// - - - - - - - - - - - - - - - - - - - - - - - - -
// Buttons
// - - - - - - - - - - - - - - - - - - - - - - - - -

@mixin CHAMELEON-forms-buttons {
  .#{$button-namespace} {
    @extend %font-family-primary;

    box-shadow: none;
    color: #fff;
    border: 0;
    border-radius: 0;
    cursor: pointer;
    height: 40px;
    display: inline-block;
    font-size: rem-calc(15px);
    font-weight: 600;
    line-height: 1em;
    margin: 0;
    padding: 12px 35px;
    position: relative;
    text-align: center;
    text-decoration: none;
    text-shadow: 0 1px 0 rgba(0, 0, 0, .1);
    transition: all .2s ease-in-out;
    user-select: none;
    appearance: none;

    &:hover {
      text-decoration: none;
    }

    &:focus {
      outline: 0;
    }

    &.is-loading {
      padding-right: 30px;
      padding-left: 40px;

      &:before {
        content: "";
        position: absolute;
        top: 50%;
        left: 15px;
        margin-top: -5px;
        display: inline-block;
        width: 10px;
        height: 10px;
        border-width: 2px;
        border-style: solid;
        border-color: currentColor;
        border-right-color: transparent;
        border-radius: 50%;
        animation: 1s linear infinite btn-spin;
      }
    }

    &--small {
      padding: 7px 20px;
      font-size: rem-calc(12px);
      height: 30px;
      line-height: 1.2em;

      &.is-loading {
        padding-left: 30px;
        padding-right: 10px;

        &:before {
          left: 10px;
        }
      }
    }

    &--primary {
      background-color: $color-primary;
      border: 1px solid $color-primary;
      color: #fff;

      &:hover {
        background-color: lighten($color-primary, 5%);
        color: #fff;
      }

      &:active {
        background-color: darken($color-primary, 5%);
        color: #fff;
      }

      &.ghosted {
        border: 1px solid $color-primary;
        color: $color-primary;
        background-color: transparent;
        text-shadow: none;

        &:hover {
          background-color: $color-primary;
          color: #fff;
        }

        &:active {
          background-color: darken($color-primary, 5%);
        }
      }
    }

    &--secondary {
      background-color: $color-white;
      border: 1px solid $color-white;
      color: $color-primary;
      text-shadow: none;

      &:hover {
        background-color: lighten($color-white, 5%);
        color: $color-primary;
      }

      &:active {
        background-color: darken($color-white, 5%);
        color: $color-primary;
      }

      &.ghosted {
        background-color: transparent;
        border: 1px solid $color-white;
        color: $color-white;

        &:hover {
          background-color: $color-white;
          color: $color-primary;
        }

        &:active {
          background-color: darken($color-white, 5%);
        }
      }
    }

    &--tertiary {
      font-weight: 400;
      color: $color-primary;
      padding-right: 10px;
      padding-left: 0;

      @media #{$medium-up} {
        font-size: rem-calc(15px);
      }

      &:after {
        content: '»';
        color: inherit;
        right: -5px;
        transform: translateX(0) scale(.8);
        transition: transform 300ms cubic-bezier(0.155, 1.105, 0.295, 1.12);
        position: absolute;
      }

      &:hover:after {
        transform: translateX(5px) scale(1);
      }
    }

    &--neutral {
      background: $color-slate;
      border: 1px solid darken($color-slate , 3%);
      color: #fff;
      text-shadow: none;

      &:hover {
        background: lighten($color-slate, 5%);
      }

      &:active {
        background: darken($color-slate, 5%);
      }
    }

    &--disabled {
      cursor: not-allowed;
      opacity: .7;
      background: #d4d4d4;
      border: 1px solid darken(#d4d4d4, 10%);
      color: #444444;
      text-shadow: none;

      &:hover,
      &:active {
        background: #d4d4d4;
        color: #444444;
        border: 1px solid darken(#d4d4d4, 10%); 
      }
    }
  }

  .#{$button-namespace}--google,
  .#{$button-namespace}--github {
    background: #fff;
    color: $color-silver;
    border: 1px solid $color-smoke;
    padding-left: 40px;
    padding-right: 15px;
    text-shadow: none;

    &:before {
      background-repeat: no-repeat;
      background-position: center center;
      position: absolute;
      display: inline-block;
      content: "";
      width: 34px;
      height: 34px;
      top: 2px;
      left: 2px;
    }

    &--active,
    &:hover {
      background-color: $color-primary;
      border-color: darken($color-primary, 5%);
      color: #fff;
    }
  }

  .#{$button-namespace}--google {

    &:before {
      background-image: file-url('ui_icons/google.svg');
    }

    &--active:before,
    &:hover:before {
      background-image: file-url('ui_icons/google--active.svg');
    }
  }

  .#{$button-namespace}--github {

    &:before {
      background-image: file-url('ui_icons/github.svg');
    }

    &--active:before,
    &:hover:before {
      background-image: file-url('ui_icons/github--active.svg');
    }
  }

  .btn-group {
    .#{$button-namespace} {
      display: table;

      @media #{$medium-up} {
        display: inline-block;
      }

      + .#{$button-namespace} {
        margin-top: 5px;

        @media #{$medium-up} {
          margin-top: 0;
        }
      }
    }

    .#{$button-namespace} + .#{$button-namespace} {
      margin-left: 0;

      @media #{$medium-up} {
        margin-left: 10px;
      }
    }
  }
}

@keyframes btn-spin {
  100%{ transform: rotate(360deg) }
}