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

html, body {
  width: 100%;
  height: 100%;
}

body {
  background-color: #0d0d0d;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
  font-family: 'Arial', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#game-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

#game-container canvas {
  max-width: 100vw;
  max-height: 100vh;
  image-rendering: optimizeQuality;
}

/* Hide cursor when playing */
.game-active #game-container {
  cursor: crosshair;
}

/* Selection color */
::selection {
  background: #3498db;
  color: white;
}