body {
  font-family: "Segoe UI", sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
  text-align: center;
}

.container {
  max-width: 600px;
  margin: 80px auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

h1 {
  color: #222;
}

p {
  color: #555;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  margin-top: 20px;
  background-color: #0078D7;
  border: none;
  border-radius: 5px;
  color: white;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background-color: #005cbf;
}

.nav {
  margin-top: 30px;
}

.nav a {
  text-decoration: none;
  color: #0078D7;
  font-weight: bold;
}

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