body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: linear-gradient(135deg, #eef3ff, #f7fcff);
  color: #333;
}

header {
  background: linear-gradient(90deg, #0a3d62, #1e90ff);
  color: white;
  padding: 30px 15px;
  text-align: center;
}

nav {
  background: #ffffff;
  padding: 12px;
  text-align: center;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: #0a3d62;
  font-weight: bold;
}

nav a:hover {
  color: #1e90ff;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 30px 20px;
}

.card {
  background: #ffffff;
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.card h2 {
  color: #0a3d62;
}

.button {
  display: inline-block;
  margin-top: 10px;
  background: #0a3d62;
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
}

.button:hover {
  background: #062c46;
}

footer {
  background: #062c46;
  color: white;
  text-align: center;
  padding: 15px;
}