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

body {
  background: #1a1a2e;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: 'Courier New', monospace;
  overflow: hidden;
}

#game-container {
  position: relative;
  border: 4px solid #4a4a6a;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(0, 200, 255, 0.3);
}

#game {
  display: block;
  background: linear-gradient(to bottom, #16213e 0%, #1a1a2e 100%);
}

#ui {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  color: #fff;
  font-size: 18px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
  pointer-events: none;
}

#ui div {
  background: rgba(0, 0, 0, 0.5);
  padding: 8px 12px;
  border-radius: 4px;
  border: 2px solid #4a4a6a;
  backdrop-filter: blur(4px);
}

#controls-hint {
  position: absolute;
  bottom: -35px;
  left: 50%;
  transform: translateX(-50%);
  color: #888;
  font-size: 12px;
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 12px;
  border-radius: 4px;
  pointer-events: none;
  white-space: nowrap;
}

#pause-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: 2px solid #4a4a6a;
  padding: 8px 16px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

#pause-btn:hover {
  background: rgba(74, 74, 106, 0.8);
  border-color: #6a6a8a;
}