:root {
  --vp-c-brand: #6880ff;
  --vp-c-bg: #ffffff;
  --vp-c-bg-soft: #f6f8fc;
  --vp-c-text-1: #0b1f33;
  --vp-c-text-2: #66727f;
  --vp-c-divider: #e7e9eb;
  --vp-font: Lato, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --vp-code-bg: #f4f6fb;
}

* { box-sizing: border-box; }
html { font-size: 62.5%; }
body {
  margin: 0;
  font-family: var(--vp-font);
  font-size: 1.6rem;
  line-height: 1.6;
  color: var(--vp-c-text-1);
  background: var(--vp-c-bg);
}

.doc-layout {
  display: grid;
  grid-template-columns: 28rem 1fr;
  min-height: 100vh;
}

.doc-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  border-right: 1px solid var(--vp-c-divider);
  background: var(--vp-c-bg-soft);
  padding: 2.4rem 1.6rem;
}

.doc-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--vp-c-text-1);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.doc-nav { display: flex; flex-direction: column; gap: 1.6rem; }
.nav-group-title {
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--vp-c-text-2);
  margin-bottom: 0.4rem;
}
.nav-link {
  display: block;
  padding: 0.5rem 0.8rem;
  border-radius: 0.8rem;
  color: var(--vp-c-text-1);
  text-decoration: none;
  font-size: 1.4rem;
}
.nav-link:hover { background: #6880ff14; color: var(--vp-c-brand); }
.nav-link.active { background: #6880ff1a; color: var(--vp-c-brand); font-weight: 700; }

.doc-back {
  display: inline-block;
  margin-top: 2rem;
  font-size: 1.3rem;
  color: var(--vp-c-brand);
  text-decoration: none;
}

.doc-main { padding: 3.2rem 4.8rem; max-width: 96rem; }
.doc-content h1 { font-size: 3.2rem; line-height: 1.2; margin: 0 0 2rem; }
.doc-content h2 {
  font-size: 2rem;
  margin: 2.4rem 0 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--vp-c-divider);
}
.doc-content p { color: var(--vp-c-text-2); margin: 0 0 1.2rem; }
.doc-content a { color: var(--vp-c-brand); }
.doc-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: var(--vp-code-bg);
  padding: 0.15em 0.4em;
  border-radius: 0.4rem;
}
.doc-content pre {
  background: #0b1f33;
  color: #e8edf5;
  padding: 1.6rem;
  border-radius: 1.2rem;
  overflow: auto;
  font-size: 1.3rem;
  line-height: 1.5;
  margin: 1.2rem 0 2rem;
}
.doc-content pre code { background: none; padding: 0; color: inherit; }

.doc-warn {
  background: #fff8e6;
  border-left: 4px solid #f5a623;
  padding: 1.2rem 1.6rem;
  border-radius: 0.8rem;
  margin: 1.6rem 0;
  font-size: 1.4rem;
  color: var(--vp-c-text-1);
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1.4rem;
  margin: 1.2rem 0 2rem;
}
.doc-table th, .doc-table td {
  border: 1px solid var(--vp-c-divider);
  padding: 0.8rem 1rem;
  text-align: left;
}
.doc-table th { background: var(--vp-c-bg-soft); }

.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: 1.2rem;
  margin: 1.6rem 0;
}
.doc-card {
  border: 1px solid var(--vp-c-divider);
  border-radius: 1.2rem;
  padding: 1.6rem;
  background: var(--vp-c-bg-soft);
}

@media (max-width: 900px) {
  .doc-layout { grid-template-columns: 1fr; }
  .doc-sidebar { position: relative; height: auto; }
  .doc-main { padding: 2rem; }
}