* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  text-align: center;
  max-width: 500px;
}

h1 {
  color: #333;
  margin-bottom: 15px;
}

p {
  color: #666;
  margin-bottom: 20px;
}

button {
  background: #667eea;
  color: white;
  border: none;
  padding: 12px 30px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
  transition: background 0.3s;
}

button:hover {
  background: #764ba2;
}

#message {
  margin-top: 20px;
  font-weight: bold;
  color: #333;
}