/* Base & Typography */
  html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  body {
    overflow-x: hidden;
  }

  ::selection {
    background-color: rgba(250, 204, 21, 0.3);
    color: #f9f5f7;
  }

  /* Custom Scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #2a151c;
  }
  ::-webkit-scrollbar-thumb {
    background: #6f3d4e;
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #9c6178;
  }

  /* Navbar */
  #navbar {
    transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
  }

  #navbar.scrolled {
    background-color: rgba(42, 21, 28, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  }

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

  .mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
  }

  #mobileMenu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
  }

  #mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
  #mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
  #mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
  #mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
  #mobileMenu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

  /* Menu Button Animation */
  #menuBtn.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  #menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  #menuBtn.active .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
    width: 1.25rem;
  }

  /* Service Cards */
  .service-card {
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.4s ease, box-shadow 0.4s ease;
  }

  .service-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(250, 204, 21, 0.1);
  }

  /* Scroll Reveal Animations */
  .reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  .reveal-hidden {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

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

  /* Stagger delays */
  .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 */
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal, .reveal-hidden {
      opacity: 1;
      transform: none;
      transition: none;
    }
    .service-card { transition: none; }
    .service-card:hover { transform: none; }
    #mobileMenu .mobile-link {
      opacity: 1;
      transform: none;
      transition-delay: 0s;
    }
  }

  /* Form Focus Styles */
  input:focus, select:focus, textarea:focus {
    outline: none;
  }

  /* Select arrow */
  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239c6178' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
  }

  /* Hero subtle parallax on scroll */
  @media (prefers-reduced-motion: no-preference) {
    #hero img {
      transition: transform 0.1s linear;
    }
  }