.pattern-layout {
  display: grid;
  grid-template-columns: minmax(250px, 330px) minmax(0, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}

.pattern-panel,
.pattern-stage {
  padding: 18px;
}

.pattern-panel {
  display: grid;
  align-content: start;
  gap: 16px;
}

.hint {
  margin: 0;
  color: #405363;
  font-size: 1.05rem;
  font-weight: 850;
  line-height: 1.55;
}

.pattern-stage {
  display: grid;
  align-content: center;
  gap: 24px;
  min-height: 560px;
  background: linear-gradient(160deg, rgba(216, 205, 249, 0.86), rgba(255, 253, 245, 0.94));
}

.sequence-row,
.option-grid {
  display: grid;
  gap: 12px;
}

.sequence-row {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.option-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.pattern-card,
.option-card {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  min-width: 0;
  border: 4px solid rgba(255, 255, 255, 0.78);
  border-radius: 24px;
  background: var(--card-color, #fffdf5);
  color: #263238;
  font-size: clamp(1.8rem, 6vw, 3.5rem);
  font-weight: 950;
  box-shadow: 0 14px 26px rgba(71, 85, 105, 0.14);
}

.pattern-card.is-missing {
  border-style: dashed;
  background: rgba(255, 255, 255, 0.58);
  color: #607282;
}

.option-card {
  cursor: pointer;
  transition: transform 160ms ease, outline 160ms ease;
}

.option-card:active {
  transform: scale(0.96);
}

.option-card.is-correct {
  outline: 6px solid rgba(117, 199, 162, 0.58);
}

.option-card.is-wrong {
  outline: 6px solid rgba(217, 121, 159, 0.5);
}

@media (max-width: 820px) {
  .pattern-layout {
    grid-template-columns: 1fr;
  }

  .pattern-stage {
    min-height: auto;
  }

  .sequence-row {
    gap: 8px;
  }

  .option-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pattern-card,
  .option-card {
    border-radius: 18px;
  }
}