body {
  font-family: "Segoe UI", Roboto, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f9fafb;
  color: #222;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: #0a2540;
  color: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 1rem;
  font-weight: 500;
}

nav a:hover {
  text-decoration: underline;
}

main {
  flex: 1;
  padding: 2rem;
  max-width: 800px;
  margin: auto;
}

h2 {
  color: #0a2540;
}

.button {
  display: inline-block;
  background-color: #0077cc;
  color: white;
  padding: 0.7rem 1.2rem;
  text-decoration: none;
  border-radius: 6px;
  margin-top: 1rem;
}

.button:hover {
  background-color: #005fa3;
}

footer {
  background-color: #f1f1f1;
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
}