:root {
  --bg: #FBFAF6; --bg-card: #FFFFFF; --bg-soft: #F1EFE8; --ink: #0E0E0E; --ink-2: #1F1F1E; --ink-dim: #4A4944;
  --ink-mute: #7E7C73; --line: #E2E0D8; --blue: #1B3DEC; --blue-soft: #EEF1FF;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--ink-2);
  font-family: "Geist", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16.5px; line-height: 1.6; -webkit-font-smoothing: antialiased;
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px clamp(20px, 4vw, 56px); border-bottom: 1px solid var(--line); }
.brand { font-family: "Geist Mono", ui-monospace, monospace; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink); text-decoration: none; }
.nav-links { display: flex; gap: 18px; font-size: 14px; }
.nav-links a { color: var(--ink-dim); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--ink); border-bottom: 1px solid var(--ink); }
.doc { max-width: 760px; margin: 0 auto; padding: clamp(40px, 7vw, 80px) clamp(20px, 4vw, 56px) clamp(60px, 8vw, 100px); }
.eyebrow { font-family: "Geist Mono", ui-monospace, monospace; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
h1 { margin: 12px 0 8px; font-size: clamp(32px, 4.5vw, 44px); font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; color: var(--ink); }
h2 { margin: 36px 0 10px; font-size: 20px; font-weight: 500; letter-spacing: -0.015em; color: var(--ink); }
p, li { color: var(--ink-dim); }
p { margin: 0 0 14px; }
ul { padding-left: 22px; margin: 0 0 14px; }
li { margin-bottom: 6px; }
b { color: var(--ink); font-weight: 500; }
a { color: var(--ink); }
a:hover { color: var(--blue); }
.meta { font-size: 14px; color: var(--ink-mute); margin-bottom: 28px; }
.meta .ru { color: var(--ink-mute); }
mark.todo { background: #FFF1B8; color: #6B4E00; padding: 1px 6px; border-radius: 3px; font-family: "Geist Mono", ui-monospace, monospace; font-size: 13px; }
table { width: 100%; border-collapse: collapse; margin: 8px 0 18px; font-size: 14.5px; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); color: var(--ink-dim); }
th { color: var(--ink); font-weight: 500; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
.footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding: 20px clamp(20px, 4vw, 56px); border-top: 1px solid var(--line); color: var(--ink-mute); font-size: 13px; }
.footer a { color: var(--ink-mute); text-decoration: none; }
.footer a:hover { color: var(--ink); }
@media (max-width: 600px) {
  .nav { flex-direction: column; align-items: flex-start; gap: 10px; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  td { padding: 6px 0; border-bottom: 0; }
  tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
}