body {
  background-color: #121212;
  color: #e0e0e0;
  font-family: 'Vazir', Tahoma, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #1f1f1f;
  padding: 20px;
  text-align: center;
  border-bottom: 2px solid #333;
}

header h1 {
  color: #00ff99;
  margin: 0;
}

nav {
  background-color: #222;
  display: flex;
  justify-content: flex-start;
  padding: 10px;
}

nav a {
  color: #e0e0e0;
  text-decoration: none;
  margin: 0 15px;
  transition: color 0.3s;
}

nav a:hover {
  color: #00ff99;
}

main {
  padding: 20px;
  line-height: 1.8;
}

section {
  margin-bottom: 30px;
  background-color: #1c1c1c;
  padding: 15px;
  border-radius: 8px;
}

section h2 {
  color: #00ff99;
  margin-top: 0;
}

footer {
  background-color: #1f1f1f;
  text-align: center;
  padding: 15px;
  border-top: 2px solid #333;
  font-size: 14px;
}