.nut-button {
  position: relative;
  display: flex;
  display: inline-block;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  height: $button-default-height;
  font-size: $button-default-font-size;
  font-weight: $button-default-font-weight;
  text-align: center;
  cursor: pointer;
  transition: $button-transition;
  -webkit-appearance: none;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  color: $button-default-color;
  background: $button-default-background-color;

  &-text {
    margin-left: $button-text-icon-margin;

    &.right {
      margin-right: $button-text-icon-margin;
    }
  }

  &::before {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background-color: $color-mask;
    border: inherit;
    border-color: $color-mask;
    border-radius: inherit;
    transform: translate(-50%, -50%);
    opacity: 0;
    content: ' ';
  }

  &::after {
    border: none;
  }

  &:active::before {
    opacity: 0.1;
  }

  &-wrap {
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: initial;
    .nut-icon {
      font-size: $button-default-font-size;
      width: $button-default-font-size;
      height: $button-default-font-size;
    }
  }

  &-loading,
  &-disabled {
    &::before {
      display: none;
    }
  }

  &.nut-button-icononly {
    width: $button-default-height;
    padding: 0;
  }

  &-default {
    padding: $button-default-padding;
    border: $button-border-width solid $button-default-border-color;

    &.nut-button-disabled {
      color: $button-default-disabled-color;
      background: transparent;
    }

    &.nut-button-none {
      background: transparent;

      &.nut-button-disabled {
        color: $button-default-disabled-color;
      }
    }

    &.nut-button-outline,
    &.nut-button-dashed {
      background: transparent;

      &.nut-button-disabled {
        color: $button-default-disabled-color;
        border-color: $button-default-disabled;
      }
    }
  }

  &-normal {
    padding: $button-normal-padding;
  }

  &-xlarge {
    height: $button-xlarge-height;
    padding: $button-xlarge-padding;
    font-size: $button-xlarge-font-size;
    font-weight: $button-large-font-weight;

    .nut-icon {
      font-size: $button-xlarge-font-size;
      width: $button-xlarge-font-size;
      height: $button-xlarge-font-size;
    }
  }

  &-large {
    height: $button-large-height;
    padding: $button-large-padding;
    font-size: $button-large-font-size;
    font-weight: $button-large-font-weight;

    .nut-icon {
      font-size: $button-large-font-size;
      width: $button-large-font-size;
      height: $button-large-font-size;
    }
  }

  &-small {
    height: $button-small-height;
    padding: $button-small-padding;
    font-size: $button-small-font-size;

    .nut-icon {
      font-size: $button-small-font-size;
      width: $button-small-font-size;
      height: $button-small-font-size;
    }
  }

  &-mini {
    height: $button-mini-height;
    padding: $button-mini-padding;
    font-size: $button-mini-font-size;

    .nut-icon {
      font-size: $button-mini-font-size;
      width: $button-mini-font-size;
      height: $button-mini-font-size;
    }
  }

  &-primary {
    color: $button-primary-color;
    background: $button-primary-background-color;
    background-origin: border-box;
    border: $button-border-width solid transparent;

    &.nut-button-disabled {
      background: $button-primary-disabled;
      border-color: $button-primary-disabled;
    }

    &.nut-button-none {
      background: transparent;
      color: $button-primary-border-color;

      &.nut-button-disabled {
        color: $button-primary-disabled;
      }
    }

    &.nut-button-outline {
      background: transparent;
      color: $button-primary-border-color;
      border: $button-border-width solid $button-primary-border-color;

      &.nut-button-disabled {
        color: $button-primary-disabled;
        border-color: $button-primary-disabled;
      }
    }

    &.nut-button-dashed {
      background: transparent;
      color: $button-primary-border-color;
      border: $button-border-width dashed $button-primary-border-color;

      &.nut-button-disabled {
        color: $button-primary-disabled;
        border-color: $button-primary-disabled;
      }
    }
  }

  &-success {
    color: $button-success-color;
    background: $button-success-background-color;
    background-origin: border-box;
    border: $button-border-width solid transparent;

    &.nut-button-disabled {
      background: $button-success-disabled;
      border-color: $button-success-disabled;
    }

    &.nut-button-outline,
    &.nut-button-dashed {
      color: $button-success-border-color;
      border-color: $button-success-border-color;
      background: transparent;

      &.nut-button-disabled {
        color: $button-primary-disabled;
        border-color: $button-primary-disabled;
      }
    }

    &.nut-button-none {
      color: $button-success-border-color;
    }
  }

  &-info {
    color: $button-info-color;
    background: $button-info-background-color;
    background-origin: border-box;
    border: $button-border-width solid transparent;

    &.nut-button-disabled {
      background: $button-info-disabled;
      border-color: $button-info-disabled;
    }

    &.nut-button-outline,
    &.nut-button-dashed {
      color: $button-info-border-color;
      border-color: $button-info-border-color;
      background: transparent;

      &.nut-button-disabled {
        color: $button-primary-disabled;
        border-color: $button-primary-disabled;
      }
    }

    &.nut-button-none {
      color: $button-info-border-color;
    }
  }

  &-danger {
    color: $button-danger-color;
    background: $button-danger-background-color;
    background-origin: border-box;
    border: $button-border-width solid transparent;

    &.nut-button-disabled {
      background: $button-danger-disabled;
      border-color: $button-danger-disabled;
    }

    &.nut-button-outline,
    &.nut-button-dashed {
      color: $button-danger-border-color;
      border-color: $button-danger-border-color;
      background: transparent;

      &.nut-button-disabled {
        color: $button-danger-disabled;
        border-color: $button-danger-disabled;
      }
    }

    &.nut-button-none {
      color: $button-danger-border-color;
    }
  }

  &-warning {
    color: $button-warning-color;
    background: $button-warning-background-color;
    background-origin: border-box;
    border: $button-border-width solid transparent;

    &.nut-button-disabled {
      background: $button-warning-disabled;
      border-color: $button-warning-disabled;
    }

    &.nut-button-outline,
    &.nut-button-dashed {
      color: $button-warning-border-color;
      border-color: $button-warning-border-color;
      background: transparent;

      &.nut-button-disabled {
        color: $button-warning-disabled;
        border-color: $button-warning-disabled;
      }
    }

    &.nut-button-none {
      color: $button-warning-border-color;
    }
  }

  &-block {
    display: block;
    width: 100%;
  }

  &-solid {
    color: $button-primary-color;
    background: $button-primary-background-color;
    background-origin: border-box;
    border: $button-border-width solid transparent;

    &.nut-button-disabled {
      color: $button-default-disabled-color;
      background: $button-default-disabled;
    }
  }

  &.nut-button-outline,
  &.nut-button-dashed {
    background: transparent;
  }

  &.nut-button-none {
    background: transparent;
    border-color: transparent;
    background: transparent;
  }

  &-disabled {
    cursor: not-allowed;
    color: #ffffff;
    background: $button-default-disabled;
    border-color: $button-default-disabled;
  }

  &-loading {
    cursor: default;
    opacity: 0.9;
  }

  &-round {
    border-radius: $button-border-radius;

    &.nut-button-xlarge,
    &.nut-button-large {
      border-radius: $button-large-border-radius;
    }

    &.nut-button-small {
      border-radius: $button-small-border-radius;
    }

    &.nut-button-mini {
      border-radius: $button-mini-border-radius;
    }
  }

  &-square {
    border-radius: $button-square-border-radius;
  }
}

[dir='rtl'] .nut-button,
.nut-rtl .nut-button {
  &-text {
    margin-left: 0;
    margin-right: $button-text-icon-margin;

    &.right {
      margin-left: $button-text-icon-margin;
    }
  }
  &::before {
    left: auto;
    right: 50%;
    transform: translate(50%, -50%);
  }
}