@media (max-width: 900px) {
  .nav-menu {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: var(--primary-navy);
    flex-direction: column;
    padding: 2rem 0;
    transition: left 0.3s ease;
  }

  .nav-menu.active {
    left: 0;
  }

  .hamburger {
    display: flex;
  }

  .hero h1 {
    font-size: 2.25rem;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}