/* Smooth scrolling */
  html {
    scroll-behavior: smooth;
  }

  /* Scroll reveal animations - progressive enhancement */
  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

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

  /* Fallback: ensure content is visible even without JS */
  .scroll-reveal {
    opacity: 1;
    transform: none;
  }

  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
  }

  /* Navbar glass effect when scrolled */
  #navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
  }

  /* Custom scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }

  ::-webkit-scrollbar-track {
    background: #f1f5f9;
  }

  ::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
  }

  /* Selection color */
  ::selection {
    background: #99f6e4;
    color: #134e4a;
  }

  /* Subtle gradient animation for hero */
  @keyframes shimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  /* Focus styles for accessibility */
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* Mobile menu animation */
  #mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  #mobile-menu.open {
    max-height: 400px;
  }