html, body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #1a1a1a;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

canvas {
  display: block;
  width: 100%;
  height: 100vh;
}

/* Ladebildschirm */
#loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  font-size: 16px;
}

.spinner {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border: 4px solid rgba(217, 78, 31, 0.3);
  border-top: 4px solid rgb(217, 78, 31);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Fehlermeldung */
#error {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 50, 50, 0.9);
  color: white;
  padding: 20px 30px;
  border-radius: 8px;
  max-width: 500px;
  text-align: center;
}

/* Info-Anzeige */
#info {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: rgba(255, 255, 255, 0.9);
  padding: 10px 15px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  pointer-events: none;
  display: none;
  line-height: 1.6;
}

#info.visible {
  display: block;
}

#info .controls {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
}