/* Reset some default styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #333;
  max-width: 900px;
  margin: 20px auto;
  padding: 0 20px;
}

header {
  margin-bottom: 20px;
  border-bottom: 1px solid #ddd;
}

nav a {
  text-decoration: none;
  color: #555;
  margin-right: 15px;
  font-weight: bold;
  padding-bottom: 5px;
}

nav a.active, nav a:hover {
  border-bottom: 2px solid #007BFF;
  color: #007BFF;
}

main {
  background: #fff;
  padding: 20px;
  border-radius: 5px;
}

h1 {
  margin-bottom: 10px;
}

img {
  max-width: 100%;
  height: auto;
  margin-top: 15px;
  border-radius: 5px;
}

footer {
  margin-top: 30px;
  text-align: center;
  color: #777;
  font-size: 0.9rem;
}