/* ===== 消費税計算ゲーム ===== */

.tc-stage {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  gap: 16px;
}

.tc-tax-tag {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 4px 14px;
}

.tc-question-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.tc-question-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.tc-question {
  font-size: 3rem;
  font-weight: 900;
  font-family: 'Inter', monospace;
  color: #e11d48;
  background: rgba(225, 29, 72, 0.08);
  border: 2px solid rgba(225, 29, 72, 0.25);
  border-radius: 14px;
  padding: 0.5rem 1.4rem;
  letter-spacing: 0.03em;
}

.tc-arrow-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
}

.tc-arrow-label span {
  font-size: 1.4rem;
}

.tc-answers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
  max-width: 400px;
}

.tc-answer-btn {
  background: var(--card-bg);
  color: var(--text-main);
  border: 2px solid var(--card-border);
  border-radius: 12px;
  padding: 18px 10px;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  font-family: 'Inter', monospace;
  letter-spacing: 0.03em;
}

.tc-answer-btn:hover {
  border-color: var(--primary);
  background: rgba(139, 92, 246, 0.08);
  transform: translateY(-2px);
}

.tc-answer-btn:active {
  transform: translateY(1px);
}

.tc-message {
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-muted);
  text-align: center;
  margin-top: 1rem;
}

.tc-rate-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  opacity: 0.7;
  margin-top: 4px;
}