body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
  text-align: center;
}

.container {
  padding: 20px;
  max-width: 800px;
  margin: auto;
  background: white;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  margin-top: 30px;
}

.logo {
  width: 100px;
  margin-bottom: 10px;
}

input[type="text"] {
  padding: 10px;
  width: 60%;
  margin: 10px 0;
  font-size: 16px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
}

#result {
  margin-top: 20px;
  text-align: left;
}

.subject {
  padding: 5px 0;
  border-bottom: 1px solid #ddd;
}