/* ============================================================
   Origin Physical AI — homepage
   Static, semantic, enterprise-grade. Graphite / off-white / steel
   with a single restrained signal accent.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* surfaces */
  --paper:      #f6f5f2;   /* page background (off-white) */
  --paper-2:    #ffffff;   /* card */
  --paper-3:    #efeeea;   /* subtle fill / tint sections */
  --graphite:   #14161a;   /* dark panels */
  --graphite-2: #1c1f26;

  /* ink */
  --ink:        #16181d;   /* primary text (~14:1 on paper) */
  --ink-soft:   #464e5a;   /* secondary (~8:1 on paper) */
  --steel:      #626b78;   /* muted (~5:1 on paper) */
  --on-dark:    #eef0f3;
  --on-dark-soft:#aab2bf;

  /* lines */
  --line:       #e3e2dd;
  --line-2:     #d3d2cc;
  --line-dark:  #2b2f38;

  /* signal (one accent) */
  --signal:     #2a56e8;   /* primary fill; white text ~5.3:1 */
  --signal-ink: #1c40c2;   /* accent as text on paper ~7:1 */
  --signal-wash:#eaefff;

  /* status (used sparingly) */
  --verify:     #0f7a57;
  --warn:       #9a6300;
  --danger:     #b23a30;

  /* shadows */
  --sh-sm: 0 1px 2px rgba(20,22,26,.05), 0 1px 3px rgba(20,22,26,.06);
  --sh-md: 0 8px 24px rgba(20,22,26,.07), 0 2px 6px rgba(20,22,26,.05);
  --sh-lg: 0 24px 60px rgba(20,22,26,.12), 0 8px 20px rgba(20,22,26,.07);

  /* type */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);

  /* rhythm */
  --shell: 1120px;
  --radius: 14px;
  --radius-sm: 10px;
  --section-y: clamp(64px, 9vw, 120px);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--font-display); letter-spacing: -0.02em; margin: 0; line-height: 1.12; }
p { margin: 0; }
img, svg { max-width: 100%; }

a { color: var(--signal-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
/* inline links inside body copy must be distinguishable without color (WCAG 1.4.1) */
.section__lede a, .tc p a, .proofslot__note a, p a:not(.btn):not(.truststrip__link):not(.routecard) { text-decoration: underline; text-underline-offset: 2px; }

/* focus — visible everywhere */
:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
  border-radius: 6px;
}

.skip-link {
  position: fixed; top: -60px; left: 12px; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 8px;
  transition: top .15s ease;
}
.skip-link:focus { top: 12px; text-decoration: none; }

.shell { max-width: var(--shell); margin: 0 auto; padding: 0 24px; }

.placeholder {
  color: var(--steel);
  font-style: italic;
  font-weight: 500;
}
.placeholder-note {
  display: inline-block;
  font-size: .82em;
  color: var(--steel);
  font-style: italic;
}
/* on dark surfaces, steel fails AA — use the lighter dark-mode muted token */
.section--dark .placeholder-note,
.section__lede--on-dark .placeholder-note { color: var(--on-dark-soft); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  padding: 13px 22px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--lg { padding: 16px 28px; font-size: 16px; }
.btn--primary {
  background: var(--signal); color: #fff; box-shadow: var(--sh-sm);
}
.btn--primary:hover { background: #2149c9; box-shadow: var(--sh-md); }
.btn--ghost {
  background: var(--paper-2); color: var(--ink); border-color: var(--line-2);
}
.btn--ghost:hover { border-color: var(--ink); background: #fff; }
.btn--ghost-on-dark {
  background: transparent; color: var(--on-dark); border-color: var(--line-dark);
}
.btn--ghost-on-dark:hover { border-color: var(--on-dark); background: rgba(255,255,255,.05); }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-row--center { justify-content: center; }

/* ---------- Kickers / section scaffolding ---------- */
.kicker {
  font-size: 12.5px; font-weight: 700; letter-spacing: .11em; text-transform: uppercase;
  color: var(--signal-ink); margin-bottom: 14px;
}
.kicker--on-dark { color: #8fa6ff; }

.eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: .06em;
  color: var(--steel); text-transform: uppercase; margin-bottom: 16px;
}

.section { padding: var(--section-y) 0; }
.section--tint { background: var(--paper-3); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section--dark { background: var(--graphite); color: var(--on-dark); }
.section h2 { font-size: clamp(26px, 3.4vw, 40px); max-width: 20ch; }
.section__lede {
  margin-top: 18px; max-width: 62ch; font-size: clamp(16px, 1.6vw, 18.5px);
  color: var(--ink-soft);
}
.section__lede--on-dark { color: var(--on-dark-soft); }

/* ---------- Grid helpers ---------- */
.grid { display: grid; gap: 18px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid--3 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--sh-sm);
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 15px; }

/* ============================================================
   SiteHeader
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(246,245,242,.82);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header[data-elevated] { border-bottom-color: var(--line); box-shadow: var(--sh-sm); }
.site-header__inner { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand__logo { border-radius: 6px; display: block; }
.brand__name { font-family: var(--font-display); font-size: 19px; letter-spacing: -0.01em; }
.brand__sub { color: var(--steel); font-weight: 500; font-size: 13px; }
.site-nav { display: flex; gap: 22px; margin-left: auto; }
.site-nav a { color: var(--ink-soft); font-weight: 500; font-size: 15px; }
.site-nav a:hover { color: var(--ink); text-decoration: none; }
.site-header__cta { margin-left: 8px; display: flex; align-items: center; gap: 14px; }
.site-header__login { color: var(--ink-soft); font-weight: 600; font-size: 14px; white-space: nowrap; }
.site-header__login:hover { color: var(--ink); text-decoration: none; }
.nav-mobile-only { display: none; }
@media (max-width: 960px) {
  .site-nav { display: none; }
  .site-header__cta { margin-left: auto; }
  .brand__sub { display: none; }
  .site-header__burger { display: flex; }
  /* burger active → move Log in into the menu so the header row can't overflow at 375px */
  .site-header__login { display: none; }
  .site-nav.is-open .nav-mobile-only { display: block; }
  /* burger-opened dropdown nav */
  .site-nav.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 100%; left: 0; right: 0; z-index: 45;
    background: var(--paper-2); border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line); box-shadow: var(--sh-md);
    padding: 6px 24px 14px;
  }
  .site-nav.is-open a { padding: 13px 2px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .site-nav.is-open a:last-child { border-bottom: 0; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero { padding-top: clamp(40px, 6vw, 72px); }
.hero__grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
@media (max-width: 960px) { .hero__grid { grid-template-columns: 1fr; } }
.hero h1 {
  font-size: clamp(34px, 5.4vw, 60px); letter-spacing: -0.03em;
  max-width: 15ch;
}
.hero .lede {
  margin-top: 22px; font-size: clamp(17px, 1.9vw, 21px); color: var(--ink-soft);
  max-width: 52ch; line-height: 1.55;
}
.hero__cta { margin-top: 30px; }
.hero__assurances {
  list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px;
  font-size: 13.5px; color: var(--steel);
}
.hero__assurances li { position: relative; padding-left: 18px; }
.hero__assurances li::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 8px; height: 8px; margin-top: -4px;
  border-radius: 50%; background: var(--verify);
}
.hero__cap { margin-top: 12px; font-size: 12.5px; color: var(--steel); max-width: 46ch; }

/* ---- Console (hero + reused) ---- */
.console {
  background: var(--paper-2); border: 1px solid var(--line-2); border-radius: var(--radius);
  box-shadow: var(--sh-lg); overflow: hidden; font-size: 13px;
}
.console__bar {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-bottom: 1px solid var(--line);
  background: linear-gradient(var(--paper-3), var(--paper-2));
}
.console__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--verify); box-shadow: 0 0 0 3px rgba(15,122,87,.16); }
.console__title { font-weight: 700; font-family: var(--font-display); letter-spacing: -0.01em; }
.console__scope { color: var(--steel); }
.pill {
  margin-left: auto; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 999px; background: var(--paper-3); color: var(--ink-soft); border: 1px solid var(--line);
}
.pill--live { background: #eaf6f0; color: var(--verify); border-color: #bfe3d3; }
.pill--verify { background: #eaf6f0; color: var(--verify); border-color: #bfe3d3; }

.console__grid { display: grid; grid-template-columns: 1.15fr 1fr; grid-auto-rows: auto; gap: 1px; background: var(--line); }
.panel { background: var(--paper-2); padding: 14px; }
.panel--feed { grid-row: span 2; }
.panel__label {
  font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--steel); margin-bottom: 10px;
}

/* floor schematic */
.floormap {
  position: relative; height: 118px; border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(20,22,26,.04) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(0deg, rgba(20,22,26,.04) 1px, transparent 1px) 0 0 / 22px 22px,
    var(--paper-3);
  border: 1px solid var(--line); overflow: hidden;
}
.floormap__zone {
  position: absolute; font-size: 10px; font-weight: 600; color: var(--ink-soft);
  background: rgba(255,255,255,.72); padding: 2px 5px; border-radius: 4px; border: 1px solid var(--line);
}
.floormap__zone--a { top: 10px; left: 12px; }
.floormap__zone--b { bottom: 10px; right: 12px; }
.floormap__nogo {
  position: absolute; top: 12px; right: 14px; font-size: 9.5px; font-weight: 700; color: var(--danger);
  background: repeating-linear-gradient(45deg, rgba(178,58,48,.10) 0 6px, rgba(178,58,48,.03) 6px 12px);
  border: 1px dashed rgba(178,58,48,.5); padding: 8px 10px; border-radius: 6px;
}
.floormap__robot { position: absolute; left: 38%; top: 54%; width: 12px; height: 12px; border-radius: 3px; background: var(--signal); box-shadow: 0 0 0 4px rgba(42,86,232,.18); }
.floormap__person { position: absolute; left: 62%; top: 38%; width: 9px; height: 9px; border-radius: 50%; background: var(--warn); box-shadow: 0 0 0 4px rgba(154,99,0,.16); }
.floormap__path { position: absolute; left: 42%; top: 58%; width: 24%; height: 2px; background: linear-gradient(90deg, var(--signal), transparent); }

.tags { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 6px; }
.tags li { font-size: 12px; color: var(--ink-soft); padding: 5px 9px; background: var(--paper-3); border-radius: 6px; border: 1px solid var(--line); }
.tag--warn { color: var(--warn); border-color: #ecd9ad; background: #fbf4e3; }
.tag--nogo { color: var(--danger); border-color: #edc6c2; background: #fbecea; }

/* task plan steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.step {
  display: flex; align-items: baseline; gap: 8px; font-size: 12.5px;
  padding: 7px 10px; border-radius: 7px; border: 1px solid var(--line); background: var(--paper-3);
  color: var(--steel);
}
.step span { font-weight: 700; min-width: 52px; }
.step b { font-weight: 500; color: var(--ink-soft); }
.step--done { color: var(--verify); border-color: #cbe6da; background: #f0faf5; }
.step--done b { color: var(--ink-soft); }
.step--active {
  color: var(--signal-ink); border-color: #bcccff; background: var(--signal-wash);
  box-shadow: 0 0 0 1px rgba(42,86,232,.15);
}
.step--active b { color: var(--signal-ink); }

.robotstate { margin-top: 12px; display: grid; gap: 5px; font-size: 11.5px; color: var(--steel); }
.robotstate__label { font-weight: 600; color: var(--ink-soft); }
.meter { display: block; height: 6px; border-radius: 999px; background: var(--paper-3); border: 1px solid var(--line); overflow: hidden; }
.meter__fill { display: block; height: 100%; background: linear-gradient(90deg, var(--signal), #5f86ff); }

/* logs */
.log { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.log li { font-size: 12px; color: var(--ink-soft); padding-left: 14px; position: relative; line-height: 1.5; }
.log time { color: var(--steel); font-variant-numeric: tabular-nums; margin-right: 6px; }
.log li::before { content: ""; position: absolute; left: 0; top: 7px; width: 7px; height: 7px; border-radius: 50%; background: var(--steel); }
.log--ok::before { background: var(--verify); }
.log--warn::before { background: var(--warn); }
.log--esc::before { background: var(--danger); }

.console--compact { box-shadow: var(--sh-md); }
.console--compact .console__bar { padding: 10px 12px; }

/* ---- ProofBar ---- */
.proofbar { margin-top: clamp(40px, 6vw, 72px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.proofbar__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; padding: 18px 24px; }
.proofbar__lead { font-weight: 600; color: var(--ink); font-size: 14px; }
.proofbar__items { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 0; padding: 0; }
.proofbar__items li {
  font-size: 12.5px; color: var(--ink-soft); background: var(--paper-3);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px;
}

/* ============================================================
   Problem
   ============================================================ */
.problem__grid { margin-top: 34px; }

.compare {
  margin-top: 34px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: stretch;
}
@media (max-width: 760px) { .compare { grid-template-columns: 1fr; } .compare__arrow { transform: rotate(90deg); } }
.compare__col { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--sh-sm); }
.compare__col--before { border-color: #e7cdc9; background: #fdf7f6; }
.compare__col--after { border-color: #c9e2d6; background: #f4faf7; }
.compare__tag { font-weight: 700; font-family: var(--font-display); margin-bottom: 12px; }
.compare__list { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 8px; }
.compare__list li { font-size: 14px; color: var(--ink-soft); padding-left: 20px; position: relative; }
.compare__col--before .compare__list li::before { content: "×"; position: absolute; left: 0; color: var(--danger); font-weight: 700; }
.compare__col--after .compare__list li::before { content: "✓"; position: absolute; left: 0; color: var(--verify); font-weight: 700; }
.compare__verdict { font-weight: 700; font-size: 14px; margin: 0; }
.compare__verdict--bad { color: var(--danger); }
.compare__verdict--good { color: var(--verify); }
.compare__arrow { display: flex; align-items: center; justify-content: center; color: var(--steel); font-size: 26px; }

/* ============================================================
   Product definition — inputs / diagram / outputs
   ============================================================ */
.io {
  margin-top: 34px; display: grid; grid-template-columns: 1fr 260px 1fr; gap: 24px; align-items: start;
}
@media (max-width: 960px) { .io { grid-template-columns: 1fr; } .io__diagram { order: -1; margin: 0 auto; } }
.io__head { font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: .04em; text-transform: uppercase; color: var(--signal-ink); margin-bottom: 12px; }
.io__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.io__list li { font-size: 15px; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; box-shadow: var(--sh-sm); }
.io__diagram { text-align: center; }
.io__diagram figcaption { margin-top: 10px; font-size: 12.5px; color: var(--steel); max-width: 30ch; margin-inline: auto; }

.archsvg { width: 100%; height: auto; }
.arch__node rect { fill: var(--paper-2); stroke: var(--line-2); stroke-width: 1.2; }
.arch__node text { font-family: var(--font-sans); font-size: 11px; fill: var(--ink); text-anchor: middle; font-weight: 600; }
.arch__node .arch__muted { fill: var(--steel); font-weight: 500; font-size: 9.5px; }
.arch__node--core rect { fill: #fbfcff; stroke: #c6d3ff; }
.arch__core-label { fill: var(--signal-ink) !important; font-family: var(--font-display) !important; font-size: 12px !important; font-weight: 700 !important; }
.arch__chips rect { fill: var(--signal-wash); stroke: #bcccff; }
.arch__chips text { fill: var(--signal-ink); font-size: 11px; font-weight: 700; }
.arch__flow { stroke: var(--steel); stroke-width: 1.5; marker-end: none; }

/* ============================================================
   How it works — the loop
   ============================================================ */
.loop { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: loop; }
@media (max-width: 900px) { .loop { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .loop { grid-template-columns: 1fr; } }
.loop__step {
  position: relative; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--sh-sm); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.loop__step h3 { font-size: 19px; margin: 10px 0 8px; }
.loop__step p { font-size: 14.5px; color: var(--ink-soft); }
.loop__num { font-family: var(--font-display); font-weight: 700; font-size: 13px; color: var(--signal-ink); letter-spacing: .1em; }
.loop__step::after {
  content: ""; position: absolute; right: -11px; top: 50%; width: 18px; height: 18px; margin-top: -9px;
  background: var(--paper); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  transform: rotate(-45deg); z-index: 1;
}
.loop__step:last-child::after { display: none; }
@media (max-width: 900px) { .loop__step::after { display: none; } }
/* scroll-highlight (progressive enhancement) */
.loop__step.is-active {
  border-color: #bcccff; box-shadow: var(--sh-md); transform: translateY(-3px);
}
.loop__step.is-active .loop__num { color: var(--signal); }

/* ============================================================
   Product demo (dark)
   ============================================================ */
.demo { margin-top: 36px; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
@media (max-width: 900px) { .demo { grid-template-columns: 1fr; } }
.demo__flow { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; counter-reset: d; }
.demo__flow li {
  color: var(--on-dark-soft); font-size: 15px; padding: 14px 16px; border-radius: var(--radius-sm);
  background: var(--graphite-2); border: 1px solid var(--line-dark);
}
.demo__phase {
  display: inline-block; min-width: 74px; font-weight: 700; font-size: 11px; letter-spacing: .06em;
  text-transform: uppercase; color: #8fa6ff; margin-right: 10px;
}
.demo__panel figcaption { margin-top: 10px; font-size: 12.5px; color: var(--on-dark-soft); }
.ticket { list-style: none; margin: 0; padding: 12px 14px; display: grid; gap: 8px; }
.ticket li { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; border-bottom: 1px dashed var(--line); padding-bottom: 8px; }
.ticket li:last-child { border-bottom: 0; padding-bottom: 0; }
.ticket span { color: var(--steel); }
.ticket b { color: var(--ink); font-weight: 600; text-align: right; }
.section--dark .cta-row { margin-top: 32px; }

/* ============================================================
   Use cases
   ============================================================ */
.usecase { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--sh-sm); }
.usecase h3 { font-size: 18px; margin-bottom: 12px; }
.usecase p { font-size: 14px; color: var(--ink-soft); margin-bottom: 8px; }
.usecase p b { color: var(--ink); font-weight: 700; margin-right: 4px; }
.usecase__out b { color: var(--signal-ink); }

/* ============================================================
   Metrics
   ============================================================ */
.metrics { margin: 34px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 860px) { .metrics { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .metrics { grid-template-columns: 1fr; } }
.metric { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--sh-sm); }
.metric dt { font-size: 13px; font-weight: 600; color: var(--steel); text-transform: uppercase; letter-spacing: .04em; }
.metric dd { margin: 0; }
.metric__val { font-family: var(--font-display); font-size: 30px; margin: 8px 0 6px; color: var(--ink); }
.metric__val.placeholder { font-size: 20px; }
.metric__def { font-size: 13.5px; color: var(--ink-soft); }

/* ============================================================
   Deployment timeline
   ============================================================ */
.timeline { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
@media (max-width: 900px) { .timeline { grid-template-columns: 1fr; } }
.timeline__item { position: relative; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--sh-sm); }
.timeline__num {
  display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 50%;
  background: var(--signal); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 14px; margin-bottom: 12px;
}
.timeline__item h3 { font-size: 16px; margin-bottom: 6px; }
.timeline__item p { font-size: 13.5px; color: var(--ink-soft); }

/* ============================================================
   Trust & safety
   ============================================================ */
.trust { margin-top: 34px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 28px; align-items: start; }
@media (max-width: 900px) { .trust { grid-template-columns: 1fr; } }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .checklist { grid-template-columns: 1fr; } }
.checklist li { position: relative; padding: 4px 4px 4px 30px; }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 50%;
  background: #eaf6f0; color: var(--verify); border: 1px solid #bfe3d3;
  display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 800;
}
.checklist h3 { font-size: 15.5px; margin-bottom: 3px; }
.checklist p { font-size: 13.5px; color: var(--ink-soft); }
.auditpanel figcaption { margin-top: 10px; font-size: 12.5px; color: var(--steel); }
.log--audit li b { color: var(--ink); font-weight: 600; }

/* ============================================================
   Team
   ============================================================ */
.teamcard { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--sh-sm); text-align: center; }
.teamcard__avatar {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 14px;
  background: radial-gradient(circle at 30% 30%, var(--paper-3), var(--line-2));
  border: 1px solid var(--line);
}
.teamcard h3 { font-size: 17px; margin-bottom: 4px; }
.teamcard__role { font-size: 13.5px; color: var(--signal-ink); margin-bottom: 10px; }
.teamcard__bio { font-size: 13.5px; color: var(--ink-soft); }
.team__note { margin-top: 22px; font-size: 14px; color: var(--steel); }

/* ============================================================
   AudienceCTA
   ============================================================ */
.audience { border-top: 1px solid var(--line); background: var(--paper-3); }
.audience__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; padding: 26px 24px; }
.audience__q { font-family: var(--font-display); font-weight: 700; font-size: 18px; }
.audience__chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-family: var(--font-sans); font-weight: 600; font-size: 14px; cursor: pointer;
  padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--paper-2); color: var(--ink);
  transition: border-color .12s ease, background .12s ease, transform .12s ease;
}
.chip:hover { border-color: var(--signal); background: var(--signal-wash); transform: translateY(-1px); }

/* ============================================================
   Final CTA
   ============================================================ */
.finalcta { text-align: center; background: var(--graphite); color: var(--on-dark); }
.finalcta__inner { max-width: 720px; }
.finalcta h2 { font-size: clamp(28px, 4vw, 44px); margin: 0 auto; max-width: 18ch; }
.finalcta__sub { margin: 18px auto 30px; color: var(--on-dark-soft); font-size: 18px; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--paper-2); border-top: 1px solid var(--line); padding: 48px 0 28px; }
.site-footer__inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }
@media (max-width: 700px) { .site-footer__inner { grid-template-columns: 1fr; } }
.site-footer__brand p { margin-top: 12px; color: var(--ink-soft); font-size: 14px; max-width: 34ch; }
.site-footer__nav { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.site-footer__h { font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--steel); margin-bottom: 10px; }
.site-footer__nav a { display: block; color: var(--ink-soft); font-size: 14px; padding: 4px 0; }
.site-footer__nav a:hover { color: var(--ink); text-decoration: none; }
.site-footer__legal { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; color: var(--steel); }
.site-footer__legal-links { display: inline-flex; gap: 18px; flex-wrap: wrap; }
.site-footer__legal-links a { color: var(--steel); }
.site-footer__legal-links a:hover { color: var(--ink); }

/* honeypot — visually removed but present for bots; never shown to humans/SR */
.hp-field { position: absolute !important; left: -9999px !important; top: auto; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ============================================================
   LeadFormModal
   ============================================================ */
.modal {
  border: none; border-radius: 16px; padding: 0; width: min(520px, calc(100vw - 32px));
  box-shadow: var(--sh-lg); color: var(--ink); background: var(--paper-2);
}
.modal::backdrop { background: rgba(20,22,26,.5); -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px); }
.modal__form { padding: 28px; position: relative; }
.modal__close {
  position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--paper-2); font-size: 20px; line-height: 1; cursor: pointer; color: var(--ink-soft);
}
.modal__close:hover { background: var(--paper-3); }
.modal__title { font-size: 23px; padding-right: 30px; }
.modal__sub { margin-top: 8px; color: var(--ink-soft); font-size: 14.5px; }
.field { margin-top: 16px; display: grid; gap: 6px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.field label span { color: var(--danger); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 15px; padding: 11px 12px; border-radius: 9px; border: 1px solid var(--line-2);
  background: #fff; color: var(--ink); width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--signal); outline: none; box-shadow: 0 0 0 3px rgba(42,86,232,.18); }
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 3px rgba(178,58,48,.15); }
.field__error { color: var(--danger); font-size: 13.5px; margin-top: 10px; font-weight: 600; }
.modal__actions { margin-top: 22px; display: flex; gap: 10px; }
.modal__note { margin-top: 14px; font-size: 12.5px; color: var(--steel); }
.modal__success { text-align: center; padding: 20px 4px; }
.modal__success-mark { width: 48px; height: 48px; margin: 0 auto 12px; border-radius: 50%; background: #eaf6f0; color: var(--verify); border: 1px solid #bfe3d3; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 800; }
.modal__success h3 { font-size: 20px; margin-bottom: 8px; }
.modal__success p { color: var(--ink-soft); margin-bottom: 18px; }

/* ============================================================
   New components (ChatGPT P0–P2): trust strip, why-now, walkthrough,
   pilot scorecard, single wedge, audience route cards
   ============================================================ */
.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;
}
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid--4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .grid--4 { grid-template-columns: 1fr; } }

/* Early trust strip */
.truststrip { margin-top: clamp(40px, 6vw, 72px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.truststrip__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 22px; padding: 16px 24px; }
.truststrip__lead { font-weight: 700; font-size: 13px; letter-spacing: .04em; text-transform: uppercase; color: var(--verify); }
.truststrip__items { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 0; padding: 0; }
.truststrip__items li { font-size: 13px; color: var(--ink-soft); background: var(--paper-3); border: 1px solid var(--line); border-radius: 999px; padding: 6px 13px 6px 26px; position: relative; }
.truststrip__items li::before { content: "✓"; position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--verify); font-weight: 800; font-size: 11px; }
.truststrip__link { margin-left: auto; font-size: 13.5px; font-weight: 600; white-space: nowrap; }

/* works-with row (product definition) */
.worksrow { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 20px 0 0; padding: 0; }
.worksrow li { font-size: 12.5px; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; box-shadow: var(--sh-sm); }

/* Why now */
.whynow { margin-top: 34px; }
.whynow__item { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--sh-sm); }
.whynow__num { font-family: var(--font-display); font-weight: 700; font-size: 13px; color: var(--signal-ink); letter-spacing: .1em; }
.whynow__item h3 { font-size: 17px; margin: 8px 0 6px; }
.whynow__item p { font-size: 14px; color: var(--ink-soft); }
.whynow__close { margin-top: 26px; font-size: 16.5px; font-weight: 600; color: var(--ink); }

/* Product walkthrough (interactive stepper) */
.walk { margin-top: 34px; background: var(--graphite-2); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden; }
.walk__order { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 20px; border-bottom: 1px solid var(--line-dark); background: rgba(255,255,255,.02); }
.walk__order-main { display: flex; flex-direction: column; gap: 3px; }
.walk__order-label { font-family: var(--font-display); font-weight: 700; color: var(--on-dark); font-size: 15px; }
.walk__order-intent { color: var(--on-dark-soft); font-size: 13.5px; }
.walk__order-robot { font-size: 12px; font-weight: 600; color: #8fa6ff; background: rgba(143,166,255,.1); border: 1px solid rgba(143,166,255,.25); border-radius: 999px; padding: 5px 11px; white-space: nowrap; }

/* tabs + controls + mode toggle are enhancement-only: hidden until JS adds .is-enhanced */
.walk__tabs, .walk__controls, .walk__modes { display: none; }
.walk.is-enhanced .walk__tabs { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; }
.walk.is-enhanced .walk__controls { display: flex; }
.walk__tabs { list-style: none; margin: 0; padding: 0; border-bottom: 1px solid var(--line-dark); }
.walk__tab { width: 100%; font-family: var(--font-sans); font-weight: 600; font-size: 13.5px; color: var(--on-dark-soft); background: transparent; border: 0; border-right: 1px solid var(--line-dark); padding: 13px 8px; cursor: pointer; position: relative; }
.walk__tabs li:last-child .walk__tab { border-right: 0; }
.walk__tab:hover { color: var(--on-dark); background: rgba(255,255,255,.04); }
.walk__tab.is-active { color: #fff; }
.walk__tab.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: #5f86ff; }
.walk__panels { padding: 22px 20px; }
.walk__panel:not(:last-child) { margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--line-dark); }
/* enhanced: show one panel at a time, no separators */
.walk.is-enhanced .walk__panel { display: none; margin: 0; padding-bottom: 0; border-bottom: 0; }
.walk.is-enhanced .walk__panel.is-active { display: block; }
.walk__phase { font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: #8fa6ff; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.walk__lead { color: var(--on-dark); font-size: 15.5px; margin-bottom: 12px; }
.walk__facts, .walk__plan { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.walk__plan { counter-reset: wp; }
.walk__facts li, .walk__plan li { font-size: 13.5px; color: var(--on-dark-soft); background: var(--graphite); border: 1px solid var(--line-dark); border-radius: 8px; padding: 10px 12px; }
.walk__plan li { counter-increment: wp; padding-left: 34px; position: relative; }
.walk__plan li::before { content: counter(wp); position: absolute; left: 12px; color: #8fa6ff; font-weight: 700; }
.walk__facts .tag--warn { color: #e6b866; border-color: rgba(230,184,102,.3); background: rgba(230,184,102,.08); }
.walk__facts .tag--nogo { color: #e58b82; border-color: rgba(229,139,130,.3); background: rgba(229,139,130,.08); }
.walk__facts .tag--ok { color: #6bd0a8; border-color: rgba(107,208,168,.3); background: rgba(107,208,168,.08); }
.walk__facts .tag--esc { color: #e58b82; border-color: rgba(229,139,130,.4); background: rgba(229,139,130,.12); font-weight: 600; }
.walk__controls { align-items: center; gap: 14px; padding: 0 20px 20px; }
.walk__progress { flex: 1; height: 4px; border-radius: 999px; background: var(--line-dark); overflow: hidden; }
.walk__progress-fill { display: block; height: 100%; width: 25%; background: linear-gradient(90deg, #2a56e8, #5f86ff); transition: width .4s ease; }

/* Vision film — click-to-play, poster-first, lazy (no bytes until play), no CLS */
.visionfilm { margin: 34px 0 0; }
.visionfilm__frame { position: relative; aspect-ratio: 16 / 9; width: 100%; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-dark); background: #000; }
.visionfilm__video { width: 100%; height: 100%; object-fit: cover; display: block; }
/* overlay is hidden by default so with JS off the native <video controls> are usable;
   enhance.ts adds .is-enhanced to reveal the designed poster/play overlay */
.visionfilm__play { display: none; }
.visionfilm.is-enhanced .visionfilm__play {
  position: absolute; inset: 0; width: 100%; height: 100%; cursor: pointer; border: 0; color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  font-family: var(--font-sans);
  background:
    linear-gradient(rgba(20,22,26,.30), rgba(20,22,26,.55)),
    url('/home-collaboration-poster.jpg') center/cover no-repeat, #14161a;
}
.visionfilm__play-icon {
  width: 66px; height: 66px; border-radius: 50%; background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.45); display: flex; align-items: center; justify-content: center;
  font-size: 22px; padding-left: 4px; -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  transition: transform .15s ease, background .15s ease;
}
.visionfilm__play:hover .visionfilm__play-icon, .visionfilm__play:focus-visible .visionfilm__play-icon { transform: scale(1.06); background: rgba(255,255,255,.26); }
.visionfilm__play-label { font-weight: 600; font-size: 14px; letter-spacing: .01em; }
.visionfilm__cap { margin-top: 10px; font-size: 12.5px; color: var(--on-dark-soft); }

/* Pilot scorecard table */
.scorecard-wrap { margin-top: 34px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-2); box-shadow: var(--sh-sm); }
.scorecard { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
.scorecard th, .scorecard td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.scorecard thead th { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--steel); background: var(--paper-3); font-weight: 700; }
.scorecard tbody th[scope="row"] { font-weight: 600; color: var(--ink); font-family: var(--font-sans); }
.scorecard td { color: var(--ink-soft); }
.scorecard tbody tr:last-child th, .scorecard tbody tr:last-child td { border-bottom: 0; }
.scorecard .placeholder { font-size: 13px; }
@media (max-width: 680px) {
  .scorecard-wrap { overflow: visible; background: transparent; border: 0; box-shadow: none; }
  .scorecard { min-width: 0; font-size: 13.5px; }
  .scorecard thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
  .scorecard tbody tr { display: block; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--sh-sm); margin-bottom: 12px; padding: 4px 2px 8px; }
  .scorecard tbody th[scope="row"] { display: block; font-size: 15px; font-family: var(--font-display); padding: 12px 14px 8px; border: 0; }
  .scorecard td { display: flex; justify-content: space-between; gap: 16px; border: 0; padding: 6px 14px; }
  .scorecard td::before { content: attr(data-label); font-weight: 600; color: var(--steel); }
}

/* Wedge deep dive */
.wedge { margin-top: 34px; display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px; align-items: start; }
@media (max-width: 860px) { .wedge { grid-template-columns: 1fr; } }
.wedge__primary { background: var(--paper-2); border: 1px solid var(--line); border-left: 3px solid var(--signal); border-radius: var(--radius); padding: 26px; box-shadow: var(--sh-md); }
.wedge__badge { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--signal-ink); }
.wedge__primary h3 { font-size: 23px; margin: 8px 0 18px; }
.wedge__grid { margin: 0; display: grid; gap: 16px; }
.wedge__grid > div { display: grid; gap: 4px; }
.wedge__grid dt { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--steel); }
.wedge__grid dd { margin: 0; font-size: 15px; color: var(--ink-soft); }
.wedge__future { background: var(--paper-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.wedge__future-h { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--steel); margin-bottom: 12px; }
.wedge__future ul { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 12px; }
.wedge__future li { font-size: 14px; color: var(--ink-soft); }
.wedge__future li b { color: var(--ink); }
.wedge__future-note { font-size: 13px; color: var(--steel); font-style: italic; }

/* Audience route cards */
.audience__cards { margin-top: 30px; }
.routecard { text-align: left; display: flex; flex-direction: column; gap: 8px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--sh-sm); cursor: pointer; font-family: var(--font-sans); transition: border-color .12s ease, transform .12s ease, box-shadow .12s ease; }
.routecard:hover { border-color: var(--signal); transform: translateY(-3px); box-shadow: var(--sh-md); }
.routecard__role { font-family: var(--font-display); font-weight: 700; font-size: 17px; color: var(--ink); }
.routecard__desc { font-size: 14px; color: var(--ink-soft); flex: 1; }
.routecard__go { font-size: 14px; font-weight: 600; color: var(--signal-ink); margin-top: 4px; }

/* Footer contact button (styled as a link) + success mail link */
.site-footer__contact { background: none; border: 0; padding: 4px 0; font: inherit; font-size: 14px; color: var(--ink-soft); cursor: pointer; text-align: left; }
.site-footer__contact:hover { color: var(--ink); text-decoration: underline; }
.site-footer__legal-links .site-footer__contact { color: var(--steel); padding: 0; font-size: 13px; }
.site-footer__legal-links .site-footer__contact:hover { color: var(--ink); }
.modal__success-mail { font-weight: 600; }

/* ============================================================
   v11 additions — proof artifact template, integration interface appendix,
   sticky mobile CTA
   ============================================================ */
/* proof artifact template card */
.proofcard { margin-top: 16px; background: var(--paper-2); border: 1px solid var(--line-2); border-left: 3px solid var(--signal); border-radius: var(--radius-sm); padding: 18px 20px; box-shadow: var(--sh-sm); }
.proofcard__badge { display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--signal-ink); background: var(--signal-wash); border: 1px solid #bcccff; border-radius: 999px; padding: 4px 10px; }
.proofcard__title { font-family: var(--font-display); font-weight: 700; font-size: 17px; margin: 10px 0 12px; }
.proofcard__meta { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; }
@media (max-width: 560px) { .proofcard__meta { grid-template-columns: 1fr; } }
.proofcard__meta > div { display: flex; justify-content: space-between; gap: 12px; font-size: 13.5px; border-bottom: 1px dashed var(--line); padding-bottom: 6px; }
.proofcard__meta dt { color: var(--steel); font-weight: 600; }
.proofcard__meta dd { margin: 0; color: var(--ink-soft); text-align: right; }
/* live-artifact state — first real artifact (TR-001, controlled run) */
.proofcard__badge--live { border-color: var(--signal-ink); }
.proofcard__badge--live::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: var(--signal); vertical-align: 1px; }
.proofcard__note { margin: 12px 0 0; font-size: 13px; color: var(--steel); }
.proofcard__ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

/* integration interface appendix */
.intg-appendix { margin-top: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-2); box-shadow: var(--sh-sm); }
.intg-appendix > summary { cursor: pointer; padding: 16px 20px; font-weight: 600; font-size: 15px; color: var(--ink); list-style: none; display: flex; align-items: center; gap: 10px; }
.intg-appendix > summary::-webkit-details-marker { display: none; }
.intg-appendix > summary::before { content: "＋"; color: var(--signal-ink); font-weight: 700; }
.intg-appendix[open] > summary::before { content: "－"; }
.intg-appendix > summary:focus-visible { outline: 3px solid var(--signal); outline-offset: -3px; border-radius: var(--radius); }
.intg-appendix__body { padding: 0 20px 20px; }
.intg-appendix__dl { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .intg-appendix__dl { grid-template-columns: 1fr; } }
.intg-appendix__dl dt { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--signal-ink); margin-bottom: 2px; }
.intg-appendix__dl dd { margin: 0; font-size: 13.5px; color: var(--ink-soft); }
.intg-appendix__note { margin-top: 16px; font-size: 13.5px; color: var(--ink-soft); }
.linkbtn { background: none; border: 0; padding: 0; font: inherit; font-weight: 600; color: var(--signal-ink); cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
.linkbtn:hover { color: #1a3aa8; }

/* mobile section index — orientation on a long page */
.sectionindex { display: none; }
@media (max-width: 700px) {
  .sectionindex { display: flex; gap: 8px; overflow-x: auto; -webkit-overflow-scrolling: touch; padding: 12px 16px; background: var(--paper-3); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); scrollbar-width: none; }
  .sectionindex::-webkit-scrollbar { display: none; }
  .sectionindex a { flex: none; font-size: 13px; font-weight: 600; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; white-space: nowrap; }
  .sectionindex a:hover { color: var(--ink); text-decoration: none; }
}

/* sticky mobile CTA (long page) */
.mobilecta { display: none; }
@media (max-width: 700px) {
  .mobilecta { display: flex; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 38; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: rgba(246,245,242,.94); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-top: 1px solid var(--line); }
  .mobilecta .btn { flex: 1; min-height: 44px; }
  body { padding-bottom: 76px; }
}

/* ============================================================
   v9 additions — mobile hamburger nav, buyer line, walkthrough lifecycle,
   evidence roadmap, integration tiers, wedge workflows, pilot disqualifiers
   ============================================================ */
/* mobile hamburger + dropdown nav. Base = shown (flex); hidden on desktop via the
   min-width query below so this unconditional rule can't override the mobile display. */
.site-header__burger { display: flex; width: 44px; height: 44px; border: 1px solid var(--line-2); border-radius: 9px; background: var(--paper-2); cursor: pointer; padding: 0; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
@media (min-width: 961px) { .site-header__burger { display: none; } }
.site-header__burger span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.site-header__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.site-header__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.hero__buyer { margin-top: 10px; font-size: 13.5px; color: var(--steel); max-width: 48ch; }

/* walkthrough task-lifecycle strip */
.walk__lifecycle { margin: 22px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.wl { font-size: 12px; font-weight: 600; color: var(--on-dark-soft); background: var(--graphite); border: 1px solid var(--line-dark); border-radius: 999px; padding: 6px 12px; position: relative; }
.wl:not(:last-child)::after { content: "→"; position: absolute; right: -13px; top: 50%; transform: translateY(-50%); color: var(--on-dark-soft); font-size: 12px; }
.wl--exc { color: #e6b866; border-color: rgba(230,184,102,.35); }
.wl--ok { color: #6bd0a8; border-color: rgba(107,208,168,.4); background: rgba(107,208,168,.08); }

/* evidence roadmap (proof slot) */
.proofroadmap-lead { margin: 30px 0 16px; font-size: 15.5px; color: var(--ink-soft); }
.proofroadmap { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.proofroadmap li { display: flex; align-items: flex-start; gap: 14px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; box-shadow: var(--sh-sm); }
.proofroadmap__ck { flex: none; width: 20px; height: 20px; margin-top: 1px; border: 2px dashed var(--line-2); border-radius: 5px; }
.proofroadmap__body { flex: 1; }
.proofroadmap__body b { font-size: 14.5px; }
.proofroadmap__body p { font-size: 13px; color: var(--ink-soft); margin-top: 2px; }
.proofroadmap__when { flex: none; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--steel); background: var(--paper-3); border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; white-space: nowrap; }
/* active when-tag — the artifact behind it is live (matches .proofcard__badge palette) */
.proofroadmap__when--live { color: var(--signal-ink); background: var(--signal-wash); border-color: #bcccff; }

/* integration tiers */
.intg { position: relative; }
.intg__tier { display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; border-radius: 999px; padding: 3px 9px; margin-bottom: 8px; border: 1px solid transparent; }
.intg__tier--req { color: #1c40c2; background: var(--signal-wash); border-color: #bcccff; }
.intg__tier--opt { color: var(--steel); background: var(--paper-3); border-color: var(--line); }
.intg__tier--fut { color: var(--warn); background: #fbf4e3; border-color: #ecd9ad; }
.integration__legend { margin-top: 18px; font-size: 13px; color: var(--ink-soft); display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.integration__legend .intg__tier { margin-bottom: 0; }

/* wedge first workflows */
.wedge__workflows { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.wedge__wf-h { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--steel); margin-bottom: 10px; }
.wedge__workflows ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.wedge__workflows li { font-size: 13px; color: var(--ink-soft); background: var(--paper-3); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; }

/* pilot disqualifiers */
.pilotpkg__notready { margin-top: 18px; font-size: 14px; color: var(--ink-soft); background: #fbf4e3; border: 1px solid #ecd9ad; border-radius: var(--radius-sm); padding: 14px 16px; }
.pilotpkg__notready strong { color: var(--warn); }

/* ============================================================
   v7 additions — hero wedge, sim pill, 2-mode walkthrough, proof slot,
   pilot package, integration, escalation, trust center, why-Origin
   ============================================================ */
.pill--sim { background: #fbf4e3; color: var(--warn); border-color: #ecd9ad; }

.hero__wedge { margin-top: 20px; font-size: 14.5px; color: var(--ink-soft); max-width: 48ch; padding-left: 14px; border-left: 3px solid var(--signal); }

/* walkthrough mode toggle + mode blocks */
.walk__modes { gap: 8px; padding: 12px 20px 0; }
.walk.is-enhanced .walk__modes { display: inline-flex; }
.walk__mode { font-family: var(--font-sans); font-weight: 600; font-size: 13px; color: var(--on-dark-soft); background: var(--graphite); border: 1px solid var(--line-dark); border-radius: 999px; padding: 7px 15px; cursor: pointer; transition: color .12s, background .12s, border-color .12s; }
.walk__mode:hover { color: var(--on-dark); }
.walk__mode.is-active { color: #fff; background: rgba(95,134,255,.16); border-color: #5f86ff; }
.walk.is-enhanced .walk__mode-block { display: none; }
.walk.is-enhanced .walk__mode-block.is-active { display: block; }
.walk__mode-block:not(:last-of-type) { margin-bottom: 6px; }

/* vision film — subordinate to the walkthrough */
.visionfilm--sub { max-width: 620px; margin-left: auto; margin-right: auto; margin-top: 42px; }
.visionfilm--sub .visionfilm__play-label { font-size: 13px; }

/* proof artifact slot */
.proofslot { margin-top: 30px; }
.proofslot__stage { border: 1px dashed var(--line-2); border-radius: var(--radius); background: repeating-linear-gradient(135deg, var(--paper-2) 0 14px, var(--paper-3) 14px 28px); padding: 34px 24px; text-align: center; }
.proofslot__badge { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--steel); background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; }
.proofslot__msg { margin: 14px 0 16px; font-family: var(--font-display); font-size: 19px; color: var(--ink-soft); }
.proofslot__types { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 0; padding: 0; }
.proofslot__types li { font-size: 13px; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); border-radius: 8px; padding: 7px 12px; }
.proofslot__note { margin-top: 14px; font-size: 13px; color: var(--steel); text-align: center; }

/* pilot package */
.pilotpkg { margin-top: 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 760px) { .pilotpkg { grid-template-columns: 1fr; } }
.pilotpkg__col { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--sh-sm); }
.pilotpkg__col--need { background: var(--paper-3); }
.pilotpkg__head { font-family: var(--font-display); font-weight: 700; font-size: 14px; letter-spacing: .04em; text-transform: uppercase; color: var(--signal-ink); margin-bottom: 14px; }
.pilotpkg__col--need .pilotpkg__head { color: var(--ink-soft); }
.pilotpkg__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.pilotpkg__list li { font-size: 14.5px; color: var(--ink-soft); padding-left: 22px; position: relative; }
.pilotpkg__list li::before { content: "→"; position: absolute; left: 0; color: var(--signal-ink); font-weight: 700; }
.pilotpkg__col--need .pilotpkg__list li::before { content: "•"; color: var(--steel); }

/* integration cards */
.integration { margin-top: 30px; }
.intg { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--sh-sm); }
.intg h3 { font-size: 15px; margin-bottom: 6px; }
.intg p { font-size: 13.5px; color: var(--ink-soft); }

/* escalation / non-goals */
.escalate { list-style: none; margin: 30px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 700px) { .escalate { grid-template-columns: 1fr; } }
.escalate li { position: relative; padding: 4px 4px 4px 36px; }
.escalate__mark { position: absolute; left: 0; top: 2px; width: 24px; height: 24px; border-radius: 50%; background: #fbf4e3; color: var(--warn); border: 1px solid #ecd9ad; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; }
.escalate h3 { font-size: 15.5px; margin-bottom: 3px; }
.escalate p { font-size: 13.5px; color: var(--ink-soft); }

/* trust center */
.trustcenter { margin-top: 30px; }
.tc { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--sh-sm); }
.tc h3 { font-size: 15px; margin-bottom: 5px; }
.tc p { font-size: 13.5px; color: var(--ink-soft); }

/* why Origin wins */
.whywin { margin-top: 28px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 760px) { .whywin { grid-template-columns: 1fr; } }
.whywin__pt { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--sh-sm); }
.whywin__pt h3 { font-size: 17px; margin-bottom: 6px; }
.whywin__pt p { font-size: 14px; color: var(--ink-soft); }

/* scorecard now has 6 columns — give it a touch more room before the scroll wrap */
.scorecard { min-width: 760px; }
@media (max-width: 680px) { .scorecard { min-width: 0; } }

/* ============================================================
   Mobile refinements — console collapse + comfortable tap targets
   ============================================================ */
@media (max-width: 560px) {
  /* the hero console must stack to one column so the floor-map isn't crushed
     to ~70px and its absolute labels don't overlap */
  .console__grid { grid-template-columns: 1fr; }
  .panel--feed { grid-row: auto; }
  .floormap { height: 132px; }
  /* walkthrough: stack the work-order header, keep tabs readable */
  .walk__order { flex-direction: column; align-items: flex-start; gap: 8px; }
  .walk__tab { font-size: 11.5px; padding: 11px 2px; }
  .walk__modes { flex-wrap: wrap; }
  .truststrip__link { margin-left: 0; }
}
@media (max-width: 600px) {
  /* WCAG 2.5.8 / comfortable touch: bring primary controls to >=44px */
  .btn { min-height: 44px; }
  .btn--sm { min-height: 44px; }
  .chip { min-height: 44px; }
  .modal__close { width: 40px; height: 40px; }
  .site-nav a { padding: 8px 0; display: inline-block; }
  .site-footer__nav a { padding: 9px 0; }
  .site-footer__legal-links a { padding: 8px 0; display: inline-block; }
  /* comfortable touch on the walkthrough's own controls + header/trust links */
  .walk__mode { min-height: 44px; }
  .walk__tab { min-height: 44px; }
  .site-header__login { padding: 11px 4px; }
  .truststrip__link { padding: 11px 0; display: inline-block; }
}

/* ============================================================
   Motion / reveal — progressive enhancement
   ============================================================ */
[data-reveal] { opacity: 0; transform: translateY(16px); }
.reveal-ready [data-reveal] { transition: opacity .6s ease, transform .6s ease; }
[data-reveal].is-in { opacity: 1; transform: none; }

/* Respect reduced motion: no transitions/animations, everything visible & final */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .btn:hover { transform: none; }
}