:root { --ink: #14213d; --muted: #5b6475; --accent: #0f766e; --line: #e5e7eb; }
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: #fff; line-height: 1.65; }
a { color: var(--accent); }
.wrap { max-width: 780px; margin: 0 auto; padding: 0 20px; }
header { border-bottom: 1px solid var(--line); background: #fff; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; font-size: .95rem; }
.nav a:not(.brand) { text-decoration: none; }
.brand img { display: block; height: 44px; width: auto; }
.doc { padding-top: 40px; padding-bottom: 56px; }
.doc h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); line-height: 1.2; margin: 0 0 6px; }
.doc .meta { color: var(--muted); font-size: .9rem; margin: 0 0 28px; }
.doc h2 { font-size: 1.2rem; margin: 32px 0 8px; }
.doc p { margin: 0 0 14px; color: #2b3445; }
footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: .9rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }