body {
  font-family: Arial, sans-serif;
  margin: 0;
  background-color: #121212;
  color: #f0f0f0;
}

nav {
  background-color: #333;
  padding: 10px;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
}

nav ul li {
  margin-right: 15px;
}

nav ul li a {
  color: #f0f0f0;
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 5px;
}

nav ul li a:hover {
  background-color: #555;
}

header {
  text-align: center;
  padding: 20px;
}

section {
  padding: 20px;
  max-width: 800px;
  margin: auto;
}

h1 {
  font-size: 2.5em;
  color: #e50914;
}

h2 {
  font-size: 2em;
  color: #ffa500;
}

h3 {
  font-size: 1.5em;
  color: #66c2ff;
}

.gallery img {
  width: 300px;
  margin: 10px;
  border-radius: 10px;
}