fieldset {
  border: 0;
  padding: 0;
  position: relative;
  width: 100%;
}

input:focus {
  outline: none;
}

::-webkit-input-placeholder {
  color: $white;
}