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

  /* ===== NAV ===== */
  #nav {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
  }
  #nav.scrolled {
    background: rgba(242, 251, 249, 0.92);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 20px rgba(10, 37, 64, 0.08);
  }
  .nav-link { position: relative; }
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1FBFA0;
    transition: width 0.3s ease;
    border-radius: 1px;
  }
  .nav-link:hover::after { width: 100%; }

  /* ===== MOBILE MENU ===== */
  #mobile-menu.open { opacity: 1; pointer-events: all; }
  #mobile-menu.closed { opacity: 0; pointer-events: none; }
  .menu-line { transition: all 0.3s ease; }
  #menu-btn.active .menu-line:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
  #menu-btn.active .menu-line:nth-child(2) { opacity: 0; }
  #menu-btn.active .menu-line:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); width: 24px; }

  /* ===== HERO ===== */
  @media (prefers-reduced-motion: no-preference) {
    .hero-float {
      animation: heroFloat 6s ease-in-out infinite;
    }
    .hero-float-delay {
      animation: heroFloat 6s ease-in-out 2s infinite;
    }
  }
  @keyframes heroFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
  }

  /* ===== SCROLL REVEAL (below-fold only) ===== */
  .reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(30px);
    }
    .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; }
    .reveal-delay-6 { transition-delay: 0.6s; }
  }

  /* ===== CARD HOVER ===== */
  @media (prefers-reduced-motion: no-preference) {
    .amenity-card {
      transition: transform 0.4s ease, box-shadow 0.4s ease;
    }
    .amenity-card:hover {
      transform: translateY(-4px);
    }
  }

  /* ===== CTA BUTTON ===== */
  @media (prefers-reduced-motion: no-preference) {
    .cta-btn {
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .cta-btn:hover {
      transform: translateY(-2px);
    }
  }

  /* ===== MOBILE LINKS ===== */
  .mobile-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  #mobile-menu.closed .mobile-link {
    opacity: 0;
    transform: translateY(10px);
  }

  /* ===== FORM ===== */
  input:focus, textarea:focus {
    outline: none;
  }

  /* ===== CUSTOM SCROLLBAR ===== */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #f2fbf9; }
  ::-webkit-scrollbar-thumb { background: #bcebe0; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #88d9c8; }

  /* ===== SELECTION ===== */
  ::selection { background: #bcebe0; color: #0A2540; }
</style>