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

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

  body {
    overflow-x: hidden;
  }

  ::selection {
    background: rgba(52, 212, 168, 0.3);
    color: #fff;
  }

  /* Custom Scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #040a17;
  }
  ::-webkit-scrollbar-thumb {
    background: rgba(52, 212, 168, 0.3);
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: rgba(52, 212, 168, 0.5);
  }

  /* Navbar */
  #navbar {
    background: transparent;
  }

  #navbar.scrolled {
    background: rgba(4, 10, 23, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav-link {
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #34d4a8;
    transition: width 0.3s ease;
  }

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

  .nav-link:hover {
    color: #34d4a8;
  }

  /* Mobile Menu */
  .mobile-link {
    position: relative;
  }

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

  #mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
  }

  /* Hero */
  #hero {
    position: relative;
  }

  /* Floating Cards */
  .absolute > div {
    will-change: transform;
  }

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

  .service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #34d4a8, transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
  }

  .service-card:hover::before {
    opacity: 1;
  }

  /* Area Cards */
  .area-card {
    position: relative;
  }

  .area-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    border: 1px solid transparent;
    transition: border-color 0.5s ease;
    pointer-events: none;
  }

  .area-card:hover::after {
    border-color: rgba(52, 212, 168, 0.3);
  }

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

  .testimonial-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    right: 24px;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 6rem;
    font-weight: 700;
    color: rgba(52, 212, 168, 0.06);
    line-height: 1;
    pointer-events: none;
  }

  /* Form */
  input:focus,
  select:focus,
  textarea:focus {
    background: rgba(255, 255, 255, 0.07);
  }

  select option {
    background: #0d1f3c;
    color: #fff;
  }

  /* Animations */
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
  }

  .floating {
    animation: float 6s ease-in-out infinite;
  }

  .floating-delay-1 {
    animation: float 6s ease-in-out 1s infinite;
  }

  .floating-delay-2 {
    animation: float 6s ease-in-out 2s infinite;
  }

  /* Reveal Animations */
  .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }

  .reveal.visible {
    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; }

  /* Responsive */
  @media (max-width: 768px) {
    html {
      scroll-padding-top: 70px;
    }

    #hero h1 {
      font-size: 2.75rem;
    }

    .absolute > div {
      display: none;
    }
  }

  @media (min-width: 769px) and (max-width: 1024px) {
    #hero h1 {
      font-size: 4rem;
    }
  }