:root {
  --bg: #f5f6fb;
  --surface: #ffffff;
  --surface-2: #eceef7;
  --text: #121526;
  --muted: #6b7088;
  --border: #dde0ec;
  --accent: #4b5bd6;
  --amber: #e8924a;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d16;
    --surface: #161a28;
    --surface-2: #1f2436;
    --text: #eaedf7;
    --muted: #8a90a8;
    --border: #2a3047;
    --accent: #6d7bf0;
    --amber: #ffb052;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
main {
  max-width: 46rem;
  margin: 2.5rem auto 4rem;
  padding: 2.5rem 2rem 3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 700; color: var(--accent); text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
h1 { font-size: 2.1rem; line-height: 1.15; margin: 1.25rem 0 0.25rem; letter-spacing: -0.02em; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 0.5rem; }
.lede { color: var(--muted); margin: 0 0 2rem; }
.updated { color: var(--muted); font-size: 0.9rem; margin: 0 0 1.75rem; }
p, li, dt, dd { font-size: 1.02rem; }
li { margin: 0.35rem 0; }
a { color: var(--accent); }
.callout {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
dt { font-weight: 600; margin-top: 1.1rem; }
dd { margin: 0.2rem 0 0; }
.links { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 2rem 0 0; }
.links a {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 600;
}
footer { color: var(--muted); font-size: 0.9rem; margin-top: 3rem; border-top: 1px solid var(--border); padding-top: 1rem; }
@media (max-width: 40rem) {
  main { margin: 0; border-radius: 0; border-left: 0; border-right: 0; padding: 1.75rem 1rem 2.5rem; }
  h1 { font-size: 1.8rem; }
}