/* ==================================================================
   ZTA Labs — design system

   Eight brand colours, no others. Text is the two canvases inverting; muted
   text is the same value at reduced alpha, so nothing new enters the
   palette.

   Switzer at 400 throughout. 500 is reserved for a single figure or
   word. Hierarchy comes from size and spacing, never weight.

   Self-hosted font. Do not add a Google Fonts link — it sends visitor
   IPs to a third party and would put a cookie banner on a site that
   otherwise needs none.
   ================================================================== */

:root {
  --dark:     #27222D;
  --light:    #F7F4FB;
  --accent:   #4B0082;
  --accent-h: #6B5DD3;
  --border:   #D8B8F5;
  --fill:     #CBAEFF;
  --signal:   #5A9D71;
  --gold:     #F4B72D;

  --muted-on-dark:  rgba(247, 244, 251, .64);
  --muted-on-light: rgba(39, 34, 45, .62);
  --rule-on-dark:   rgba(216, 184, 245, .2);

  --wrap: 1200px;
  --read: 68ch;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Switzer', 'Switzer Variable', sans-serif;
  font-weight: 400;
  font-size: 18px;
  line-height: 1.55;
  background: var(--light);
  color: var(--dark);
}

a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.stat { font-weight: 500; }

/* ---------- Canvases ---------- */

.dark {
  background-color: var(--dark);
  color: var(--light);
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='38.11' height='66.00' viewBox='0 0 38.11 66.00'><path d='M19.05 -55.00L38.11 -44.00L38.11 -22.00L19.05 -11.00L-0.00 -22.00L0.00 -44.00Z M19.05 11.00L38.11 22.00L38.11 44.00L19.05 55.00L-0.00 44.00L0.00 22.00Z M0.00 -22.00L19.05 -11.00L19.05 11.00L0.00 22.00L-19.05 11.00L-19.05 -11.00Z M38.11 -22.00L57.16 -11.00L57.16 11.00L38.11 22.00L19.05 11.00L19.05 -11.00Z M0.00 44.00L19.05 55.00L19.05 77.00L0.00 88.00L-19.05 77.00L-19.05 55.00Z M38.11 44.00L57.16 55.00L57.16 77.00L38.11 88.00L19.05 77.00L19.05 55.00Z M19.05 77.00L38.11 88.00L38.11 110.00L19.05 121.00L-0.00 110.00L0.00 88.00Z' fill='none' stroke='%23D8B8F5' stroke-width='1' stroke-opacity='.085'/></svg>");
  background-size: 38.11px 66.00px;
  background-repeat: repeat;
}
.dark--flat { background-image: none; }

/* ---------- Header ---------- */

.head { border-bottom: 1px solid var(--rule-on-dark); }
.head .wrap { display: flex; align-items: center; gap: 32px; height: 76px; }
.brand { font-size: 20px; letter-spacing: -0.015em; text-decoration: none; white-space: nowrap; }
.brand .dot { width: 9px; height: 9px; background: var(--fill); display: inline-block; margin-right: 10px; vertical-align: 1px; }
.nav { display: flex; gap: 26px; margin-left: auto; align-items: center; }
.nav a { font-size: 15px; text-decoration: none; color: var(--muted-on-dark); white-space: nowrap; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--light); }

/* ---------- Buttons ---------- */
/* Roles are canvas-dependent. #4B0082 carries ~12:1 on the light canvas
   and ~1.2:1 on the dark, so the primary CTA inverts to a light fill. */

.btn {
  display: inline-block; font-size: 16px; font-weight: 400; text-decoration: none;
  padding: 13px 24px; border-radius: 4px;
  border: 1px solid var(--fill); background: var(--fill); color: var(--dark);
  transition: background .15s, border-color .15s, color .15s;
}
.btn:hover { background: var(--accent-h); border-color: var(--accent-h); color: var(--light); }
.btn.sm { padding: 9px 16px; font-size: 15px; }
.btn.quiet { background: transparent; border-color: var(--border); color: var(--light); }
.btn.quiet:hover { background: transparent; border-color: var(--accent-h); color: var(--accent-h); }

/* Nav button keeps dark text in every state — at small size the inversion
   reads as a flicker rather than a state change. */
.head .btn, .head .btn:hover { color: var(--dark); }
.head .btn:hover { background: var(--border); border-color: var(--border); }

.on-light .btn { background: var(--accent); border-color: var(--accent); color: var(--light); }
.on-light .btn:hover { background: var(--accent-h); border-color: var(--accent-h); }
.on-light .btn.quiet { background: transparent; border-color: var(--border); color: var(--dark); }
.on-light .btn.quiet:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Type ---------- */

h1, h2, h3, h4 { font-weight: 400; margin: 0; letter-spacing: -0.02em; }
h1 { font-size: clamp(42px, 6vw, 68px); line-height: 1.04; letter-spacing: -0.03em; max-width: 17ch; }
h2 { font-size: clamp(30px, 3.6vw, 42px); line-height: 1.12; max-width: 22ch; }
h3 { font-size: 22px; line-height: 1.25; letter-spacing: -0.015em; }
h4 { font-size: 18px; line-height: 1.35; letter-spacing: -0.01em; }

.eyebrow { font-size: 15px; margin: 0 0 20px; color: var(--muted-on-light); }
.dark .eyebrow { color: var(--fill); }

.lede { font-size: 20px; line-height: 1.5; max-width: var(--read); margin: 26px 0 0; color: var(--muted-on-light); }
.dark .lede { color: var(--muted-on-dark); }

p { max-width: var(--read); }
.prose p { margin: 18px 0 0; color: var(--muted-on-light); }
.prose p:first-child { margin-top: 0; }
.prose strong { font-weight: 400; color: var(--dark); }
.dark .prose p { color: var(--muted-on-dark); }
.dark .prose strong { color: var(--light); }

.section { padding: 92px 0; }
.section--tight { padding: 64px 0; }
.rule { border: 0; border-top: 1px solid var(--border); margin: 0; }
.dark .rule { border-color: var(--rule-on-dark); }

.actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 38px 0 0; }

/* ---------- Specimen panel ---------- */

.panel { background: var(--light); color: var(--dark); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.panel-bar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 18px 24px; border-bottom: 1px solid var(--border); }
.panel-bar .t { font-size: 16px; }
.panel-bar .m { font-size: 14px; color: var(--muted-on-light); }
.verified { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--signal); }
.verified .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--signal); display: inline-block; }

table { width: 100%; border-collapse: collapse; font-size: 16px; }
thead th { text-align: left; font-weight: 400; font-size: 14px; color: var(--muted-on-light); padding: 14px 24px; border-bottom: 1px solid var(--border); }
thead th.r, tbody td.r { text-align: right; }
tbody td { padding: 15px 24px; border-bottom: 1px solid rgba(216,184,245,.5); }
tbody tr:last-child td { border-bottom: none; }
.caption { padding: 15px 24px; font-size: 14px; color: var(--muted-on-light); border-top: 1px solid var(--border); max-width: none; }

.tag { display: inline-block; font-size: 14px; padding: 3px 10px; border-radius: 3px; background: var(--fill); color: var(--dark); }
.tag.live { background: transparent; border: 1px solid var(--signal); color: var(--signal); }

/* ---------- Closing ---------- */

.closing { font-size: clamp(24px, 3vw, 34px); line-height: 1.25; letter-spacing: -0.02em; max-width: 24ch; }

/* ---------- Footer ---------- */

.foot { border-top: 1px solid var(--rule-on-dark); }
.foot .wrap { padding-top: 46px; padding-bottom: 40px; }
.foot-grid { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1fr; gap: 32px; }
.foot-grid h4 { font-size: 15px; color: var(--fill); margin: 0 0 14px; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li { margin-bottom: 10px; }
.foot-grid a { font-size: 15px; color: var(--muted-on-dark); text-decoration: none; }
.foot-grid a:hover { color: var(--light); }
.foot-note { font-size: 15px; color: var(--muted-on-dark); max-width: 36ch; margin: 14px 0 0; }
.foot-bar { border-top: 1px solid var(--rule-on-dark); margin-top: 38px; padding-top: 20px; display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-size: 14px; color: var(--muted-on-dark); }

/* ---------- Responsive ---------- */

@media (max-width: 1000px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .block { grid-template-columns: 1fr; gap: 12px; }
}
@media (max-width: 860px) {
  .nav { display: none; }
  .section { padding: 60px 0; }
  .wrap { padding: 0 22px; }
  thead th, tbody td, .panel-bar, .caption { padding-left: 16px; padding-right: 16px; }
  table { font-size: 15px; }
  thead th:nth-child(3), tbody td:nth-child(3) { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* ---------- Section index ---------- */
/* Numbered sections. An editorial device — it tells the reader where they
   are in an argument, which a long page otherwise hides. */

.idx {
  display: flex; align-items: baseline; gap: 14px;
  margin: 0 0 22px; font-size: 15px; color: var(--muted-on-light);
}
.dark .idx { color: var(--muted-on-dark); }
.idx .n { font-variant-numeric: tabular-nums; color: var(--accent); }
.dark .idx .n { color: var(--fill); }
.idx .bar { flex: 0 0 40px; height: 1px; background: var(--border); }
.dark .idx .bar { background: var(--rule-on-dark); }

/* ---------- Specimen invitation ---------- */

.specimen {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 40px; flex-wrap: wrap; margin-top: 44px;
  padding-top: 34px; border-top: 1px solid var(--rule-on-dark);
}
.on-light .specimen { border-top-color: var(--border); }
.specimen .txt { max-width: 54ch; }

@media (max-width: 860px) {
  .stats { grid-template-columns: 1fr; }
  .stat-item + .stat-item { padding-left: 0; border-left: none; border-top: 1px solid var(--rule-on-dark); }
  .block--num { grid-template-columns: 1fr; }
}

/* ---------- Display statement ---------- */
/* One sentence at headline scale, used to break a long argument. Not a
   pull quote — it carries the claim the section beneath it evidences. */

.display {
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.14; letter-spacing: -0.028em;
  max-width: 26ch; margin: 0;
}
.display .quiet { color: var(--muted-on-dark); }
.on-light .display .quiet { color: var(--muted-on-light); }

/* ---------- Failure receipt ---------- */
/* The page's primary artefact. A real exchange, laid out the way the
   report lays it out, so the marketing page and the deliverable are
   visibly the same object. */

.receipt { background: #fff; color: var(--dark); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.receipt--bleed { border-radius: 6px 6px 0 0; border-bottom: none; }
.receipt-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 17px 26px; border-bottom: 1px solid var(--border);
}
.receipt-bar .who { font-size: 16px; }
.receipt-bar .meta { font-size: 14px; color: var(--muted-on-light); }
.receipt-bar .flag {
  margin-left: auto; font-size: 13px; padding: 3px 10px; border-radius: 3px;
  background: var(--fill); color: var(--dark);
}
.receipt-row {
  display: grid; grid-template-columns: 13ch 1fr; gap: 26px;
  padding: 20px 26px; border-bottom: 1px solid rgba(216,184,245,.5);
}
.receipt-row:last-of-type { border-bottom: none; }
.receipt-row .k { font-size: 14px; color: var(--muted-on-light); }
.receipt-row .v { font-size: 17px; line-height: 1.5; max-width: 66ch; margin: 0; }
.receipt-row .v.said { font-size: 19px; }
.wrong { background: var(--fill); padding: 1px 5px; border-radius: 2px; }
.right { border-bottom: 2px solid var(--signal); padding-bottom: 1px; }
.receipt-foot {
  padding: 18px 26px; border-top: 1px solid var(--border);
  display: flex; gap: 14px; align-items: baseline; flex-wrap: wrap;
  font-size: 15px; color: var(--muted-on-light);
}
.receipt-foot .cost { color: var(--dark); }

/* ---------- Card grid ---------- */

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 52px; background: var(--border); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--light); padding: 30px 28px; }
.dark .card { background: var(--dark); }
.card h3 { margin: 0 0 12px; }
.card p { margin: 0; font-size: 16.5px; line-height: 1.5; color: var(--muted-on-light); max-width: 46ch; }
.dark .card p { color: var(--muted-on-dark); }
.card .n { display: block; font-size: 14px; color: var(--accent); margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.dark .card .n { color: var(--fill); }

/* ---------- Two-up ---------- */

.twoup { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; margin-top: 48px; }
.twoup h3 { margin-bottom: 14px; }
.twoup p { margin: 0; color: var(--muted-on-light); font-size: 17px; }
.dark .twoup p { color: var(--muted-on-dark); }

/* ---------- Inline denial list ---------- */

.denials { margin-top: 48px; border-top: 1px solid var(--border); }
.dark .denials { border-top-color: var(--rule-on-dark); }
.denial { display: grid; grid-template-columns: 26ch 1fr; gap: 40px; padding: 26px 0; border-bottom: 1px solid var(--border); align-items: baseline; }
.dark .denial { border-bottom-color: var(--rule-on-dark); }
.denial h3 { margin: 0; }
.denial p { margin: 0; color: var(--muted-on-light); font-size: 17px; }
.dark .denial p { color: var(--muted-on-dark); }

@media (max-width: 900px) {
  .cards, .cards--3, .twoup { grid-template-columns: 1fr; }
  .denial { grid-template-columns: 1fr; gap: 10px; }
  .receipt-row { grid-template-columns: 1fr; gap: 8px; padding: 18px; }
  .receipt-bar, .receipt-foot { padding-left: 18px; padding-right: 18px; }
}


/* ---------- ZTA site additions ---------- */
.light-hex {
  background-color: var(--light);
  color: var(--dark);
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='38.11' height='66.00' viewBox='0 0 38.11 66.00'><path d='M19.05 -55.00L38.11 -44.00L38.11 -22.00L19.05 -11.00L-0.00 -22.00L0.00 -44.00Z M19.05 11.00L38.11 22.00L38.11 44.00L19.05 55.00L-0.00 44.00L0.00 22.00Z M0.00 -22.00L19.05 -11.00L19.05 11.00L0.00 22.00L-19.05 11.00L-19.05 -11.00Z M38.11 -22.00L57.16 -11.00L57.16 11.00L38.11 22.00L19.05 11.00L19.05 -11.00Z M0.00 44.00L19.05 55.00L19.05 77.00L0.00 88.00L-19.05 77.00L-19.05 55.00Z M38.11 44.00L57.16 55.00L57.16 77.00L38.11 88.00L19.05 77.00L19.05 55.00Z M19.05 77.00L38.11 88.00L38.11 110.00L19.05 121.00L-0.00 110.00L0.00 88.00Z' fill='none' stroke='%23D8B8F5' stroke-width='1' stroke-opacity='.14'/></svg>");
  background-size: 38.11px 66px;
  background-repeat: repeat;
}
.hero { padding: 110px 0 90px; }
.hero .lede { max-width: 34ch; }
.hero-grid, .split, .split-wide, .two-col, .cta-band {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
.split-wide { grid-template-columns: 1.1fr .9fr; }
.hero-strip {
  margin-top: 58px;
  padding-top: 22px;
  border-top: 1px solid var(--rule-on-dark);
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}
.hero-strip span {
  font-size: 16px;
  color: var(--light);
  position: relative;
  padding-left: 16px;
}
.hero-strip span::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--fill);
  position: absolute;
  left: 0;
  top: .62em;
}
.hero-close { margin-top: 18px; font-size: 22px; line-height: 1.35; max-width: 36ch; }
.tri {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-top: 44px;
}
.tri > article {
  padding: 22px 28px 26px 0;
  display: flex;
  flex-direction: column;
}
.tri > article + article { border-left: 1px solid var(--border); padding-left: 28px; }
.tri .kicker { font-size: 15px; color: var(--accent); margin-bottom: 12px; }
.tri p { font-size: 17px; line-height: 1.55; color: var(--muted-on-light); max-width: 32ch; }
.tri .end {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--accent);
}
.note { border-left: 2px solid var(--accent); padding-left: 22px; max-width: 60ch; }
.dark .note { border-left-color: var(--fill); }
.note p { margin: 0; }
.stack { border: 1px solid var(--rule-on-dark); margin-top: 36px; }
.stack .layer { border-bottom: 1px solid var(--rule-on-dark); padding: 18px 22px; }
.stack .layer:last-child { border-bottom: 0; }
.stack .layer h4 { font-size: 16px; color: var(--fill); margin-bottom: 8px; }
.stack .layer p { margin: 0; color: var(--light); max-width: none; }
.control-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin-top: 16px;
  border: 1px solid var(--rule-on-dark);
}
.control-grid > div { padding: 16px 14px; border-right: 1px solid var(--rule-on-dark); font-size: 15px; }
.control-grid > div:last-child { border-right: 0; }
.control-grid h5 { margin: 0 0 8px; font-size: 15px; font-weight: 400; color: var(--light); }
.control-grid p { margin: 0; color: var(--muted-on-dark); font-size: 14px; line-height: 1.45; }
.tick-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.tick-list li { padding-left: 22px; position: relative; font-size: 19px; }
.tick-list li::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--border);
  position: absolute;
  left: 0;
  top: .48em;
}
.ledger, .pillars, .cards, .stats, .flow, .gates, .mini-grid, .program, .workflows {
  display: grid;
  gap: 18px;
}
.ledger { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ledger .cell, .cards article, .mini-grid > div, .gates article, .workflows article {
  border: 1px solid var(--border);
  padding: 24px;
  background: rgba(203,174,255,.10);
}
.dark .ledger .cell, .dark .cards article, .dark .mini-grid > div, .dark .gates article, .dark .workflows article {
  border-color: var(--rule-on-dark);
  background: rgba(203,174,255,.06);
}
.ledger h3, .cards h3, .mini-grid h3, .gates h3, .workflows h3 { font-size: 22px; margin-bottom: 14px; }
.ledger ul, .cards ul, .mini-grid ul, .workflows ul { margin: 0; padding-left: 18px; color: var(--muted-on-light); display: grid; gap: 9px; }
.dark .ledger ul, .dark .cards ul, .dark .mini-grid ul, .dark .workflows ul { color: var(--muted-on-dark); }
.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.program { grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: 30px; }
.program article { border-top: 1px solid var(--border); padding-top: 18px; }
.program h3 { font-size: 20px; margin-bottom: 8px; }
.program p { margin: 0; font-size: 16px; color: var(--muted-on-light); }
.stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-top: 24px;
}
.stats .stat-item { padding: 22px 16px 20px 0; }
.stats .stat-item + .stat-item { border-left: 1px solid var(--border); padding-left: 16px; }
.stats .n { display: block; font-size: clamp(30px, 4vw, 44px); line-height: 1; color: var(--accent); }
.stats .l { display: block; margin-top: 8px; font-size: 15px; color: var(--muted-on-light); }
.receipt {
  margin-top: 28px;
  border: 1px solid var(--border);
  background: var(--light);
  color: var(--dark);
}
.receipt-bar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}
.receipt-bar .who { font-size: 16px; }
.receipt-bar .meta { font-size: 14px; color: var(--muted-on-light); }
.receipt-bar .flag { margin-left: auto; font-size: 14px; border: 1px solid var(--accent); color: var(--accent); padding: 4px 9px; border-radius: 3px; }
.receipt-row {
  display: grid; grid-template-columns: 150px 1fr; gap: 22px;
  padding: 16px 22px; border-bottom: 1px solid rgba(216,184,245,.5);
}
.receipt-row:last-of-type { border-bottom: 0; }
.receipt-row .k { font-size: 14px; color: var(--accent); }
.receipt-row .v { margin: 0; max-width: none; }
.receipt-row .wrong { color: var(--accent); }
.receipt-row .right { color: var(--signal); }
.receipt-foot { padding: 16px 22px; border-top: 1px solid var(--border); font-size: 14px; color: var(--muted-on-light); }
.surface {
  border: 1px solid var(--rule-on-dark);
  padding: 0;
  margin-top: 28px;
  background: rgba(203,174,255,.05);
}
.surface-head {
  display: flex; justify-content: space-between; gap: 18px; align-items: center; flex-wrap: wrap;
  padding: 16px 20px; border-bottom: 1px solid var(--rule-on-dark);
}
.surface-head .meta { color: var(--muted-on-dark); font-size: 15px; }
.surface-grid { display: grid; grid-template-columns: 1.3fr .9fr; }
.surface-main, .surface-side { padding: 20px; }
.surface-side { border-left: 1px solid var(--rule-on-dark); }
.surface-block + .surface-block { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--rule-on-dark); }
.surface h3 { font-size: 18px; margin-bottom: 8px; }
.surface p { max-width: none; margin: 0; }
.response-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.response-grid article { border: 1px solid var(--rule-on-dark); padding: 14px; background: rgba(203,174,255,.05); }
.response-grid .active { border-color: var(--fill); background: rgba(203,174,255,.12); }
.response-grid h4 { font-size: 16px; margin-bottom: 7px; color: var(--light); }
.response-grid p { font-size: 15px; color: var(--muted-on-dark); }
.scoreline { display: flex; justify-content: space-between; gap: 10px; margin-top: 12px; font-size: 15px; }
.flow { grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: 28px; }
.flow article { border-top: 1px solid var(--border); padding-top: 18px; }
.flow .step { font-size: 14px; color: var(--accent); margin-bottom: 8px; }
.flow p { font-size: 16px; color: var(--muted-on-light); max-width: none; }
.dark .flow article { border-top-color: var(--rule-on-dark); }
.dark .flow .step { color: var(--fill); }
.dark .flow p { color: var(--muted-on-dark); }
.quote { font-size: clamp(22px, 3vw, 32px); line-height: 1.28; max-width: 26ch; margin: 0; }
.callout {
  padding: 22px 24px; border-left: 2px solid var(--accent); background: rgba(203,174,255,.10);
}
.dark .callout { border-left-color: var(--fill); background: rgba(203,174,255,.06); }
.callout p { margin: 0; max-width: 56ch; }
.gates { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.gates .status { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 14px; color: var(--accent); }
.dark .gates .status { border-top-color: var(--rule-on-dark); color: var(--fill); }
.workflows { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric-line { font-size: 16px; color: var(--muted-on-light); display: flex; flex-wrap: wrap; gap: 14px; }
.dark .metric-line { color: var(--muted-on-dark); }
.mini-table table { background: var(--light); }
.mini-table .tag.restrict { background: transparent; border: 1px solid var(--border); color: var(--dark); }
.cta-band { align-items: center; }
.kv { display: grid; grid-template-columns: 180px 1fr; gap: 20px; border-top: 1px solid var(--border); }
.kv > div { padding: 18px 0; border-bottom: 1px solid var(--border); }
.kv .k { color: var(--accent); font-size: 15px; }
.kv .v { margin: 0; max-width: none; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 18px; }
.checks li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); position: absolute; left: 0; top: .68em; }
.dark .checks li::before { background: var(--fill); }
.small { font-size: 15px; color: var(--muted-on-light); }
.dark .small { color: var(--muted-on-dark); }

@media (max-width: 1100px) {
  .program { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cards, .flow, .workflows, .gates { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .surface-grid, .hero-grid, .split, .split-wide, .two-col, .cta-band { grid-template-columns: 1fr; }
  .surface-side { border-left: 0; border-top: 1px solid var(--rule-on-dark); }
  .control-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .hero { padding: 80px 0 64px; }
  .hero-strip, .tri, .ledger, .cards, .flow, .program, .stats, .mini-grid, .gates, .workflows { grid-template-columns: 1fr; }
  .tri > article, .tri > article + article { padding: 22px 0; border-left: 0; border-top: 1px solid var(--border); }
  .tri > article:first-child { border-top: 0; }
  .hero-strip span { padding-left: 14px; }
  .stats .stat-item { padding: 18px 0; }
  .stats .stat-item + .stat-item { padding-left: 0; border-left: 0; border-top: 1px solid var(--border); }
  .control-grid { grid-template-columns: 1fr; }
  .receipt-row, .kv { grid-template-columns: 1fr; gap: 8px; }
  .response-grid { grid-template-columns: 1fr; }
}


/* ==================================================================
   Positioning + typography refresh — Homepage and Platform only
   Scoped with body.positioning-refresh so the rest of the site can be
   evaluated against the existing system before this is propagated.
   ================================================================== */

.positioning-refresh .section .eyebrow,
.positioning-refresh .hero .eyebrow {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: 18px;
}

.positioning-refresh .section .lede {
  font-size: 18px;
  line-height: 1.55;
  margin-top: 22px;
}

.positioning-refresh .section h2 {
  font-size: clamp(34px, 3.35vw, 42px);
}

.positioning-refresh .section h3 {
  font-size: 21px;
  line-height: 1.3;
}

.positioning-refresh .section h4 {
  font-size: 18px;
}

.positioning-refresh .section .small {
  font-size: 17px;
  line-height: 1.55;
}

.positioning-refresh .section .quote {
  font-size: clamp(24px, 2.65vw, 29px);
  line-height: 1.3;
}

.positioning-refresh .tri {
  align-items: stretch;
}

.positioning-refresh .tri > article {
  display: flex;
  flex-direction: column;
}

.positioning-refresh .tri .kicker {
  font-size: 17px;
}

.positioning-refresh .tri p {
  font-size: 18px;
  line-height: 1.55;
}

.positioning-refresh .tri .end {
  margin-top: auto;
  padding-top: 16px;
  min-height: 76px;
  display: flex;
  align-items: flex-start;
}

.positioning-refresh .tick-list li {
  font-size: 18px;
  line-height: 1.5;
}

.positioning-refresh .control-grid h5 {
  font-size: 17px;
}

.positioning-refresh .control-grid p {
  font-size: 16px;
}

.positioning-refresh .program h3 {
  font-size: 20px;
}

.positioning-refresh .program p,
.positioning-refresh .flow p,
.positioning-refresh .workflows p,
.positioning-refresh .cards p {
  font-size: 17px;
  line-height: 1.55;
}

.positioning-refresh .audience-strip,
.positioning-refresh .principle-strip {
  display: grid;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--rule-on-dark);
  border-bottom: 1px solid var(--rule-on-dark);
}

.positioning-refresh .audience-strip {
  grid-template-columns: 1.15fr 2.85fr;
}

.positioning-refresh .audience-strip > div,
.positioning-refresh .principle-strip > div {
  padding: 17px 18px 17px 0;
}

.positioning-refresh .audience-strip > div + div,
.positioning-refresh .principle-strip > div + div {
  border-left: 1px solid var(--rule-on-dark);
  padding-left: 18px;
}

.positioning-refresh .audience-strip .label {
  color: var(--fill);
  font-size: 17px;
}

.positioning-refresh .audience-strip .audiences {
  font-size: 17px;
  color: var(--light);
}

.positioning-refresh .principle-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.positioning-refresh .principle-strip .principle {
  color: var(--light);
  font-size: 17px;
  line-height: 1.4;
}

.positioning-refresh .on-light .principle-strip {
  border-color: var(--border);
}

.positioning-refresh .on-light .principle-strip > div + div {
  border-left-color: var(--border);
}

.positioning-refresh .on-light .principle-strip .principle {
  color: var(--dark);
}

.positioning-refresh .ownership-contrast {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--rule-on-dark);
  margin-top: 30px;
}

.positioning-refresh .ownership-contrast > article {
  padding: 26px;
}

.positioning-refresh .ownership-contrast > article + article {
  border-left: 1px solid var(--rule-on-dark);
}

.positioning-refresh .ownership-contrast h3 {
  color: var(--fill);
  margin-bottom: 15px;
}

.positioning-refresh .ownership-contrast ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted-on-dark);
  display: grid;
  gap: 9px;
}

.positioning-refresh .market-note {
  margin-top: 22px;
  color: var(--muted-on-dark);
  font-size: 17px;
  max-width: 72ch;
}

@media (max-width: 860px) {
  .positioning-refresh .audience-strip,
  .positioning-refresh .principle-strip,
  .positioning-refresh .ownership-contrast {
    grid-template-columns: 1fr;
  }

  .positioning-refresh .audience-strip > div + div,
  .positioning-refresh .principle-strip > div + div,
  .positioning-refresh .ownership-contrast > article + article {
    border-left: 0;
    border-top: 1px solid var(--rule-on-dark);
    padding-left: 0;
  }

  .positioning-refresh .ownership-contrast > article + article {
    padding-left: 26px;
  }

  .positioning-refresh .tri .end {
    min-height: 0;
  }
}


/* ==================================================================
   Positioning refresh refinement — v9
   Eyebrows on Homepage + Platform use the same body scale as the
   supporting lede. Audience identification receives more breathing room.
   ================================================================== */

.positioning-refresh .hero .eyebrow {
  font-size: 20px;
  line-height: 1.5;
  margin-bottom: 26px;
}

.positioning-refresh .hero .lede {
  font-size: 20px;
  line-height: 1.5;
}

.positioning-refresh .audience-strip {
  margin-top: 32px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.positioning-refresh .audience-strip > div {
  padding-top: 0;
  padding-bottom: 0;
}

.positioning-refresh .hero .audience-strip + .hero-close {
  margin-top: 28px;
}

@media (max-width: 860px) {
  .positioning-refresh .hero .eyebrow,
  .positioning-refresh .hero .lede {
    font-size: 18px;
  }

  .positioning-refresh .audience-strip {
    margin-top: 28px;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .positioning-refresh .hero .audience-strip + .hero-close {
    margin-top: 24px;
  }
}


/* ==================================================================
   v10 layout refinement
   ================================================================== */

/* More breathing room between the ownership strip and audience block. */
.positioning-refresh .hero .audience-strip {
  margin-top: 50px;
  padding-top: 24px;
  padding-bottom: 24px;
}

/* Keep the core ownership statement on one line on desktop. */
.positioning-refresh .hero .hero-close {
  max-width: none;
  width: 100%;
  margin-top: 30px;
  white-space: nowrap;
}

/* Lock the three editorial columns to the same internal row structure.
   This forces the purple rules and concluding statements to align. */
.positioning-refresh .tri > article {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  align-items: start;
}

.positioning-refresh .tri .end {
  margin-top: 18px;
  min-height: 0;
  display: block;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* What ZTA delivers: one consistent muted text treatment. */
.positioning-refresh .dark .lede,
.positioning-refresh .dark .tick-list li,
.positioning-refresh .dark .principle-strip .principle {
  color: var(--muted-on-dark);
}

.positioning-refresh .dark .tick-list {
  gap: 20px;
  padding-top: 10px;
}

.positioning-refresh .dark .tick-list li {
  line-height: 1.55;
}

.positioning-refresh .dark .principle-strip {
  margin-top: 44px;
}

.positioning-refresh .dark .principle-strip > div {
  padding-top: 22px;
  padding-bottom: 22px;
}

.positioning-refresh .dark .principle-strip .principle {
  font-size: 18px;
  line-height: 1.45;
}

/* Give the architecture visual more separation from the principle strip. */
.positioning-refresh .dark .principle-strip + .stack {
  margin-top: 42px;
}

@media (max-width: 860px) {
  .positioning-refresh .hero .audience-strip {
    margin-top: 38px;
  }

  .positioning-refresh .hero .hero-close {
    white-space: normal;
  }

  .positioning-refresh .tri > article {
    display: block;
  }

  .positioning-refresh .tri .end {
    margin-top: 18px;
  }
}


/* ==================================================================
   v11 — homepage lower-hero typography + three-column rule alignment
   ================================================================== */

/* One consistent type size for the lower hero information. */
.positioning-refresh .hero .hero-strip span,
.positioning-refresh .hero .audience-strip .label,
.positioning-refresh .hero .audience-strip .audiences,
.positioning-refresh .hero .hero-close {
  font-size: 18px;
  line-height: 1.5;
}

/* Give the five ownership items their own bounded row and center them
   vertically between the upper and lower horizontal rules. */
.positioning-refresh .hero .hero-strip {
  margin-top: 58px;
  padding-top: 24px;
  padding-bottom: 24px;
  border-top: 1px solid var(--rule-on-dark);
  border-bottom: 1px solid var(--rule-on-dark);
  align-items: center;
}

.positioning-refresh .hero .hero-strip span {
  display: flex;
  align-items: center;
  min-height: 27px;
}

/* Separate the audience block from the ownership row instead of using
   its top border as the lower rule for the five-item row. */
.positioning-refresh .hero .audience-strip {
  margin-top: 34px;
  padding-top: 0;
  padding-bottom: 26px;
  border-top: 0;
  border-bottom: 1px solid var(--rule-on-dark);
}

.positioning-refresh .hero .hero-close {
  margin-top: 28px;
}

/* Give every explanatory paragraph in the three-column architecture
   section the same reserved vertical space. This places the purple
   closing rule at exactly the same Y position in all three columns. */
.positioning-refresh .tri > article {
  display: flex;
  flex-direction: column;
}

.positioning-refresh .tri > article > p:not(.end) {
  min-height: 168px;
}

.positioning-refresh .tri .end {
  margin-top: 0;
  padding-top: 16px;
  min-height: 74px;
  border-top: 1px solid var(--border);
}

/* Make the closing statement itself use the same type size in all three. */
.positioning-refresh .tri .end {
  font-size: 18px;
  line-height: 1.55;
}

@media (max-width: 1100px) {
  .positioning-refresh .tri > article > p:not(.end) {
    min-height: 196px;
  }
}

@media (max-width: 860px) {
  .positioning-refresh .hero .hero-strip span,
  .positioning-refresh .hero .audience-strip .label,
  .positioning-refresh .hero .audience-strip .audiences,
  .positioning-refresh .hero .hero-close {
    font-size: 18px;
  }

  .positioning-refresh .hero .hero-strip {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .positioning-refresh .hero .audience-strip {
    margin-top: 28px;
    padding-bottom: 22px;
  }

  .positioning-refresh .tri > article > p:not(.end) {
    min-height: 0;
  }

  .positioning-refresh .tri .end {
    margin-top: 18px;
    min-height: 0;
  }
}


/* ==================================================================
   v12 — approved typography system propagated across the full site
   ================================================================== */

.positioning-refresh .section .cards p,
.positioning-refresh .section .flow p,
.positioning-refresh .section .workflows p,
.positioning-refresh .section .program p,
.positioning-refresh .section .note p,
.positioning-refresh .section .callout p,
.positioning-refresh .section .checks li,
.positioning-refresh .section .kv .v,
.positioning-refresh .section .prose p {
  font-size: 18px;
  line-height: 1.55;
}

.positioning-refresh .section .kv .k,
.positioning-refresh .section .step,
.positioning-refresh .section .code,
.positioning-refresh .section .doc-type {
  font-size: 16px;
  line-height: 1.45;
}

.positioning-refresh .section .cards h3,
.positioning-refresh .section .workflows h3,
.positioning-refresh .section .ledger h3 {
  font-size: 21px;
  line-height: 1.3;
}

.positioning-refresh .section .prose {
  max-width: 74ch;
}

.positioning-refresh .section .prose p + p {
  margin-top: 20px;
}


/* ==================================================================
   v13 release QA — mobile navigation
   Keep the full site navigable without introducing a JavaScript menu.
   ================================================================== */
@media (max-width: 860px) {
  .head .wrap {
    height: auto;
    min-height: 76px;
    flex-wrap: wrap;
    padding-top: 18px;
    padding-bottom: 0;
  }

  .head .nav {
    display: flex;
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 20px;
    overflow-x: auto;
    padding: 14px 0 16px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .head .nav::-webkit-scrollbar {
    display: none;
  }

  .head .nav a {
    flex: 0 0 auto;
  }
}


/* ==================================================================
   v15 — mobile navigation
   Replaces the horizontal-scroll navigation with an accessible menu.
   Desktop navigation is unchanged.
   ================================================================== */

.mobile-menu-toggle {
  display: none;
  margin-left: auto;
  appearance: none;
  border: 1px solid var(--rule-on-dark);
  background: transparent;
  color: var(--light);
  font: inherit;
  font-size: 15px;
  line-height: 1;
  padding: 10px 14px;
  cursor: pointer;
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus-visible {
  border-color: var(--border);
  color: var(--light);
}

@media (max-width: 860px) {
  .head {
    position: relative;
    z-index: 100;
  }

  .head .wrap {
    height: 76px;
    min-height: 76px;
    flex-wrap: nowrap;
    padding-top: 0;
    padding-bottom: 0;
  }

  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .head .nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    width: 100%;
    margin: 0;
    padding: 18px var(--gutter) 22px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: visible;
    background: var(--dark);
    border-top: 1px solid var(--rule-on-dark);
    border-bottom: 1px solid var(--rule-on-dark);
    box-shadow: 0 18px 30px rgba(39,34,45,.14);
  }

  .head .nav.is-open {
    display: flex;
  }

  .head .nav a {
    display: block;
    width: 100%;
    padding: 14px 0;
    font-size: 18px;
    line-height: 1.35;
    border-bottom: 1px solid var(--rule-on-dark);
  }

  .head .nav a:last-child {
    border-bottom: 0;
  }

  .head .nav .btn.sm {
    margin-top: 14px;
    padding: 13px 16px;
    text-align: center;
    border: 1px solid var(--fill);
  }
}


/* ==================================================================
   v17 brand system — honeybee + semantic hexagon
   The bee is the brand mark. The hexagon is the information architecture.
   ================================================================== */

/* ---------- Brand mark in header ---------- */

.brand--bee {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand--bee img {
  width: 42px;
  height: 28px;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand--bee span {
  color: var(--light);
}

/* ---------- Footer lockup ---------- */

.footer-lockup {
  display: flex;
  align-items: center;
  gap: 15px;
  max-width: 390px;
}

.footer-lockup > img {
  width: 76px;
  height: 50px;
  object-fit: contain;
  flex: 0 0 auto;
}

.footer-lockup__type {
  min-width: 0;
}

.footer-lockup__name {
  display: grid;
  grid-template-columns: auto 1px auto;
  grid-template-rows: 1fr 1fr;
  align-items: center;
  column-gap: 10px;
  line-height: 1;
  letter-spacing: .08em;
}

.footer-lockup__name .zta {
  grid-column: 1;
  grid-row: 1 / 3;
  font-size: 27px;
  color: var(--light);
  letter-spacing: .06em;
}

.footer-lockup__name .divider {
  grid-column: 2;
  grid-row: 1 / 3;
  height: 30px;
  width: 1px;
  background: var(--accent-h);
}

.footer-lockup__name .ai {
  grid-column: 3;
  grid-row: 1;
  font-size: 15px;
  color: var(--gold);
  align-self: end;
  padding-bottom: 2px;
}

.footer-lockup__name .labs {
  grid-column: 3;
  grid-row: 2;
  font-size: 15px;
  color: var(--fill);
  align-self: start;
  padding-top: 2px;
}

.footer-lockup__tag {
  margin-top: 10px;
  font-size: 10px;
  line-height: 1.35;
  letter-spacing: .16em;
  color: var(--muted-on-dark);
  white-space: nowrap;
}

.footer-lockup__tag strong {
  color: var(--gold);
  font-weight: 400;
}

/* ---------- Semantic honeycomb ---------- */

.semantic-block {
  margin-top: 72px;
  padding-top: 56px;
  border-top: 1px solid var(--rule-on-dark);
}

.semantic-intro {
  align-items: start;
}

.semantic-intro > div:first-child p,
.semantic-platform-lede {
  margin: 18px 0 0;
  color: var(--muted-on-dark);
  font-size: 18px;
  line-height: 1.55;
}

.semantic-principle {
  border-left: 1px solid var(--rule-on-dark);
  padding-left: 28px;
}

.semantic-principle p {
  margin: 0;
  color: var(--muted-on-dark);
  font-size: 18px;
  line-height: 1.55;
}

.semantic-principle strong {
  color: var(--light);
  font-weight: 400;
}

.semantic-hive {
  position: relative;
  width: min(760px, 100%);
  height: 650px;
  margin: 54px auto 0;
}

.semantic-hex {
  position: absolute;
  width: 190px;
  height: 220px;
  background: var(--border);
  clip-path: polygon(50% 0%, 93.3% 25%, 93.3% 75%, 50% 100%, 6.7% 75%, 6.7% 25%);
  transition: transform .15s ease, background-color .15s ease;
}

.semantic-hex__inner {
  position: absolute;
  inset: 2px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 27px;
  text-align: center;
  background: var(--dark);
  clip-path: polygon(50% 0%, 93.3% 25%, 93.3% 75%, 50% 100%, 6.7% 75%, 6.7% 25%);
}

.semantic-hex h4 {
  margin: 0;
  color: var(--light);
  font-size: 20px;
  line-height: 1.15;
}

.semantic-hex p {
  margin: 10px 0 0;
  color: var(--muted-on-dark);
  font-size: 14px;
  line-height: 1.4;
}

.semantic-hex:hover {
  transform: translateY(-3px);
  background: var(--accent-h);
}

.semantic-hex--center {
  background: var(--light);
}

.semantic-hex--center .semantic-hex__inner {
  background: var(--accent);
}

.semantic-hex--center h4,
.semantic-hex--center p {
  color: var(--light);
}

.semantic-hex--center h4 {
  font-size: 21px;
}

.semantic-hex--human {
  background: var(--gold);
}

.semantic-hex--human h4 {
  color: var(--gold);
}

.hex-data       { left: 285px; top: 0; }
.hex-models     { left: 470px; top: 105px; }
.hex-compute    { left: 470px; top: 315px; }
.hex-center     { left: 285px; top: 210px; }
.hex-agents     { left: 285px; top: 420px; }
.hex-governance { left: 100px; top: 315px; }
.hex-human      { left: 100px; top: 105px; }

.semantic-close {
  margin: 18px auto 0;
  max-width: none;
  text-align: center;
  color: var(--light);
  font-size: 21px;
  line-height: 1.4;
}

/* ---------- Platform expanded architecture ---------- */

.semantic-block--platform {
  margin-top: 66px;
}

.semantic-block--platform > h3 {
  max-width: 29ch;
  font-size: 28px;
}

.architecture-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 38px;
  border-top: 1px solid var(--rule-on-dark);
  border-left: 1px solid var(--rule-on-dark);
}

.architecture-detail-grid article {
  min-height: 150px;
  padding: 24px;
  border-right: 1px solid var(--rule-on-dark);
  border-bottom: 1px solid var(--rule-on-dark);
}

.architecture-detail-grid h4 {
  color: var(--fill);
  margin-bottom: 12px;
}

.architecture-detail-grid p {
  margin: 0;
  color: var(--muted-on-dark);
  font-size: 16px;
  line-height: 1.5;
}

.architecture-detail-grid .human h4 {
  color: var(--gold);
}

/* ---------- About: brand story ---------- */

.brand-story__grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 72px;
  align-items: center;
}

.brand-story__mark {
  min-height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--rule-on-dark);
  padding-right: 48px;
}

.brand-story__mark img {
  width: min(100%, 430px);
  height: auto;
}

.brand-story__grid > div:last-child > p:not(.lede):not(.quote):not(.brand-maxim),
.hive-thought p {
  color: var(--muted-on-dark);
}

.hive-thought {
  margin-top: 34px;
  padding: 24px 0 24px 26px;
  border-left: 2px solid var(--gold);
}

.hive-thought p {
  margin: 0;
  font-size: 19px;
  line-height: 1.5;
}

.hive-thought p + p {
  margin-top: 12px;
}

.brand-story .quote {
  margin-top: 30px;
  color: var(--light);
}

.brand-maxim {
  margin: 28px 0 0;
  color: var(--gold);
  font-size: 18px;
  letter-spacing: .02em;
}

/* ---------- Control · Govern · Build · Evolve ---------- */

.cgbe-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 42px;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.cgbe-grid article {
  min-height: 300px;
  padding: 34px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cgbe-code {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--accent);
  font-size: 15px;
  letter-spacing: .16em;
}

.cgbe-grid h3 {
  max-width: 25ch;
  font-size: 25px;
}

.cgbe-grid p {
  margin: 18px 0 0;
  color: var(--muted-on-light);
  font-size: 18px;
  line-height: 1.55;
}

.cgbe-grid .cgbe-emphasis {
  color: var(--accent);
}

.cgbe-grid .cgbe-evolve {
  box-shadow: inset 0 4px 0 var(--gold);
}

.cgbe-grid .cgbe-evolve .cgbe-code {
  color: var(--dark);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 6px;
}

.cgbe-grid .cgbe-evolve h3 {
  color: var(--dark);
}

/* ---------- Responsive brand system ---------- */

@media (max-width: 1000px) {
  .brand-story__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .brand-story__mark {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--rule-on-dark);
    padding: 0 0 38px;
  }

  .brand-story__mark img {
    width: min(70%, 420px);
  }

  .architecture-detail-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .brand--bee img {
    width: 38px;
    height: 26px;
  }

  .footer-lockup {
    align-items: flex-start;
  }

  .footer-lockup__tag {
    white-space: normal;
  }

  .semantic-block {
    margin-top: 54px;
    padding-top: 42px;
  }

  .semantic-principle {
    margin-top: 24px;
    border-left: 0;
    border-top: 1px solid var(--rule-on-dark);
    padding: 20px 0 0;
  }

  .semantic-hive {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    width: 100%;
    height: auto;
    margin-top: 38px;
  }

  .semantic-hex {
    position: relative;
    left: auto !important;
    top: auto !important;
    width: 100%;
    height: auto;
    aspect-ratio: .866 / 1;
  }

  .semantic-hex__inner {
    padding: 28px 20px;
  }

  .semantic-hex--center {
    grid-column: 1 / -1;
    width: min(230px, 60%);
    justify-self: center;
    order: -1;
  }

  .semantic-hex h4 {
    font-size: 18px;
  }

  .semantic-hex p {
    font-size: 13px;
  }

  .semantic-close {
    margin-top: 28px;
    font-size: 18px;
  }

  .architecture-detail-grid,
  .cgbe-grid {
    grid-template-columns: 1fr;
  }

  .cgbe-grid article {
    min-height: 0;
  }

  .brand-story__mark img {
    width: min(88%, 410px);
  }
}


/* ==================================================================
   v18 semantic hive refinement
   Wider point-up / point-down hexagons with shared walls.
   ================================================================== */

.semantic-hive {
  width: min(900px, 100%);
  height: 620px;
}

/* Wider than the prior cells while preserving the pointed top/bottom form. */
.semantic-hex {
  width: 230px;
  height: 210px;
}

/* Shared-wall layout.
   Horizontal spacing = 199px, vertical spacing = 157px.
   These values create touching edges for a point-up / point-down honeycomb. */
.hex-data       { left: 335px; top: 0; }
.hex-models     { left: 534px; top: 105px; }
.hex-compute    { left: 534px; top: 315px; }
.hex-center     { left: 335px; top: 210px; }
.hex-agents     { left: 335px; top: 420px; }
.hex-governance { left: 136px; top: 315px; }
.hex-human      { left: 136px; top: 105px; }

.semantic-hex__inner {
  padding: 30px 32px;
}

.semantic-hex h4 {
  font-size: 21px;
}

.semantic-hex p {
  font-size: 14.5px;
  line-height: 1.4;
}

@media (max-width: 860px) {
  .semantic-hive {
    width: 100%;
    height: auto;
  }

  .semantic-hex {
    width: 100%;
    height: auto;
    aspect-ratio: 1.095 / 1;
  }
}


/* ==================================================================
   v19 — Interactive semantic honeycomb
   Exact regular flat-top hexagons: one center + six surrounding cells.
   Every perimeter cell shares one full side with the center and one
   full side with each adjacent perimeter cell.
   ================================================================== */

.semantic-hive-shell{
  margin-top:48px;
}

.semantic-hive--interactive{
  --hive-border: rgba(247,244,251,.78);
  --hive-panel: rgba(39,34,45,.96);
  --hive-active: #4B0082;
  --hive-active-2: #6B5DD3;
  position:relative;
  width:min(820px,100%);
  aspect-ratio:1.05847 / 1;
  height:auto;
  margin:0 auto;
}

/* Exact regular flat-top proportions:
   width = 2R; height = sqrt(3)R; therefore h/w = 0.8660254. */
.semantic-hive--interactive .semantic-hex{
  position:absolute;
  width:36.363636%;
  height:33.333333%;
  margin:0;
  padding:0;
  border:0;
  appearance:none;
  font:inherit;
  color:inherit;
  background:var(--hive-border);
  clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%);
  cursor:default;
  transition:filter .18s ease, transform .18s ease, background-color .18s ease;
  z-index:2;
}

.semantic-hive--interactive .semantic-hex--interactive{
  cursor:pointer;
}

.semantic-hive--interactive .semantic-hex__inner{
  position:absolute;
  inset:2px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  padding:13% 13%;
  background:var(--hive-panel);
  clip-path:inherit;
  transition:background .18s ease, box-shadow .18s ease;
}

.semantic-hive--interactive .semantic-hex__title{
  display:block;
  color:var(--light);
  font-size:clamp(16px,2.1vw,22px);
  line-height:1.12;
}

.semantic-hive--interactive .semantic-hex__desc{
  display:block;
  margin-top:10px;
  max-width:16ch;
  color:var(--muted-on-dark);
  font-size:clamp(11px,1.38vw,15px);
  line-height:1.38;
}

.semantic-hive--interactive .semantic-hex--center{
  background:rgba(247,244,251,.92);
  z-index:3;
}

.semantic-hive--interactive .semantic-hex--center .semantic-hex__inner{
  background:linear-gradient(145deg,var(--accent),#5d168f);
}

.semantic-hive--interactive .semantic-hex--center .semantic-hex__title{
  font-size:clamp(17px,2.25vw,24px);
}

.semantic-hive--interactive .semantic-hex--center .semantic-hex__desc{
  color:rgba(247,244,251,.9);
}

/* Human Judgment carries the gold semantic accent. */
.semantic-hive--interactive .semantic-hex--human{
  background:var(--gold);
}
.semantic-hive--interactive .semantic-hex--human .semantic-hex__title{
  color:var(--gold);
}

/* Exact shared-wall positions for a 7-cell ring.
   Stage ratio and percentages preserve geometry responsively. */
.hive-pos-data       { left:31.818182%; top:0; }
.hive-pos-models     { left:59.090909%; top:16.666667%; }
.hive-pos-compute    { left:59.090909%; top:50%; }
.hive-pos-agents     { left:31.818182%; top:66.666667%; }
.hive-pos-governance { left:4.545455%;  top:50%; }
.hive-pos-human      { left:4.545455%;  top:16.666667%; }
.hive-pos-center     { left:31.818182%; top:33.333333%; }

/* Hover/focus/tap states. */
.semantic-hive--interactive .semantic-hex--interactive:hover,
.semantic-hive--interactive .semantic-hex--interactive:focus-visible,
.semantic-hive--interactive .semantic-hex--interactive.is-active{
  background:rgba(247,244,251,.98);
  filter:drop-shadow(0 0 13px rgba(203,174,255,.34));
  z-index:5;
  outline:none;
}

.semantic-hive--interactive .semantic-hex--interactive:hover .semantic-hex__inner,
.semantic-hive--interactive .semantic-hex--interactive:focus-visible .semantic-hex__inner,
.semantic-hive--interactive .semantic-hex--interactive.is-active .semantic-hex__inner{
  background:linear-gradient(145deg,var(--hive-active),var(--hive-active-2));
}

.semantic-hive--interactive .semantic-hex--human:hover,
.semantic-hive--interactive .semantic-hex--human:focus-visible,
.semantic-hive--interactive .semantic-hex--human.is-active{
  background:var(--gold);
  filter:drop-shadow(0 0 13px rgba(244,183,45,.30));
}

.semantic-hive--interactive .semantic-hex--human:hover .semantic-hex__inner,
.semantic-hive--interactive .semantic-hex--human:focus-visible .semantic-hex__inner,
.semantic-hive--interactive .semantic-hex--human.is-active .semantic-hex__inner{
  background:linear-gradient(145deg,#5b4200,#8a6500);
}

.semantic-hive--interactive .semantic-hex--human:hover .semantic-hex__title,
.semantic-hive--interactive .semantic-hex--human:focus-visible .semantic-hex__title,
.semantic-hive--interactive .semantic-hex--human.is-active .semantic-hex__title{
  color:#ffd76a;
}

.semantic-hive--interactive .semantic-hex--center.is-linked{
  filter:drop-shadow(0 0 18px rgba(107,93,211,.54));
}

.semantic-hive--interactive .semantic-hex--center.is-linked .semantic-hex__inner{
  background:linear-gradient(145deg,#5e1590,#7525b1);
}

.semantic-hive-detail{
  width:min(820px,100%);
  min-height:76px;
  margin:22px auto 0;
  padding:17px 20px;
  display:grid;
  grid-template-columns:minmax(150px,.34fr) 1fr;
  gap:20px;
  align-items:start;
  border-top:1px solid var(--rule-on-dark);
  border-bottom:1px solid var(--rule-on-dark);
}

.semantic-hive-detail__label{
  color:var(--fill);
  font-size:15px;
  letter-spacing:.04em;
}

.semantic-hive-detail__text{
  color:var(--muted-on-dark);
  font-size:16px;
  line-height:1.5;
}

.semantic-hive-detail.is-human .semantic-hive-detail__label{
  color:var(--gold);
}

@media(max-width:620px){
  .semantic-hive-shell{
    margin-top:34px;
  }

  .semantic-hive--interactive{
    width:100%;
  }

  .semantic-hive--interactive .semantic-hex__inner{
    inset:1.5px;
    padding:10% 10%;
  }

  .semantic-hive--interactive .semantic-hex__title{
    font-size:clamp(11px,3.2vw,15px);
  }

  .semantic-hive--interactive .semantic-hex__desc{
    display:none;
  }

  .semantic-hive--interactive .semantic-hex--center .semantic-hex__title{
    font-size:clamp(11px,3.25vw,15px);
  }

  .semantic-hive-detail{
    min-height:92px;
    grid-template-columns:1fr;
    gap:6px;
    margin-top:16px;
    padding:14px 0;
  }

  .semantic-hive-detail__label{
    font-size:14px;
  }

  .semantic-hive-detail__text{
    font-size:15px;
  }
}

@media(prefers-reduced-motion:reduce){
  .semantic-hive--interactive .semantic-hex,
  .semantic-hive--interactive .semantic-hex__inner{
    transition:none;
  }
}


/* ==================================================================
   v20 — Insights / The Buzz publishing system
   ================================================================== */

.social-follow{
  margin-top:32px;
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  gap:24px;
  border-top:1px solid var(--rule-on-dark);
  color:var(--muted-on-dark);
  font-size:16px;
}
.social-follow a{color:var(--fill)}

.insights-hero h1{
  max-width:19ch;
}

.insight-feature{
  display:grid;
  grid-template-columns:minmax(240px,.72fr) 1.55fr;
  gap:56px;
  align-items:center;
  margin-top:30px;
}

.insight-cover{
  display:block;
  max-width:390px;
  box-shadow:0 18px 50px rgba(39,34,45,.12);
}
.insight-cover img,
.article-cover img,
.home-featured-insight__cover img{
  display:block;
  width:100%;
  height:auto;
}

.insight-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:18px;
}
.insight-tags span{
  display:inline-block;
  padding:7px 10px;
  border:1px solid var(--border);
  color:var(--accent);
  font-size:13px;
  line-height:1;
  letter-spacing:.025em;
}
.insight-tags.on-dark span{
  border-color:rgba(216,184,245,.35);
  color:var(--fill);
}

.insight-feature h2{
  margin-bottom:10px;
}
.insight-feature h2 a,
.home-featured-insight h3 a{
  color:inherit;
  text-decoration:none;
}
.insight-feature h2 a:hover,
.home-featured-insight h3 a:hover{
  color:var(--accent);
}
.insight-subtitle,
.home-featured-insight__sub{
  color:var(--accent);
  font-size:20px;
  line-height:1.45;
}

.article-meta-inline{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin:22px 0;
  color:var(--muted-on-light);
  font-size:14px;
}
.article-meta-inline span + span::before{
  content:"·";
  margin:0 10px;
  color:var(--accent-h);
}
.article-meta-inline.on-dark{
  color:var(--muted-on-dark);
}

.text-link{
  color:var(--accent);
  font-size:16px;
}

/* Homepage featured insight */
.home-featured-insight{
  display:grid;
  grid-template-columns:190px 1fr;
  gap:38px;
  align-items:center;
  margin-top:42px;
  padding-top:36px;
  border-top:1px solid var(--border);
}
.home-featured-insight__cover{
  display:block;
  box-shadow:0 12px 34px rgba(39,34,45,.10);
}
.home-featured-insight h3{
  margin-bottom:8px;
  font-size:30px;
}
.home-featured-insight p{
  max-width:70ch;
}

/* Article hero */
.article-hero{
  padding:78px 0 82px;
}
.article-hero-grid{
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:70px;
  align-items:center;
}
.article-hero h1{
  max-width:14ch;
  margin-top:24px;
}
.article-hero-subtitle{
  margin:18px 0 0;
  color:var(--fill);
  font-size:25px;
  line-height:1.35;
}
.article-cover{
  display:block;
  max-width:345px;
  justify-self:end;
  box-shadow:0 18px 54px rgba(0,0,0,.26);
}

/* Article reading layout */
.article-layout{
  padding:70px 0 92px;
}
.article-layout-grid{
  display:grid;
  grid-template-columns:230px minmax(0,780px);
  gap:70px;
  justify-content:center;
  align-items:start;
}
.article-toc{
  position:relative;
}
.article-toc-inner{
  position:sticky;
  top:28px;
  padding-right:24px;
  border-right:1px solid var(--border);
}
.article-toc a{
  display:block;
  padding:7px 0;
  color:var(--muted-on-light);
  font-size:14px;
  line-height:1.35;
  text-decoration:none;
}
.article-toc a:hover{
  color:var(--accent);
}
.article-toc a span{
  color:var(--accent);
  margin-right:5px;
}

.article-body{
  min-width:0;
}
.article-section{
  padding:0 0 58px;
  margin:0 0 58px;
  border-bottom:1px solid var(--border);
}
.article-section:last-of-type{
  border-bottom:0;
}
.article-kicker{
  margin:0 0 10px;
  color:var(--accent);
  font-size:14px;
  line-height:1.2;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.article-section h2{
  margin-bottom:20px;
  font-size:38px;
  line-height:1.08;
}
.article-section h3{
  margin:28px 0 10px;
  color:var(--accent);
  font-size:22px;
  line-height:1.25;
}
.article-section > p,
.article-section li{
  color:var(--muted-on-light);
  font-size:18px;
  line-height:1.65;
}
.article-section > p{
  margin:0 0 18px;
}
.article-section ul,
.article-section ol{
  margin:16px 0 22px;
  padding-left:24px;
}
.article-section li + li{
  margin-top:7px;
}
.article-deck{
  color:var(--accent) !important;
  font-size:23px !important;
  line-height:1.38 !important;
  margin-bottom:26px !important;
}

.article-callout{
  margin:26px 0;
  padding:22px 24px;
  background:rgba(203,174,255,.12);
  border-left:3px solid var(--accent);
}
.article-callout p{
  margin:0;
  color:var(--muted-on-light);
  font-size:17px;
  line-height:1.55;
}
.article-callout p + p{
  margin-top:18px;
}
.article-callout strong{
  color:var(--accent);
}

.article-brand-note{
  display:grid;
  grid-template-columns:130px 1fr;
  gap:24px;
  align-items:center;
  margin:30px 0;
  padding:24px;
  background:#fff9e8;
  border-left:3px solid var(--gold);
}
.article-brand-note img{
  display:block;
  width:100%;
  max-width:115px;
}
.article-brand-note h3{
  margin:0 0 8px;
  color:#6b5200;
}
.article-brand-note p{
  margin:0;
  color:var(--muted-on-light);
  font-size:16px;
  line-height:1.5;
}
.article-brand-note p + p{
  margin-top:12px;
}
.article-brand-note strong{
  color:var(--accent);
}

.article-section blockquote{
  margin:28px 0;
  padding:20px 24px;
  border-left:3px solid var(--accent);
  background:rgba(203,174,255,.14);
  color:#4f3861;
  font-size:20px;
  line-height:1.5;
}
.article-section blockquote.gold{
  border-left-color:var(--gold);
  background:#fff9e8;
  color:#6b5200;
}

.step-heading{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:18px;
  align-items:start;
  margin-bottom:24px;
}
.step-heading h2{
  margin:0;
}
.step-hex{
  width:56px;
  height:50px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--accent);
  color:var(--light);
  font-size:20px;
  clip-path:polygon(25% 0,75% 0,100% 50%,75% 100%,25% 100%,0 50%);
}

.article-question-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  margin:24px 0;
  background:var(--border);
  border:1px solid var(--border);
}
.article-question-grid > *{
  margin:0;
  padding:22px;
  background:#fff;
}
.article-question-grid ul{
  margin:0;
}
.article-question-grid h3{
  margin-top:0;
}

.article-flow{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  margin:26px 0;
  border:1px solid var(--border);
}
.article-flow div{
  padding:18px;
  background:rgba(203,174,255,.13);
  text-align:center;
  border-right:1px solid var(--border);
}
.article-flow div:last-child{
  border-right:0;
}
.article-flow .gold{
  background:#fff9e8;
}
.article-flow strong,
.article-flow span{
  display:block;
}
.article-flow strong{
  color:var(--accent);
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:.04em;
}
.article-flow .gold strong{
  color:#8b6800;
}
.article-flow span{
  margin-top:8px;
  color:var(--muted-on-light);
  font-size:14px;
  line-height:1.45;
}

.article-table-wrap{
  overflow-x:auto;
  margin:28px 0;
}
.article-table{
  width:100%;
  border-collapse:collapse;
  min-width:620px;
  font-size:14px;
}
.article-table th{
  padding:12px 14px;
  background:var(--accent);
  color:var(--light);
  text-align:left;
  font-weight:500;
}
.article-table td{
  padding:13px 14px;
  vertical-align:top;
  color:var(--muted-on-light);
  border-bottom:1px solid var(--border);
}
.article-table tr:nth-child(even) td{
  background:rgba(203,174,255,.08);
}
.article-table td:first-child{
  color:var(--accent);
  font-weight:500;
}

.article-gold-callout{
  margin:28px 0;
  padding:18px 22px;
  border-left:3px solid var(--gold);
  background:#fff9e8;
  color:#6b5200;
  font-size:18px;
  line-height:1.5;
}
.article-gold-callout.centered{
  text-align:center;
}

.article-summary-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px 32px;
  margin:28px 0;
}
.article-summary-grid p{
  margin:0;
  color:var(--muted-on-light);
  font-size:16px;
  line-height:1.5;
}
.article-summary-grid strong{
  color:var(--accent);
}

.sources li{
  font-size:14px;
  line-height:1.5;
}
.article-end-cta{
  margin-top:20px;
  padding:42px;
  background:var(--dark);
}
.article-end-cta h2{
  color:var(--light);
}
.article-end-cta p:not(.eyebrow){
  color:var(--muted-on-dark);
  font-size:18px;
  line-height:1.55;
}

/* Slightly tighten desktop navigation after adding Insights. */
@media(min-width:861px){
  .nav{
    gap:15px;
  }
  .nav a{
    font-size:14px;
  }
}

@media(max-width:900px){
  .insight-feature,
  .article-hero-grid{
    grid-template-columns:1fr;
  }
  .article-cover{
    justify-self:start;
    max-width:300px;
  }
  .article-layout-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .article-toc{
    display:none;
  }
  .home-featured-insight{
    grid-template-columns:150px 1fr;
  }
}

@media(max-width:650px){
  .social-follow{
    flex-direction:column;
    gap:10px;
  }
  .insight-feature{
    gap:32px;
  }
  .insight-cover{
    max-width:270px;
  }
  .home-featured-insight{
    grid-template-columns:1fr;
  }
  .home-featured-insight__cover{
    width:180px;
  }
  .article-hero{
    padding:58px 0;
  }
  .article-hero-subtitle{
    font-size:21px;
  }
  .article-cover{
    max-width:220px;
  }
  .article-layout{
    padding:50px 0 70px;
  }
  .article-section{
    padding-bottom:42px;
    margin-bottom:42px;
  }
  .article-section h2{
    font-size:31px;
  }
  .article-deck{
    font-size:20px !important;
  }
  .article-section > p,
  .article-section li{
    font-size:17px;
  }
  .step-heading{
    grid-template-columns:48px 1fr;
    gap:14px;
  }
  .step-hex{
    width:44px;
    height:39px;
    font-size:16px;
  }
  .article-question-grid,
  .article-summary-grid,
  .article-flow{
    grid-template-columns:1fr;
  }
  .article-flow div{
    border-right:0;
    border-bottom:1px solid var(--border);
  }
  .article-flow div:last-child{
    border-bottom:0;
  }
  .article-brand-note{
    grid-template-columns:1fr;
  }
  .article-brand-note img{
    max-width:90px;
  }
  .article-end-cta{
    padding:28px 22px;
  }
}

.article-brand-line{
  color:var(--accent) !important;
  font-size:16px !important;
  letter-spacing:.08em;
}
.article-brand-line strong{
  color:#8b6800;
  font-weight:500;
}