:root { color-scheme: light dark; --fg: #1a1a1a; --muted: #555; --bg: #fff; --accent: #0b5cd5; --note: #f3f5f9; }
@media (prefers-color-scheme: dark) {
  :root { --fg: #ececec; --muted: #a8a8a8; --bg: #121212; --accent: #7fb0ff; --note: #1e2128; }
}
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 system-ui, -apple-system, sans-serif; }
main { max-width: 42rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 1.7rem; line-height: 1.25; margin: 0.5rem 0; }
h2 { font-size: 1.2rem; margin-top: 2rem; }
a { color: var(--accent); }
.lang { text-align: right; margin: 0; }
.meta { color: var(--muted); margin-top: 0; }
.aviso { background: var(--note); padding: 0.75rem 1rem; border-radius: 6px; }
li { margin-bottom: 0.5rem; }