body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #f5f8fa;
  color: #222831;
  margin: 0;
  padding: 0;
}
nav {
  background-color: #30475e;
  padding: 1em 0;
  text-align: center;
}
nav a {
  color: #f05454;
  text-decoration: none;
  margin: 0 1.5em;
  font-weight: bold;
  transition: color 0.2s;
}
nav a:hover {
  color: #222831;
}
h1, h2 {
  font-family: 'Montserrat', Arial, sans-serif;
}
.page-container {
  max-width: 800px;
  margin: 2em auto;
  padding: 1.5em;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}