/* ============================================================
   JAXON.AI HUB — guided demo.

   Same restraint system as the marketing site: one flat
   near-black surface, warm off-white voice, JetBrains Mono for
   chrome, Inter for prose. Hairlines only — no shadows, no
   gradients, no rounded corners, no glass. Hover dims. One
   extremely restrained cool-blue accent, used only as the focal
   highlight, the active rail item, and the workflow line.

   Order: tokens → reset → stage → top bar → screen frame →
   HUB re-skin kit → workflow → player → captions → explore →
   static fallback → responsive.
   ============================================================ */

:root {
  --bg:      #08090B;
  --ink:     #F3F3F0;
  --muted:   rgba(243, 243, 240, 0.60);
  --dim:     rgba(243, 243, 240, 0.42);
  --faint:   rgba(243, 243, 240, 0.26);
  --line:    rgba(243, 243, 240, 0.10);
  --line-2:  rgba(243, 243, 240, 0.20);
  --panel:   rgba(243, 243, 240, 0.022);
  --panel-2: rgba(243, 243, 240, 0.045);

  /* The one accent. Cool blue, low presence. Never decorative. */
  --accent:      #9CB4E4;
  --accent-soft: rgba(156, 180, 228, 0.14);
  --accent-line: rgba(156, 180, 228, 0.42);

  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);

  --mx: clamp(20px, 4vw, 64px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.5;
  color: var(--ink); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
svg { display: block; }
::selection { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 1px solid rgba(243, 243, 240, 0.6); outline-offset: 3px; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus {
  left: 16px; top: 16px; z-index: 100;
  background: var(--bg); color: var(--ink);
  padding: 10px 14px; border: 1px solid var(--line-2);
}
.sr-only {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.mono {
  font-family: var(--font-mono); text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* ---------- Stage ---------- */
.demo-stage {
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column;
}

/* ---------- Top bar ---------- */
.demo-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding: clamp(14px, 2vh, 20px) var(--mx);
  border-bottom: 1px solid var(--line);
}
.demo-bar__brand {
  display: inline-flex; align-items: baseline; gap: 12px;
  font-family: var(--font-mono);
}
.demo-bar__type {
  font-weight: 500; font-size: clamp(13px, 1.3vw, 15px);
  letter-spacing: 0.30em; text-transform: uppercase; color: var(--ink);
}
.demo-bar__tag {
  font-size: 10.5px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--faint);
}
.demo-bar__right { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 30px); }
.demo-bar__link {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
  transition: opacity 220ms var(--ease);
}
.demo-bar__link:hover { opacity: 0.55; }
.demo-bar__cta {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink);
  border: 1px solid var(--line-2); padding: 11px 18px;
  transition: opacity 220ms var(--ease);
}
.demo-bar__cta:hover { opacity: 0.55; }
.demo-bar__cta .arr { transition: transform 240ms var(--ease); }
.demo-bar__cta:hover .arr { transform: translateX(4px); }

/* ---------- Screen frame ---------- */
.demo-viewport {
  flex: 1; min-height: 0;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(20px, 3.4vh, 44px) var(--mx);
}
.demo-screen {
  position: relative;
  width: 100%; max-width: 1180px;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-2);
  background: var(--bg);
  overflow: hidden;
}
/* Scene crossfade — opacity/transform only. */
.scene {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transition: opacity 520ms var(--ease);
}
.scene.is-active { opacity: 1; visibility: visible; }

/* ---------- HUB re-skin kit ---------- */
.hub {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: 178px 1fr 246px;
  grid-template-rows: 52px 1fr;
  grid-template-areas: 'rail top top' 'rail body activity';
  font-size: 13px;
}
.hub--narrow { grid-template-columns: 178px 1fr; grid-template-areas: 'rail top' 'rail body'; }
.hub--bare   { grid-template-columns: 1fr; grid-template-areas: 'top' 'body'; }

.hub__rail {
  grid-area: rail; border-right: 1px solid var(--line);
  padding: 18px 0; display: flex; flex-direction: column; gap: 2px;
}
.hub__brand {
  font-family: var(--font-mono); font-weight: 500; font-size: 12px;
  letter-spacing: 0.26em; text-transform: uppercase; color: var(--ink);
  padding: 0 18px 20px;
}
.hub__navitem {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.10em; text-transform: uppercase; color: var(--dim);
  padding: 9px 18px; display: flex; align-items: center; gap: 10px;
  transition: color 200ms var(--ease);
}
.hub__navitem::before {
  content: ''; width: 5px; height: 5px; background: currentColor;
  opacity: 0.5; flex: none;
}
.hub__navitem.is-active { color: var(--ink); }
.hub__navitem.is-active::before { background: var(--accent); opacity: 1; }

.hub__top {
  grid-area: top; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 0 22px;
}
.hub__title {
  font-family: var(--font-sans); font-weight: 500; font-size: 15px;
  letter-spacing: -0.01em; color: var(--ink);
}
.hub__top-meta {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint);
}

.hub__body {
  grid-area: body; overflow: hidden; padding: 22px;
  display: flex; flex-direction: column; gap: 18px;
}

.hub__activity {
  grid-area: activity; border-left: 1px solid var(--line);
  padding: 18px 18px; display: flex; flex-direction: column; gap: 14px;
}
.hub__activity h4 {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.20em; text-transform: uppercase; color: var(--faint);
  font-weight: 400;
}
.hub__log { display: flex; flex-direction: column; gap: 13px; }
.hub__log-row { display: grid; grid-template-columns: 42px 1fr; gap: 10px; }
.hub__log-row .t {
  font-family: var(--font-mono); font-size: 10px; color: var(--faint);
  letter-spacing: 0.06em;
}
.hub__log-row .x { font-size: 11.5px; color: var(--muted); line-height: 1.45; }
.hub__log-row.is-new .x { color: var(--ink); }

/* Zones (for spotlight focus). */
.hub-zone { transition: opacity 360ms var(--ease); }
.hub--spot .hub-zone { opacity: 0.30; }
.hub--spot .hub-zone.is-lit { opacity: 1; }
.hub--spot .hub-zone.is-lit { outline: 1px solid var(--accent-line); outline-offset: 4px; }

/* KPI strip — no hero-metric template: small, even, factual. */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); }
.kpi { background: var(--bg); padding: 15px 16px 17px;
  display: flex; flex-direction: column; gap: 4px; }
.kpi .l {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--faint);
}
.kpi .v {
  font-family: var(--font-mono); font-size: clamp(22px, 2.2vw, 30px);
  font-weight: 500; color: var(--ink); margin: 14px 0 7px;
  font-feature-settings: 'tnum' 1; line-height: 1;
}
.kpi .v.is-flag { color: var(--accent); }
.kpi .s { font-size: 11px; color: var(--dim); }

/* Tables — grid rows, hairline separators, mono figures. */
.tbl { border: 1px solid var(--line); }
.tbl__head, .tbl__row {
  display: grid; align-items: center; gap: 16px;
  padding: 12px 16px;
}
.tbl__head {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--faint);
  border-bottom: 1px solid var(--line);
}
.tbl__row { border-top: 1px solid var(--line); }
.tbl__row:first-of-type { border-top: 0; }
.tbl__row.is-sel { background: var(--accent-soft); }
.tbl__row .strong { color: var(--ink); }
.tbl__row .num {
  font-family: var(--font-mono); font-feature-settings: 'tnum' 1;
  color: var(--ink); text-align: right;
}
.tbl__row .sub { color: var(--dim); }

/* Status — mono label + dot. No rainbow, no stripe. */
.st {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}
.st::before { content: ''; width: 6px; height: 6px; background: var(--faint); flex: none; }
.st--active::before, .st--progress::before { background: var(--accent); }
.st--flag { color: var(--ink); }
.st--flag::before { width: 7px; height: 7px; background: var(--accent); }
.st--done::before { background: var(--muted); }

/* Panels & detail panes — flat surface, layered hairlines, a
   refined header (index tick + label + meta) over breathing
   content. No nested cards, no shadows. */
.panel { border: 1px solid var(--line); padding: 0;
  display: flex; flex-direction: column; min-height: 0; }
.panel > * { padding-left: 18px; padding-right: 18px; }
.panel__hd {
  display: flex; align-items: center; gap: 10px;
  padding-top: 13px; padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.panel__hd::before {
  content: ''; width: 14px; height: 1px; background: var(--accent-line); flex: none;
}
.panel__hd .l {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--muted);
}
.panel__hd .m {
  margin-left: auto; font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint);
}
.panel__bd { padding-top: 16px; padding-bottom: 18px;
  display: flex; flex-direction: column; gap: 13px;
  min-height: 0; overflow: auto; }
.panel__k {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--faint); margin-bottom: 14px;
}
.split { display: grid; grid-template-columns: 1.25fr 1fr; gap: 18px; min-height: 0; }
.kv { display: grid; grid-template-columns: 1fr; gap: 11px; }
.kv__row { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.kv__row .k { font-size: 11.5px; color: var(--dim); }
.kv__row .v { font-size: 12.5px; color: var(--ink); text-align: right; }
.kv__row .v.num { font-family: var(--font-mono); font-feature-settings: 'tnum' 1; }

.docpane {
  border: 1px solid var(--line-2); display: flex; flex-direction: column;
}
.docpane__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--faint);
}
.docpane__sheet {
  flex: 1; padding: 22px; display: flex; flex-direction: column; gap: 9px;
}
.docpane__sheet .line { height: 7px; background: var(--panel-2); }
.docpane__sheet .line.w1 { width: 46%; }
.docpane__sheet .line.w2 { width: 78%; }
.docpane__sheet .line.w3 { width: 62%; }
.docpane__sheet .line.tall { height: 11px; width: 38%; background: var(--line-2); }

.flow-strip { display: flex; align-items: center; gap: 0; flex-wrap: wrap; }
.flow-strip .step {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--faint);
  padding: 7px 14px; border: 1px solid var(--line);
}
.flow-strip .step.is-on { color: var(--ink); border-color: var(--line-2); }
.flow-strip .sep { width: 22px; height: 1px; background: var(--line); }

/* ---------- Workflow scene (SVG + nodes) ---------- */
.wf { position: absolute; inset: 0; padding: 38px clamp(28px, 6vw, 86px); }
.wf__kicker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.20em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 6px;
}
.wf__thread {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--faint); margin-bottom: 30px;
}
.wf__canvas { position: relative; height: 70%; }
.wf__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.wf__path { fill: none; stroke: var(--accent-line); stroke-width: 1; }
.wf__node {
  position: absolute; transform: translate(-50%, -50%);
  border: 1px solid var(--line-2); background: var(--bg);
  padding: 13px 18px; min-width: 132px;
  opacity: 0.35; transition: opacity 420ms var(--ease), border-color 420ms var(--ease);
}
.wf__node.is-on { opacity: 1; border-color: var(--accent-line); }
.wf__node .nl {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink);
}
.wf__node .ns { font-size: 11px; color: var(--dim); margin-top: 6px; }

/* ---------- Player (foot) ---------- */
.demo-foot {
  border-top: 1px solid var(--line);
  padding: 16px var(--mx) clamp(18px, 3vh, 26px);
  display: flex; flex-direction: column; gap: 14px;
}
.demo-prog { display: flex; gap: 5px; }
.demo-prog__seg {
  flex: 1; height: 2px; background: var(--line);
  position: relative; overflow: hidden; cursor: pointer;
}
.demo-prog__seg::after {
  content: ''; position: absolute; inset: 0; width: 0;
  background: var(--accent);
}
.demo-prog__seg.is-done::after { width: 100%; }
.demo-prog__seg.is-now::after { width: var(--seg, 0%); transition: width 120ms linear; }

.demo-cap {
  min-height: 3.2em;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
}
.demo-cap p {
  font-family: var(--font-sans); font-weight: 400;
  font-size: clamp(15px, 1.5vw, 19px); line-height: 1.5;
  color: var(--ink); max-width: 60ch;
  opacity: 0; transition: opacity 360ms var(--ease);
}
.demo-cap p.is-in { opacity: 1; }

.demo-ctrls {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.demo-ctrls__group { display: flex; align-items: center; gap: 6px; }
.demo-meta {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--faint); min-width: 0;
}
.demo-meta b { color: var(--muted); font-weight: 400; }
.demo-btn {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted);
  padding: 9px 14px; border: 1px solid var(--line);
  transition: opacity 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}
.demo-btn:hover { color: var(--ink); border-color: var(--line-2); }
.demo-btn[aria-pressed='true'] { color: var(--ink); border-color: var(--accent-line); }
.demo-btn[disabled] { opacity: 0.4; cursor: not-allowed; }
.demo-btn--play { color: var(--ink); border-color: var(--line-2); min-width: 96px; }

/* ---------- Explore (pause-to-explore hotspots) ---------- */
.demo-hot {
  position: absolute; transform: translate(-50%, -50%);
  display: none; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink);
  background: var(--bg); border: 1px solid var(--accent-line);
  padding: 8px 12px; cursor: pointer; z-index: 4;
  transition: opacity 200ms var(--ease);
}
.demo-hot::before {
  content: ''; width: 6px; height: 6px; background: var(--accent);
}
.demo-stage.is-explore .demo-hot { display: inline-flex; }
.demo-stage.is-explore .demo-hot:hover { opacity: 0.7; }
.demo-explore-hint {
  text-align: center; font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent);
  opacity: 0; height: 0; overflow: hidden; transition: opacity 240ms var(--ease);
}
.demo-stage.is-explore .demo-explore-hint { opacity: 1; height: auto; }
.demo-stage.is-explore .demo-cap { display: none; }

/* ---------- Static / reduced-motion fallback ---------- */
.demo-stage.is-static .demo-viewport,
.demo-stage.is-static .demo-foot { display: none; }
.demo-static {
  display: none; padding: clamp(40px, 7vh, 90px) var(--mx) 100px;
  max-width: 1180px; margin: 0 auto;
}
.demo-stage.is-static .demo-static { display: block; }
.demo-cut { margin-bottom: clamp(56px, 9vh, 110px); }
.demo-cut__meta {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--faint); margin-bottom: 14px;
}
.demo-cut__cap {
  font-family: var(--font-sans); font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.4; color: var(--ink); max-width: 30ch;
  margin-bottom: 26px; letter-spacing: -0.01em;
}
.demo-cut__screen {
  position: relative; aspect-ratio: 16 / 9;
  border: 1px solid var(--line-2); overflow: hidden;
}
.demo-cut__screen .hub, .demo-cut__screen .wf { position: absolute; }

@media (prefers-reduced-motion: reduce) {
  .scene, .demo-cap p, .wf__node, .hub-zone,
  .demo-prog__seg.is-now::after { transition: none !important; }
  *, *::before, *::after { animation: none !important; }
}

/* ---------- Intro (Scene 1 — problem statement) ---------- */
.intro {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  justify-content: center; padding: clamp(40px, 8vw, 120px);
}
.intro__k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.26em;
  text-transform: uppercase; color: var(--faint); margin-bottom: 28px;
}
.intro__line {
  font-family: var(--font-sans); font-weight: 500;
  font-size: clamp(26px, 4vw, 52px); line-height: 1.18;
  letter-spacing: -0.02em; color: var(--ink); max-width: 18ch;
}
.intro__line .dim { color: var(--muted); }
.intro__rule { width: 64px; height: 1px; background: var(--accent-line); margin: 34px 0; }
.intro__sub {
  font-family: var(--font-sans); font-size: clamp(13px, 1.4vw, 16px);
  line-height: 1.6; color: var(--muted); max-width: 46ch;
}

/* ---------- Status stepper (state machines) ---------- */
.stepper { display: flex; align-items: center; flex-wrap: wrap; gap: 0; }
.stepper__s {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--faint);
  border: 1px solid var(--line); padding: 7px 13px;
  transition: color 320ms var(--ease), border-color 320ms var(--ease);
}
.stepper__s.is-done { color: var(--muted); }
.stepper__s.is-on { color: var(--ink); border-color: var(--accent-line); }
.stepper__c { width: 18px; height: 1px; background: var(--line); }
.stepper__c.is-done { background: var(--accent-line); }
.stepper__note {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em;
  color: var(--dim); margin-top: 10px; min-height: 1.3em;
}

/* ---------- Integration & AI band (signature, recurring) ----
   The deliberate brand band: what external system this module
   touches (with data direction) and what AI does behind it.
   One accent-tinted surface, an accent hairline at the top edge
   as a marker, a single 1px structural divider between the two
   columns (not a decorative side-stripe). */
.iaib {
  display: grid; grid-template-columns: 1.15fr 1fr;
  border: 1px solid var(--line); border-top-color: var(--accent-line);
  background: var(--accent-soft);
}
.iaib__col { padding: 13px 18px 15px; display: flex; flex-direction: column; gap: 9px; }
.iaib__col + .iaib__col { border-left: 1px solid var(--line); }
.iaib__k {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
}
.iaib__row { display: flex; align-items: baseline; gap: 10px; }
.iaib__dir {
  font-family: var(--font-mono); font-size: 12px; color: var(--accent);
  flex: none; width: 12px; text-align: center;
}
.iaib__sys { display: inline-flex; align-items: center; gap: 8px; min-width: 116px; }
.iaib__sys img { width: 15px; height: 15px; object-fit: contain;
  filter: grayscale(1) brightness(1.7); opacity: 0.9; }
.iaib__sys b {
  font-family: var(--font-mono); font-weight: 500; font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink);
}
.iaib__via {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.10em;
  text-transform: uppercase; color: var(--faint);
}
.iaib__what { font-size: 11px; color: var(--muted); line-height: 1.45; }
.iaib__ai { font-size: 12px; color: var(--ink); line-height: 1.5; }

/* ---------- Collaboration (multi-actor handoff) ---------- */
.collab { display: flex; flex-direction: column; gap: 18px; height: 100%; }
.collab__lane {
  position: relative; display: grid; gap: 18px;
  grid-template-columns: repeat(3, 1fr);
}
.actor {
  border: 1px solid var(--line); padding: 16px;
  display: flex; flex-direction: column; gap: 10px;
  opacity: 0.4; transition: opacity 360ms var(--ease), border-color 360ms var(--ease);
}
.actor.is-active { opacity: 1; border-color: var(--accent-line); }
.actor__id { display: flex; align-items: center; gap: 10px; }
.actor__av {
  width: 30px; height: 30px; border: 1px solid var(--line-2);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink);
}
.actor__nm { font-size: 12.5px; color: var(--ink); }
.actor__ro {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--faint);
}
.actor__do { font-size: 11.5px; color: var(--muted); min-height: 2.6em; line-height: 1.45; }
.actor__msg {
  border: 1px solid var(--accent-line); padding: 8px 10px;
  font-size: 10.5px; color: var(--ink); opacity: 0; transform: translateY(6px);
}
.actor__msg b {
  font-family: var(--font-mono); font-weight: 400; font-size: 9px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
  display: block; margin-bottom: 4px;
}
.htoken {
  position: absolute; top: 0; left: 0; z-index: 3;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.10em;
  text-transform: uppercase; color: var(--ink);
  background: var(--bg); border: 1px solid var(--accent-line);
  padding: 7px 11px; opacity: 0; pointer-events: none;
}

/* ---------- Operations & controls (editorial montage) ------- */
.mtg-wrap { display: flex; flex-direction: column; height: 100%; gap: clamp(20px, 3vh, 32px); }
.mtg__lead {
  font-family: var(--font-sans); font-weight: 500;
  font-size: clamp(18px, 2.2vw, 28px); line-height: 1.25;
  letter-spacing: -0.015em; color: var(--ink); max-width: 24ch;
}
.mtg {
  flex: 1; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.mtg__i {
  background: var(--bg); padding: clamp(16px, 2.4vw, 26px);
  display: grid; grid-template-rows: auto 1fr auto; gap: 12px;
  opacity: 0;
}
.mtg__no {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em;
  color: var(--faint);
}
.mtg__no::after {
  content: ''; display: block; width: 18px; height: 1px;
  background: var(--accent-line); margin-top: 12px;
}
.mtg__k {
  font-family: var(--font-sans); font-weight: 500;
  font-size: clamp(15px, 1.5vw, 19px); letter-spacing: -0.01em;
  color: var(--ink); align-self: end;
}
.mtg__v { font-size: 12px; color: var(--muted); line-height: 1.5; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hub { grid-template-columns: 150px 1fr; grid-template-areas: 'rail top' 'rail body'; }
  .hub__activity { display: none; }
  .split { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  :root { --mx: 18px; }
  .demo-bar__link { display: none; }
  .demo-screen { aspect-ratio: 4 / 5; }
  .hub { grid-template-columns: 1fr; grid-template-rows: 46px 1fr;
    grid-template-areas: 'top' 'body'; font-size: 12px; }
  .hub__rail { display: none; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .demo-ctrls { flex-wrap: wrap; justify-content: center; }
  .demo-meta { width: 100%; text-align: center; order: -1; }
  .wf__node { min-width: 104px; padding: 10px 12px; }
  .collab__lane { grid-template-columns: 1fr; }
  .mtg { grid-template-columns: repeat(2, 1fr); }
  .iaib { grid-template-columns: 1fr; }
  .iaib__col + .iaib__col { border-left: 0; border-top: 1px solid var(--line); }
}