body {
  font-family: Arial, sans-serif;
  background: #f7f9fc;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: white;
  padding: 20px 30px;
  border-radius: 12px;
  box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
  width: 320px;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-top: 10px;
  text-align: left;
}

input {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

button {
  margin-top: 15px;
  padding: 10px;
  width: 100%;
  border: none;
  background: #007bff;
  color: white;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

.result {
  margin-top: 20px;
  font-weight: bold;
}