body {
  font-family: Arial, sans-serif;
  background: #fff;
  color: #333;
  margin: 0;
  padding: 0;
  animation: fadeIn 1s ease-in;
}
header, footer {
  background-color: #ff6600;
  color: white;
  padding: 1em;
  text-align: center;
}
nav {
  background-color: #fff;
  padding: 0.75em;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
nav a {
  color: #ff6600;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}
nav a:hover {
  color: #333;
}
main {
  padding: 2em;
  max-width: 800px;
  margin: auto;
  background: white;
  margin-top: 1em;
}
ul {
  list-style-type: none;
  padding-left: 0;
}
ul li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-right: 8px;
  color: #ff6600;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}