/* Checkboxes
   ========================================================================== */

/* Remove default checkbox */
[type="checkbox"]:not(:checked),
[type="checkbox"]:checked {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

// Checkbox Styles
[type="checkbox"] {
  // Text Label Style
  + span:not(.lever) {
    position: relative;
    padding-left: calculateRem(35px);
    cursor: pointer;
    display: inline-block;
    height: calculateRem(25px);
    line-height: calculateRem(25px);
    font-size: 1rem;
    user-select: none;
  }

  /* checkbox aspect */
  + span:not(.lever):before,
  &:not(.filled-in) + span:not(.lever):after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: calculateRem(18px);
    height: calculateRem(18px);
    z-index: 0;
    border: calculateRem(2px) solid $radio-empty-color;
    border-radius: calculateRem(1px);
    margin-top: calculateRem(3px);
    transition: .2s;
  }

  &:not(.filled-in) + span:not(.lever):after {
    border: 0;
    transform: scale(0);
  }

  &:not(:checked):disabled + span:not(.lever):before {
    border: none;
    background-color: $input-disabled-color;
  }

  // Focused styles
  &.tabbed:focus + span:not(.lever):after {
    transform: scale(1);
    border: 0;
    border-radius: 50%;
    box-shadow: 0 0 0 calculateRem(10px) rgba(0,0,0,.1);
    background-color: rgba(0,0,0,.1);
  }
}

[type="checkbox"]:checked {
  + span:not(.lever):before {
    top: calculateRem(-4px);
    left: calculateRem(-5px);
    width: calculateRem(12px);
    height: calculateRem(22px);
    border-top: calculateRem(2px) solid transparent;
    border-left: calculateRem(2px) solid transparent;
    border-right: $radio-border;
    border-bottom: $radio-border;
    transform: rotate(40deg);
    backface-visibility: hidden;
    transform-origin: 100% 100%;
  }

  &:disabled + span:before {
    border-right: calculateRem(2px) solid $input-disabled-color;
    border-bottom: calculateRem(2px) solid $input-disabled-color;
  }
}

/* Indeterminate checkbox */
[type="checkbox"]:indeterminate {
  + span:not(.lever):before {
    top: calculateRem(-11px);
    left: calculateRem(-12px);
    width: calculateRem(10px);
    height: calculateRem(22px);
    border-top: none;
    border-left: none;
    border-right: $radio-border;
    border-bottom: none;
    transform: rotate(90deg);
    backface-visibility: hidden;
    transform-origin: 100% 100%;
  }

  // Disabled indeterminate
  &:disabled + span:not(.lever):before {
    border-right: calculateRem(2px) solid $input-disabled-color;
    background-color: transparent;
  }
}

// Filled in Style
[type="checkbox"].filled-in {
  // General
  + span:not(.lever):after {
    border-radius: calculateRem(2px);
  }

  + span:not(.lever):before,
  + span:not(.lever):after {
    content: '';
    left: 0;
    position: absolute;
    /* .1s delay is for check animation */
    transition: border .25s, background-color .25s, width .20s .1s, height .20s .1s, top .20s .1s, left .20s .1s;
    z-index: 1;
  }

  // Unchecked style
  &:not(:checked) + span:not(.lever):before {
    width: 0;
    height: 0;
    border: calculateRem(3px) solid transparent;
    left: calculateRem(6px);
    top: calculateRem(10px);
    transform: rotateZ(37deg);
    transform-origin: 100% 100%;
  }

  &:not(:checked) + span:not(.lever):after {
    height: calculateRem(20px);
    width: calculateRem(20px);
    background-color: transparent;
    border: calculateRem(2px) solid $radio-empty-color;
    top: calculateRem(0px);
    z-index: 0;
  }

  // Checked style
  &:checked {
    + span:not(.lever):before {
      top: 0;
      left: calculateRem(1px);
      width: calculateRem(8px);
      height: calculateRem(13px);
      border-top: calculateRem(2px) solid transparent;
      border-left: calculateRem(2px) solid transparent;
      border-right: calculateRem(2px) solid $input-background;
      border-bottom: calculateRem(2px) solid $input-background;
      transform: rotateZ(37deg);
      transform-origin: 100% 100%;
    }

    + span:not(.lever):after {
      top: 0;
      width: calculateRem(20px);
      height: calculateRem(20px);
      border: calculateRem(2px) solid $secondary-color;
      background-color: $secondary-color;
      z-index: 0;
    }
  }

  // Focused styles
  &.tabbed:focus + span:not(.lever):after {
    border-radius: calculateRem(2px);
    border-color: $radio-empty-color;
    background-color: rgba(0,0,0,.1);
  }

  &.tabbed:checked:focus + span:not(.lever):after {
    border-radius: calculateRem(2px);
    background-color: $secondary-color;
    border-color: $secondary-color;
  }

  // Disabled style
  &:disabled:not(:checked) + span:not(.lever):before {
    background-color: transparent;
    border: calculateRem(2px) solid transparent;
  }

  &:disabled:not(:checked) + span:not(.lever):after {
    border-color: transparent;
    background-color: $input-disabled-solid-color;
  }

  &:disabled:checked + span:not(.lever):before {
    background-color: transparent;
  }

  &:disabled:checked + span:not(.lever):after {
    background-color: $input-disabled-solid-color;
    border-color: $input-disabled-solid-color;
  }
}
