:root { color-scheme: light dark; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}
main { max-width: 34rem; padding: 2rem; }
h1 { font-size: 2.5rem; margin: 0; letter-spacing: 0.02em; }
.quien { margin-top: 0.25rem; opacity: 0.75; }
section { margin-top: 1.5rem; }
section + section { opacity: 0.8; }
.contacto { margin-top: 2rem; }
a { color: inherit; }