:root {
  color-scheme: dark;
}

html,
body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #06060a;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

#c {
  display: block;
  width: 100vw;
  height: 100vh;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.hud-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.65);
  letter-spacing: 0.2px;
  font-size: 14px;
}

#hint {
  opacity: 0.8;
  text-align: right;
}

#message {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 12px 14px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 16px;
  backdrop-filter: blur(6px);
}

.hidden {
  display: none;
}