* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  line-height: 1.6;
  background: #0f172a;
  color: #e2e8f0;
}

header {
  height: 200px;
  padding: 20px;
  text-align: center;
  background: #020617;
}

header h1 {
  font-size: 5rem;
}

footer {
  text-align: center;
  padding: 20px;
  background: #020617;
  border-top-style: solid;
  border-color: #1e293b;
}