/* SyncHub — developer-facing light theme (PLAN-58 58a).
   Сдержанная сине-серая палитра, monospace-акценты для кода.
   Внешних шрифтов и скриптов нет: системные стеки, всё локально. */

:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --ink: #17222e;
  --muted: #5c6b7a;
  --line: #dce3ec;
  --accent: #1e66d0;
  --accent-soft: #e8f0fb;
  --ok: #178a50;
  --code-bg: #0e1b2c;
  --code-ink: #d9e4f2;
  --code-line: #24384f;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "JetBrains Mono", Menlo, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- header --- */
.top {
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  padding: 13px 28px;
  background: rgba(255, 255, 255, .95);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
}
.logo {
  font-weight: 700; font-size: 19px; color: var(--ink);
  display: inline-flex; align-items: center; gap: 9px; letter-spacing: -.01em;
}
.lg-icon { display: block; border-radius: 6px; }
.top nav { display: flex; gap: 18px; flex-wrap: wrap; }
.top nav a { color: var(--muted); padding: 3px 1px; }
.top nav a:hover { color: var(--ink); text-decoration: none; }
.top nav a.active { color: var(--accent); font-weight: 600; }

/* --- hero / landing --- */
.hero { text-align: center; padding: 74px 20px 44px; }
.hero h1 { font-size: clamp(28px, 4.6vw, 44px); margin: 0 0 14px; letter-spacing: -.02em; }
.hero .sub { color: var(--muted); font-size: 18px; max-width: 660px; margin: 0 auto 28px; }
.cta {
  display: inline-block; background: var(--accent); color: #fff; font-weight: 600;
  padding: 12px 34px; border-radius: 8px; border: 1px solid var(--accent);
}
.cta:hover { text-decoration: none; filter: brightness(1.07); }
.hero-note { margin-top: 16px; color: var(--muted); font-size: 13px; }

/* --- feature cards --- */
.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px; padding: 20px 28px 48px; max-width: 1080px; margin: 0 auto;
}
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 20px 22px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.section-title { text-align: center; margin: 26px 0 6px; }

/* --- code blocks (dark) + copy button --- */
.codewrap { position: relative; max-width: 760px; margin: 18px auto; padding: 0 20px; }
.codewrap pre { margin: 0; }
pre {
  background: var(--code-bg); color: var(--code-ink);
  border: 1px solid var(--code-line); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto;
  font: 13px/1.55 var(--mono);
}
code {
  font: 14px var(--mono);
  background: var(--accent-soft); border: 1px solid var(--line);
  border-radius: 4px; padding: 1px 5px;
}
pre code, pre a { background: none; border: 0; padding: 0; color: inherit; }
.copybtn {
  position: absolute; top: 22px; right: 32px;
  background: #1c2f47; color: var(--code-ink);
  border: 1px solid #2e4a6d; border-radius: 6px;
  padding: 4px 11px; font: 12px var(--mono); cursor: pointer;
}
.copybtn:hover { background: #25415f; }

/* --- content pages --- */
.page { max-width: 860px; margin: 0 auto; padding: 40px 20px 60px; }
.page h1 { margin-top: 0; letter-spacing: -.01em; }
.page h2 { margin-top: 36px; }
.lede { color: var(--muted); font-size: 17px; }
.page ul { padding-left: 22px; }
.page li { margin: 6px 0; }

/* --- tables (docs codes, status) --- */
table { border-collapse: collapse; width: 100%; margin: 14px 0; background: var(--surface); font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
th { background: var(--accent-soft); font-weight: 600; }
td code { white-space: nowrap; }

/* --- status page --- */
.status-ok { font-size: 19px; font-weight: 600; color: var(--ok); }
.dot {
  display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  background: var(--ok); margin-right: 8px; vertical-align: baseline;
}

/* --- blog --- */
.postlist { list-style: none; padding: 0; }
.postlist li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.postlist time { color: var(--muted); font-size: 13px; font-family: var(--mono); }
.post-meta { color: var(--muted); font-size: 14px; }
.post-meta time { font-family: var(--mono); }

/* --- footer --- */
footer {
  border-top: 1px solid var(--line); background: var(--surface);
  padding: 26px 28px; text-align: center; color: var(--muted);
}
footer .fine { font-size: 12px; }
.fine { font-size: 13px; color: var(--muted); }

/* --- responsive --- */
@media (max-width: 640px) {
  .top { padding: 12px 16px; gap: 12px; }
  .hero { padding: 50px 16px 34px; }
  .hero .sub { font-size: 16px; }
  .features { padding: 12px 16px 40px; }
  .page { padding: 28px 16px 48px; }
  .copybtn { top: 16px; right: 26px; }
}