body {
  font-family: Arial, sans-serif;
  text-align: center;
  background-color: #f0f0f0;
  padding: 20px;
}

.container {
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #333;
}

form {
  margin: 20px 0;
}

label {
  display: block;
  margin-bottom: 5px;
}

input {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

button {
  background-color: #4CAF50;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#result {
  font-weight: bold;
  color: #333;
  margin-top: 20px;
  white-space: pre;
}

/* Media query for smaller screens */
@media (max-width: 768px) {
  header, nav, section, footer {
    padding: 10px;
  }

  /* Adjust font sizes if needed */
  body {
    font-size: 16px;
  }
}