.nav-bar {
  display: flex;
  justify-content: center;
  gap: 20px;
  list-style: none;
  padding: 15px 0;
  margin: 0;
  background-color: rgba(0, 0, 0, 0.8);
}

.nav-bar li a {
  text-decoration: none;
  color: #fff;
  font-weight: bold;
  padding: 10px 20px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.nav-bar li a:hover,
.nav-bar li a.active {
  background-color: rgba(255, 255, 255, 0.2);
}