:root {
  --bg: #f7fbfc;
  --card: #ffffff;
  --text: #1e2a2e;
  --muted: #617177;
  --border: #d8e5e8;
  --primary: #3a8da8;
  --tile: #deeffc;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 32px 20px 80px; }
header.site { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
header.site img { width: 44px; height: 44px; }
header.site a { color: var(--primary); font-weight: 700; text-decoration: none; font-size: 18px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 6px; }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 18px; margin: 32px 0 8px; }
p, li { color: var(--text); }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
a { color: var(--primary); }
.callout {
  background: var(--tile);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 24px 0;
}
.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }
footer.site {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1719; --card: #162023; --text: #e8f0f2;
    --muted: #9bb0b6; --border: #263438; --tile: #16292f;
  }
}