* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}