/* Legacy page: how-it-works cards, reward track, challenge lists. */
.legacy-how {
  margin-bottom: 40px;
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.how-card {
  padding: 22px;
}
.how-card h3 {
  font-size: 1.15rem;
  color: var(--gold-300);
  margin: 6px 0 8px;
}
.how-card p {
  margin: 0;
  color: var(--muted);
}
.how-card strong {
  color: var(--cream);
}
.how-num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 900;
  color: #2a1b06 !important;
  background: var(--gold-text);
}

/* Reward track: four milestones along a 0-65 points line. */
.reward-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}
.reward {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
}
.reward-points {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--gold-100);
  background: radial-gradient(circle at 50% 35%, var(--teal-600), var(--teal-950) 75%) padding-box, var(--gold-edge) border-box;
  border: 2px solid transparent;
}
.reward-points small {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.reward-text {
  display: grid;
}
.reward-text strong {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--cream);
  line-height: 1.3;
}
.reward-text small {
  color: var(--sky);
  font-size: 0.8rem;
}

/* Challenges */
.challenge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: start;
}
.challenge {
  padding: 0;
}
.challenge summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}
.challenge summary::-webkit-details-marker {
  display: none;
}
.challenge summary::after {
  content: '';
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--gold-300);
  border-bottom: 2px solid var(--gold-300);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease-out);
  margin-left: 6px;
}
.challenge[open] summary::after {
  transform: rotate(225deg);
}
.challenge-name {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--gold-300);
  margin-right: auto;
}
.challenge-pts {
  font-size: 0.8rem;
  color: var(--sky);
}
.challenge ul {
  margin: 0;
  padding: 0 18px 16px 34px;
  columns: 2;
  column-gap: 18px;
  font-size: 0.86rem;
  color: var(--muted);
}
.challenge li {
  break-inside: avoid;
  margin-bottom: 4px;
}

@media (max-width: 1024px) {
  .reward-track,
  .challenge-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 720px) {
  .how-grid,
  .reward-track,
  .challenge-grid {
    grid-template-columns: 1fr;
  }
}