.button {
  position: relative;
  display: inline-block;

  margin: 0;

  padding: $button-padding;

  border-width: 0;
  border-style: solid;
  border-top-width: $button-border-width;
  border-bottom-width: $button-border-width;

  color: $button-color;

  vertical-align: middle;

  text-align: center;
  font-size: $button-font-size;

  cursor: pointer;

  &.button-icon {
    padding: $button-clear-padding;
    width: auto;
    border: none;
    background: none;
  }

  &.button-clear {
    @include transition(opacity .1s);
    padding: $button-clear-padding;
    border: none;
    background: none;
    box-shadow: none;

    &:active, &.active {
      opacity: 0.3;
    }
  }

  &.button-default {
    @include button-style($button-default-bg, $button-default-border, $button-default-active-bg, $button-default-active-border, $gray-dark);
    @include button-clear($button-default-border);
    @include button-outline($button-default-border, $gray-dark);
  }
  &.button-secondary {
    @include button-style($button-secondary-bg, $button-secondary-border, $button-secondary-active-bg, $button-secondary-active-border, $gray-dark);
    @include button-clear($button-secondary-border);
    @include button-outline($button-secondary-border, $gray-dark);
  }
  &.button-primary {
    @include button-style($button-primary-bg, $button-primary-border, $button-primary-active-bg, $button-primary-active-border, $white);
    @include button-clear($button-primary-bg);
    @include button-outline($button-primary-bg);
  }
  &.button-info {
    @include button-style($button-info-bg, $button-info-border, $button-info-active-bg, $button-info-active-border, $white);
    @include button-clear($button-info-bg);
    @include button-outline($button-info-bg);
  }
  &.button-success {
    @include button-style($button-success-bg, $button-success-border, $button-success-active-bg, $button-success-active-border, $white);
    @include button-clear($button-success-bg);
    @include button-outline($button-success-bg);
  }
  &.button-warning {
    @include button-style($button-warning-bg, $button-warning-border, $button-warning-active-bg, $button-warning-active-border, $white);
    @include button-clear($button-warning-bg);
    @include button-outline($button-warning-bg);
  }
  &.button-danger {
    @include button-style($button-danger-bg, $button-danger-border, $button-danger-active-bg, $button-danger-active-border, $white);
    @include button-clear($button-danger-bg);
    @include button-outline($button-danger-bg);
  }
  &.button-dark {
    @include button-style($button-dark-bg, $button-dark-border, $button-dark-active-bg, $button-dark-active-border, $white);
    @include button-clear($button-dark-bg);
    @include button-outline($button-dark-bg);
  }

  &.button-outline {
    @include transition(opacity .1s);
    background: none;
    box-shadow: none; 
  }

  &.button-icon {
    border: none;
    background: none;
    &:active, &.active {
      background: none;
      box-shadow: none;
      text-shadow: 0px 0px 10px #fff;
    }
  }

}

a.button {
  text-decoration: none;
}

.margin.button,
.margin .button,
.padding .button {
  border-right-width: $button-border-width;
  border-left-width: $button-border-width;
  border-radius: $button-border-radius;
}