.hint { text-align: center; color: #64748B; font-size: 0.9rem; margin-bottom: 0.75rem; }
.maze-canvas { max-width: 100%; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.15); outline: none; touch-action: none; }
.maze-canvas:focus-visible { box-shadow: 0 0 0 3px #7C3AED; }