/* ─── Base & Reset ─── */
  *, *::before, *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  body {
    margin: 0;
    overflow-x: hidden;
  }

  img {
    display: block;
    max-width: 100%;
  }

  ::selection {
    background: rgba(212, 160, 23, 0.3);
    color: #fff;
  }

  /* ─── Scrollbar ─── */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #1a0a2e;
  }
  ::-webkit-scrollbar-thumb {
    background: rgba(212, 160, 23, 0.3);
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 160, 23, 0.5);
  }

  /* ─── Navbar ─── */
  #navbar {
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    background: transparent;
  }

  #navbar.scrolled {
    background: rgba(26, 10, 46, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(212, 160, 23, 0.1);
  }

  .nav-link {
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #d4a017;
    transition: width 0.3s ease;
  }

  .nav-link:hover::after {
    width: 100%;
  }

  .nav-link:hover {
    color: #d4a017;
  }

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

  .mobile-link {
    font-family: 'Playfair Display', Georgia, serif;
  }

  .menu-line {
    display: block;
  }

  #menu-toggle.open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  #menu-toggle.open .menu-line:nth-child(2) {
    opacity: 0;
  }
  #menu-toggle.open .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* ─── Menu Tabs ─── */
  .menu-tab {
    background: transparent;
    color: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
    cursor: pointer;
    font-family: 'Inter', system-ui, sans-serif;
    transition: all 0.3s ease;
  }

  .menu-tab:hover {
    color: rgba(255, 255, 255, 0.7);
    border-color: rgba(212, 160, 23, 0.3);
  }

  .menu-tab.active {
    background: rgba(212, 160, 23, 0.15);
    color: #d4a017;
    border-color: rgba(212, 160, 23, 0.5);
  }

  /* ─── Gold shimmer animation ─── */
  @keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
  }

  /* ─── Fade-in on scroll (progressive enhancement) ─── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }
    html {
      scroll-behavior: auto;
    }
  }

  /* ─── Focus styles ─── */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible {
    outline: 2px solid rgba(212, 160, 23, 0.7);
    outline-offset: 2px;
  }

  /* ─── Responsive adjustments ─── */
  @media (max-width: 767px) {
    #hero {
      padding-top: 6rem;
    }

    #hero h1 {
      font-size: 2.75rem;
      line-height: 1.1;
    }

    .floating-card {
      position: relative;
      margin-top: 1rem;
    }
  }

  @media (min-width: 768px) and (max-width: 1023px) {
    #hero h1 {
      font-size: 4rem;
    }
  }