:root {
  --bg: #0a0a10;
  --bg-elev: rgba(255, 255, 255, 0.02);
  --bg-elev-hover: rgba(129, 140, 248, 0.06);
  --ink: #cbd5e1;
  --ink-strong: #f1f5f9;
  --ink-soft: #94a3b8;
  --ink-dim: #64748b;
  --accent: #818cf8;
  --accent-soft: #c4b5fd;
  --line: rgba(129, 140, 248, 0.2);
  --line-subtle: rgba(255, 255, 255, 0.08);
  --code-bg: #0d0d14;
  --code-border: rgba(129, 140, 248, 0.15);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px; line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-soft); }

.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10, 10, 16, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-subtle);
  padding: 14px 56px;
  display: flex;
  align-items: center;
  gap: 32px;
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 600;
}

.nav-brand {
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--accent-soft);
  text-transform: uppercase;
}

.nav a {
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 12px;
}

.nav a:hover { color: var(--accent-soft); }
.nav a.active { color: var(--ink-strong); }

.nav-sep {
  flex: 1;
}

.doc-container { max-width: 1440px; margin: 0 auto; padding: 0 32px; }

.doc-header {
  background: linear-gradient(160deg, #0a0a14 0%, #1a1033 55%, #0f172a 100%);
  padding: 72px 64px 80px;
  border-bottom: 2px solid var(--accent);
  position: relative;
  border-radius: 0 0 2px 2px;
}

.doc-header::before {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.doc-breadcrumb {
  font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent-soft); margin-bottom: 20px;
}

.doc-breadcrumb a { color: var(--accent-soft); }

.doc-title {
  font-family: 'Montserrat', sans-serif; font-size: 42px; font-weight: 800;
  color: #FFFFFF; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 16px;
}

.doc-subtitle {
  font-family: 'Nunito', sans-serif; font-size: 16px; font-weight: 400;
  color: rgba(255,255,255,0.72); line-height: 1.6; max-width: 720px;
}

.doc-wordmark {
  position: absolute; top: 24px; right: 64px;
  font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 800;
  color: var(--accent-soft); letter-spacing: 0.22em;
}

.doc-content { padding: 56px 64px 80px; }

/* Cap prose at a readable line length; let tables, code, grids use full width */
.doc-content > p,
.doc-content > ul,
.doc-content > ol,
.doc-content > blockquote,
.doc-content > h3,
.doc-content > h4 { max-width: 860px; }

.doc-subtitle { max-width: 860px; }

.doc-content h1 {
  display: none;
}

.doc-content h2 {
  font-family: 'Montserrat', sans-serif; font-size: 12px; font-weight: 800;
  color: var(--accent); letter-spacing: 0.14em; text-transform: uppercase;
  margin: 44px 0 18px; padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.doc-content h3 {
  font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 700;
  color: var(--ink-strong); margin: 32px 0 14px; letter-spacing: -0.01em;
}

.doc-content h4 {
  font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 700;
  color: var(--ink-strong); margin: 24px 0 10px;
}

.doc-content p {
  margin-bottom: 16px;
  color: var(--ink);
  line-height: 1.7;
}

.doc-content strong { color: var(--ink-strong); }

.doc-content code {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 13px;
  background: var(--code-bg);
  color: var(--accent-soft);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--code-border);
}

.doc-content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  padding: 18px 20px;
  overflow-x: auto;
  margin: 20px 0;
  font-size: 13px;
  line-height: 1.55;
}

.doc-content pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
}

.doc-content ul, .doc-content ol {
  margin: 0 0 16px 24px;
  padding: 0;
}

.doc-content li { margin-bottom: 8px; line-height: 1.65; }

.doc-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 20px;
  margin: 20px 0;
  background: var(--bg-elev);
  color: var(--ink-soft);
  font-style: italic;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 13.5px;
}

.doc-content th {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-align: left;
  padding: 10px 14px;
  background: rgba(129, 140, 248, 0.08);
  color: var(--ink-strong);
  border-bottom: 2px solid var(--line);
  letter-spacing: 0.02em;
}

.doc-content td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-subtle);
  vertical-align: top;
  color: var(--ink);
}

.doc-content tr:hover { background: var(--bg-elev); }

.doc-content hr {
  border: 0;
  border-top: 1px solid var(--line-subtle);
  margin: 32px 0;
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.doc-card {
  background: var(--bg-elev);
  border: 1px solid var(--line-subtle);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 20px 22px;
  text-decoration: none; color: inherit;
  transition: background 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.doc-card:hover {
  background: var(--bg-elev-hover);
  border-left-color: var(--accent-soft);
  transform: translateY(-1px);
}

.doc-card-title {
  font-family: 'Montserrat', sans-serif; font-size: 15px; font-weight: 700;
  color: var(--ink-strong); margin-bottom: 8px; letter-spacing: -0.01em;
}

.doc-card-desc {
  font-size: 13.5px; color: var(--ink-soft); line-height: 1.55; margin-bottom: 10px;
}

.doc-card-meta {
  font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
  color: var(--ink-dim); letter-spacing: 0.02em;
}

.doc-card-arrow {
  float: right; color: var(--accent); font-size: 18px;
  transition: transform 140ms ease, color 140ms ease;
}

.doc-card:hover .doc-card-arrow { transform: translateX(3px); color: var(--accent-soft); }

.intro {
  font-size: 16px; color: var(--ink); line-height: 1.75;
  margin-bottom: 36px; max-width: 780px;
}

.intro strong { color: var(--ink-strong); }

.doc-footer {
  padding: 24px 56px 40px;
  font-size: 11px; color: var(--ink-dim);
  font-family: 'Montserrat', sans-serif;
  border-top: 1px solid var(--line-subtle);
  text-align: center;
  letter-spacing: 0.08em;
}

.doc-footer code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  padding: 0;
}

@media (max-width: 780px) {
  .nav { padding: 12px 20px; gap: 16px; overflow-x: auto; white-space: nowrap; }
  .doc-container { padding: 0 20px; }
  .doc-header { padding: 48px 28px 56px; }
  .doc-wordmark { right: 28px; top: 16px; }
  .doc-title { font-size: 32px; }
  .doc-content { padding: 40px 28px 60px; }
  .doc-footer { padding: 24px 28px 32px; }
}