body {
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at center, #111,#000);
  color: white;
  text-align: center;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background: #222;
  padding: 2rem;
  border-radius: 1.5rem;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  width: 300px;
}

input {
  width: 100%;
  padding: 0.7rem;
  margin: 1rem 0;
  border-radius: 8px;
  border: none;
  outline: none;
  text-align: center;
}

button {
  background: #4f46e5;
  color: white;
  border: none;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #6366f1;
}

#answerBox {
  margin-top: 1rem;
  padding: 1rem;
  background: #333;
  border-radius: 10px;
  font-size: 1.2rem;
  min-height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
}