:root {
  --primary: #003366;
  --accent: #ff6600;
  --background: #f4f6f9;
}

body {
  margin: 0;
  background: var(--background);
  font-family: 'Segoe UI', Arial, sans-serif;
  color: #333;
}

header {
  background: linear-gradient(90deg, var(--primary), #0055aa);
  color: white;
  text-align: center;
  padding: 40px 20px;
}

header h1 {
  margin: 0;
  font-size: 2.5em;
}

header p {
  margin-top: 10px;
  font-size: 1.2em;
}

section {
  background: white;
  margin: 20px auto;
  padding: 20px;
  max-width: 800px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

section h2 {
  color: var(--primary);
  margin-bottom: 10px;
}

section p {
  line-height: 1.6;
}

footer {
  background: var(--primary);
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

footer a {
  color: var(--accent);
  font-weight: bold;
  text-decoration: none;
}

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

@media (max-width: 600px) {
  section {
    margin: 10px;
    padding: 15px;
  }
  header, footer {
    padding: 15px;
  }
}
nav {
  background: var(--primary);
  padding: 10px;
}
nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
}
nav li {
  margin: 0 15px;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  color: var(--accent);
}