/* ===== MENTAL MULTIPLICATION (掛け算暗算) ===== */

.mmut-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  gap: 1.5rem;
  animation: mmutFadeIn 0.3s ease-out;
}

#mmut-question {
  font-size: 3.5rem;
  font-weight: 800;
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--text);
  text-shadow: 0 4px 12px rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#mmut-question .op {
  color: var(--primary);
  opacity: 0.8;
  font-size: 2.5rem;
}

#mmut-question .val-a, #mmut-question .val-b {
  background: linear-gradient(135deg, var(--text) 0%, var(--text-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mmut-answer-display {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

@keyframes mmutFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Response and Numpad styling is shared with other games via common.css, 
   but specific tweaks can go here if needed. */
