CSS para Astro

Layout.astro

@import url('https://necolas.github.io/normalize.css/8.0.1/normalize.css');
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;700;900&display=swap');

:root {
  --primary: #e99401;
  --black: #262626;
  --white: #FFF;
  --fuente-principal: 'Outfit', sans-serif;
}
html {
  font-size: 62.5%;
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  font-size: 2rem;
  font-family: var(--fuente-principal);
  line-height: 1.5;
}
img {
  max-width: 100%;
  height: auto;
}
[class*="contenedor"], 
main {
  width: min(95%, 120rem);
  margin: 3rem auto;
}
[class*="heading"] {
  font-size: 4rem;
  text-align: center;
  font-weight: 900;
  color: var(--primary);
  margin: 5rem 0;
}
.error,
.error-enlace {
  font-size: 2.4rem;
  text-align: center;
  margin-top: 5rem;
}
.error-enlace {
  font-size: 1.8rem;
  display: block;
  text-decoration: none;
  color: var(--primary);
}
.grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 4rem;
}
@media (min-width: 768px) {
	.grid {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (min-width: 992px) {
	.grid {
		grid-template-columns: repeat(3, 1fr);
	}
}

gracias