.migration-responsibility {
  width: 100%;
  max-width: 900px;
  margin: 1.5rem auto 2rem;
  color: var(--ink);
  background: transparent;
}

.migration-lanes {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.25rem minmax(0, 1fr);
  gap: 1rem;
}

.migration-lane {
  min-width: 0;
}

.migration-lane .migration-lane-title {
  margin: 0;
  padding-bottom: .75rem;
  border-bottom: 3px solid var(--ink);
  color: var(--ink);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
}

.migration-reviewer .migration-lane-title {
  border-bottom-color: var(--heading);
}

.migration-lane-subtitle {
  display: block;
  margin-top: .2rem;
  color: var(--muted);
  font-size: .8125rem;
  font-weight: 400;
}

.migration-steps {
  margin: 1.375rem 0;
  padding: 0;
  list-style: none;
}

.migration-steps .migration-step {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr);
  gap: .625rem;
  margin: 0 0 1.375rem;
  line-height: 1.5;
}

.migration-step-number {
  padding-top: .15rem;
  color: var(--muted);
  font-size: .8125rem;
  font-variant-numeric: tabular-nums;
}

.migration-step-copy {
  overflow-wrap: anywhere;
}

.migration-step-detail {
  display: block;
  margin-top: .2rem;
  color: var(--muted);
  font-size: .8125rem;
  line-height: 1.5;
}

.migration-output {
  padding-top: .75rem;
  border-top: 1px solid var(--line);
  font-size: .875rem;
}

.migration-output-label {
  margin: 0 0 .5rem;
  color: var(--muted);
  font-size: .8125rem;
  font-weight: 400;
}

.migration-documents {
  margin: 0;
  padding: 0;
  list-style: none;
}

.migration-documents .migration-document {
  margin: .5rem 0;
  line-height: 1.5;
}

.migration-transfer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--muted);
}

.migration-transfer::before,
.migration-transfer::after {
  content: '';
  flex: 1;
  border-left: 1px dashed var(--line);
}

.migration-transfer span {
  padding: .625rem 0;
  font-size: 1.625rem;
  line-height: 1;
}

.migration-validation {
  margin: 1.375rem 0 0;
  padding: .8125rem 0;
  border-top: 1px solid var(--line);
  color: var(--heading);
  font-size: .9375rem;
  font-weight: 600;
}

.migration-caption {
  margin-top: 1.125rem;
  padding-top: .875rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .8125rem;
  line-height: 1.6;
}

@media (max-width: 540px) {
  .migration-lanes {
    grid-template-columns: minmax(0, 1fr);
    gap: .75rem;
  }

  .migration-lane .migration-lane-title {
    padding-bottom: .5rem;
  }

  .migration-steps {
    margin: .875rem 0;
  }

  .migration-steps .migration-step {
    margin-bottom: .875rem;
  }

  .migration-transfer {
    height: 1.5rem;
    flex-direction: row;
  }

  .migration-transfer::before,
  .migration-transfer::after {
    border-left: 0;
    border-top: 1px dashed var(--line);
  }

  .migration-transfer span {
    padding: 0 .75rem;
    transform: rotate(90deg);
  }

  .migration-validation {
    margin-top: .625rem;
  }
}