/* ─── Base & Reset ─── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; overflow-x: hidden; }
  img { max-width: 100%; height: auto; }

  /* ─── Custom Scrollbar ─── */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #f0fdf9; }
  ::-webkit-scrollbar-thumb { background: #99f6db; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #5fe8be; }

  /* ─── Reveal Animations (progressive enhancement) ─── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(32px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal-visible {
      opacity: 1;
      transform: translateY(0);
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; }
  }

  /* ─── Floating Blobs ─── */
  .blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    pointer-events: none;
    z-index: 0;
  }
  .blob-1 {
    width: 500px;
    height: 500px;
    background: #99f6db;
    top: -100px;
    right: -100px;
    animation: float-slow 20s ease-in-out infinite;
  }
  .blob-2 {
    width: 400px;
    height: 400px;
    background: #dce6f0;
    bottom: 20%;
    left: -80px;
    animation: float-slow 25s ease-in-out infinite reverse;
  }
  .blob-3 {
    width: 300px;
    height: 300px;
    background: #ccfbef;
    top: 50%;
    right: 10%;
    animation: float-slow 18s ease-in-out infinite;
  }
  @keyframes float-slow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
  }

  /* ─── Navbar ─── */
  #navbar {
    background: rgba(240, 253, 249, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(153, 246, 219, 0.2);
  }
  #navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(15, 43, 76, 0.06);
  }

  /* ─── Mobile Menu ─── */
  #mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-link {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
  }
  #mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
  }
  #mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
  #mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
  #mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
  #mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
  #mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

  /* ─── Service Cards ─── */
  .service-card {
    transform: translateY(0);
  }

  /* ─── Gallery Items ─── */
  .gallery-item img {
    display: block;
  }

  /* ─── Selection ─── */
  ::selection {
    background: #99f6db;
    color: #0f2b4c;
  }

  /* ─── Form Styles ─── */
  select option {
    color: #0f2b4c;
    background: #f0fdf9;
  }

  /* ─── Smooth image loading ─── */
  img {
    background: linear-gradient(135deg, #f0fdf9 0%, #dce6f0 100%);
  }

  /* ─── Utility ─── */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }