*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
  }

  body {
    overflow-x: hidden;
  }

  /* Navbar scroll state */
  #navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-blur-xl;
    box-shadow: 0 1px 20px rgba(10, 24, 40, 0.08);
  }

  #navbar.scrolled .nav-text {
    color: #0f2235;
  }

  #navbar.scrolled .nav-link {
    color: #284766;
  }

  #navbar.scrolled .nav-link:hover {
    color: #0a1828;
  }

  #navbar.scrolled .hamburger-line {
    background: #0f2235;
  }

  /* Mobile menu */
  #mobile-menu.active {
    display: block;
    animation: slideDown 0.3s ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Hamburger animation */
  #mobile-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  #mobile-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  #mobile-toggle.active .hamburger-line:nth-child(3) {
    width: 20px;
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Scroll reveal — progressive enhancement */
  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
    .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
    .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
    .scroll-reveal:nth-child(5) { transition-delay: 0.4s; }
    .scroll-reveal:nth-child(6) { transition-delay: 0.5s; }
  }

  /* Reduced motion — ensure everything is visible */
  @media (prefers-reduced-motion: reduce) {
    .scroll-reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }

    html {
      scroll-behavior: auto;
    }

    .group img {
      transition: none;
    }
  }

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

  ::-webkit-scrollbar-track {
    background: #f0fdf9;
  }

  ::-webkit-scrollbar-thumb {
    background: #99f6dd;
    border-radius: 4px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #5eead4;
  }

  /* Selection color */
  ::selection {
    background: #99f6dd;
    color: #0a1828;
  }

  /* Focus visible */
  :focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 2px;
    border-radius: 4px;
  }