body {
  margin: 0;
  font-family: system-ui, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #f9f9f9;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
}

header {
  background: #1a1a1a;
  color: #fff;
  padding: 0.5rem 0;
}

header .logo {
  margin: 0;
  font-size: 1.4rem;
}

nav {
  float: right;
}

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

.hero {
  background: linear-gradient(135deg, #004466, #0088aa);
  color: #fff;
  text-align: center;
  padding: 4rem 1rem;
}

.hero h2 {
  margin: 0 0 1rem;
  font-size: 2rem;
}

.content {
  background: #fff;
  margin: 2rem 0;
  padding: 2rem 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.content.alt {
  background: #eef6fa;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #1a1a1a;
  color: #fff;
  margin-top: 2rem;
}