* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a0d12;
}
canvas {
  display: block;
  width: 100%;
  height: 100%;
}
#info {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(10, 13, 18, 0.95);
  border: 1px solid rgba(100, 140, 180, 0.3);
  border-radius: 8px;
  padding: 2rem;
  max-width: 500px;
  color: #c8d4e0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  z-index: 100;
}
#info h1 {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: 0.25rem;
  color: #e8f0f8;
}
#info .subtitle {
  font-size: 0.875rem;
  color: #7a9bb8;
  margin-bottom: 1rem;
  font-style: italic;
}
#info .description {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  color: #a8b8c8;
}
#info .source {
  font-size: 0.75rem;
  color: #6a8098;
  margin-bottom: 1rem;
  font-style: italic;
}
#info .controls-hint {
  font-size: 0.7rem;
  color: #5a7088;
  border-top: 1px solid rgba(100, 140, 180, 0.2);
  padding-top: 0.75rem;
  margin-bottom: 0.5rem;
}
#info .credit {
  font-size: 0.7rem;
  text-align: right;
}
#info .credit a {
  color: #7a9bb8;
  text-decoration: none;
}
#controls {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  z-index: 50;
}
#controls button {
  background: rgba(20, 30, 45, 0.8);
  border: 1px solid rgba(100, 140, 180, 0.3);
  color: #8aa8c0;
  width: 32px;
  height: 32px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
#controls button:hover {
  background: rgba(40, 60, 90, 0.8);
  border-color: rgba(100, 140, 180, 0.5);
}