:root {
  --bg: #f5f5f7;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(29, 29, 31, 0.1);
  --glass: rgba(255, 255, 255, 0.78);
  --accent: #0071e3;
  --font: 'DM Sans', system-ui, sans-serif;
  --display: 'Space Grotesk', 'DM Sans', sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
}
header {
  position: sticky;
  top: 0.75rem;
  z-index: 10;
  width: min(1120px, calc(100% - 1.5rem));
  margin: 0.75rem auto 0;
  padding: 0.7rem 1.1rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  backdrop-filter: blur(16px);
}
header a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: 0.75rem;
}
header a:hover { color: var(--ink); }
header strong { font-family: var(--display); }
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}
h1 {
  font-family: var(--display);
  font-size: 2rem;
  letter-spacing: -0.04em;
  margin: 0 0 0.35rem;
}
.entity, .meta { color: var(--muted); font-size: 0.9rem; }
pre {
  white-space: pre-wrap;
  font-family: var(--font);
  line-height: 1.75;
  font-size: 1rem;
}
h2 { font-size: 1.15rem; margin-top: 2rem; }
h3 { font-size: 1rem; margin-top: 1.4rem; }
p, li { line-height: 1.65; }
ul, ol { padding-left: 1.2rem; }
.callout {
  border-left: 3px solid var(--accent);
  background: rgba(0, 113, 227, 0.06);
  padding: 0.9rem 1rem;
  margin: 1rem 0;
  font-size: 0.95rem;
  line-height: 1.5;
}
.force { font-weight: 700; margin: 1.25rem 0; }
footer {
  border-top: 1px solid var(--line);
  padding: 1.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}
footer a { color: var(--accent); }