HBM/md-components

.Stepper {
  display: flex;
  flex-flow: column wrap;
}

.Stepper-step-back {
  display: none;
}

$no-steps: 10;

// -- vertical --
// titles
@for $i from 1 through $no-steps {
  .Stepper > .Stepper-title:nth-of-type(#{$i}) {
    order: #{$i * 2 - 1};
  }
}

// steps
@for $i from 1 through $no-steps {
  .Stepper > .Stepper-step:nth-of-type(#{$i}) {
    order: #{$i * 2};
  }
}

// -- horizontal --
@include medium {
  .Stepper--horizontal {
    flex-direction: row;
    padding: 0 24px;
  }

  .Stepper--horizontal .Stepper-circle {
    margin: 0 8px;
  }

  .Stepper--horizontal .Stepper-title {
    height: 72px;
  }

  .Stepper--horizontal .Stepper-title:last-of-type {
    flex: 0;
  }

  .Stepper--horizontal > .Stepper-title .Stepper-line-wrapper {
    flex: 1;
    margin-left: 8px;
  }

  .Stepper--horizontal > .Stepper-step .Stepper-line-wrapper,
  .Stepper--horizontal .Stepper-title:last-of-type .Stepper-line-wrapper {
    display: none;
  }

  .Stepper--horizontal > .Stepper-title .Stepper-line {
    height: 1px;
    width: 100%;
  }

  .Stepper--horizontal > .Stepper-step > .Stepper-body {
    min-height: 0;
  }

  // titles
  @for $i from 1 through $no-steps {
    .Stepper--horizontal > .Stepper-title:nth-of-type(#{$i}) {
      order: #{$i};
    }
  }

  // steps
  @for $i from 1 through $no-steps {
    .Stepper--horizontal > .Stepper-step:nth-of-type(#{$i}) {
      order: $no-steps + 1;
    }
  }

  .Stepper-footer {
    justify-content: flex-end;
  }

  .Stepper-step-back {
    display: flex;
    align-self: flex-start;
    flex: 1;
  }

  .Stepper-step-next,
  .Stepper-step-cancel {
    align-self: flex-end;
  }
}

.Stepper-line-wrapper {
  display: flex;
  justify-content: center;
  width: 24px;
}

.Stepper-circle-wrapper > .Stepper-circle ~ .Stepper-line-wrapper {
  display: none;
}

.Stepper-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-right: 12px;
}

.Stepper-circle:not(.Stepper--error) {
  border-radius: 50%;
  background-color: #bdbdbd;
  color: #fff;
}

.Stepper--error > .Stepper-title-text,
.Stepper--error > .Stepper-step-optional {
  color: #f44336;
}

.Stepper--error svg {
  fill: #f44336;
}

.Stepper-links {
  display: flex;
  flex-direction: row;
}

.Stepper-step {
  flex-basis: 100%;
}

.Stepper-title {
  height: 40px;
  display: flex;
  align-items: center;
  text-decoration: none;
  color: #bdbdbd;
  flex: 1;
  white-space: nowrap;
}

.Stepper-title.is-active {
  color: #000;
}

.Stepper-title.is-active > .Stepper-circle-wrapper > .Stepper-circle:not(.Stepper--error) {
  background-color: #2196f3;
  color: #fff;
}

.Stepper-body {
  display: flex;
  min-height: 24px;
}

.Stepper-body.is-last {
  min-height: 0;
}

.Stepper-line {
  width: 1px;
  background-color: #bdbdbd;
}

.Stepper-content-wrapper {
  flex: 1;
}

.Stepper-content {
  margin-left: 12px;
}

.Stepper-footer {
  display: flex;
  margin-top: 16px;
  // button has outer margin of 4
  padding-left: 8px;
}

.Stepper-title.is-active > .Stepper-title-text-wrapper:not(.Stepper--error) > .Stepper-step-optional {
  font-size: 12px;
  color: rgba(0, 0, 0, 0.54);
}