classic-ui/assets/styles/components/_steps.scss

.b-steps {
  margin-bottom: 1.25rem;

  .steps {
    + .step-content {
      display: none;
    }

    .step-items {
      .step-item {
        .step-details {
          margin-top: 1rem;

          @include until(375px) {
            word-spacing: 100px;
          }
        }

        .step-link {
          transition: color .15s ease-in-out;

          &:not(.is-clickable) {
            color: #393939;

            .step-marker {
              border-color: #393939;

              &:before {
                background-color: #393939;
              }
            }
          }
        }

        .step-marker {
          position: relative;

          &:before {
            content: "";
            display: flex;
            position: absolute;
            left: 50%;
            margin-left: calc(-1.5rem/2);
            bottom: 50%;
            margin-bottom: calc(-1.5rem/2);
            width: 1.5rem;
            height: 1.5rem;
            transition: transform 150ms ease-out;
            border-radius: 50%;
            transform: scale(0);
            background-color: $primary;
          }
        }

        &:not(:first-child) {
          &::before {
            content: none;
          }

          .step-link {
            &::before {
              content: '';
              display: block;
              position: absolute;
              background-color: $primary;
              height: .2em;
              width: 100%;
              left: -50%;
              bottom: 0;
              top: .7rem;
            }

            &:not(.is-clickable) {
              &::before {
                background-color: #393939;
              }
            }
          }
        }

        &:first-child, &:last-child {
          .step-link {
            &::after {
              content: '';
              display: block;
              position: absolute;
              background: $primary;
              height: .2em;
              width: 50%;
              bottom: 0;
              top: .7rem;
            }

            &:not(.is-clickable) {
              &::after {
                background: #393939;
              }
            }
          }
        }

        &:first-child {
          .step-link {
            &::after {
              left: 0;
            }
          }
        }

        &:last-child {
          .step-link {
            &::after {
              right: 0;
            }
          }
        }

        &.is-active {
          .step-link {
            color: $primary;

            &:not(.is-clickable) {
              color: #393939;
            }

            .step-marker {
              background-color: $primary-invert;

              &:before {
                transform: scale(0.6);
              }
            }
          }
        }

        &:not(.is-active) {
          display: block;
        }

        &::before, &::after {
          content: none;
        }
      }
    }
  }
}