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

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

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

  /* Selection */
  ::selection {
    background: rgba(13, 110, 79, 0.15);
    color: #053A28;
  }

  /* Scrollbar */
  ::-webkit-scrollbar {
    width: 6px;
  }
  ::-webkit-scrollbar-track {
    background: #FBF8F1;
  }
  ::-webkit-scrollbar-thumb {
    background: #0D6E4F;
    border-radius: 3px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #0A5C41;
  }

  /* Navigation */
  #header.scrolled {
    background: rgba(253, 251, 247, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(13, 110, 79, 0.08);
  }

  .nav-link {
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: #0D6E4F;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
  }

  .nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

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

  /* Hero floating card */
  @media (prefers-reduced-motion: no-preference) {
    .floating-card {
      animation: float 6s ease-in-out infinite;
    }
  }

  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }

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

  .service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(2, 31, 22, 0.3);
  }

  /* Approach items */
  .approach-item {
    opacity: 1;
  }

  /* Contact form inputs */
  input:focus,
  textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 211, 153, 0.2);
  }

  /* Scroll reveal (progressive enhancement) */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 1;
      transform: translateY(0);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
    html {
      scroll-behavior: auto;
    }
  }