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

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

  body {
    overflow-x: hidden;
  }

  ::selection {
    background: #34a87c;
    color: #ffffff;
  }

  /* ========== Navigation ========== */
  .nav-link {
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #34a87c;
    transition: width 0.3s ease;
  }

  .nav-link:hover::after {
    width: 100%;
  }

  .nav-text-color {
    color: #0d1f33;
  }

  .nav-text-subtle {
    color: #5078ac;
  }

  header.scrolled .nav-text-color {
    color: #0d1f33;
  }

  header.scrolled .nav-text-subtle {
    color: #5078ac;
  }

  header.scrolled .nav-link {
    color: #0d1f33;
  }

  /* ========== Mobile Menu ========== */
  .menu-line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: #0d1f33;
    transition: all 0.3s ease;
  }

  #menu-toggle.active .menu-line:nth-child(1) {
    transform: translateX(-50%) rotate(45deg);
    top: 11px;
  }

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

  #menu-toggle.active .menu-line:nth-child(3) {
    transform: translateX(-50%) rotate(-45deg);
    top: 11px;
  }

  .mobile-nav-link {
    font-size: 1.5rem;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

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

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

  /* ========== Scroll Indicator ========== */
  @keyframes scrollLine {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
  }

  .animate-scroll-line {
    animation: scrollLine 1.5s ease-in-out infinite;
  }

  /* ========== Service Cards ========== */
  .service-card {
    position: relative;
    overflow: hidden;
  }

  .service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: #34a87c;
    transition: height 0.4s ease;
  }

  .service-card:hover::before {
    height: 100%;
  }

  /* ========== Testimonial Cards ========== */
  .testimonial-card {
    position: relative;
  }

  .testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 16px;
    left: 20px;
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 4rem;
    line-height: 1;
    color: #d5f2e8;
    z-index: 0;
  }

  .testimonial-card > * {
    position: relative;
    z-index: 1;
  }

  /* ========== Scroll Reveal (progressive enhancement) ========== */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal.revealed {
      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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
  }

  /* ========== Reduced motion ========== */
  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }

    .animate-scroll-line {
      animation: none;
    }

    .service-card::before,
    .service-card > div:first-child,
    .nav-link::after {
      transition: none;
    }
  }

  /* ========== Form 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='%235078ac' 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 12px center;
    padding-right: 36px;
  }