/* =====================================================================
   MineSync — документация (docs.minesync.xyz). Статика, без сборки.
   Цвета синхронизированы с frontend/src/index.css (тёмная тема, зелёный).
   ===================================================================== */
:root {
  --background: 220 16% 6%;
  --foreground: 210 20% 95%;
  --card: 220 14% 9%;
  --primary: 142 60% 50%;
  --primary-foreground: 220 16% 6%;
  --accent: 235 85% 65%;
  --muted: 220 12% 12%;
  --muted-foreground: 215 12% 55%;
  --border: 220 12% 16%;
  --radius: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: hsl(var(--background));
  background-image:
    radial-gradient(900px 500px at 80% -10%, hsl(var(--primary) / 0.10), transparent 60%),
    radial-gradient(700px 400px at 0% 0%, hsl(var(--accent) / 0.08), transparent 55%);
  background-repeat: no-repeat;
  color: hsl(var(--foreground));
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: hsl(var(--primary)); text-decoration: none; }
a:hover { text-decoration: underline; }

.mono { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace; }

/* ---------- Шапка ---------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: hsl(var(--background) / 0.7);
  border-bottom: 1px solid hsl(var(--border));
}
.header-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: hsl(var(--foreground)); }
.brand .logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: hsl(var(--primary));
  display: grid; place-items: center;
  color: hsl(var(--primary-foreground));
}
.brand .logo svg { width: 18px; height: 18px; }
.brand:hover { text-decoration: none; }
nav.top { display: flex; align-items: center; gap: 18px; font-size: 14px; }
nav.top a { color: hsl(var(--muted-foreground)); }
nav.top a:hover { color: hsl(var(--foreground)); text-decoration: none; }

/* ---------- Контейнер ---------- */
main {
  max-width: 920px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: hsl(var(--primary));
  background: hsl(var(--primary) / 0.10);
  border: 1px solid hsl(var(--primary) / 0.25);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.updated { color: hsl(var(--muted-foreground)); font-size: 14px; margin: 0 0 40px; }

h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 44px 0 14px;
  scroll-margin-top: 80px;
}
h2 .num { color: hsl(var(--primary)); margin-right: 10px; font-variant-numeric: tabular-nums; }
h3 { font-size: 17px; font-weight: 650; margin: 26px 0 8px; }

p { margin: 0 0 14px; color: hsl(var(--foreground) / 0.92); }
ul, ol { margin: 0 0 16px; padding-left: 22px; }
li { margin: 6px 0; color: hsl(var(--foreground) / 0.92); }
strong { color: hsl(var(--foreground)); font-weight: 650; }
code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.88em;
  background: hsl(var(--muted));
  border: 1px solid hsl(var(--border));
  border-radius: 6px;
  padding: 1px 6px;
}

.lead { font-size: 18px; color: hsl(var(--foreground) / 0.85); }

hr { border: none; border-top: 1px solid hsl(var(--border)); margin: 40px 0; }

.note {
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  border-left: 3px solid hsl(var(--primary));
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 22px 0;
  font-size: 15px;
}

/* ---------- Карточки на хабе ---------- */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 36px; }
.card {
  display: block;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .18s ease, transform .18s ease;
}
.card:hover { border-color: hsl(var(--primary) / 0.55); transform: translateY(-2px); text-decoration: none; }
.card .ic {
  width: 42px; height: 42px; border-radius: 10px;
  background: hsl(var(--primary) / 0.12);
  color: hsl(var(--primary));
  display: grid; place-items: center; margin-bottom: 16px;
}
.card h3 { margin: 0 0 6px; color: hsl(var(--foreground)); font-size: 18px; }
.card p { margin: 0; color: hsl(var(--muted-foreground)); font-size: 14px; }

/* ---------- Оглавление ---------- */
.toc {
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 0 0 36px;
}
.toc .t { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: hsl(var(--muted-foreground)); margin-bottom: 10px; }
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 30px; }
.toc li { margin: 4px 0; }
.toc a { color: hsl(var(--foreground) / 0.85); font-size: 14px; }

.back { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: hsl(var(--muted-foreground)); margin-bottom: 28px; }
.back:hover { color: hsl(var(--foreground)); text-decoration: none; }

/* ---------- Подвал ---------- */
footer.site {
  border-top: 1px solid hsl(var(--border));
  margin-top: 40px;
}
.footer-inner {
  max-width: 920px; margin: 0 auto; padding: 28px 24px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  color: hsl(var(--muted-foreground)); font-size: 13px;
}
.footer-inner a { color: hsl(var(--muted-foreground)); }
.footer-inner a:hover { color: hsl(var(--foreground)); text-decoration: none; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }

@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }
  .toc ol { columns: 1; }
  nav.top { gap: 12px; font-size: 13px; }
  main { padding: 40px 20px 64px; }
}