body {
  font-family: Arial, sans-serif;
  background-color: #000;
  color: #fff;
  margin: 0;
  padding: 0;
}

header {
  background-color: #1a1a1a;
  padding: 20px;
  text-align: center;
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
  position: relative;
  z-index: 2;
}

header h1 {
  margin: 0;
  font-size: 36px;
  text-transform: uppercase;
  color: #ffffff;
  animation: neon-header 2s ease infinite alternate;
}

@keyframes neon-header {
  from {
    text-shadow: 0 0 10px #00ffff, 0 0 20px #00ffff, 0 0 30px #00ffff,
      0 0 40px #00ffff;
  }
  to {
    text-shadow: 0 0 20px #00ffff, 0 0 30px #00ffff, 0 0 40px #00ffff,
      0 0 50px #00ffff;
  }
}

nav ul {
  list-style-type: none;
  padding: 0;
  display: flex;
  justify-content: center;
}

nav ul li {
  margin: 0 15px;
}

nav a {
  text-decoration: none;
  color: #00ffff;
  font-weight: bold;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #ff00ff;
}

main {
  padding: 20px;
}

article {
  margin-bottom: 30px;
  border: 1px solid #00ffff;
  padding: 20px;
  box-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
  border-radius: 5px;
}

article h2 {
  color: #00ffff;
}

footer {
  text-align: center;
  padding: 10px;
  background-color: #1a1a1a;
}