:root {
  --ink: #1b2430;
  --muted: #5b6572;
  --faint: #98a1ac;
  --line: #e5e9ee;
  --bg: #fbfcfd;
  --surface: #ffffff;
  --accent: #2f6fde;
  --green: #2a9e5b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
main { max-width: 720px; margin: 0 auto; padding: 0 24px 96px; }
header.site {
  max-width: 720px; margin: 0 auto; padding: 28px 24px;
  display: flex; align-items: baseline; gap: 12px;
}
header.site a.brand { font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
header.site span.tag { font-size: 11px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); }
.hero { padding: 72px 0 40px; }
.hero h1 { font-size: 44px; line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lede { font-size: 19px; color: var(--muted); max-width: 56ch; }
.badge {
  display: inline-block; margin: 28px 0 0; padding: 8px 14px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
  font-size: 13px; font-weight: 600; color: var(--muted);
}
.badge b { color: var(--green); }
.features { margin-top: 56px; display: grid; gap: 14px; }
.feature {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 20px;
}
.feature h3 { font-size: 15px; margin-bottom: 4px; }
.feature p { font-size: 14px; color: var(--muted); }
.platforms { margin-top: 40px; font-size: 14px; color: var(--muted); }
h1.doc { font-size: 30px; letter-spacing: -0.02em; margin: 48px 0 8px; }
p.updated { font-size: 13px; color: var(--faint); margin-bottom: 32px; }
article h2 { font-size: 19px; margin: 32px 0 8px; }
article p, article li { color: var(--muted); font-size: 15px; }
article ul { padding-left: 22px; margin: 8px 0; }
article a { color: var(--accent); }
footer.site {
  max-width: 720px; margin: 0 auto; padding: 32px 24px 48px;
  border-top: 1px solid var(--line);
  font-size: 13px; color: var(--faint);
  display: flex; flex-wrap: wrap; gap: 8px 20px;
}
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--ink); }
@media (max-width: 560px) { .hero h1 { font-size: 34px; } }