:root { --bg: #ffffff; --text: #16181d; --muted: #6b7280; --line: #e5e7eb; --soft: #f6f7f9;
         --accent: #e11d1d; --yellow: #ffd600; --dark: #0d0e11; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --text: #e8eaee; --muted: #9aa1ad; --line: #262b33; --soft: #171a20; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
       font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.pub-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
           padding: 14px 24px; border-bottom: 1px solid var(--line); }
.pub-brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 1.05rem; }
.pub-brand img { border-radius: 9px; }
.pub-top nav { display: flex; align-items: center; gap: 16px; }
.pub-top nav a { color: var(--text); text-decoration: none; font-weight: 500; }
.pub-btn { display: inline-block; background: var(--accent); color: #fff !important; padding: 8px 16px; border-radius: 9px;
           text-decoration: none; font-weight: 700; }
.pub-btn.big { padding: 12px 26px; font-size: 1.05rem; margin: 8px 0 6px; }
.pub-main { max-width: 860px; margin: 0 auto; padding: 32px 20px 56px; }
.hero { text-align: center; padding: 24px 0 36px; }
.hero img { border-radius: 26px; }
.hero h1 { font-size: 2.2rem; margin: 14px 0 6px; line-height: 1.2; }
.lead { font-size: 1.15rem; max-width: 640px; margin: 0 auto 18px; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 8px 0 40px; }
.features > div { background: var(--soft); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.features h3 { margin: 0 0 6px; font-size: 1.02rem; }
.features p { margin: 0; font-size: .95rem; }
@media (max-width: 720px) { .features { grid-template-columns: 1fr; } .hero h1 { font-size: 1.8rem; } }
.prose h1 { font-size: 2rem; margin: 0 0 4px; line-height: 1.2; }
.prose h2 { font-size: 1.2rem; margin: 30px 0 8px; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.callout { background: var(--soft); border-left: 4px solid var(--yellow); padding: 12px 16px; border-radius: 8px; }
.pub-table { width: 100%; border-collapse: collapse; margin: 8px 0 12px; font-size: .94rem; display: block; overflow-x: auto; }
.pub-table th, .pub-table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.pub-table th { background: var(--soft); }
code { font: .86em ui-monospace, Menlo, monospace; background: var(--soft); border: 1px solid var(--line); padding: 1px 6px; border-radius: 5px; }
.pub-muted { color: var(--muted); }
.small { font-size: .88rem; }
.pub-foot { border-top: 1px solid var(--line); padding: 22px 24px 30px; text-align: center; color: var(--muted); font-size: .88rem; }
.pub-foot > div { margin: 4px 0; }