body {
  font-family: Arial;
  margin: 0;
  background: #f5f5f5;
}

.navbar {
  background: #000;
  padding: 15px;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.navbar a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

.navbar a:hover {
  color: #00ffcc;
}

.container {
  max-width: 600px;
  margin: 40px auto;
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
  margin-bottom: 15px;
}

h2 {
  margin-top: 25px;
}