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

body {
  background-color: #000;
  color: white;
  font-family: Arial, sans-serif;
  text-align: center;
  min-height: 100vh;
}

header {
  background-color: #444;
  padding: 15px 0;
  display: flex;
  justify-content: center;
  gap: 40px;
  font-size: 18px;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
}

header nav {
  display: flex;
  justify-content: center;
  gap: 40px;
  align-items: center;
  height: 100%;
}


header a {
  color: white;
  text-decoration: none;
  transition: text-shadow 0.4s ease-in-out, color 0.4s ease-in-out;
}

header a:hover {
  text-shadow: 0 0 8px white, 0 0 16px white;
  color: white;
}