:root {
  --navy: #0c2340;
  --navy-2: #14345c;
  --teal: #2f8f86;
  --teal-2: #3aa89e;
  --ink: #122033;
  --muted: #5b6b7c;
  --line: #d5dde6;
  --paper: #f4f6f8;
  --card: #ffffff;
  --code: #0e1622;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 16px/1.55 "Source Sans 3", "Segoe UI", Helvetica, Arial, sans-serif;
}

a { color: var(--navy-2); }
code, pre { font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace; }
code {
  font-size: 0.9em;
  background: #e8eef4;
  padding: 0.08em 0.35em;
  border-radius: 3px;
}

.wrap {
  width: min(1360px, calc(100% - 2rem));
  margin-inline: auto;
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(12, 35, 64, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.02em;
}
.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}
.top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  align-items: center;
}
.top nav a {
  color: #d5e2ef;
  text-decoration: none;
  font-size: 0.92rem;
}
.top nav a:hover { color: #fff; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
}
.btn-solid {
  background: var(--teal);
  color: #fff;
}
.btn-solid:hover { background: var(--teal-2); color: #fff; }
.btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,0.28);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); color: #fff; }
.btn-line {
  color: var(--navy);
  border: 1px solid var(--line);
  background: #fff;
}
.btn-navy {
  background: var(--navy);
  color: #fff;
}
.btn-navy:hover { color: #fff; filter: brightness(1.08); }

.hero {
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(47, 143, 134, 0.22), transparent 55%),
    linear-gradient(165deg, var(--navy) 0%, #08182c 100%);
  color: #fff;
  padding: 4.2rem 0 4.6rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.4rem;
  align-items: center;
}
.kicker {
  color: var(--teal-2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.7rem;
}
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.hero p.lede {
  margin: 0 0 1.5rem;
  color: #c5d3e0;
  font-size: 1.12rem;
  max-width: 46rem;
}
.cta { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.meta {
  margin: 1.4rem 0 0;
  color: #9bb0c4;
  font-size: 0.92rem;
}
.hero-mark {
  display: block;
  width: min(340px, 100%);
  height: auto;
  margin: 0 0 1.15rem;
}
.hero-panel {
  background: rgba(8, 20, 36, 0.45);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 1.1rem 1.15rem 0.35rem;
}
.hero-panel h2 {
  margin: 0 0 0.7rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9bb0c4;
  font-weight: 650;
}
.flow {
  list-style: none;
  margin: 0;
  padding: 0;
}
.flow li {
  display: grid;
  grid-template-columns: 1.6rem 1fr;
  gap: 0.55rem;
  padding: 0.55rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: #dce7f1;
  font-size: 0.95rem;
}
.flow li:first-child { border-top: 0; }
.hero code {
  background: rgba(255,255,255,0.1);
  color: #e8f0f7;
}
.hero-panel code {
  background: transparent;
  color: #9ee0d8;
}

section.block { padding: 3.4rem 0; }
section.block h2 {
  margin: 0 0 0.4rem;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
}
.sub {
  margin: 0 0 1.6rem;
  color: var(--muted);
  max-width: 54rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
  margin-top: 2rem;
}
.stat {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  background: rgba(8, 20, 36, 0.35);
}
.stat b {
  display: block;
  font-size: 1.15rem;
  color: #fff;
  font-weight: 650;
}
.stat span { color: #9bb0c4; font-size: 0.85rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.15rem 1.2rem 1.25rem;
}
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
}
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.alt { background: #fff; border-block: 1px solid var(--line); }

.pipe {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.55rem;
  margin-top: 0.4rem;
}
.pipe div {
  background: var(--navy);
  color: #e8f0f7;
  border-radius: 8px;
  padding: 0.85rem 0.75rem;
  font-size: 0.88rem;
  text-align: center;
  font-weight: 600;
}
.pipe div small {
  display: block;
  margin-top: 0.25rem;
  font-weight: 500;
  color: #9bb8d0;
  font-size: 0.75rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  font-size: 0.95rem;
}
th, td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  background: #eef3f7;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
tr:last-child td { border-bottom: 0; }
td:first-child { white-space: nowrap; font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.84rem; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  align-items: start;
}
pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  background: var(--code);
  color: #e6edf3;
  font-size: 0.82rem;
  line-height: 1.5;
  border-radius: 10px;
}
pre.mermaid {
  background: transparent;
  color: inherit;
  padding: 0.5rem 0;
  overflow: visible;
  font-size: 1rem;
}
.note { color: var(--muted); font-size: 0.92rem; margin: 0.8rem 0 0; }

.media {
  margin-top: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
}
.media img,
.media video { display: block; width: 100%; height: auto; }
.demo-reel {
  max-width: 960px;
  margin-inline: auto;
  background: #0c2340;
}
.demo-reel video { background: #08182c; aspect-ratio: 16 / 9; }
#demo[hidden] { display: none !important; }
.cap {
  padding: 0.7rem 0.95rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--line);
}

.foot {
  background: var(--navy);
  color: #b7c7d6;
  padding: 2rem 0 2.4rem;
  font-size: 0.92rem;
}
.foot code {
  background: transparent;
  color: #9bb0c4;
}
.foot-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.split3 {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 1.1rem;
  align-items: start;
}
.duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
  align-items: start;
}
.gap { margin-top: 1.1rem; }
.list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
}
.list li { margin: 0.35rem 0; }
.card.span2 { grid-column: span 2; }

.nav-current { color: #fff !important; font-weight: 650; }
.page-hero {
  background:
    radial-gradient(700px 280px at 8% -20%, rgba(47, 143, 134, 0.2), transparent 55%),
    linear-gradient(165deg, var(--navy) 0%, #08182c 100%);
  color: #fff;
  padding: 2.6rem 0 2.8rem;
}
.page-hero h1 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.7rem, 3.2vw, 2.35rem);
  letter-spacing: -0.03em;
}
.page-hero .lede {
  margin: 0;
  color: #d5e6ee;
  font-size: 1.08rem;
  max-width: 46rem;
  line-height: 1.55;
}
.page-hero .lede + .lede {
  margin-top: 1rem;
}
.crumb {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  color: #9bb0c4;
}
.crumb a { color: #9ee0d8; text-decoration: none; }
.crumb a:hover { text-decoration: underline; }

.doc-layout {
  display: grid;
  grid-template-columns: 12.5rem minmax(0, 1fr);
  gap: 2.4rem;
  padding: 2.4rem 0 3.6rem;
  align-items: start;
}
.doc-toc {
  position: sticky;
  top: 80px;
  padding: 0.4rem 0;
}
.doc-toc p {
  margin: 0 0 0.55rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}
.doc-toc a {
  display: block;
  padding: 0.28rem 0;
  color: var(--navy-2);
  text-decoration: none;
  font-size: 0.9rem;
}
.doc-toc a:hover { color: var(--teal); }
.doc h2 {
  margin: 0 0 0.55rem;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}
.doc-h3 {
  margin: 1.15rem 0 0.45rem;
  font-size: 1.05rem;
}
.flow-chart {
  margin: 0 0 1.4rem;
  padding: 1.15rem 1rem 0.5rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.flow-svg {
  display: block;
  width: 100%;
  height: auto;
}
.flow-chart figcaption {
  margin: 0.4rem 0 0.7rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}
.flow-node {
  max-width: 36rem;
  margin-inline: auto;
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--navy);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  text-align: center;
}
.flow-node strong { display: block; font-size: 0.98rem; }
.flow-node small {
  display: block;
  margin-top: 0.28rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
}
.flow-node.flow-bus {
  max-width: none;
  background: #eef6f5;
  border-color: var(--teal);
}
.flow-node.sm {
  max-width: none;
  margin: 0;
  padding: 0.65rem 0.55rem;
}
.flow-node.sm strong {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}
.flow-edge {
  position: relative;
  margin: 0.15rem 0 0.2rem;
  padding: 2.35rem 0.5rem 0.35rem;
  text-align: center;
  color: var(--ink);
  font-size: 0.88rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  line-height: 1.4;
}
.flow-edge::before {
  content: "";
  position: absolute;
  top: 0.15rem;
  left: 50%;
  width: 4px;
  height: 1.35rem;
  background: var(--teal);
  transform: translateX(-50%);
  border-radius: 2px;
}
.flow-edge::after {
  content: "";
  position: absolute;
  top: 1.35rem;
  left: 50%;
  width: 0;
  height: 0;
  border-left: 11px solid transparent;
  border-right: 11px solid transparent;
  border-top: 16px solid var(--teal);
  transform: translateX(-50%);
}
.flow-fan {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.15rem;
}
.flow-fan.four { grid-template-columns: repeat(4, 1fr); }
.flow-fan.three { grid-template-columns: repeat(3, 1fr); }
.doc section { margin-bottom: 2.4rem; }
.doc p { margin: 0 0 0.9rem; color: var(--ink); }
.doc pre { margin: 0 0 1rem; }
.doc .sub { margin-bottom: 1.1rem; }

.arch {
  margin: 0;
  padding: 1.15rem 1.2rem 0.4rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.arch-k {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.35rem;
}
.arch-box {
  background: var(--navy);
  color: #e8f0f7;
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  font-weight: 650;
  font-size: 0.95rem;
}
.arch-stage p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.arch-arrow {
  margin: 0.65rem 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
.arch-bus {
  background: #0e1c30;
  color: #9ee0d8;
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.45;
}
.arch-bus span {
  display: block;
  margin-top: 0.3rem;
  color: #9bb0c4;
  font-size: 0.75rem;
}
.arch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.55rem;
  margin-top: 0.85rem;
}
.arch-grid.three { grid-template-columns: repeat(3, 1fr); }
.arch-mod {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem 0.8rem;
  background: var(--paper);
}
.arch-mod h3 {
  margin: 0 0 0.3rem;
  font-size: 0.88rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  font-weight: 650;
}
.arch-mod p { margin: 0; font-size: 0.82rem; color: var(--muted); }
.arch figcaption {
  margin: 1rem 0 0.7rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.steps {
  margin: 0 0 0.9rem;
  padding-left: 1.2rem;
  color: var(--ink);
}
.steps li { margin: 0.45rem 0; }
.foot a { color: #9ee0d8; text-decoration: none; }
.foot a:hover { text-decoration: underline; }

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .stats, .split3 { grid-template-columns: 1fr 1fr; }
  .arch-grid { grid-template-columns: repeat(2, 1fr); }
  .arch-grid.three { grid-template-columns: 1fr 1fr; }
  .flow-fan.four { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .hero-grid, .cards, .pipe, .split, .split3, .duo, .stats { grid-template-columns: 1fr; }
  .pipe { gap: 0.4rem; }
  .top nav .hide-sm { display: none; }
  .card.span2 { grid-column: span 1; }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-toc { position: static; display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; }
  .arch-grid, .arch-grid.three, .flow-fan.four, .flow-fan.three { grid-template-columns: 1fr; }
}