@media (max-width: 768px) {
  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 60px;
    z-index: 1000;
    background-color: #1e1e1e;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .nav-top3,
  .nav-links {
    display: none;
  }

  .nav-title {
    font-size: 1.2rem;
    text-align: center;
  }

  .nav-logo img {
    height: 28px;
  }

  #page-content {
    padding-top: 60px; /* Prevent overlap with fixed navbar */
  }
}