/* ── Base ── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; -webkit-font-smoothing: antialiased; }

  /* ── Nav ── */
  #nav {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease;
  }
  #nav.scrolled {
    background: rgba(250, 245, 251, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(123, 45, 119, 0.08);
  }

  /* ── Mobile Menu ── */
  #mobile-menu.open { opacity: 1 !important; pointer-events: all !important; }
  .mobile-link { transition: opacity 0.3s ease; }

  /* ── Menu Tabs ── */
  .menu-tab {
    color: #7B2D77;
    background: transparent;
    border: none;
    cursor: pointer;
  }
  .menu-tab.active {
    background: linear-gradient(135deg, #7B2D77, #8E3D88);
    color: white;
    box-shadow: 0 4px 12px rgba(123, 45, 119, 0.3);
  }
  .menu-tab:not(.active):hover {
    background: rgba(123, 45, 119, 0.08);
  }

  /* ── Scroll Reveal (progressive enhancement) ── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal.revealed {
      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; }
  }

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

  /* ── Selection ── */
  ::selection { background: rgba(168, 85, 160, 0.2); color: #4E1D4C; }

  /* ── Focus visible ── */
  :focus-visible { outline: 2px solid #E8A04A; outline-offset: 2px; border-radius: 4px; }

  /* ── Custom scrollbar ── */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #FAF5FB; }
  ::-webkit-scrollbar-thumb { background: #D9A8D4; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #C47ABD; }