/* ===== BASE ===== */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; }
  img { max-width: 100%; height: auto; }

  /* ===== NAVBAR ===== */
  #navbar {
    background: transparent;
    transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
  }
  #navbar.scrolled {
    background: rgba(254, 253, 248, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(5, 150, 105, 0.08);
  }

  /* ===== MOBILE MENU ===== */
  #mobileMenu {
    animation: slideDown 0.25s ease;
  }
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .mobile-link {
    display: block;
    transition: color 0.2s, padding-left 0.2s;
  }
  .mobile-link:hover {
    color: #059669;
    padding-left: 8px;
  }

  /* ===== FLOATING CARDS ===== */
  .floating-card {
    animation: float 4s ease-in-out infinite;
  }
  .floating-card-delayed {
    animation: float 4s ease-in-out infinite;
    animation-delay: 1.5s;
  }
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
  }

  /* ===== SCROLL REVEAL ===== */
  .reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(24px);
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* ===== CUSTOM SCROLLBAR ===== */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #ecfdf5; }
  ::-webkit-scrollbar-thumb { background: #6ee7b7; border-radius: 999px; }
  ::-webkit-scrollbar-thumb:hover { background: #34d399; }

  /* ===== SELECTION ===== */
  ::selection { background: #d1fae5; color: #064e3b; }
</style>