/* ── Base & Utilities ── */
  html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  body {
    overflow-x: hidden;
  }

  ::selection {
    background-color: rgba(184, 226, 208, 0.4);
    color: #0A2342;
  }

  /* ── Scroll Reveal (progressive enhancement) ── */
  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

  /* Default visible state for reduced-motion or no-JS */
  .scroll-reveal {
    opacity: 1;
    transform: none;
  }

  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(24px);
    }

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

  /* ── Navbar ── */
  #nav {
    background: rgba(250, 250, 252, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(200, 214, 232, 0.5);
  }

  #nav.scrolled {
    box-shadow: 0 1px 20px rgba(10, 35, 66, 0.08);
  }

  /* ── Mobile Menu ── */
  #mobile-menu.open {
    display: flex;
  }

  .mobile-link {
    display: block;
  }

  /* ── Divider Pattern ── */
  .divider-pattern {
    background-image: radial-gradient(circle, rgba(184, 226, 208, 0.3) 1px, transparent 1px);
    background-size: 20px 20px;
  }

  /* ── Button Hover Lift ── */
  a[href="#"], button[type="submit"] {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
  }

  /* ── Image Hover Zoom ── */
  .overflow-hidden img {
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  }

  /* ── Input Focus Ring ── */
  input:focus, textarea:focus {
    outline: none;
  }

  /* ── Custom Scrollbar ── */
  ::-webkit-scrollbar {
    width: 8px;
  }

  ::-webkit-scrollbar-track {
    background: #EAF0F7;
  }

  ::-webkit-scrollbar-thumb {
    background: #9DB4D4;
    border-radius: 4px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #7291C0;
  }

  /* ── Print Styles ── */
  @media print {
    #nav, #mobile-menu, .scroll-reveal { display: none; }
    body { color: #000; background: #fff; }
  }