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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #1a1a2e;
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#game-container {
  width: 100%;
  height: 100%;
  position: relative;
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

#ui-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 15px;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

#status {
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 10px 20px;
  border-radius: 25px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  font-weight: 600;
}

#player-count {
  background: rgba(0, 0, 0, 0.6);
  color: #4ECDC4;
  padding: 10px 20px;
  border-radius: 25px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  font-weight: 600;
}

/* Fullscreen prompt */
.fullscreen-prompt {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  color: white;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.fullscreen-prompt h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.fullscreen-prompt p {
  font-size: 18px;
  opacity: 0.7;
}