:root {
  --ink: #0b172a;
  --muted: #5b6577;
  --line: #e2e8f0;
  --primary: #0b63f6;
  --primary-dark: #0649c8;
  --soft: #f5f8ff;
  --green: #16a34a;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.65;
}
a { color: var(--primary); }
img { max-width: 100%; }
.container { width: min(1040px, calc(100% - 36px)); margin: 0 auto; }

.docs-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.docs-header .container {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  font-size: 19px;
}
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.docs-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.docs-nav a {
  color: #344054;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}
.docs-nav a:hover { color: var(--primary); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 999px;
  padding: 10px 18px;
  background: var(--primary);
  color: #fff !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 8px 18px rgba(11,99,246,.22);
}
.button:hover { background: var(--primary-dark); }
.button.secondary {
  background: #fff;
  color: var(--ink) !important;
  border: 1px solid var(--line);
  box-shadow: none;
}
.docs-main { padding: 36px 0 70px; }
.breadcrumb {
  color: #7b8798;
  font-size: 12px;
  margin-bottom: 22px;
}
.breadcrumb a { color: #667085; text-decoration: none; }
.breadcrumb a:hover { color: var(--primary); }
.docs-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}
.docs-sidebar {
  position: sticky;
  top: 96px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.docs-sidebar h2 {
  margin: 0 0 10px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: #7b8798;
}
.docs-sidebar a {
  display: block;
  padding: 7px 8px;
  border-radius: 7px;
  color: #475467;
  text-decoration: none;
  font-size: 13px;
}
.docs-sidebar a:hover { background: #eef4ff; color: var(--primary); }
.docs-content h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.06;
  letter-spacing: -1.4px;
}
.docs-content .lead {
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 28px;
}
.docs-content h2 {
  margin: 34px 0 10px;
  font-size: 22px;
  letter-spacing: -.3px;
}
.docs-content h3 {
  margin: 24px 0 8px;
  font-size: 17px;
}
.docs-content p, .docs-content li { color: #475467; font-size: 15px; }
.docs-content ul, .docs-content ol { padding-left: 22px; }
.docs-content code {
  padding: 2px 5px;
  border-radius: 5px;
  background: #eef2f7;
  font-size: .9em;
}
.docs-content pre {
  overflow-x: auto;
  padding: 15px;
  border-radius: 12px;
  background: #071326;
  color: #d7e4ff;
}
.docs-content pre code { background: transparent; padding: 0; color: inherit; }
.callout {
  margin: 22px 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: #f2f7ff;
  border: 1px solid #d8e6ff;
  color: #344054;
  font-size: 13px;
}
.callout.warning { background: #fff8e1; border-color: #ffe082; color: #6d4c41; }
.docs-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0; }
.doc-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0;
}
.doc-card {
  display: block;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  color: var(--ink);
  transition: transform .18s ease, box-shadow .18s ease;
}
.doc-card:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(15,35,70,.08); }
.doc-card strong { display: block; margin-bottom: 4px; }
.doc-card span { color: var(--muted); font-size: 12px; }
.faq-item {
  margin-bottom: 10px;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.faq-item summary { cursor: pointer; font-weight: 700; }
.faq-item p { margin: 10px 0 0; }
.docs-footer {
  background: #071326;
  color: rgba(255,255,255,.65);
  padding: 30px 0;
  font-size: 12px;
}
.docs-footer .container { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; }
.docs-footer a { color: #fff; text-decoration: none; }
.docs-footer .social { display: flex; gap: 14px; flex-wrap: wrap; }
.docs-footer .social a { color: #b9d4ff; }
.docs-footer .social a:hover { color: #fff; }
@media (max-width: 800px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: static; }
  .doc-cards { grid-template-columns: 1fr; }
  .docs-nav { gap: 10px; }
  .docs-nav a:not(.button) { display: none; }
}