/* Custom styles & animations */
  :root {
    --teal-50: #f0fdfa;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --slate-900: #0f172a;
    --slate-700: #334155;
    --slate-500: #64748b;
    --slate-50: #f8fafc;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    overflow-x: hidden;
  }

  /* Navbar scroll state */
  #navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
  }

  /* Mobile menu */
  #mobile-menu.open {
    opacity: 1;
    pointer-events: all;
  }

  #mobile-menu.open .mobile-link {
    animation: fadeDown 0.3s ease forwards;
  }

  #mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
  #mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
  #mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
  #mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
  #mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

  @keyframes fadeDown {
    from {
      opacity: 0;
      transform: translateY(-12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Mobile menu button animation */
  #menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
  }
  #menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  #menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.5rem;
  }

  /* Reveal animations — progressive enhancement */
  .reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }

    /* Stagger children */
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
  }

  /* Reduced motion: disable all transitions */
  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }
    .group:hover img {
      transform: none;
    }
  }

  /* Focus styles */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
  }

  /* Custom scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #f8fafc;
  }
  ::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
  }
</style>