:root {
    --content-width: 720px;
  --bg: #0b0d12; --card: #171b25; --border: #262c3a;
  --text: #e8ebf2; --muted: #9aa3b5; --accent: #5b8cff;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 24px; }
nav { display: flex; align-items: center; gap: 10px; padding: 16px 0 40px; }
nav a { color: var(--text); text-decoration: none; font-weight: 700; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 7px;
  background: linear-gradient(180deg, #2a5cf2, #0d2a8c);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 13px;
}
h1 { font-size: 32px; letter-spacing: -0.02em; margin-bottom: 8px; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 36px; }
h2 { font-size: 20px; margin: 32px 0 10px; }
p, li { color: var(--muted); font-size: 15.5px; margin-bottom: 12px; }
ul { padding-left: 22px; margin-bottom: 12px; }
a { color: var(--accent); }