/* ===== PAIR LOGIC ===== */
.pl-hints {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.pl-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 10px 16px;
  font-size: 1rem;
}

.pl-hint-item {
  font-size: 1.5rem;
}

.pl-hint-op {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}

.pl-instruction {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.pl-slots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}

.pl-slot {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border: 2px dashed rgba(255,255,255,0.2);
  border-radius: 12px;
  font-size: 0.9rem;
  color: var(--muted);
  transition: all 0.2s;
}

.pl-slot.pl-filled {
  border-style: solid;
  border-color: var(--primary);
  background: rgba(139, 92, 246, 0.15);
  font-size: 1.6rem;
  color: #fff;
  animation: plPop 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.pl-slot.pl-slot-correct {
  border-color: var(--accent);
  background: rgba(16, 185, 129, 0.25);
}

.pl-slot.pl-slot-wrong {
  border-color: #f43f5e;
  background: rgba(244, 63, 94, 0.25);
  animation: plShake 0.3s;
}

@keyframes plPop {
  0%   { transform: scale(0.7); }
  60%  { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes plShake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-5px); }
  75%      { transform: translateX(5px); }
}

.pl-items {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pl-item-btn {
  width: 56px;
  height: 56px;
  font-size: 1.8rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pl-item-btn:hover {
  background: rgba(255,255,255,0.15);
  transform: scale(1.1);
  border-color: var(--primary);
}

.pl-item-btn.pl-used {
  opacity: 0.25;
  pointer-events: none;
  transform: scale(0.85);
}