/* ─── Base & Reset ─── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
  img { display: block; max-width: 100%; }

  /* ─── Selection ─── */
  ::selection { background: #C05A3A; color: #f7f7f7; }

  /* ─── Scrollbar ─── */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #0f0f0f; }
  ::-webkit-scrollbar-thumb { background: #404040; border-radius: 4px; }
  ::-webkit-scrollbar-thumb:hover { background: #C05A3A; }

  /* ─── Nav transition ─── */
  #nav.scrolled {
    background: rgba(8, 8, 8, 0.95);
    box-shadow: 0 4px 30px rgba(0,0,0,0.4);
  }

  /* ─── Hero image parallax-like subtle float ─── */
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
  #hero .relative > .absolute:last-child {
    animation: float 4s ease-in-out infinite;
  }

  /* ─── Scroll Reveal (progressive enhancement) ─── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(32px);
      transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
  }

  /* ─── Mobile menu animation ─── */
  #mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    opacity: 0;
  }
  #mobile-menu.open {
    max-height: 400px;
    opacity: 1;
  }

  /* ─── Form select arrow ─── */
  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
  }

  /* ─── Smooth focus for accessibility ─── */
  :focus-visible {
    outline: 2px solid #C05A3A;
    outline-offset: 2px;
  }

  /* ─── Divider accent ─── */
  .section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(192, 90, 58, 0.3), transparent);
  }