/* Landing-page-only typography.
   Keeps the authenticated academy UI on its existing type system. */

body:has(main#top) {
  --font-sans: "IBM Plex Sans", Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Libre Baskerville", Georgia, "Times New Roman", serif;
  font-family: var(--font-sans);
  font-optical-sizing: auto;
}

body:has(main#top) header,
body:has(main#top) main,
body:has(main#top) footer {
  font-family: var(--font-sans);
}

body:has(main#top) .font-serif {
  font-family: var(--font-serif);
  text-wrap: balance;
  font-kerning: normal;
}

body:has(main#top) h1.font-serif,
body:has(main#top) h2.font-serif {
  font-weight: 400;
}

body:has(main#top) h1.font-serif {
  max-width: 14.5ch;
  font-size: clamp(2.55rem, 6.2vw, 4.55rem);
  line-height: 1.015;
  letter-spacing: -0.042em;
  text-wrap: balance;
}

body:has(main#top) h2.font-serif {
  line-height: 1.09;
  letter-spacing: -0.032em;
}

body:has(main#top) h3.font-serif {
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.028em;
}

body:has(main#top) p {
  letter-spacing: -0.008em;
}

@media (max-width: 640px) {
  body:has(main#top) h1.font-serif {
    max-width: 16ch;
    font-size: clamp(2.35rem, 11vw, 3.2rem);
    line-height: 1.04;
    letter-spacing: -0.035em;
  }
}