body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f4f6f8;
  color: #222;
  margin: 0;
  padding: 0;
}

header {
  background-color: #1f2a44;
  color: white;
  text-align: center;
  padding: 25px;
}

main {
  max-width: 700px;
  margin: 30px auto;
  background-color: white;
  padding: 25px;
  border: 1px solid #ccc;
}

h2 {
  color: #1f2a44;
}

section + section {
  margin-top: 30px;
  padding-top: 25px;
  border-top: 1px solid #ddd;
}

.pdf-text p {
  line-height: 1.6;
}

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

input {
  padding: 8px;
  font-size: 16px;
}

button {
  width: 150px;
  padding: 10px;
  background-color: #1f2a44;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background-color: #334466;
}

#errorMessage {
  color: red;
  font-weight: bold;
}

#result {
  color: green;
  font-weight: bold;
}