/* Global Styles */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-image: url('stars.jpg');
  background-size: cover;
  background-repeat: no-repeat;
  color: white;
}

/* Header Styles */
header {
  background-color: rgba(0, 0, 0, 0.5);
  padding: 20px;
  text-align: center;
}

header h2 {
  margin: 0;
}

/* Navigation Styles */
nav {
  background-color: #1abc9c;
  width: 30%;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  padding: 20px;
  box-sizing: border-box;
}

nav ul {
  list-style-type: none;
  padding: 0;
}

nav a {
  display: block;
  color: white;
  text-decoration: none;
  padding: 10px 0;
}

nav a:hover {
  background-color: #16a085;
}

/* Main Content Styles */
.main-content {
  width: 70%;
  margin-left: 30%;
  padding: 20px;
  box-sizing: border-box;
}

.space {
  background-color: rgba(255, 255, 255, 0.8);
  padding: 20px;
  margin-bottom: 20px;
  color: #333;
}

.space h1, .space h3 {
  margin-top: 0;
}

/* Footer Styles */
footer {
  background-color: #0d3a58;
  color: white;
  text-align: center;
  padding: 20px;
}