:root {
  --ink: #11122b;
  --ink-soft: #262846;
  --paper: #f7f8fc;
  --paper-deep: #eef0f7;
  --white: #ffffff;
  --muted: #686b82;
  --line: #d9dce8;
  --line-dark: rgba(255, 255, 255, 0.16);
  --bcg: #5b5bd6;
  --bcg-deep: #4141b9;
  --bcg-soft: #aaa8f4;
  --mint: #0f9f8f;
  --mint-soft: #99ded3;
  --conflict: #d66c5b;
  --shadow: 0 24px 80px rgba(35, 37, 74, 0.12);
  --shell: min(1180px, calc(100vw - 48px));
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Manrope", "Aptos", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image: linear-gradient(rgba(91, 91, 214, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(91, 91, 214, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
textarea,
select {
  font: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--mint-soft);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(247, 248, 252, 0.9);
  border-color: var(--line);
  box-shadow: 0 8px 32px rgba(17, 18, 43, 0.06);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.brand-mark {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.site-nav > a {
  transition: color 160ms ease;
}

.site-nav > a:hover {
  color: var(--bcg);
}

.site-nav .nav-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  color: var(--white);
  background: var(--ink);
  border: 1px solid var(--ink);
}

.nav-github svg {
  width: 17px;
  fill: currentColor;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 11px 9px;
  border: 1px solid var(--line);
  background: var(--white);
}

.nav-toggle > span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 840px;
  padding: 154px 0 70px;
  overflow: hidden;
}

.hero::after {
  position: absolute;
  top: 80px;
  right: -190px;
  z-index: -1;
  width: 620px;
  height: 620px;
  content: "";
  border: 1px solid rgba(91, 91, 214, 0.1);
  border-radius: 50%;
  box-shadow: inset 0 0 0 90px rgba(91, 91, 214, 0.025), inset 0 0 0 180px rgba(91, 91, 214, 0.025);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(560px, 1.14fr);
  align-items: center;
  gap: 62px;
}

.eyebrow,
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--bcg-deep);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.signal-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 6px rgba(15, 159, 143, 0.11);
}

.hero h1,
.section h2,
.cta-section h2 {
  margin: 0;
  font-size: clamp(46px, 5.4vw, 78px);
  font-weight: 700;
  letter-spacing: -0.068em;
  line-height: 0.98;
  text-wrap: balance;
}

.hero h1 {
  max-width: 650px;
  margin-top: 25px;
}

.hero h1 span {
  position: relative;
  color: var(--bcg);
}

.hero h1 span::after {
  position: absolute;
  right: 0;
  bottom: 1px;
  left: 0;
  height: 7px;
  content: "";
  background: var(--bcg-soft);
  opacity: 0.38;
  transform: skewX(-18deg);
}

.hero-lede {
  max-width: 610px;
  margin: 27px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.hero-actions,
.cta-actions > div:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 49px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 20px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--bcg);
  box-shadow: 0 14px 32px rgba(91, 91, 214, 0.22);
}

.button-primary:hover {
  background: var(--bcg-deep);
  box-shadow: 0 18px 38px rgba(91, 91, 214, 0.28);
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 50px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.hero-facts div {
  padding: 18px 16px 0 0;
}

.hero-facts div + div {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.hero-facts dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-facts dd {
  margin: 4px 0 0;
  font-size: 12px;
  font-weight: 700;
}

.graph-instrument {
  position: relative;
  color: var(--white);
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow: var(--shadow);
}

.graph-instrument::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background: linear-gradient(135deg, rgba(91, 91, 214, 0.12), transparent 45%), radial-gradient(circle at 75% 25%, rgba(15, 159, 143, 0.12), transparent 31%);
}

.instrument-head {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 77px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-dark);
}

.instrument-head > div {
  display: grid;
  gap: 2px;
}

.instrument-kicker,
.node-id,
.readout-label,
.readout-meta,
.status-pill,
.evidence-id,
.evidence-source,
.evidence-relation {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.instrument-kicker {
  color: var(--bcg-soft);
}

.instrument-head strong {
  font-size: 13px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--mint-soft);
}

.status-pill span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint-soft);
  box-shadow: 0 0 0 5px rgba(153, 222, 211, 0.09);
}

.graph-canvas {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
}

.graph-edges {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.edge {
  fill: none;
  stroke-width: 1.5;
  stroke-dasharray: 5 5;
  vector-effect: non-scaling-stroke;
  animation: edge-flow 16s linear infinite;
}

.edge-support { stroke: rgba(170, 168, 244, 0.7); }
.edge-context { stroke: rgba(153, 222, 211, 0.52); }
.edge-conflict { stroke: rgba(214, 108, 91, 0.65); }

@keyframes edge-flow {
  to { stroke-dashoffset: -100; }
}

.belief-node {
  position: absolute;
  top: var(--y);
  left: var(--x);
  z-index: 2;
  display: grid;
  width: 146px;
  min-height: 74px;
  grid-template-columns: 1fr auto;
  align-content: center;
  gap: 2px 12px;
  padding: 12px 13px;
  color: rgba(255, 255, 255, 0.9);
  text-align: left;
  background: rgba(28, 30, 63, 0.92);
  border: 1px solid rgba(170, 168, 244, 0.3);
  cursor: pointer;
  transform: translateY(-50%);
  transition: border-color 160ms ease, background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.belief-node:hover,
.belief-node.is-active {
  border-color: var(--bcg-soft);
  background: rgba(65, 65, 145, 0.94);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.22);
  transform: translateY(calc(-50% - 3px));
}

.belief-node::after {
  position: absolute;
  top: 50%;
  right: -5px;
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 50%;
  background: var(--bcg-soft);
  box-shadow: 0 0 0 4px rgba(170, 168, 244, 0.12);
}

.node-conflict::after { background: var(--conflict); }
.node-decision::after { background: var(--mint-soft); }
.node-id { color: var(--bcg-soft); }
.node-label { grid-column: 1 / -1; font-size: 12px; font-weight: 700; }
.node-score { color: var(--mint-soft); font-family: var(--mono); font-size: 11px; }

.graph-readout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.5fr 0.75fr;
  gap: 18px 30px;
  min-height: 145px;
  padding: 20px;
  background: rgba(9, 10, 30, 0.55);
  border-top: 1px solid var(--line-dark);
}

.readout-label { color: var(--bcg-soft); }
.readout-main p { margin: 6px 0 0; color: rgba(255, 255, 255, 0.76); font-size: 13px; line-height: 1.55; }
.confidence-meter > div:first-child { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; font-size: 11px; }
.confidence-meter strong { color: var(--mint-soft); font-family: var(--mono); font-size: 20px; }
.meter-track { height: 4px; margin-top: 9px; overflow: hidden; background: rgba(255, 255, 255, 0.12); }
.meter-track span { display: block; height: 100%; background: var(--mint-soft); transition: width 240ms ease; }
.readout-meta { display: flex; grid-column: 1 / -1; align-items: center; justify-content: space-between; gap: 20px; padding-top: 12px; color: rgba(255, 255, 255, 0.45); border-top: 1px solid var(--line-dark); }

.hero-rule {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-top: 55px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-rule i {
  flex: 1;
  height: 1px;
  background: var(--line);
}

.section {
  padding: 132px 0;
}

.section-intro {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  align-items: end;
  gap: 70px;
}

.section-intro .section-tag {
  grid-column: 1 / -1;
}

.section h2,
.cta-section h2 {
  font-size: clamp(40px, 4.8vw, 66px);
}

.section-intro p,
.benchmark-heading > p,
.architecture-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.question-ledger {
  margin-top: 78px;
  border-top: 2px solid var(--ink);
}

.ledger-heading,
.ledger-row {
  display: grid;
  grid-template-columns: 1fr 190px;
  gap: 30px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.ledger-heading {
  padding: 13px 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ledger-row {
  padding: 22px 0;
  font-size: clamp(18px, 2.1vw, 27px);
  letter-spacing: -0.025em;
}

.ledger-row strong {
  color: var(--bcg);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 90px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability {
  min-height: 245px;
  padding: 27px 27px 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cap-index {
  color: var(--bcg);
  font-family: var(--mono);
  font-size: 10px;
}

.capability h3 {
  margin: 46px 0 10px;
  font-size: 18px;
  letter-spacing: -0.025em;
}

.capability p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.benchmark-section {
  color: var(--white);
  background: var(--ink);
}

.benchmark-heading {
  display: grid;
  grid-template-columns: 1fr 0.55fr;
  align-items: end;
  gap: 80px;
}

.section-tag-light { color: var(--bcg-soft); }
.benchmark-heading h2 { margin-top: 20px; }
.benchmark-heading > p { color: rgba(255, 255, 255, 0.58); }

.benchmark-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 72px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.benchmark-stats article {
  padding: 34px;
  background: var(--ink);
}

.benchmark-name {
  color: var(--bcg-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.benchmark-stats strong {
  display: block;
  margin-top: 22px;
  font-size: clamp(58px, 7vw, 92px);
  font-weight: 600;
  letter-spacing: -0.075em;
  line-height: 0.9;
}

.benchmark-stats strong span {
  margin-left: 5px;
  color: var(--bcg-soft);
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0;
}

.benchmark-stats article > p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.benchmark-foot {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 34px;
  padding-top: 16px;
  color: rgba(255, 255, 255, 0.55);
  border-top: 1px solid var(--line-dark);
  font-family: var(--mono);
  font-size: 10px;
}

.benchmark-figure,
.architecture-figure {
  margin: 64px 0 0;
  padding: 18px;
  background: var(--white);
}

.benchmark-figure img,
.architecture-figure img {
  width: 100%;
}

.benchmark-figure figcaption {
  padding: 14px 4px 0;
  color: #777a90;
  font-family: var(--mono);
  font-size: 9px;
}

.architecture-section {
  overflow: hidden;
}

.architecture-copy {
  align-items: end;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0;
  margin: 75px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pipeline li {
  position: relative;
  display: grid;
  min-height: 190px;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  padding: 26px 22px 28px 0;
}

.pipeline li + li {
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.pipeline li > span {
  color: var(--bcg);
  font-family: var(--mono);
  font-size: 10px;
}

.pipeline strong {
  font-size: 16px;
}

.pipeline p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.architecture-figure {
  border: 1px solid var(--line);
  box-shadow: 0 22px 60px rgba(38, 40, 70, 0.08);
}

.evidence-section {
  color: var(--white);
  background: var(--bcg);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 110px;
}

.evidence-copy .section-tag { color: var(--mint-soft); }
.evidence-copy h2 { margin-top: 20px; }
.evidence-copy > p { max-width: 590px; margin: 25px 0 0; color: rgba(255, 255, 255, 0.74); }
.evidence-copy blockquote { margin: 34px 0 26px; padding: 0 0 0 22px; border-left: 2px solid var(--mint-soft); font-size: 20px; line-height: 1.55; }
.evidence-copy blockquote span { display: block; margin-bottom: 7px; color: var(--mint-soft); font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; }
.text-link { display: inline-flex; align-items: center; gap: 12px; padding-bottom: 4px; border-bottom: 1px solid rgba(255, 255, 255, 0.45); font-size: 13px; font-weight: 800; }

.evidence-card {
  position: relative;
  padding: 38px;
  color: var(--ink);
  background: var(--white);
  box-shadow: 28px 28px 0 rgba(17, 18, 43, 0.15);
}

.evidence-card::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 76px;
  height: 7px;
  content: "";
  background: var(--mint);
}

.evidence-id { color: var(--bcg); }
.evidence-card > p { margin: 36px 0; font-size: 18px; line-height: 1.65; }
.evidence-source { display: flex; justify-content: space-between; gap: 20px; padding: 15px 0; color: var(--muted); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.evidence-source strong { color: var(--ink); }
.evidence-relation { display: flex; align-items: center; gap: 10px; margin-top: 20px; color: var(--mint); }
.evidence-relation span { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 6px rgba(15, 159, 143, 0.1); }

.integration-heading {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.integration-panel {
  margin-top: 68px;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
  box-shadow: var(--shadow);
}

.code-tabs {
  display: flex;
  gap: 0;
  padding: 0 20px;
  border-bottom: 1px solid var(--line-dark);
}

.code-tabs button {
  position: relative;
  padding: 19px 18px 17px;
  color: rgba(255, 255, 255, 0.48);
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
}

.code-tabs button[aria-selected="true"] { color: var(--white); }
.code-tabs button[aria-selected="true"]::after { position: absolute; right: 16px; bottom: -1px; left: 16px; height: 2px; content: ""; background: var(--bcg-soft); }
.code-panel { position: relative; min-height: 365px; padding: 38px; }
.code-panel pre { margin: 0; overflow-x: auto; }
.code-panel code { color: #e7e9f6; font-family: var(--mono); font-size: 13px; line-height: 1.75; }
.code-key { color: var(--bcg-soft); }
.code-string { color: var(--mint-soft); }
.code-comment { color: #777a98; }
.copy-button { position: absolute; top: 22px; right: 24px; z-index: 2; padding: 7px 10px; color: rgba(255, 255, 255, 0.66); background: transparent; border: 1px solid var(--line-dark); cursor: pointer; font-family: var(--mono); font-size: 10px; }

.integration-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 32px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.integration-links a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 20px;
  padding: 23px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: color 160ms ease, background-color 160ms ease;
}

.integration-links a:hover { color: var(--bcg); background: var(--white); }
.integration-links span { grid-column: 1 / -1; color: var(--muted); font-family: var(--mono); font-size: 9px; text-transform: uppercase; }
.integration-links strong { font-size: 14px; }
.integration-links i { font-style: normal; }

.cta-section {
  padding: 110px 0;
  color: var(--white);
  background: var(--ink);
}

.cta-shell {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: end;
  gap: 90px;
}

.cta-section h2 { margin-top: 18px; }
.cta-actions { min-width: 0; }
.install-command { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-width: 0; padding: 15px 16px; border: 1px solid var(--line-dark); background: rgba(255, 255, 255, 0.035); }
.install-command code { overflow: hidden; color: rgba(255, 255, 255, 0.68); font-family: var(--mono); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.install-command button { flex: 0 0 auto; color: var(--mint-soft); background: transparent; border: 0; cursor: pointer; font-family: var(--mono); font-size: 10px; }
.button-light { color: var(--ink); background: var(--white); }
.button-outline-light { color: var(--white); border-color: var(--line-dark); }

.site-footer {
  padding: 68px 0 28px;
  background: #0b0c20;
  color: rgba(255, 255, 255, 0.66);
}

.footer-grid { display: grid; grid-template-columns: 1fr 0.7fr; gap: 80px; }
.footer-brand { color: var(--white); }
.footer-grid > div:first-child > p { margin: 14px 0 0; font-family: var(--mono); font-size: 10px; letter-spacing: 0.07em; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.footer-links > div { display: grid; align-content: start; gap: 8px; }
.footer-links strong { margin-bottom: 4px; color: var(--white); font-size: 12px; }
.footer-links a { font-size: 12px; }
.footer-links a:hover { color: var(--bcg-soft); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 60px; padding-top: 22px; border-top: 1px solid var(--line-dark); font-family: var(--mono); font-size: 9px; }

.reveal {
  opacity: 1;
  transform: none;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}