*, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; }

  /* Navbar scroll state */
  #nav.scrolled {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.04);
  }
  #nav.scrolled .nav-logo-text { color: #1c1c1f; }
  #nav.scrolled .nav-link { color: #52525b; }

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

  /* Mobile menu */
  #mobile-menu {
    animation: slideDown 0.25s ease-out;
  }
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* Custom scrollbar */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #fff5f5; }
  ::-webkit-scrollbar-thumb { background: #f5a0a0; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #f05252; }

  /* Selection */
  ::selection { background: #f5a0a0; color: #fff; }