body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  padding: 20px;
}

.tool-container {
  background: white;
  padding: 20px;
  max-width: 600px;
  margin: auto;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h2 {
  text-align: center;
  color: #333;
}

input, button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 10px;
  font-size: 16px;
}

#pdf-text {
  background: #eee;
  padding: 10px;
  white-space: pre-wrap;
  height: 300px;
  overflow-y: auto;
}