body {
  margin: 0;
  font-family: system-ui, sans-serif;
  line-height: 1.6;
  background: #f8f9fa;
  color: #222;
}

.container {
  max-width: 800px;
  margin: auto;
  padding: 2rem;
}

header {
  background: #1c1c1c;
  color: white;
  padding: 2rem 0;
  text-align: center;
}

nav {
  background: #eee;
  padding: 1rem 0;
  text-align: center;
}

nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: #333;
  font-weight: bold;
}

nav a:hover {
  color: #0077cc;
}

section {
  margin: 3rem 0;
}

footer {
  background: #ddd;
  text-align: center;
  padding: 1rem 0;
  font-size: 0.9rem;
}