body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  font-family: Arial, sans-serif;
  color: #39FF14;
  background-color: #0a0e17;
}

header, main {
  width: 100%;
  max-width: 700px;
  padding: 20px;
  box-sizing: border-box;
}

section {
  margin-bottom: 30px;
}

a {
  color: #39FF14;
  text-decoration: none;
}

h1 {
  margin-bottom: 0;
}
a:hover {
text-decoration: underline;
}
h2 {
  margin-bottom: 10px;
}

p {
  margin: 5px 0;
}