:root { --bg: #fbfaf7; --fg: #1d1d1b; --muted: #6b6a66; --accent: #1f5f8b; --line: #e4e1da; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #141413; --fg: #ecebe6; --muted: #a3a19b; --accent: #7fb4dc; --line: #2c2b28; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: .2em 0 .6em; }
h2 { font-size: 1.15rem; margin: 2em 0 .4em; }
a { color: var(--accent); }
ul { padding-left: 1.2em; }
.marca { color: var(--muted); font-size: .9rem; letter-spacing: .04em; margin: 0; }
.marca a { color: inherit; text-decoration: none; }
.fecha { color: var(--muted); font-size: .9rem; }
.en { margin-top: 2.5em; padding-top: 1em; border-top: 1px solid var(--line); color: var(--muted); font-size: .95rem; }