body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f0f4f8;
  padding: 30px;
  color: #333;
}

.container {
  background: #fff;
  max-width: 800px;
  margin: auto;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgb(0 0 0 / 0.1);
}

input, textarea {
  width: 100%;
  margin: 10px 0;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 1rem;
  box-sizing: border-box;
}

button {
  background-color: #0066ff;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 7px;
  font-size: 1.1rem;
  cursor: pointer;
  margin-top: 15px;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #004bb5;
}

.output {
  margin-top: 30px;
  background: #e7f0ff;
  border-left: 6px solid #0066ff;
  padding: 20px;
  font-family: 'Courier New', Courier, monospace;
  white-space: pre-wrap;
  user-select: text;
}
