*, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
  img { max-width: 100%; height: auto; }

  /* Smooth scroll offset for fixed nav */
  section[id] { scroll-margin-top: 80px; }

  /* Mobile menu animation */
  #mobile-menu { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; }
  #mobile-menu.open { max-height: 400px; padding-top: 0; }

  /* Navbar scroll state */
  #nav.scrolled { background: rgba(250, 250, 247, 0.95); backdrop-filter: blur(12px); box-shadow: 0 1px 0 rgba(70, 102, 64, 0.08); }

  /* Scroll reveal — progressive enhancement, only below fold */
  @media (prefers-reduced-motion: no-preference) {
    .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s ease, transform 0.8s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
  }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; }
  }

  /* Selection color */
  ::selection { background: rgba(70, 102, 64, 0.2); }