/* Shared chrome for docs.html, sdk-browser.html and sdk-server.html. */
/* ── Docs page layout ── */
body {
  background: #f8fafc;
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: #0f172a;
}

.docs-header {
  background: #0f172a;
  color: #fff;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}
.docs-header h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}
.docs-header-links {
  display: flex;
  gap: 16px;
  align-items: center;
}
.docs-header-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}
.docs-header-links a:hover { color: #fff; }
.docs-header-links a.active { color: #60a5fa; }

.docs-layout {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  gap: 0;
}

/* ── Sidebar TOC ── */
.docs-toc {
  width: 240px;
  flex-shrink: 0;
  padding: 32px 0 32px 0;
  position: sticky;
  top: 53px;
  height: calc(100vh - 53px);
  overflow-y: auto;
}
.docs-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.docs-toc > ul > li {
  margin-bottom: 4px;
}
.docs-toc a {
  color: #475569;
  text-decoration: none;
  font-size: 13.5px;
  display: block;
  padding: 4px 12px;
  border-radius: 6px;
  transition: background 0.1s, color 0.1s;
}
.docs-toc a:hover {
  background: #e2e8f0;
  color: #0f172a;
}
.docs-toc .toc-section {
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  padding: 16px 12px 4px;
}
.docs-toc ul ul a {
  padding-left: 24px;
  font-size: 13px;
}

/* ── Main content ── */
.docs-content {
  flex: 1;
  min-width: 0;
  padding: 40px 40px 80px 48px;
}

.docs-content h1 {
  font-size: 32px;
  font-weight: 800;
  margin: 0 0 8px 0;
  color: #0f172a;
}
.docs-content .doc-lead {
  color: #475569;
  font-size: 16px;
  margin: 0 0 40px 0;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 24px;
}
.docs-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 48px 0 12px 0;
  padding-top: 8px;
  color: #1e293b;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 8px;
}
.docs-content h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 28px 0 8px 0;
  color: #1e293b;
}
.docs-content p, .docs-content li {
  line-height: 1.7;
  color: #334155;
  font-size: 14.5px;
}
.docs-content ul, .docs-content ol {
  padding-left: 24px;
  margin: 8px 0 16px 0;
}
.docs-content li { margin-bottom: 4px; }
.docs-content code {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 1px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  color: #0f172a;
}
.docs-content pre {
  background: #0f172a;
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 16px 0;
}
.docs-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e2e8f0;
  font-size: 13px;
}

/* ── Tables ── */
.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14px;
}
.doc-table th,
.doc-table td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: top;
}
.doc-table th {
  background: #f8fafc;
  font-weight: 600;
  color: #0f172a;
}
.doc-table th:not(:first-child),
.doc-table td:not(:first-child) {
  width: 90px;
  text-align: center;
  white-space: nowrap;
}

/* ── Callout boxes ── */
.callout {
  border-radius: 8px;
  padding: 14px 18px;
  margin: 20px 0;
  font-size: 14px;
  line-height: 1.6;
}
.callout-info {
  background: #eff6ff;
  border-left: 4px solid #3b82f6;
  color: #1e40af;
}
.callout-tip {
  background: #f0fdf4;
  border-left: 4px solid #22c55e;
  color: #166534;
}
.callout-warn {
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  color: #92400e;
}
.callout > strong:first-child { display: block; margin-bottom: 4px; }

/* ── Screenshot placeholder ── */
.screenshot-placeholder {
  background: #f1f5f9;
  border: 2px dashed #cbd5e1;
  border-radius: 10px;
  padding: 40px 24px;
  text-align: center;
  margin: 20px 0;
  color: #94a3b8;
  font-size: 13px;
}
.screenshot-placeholder span {
  display: block;
  font-size: 28px;
  margin-bottom: 8px;
}
.screenshot-placeholder img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 6px;
}

/* ── Step list ── */
.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}
.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 40px;
  margin-bottom: 20px;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  background: #2563eb;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Two-column feature grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0;
}
.feature-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 16px 18px;
}
.feature-card h4 {
  margin: 0 0 6px 0;
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
}
.feature-card p {
  margin: 0;
  font-size: 13px;
  color: #64748b;
}

#docsSearch:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59,130,246,0.15);
}

@media (max-width: 900px) {
  .docs-toc { display: none; }
  .docs-content { padding: 24px 16px 60px; }
  .feature-grid { grid-template-columns: 1fr; }
}