/* ── Base ── */
  html { scroll-behavior: smooth; }
  body { overflow-x: hidden; }
  a { text-decoration: none; }

  /* ── Floating card animations ── */
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
  @keyframes float-delayed {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
  }
  .animate-float { animation: float 3.5s ease-in-out infinite; }
  .animate-float-delayed { animation: float-delayed 4s ease-in-out infinite 0.8s; }

  /* ── Scroll reveal ── */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ── Nav shadow on scroll ── */
  nav.scrolled {
    box-shadow: 0 1px 12px rgba(0,0,0,0.06);
  }

  /* ── 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='%23967d66' 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;
  }

  /* ── Mobile menu transitions ── */
  #mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  #mobileMenu.open {
    max-height: 300px;
  }