:root {
  --bg: #f7f7fb;
  --card: #ffffff;
  --text: #1b1b24;
  --muted: #5d5d6e;
  --accent: #6c3df4;
  --border: #e4e4ee;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111118;
    --card: #1a1a24;
    --text: #ececf3;
    --muted: #a3a3b5;
    --accent: #a98bff;
    --border: #2b2b3a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main, footer { max-width: 720px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; gap: 12px; padding-top: 28px; padding-bottom: 8px; }
header a { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
header img { width: 44px; height: 44px; border-radius: 12px; }
header strong { font-size: 1.25rem; }
main { padding-bottom: 40px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 28px 0 8px; }
h2 { font-size: 1.2rem; margin: 32px 0 6px; }
p.lead { font-size: 1.15rem; color: var(--muted); }
.meta { color: var(--muted); font-size: .95rem; }
a { color: var(--accent); }
ul { padding-left: 1.2rem; }
.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin: 24px 0; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
.card b { display: block; margin-bottom: 4px; }
.card span { color: var(--muted); font-size: .95rem; }
.box { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px 20px; margin: 16px 0; }
ol li { margin-bottom: 6px; }
footer { border-top: 1px solid var(--border); padding-top: 16px; padding-bottom: 32px; color: var(--muted); font-size: .9rem; }
footer a { margin-right: 16px; }