/* Docs base styles */
:root {
  --bg: #0b0f14;
  --surface: #121620;
  --surface-2: #181c28;
  --text: #e8e8ec;
  --text-muted: #9aa0b0;
  --primary: #1e3c72;
  --primary-light: #2a5298;
  --accent: #3b82f6;
  --border: #23283a;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --font: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

/* Header */
.docs-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,15,20,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.docs-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.docs-logo { font-weight: 800; letter-spacing: -0.02em; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.docs-logo span { color: var(--accent); }
.docs-nav a { color: var(--text-muted); text-decoration: none; margin-left: 22px; font-size: 0.92rem; transition: color .2s; }
.docs-nav a:hover { color: var(--text); }

/* Hero */
.docs-hero {
  background: linear-gradient(135deg, #0b0f14 0%, #121620 60%, #1a2238 100%);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px 60px;
}
.docs-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.docs-hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 14px; }
.docs-hero h1 span { color: var(--accent); }
.docs-hero p { color: var(--text-muted); max-width: 640px; font-size: 1.05rem; margin: 0; }

/* Layout */
.docs-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: start;
}

/* Sidebar */
.docs-sidebar { position: sticky; top: 90px; }
.docs-sidebar h3 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin: 0 0 14px; }
.docs-sidebar ul { list-style: none; padding: 0; margin: 0; }
.docs-sidebar li + li { margin-top: 4px; }
.docs-sidebar a { display: block; padding: 8px 10px; border-radius: 8px; color: var(--text-muted); text-decoration: none; font-size: 0.92rem; transition: background .15s, color .15s; }
.docs-sidebar a:hover, .docs-sidebar a.active { background: var(--surface-2); color: var(--text); }

/* Main content */
.docs-main h2 { font-size: 1.6rem; letter-spacing: -0.02em; margin: 48px 0 16px; line-height: 1.2; }
.docs-main h2:first-of-type { margin-top: 0; }
.docs-main h3 { font-size: 1.15rem; margin: 32px 0 10px; color: var(--text); }
.docs-main p { margin: 0 0 16px; color: var(--text-muted); }
.docs-main a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* Cards / sections */
.doc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.doc-card h3 { margin-top: 0; }

/* Tables */
.doc-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.doc-table th, .doc-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.doc-table th { color: var(--text-muted); font-weight: 600; }
.doc-table td { color: var(--text); }

/* Code */
pre { background: #0d1117; border: 1px solid #23283a; border-radius: 10px; padding: 16px; overflow-x: auto; font-size: 0.85rem; line-height: 1.55; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* Lists */
.docs-main ul { padding-left: 20px; margin: 0 0 16px; }
.docs-main li { margin-bottom: 6px; color: var(--text-muted); }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border); padding: 14px 0; }
.faq-item h4 { margin: 0 0 6px; font-size: 1rem; }
.faq-item p { margin: 0; }

/* Footer */
.docs-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 900px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: static; }
}