/* Lights Out — page-specific styles */

.lo-board {
  display: flex;
  justify-content: center;
}

.lo-grid {
  display: grid;
  grid-template-columns: repeat(var(--lo-size, 3), 1fr);
  gap: 0.6rem;
  width: min(100%, 24rem);
  padding: 0.9rem;
  background: #2b3a44;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.lo-light {
  aspect-ratio: 1;
  border: none;
  border-radius: var(--radius-sm);
  background: #3d4f5b;
  box-shadow: inset 0 -4px 8px rgba(0, 0, 0, 0.3);
  font-size: clamp(1.25rem, 6vw, 2rem);
  line-height: 1;
  cursor: pointer;
  transition: background 0.18s, box-shadow 0.18s, transform 0.1s;
}

.lo-light:hover:not(:disabled) { transform: scale(1.04); }
.lo-light:active:not(:disabled) { transform: scale(0.96); }

.lo-light:focus-visible {
  outline: 3px solid var(--color-coral);
  outline-offset: 2px;
}

.lo-light.is-on {
  background: radial-gradient(circle at 40% 32%, #fff3b0, var(--color-sun) 55%, #e8b91d);
  box-shadow: 0 0 18px rgba(255, 214, 45, 0.6), inset 0 -4px 8px rgba(0, 0, 0, 0.15);
}

.lo-light.is-hint {
  outline: 3px dashed var(--color-coral);
  outline-offset: 2px;
}

.lo-light:disabled { cursor: default; }

@media (prefers-reduced-motion: reduce) {
  .lo-light { transition: none; }
}