body {
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  margin: 0;
}

.container {
  max-width: 500px;
  margin: 50px auto;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

input, select {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

button {
  padding: 12px;
  border: none;
  background: #4f46e5;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #4338ca;
}

.result {
  margin-top: 20px;
  padding: 15px;
  border-radius: 8px;
  background: #eef2ff;
  font-size: 18px;
  text-align: center;
  font-weight: bold;
}