*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0a0a0a;
  color: #fafafa;
  overflow: hidden;
}

#canvas {
  position: fixed;
  inset: 0;
  cursor: crosshair;
}

#hud {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  pointer-events: none;
  z-index: 10;
}

#hint {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.04em;
  text-align: center;
}

#resetBtn {
  pointer-events: all;
  padding: 0.45rem 1.5rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  transition: background 0.2s, border-color 0.2s;
}

#resetBtn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.4);
}