/* Stepper: an ordered list of steps as one surface panel, three columns split
   by subtle rules on wide screens and one column on narrow ones. A CSS counter
   draws each step's number in an accent disc; the text reads in
   text-secondary. Contrast: on-accent on accent 8.65 light, 6.22 dark;
   text-secondary on bg-surface 8.63 light, 8.56 dark. */

.stepper {
  display: grid;
  padding: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  background-color: var(--bg-surface);
  list-style: none;
  counter-reset: stepper;
}

.stepper > li {
  display: flex;
  gap: var(--space-s);
  align-items: flex-start;
  padding: var(--space-m);
  color: var(--text-secondary);
  counter-increment: stepper;
}

.stepper > li + li {
  border-block-start: 1px solid var(--border-subtle);
}

.stepper > li::before {
  content: counter(stepper);
  display: flex;
  flex: none;
  align-items: center;
  justify-content: center;
  inline-size: 2.25rem;
  block-size: 2.25rem;
  border-radius: var(--radius-pill);
  background-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

@media (min-width: 880px) {
  .stepper {
    grid-template-columns: repeat(3, 1fr);
  }

  .stepper > li + li {
    border-block-start: 0;
    border-inline-start: 1px solid var(--border-subtle);
  }
}