:root {
  --paper: #f2f0e9;
  --paper-deep: #e5e1d5;
  --ink: #171b1a;
  --muted: #5e6561;
  --line: rgba(23, 27, 26, 0.22);
  --accent: #244fd5;
  --accent-soft: #ccd7ff;
  --signal: #c94f36;
  --green: #1e7153;
  --dark: #13201c;
  --white: #fbfaf6;
  --display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body.knowledge { --accent: #1e7153; --accent-soft: #cce2d7; --dark: #11251f; }
body.jobs { --accent: #c94f36; --accent-soft: #f1cdc4; --dark: #2c1914; }

a { color: inherit; text-underline-offset: 0.18em; }
a:hover { color: var(--accent); }
button, input, textarea { font: inherit; }
button { color: inherit; }

.site-nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font: 700 19px/1 var(--mono);
  letter-spacing: -0.04em;
  text-decoration: none;
}

.wordmark:hover { color: var(--ink); }
.wordmark-mark { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a {
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.03em;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-cta {
  border: 1px solid var(--ink);
  padding: 11px 15px;
}

.nav-cta:hover { background: var(--ink); color: var(--paper); }

.container { width: min(1180px, 92vw); margin: 0 auto; }
.narrow { width: min(780px, 92vw); margin: 0 auto; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  font: 700 12px/1.3 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid currentColor;
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  align-items: center;
  gap: 8vw;
  padding: 9vh 0 11vh;
}

.hero-copy h1,
.product-hero h1 {
  max-width: 950px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 8vw, 126px);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.88;
}

.hero-copy h1 em,
.product-hero h1 em {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}

.hero-lede {
  max-width: 690px;
  margin: 34px 0 0;
  font-size: clamp(19px, 2vw, 26px);
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid var(--ink);
  background: transparent;
  font: 700 13px/1 var(--mono);
  text-decoration: none;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, transform 120ms ease;
}

.button:hover { transform: translateY(-2px); color: inherit; }
.button.primary { background: var(--ink); color: var(--paper); }
.button.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }
.button.accent { background: var(--accent); border-color: var(--accent); color: var(--white); }
.button.accent:hover { background: var(--ink); border-color: var(--ink); }
.button.ghost { border-color: var(--line); }
.button.small { min-height: 40px; padding: 0 14px; font-size: 11px; }
.button:disabled { cursor: wait; opacity: 0.5; transform: none; }

.lens-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.hero-instrument {
  position: relative;
  min-height: 520px;
  border-left: 1px solid var(--line);
  padding-left: 4vw;
}

.orbit {
  position: absolute;
  inset: 4% 0 auto 8%;
  width: min(390px, 90%);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.orbit::before { inset: 18%; }
.orbit::after { inset: 38%; background: var(--accent); border-color: var(--accent); }

.orbit-label {
  position: absolute;
  z-index: 1;
  padding: 6px 9px;
  background: var(--paper);
  border: 1px solid var(--line);
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.orbit-label.one { top: 5%; left: 4%; }
.orbit-label.two { right: -2%; top: 42%; }
.orbit-label.three { left: 14%; bottom: 14%; }

.instrument-note {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(340px, 92%);
  padding: 22px 0 0;
  border-top: 2px solid var(--ink);
}

.instrument-note strong { font: 700 12px/1 var(--mono); text-transform: uppercase; }
.instrument-note p { margin: 12px 0 0; color: var(--muted); font-size: 15px; }

.section { padding: 110px 0; border-top: 1px solid var(--line); }
.section.dark { color: var(--paper); background: var(--dark); }
.section.accent-field { color: var(--white); background: var(--accent); }

.section-head {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: 5vw;
  align-items: start;
  margin-bottom: 70px;
}

.section-kicker { font: 700 12px/1.4 var(--mono); letter-spacing: 0.05em; text-transform: uppercase; }
.section-head h2,
.statement h2 {
  margin: 0;
  max-width: 920px;
  font-family: var(--display);
  font-size: clamp(44px, 6vw, 84px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.section-head p { max-width: 730px; margin: 25px 0 0; font-size: 20px; }

.product-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.product-card {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  padding: 44px 5vw 40px 0;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.product-card:nth-child(even) { padding-left: 5vw; border-left: 1px solid var(--line); }
.product-card:hover { color: inherit; }
.product-card .index { font: 700 11px/1 var(--mono); color: var(--accent); }
.product-card h3 { margin: auto 0 20px; font: 400 clamp(45px, 6vw, 82px)/0.95 var(--display); letter-spacing: -0.05em; }
.product-card p { max-width: 480px; margin: 0; font-size: 18px; color: var(--muted); }
.product-card .arrow { margin-top: 32px; font: 700 13px/1 var(--mono); }
.product-card:hover .arrow { color: var(--accent); }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid currentColor; }
.principle { padding: 34px 3vw 20px 0; }
.principle + .principle { padding-left: 3vw; border-left: 1px solid currentColor; }
.principle .number { font: 700 11px/1 var(--mono); opacity: 0.65; }
.principle h3 { margin: 70px 0 15px; font: 400 33px/1.05 var(--display); }
.principle p { margin: 0; max-width: 350px; opacity: 0.78; }

.product-hero { padding: 12vh 0 11vh; }
.product-hero .hero-topline { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 10vh; }
.product-hero .hero-lede { max-width: 780px; }
.product-hero h1 { max-width: 1120px; font-size: clamp(62px, 9vw, 142px); }

.proof-strip {
  display: grid;
  grid-template-columns: 1.15fr repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.proof-item { min-height: 135px; padding: 25px 26px 22px 0; }
.proof-item + .proof-item { border-left: 1px solid var(--line); padding-left: 26px; }
.proof-item span { display: block; margin-bottom: 26px; font: 700 10px/1 var(--mono); color: var(--muted); text-transform: uppercase; }
.proof-item strong { display: block; font: 500 17px/1.3 var(--sans); }

.journey { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.journey-step { min-height: 380px; padding: 32px 3vw 30px 0; }
.journey-step + .journey-step { padding-left: 3vw; border-left: 1px solid var(--line); }
.journey-step .step-id { font: 700 11px/1 var(--mono); color: var(--accent); }
.journey-step h3 { margin: 135px 0 18px; font: 400 38px/1 var(--display); letter-spacing: -0.03em; }
.journey-step p { margin: 0; color: var(--muted); }

.demo-frame {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  min-height: 520px;
  border: 1px solid rgba(255,255,255,0.24);
}
.demo-sidebar { display: flex; flex-direction: column; justify-content: space-between; padding: 35px; border-right: 1px solid rgba(255,255,255,0.24); }
.demo-sidebar h3 { margin: 0; font: 400 43px/1 var(--display); }
.demo-sidebar p { margin: 18px 0 0; opacity: 0.72; }
.demo-sidebar .demo-label { font: 700 10px/1 var(--mono); text-transform: uppercase; opacity: 0.7; }
.demo-surface { display: grid; align-content: center; gap: 18px; padding: 6vw; }
.demo-row { display: grid; grid-template-columns: 30px 1fr auto; gap: 18px; align-items: center; padding: 19px 0; border-bottom: 1px solid rgba(255,255,255,0.23); }
.demo-row .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent-soft); }
.demo-row span { font-size: 15px; }
.demo-row code { font: 700 11px/1 var(--mono); opacity: 0.7; }

.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.feature { min-height: 270px; padding: 32px 4vw 32px 0; border-bottom: 1px solid var(--line); }
.feature:nth-child(even) { padding-left: 4vw; border-left: 1px solid var(--line); }
.feature .feature-id { font: 700 10px/1 var(--mono); color: var(--accent); }
.feature h3 { margin: 62px 0 14px; font: 400 32px/1.05 var(--display); }
.feature p { max-width: 480px; margin: 0; color: var(--muted); }

.origin { display: grid; grid-template-columns: 0.6fr 1.4fr; gap: 6vw; }
.origin .label { font: 700 11px/1.4 var(--mono); text-transform: uppercase; }
.origin blockquote { margin: 0; font: 400 clamp(30px, 4vw, 52px)/1.2 var(--display); letter-spacing: -0.025em; }
.origin cite { display: block; margin-top: 30px; font: 600 13px/1.4 var(--mono); font-style: normal; opacity: 0.65; }

.related { display: grid; grid-template-columns: 1fr 1fr; }
.related a { min-height: 280px; display: flex; flex-direction: column; justify-content: space-between; padding: 38px; color: var(--paper); text-decoration: none; background: var(--dark); }
.related a + a { border-left: 1px solid rgba(255,255,255,0.3); }
.related a:hover { background: var(--accent); color: var(--white); }
.related span { font: 700 11px/1 var(--mono); text-transform: uppercase; opacity: 0.7; }
.related strong { font: 400 48px/1 var(--display); }

.site-footer { display: flex; justify-content: space-between; gap: 30px; padding: 50px 4vw; border-top: 1px solid var(--line); font: 600 11px/1.5 var(--mono); }
.site-footer div:last-child { color: var(--muted); text-align: right; }

/* Product workspaces */
.workspace { min-height: 100vh; background: #ece9e0; }
.workspace-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 68px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(242, 240, 233, 0.93);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(12px);
}
.workspace-header .workspace-product { justify-self: center; font: 700 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; }
.workspace-header .workspace-links { justify-self: end; display: flex; gap: 18px; }
.workspace-header .workspace-links a { font: 600 11px/1 var(--mono); text-decoration: none; text-transform: uppercase; }

.workspace-main { width: min(1300px, 94vw); margin: 0 auto; padding: 46px 0 100px; }
.workspace-intro { display: flex; justify-content: space-between; gap: 50px; align-items: end; padding-bottom: 35px; }
.workspace-intro h1 { margin: 0; font: 400 clamp(44px, 6vw, 75px)/0.95 var(--display); letter-spacing: -0.05em; }
.workspace-intro p { max-width: 530px; margin: 18px 0 0; color: var(--muted); }

.status-line { display: flex; align-items: center; gap: 10px; font: 700 11px/1.3 var(--mono); color: var(--muted); white-space: nowrap; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #a99572; }
.status-dot.ready { background: var(--green); }
.status-dot.error { background: var(--signal); }

.workspace-grid { display: grid; grid-template-columns: minmax(330px, 0.72fr) minmax(0, 1.28fr); gap: 22px; }
.workspace-panel { border: 1px solid var(--line); background: var(--paper); }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 15px; min-height: 57px; padding: 0 20px; border-bottom: 1px solid var(--line); }
.panel-head strong { font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.05em; }
.panel-head span { font: 600 10px/1 var(--mono); color: var(--muted); }
.panel-body { padding: 22px; }

.field { display: grid; gap: 8px; margin-bottom: 18px; }
.field label { font: 700 10px/1 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; }
.field small { color: var(--muted); font-size: 12px; }
input[type="text"], input[type="url"], textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--white);
  outline: none;
}
textarea { min-height: 132px; resize: vertical; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); }

.segmented { display: flex; gap: 0; margin-bottom: 20px; }
.segment { border: 1px solid var(--line); background: transparent; padding: 9px 13px; font: 700 10px/1 var(--mono); text-transform: uppercase; cursor: pointer; }
.segment + .segment { border-left: 0; }
.segment.active { background: var(--ink); color: var(--paper); }
.hidden { display: none !important; }

.form-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.form-note { font: 500 11px/1.4 var(--mono); color: var(--muted); }

.empty-state { min-height: 410px; display: grid; place-items: center; text-align: center; padding: 50px; }
.empty-state .empty-symbol { width: 76px; height: 76px; display: grid; place-items: center; margin: 0 auto 25px; border: 1px solid var(--line); border-radius: 50%; font: 400 34px/1 var(--display); color: var(--accent); }
.empty-state h2 { margin: 0; font: 400 33px/1.1 var(--display); }
.empty-state p { max-width: 430px; margin: 15px auto 0; color: var(--muted); }

.result-stack { display: grid; gap: 14px; }
.answer { padding: 24px; color: var(--paper); background: var(--dark); }
.answer .answer-label { margin-bottom: 25px; font: 700 10px/1 var(--mono); color: var(--accent-soft); text-transform: uppercase; }
.answer p { margin: 0; white-space: pre-wrap; font: 400 20px/1.5 var(--display); }
.answer-meta { margin-top: 22px; font: 500 10px/1.4 var(--mono); opacity: 0.62; }

.source-card, .role-card { padding: 19px 0; border-bottom: 1px solid var(--line); }
.source-card:last-child, .role-card:last-child { border-bottom: 0; }
.source-card .source-top, .role-card .role-top { display: flex; justify-content: space-between; gap: 20px; }
.source-card h3, .role-card h3 { margin: 0; font: 600 17px/1.35 var(--sans); }
.source-card h3 a, .role-card h3 a { text-decoration: none; }
.source-card p, .role-card p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
.source-meta, .role-meta { margin-top: 12px; font: 600 10px/1.5 var(--mono); color: var(--muted); }
.score { min-width: 55px; align-self: start; padding: 8px; border: 1px solid var(--line); text-align: center; font: 700 12px/1 var(--mono); }

.notice { margin-bottom: 22px; padding: 15px 17px; border-left: 3px solid var(--accent); background: var(--accent-soft); font-size: 13px; }
.notice strong { font-family: var(--mono); font-size: 11px; text-transform: uppercase; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 10; max-width: 420px; padding: 16px 18px; color: var(--paper); background: var(--dark); box-shadow: 0 12px 40px rgba(0,0,0,0.22); font: 600 12px/1.5 var(--mono); }
.toast.error { background: #6e231a; }

.stats { display: flex; gap: 22px; flex-wrap: wrap; margin: 0; }
.stat { padding-left: 14px; border-left: 2px solid var(--accent); }
.stat strong { display: block; font: 400 25px/1 var(--display); }
.stat span { display: block; margin-top: 5px; font: 600 9px/1 var(--mono); color: var(--muted); text-transform: uppercase; }

@media (max-width: 900px) {
  .site-nav { min-height: 66px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 80px 0; }
  .hero-instrument { min-height: 460px; border-left: 0; border-top: 1px solid var(--line); padding: 60px 0 0; }
  .orbit { left: 5%; top: 12%; }
  .section { padding: 80px 0; }
  .section-head, .origin { grid-template-columns: 1fr; }
  .product-grid, .principles, .journey, .proof-strip, .feature-grid { grid-template-columns: 1fr; }
  .product-card:nth-child(even), .principle + .principle, .journey-step + .journey-step, .proof-item + .proof-item, .feature:nth-child(even) { padding-left: 0; border-left: 0; }
  .principle, .journey-step, .feature, .proof-item { border-bottom: 1px solid var(--line); }
  .product-card { min-height: 330px; }
  .principle h3, .journey-step h3 { margin-top: 45px; }
  .journey-step { min-height: 280px; }
  .demo-frame { grid-template-columns: 1fr; }
  .demo-sidebar { border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.24); }
  .workspace-header { grid-template-columns: 1fr auto; }
  .workspace-header .workspace-product { display: none; }
  .workspace-intro { align-items: start; flex-direction: column; }
  .workspace-grid { grid-template-columns: 1fr; }
  .lens-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .nav-cta { padding: 9px 11px; }
  .hero-copy h1, .product-hero h1 { font-size: 54px; }
  .product-hero .hero-topline { align-items: flex-start; flex-direction: column; margin-bottom: 65px; }
  .related { grid-template-columns: 1fr; }
  .related a + a { border-left: 0; border-top: 1px solid rgba(255,255,255,0.3); }
  .site-footer { flex-direction: column; }
  .site-footer div:last-child { text-align: left; }
  .workspace-header { padding: 0 14px; }
  .workspace-header .workspace-links a:first-child { display: none; }
  .workspace-main { width: min(100% - 24px, 1300px); padding-top: 30px; }
  .panel-body { padding: 17px; }
  .empty-state { min-height: 320px; padding: 35px 20px; }
}