:root {
  --bg: #ffffff;
  --text: #1d2330;
  --muted: #5d6576;
  --line: #e3e6ec;
  --accent: #4f5bd5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --text: #e8eaf0;
    --muted: #9aa1b2;
    --line: #2a2f3b;
    --accent: #8f98ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
header { border-bottom: 1px solid var(--line); margin-bottom: 28px; padding-bottom: 16px; }
.marca { font-weight: 800; letter-spacing: .02em; color: var(--accent); text-decoration: none; }
h1 { font-size: 28px; line-height: 1.25; margin: 12px 0 4px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
.fecha, footer { color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 4px 0; }
footer { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 16px; }