body {
  background: #111;
  color: #eee;
  font-family: sans-serif;
  text-align: center;
  margin: 0;
  padding: 20px;
}

.simulation-container {
  max-width: 800px;
  margin: 0 auto;
}

canvas {
  background: #000;
  border: 1px solid #555;
  display: block;
  margin: 10px auto;
  width: 100%;
}

#mapCanvas {
  height: 400px;
}

#orbitCanvas {
  height: 400px;
}

.controls {
  background: #222;
  padding: 15px;
  border-radius: 8px;
  margin: 15px 0;
}

.controls label {
  display: block;
  margin: 15px 0;
}

.long-slider {
  width: 100%;
  margin: 5px 0;
}

.speed-slider {
  background: linear-gradient(to right, #000, #f00);
}

button {
  background: #0af;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  margin: 10px 5px;
}

button:hover {
  background: #08c;
}

input[type="checkbox"] {
  margin-right: 10px;
  vertical-align: middle;
}

h1, h2 {
  color: #0af;
  margin: 10px 0;
}

h2 {
  font-size: 1.2em;
  margin-top: 20px;
}

.orbit-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 10px 0;
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
  margin-right: 10px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
}

input:checked + .slider {
  background-color: #0af;
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}