body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #fce4ec;
  color: #333;
}

.container {
  max-width: 500px;
  margin: 50px auto;
  padding: 20px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

input {
  padding: 10px;
  margin: 10px;
  width: 80%;
  border: 1px solid #ccc;
  border-radius: 8px;
}

button {
  padding: 10px 20px;
  background: #e91e63;
  border: none;
  color: white;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background: #c2185b;
}

.result {
  margin-top: 20px;
  font-size: 18px;
}

.card {
  background: #fff3f8;
  padding: 15px;
  border-radius: 10px;
  margin-top: 15px;
  border: 1px solid #f8bbd0;
}

.error {
  color: red;
  font-weight: bold;
}