/* ============================================================
   product-skill · field guide v2 — design system
   Tokens extracted faithfully from the live landing page
   (Newsreader / Hanken Grotesk / Space Mono · lavender on
   warm cream, alternating with dark ink bands).
   No build step. Hand-authored. View-source-friendly.
   ============================================================ */

/* ---- 1. Tokens ------------------------------------------- */
:root {
  /* brand */
  --accent:      #7c3aed;   /* lavender — the one accent (live-page match, R3-6) */
  --accent-deep: #6d28d9;
  --accent-on-dark: #a78bfa; /* small lavender text on dark bands — 6.8:1 on --ink-900 */

  /* ink scale (text on cream) */
  --ink-900: #16130e;       /* darkest — dark-band background */
  --ink-800: #1a1712;       /* primary body */
  --ink-600: #56503f;       /* secondary body */
  --ink-400: #7a7263;       /* tertiary / captions */

  /* cream field */
  --cream:      #f4f1ea;     /* page + primary band */
  --cream-2:    #ebe6db;     /* alternate band */
  --cream-card: #f9f7f2;     /* card face on cream */
  --paper:      #faf8f2;     /* raised chip / label */

  /* dark band */
  --on-dark:    #f0ebe0;     /* primary text on dark */
  --on-dark-70: rgba(240,235,224,.72);
  --on-dark-55: rgba(240,235,224,.55);

  /* semantic */
  --fix:  #2f6f5e;           /* green — the corrective / positive */
  --tell: #a8442c;           /* deep rust — the failure mode */

  /* discipline hues (always paired with a text label, never color alone) */
  --disc-calibration: #c99a3a;  /* amber — context & seniority */
  --disc-decision:    #3b5bdb;  /* blue — decision-making (violet freed for brand, R3-6) */

  /* lines */
  --hair:      rgba(26,23,18,.12);
  --hair-soft: rgba(26,23,18,.08);
  --hair-dark: rgba(240,235,224,.16);

  /* type */
  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans:  'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --mono:  'Space Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* metrics */
  --maxw: 1180px;
  --pad: 32px;
  --band-y: clamp(64px, 8.5vw, 108px);
  --radius: 6px;
  --shadow: 0 6px 26px rgba(20,16,10,.10);
}

/* ---- 2. Reset & base ------------------------------------ */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--ink-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--accent); color: #fff; }

/* Reveal base: elements start hidden ONLY when JS opts in via html.anim.
   With no JS (or reduced motion) html.anim is never set, so everything
   renders fully visible. This is the headless / no-JS failsafe contract. */
html.anim [data-reveal],
html.anim [data-hero-line]        { opacity: 0; }
html.anim [data-stagger] > *      { opacity: 0; }
[data-reveal], [data-stagger] > * { will-change: transform, opacity; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  /* belt-and-braces: never leave content hidden for reduced-motion users */
  [data-reveal], [data-hero-line], [data-stagger] > * { opacity: 1 !important; }
}

/* ---- 3. Layout primitives ------------------------------- */
.ps-band { padding: var(--band-y) 0; position: relative; scroll-margin-top: 64px; }
.ps-band--cream   { background: var(--cream); }
.ps-band--cream2  { background: var(--cream-2); }
.ps-band--dark    { background: var(--ink-900); color: var(--on-dark); }
.ps-band--tight   { padding-top: clamp(40px, 5vw, 64px); }

.ps-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.ps-measure { max-width: 62ch; }

/* ---- 4. Typography -------------------------------------- */
.ps-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
}
.ps-band--dark .ps-eyebrow { color: var(--accent-on-dark); }

.ps-h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 5.2vw, 58px);
  line-height: 1.03;
  letter-spacing: -.018em;
  margin: 0;
}
.ps-h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.05;
  letter-spacing: -.015em;
  margin: 0 0 16px;
}
.ps-h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.15;
  margin: 0 0 10px;
}
.ps-h1 em, .ps-h2 em, .ps-h3 em { font-style: italic; color: var(--accent); }
.ps-lead {
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.55;
  color: var(--ink-600);
  margin: 22px 0 0;
}
.ps-band--dark .ps-lead { color: var(--on-dark-70); }
.ps-body { font-size: 16px; line-height: 1.6; color: var(--ink-600); }
.ps-band--dark .ps-body { color: var(--on-dark-70); }
.ps-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-400);
}

/* ---- 5. Sticky header — the 6 doors --------------------- */
.ps-header {
  position: sticky; top: 0; z-index: 70;
  background: rgba(244,241,234,.9);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hair);
}
.ps-header__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 11px var(--pad);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.ps-brand {
  font-family: var(--mono);
  font-size: 12.5px; letter-spacing: .04em;
  color: var(--ink-800); text-decoration: none; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 9px;
}
.ps-brand__mark {
  width: 16px; height: 16px; border-radius: 5px; background: var(--ink-900);
  position: relative; flex-shrink: 0;
}
.ps-brand__mark::after {
  content: ""; position: absolute; inset: 5px;
  border-radius: 50%; background: var(--accent);
}
.ps-doors { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.ps-door {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .03em;
  text-decoration: none; color: var(--ink-600);
  padding: 6px 11px; border-radius: 7px; white-space: nowrap;
  transition: background .18s ease, color .18s ease;
}
.ps-door:hover { background: rgba(26,23,18,.06); color: var(--ink-900); }
.ps-door[aria-current="page"] {
  color: var(--ink-900); background: rgba(124,58,237,.14);
  box-shadow: inset 0 0 0 1px rgba(124,58,237,.3);
}
.ps-door--disabled {
  color: var(--ink-400); cursor: not-allowed; position: relative;
}
.ps-door--disabled:hover { background: transparent; color: var(--ink-400); }
.ps-door--disabled::after {
  content: "soon"; font-size: 8px; letter-spacing: .08em;
  color: var(--accent-deep); margin-left: 5px; vertical-align: 2px;
}

/* ---- 6. Progress bar ------------------------------------ */
.ps-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: transparent; z-index: 80; pointer-events: none;
}
.ps-progress__fill {
  height: 100%; width: 0%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(124,58,237,.5);
}

/* ---- 7. Scroll-spy dot rail ----------------------------- */
.ps-rail {
  position: fixed; right: 16px; top: 50%; transform: translateY(-50%);
  z-index: 60; display: flex; flex-direction: column; gap: 3px;
  background: rgba(247,244,237,.96);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid var(--hair); box-shadow: 0 6px 26px rgba(20,16,10,.18);
  border-radius: 20px; padding: 12px 11px;
}
.ps-rail__item {
  position: relative; display: flex; align-items: center; justify-content: center;
  background: none; border: 0; padding: 4px 3px; cursor: pointer; text-decoration: none;
}
.ps-rail__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(26,23,18,.22); transition: all .25s ease; flex-shrink: 0;
}
.ps-rail__item:hover .ps-rail__dot { background: var(--accent); }
.ps-rail__item.active .ps-rail__dot { background: var(--accent); transform: scale(1.5); }
.ps-rail__label {
  position: absolute; right: 22px; top: 50%;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .03em;
  color: var(--ink-800); background: var(--paper);
  border: 1px solid var(--hair); padding: 4px 9px; border-radius: 6px;
  box-shadow: 0 4px 18px rgba(20,16,10,.28);
  opacity: 0; transform: translateY(-50%) translateX(6px);
  transition: opacity .22s ease, transform .22s ease;
  white-space: nowrap; pointer-events: none;
}
.ps-rail__item:hover .ps-rail__label { opacity: 1; transform: translateY(-50%); }
.ps-rail__item.active .ps-rail__label {
  opacity: 1; background: var(--accent); color: #fff;
  border-color: var(--accent); transform: translateY(-50%);
}

/* ---- 8. Breadcrumb + discipline chip -------------------- */
.ps-crumb {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .05em;
  color: var(--on-dark-55); margin-bottom: 26px;
}
.ps-crumb a { color: var(--on-dark-70); text-decoration: none; }
.ps-crumb a:hover { color: var(--accent); }
.ps-crumb__sep { opacity: .5; }
.ps-disc {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--on-dark);
  border: 1px solid var(--hair-dark); border-radius: 40px; padding: 4px 11px 4px 9px;
}
.ps-disc__dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }

/* ---- 9. Hero one-liner band ----------------------------- */
.ps-hero__line {
  max-width: 20ch;
}
.ps-hero__oneliner {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(30px, 4.8vw, 54px); line-height: 1.06;
  letter-spacing: -.017em; margin: 0; max-width: 24ch;
}
.ps-hero__oneliner em { font-style: italic; color: var(--accent); }
.ps-hero__sub {
  font-size: clamp(16px, 1.8vw, 19px); line-height: 1.55;
  color: var(--on-dark-70); margin: 26px 0 0; max-width: 58ch;
}

/* ---- 10. Diagram stage ---------------------------------- */
.ps-stage {
  margin-top: clamp(38px, 5vw, 62px);
  border: 1px solid var(--hair-dark); border-radius: 10px;
  background: rgba(240,235,224,.03);
  padding: clamp(22px, 3.4vw, 40px);
}
.ps-stage__cap {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--on-dark-55);
  margin: 18px 0 0; text-align: center;
}

/* --- Diagram A: switchboard (one question → eight answers) --- */
.ps-switch { display: grid; grid-template-columns: minmax(190px, 260px) 1fr; gap: clamp(20px, 3vw, 44px); align-items: center; }
.ps-switch__q {
  border: 1px solid var(--hair-dark); border-radius: 8px; padding: 20px 22px;
  background: rgba(124,58,237,.08);
}
.ps-switch__q .ps-kicker { color: var(--accent); }
.ps-switch__q p {
  font-family: var(--serif); font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.18; margin: 10px 0 0; color: var(--on-dark);
}
.ps-switch__list { display: flex; flex-direction: column; }
.ps-switch__row {
  display: grid; grid-template-columns: 130px 1fr; gap: 14px; align-items: baseline;
  padding: 10px 0; border-top: 1px solid var(--hair-dark);
}
.ps-switch__row:first-child { border-top: 0; }
.ps-switch__sector {
  font-family: var(--mono); font-size: 11px; letter-spacing: .04em;
  color: var(--on-dark); display: inline-flex; align-items: baseline; gap: 7px;
}
.ps-switch__ans { font-size: 14.5px; line-height: 1.4; color: var(--on-dark-70); }
.ps-switch__ans b { color: var(--on-dark); font-weight: 600; }

/* --- Diagram B: two doors (reversibility) --- */
.ps-doors2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(16px, 2.6vw, 30px); }
.ps-door2 {
  border: 1px solid var(--hair-dark); border-radius: 10px; padding: 26px 24px;
  position: relative; overflow: hidden;
}
.ps-door2--t1 { background: linear-gradient(180deg, rgba(168,68,44,.14), rgba(168,68,44,.03)); }
.ps-door2--t2 { background: linear-gradient(180deg, rgba(47,111,94,.14), rgba(47,111,94,.03)); }
.ps-door2__glyph {
  width: 46px; height: 60px; border-radius: 4px 4px 2px 2px; margin-bottom: 18px;
  position: relative; border: 2px solid var(--on-dark);
}
.ps-door2--t1 .ps-door2__glyph { border-color: var(--tell); background: rgba(168,68,44,.14); }
.ps-door2--t2 .ps-door2__glyph { border-color: var(--fix); background: rgba(47,111,94,.10); }
.ps-door2__glyph::after { /* handle */
  content: ""; position: absolute; top: 50%; width: 6px; height: 6px;
  border-radius: 50%; transform: translateY(-50%);
}
.ps-door2--t1 .ps-door2__glyph::after { right: 7px; background: var(--tell); }
.ps-door2--t2 .ps-door2__glyph::after { right: 7px; background: var(--fix); box-shadow: -13px 0 0 rgba(47,111,94,.35); }
.ps-door2__type {
  font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
}
.ps-door2--t1 .ps-door2__type { color: var(--tell); }
.ps-door2--t2 .ps-door2__type { color: var(--fix); }
.ps-door2__name {
  font-family: var(--serif); font-size: clamp(20px, 2.4vw, 27px); line-height: 1.1;
  margin: 8px 0 12px; color: var(--on-dark);
}
.ps-door2__do { font-size: 14.5px; line-height: 1.5; color: var(--on-dark-70); margin: 0; }
.ps-door2__do b { color: var(--on-dark); }

/* ---- 11. Takeaway trio (core-3) ------------------------- */
.ps-takeaways {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--hair); border: 1px solid var(--hair);
  border-radius: var(--radius); overflow: hidden;
}
.ps-band--dark .ps-takeaways { background: var(--hair-dark); border-color: var(--hair-dark); }
.ps-take {
  background: var(--cream-card); padding: 28px 26px;
  display: flex; flex-direction: column; gap: 10px;
}
.ps-band--dark .ps-take { background: #1c1913; }
.ps-band--cream2 .ps-take { background: var(--cream); }
.ps-take__n {
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em;
  color: var(--accent);
}
.ps-take__t {
  font-family: var(--serif); font-size: 20px; line-height: 1.18; margin: 0;
}
.ps-band--dark .ps-take__t { color: var(--on-dark); }
.ps-take__b { font-size: 14.5px; line-height: 1.55; color: var(--ink-600); margin: 0; }
.ps-band--dark .ps-take__b { color: var(--on-dark-70); }

/* ---- 12. Sector cards ----------------------------------- */
.ps-grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
}
.ps-sector {
  background: var(--cream-card); border: 1px solid var(--hair);
  border-radius: var(--radius); padding: 24px 22px;
  display: flex; flex-direction: column;
  color: var(--ink-800); /* explicit root ink so dark-band reuse can't inherit on-dark text */
}
.ps-sector__head { display: flex; align-items: center; gap: 11px; margin-bottom: 4px; }
.ps-sector__glyph {
  width: 30px; height: 30px; border-radius: 7px; flex-shrink: 0;
  display: grid; place-items: center;
  font-family: var(--mono); font-size: 13px; font-weight: 700; color: #fff;
}
.ps-sector__name { font-family: var(--serif); font-weight: 500; font-size: 21px; margin: 0; }
.ps-sector__tag {
  font-family: var(--mono); font-size: 10px; letter-spacing: .07em;
  text-transform: uppercase; color: var(--ink-400); margin: 2px 0 16px;
}
.ps-checklist { list-style: none; margin: 0 0 4px; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.ps-checklist li {
  position: relative; padding-left: 22px; font-size: 14px; line-height: 1.5; color: var(--ink-600);
}
.ps-checklist li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 11px; height: 7px; border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent); transform: rotate(-45deg);
}
.ps-checklist li b { color: var(--ink-800); font-weight: 600; }
.ps-checklist li mono, .ps-checklist li .m {
  font-family: var(--mono); font-size: 12.5px; color: var(--ink-800);
}

/* regulatory callout inside a sector card */
.ps-reg {
  margin-top: 14px; border-left: 2px solid var(--disc-calibration);
  background: rgba(201,154,58,.07); border-radius: 0 4px 4px 0;
  padding: 12px 14px;
}
.ps-reg__label {
  font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent-deep); margin: 0 0 6px;
  display: inline-flex; align-items: center; gap: 6px;
}
.ps-reg__label::before {
  content: "!"; display: grid; place-items: center;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--disc-calibration); color: #fff; font-size: 10px; font-weight: 700;
}
.ps-reg p { margin: 0; font-size: 13px; line-height: 1.5; color: var(--ink-600); }
.ps-reg p + p { margin-top: 7px; }
.ps-reg b { color: var(--ink-800); }

/* ---- 13. Calibration-trap callout ----------------------- */
.ps-trap {
  border: 1px solid rgba(124,58,237,.4); background: rgba(124,58,237,.08);
  border-radius: var(--radius); padding: 22px 24px;
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start;
}
.ps-band--dark .ps-trap { background: rgba(124,58,237,.1); border-color: rgba(124,58,237,.35); }
.ps-trap__icon {
  width: 34px; height: 34px; border-radius: 8px; flex-shrink: 0;
  background: var(--accent); color: #fff; display: grid; place-items: center;
  font-family: var(--serif); font-size: 20px; font-weight: 600; font-style: italic;
}
.ps-trap__label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent-deep); margin: 0 0 5px;
}
.ps-band--dark .ps-trap__label { color: var(--accent-on-dark); }
.ps-trap p.ps-trap__body { margin: 0; font-size: 15px; line-height: 1.55; color: var(--ink-600); }
.ps-band--dark .ps-trap__body { color: var(--on-dark-70); }
.ps-trap__body b { color: var(--ink-800); }
.ps-band--dark .ps-trap__body b { color: var(--on-dark); }

/* ---- 14. Confidence chip -------------------------------- */
.ps-chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 10px; letter-spacing: .06em; text-transform: uppercase;
  border: 1px solid var(--hair); border-radius: 40px; padding: 4px 10px 4px 8px;
  color: var(--ink-600); background: var(--paper);
}
.ps-chip__meter { display: inline-flex; gap: 2px; }
.ps-chip__seg { width: 4px; height: 10px; border-radius: 1px; background: rgba(26,23,18,.16); }
.ps-chip__seg.on { background: currentColor; }
.ps-chip--directional { color: var(--accent-deep); border-style: dashed; border-color: rgba(124,58,237,.5); }
.ps-chip--moderate { color: var(--disc-calibration); }
.ps-chip--high { color: var(--fix); }

/* ---- 15. Base-rate stat tiles --------------------------- */
.ps-stats { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.ps-stat {
  background: var(--cream-card); border: 1px solid var(--hair);
  border-radius: var(--radius); padding: 26px 24px; display: flex; flex-direction: column; gap: 12px;
  color: var(--ink-800); /* explicit root ink so dark-band reuse can't inherit on-dark text */
}
.ps-band--dark .ps-stat { background: #1c1913; border-color: var(--hair-dark); color: var(--on-dark); }
.ps-stat__fig {
  font-family: var(--serif); font-weight: 500; font-size: clamp(38px, 5vw, 54px);
  line-height: 1; color: var(--accent); letter-spacing: -.02em;
}
.ps-stat__label { font-size: 14.5px; line-height: 1.5; color: var(--ink-600); margin: 0; }
.ps-band--dark .ps-stat__label { color: var(--on-dark-70); }
.ps-stat__label b { color: var(--ink-800); }
.ps-band--dark .ps-stat__label b { color: var(--on-dark); }
.ps-stat__src { font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em; color: var(--ink-400); }
/* On the dark base-rate band the card inverts to dark ink#1c1913 — the tertiary
   ink source label (Pendo, McKinsey…) would be near-invisible, so lift it. */
.ps-band--dark .ps-stat__src { color: var(--on-dark-70); }

/* ---- 16. Heuristic cards -------------------------------- */
.ps-heur {
  background: var(--cream-card); border: 1px solid var(--hair);
  border-radius: var(--radius); padding: 22px 22px;
  display: flex; flex-direction: column; gap: 8px;
  color: var(--ink-800); /* explicit root ink so dark-band reuse can't inherit on-dark text */
}
.ps-heur--pointer { background: transparent; border-style: dashed; }
.ps-heur__top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.ps-heur__name { font-family: var(--serif); font-weight: 500; font-size: 20px; margin: 0; }
.ps-heur__src { font-family: var(--mono); font-size: 10px; letter-spacing: .04em; color: var(--accent); white-space: nowrap; }
.ps-heur__body { font-size: 14.5px; line-height: 1.55; color: var(--ink-600); margin: 0; }
.ps-heur__body b { color: var(--ink-800); }
.ps-heur__tells { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.ps-heur__tells li {
  position: relative; padding-left: 20px; font-size: 13.5px; line-height: 1.45; color: var(--ink-600);
}
.ps-heur__tells li::before {
  content: ""; position: absolute; left: 2px; top: 7px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--tell);
}

/* ---- 17. Tell → Fix contrast wall ----------------------- */
.ps-wall { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 380px), 1fr)); }
.ps-tf {
  border: 1px solid var(--hair); border-radius: var(--radius); overflow: hidden;
  background: var(--cream-card); display: grid; grid-template-rows: auto 1fr auto;
  color: var(--ink-800); /* cards sit on the dark band — reset inherited light ink */
}
.ps-tf__name {
  font-family: var(--serif); font-weight: 500; font-size: 19px; margin: 0;
  padding: 16px 18px 12px;
}
.ps-tf__name .ps-tf__era {
  font-family: var(--mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); vertical-align: 3px; margin-left: 8px;
}
/* Acronym expansion under a tell→fix name — a gloss, never the source tell/fix text. */
.ps-tf__gloss {
  display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .02em;
  text-transform: none; font-weight: 400; color: var(--ink-400); margin-top: 3px;
}
.ps-tf__split { display: grid; grid-template-columns: 1fr auto 1fr; align-items: stretch; }
.ps-tf__cell { padding: 14px 18px; }
.ps-tf__cell--tell { background: rgba(168,68,44,.06); }
.ps-tf__cell--fix  { background: rgba(47,111,94,.07); }
.ps-tf__tag {
  font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 6px; margin-bottom: 7px;
}
.ps-tf__cell--tell .ps-tf__tag { color: var(--tell); }
.ps-tf__cell--fix  .ps-tf__tag { color: var(--fix); }
.ps-tf__tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.ps-tf__cell--fix .ps-tf__tag::before {
  border-radius: 0; width: 9px; height: 9px; background: none;
  border-right: 2px solid var(--fix); border-bottom: 2px solid var(--fix);
  transform: rotate(45deg) translateY(-1px);
}
.ps-tf__text { font-size: 13.5px; line-height: 1.5; color: var(--ink-600); margin: 0; }
.ps-tf__arrow {
  display: grid; place-items: center; padding: 0 4px; color: var(--ink-400);
  font-family: var(--mono); font-size: 15px;
}

/* ---- 18. Related-cards row ------------------------------ */
.ps-related { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.ps-rel {
  display: block; text-decoration: none; background: var(--cream-card);
  border: 1px solid var(--hair); border-radius: var(--radius); padding: 22px 22px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.ps-band--dark .ps-rel { background: #1c1913; border-color: var(--hair-dark); }
.ps-rel:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: rgba(124,58,237,.5); }
.ps-rel__kick { font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.ps-rel__name { font-family: var(--serif); font-weight: 500; font-size: 20px; margin: 10px 0 6px; color: var(--ink-800); }
.ps-band--dark .ps-rel__name { color: var(--on-dark); }
.ps-rel__desc { font-size: 13.5px; line-height: 1.5; color: var(--ink-600); margin: 0; }
.ps-band--dark .ps-rel__desc { color: var(--on-dark-70); }
.ps-rel__arrow { color: var(--accent); font-family: var(--mono); font-size: 13px; margin-top: 12px; display: inline-block; }
.ps-rel--soon { opacity: .6; }
.ps-rel--soon:hover { transform: none; box-shadow: none; border-color: var(--hair); }

/* ---- 19. Footer stamp ----------------------------------- */
.ps-footer {
  border-top: 1px solid var(--hair-dark);
  padding: 34px var(--pad); text-align: center;
}
.ps-footer__stamp {
  font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--on-dark-55);
}
.ps-footer__stamp a { color: var(--on-dark-70); text-decoration: none; }
.ps-footer__stamp a:hover { color: var(--accent); }

/* ---- 19b. Cmd-K search overlay (stub) ------------------- */
.ps-search {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(22,19,14,.5); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  display: flex; align-items: flex-start; justify-content: center; padding: 14vh 20px 20px;
}
.ps-search[hidden] { display: none; }
.ps-search__panel {
  position: relative;
  width: min(560px, 100%); background: var(--cream); border: 1px solid var(--hair);
  border-radius: 12px; box-shadow: 0 24px 70px rgba(20,16,10,.4); overflow: hidden;
}
.ps-search__input {
  width: 100%; border: 0; border-bottom: 1px solid var(--hair);
  padding: 18px 56px 18px 20px; font-family: var(--sans); font-size: 17px; color: var(--ink-800);
  background: var(--cream-card); outline: none;
}
.ps-search__input::placeholder { color: var(--ink-400); }
.ps-search__close {
  position: absolute; top: 9px; right: 9px; z-index: 3; padding: 0;
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid var(--hair); background: var(--paper);
  color: var(--ink-600); font-size: 22px; line-height: 1;
  display: grid; place-items: center; cursor: pointer;
}
.ps-search__close:hover {
  background: rgba(124,58,237,.12); color: var(--ink-900); border-color: rgba(124,58,237,.5);
}
.ps-search__results { max-height: 46vh; overflow-y: auto; padding: 8px; }
.ps-search__empty { font-size: 14px; line-height: 1.55; color: var(--ink-400); padding: 18px 14px; margin: 0; }
.ps-search__hit {
  display: block; text-decoration: none; padding: 11px 14px; border-radius: 7px;
}
.ps-search__hit:hover { background: rgba(124,58,237,.1); }
.ps-search__hit strong { display: block; font-family: var(--serif); font-weight: 500; font-size: 16px; color: var(--ink-800); }
.ps-search__hit span { font-size: 13px; color: var(--ink-600); }
.ps-search__hint {
  font-family: var(--mono); font-size: 10px; letter-spacing: .05em; color: var(--ink-400);
  padding: 9px 16px; border-top: 1px solid var(--hair); background: var(--cream-2);
}

/* ---- 20. Section header helper -------------------------- */
.ps-sechead { margin-bottom: clamp(34px, 4vw, 52px); }
.ps-sechead .ps-h2 { max-width: 22ch; }

/* ---- 21. Focus & a11y ----------------------------------- */
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px;
}
.ps-skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink-900); color: var(--on-dark);
  padding: 10px 16px; font-family: var(--mono); font-size: 12px; border-radius: 0 0 6px 0;
}
.ps-skip:focus { left: 0; }
.ps-visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- 22. Responsive ------------------------------------- */
@media (max-width: 860px) {
  .ps-takeaways { grid-template-columns: 1fr; }
  .ps-switch { grid-template-columns: 1fr; }
  .ps-tf__split { grid-template-columns: 1fr; }
  .ps-tf__arrow { padding: 4px 0; transform: rotate(90deg); }
  .ps-rail { display: none; }
}
@media (max-width: 680px) {
  .ps-doors2 { grid-template-columns: 1fr; }
  .ps-header__inner { flex-wrap: wrap; gap: 10px; }
  .ps-doors { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 2px; }
  .ps-switch__row { grid-template-columns: 1fr; gap: 3px; }
  .ps-stat__fig { font-size: 42px; }
}
@media (max-width: 420px) {
  :root { --pad: 20px; }
  .ps-door { padding: 6px 8px; }
}

/* ---- accent small-text in dark contexts → on-dark token (Codex r3) ---- */
.ps-band--dark .ps-crumb a:hover,
.ps-band--dark .ps-switch__q .ps-kicker,
.ps-band--dark .ps-rel__kick,
.ps-band--dark .ps-rel__arrow,
.ps-band--dark .ps-footer__stamp a:hover,
.ps-band--dark .ps-take__n,
.ps-band--dark .ps-stat__fig,
.ps-band--dark .ps-h3 em { color: var(--accent-on-dark); }