.promo-banner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
  background: var(--color-mint);
  color: #fff;
  border-radius: var(--radius-card);
  padding: clamp(1.25rem, 4vw, 2rem);
  margin-block: 2rem;
  box-shadow: var(--shadow-card);
}

@media (min-width: 640px) {
  .promo-banner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
  }
}

.promo-banner__title {
  font-family: var(--font-display);
  font-size: var(--step-h2);
  margin: 0;
}

.promo-banner__sub {
  margin: 0.25rem 0 0;
  color: #E9FBF8;
  max-width: 45ch;
}

.promo-banner__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-min);
  padding-inline: 1.25rem;
  background: #fff;
  color: var(--color-ink);
  border-radius: var(--radius-card);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.promo-banner__cta:hover {
  transform: translateY(-2px);
}