* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #111;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: 'Courier New', monospace;
  color: #ffe135;
}

#game-container {
  position: relative;
}

#game-canvas {
  display: block;
  background: #000;
  border: 2px solid #ffe135;
}

#hud {
  display: flex;
  justify-content: space-between;
  padding: 8px 4px;
  font-size: 16px;
  background: #000;
  border: 2px solid #ffe135;
  border-top: none;
}

#overlay {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.85);
  z-index: 10;
}

#overlay.visible {
  display: flex;
}

#overlay h1 {
  font-size: 32px;
  margin-bottom: 16px;
}

#overlay p {
  font-size: 14px;
  margin-bottom: 24px;
  color: #ccc;
}

#overlay button {
  font-family: inherit;
  font-size: 20px;
  padding: 12px 32px;
  background: #ffe135;
  color: #111;
  border: none;
  cursor: pointer;
}

#overlay button:hover {
  background: #fff176;
}