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

html, body {
  height: 100%;
  overflow: hidden;
  background: #05060f;
  font-family: system-ui, -apple-system, sans-serif;
}

#scene {
  display: block;
  width: 100vw;
  height: 100vh;
  cursor: grab;
}
#scene.dragging { cursor: grabbing; }

#controls {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: rgba(15, 20, 40, 0.85);
  border: 1px solid rgba(120, 180, 255, 0.25);
  border-radius: 999px;
  color: #cdd6f4;
  font-size: 14px;
}
#speed { width: 220px; }
#speed-label {
  min-width: 56px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

#panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  height: 100%;
  padding: 28px 24px;
  background: rgba(12, 16, 34, 0.95);
  border-left: 1px solid rgba(120, 180, 255, 0.3);
  color: #cdd6f4;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
#panel.open { transform: translateX(0); }
#panel h2 { color: #fff; margin-bottom: 16px; }
#panel dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  font-size: 14px;
}
#panel dt { opacity: 0.65; }
#panel .desc {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.85;
}
#panel-close {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 10px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  color: #cdd6f4;
  cursor: pointer;
}
#panel-close:hover { border-color: rgba(255, 255, 255, 0.7); }