@media (max-width: 768px) {
  /* Hide desktop nav */
  nav, [class*="sidebar"], [class*="navigation"] {
    display: none !important;
  }
  
  /* Hamburger button */
  #mobileMenuBtn {
    display: block !important;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 1000;
    background: var(--accent, #667eea);
    border: none;
    color: white;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 20px;
  }
  
  /* Mobile menu */
  #mobileMenu {
    position: fixed;
    left: 0;
    top: 0;
    width: 80%;
    max-width: 300px;
    height: 100%;
    background: var(--bg-primary, #0a0a0f);
    z-index: 999;
    padding: 80px 20px 20px;
    transform: translateX(-100%);
    transition: transform 0.3s;
    overflow-y: auto;
  }
  
  #mobileMenu.open {
    transform: translateX(0);
  }
  
  .mobile-nav-item {
    padding: 14px 16px;
    color: var(--text-primary, #e5e5e5);
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 8px;
    transition: background 0.2s;
  }
  
  .mobile-nav-item:hover, .mobile-nav-item.active {
    background: var(--accent, #667eea);
    color: white;
  }
  
  #mobileMenuOverlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
  }
  
  #mobileMenuOverlay.open {
    display: block;
  }
  
  /* Full width content on mobile */
  body {
    overflow-x: hidden;
  }
  
  [class*="container"], [class*="content"], main {
    padding: 0 !important;
    margin-left: 0 !important;
  }
}

@media (max-width: 480px) {
  #mobileMenu {
    width: 100%;
    max-width: none;
  }
}