body {
  font-family: Arial, sans-serif;
  background-color: #f4f6f8;
  margin: 0;
  padding: 40px;
}

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

form {
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: bold;
}

input[type="text"],
input[type="submit"] {
  width: 100%;
  box-sizing: border-box;
  padding: 12px;
  margin-bottom: 16px;
  border-radius: 4px;
}

input[type="text"] {
  border: 1px solid #ccc;
}

input[type="submit"] {
  background-color: #007bff;
  border: none;
  color: white;
  font-size: 16px;
  cursor: pointer;
}

input[type="submit"]:hover {
  background-color: #0056b3;
}

.navbar {
  background-color: #007bff;
  padding: 10px 20px;
  display: flex;
  justify-content: flex-start;
}

.navbar a {
  color: white;
  text-decoration: none;
  margin-right: 20px;
  font-weight: bold;
}

.navbar a:hover {
  text-decoration: underline;
}

pre {
  background: #f0f0f0;
  padding: 15px;
  border-radius: 6px;
  max-height: 600px;
  overflow-y: scroll;
  font-family: monospace;
  white-space: pre-wrap;
}

p a {
  color: #007bff;
  text-decoration: none;
  font-weight: bold;
}

p a:hover {
  text-decoration: underline;
}