*, *::before, *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
  }

  body {
    overflow-x: hidden;
  }

  ::selection {
    background: #065f46;
    color: #ecfdf5;
  }

  /* Scroll reveal — progressive enhancement */
  @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.reveal-visible {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }
  }

  /* Mobile menu */
  #mobile-menu.open {
    display: block;
  }

  /* Form focus styles */
  input:focus, textarea:focus {
    outline: none;
  }

  /* Print styles */
  @media print {
    #site-header, #back-to-top, #mobile-menu {
      display: none !important;
    }
    body {
      color: #000;
      background: #fff;
    }
  }

  /* Subtle scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #ecfdf5;
  }
  ::-webkit-scrollbar-thumb {
    background: #047857;
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #065f46;
  }