:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f6f7f9;
  color: #1c1e21;
}
main { max-width: 820px; margin: 0 auto; padding: 32px 20px 64px; }
header.top { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
header.top a.brand { font-weight: 700; font-size: 20px; color: inherit; text-decoration: none; }
nav.lang a { margin-left: 12px; }
article { background: #fff; border-radius: 12px; padding: 28px 28px 20px; margin-top: 24px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 20px; margin: 28px 0 8px; }
h3 { font-size: 17px; margin: 20px 0 6px; }
p.meta { color: #65676b; margin: 0 0 20px; }
p.note { color: #65676b; font-size: 14px; border-left: 3px solid #c7cbd1; padding-left: 12px; }
article[dir="rtl"] p.note { border-left: 0; border-right: 3px solid #c7cbd1; padding-left: 0; padding-right: 12px; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
a { color: #1a73e8; }
footer { margin-top: 32px; color: #65676b; font-size: 14px; text-align: center; }
footer a { margin: 0 8px; }
@media (prefers-color-scheme: dark) {
  body { background: #18191a; color: #e4e6eb; }
  article { background: #242526; }
  p.meta, footer { color: #b0b3b8; }
  a { color: #8ab4f8; }
}