/* Global styles */
body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  color: #333;
}

h1, h2, h3 {
  color: #0070c9;
}

a {
  color: #0070c9;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Layout */
header {
  background: #f4f4f4;
  padding: 1rem;
  text-align: center;
}

nav ul {
  list-style: none;
  padding: 0;
}

nav ul li {
  display: inline;
  margin-right: 1rem;
}

main {
  margin: 2rem auto;
  max-width: 800px;
  padding: 0 1rem;
}

section {
  margin-bottom: 2rem;
}

footer {
  background: #f4f4f4;
  padding: 1rem;
  text-align: center;
  margin-top: 2rem;
}

/* Elements */
code, pre {
  background: #f4f4f4;
  padding: 0.25rem;
}

pre {
  padding: 1rem;
  overflow-x: auto;
}

form {
  display: grid;
  grid-gap: 1rem;
}

form label {
  font-weight: bold;
}

form input,
form textarea {
  width: 100%;
  padding: 0.5rem;
}

form button {
  background: #0070c9;
  border: none;
  color: white;
  padding: 0.5rem;
  cursor: pointer;
}

img {
  max-width: 100%;
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: 1rem;
}

.mt-2 {
  margin-top: 2rem;
}

.mb-1 {
  margin-bottom: 1rem;
}

.mb-2 {
 margin-bottom: 2rem;
}