/* Shared chrome: header nav + documentation layout */
:root {
  --nav-bg1: #0f3c7a;
  --nav-bg2: #0d9488;
  --doc-bg: #f8fafc;
  --doc-text: #0f172a;
  --doc-muted: #64748b;
  --doc-border: #e2e8f0;
  --link: #0d9488;
  --link-hover: #0f766e;
}

.site-header {
  background: linear-gradient(105deg, var(--nav-bg1) 0%, var(--nav-bg2) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.site-nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  row-gap: 0.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  line-height: 0;
  text-decoration: none;
  white-space: nowrap;
}

.nav-brand img {
  height: 30px;
  width: auto;
  display: block;
}

.nav-brand:hover img {
  opacity: 0.9;
}

.nav-brand:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 4px;
  border-radius: 6px;
}

.nav-brand.nav-active img {
  opacity: 1;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.22));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.nav-links a.nav-active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.nav-divider {
  width: 1px;
  height: 1rem;
  background: rgba(255, 255, 255, 0.35);
  margin: 0 0.15rem;
  flex-shrink: 0;
}

/* Doc / article pages */
body.doc-page {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  background: var(--doc-bg);
  color: var(--doc-text);
  line-height: 1.6;
}

.doc-page main article {
  margin: 0;
}

.doc-main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.doc-main h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  line-height: 1.25;
}

.doc-main .lede {
  color: var(--doc-muted);
  font-size: 1.05rem;
  margin: 0 0 2rem;
}

.doc-main h2 {
  font-size: 1.2rem;
  font-weight: 650;
  margin: 2rem 0 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--doc-border);
}

.doc-main h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.doc-main h3 {
  font-size: 1.05rem;
  font-weight: 650;
  margin: 1.35rem 0 0.45rem;
  color: var(--doc-text);
}

.doc-toc {
  background: #fff;
  border: 1px solid var(--doc-border);
  border-radius: 10px;
  padding: 1rem 1.15rem;
  margin: 0 0 2rem;
}

.doc-toc strong {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--doc-muted);
  margin-bottom: 0.5rem;
}

.doc-toc ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.doc-toc li {
  margin: 0.35rem 0;
}

.doc-toc a {
  font-weight: 500;
}

.doc-callout {
  background: #fff;
  border: 1px solid var(--doc-border);
  border-radius: 10px;
  padding: 1rem 1.15rem;
  margin: 1.25rem 0;
  font-size: 0.95rem;
  color: #475569;
}

.doc-main p,
.doc-main li {
  color: #334155;
  font-size: 0.975rem;
}

.doc-main ul,
.doc-main ol {
  padding-left: 1.35rem;
}

.doc-main li {
  margin: 0.35rem 0;
}

.doc-main a {
  color: var(--link);
  font-weight: 500;
}

.doc-main a:hover {
  color: var(--link-hover);
}

.doc-main code,
.doc-main pre {
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, monospace;
  font-size: 0.85rem;
}

.doc-main code {
  background: #e2e8f0;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  color: #0f172a;
}

.doc-main pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1rem 1.1rem;
  border-radius: 10px;
  overflow-x: auto;
  line-height: 1.45;
}

.doc-main pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}

.doc-table th,
.doc-table td {
  border: 1px solid var(--doc-border);
  padding: 0.55rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.doc-table th {
  background: #f1f5f9;
  font-weight: 600;
  color: var(--doc-text);
  width: 28%;
}

.doc-note {
  background: #ecfeff;
  border: 1px solid #a5f3fc;
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  color: #0e7490;
  margin: 1rem 0;
}