:root {
  --bg: #0e1212;
  --bg-elev: #151a1a;
  --bg-card: #181f1f;
  --fg: #eef2f2;
  --mut: #c5cccc;
  --mut-2: #a9b2b2; /* small captions only */
  --acc: #016769;
  --acc-soft: rgba(1, 103, 105, 0.18);
  --link: #3fa3a5;
  --bd: #263030;
  --bd-strong: #314040;
  --warn: #c9a227;
  --radius: 12px;
  --max: 1080px;
  --font: Poppins, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 400 16px/1.65 var(--font);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.85rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; color: var(--fg); }
.lead { color: var(--mut); font-size: 1.15rem; max-width: 40rem; }
.lead-line { color: var(--mut); font-size: 1.05rem; max-width: 46rem; margin-bottom: 0.6rem; }
a.more { font-weight: 500; font-size: 1rem; }
.hero-note { color: var(--mut); font-size: 0.92rem; max-width: 46rem; margin: 1.1rem 0 0; }
.muted { color: var(--mut); }
.mono-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--link);
}
.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: rgba(14, 18, 18, 0.88);
  border-bottom: 1px solid var(--bd);
}
.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}
.brand img { height: 28px; width: auto; }
.nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a {
  color: var(--mut);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--fg); }
.nav-cta {
  background: var(--acc) !important;
  color: #fff !important;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  font-weight: 600 !important;
}
.nav-cta:hover { filter: brightness(1.08); text-decoration: none !important; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--acc);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 0.75rem 1.2rem;
  font: 600 1rem var(--font);
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.08); text-decoration: none; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--bd-strong);
}
.btn-ghost:hover { border-color: var(--acc); color: var(--fg); }
.hero {
  padding: 4.5rem 0 2.5rem;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 0;
}
.diagram {
  margin: 2.5rem 0 0;
  background: var(--bg-elev);
  border: 1px solid var(--bd);
  border-radius: var(--radius);
  padding: 1.4rem 1.2rem;
  overflow-x: auto;
}
.diagram-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0.6rem;
  min-width: 640px;
  flex-wrap: nowrap;
}
.diagram-node {
  flex: 1 1 0;
  background: var(--bg-card);
  border: 1px solid var(--bd-strong);
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
}
.diagram-node strong { display: block; font-weight: 600; margin: 0.25rem 0; }
.diagram-node span { color: var(--mut); font-size: 0.88rem; }
.diagram-arrow {
  display: flex;
  align-items: center;
  color: var(--link);
  font-family: var(--mono);
  font-size: 0.75rem;
  white-space: nowrap;
  padding: 0 0.15rem;
}
section.block { padding: 3.2rem 0; }
section.block + section.block { border-top: 1px solid var(--bd); }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--bd);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem;
}
.card p:last-child { margin-bottom: 0; }
.card .muted { font-size: 0.95rem; }
.preview-frame {
  margin: 1.8rem 0 0;
  border: 1px solid var(--bd);
  border-radius: var(--radius);
  overflow: hidden;
  background: #0a0d0d;
}
.preview-frame img { width: 100%; }
.preview-cap {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--mut);
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--bd);
  background: var(--bg-elev);
}
.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--link);
  background: var(--acc-soft);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}
.site-footer {
  border-top: 1px solid var(--bd);
  margin-top: 3rem;
  padding: 2rem 0 2.5rem;
  color: var(--mut);
  font-size: 0.9rem;
}
.site-footer .inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.site-footer a { color: var(--mut); }
.site-footer { color: var(--mut); }
.site-footer a:hover { color: var(--fg); }
.page-head { padding: 2.8rem 0 1.2rem; }
.page-head .lead { margin-bottom: 0; }
/* One left edge: .wrap sets the container; measure is capped on children,
   never on the container, so prose lines up with page headings. */
.prose { padding-bottom: 3rem; }
.prose > * { max-width: 46rem; }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.4rem; }
.prose ul, .prose ol { padding-left: 1.25rem; color: var(--mut); }
.prose li { margin: 0.35rem 0; }
.prose li::marker { color: var(--acc); }
.prose code, .docs-body code {
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-elev);
  border: 1px solid var(--bd);
  border-radius: 5px;
  padding: 0.05em 0.35em;
}
.prose pre, .docs-body pre {
  background: var(--bg-elev);
  border: 1px solid var(--bd);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.5;
}
.prose pre code, .docs-body pre code {
  white-space: pre;
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
}
.draft-banner {
  background: rgba(201, 162, 39, 0.12);
  border: 1px solid rgba(201, 162, 39, 0.35);
  color: #e6d48a;
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}
.faq { padding-bottom: 3rem; }
.faq > * { max-width: 46rem; }
.faq-group { font-size: 1.15rem; margin: 2.2rem 0 0.4rem; color: var(--fg); }
.summary-row {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1.4rem 0 0;
}
.summary-row li {
  background: var(--acc-soft);
  border: 1px solid var(--acc);
  color: var(--fg);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 500;
}
.faq details {
  background: var(--bg-card);
  border: 1px solid var(--bd);
  border-radius: 10px;
  padding: 0.9rem 1.05rem;
  margin: 0.6rem 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  color: var(--acc);
  font-family: var(--mono);
  margin-right: 0.55rem;
}
.faq details[open] summary::before { content: "–"; }
.faq details p { margin: 0.7rem 0 0; color: var(--mut); }
.docs-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
  padding: 2rem 0 3.5rem;
  align-items: start;
}
.docs-nav {
  position: sticky;
  top: 4.5rem;
  background: var(--bg-elev);
  border: 1px solid var(--bd);
  border-radius: var(--radius);
  padding: 1rem;
}
.docs-nav .mono-label { display: block; margin-bottom: 0.7rem; }
.docs-nav a {
  display: block;
  color: var(--mut);
  padding: 0.35rem 0.4rem;
  border-radius: 6px;
  font-size: 0.92rem;
  text-decoration: none;
}
.docs-nav a:hover, .docs-nav a[aria-current="page"] {
  color: var(--fg);
  background: var(--acc-soft);
}
.docs-body { min-width: 0; max-width: 48rem; }
.docs-body h1 { margin-top: 0; }
.docs-body .diagram { margin: 1.4rem 0 1.4rem; }
.docs-body .diagram p { color: var(--link); margin: 0; }
.docs-body .diagram-flow { min-width: 0; }
.diagram-node .mono-label { margin: 0; }
.docs-body h2 { margin-top: 2rem; padding-top: 0.4rem; border-top: 1px solid var(--bd); }
.docs-body h2:first-of-type { border-top: 0; padding-top: 0; }
.docs-body p, .docs-body li { color: var(--mut); }
.docs-body a { color: var(--link); }
.docs-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1rem 0;
}
.docs-body th, .docs-body td {
  border: 1px solid var(--bd);
  padding: 0.5rem 0.65rem;
  text-align: left;
}
.docs-body th { background: var(--bg-elev); color: var(--fg); font-weight: 600; }
.agents-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.8rem;
}
.agents-list span {
  background: var(--bg-card);
  border: 1px solid var(--bd);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.9rem;
}
@media (max-width: 800px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; }
  .diagram-flow { min-width: 0; flex-direction: column; }
  .diagram-arrow { justify-content: center; transform: rotate(90deg); padding: 0.4rem 0; }
  .site-header .inner { flex-wrap: wrap; row-gap: 0.5rem; }
  .nav { width: 100%; justify-content: flex-start; gap: 0.35rem 0.9rem; }
  .nav a { font-size: 0.88rem; padding: 0.2rem 0; }
  .nav-cta { margin-left: auto; padding: 0.35rem 0.75rem !important; }
  .hero { padding-top: 2.5rem; }
}