body {
  font-family: "Segoe UI", Tahoma, sans-serif;
  max-width: 700px;
  margin: auto;
  padding: 20px;
  background: #f9f9f9;
  color: #222;
}

h2 {
  color: #006699;
  margin-bottom: 10px;
}

input[type="file"] {
  padding: 8px;
  font-size: 16px;
}

button {
  background-color: #006699;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 15px;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 10px;
}

button:hover {
  background-color: #004d66;
}

#output {
  margin-top: 20px;
  background: #fff;
  border: 1px solid #ddd;
  padding: 15px;
  border-radius: 6px;
  white-space: pre-wrap;
  font-size: 15px;
  line-height: 1.4;
}

@media (max-width: 600px) {
  body {
    padding: 10px;
  }

  button {
    width: 100%;
  }
}

#edit-result {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-top: 20px;
  resize: vertical;
}

#drop-zone {
  border: 2px dashed #006699;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  color: #555;
  margin: 20px 0;
  background-color: #f0f8ff;
  cursor: pointer;
  transition: background-color 0.2s;
}

#drop-zone.dragover {
  background-color: #cceeff;
}