/* ==========================================
   ENHANCED MOBILE NAVIGATION
   ========================================== */

/* Hamburger Button */
.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 44px;
    height: 44px;
    position: relative;
    z-index: 30;
    border-radius: 8px;
    transition: background 0.3s ease;
  }
  
  .nav-toggle:hover {
    background: rgba(0, 212, 255, 0.1);
  }
  
  .nav-toggle:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }
  
  /* Hamburger Lines Container */
  .nav-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  }
  
  /* Line Positions */
  .nav-toggle span:nth-child(1) {
    top: 12px;
  }
  
  .nav-toggle span:nth-child(2) {
    top: 20px;
    width: 28px;
  }
  
  .nav-toggle span:nth-child(3) {
    top: 28px;
  }
  
  /* Hover effect - lines get accent color */
  .nav-toggle:hover span {
    background: var(--accent);
  }
  
  /* Active state - Transform to X */
  .site-header.nav-open .nav-toggle span:nth-child(1) {
    top: 20px;
    transform: translateX(-50%) rotate(45deg);
    background: var(--accent);
  }
  
  .site-header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
    transform: translateX(-50%) scale(0);
  }
  
  .site-header.nav-open .nav-toggle span:nth-child(3) {
    top: 20px;
    transform: translateX(-50%) rotate(-45deg);
    background: var(--accent);
  }
  
  /* Mobile dropdown */
  .nav-mobile {
    display: none;
    position: absolute;
    left: 5%;
    right: 5%;
    top: calc(100% + 10px);
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    box-shadow: 
      var(--shadow),
      0 0 0 1px rgba(0, 212, 255, 0.1);
    backdrop-filter: blur(14px);
    padding: 0.8rem;
    z-index: 20;
    
    /* Animation properties */
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
  }
  
  /* Fancy gradient border effect */
  .nav-mobile::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: linear-gradient(
      135deg,
      rgba(0, 212, 255, 0.3) 0%,
      rgba(0, 212, 255, 0.05) 50%,
      rgba(0, 212, 255, 0.3) 100%
    );
    border-radius: 18px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  /* Menu Items */
  .nav-mobile a {
    display: block;
    padding: 0.9rem 1rem;
    border-radius: 14px;
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    
    /* Stagger animation */
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  }
  
  /* Stagger delay for each item */
  .nav-mobile a:nth-child(1) { transition-delay: 0.05s; }
  .nav-mobile a:nth-child(2) { transition-delay: 0.1s; }
  .nav-mobile a:nth-child(3) { transition-delay: 0.15s; }
  .nav-mobile a:nth-child(4) { transition-delay: 0.2s; }
  .nav-mobile a:nth-child(5) { transition-delay: 0.25s; }
  .nav-mobile a:nth-child(6) { transition-delay: 0.3s; }
  .nav-mobile a:nth-child(7) { transition-delay: 0.35s; }
  
  /* Hover effect for menu items */
  .nav-mobile a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(180deg, var(--accent), rgba(0, 212, 255, 0.5));
    border-radius: 0 4px 4px 0;
    transform: scaleY(0);
    transition: transform 0.2s ease;
  }
  
  .nav-mobile a:hover::before {
    transform: scaleY(1);
  }
  
  .nav-mobile a:hover {
    background: rgba(0, 212, 255, 0.1);
    padding-left: 1.5rem;
    color: var(--accent);
  }
  
  .nav-mobile a:active {
    transform: scale(0.98);
  }
  
  /* When menu is open */
  .site-header.nav-open .nav-mobile {
    display: block;
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }
  
  .site-header.nav-open .nav-mobile::before {
    opacity: 1;
  }
  
  .site-header.nav-open .nav-mobile a {
    opacity: 1;
    transform: translateX(0);
  }
  
  /* Backdrop overlay */
  .nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 15;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  .site-header.nav-open .nav-backdrop {
    display: block;
    opacity: 1;
  }
  
  /* Responsive - Show hamburger on smaller screens */
  @media (max-width: 1024px) {
    .nav-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
    }
  }
  
  /* Extra polish for tablets */
  @media (max-width: 768px) {
    .nav-mobile {
      left: 3%;
      right: 3%;
    }
    
    .nav-mobile a {
      font-size: 0.95rem;
    }
  }
  
  /* Accessibility - Reduce motion */
  @media (prefers-reduced-motion: reduce) {
    .nav-toggle span,
    .nav-mobile,
    .nav-mobile a,
    .nav-backdrop {
      transition-duration: 0.01ms !important;
    }
  }