:root { --verde: #16843a; --verde-claro: #d5f5dd; --tinta: #1c2520; --gris: #5a6660; --fondo: #f6faf7; --papel: #fff; }
@media (prefers-color-scheme: dark) {
  :root { --verde: #5fd38a; --verde-claro: #1d3a27; --tinta: #e6efe9; --gris: #a3b1a9; --fondo: #0f1512; --papel: #161e19; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--tinta); background: var(--fondo); }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
header img { width: 48px; height: 48px; border-radius: 12px; background: #fff; }
header a { color: inherit; text-decoration: none; font-weight: 600; font-size: 20px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 32px 0 8px; color: var(--verde); }
.fecha { color: var(--gris); margin: 0 0 24px; }
.caja { background: var(--papel); border: 1px solid var(--verde-claro); border-radius: 14px; padding: 20px; }
a { color: var(--verde); }
ul { padding-left: 22px; }
footer { margin-top: 40px; color: var(--gris); font-size: 14px; }
.caja > :first-child { margin-top: 0; }
.caja > :last-child { margin-bottom: 0; }