/* ===== Base & Utilities ===== */
  *, *::before, *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
  }

  body {
    overflow-x: hidden;
  }

  img {
    max-width: 100%;
    height: auto;
  }

  ::selection {
    background-color: #a33030;
    color: #fff5f5;
  }

  /* ===== 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);
    }
  }

  /* Fallback: ensure content is visible even without JS */
  @media (prefers-reduced-motion: reduce) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }
  }

  /* ===== Mobile Menu Transitions ===== */
  #mobileMenu.open {
    max-h: 400px;
  }

  #menuBtn.active #bar1 {
    transform: translateY(5.5px) rotate(45deg);
  }
  #menuBtn.active #bar2 {
    opacity: 0;
  }
  #menuBtn.active #bar3 {
    transform: translateY(-5.5px) rotate(-45deg);
  }

  /* ===== Navbar shadow on scroll ===== */
  #navbar.scrolled {
    box-shadow: 0 4px 20px rgba(163, 48, 48, 0.1);
  }

  /* ===== Custom scrollbar ===== */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #fdf0f0;
  }
  ::-webkit-scrollbar-thumb {
    background: #c44141;
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #a33030;
  }