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

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

  body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  /* Hero background */
  .hero-bg {
    will-change: transform;
  }

  @media (prefers-reduced-motion: no-preference) {
    .hero-bg {
      animation: heroZoom 20s ease-out forwards;
    }
  }

  @keyframes heroZoom {
    from { transform: scale(1.05); }
    to   { transform: scale(1); }
  }

  /* Particles */
  @media (prefers-reduced-motion: no-preference) {
    .particle {
      position: absolute;
      border-radius: 50%;
      animation: float 6s ease-in-out infinite;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0) translateX(0); opacity: 0.4; }
      25%  { transform: translateY(-20px) translateX(10px); opacity: 0.8; }
      50%  { transform: translateY(-10px) translateX(-5px); opacity: 0.5; }
      75%  { transform: translateY(-25px) translateX(8px); opacity: 0.7; }
    }
  }

  /* Reveal animations — progressive enhancement */
  .reveal-up {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-up:nth-child(1) { transition-delay: 0.1s; }
  .reveal-up:nth-child(2) { transition-delay: 0.25s; }
  .reveal-up:nth-child(3) { transition-delay: 0.4s; }
  .reveal-up:nth-child(4) { transition-delay: 0.55s; }

  @media (prefers-reduced-motion: no-preference) {
    .reveal-up {
      opacity: 0;
      transform: translateY(30px);
    }

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

  /* Scroll reveal for sections */
  .scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(40px);
    }

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

  /* Buttons */
  .btn-primary {
    position: relative;
    overflow: hidden;
  }

  .btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
    pointer-events: none;
  }

  .btn-secondary {
    backdrop-filter: blur(8px);
  }

  /* Navbar */
  #navbar.scrolled {
    background: rgba(20, 15, 12, 0.92);
    backdrop-filter: blur(16px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  }

  /* Service cards */
  .service-card {
    transform: translateY(0);
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  }

  .service-card:hover {
    transform: translateY(-6px);
  }

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

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

  /* Map overlay button */
  .absolute.bottom-5.right-5 {
    backdrop-filter: blur(8px);
  }

  /* Selection color */
  ::selection {
    background: rgba(192, 68, 40, 0.2);
    color: #7e2e1e;
  }

  /* Focus visible */
  :focus-visible {
    outline: 2px solid #c04428;
    outline-offset: 2px;
  }

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

  ::-webkit-scrollbar-track {
    background: #faf6ec;
  }

  ::-webkit-scrollbar-thumb {
    background: #e0a856;
    border-radius: 9999px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #c04428;
  }