:root {
  color-scheme: light dark;
  --bg: #f6f7fb;
  --text: #1d2433;
  --muted: #5c6678;
  --panel: #ffffff;
  --border: #dbe1ea;
  --accent: #3155b8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151f;
    --text: #eef2ff;
    --muted: #aeb8cc;
    --panel: #171d2a;
    --border: #2b3446;
    --accent: #8ba7ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

header {
  margin-bottom: 28px;
}

h1,
h2 {
  line-height: 1.2;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(32px, 5vw, 54px);
}

h2 {
  font-size: 24px;
  margin-top: 34px;
}

p,
li {
  color: var(--muted);
}

a {
  color: var(--accent);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  margin: 18px 0;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.nav a {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 13px;
  text-decoration: none;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}