/* Black Hole Simulation Styles */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: #000;
  overflow: hidden;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #fff;
}

#gpu-canvas {
  display: block;
  width: 100vw;
  height: 100vh;
  cursor: grab;
}

#gpu-canvas:active {
  cursor: grabbing;
}

/* Loading Screen */
.loading {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  text-align: center;
  z-index: 1000;
}

.loader {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top: 3px solid #fff;
  border-radius: 50%;
  margin: 20px auto;
  animation: spin 1s linear infinite;
}

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

  100% {
    transform: rotate(360deg);
  }
}

/* Error Display */
.error {
  color: #ff4444;
  background: rgba(0, 0, 0, 0.9);
  padding: 20px;
  border-radius: 8px;
  max-width: 600px;
  border: 1px solid #ff4444;
}

.error ul {
  text-align: left;
  margin: 15px 0;
}

.error li {
  margin: 5px 0;
}

.error code {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: monospace;
}