/* ── Base & Scrollbar ── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { overflow-x: hidden; }

  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #0d0712; }
  ::-webkit-scrollbar-thumb { background: #3d1b51; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #53246e; }

  ::selection { background: rgba(251, 191, 36, 0.3); color: #f5f0fb; }

  /* ── Scroll Reveal ── */
  .scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .scroll-reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* ── Floating Cards ── */
  @media (prefers-reduced-motion: no-preference) {
    .floating-card {
      animation: float 6s ease-in-out infinite;
    }
    .card-1 { animation-delay: 0s; }
    .card-2 { animation-delay: -1.5s; }
    .card-3 { animation-delay: -3s; }
    .card-4 { animation-delay: -4.5s; }
  }

  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
  }

  /* ── Navbar Glass ── */
  #navbar.scrolled {
    background: rgba(8, 4, 12, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(126, 63, 168, 0.15);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  }

  /* ── Gold Accent Line ── */
  .gold-line {
    height: 2px;
    background: linear-gradient(90deg, transparent, #fbbf24, transparent);
  }

  /* ── Input Date Fix ── */
  input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.7) sepia(1) saturate(3) hue-rotate(10deg);
    cursor: pointer;
  }

  /* ── Mobile Menu Transition ── */
  #mobile-menu.open {
    opacity: 1;
    pointer-events: all;
  }

  /* ── Button Glow ── */
  .btn-glow {
    position: relative;
    overflow: hidden;
  }
  .btn-glow::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.1) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
  }
  .btn-glow:hover::after {
    transform: translateX(100%);
  }

  /* ── Card Hover Lift ── */
  .room-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
  }
  .room-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(251, 191, 36, 0.08);
  }

  /* ── Ambient Glow Orbs ── */
  .glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.4;
  }