:root {
  --bg: #f7f7fb; --card: #ffffff; --text: #1d1b2c; --muted: #5f5c74;
  --primary: #7c72ee; --border: #e6e3f5;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121218; --card: #1c1c24; --text: #ecebf5; --muted: #a9a6c0;
    --primary: #9b8cff; --border: #2b2940; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
header a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 12px; }
.logo { width: 44px; height: 44px; border-radius: 14px;
  background: linear-gradient(135deg, #7c72ee, #a894f7); display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 22px; }
.brand { font-weight: 800; font-size: 20px; }
.lang { margin-left: auto; display: flex; gap: 8px; }
.lang a { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border);
  color: var(--muted); text-decoration: none; font-size: 14px; }
article { background: var(--card); border: 1px solid var(--border); border-radius: 24px;
  padding: 28px 24px; margin-bottom: 20px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 16px; }
a { color: var(--primary); }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
footer { text-align: center; color: var(--muted); font-size: 14px; }
footer a { margin: 0 8px; }