body {
  background-color: #0b0c2a;
  color: #f0f8ff;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

header {
  text-align: center;
  padding: 30px 15px;
  background-color: #1a1b3a;
  color: #ffcc00;
}

h1 {
  margin-bottom: 10px;
  font-size: 2.5em;
}

.orbit-container {
  position: relative;
  height: 300px;
  margin: 40px auto;
  width: 300px;
}

.orbit {
  position: absolute;
  border: 1px dotted #888;
  border-radius: 50%;
  animation: rotate 20s linear infinite;
}

.sun {
  background: radial-gradient(circle, #ffcc00, #ff9900);
  width: 30px;
  height: 30px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: none;
}

.mercury {
  width: 60px;
  height: 60px;
  top: 120px;
  left: 120px;
}

.venus {
  width: 90px;
  height: 90px;
  top: 105px;
  left: 105px;
  animation-duration: 25s;
}

.earth {
  width: 120px;
  height: 120px;
  top: 90px;
  left: 90px;
  animation-duration: 30s;
}

.mars {
  width: 150px;
  height: 150px;
  top: 75px;
  left: 75px;
  animation-duration: 35s;
}

.content-section {
  max-width: 800px;
  margin: 30px auto;
  padding: 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.content-section h2 {
  color: #ff9900;
}