.lo-board {
  display: grid;
  grid-template-columns: repeat(var(--lo-n, 5), 1fr);
  gap: 6px;
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
}
.lo-cell {
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: #08111f;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.1s ease, transform 0.06s ease;
}
.lo-cell--on {
  background: radial-gradient(circle at 40% 30%, #ffe066, #f0a91c);
  box-shadow: 0 0 12px rgba(255, 214, 102, 0.5);
}
.lo-cell:active { transform: scale(0.95); }
.lo-cell--hint {
  outline: 3px solid #ffb347;
  outline-offset: -3px;
  animation: lo-hint 0.8s ease-in-out infinite;
}
@keyframes lo-hint {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 179, 71, 0.5); }
  50% { box-shadow: 0 0 14px 3px rgba(255, 179, 71, 0.7); }
}