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

  /* Scroll reveal — progressive enhancement, hidden by default */
  .scroll-reveal { opacity: 1; transform: none; transition: opacity 0.7s ease, transform 0.7s ease; }

  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal { opacity: 0; transform: translateY(30px); }
    .scroll-reveal.is-visible { opacity: 1; transform: translateY(0); }
  }

  /* Navbar scroll state */
  #navbar.scrolled {
    background: rgba(254, 250, 246, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(154, 35, 35, 0.08);
  }

  /* Custom scrollbar */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #fdf4ec; }
  ::-webkit-scrollbar-thumb { background: #d74f4f; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #9a2323; }

  /* Smooth image loading */
  img { loading: lazy; }

  /* Selection color */
  ::selection { background: #f9d4d4; color: #541515; }