/* ============================================================
   Verified Demand sales page — styles (PASS 2)
   "Research terminal on paper." Light only. Editorial 3-column grid.
   Loud in SCALE, ELEVATION, and DATA-VIZ; quiet in color and motion.
   ZERO JavaScript — any motion is CSS-only and disabled under
   prefers-reduced-motion.
   ============================================================ */

/* ---------- Self-hosted fonts (no CDN) ---------- */

@font-face {
  font-family: "Inter Tight";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/inter-tight-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter Tight";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/inter-tight-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/source-serif-4-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/source-serif-4-latin-400-italic.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
}

/* ---------- Tokens ---------- */

:root {
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-sans: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Type scale — fluid where noted */
  --fs-display: clamp(3rem, 1.9rem + 3.4vw, 4.75rem); /* 48 → 76px */
  --fs-stat: clamp(3.25rem, 2rem + 5vw, 5rem);        /* 52 → 80px */
  --fs-h2: clamp(1.9rem, 1.5rem + 1.3vw, 2.375rem);   /* 30 → 38px */
  --fs-h3: 1.375rem;     /* 22px */
  --fs-lead: 1.3125rem;  /* 21px */
  --fs-body: 1.125rem;   /* 18px */
  --fs-small: 0.9375rem; /* 15px */
  --fs-eyebrow: 0.8125rem; /* 13px */
  --fs-mono: 0.875rem;   /* 14px */

  /* Color */
  --bg: #FBFAF7;
  --bg-sunken: #F3F1EC;
  --fg: #1A1A18;
  --fg-muted: #5C5A54;
  --border: #DEDBD3;
  --border-strong: #B8B4A9;
  --accent: #1D5B4E;
  --accent-dark: #16463C;
  --accent-ink: #FFFFFF;
  --accent-soft: #E4EDE9;
  --warn: #9A3412;
  --warn-soft: #F6E9E2;

  /* Elevation */
  --shadow-1: 0 1px 2px rgba(26, 26, 24, .04), 0 8px 24px -12px rgba(26, 26, 24, .10);
  --shadow-cta: 0 1px 2px rgba(22, 70, 60, .24), inset 0 1px 0 rgba(255, 255, 255, .12);
  --shadow-cta-hover: 0 2px 4px rgba(22, 70, 60, .30), 0 8px 18px -10px rgba(22, 70, 60, .35), inset 0 1px 0 rgba(255, 255, 255, .14);

  /* Spacing (8pt) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-8: 48px;
  --space-10: 64px;
  --space-12: 96px;
  --space-16: 128px;

  /* Layout */
  --maxw: 68ch;        /* prose measure */
  --maxw-wide: 1240px; /* shared rail width */
  --gutter: clamp(20px, 4vw, 56px);
  --section-y: clamp(64px, 7vw, 96px);
}

/* ---------- Reset ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-serif);
  font-size: var(--fs-body);
  line-height: 1.58;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
}

.tnum {
  font-variant-numeric: tabular-nums;
}

/* ---------- Skip link ---------- */

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  padding: var(--space-2) var(--space-4);
  border-radius: 4px;
  text-decoration: none;
  transition: top 120ms ease-out;
}
.skip-link:focus {
  top: var(--space-4);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- Focus (global) ---------- */

a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
.btn--primary:focus-visible {
  outline: 2px solid var(--accent-ink);
  outline-offset: 2px;
}

/* ---------- Shared containers ---------- */

.wrap--wide,
.rail {
  width: 100%;
  max-width: calc(var(--maxw-wide) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
/* Plain rail (CTA + footer): cap prose to the measure, left-aligned */
.rail > .lead,
.rail > .disclaimer,
.rail > .brand-line {
  max-width: var(--maxw);
  margin-inline: 0;
}

/* ---------- Editorial 3-column grid (P1) ----------
   label-spine · main · aside. Charts/tables span main+aside.        */

.section-grid {
  display: grid;
  grid-template-columns: 148px minmax(0, 720px) minmax(220px, 1fr);
  column-gap: var(--space-6);
  row-gap: var(--space-8);
  align-items: start;
}
.section-grid > .section-mark--spine { grid-column: 1; margin: 0; }
.section-grid > .section-main { grid-column: 2; }
.section-grid > .section-aside { grid-column: 3; align-self: start; }
.section-grid > .section-wide { grid-column: 2 / -1; }

@media (max-width: 980px) {
  .section-grid {
    grid-template-columns: 1fr;
    row-gap: var(--space-6);
  }
  .section-grid > .section-mark--spine,
  .section-grid > .section-main,
  .section-grid > .section-aside,
  .section-grid > .section-wide {
    grid-column: 1;
  }
}

/* ---------- Masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 247, .92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border-strong);
}
.masthead__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding-block: var(--space-3);
}
.masthead__id {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-family: var(--font-sans);
}
.masthead__brand {
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.masthead__product {
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}
.masthead__meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--fg-muted);
  font-size: var(--fs-mono);
  margin-inline-start: auto;
}
.masthead__dot { opacity: .55; }
.masthead__cta { white-space: nowrap; }

/* ---------- Section rhythm + bands ---------- */

.section {
  padding-block: var(--section-y);
  border-bottom: 1px solid var(--border-strong);
}
.section--hero {
  padding-block: clamp(72px, 9vw, 128px);
}
.section:not(.section--hero) {
  padding-block: clamp(56px, 6vw, 80px);
}
.section--band { background: var(--bg-sunken); }
.section--author { padding-block: clamp(48px, 5vw, 64px); }
.section--cta {
  background: var(--accent-soft);
  border-bottom: none;
}

/* ---------- Section spine: mono number + eyebrow ---------- */

.section-mark {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin: 0 0 var(--space-5);
}
.section-mark--spine {
  flex-direction: column;
  gap: var(--space-2);
  position: sticky;
  top: 84px;
}
.section-mark--spine .eyebrow {
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-muted);
  margin: 0;
}
.eyebrow--accent { color: var(--accent); }
.section-mark--spine .eyebrow {
  max-width: 120px;
  line-height: 1.4;
}

@media (max-width: 980px) {
  .section-mark--spine {
    position: static;
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-3);
  }
  .section-mark--spine .eyebrow {
    max-width: none;
    border-bottom: none;
    padding-bottom: 0;
  }
}

/* ---------- Typography roles ---------- */

.display {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(3.5rem, 2rem + 4.5vw, 6rem);
  line-height: 0.94;
  letter-spacing: -0.045em;
  text-wrap: balance;
  margin: 0 0 var(--space-6);
  max-width: 11ch;
}

h2 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-h2);
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0 0 var(--space-5);
}

.h3,
h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-h3);
  line-height: 1.25;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
}

.lead {
  font-family: var(--font-serif);
  font-size: var(--fs-lead);
  line-height: 1.5;
  text-wrap: pretty;
  margin: 0 0 var(--space-6);
  max-width: 56ch;
}

.body {
  font-size: var(--fs-body);
  line-height: 1.58;
  text-wrap: pretty;
  margin: 0 0 var(--space-5);
  max-width: 68ch;
}

/* One bold takeaway per section — weight 500, ~18-20px so it doesn't out-shout its h2 */
.takeaway {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1.25rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  color: var(--fg);
  margin: 0 0 var(--space-5);
  max-width: 46ch;
}

.caption,
.method-note,
.fineprint {
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--fg-muted);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  font-variant-ligatures: none;
}

em { font-style: italic; }
strong { font-weight: 600; }

/* ---------- Links ---------- */

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-color: var(--border-strong);
  text-decoration-thickness: 1px;
  transition: text-decoration-color 120ms ease-out, color 120ms ease-out;
}
a:hover { text-decoration-color: var(--accent); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-small);
  line-height: 1.2;
  letter-spacing: 0.005em;
  text-decoration: none;
  border-radius: 5px;
  padding: var(--space-4) var(--space-6);
  transition: background-color 120ms ease-out, box-shadow 120ms ease-out, color 120ms ease-out;
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent-dark);
  box-shadow: var(--shadow-cta);
}
.btn--primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--accent-ink);
  box-shadow: var(--shadow-cta-hover);
}
.btn--sm {
  min-height: 38px;
  padding: var(--space-2) var(--space-4);
}
.btn--lg {
  font-size: var(--fs-body);
  padding: var(--space-4) var(--space-8);
}
.btn--secondary {
  background: transparent;
  color: var(--accent);
  padding: var(--space-4) var(--space-2);
  min-height: 44px;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-color: var(--border-strong);
  box-shadow: none;
}
.btn--secondary:hover {
  text-decoration-color: var(--accent);
  background: transparent;
}

/* ---------- Section 1: hero ---------- */

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: center;
  margin-bottom: 48px;
}
.hero-lede { min-width: 0; }

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* Research snapshot panel — Tier-1 card */
.snapshot {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: var(--shadow-1);
  padding: var(--space-6);
  position: sticky;
  top: 88px;
}
.snapshot__eyebrow {
  margin: 0 0 var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: var(--fs-eyebrow);
  color: var(--fg-muted);
}
.snapshot__hero {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0 0 var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}
.snapshot__stat {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(2.75rem, 2rem + 2.5vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--accent);
}
.snapshot__statlabel {
  font-family: var(--font-serif);
  font-size: var(--fs-body);
  line-height: 1.4;
  color: var(--fg);
}

.snapshot__meta {
  margin: 0 0 var(--space-4);
  display: grid;
  gap: var(--space-2);
}
.snapshot__meta > div {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  align-items: baseline;
}
.snapshot__meta dt {
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--fs-eyebrow);
}
.snapshot__meta dd { margin: 0; color: var(--fg); }
.snapshot__foot {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-small);
  color: var(--fg-muted);
}

@media (max-width: 980px) {
  .snapshot { position: static; }
}

/* ---------- Offer card — Tier 1 elevated, $500 dominant ---------- */

.offer-card {
  display: grid;
  grid-template-columns: max-content 1fr;
  align-items: center;
  gap: var(--space-6) var(--space-8);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: var(--shadow-1);
  padding: var(--space-6) var(--space-8);
  margin: 0 0 var(--space-5);
}
.section--hero .offer-card { margin-bottom: var(--space-5); }
.offer-card__price-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-right: var(--space-8);
  border-right: 1px solid var(--border);
}
.offer-card__price {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 2.75rem;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.offer-card__price-sub {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-small);
  color: var(--fg-muted);
  white-space: nowrap;
}
.offer-card__detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.offer-card__deliverable {
  font-family: var(--font-serif);
  font-size: var(--fs-body);
  line-height: 1.5;
  margin: 0;
  max-width: 54ch;
}
.offer-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-5);
}
/* Inline CTA group inside the memo section (replaces the duplicate $500 card) */
.offer-restate {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.offer-restate__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-5);
}
.offer-restate .fineprint { margin: var(--space-3) 0 0; max-width: 70ch; }

.micro-line {
  color: var(--fg-muted);
  font-size: var(--fs-mono);
  margin: var(--space-4) 0 0;
}

.hero-context {
  font-family: var(--font-serif);
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--fg-muted);
  margin: var(--space-3) 0 0;
  max-width: 56ch;
}

/* ---------- Aside column shared styles ---------- */

.aside__h {
  margin: 0 0 var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: var(--fs-eyebrow);
  color: var(--fg-muted);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-strong);
}
.aside__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-4);
}
.aside__list li {
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--fg);
  padding-left: var(--space-4);
  position: relative;
}
.aside__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border-strong);
}
.aside__note {
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--fg);
  margin: 0 0 var(--space-3);
}
.aside__note--muted { color: var(--fg-muted); }
.section-aside--wide { grid-column: 2 / -1 !important; }
@media (max-width: 980px) {
  .section-aside--wide { grid-column: 1 !important; }
}

/* ---------- Progressive disclosure (native <details>, zero-JS) ---------- */

.disclosure {
  border-top: 1px solid var(--border);
  padding-block: 16px;
}
.disclosure summary {
  cursor: pointer;
  list-style: none;
  font: 600 15px/1.3 var(--font-sans);
  color: var(--accent);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.disclosure summary::-webkit-details-marker { display: none; }
.disclosure summary::after {
  content: "+";
  font: 500 20px/1 var(--font-mono);
  transition: transform 160ms ease;
}
.disclosure[open] summary::after { transform: rotate(45deg); }
.disclosure summary:hover { color: var(--accent-dark); }
.disclosure summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
}
.disclosure[open] summary { margin-bottom: var(--space-5); }

/* ---------- GRAPHIC: stacked $ bar (the single visual event) ---------- */

.stackbar-figure { margin: 0; }
.stackbar__caption {
  font-family: var(--font-serif);
  font-size: var(--fs-small);
  color: var(--fg-muted);
  margin: 0 0 var(--space-3);
}
.stackbar__total {
  color: var(--fg);
  font-weight: 500;
  font-size: var(--fs-body);
}
.stackbar__verified-label {
  color: var(--accent);
  font: 500 14px/1.4 var(--font-mono);
  margin: 0 0 8px;
  font-variant-numeric: tabular-nums;
}
.stackbar {
  display: flex;
  height: 72px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-1);
}
.stackbar__seg {
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  min-width: 0;
  position: relative;
}
.stackbar__seg--verified {
  flex: 0 0 4.92%;
  background: var(--accent);
  color: var(--accent-ink);
  min-width: 0;
  padding: 0;
}
.stackbar__seg--unverified {
  flex: 1 1 auto;
  background: repeating-linear-gradient(
    135deg,
    var(--bg-sunken),
    var(--bg-sunken) 9px,
    #ECE9E1 9px,
    #ECE9E1 18px
  );
  color: var(--fg-muted);
}
.stackbar__seg-label {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  white-space: nowrap;
}
.stackbar__seg-label b { font-weight: 500; font-size: var(--fs-body); }
.stackbar__seg-label i {
  font-style: normal;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.02em;
}
.stackbar__seg--verified i { color: rgba(255,255,255,.85); }
.stackbar__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-4);
  font-size: var(--fs-eyebrow);
  color: var(--fg-muted);
}
.stackbar__key { display: flex; align-items: center; gap: var(--space-2); }
.stackbar__key::before {
  content: "";
  width: 12px; height: 12px;
  border-radius: 3px;
  flex: none;
}
.stackbar__key--verified::before { background: var(--accent); }
.stackbar__key--unverified::before {
  background: repeating-linear-gradient(135deg, var(--bg-sunken), var(--bg-sunken) 4px, #DDD9CF 4px, #DDD9CF 8px);
  border: 1px solid var(--border-strong);
}

@media (max-width: 560px) {
  .stackbar { height: 56px; }
  .stackbar__seg--unverified { padding: 0 var(--space-3); }
  .stackbar__seg-label { font-size: var(--fs-eyebrow); }
  .stackbar__seg-label b { font-size: var(--fs-small); }
}

/* ---------- Receipts (key/value rows inside disclosures) ---------- */

.receipts {
  margin: 0;
  border-top: 1px solid var(--border);
}
.receipts__row {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--space-5);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
}
.receipts dt {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--fg-muted);
}
.receipts dd {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.5;
  text-align: left;
}
.receipts dd.mono { font-size: var(--fs-mono); text-align: right; }
.receipts__note {
  color: var(--fg-muted);
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  display: block;
}

/* ---------- GRAPHIC: 4-stage method flow (P4) ---------- */

.flow-figure { margin: 0; }
.flow {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex-wrap: wrap;
}
.flow__stage {
  flex: 1 1 0;
  min-width: 150px;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: var(--space-5);
  box-shadow: var(--shadow-1);
}
.flow__stage--accent {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.flow__num {
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  color: var(--border-strong);
  letter-spacing: 0.08em;
}
.flow__stage--accent .flow__num { color: var(--accent); }
.flow__title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--fg);
  letter-spacing: -0.01em;
}
.flow__stat {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1.05;
  color: var(--accent);
  margin-top: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.flow__stat--word {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.005em;
}
.flow__sub {
  font-family: var(--font-serif);
  font-size: var(--fs-eyebrow);
  color: var(--fg-muted);
  line-height: 1.4;
}
.flow__arrow {
  flex: 0 0 auto;
  align-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  color: var(--border-strong);
  padding: 0 var(--space-2);
  max-width: 110px;
  text-align: center;
}
.flow__arrow svg { display: block; }
.flow__excl {
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 0.6875rem;
  line-height: 1.25;
  color: var(--fg-muted);
}

@media (max-width: 760px) {
  .flow { flex-direction: column; }
  .flow__stage { min-width: 0; }
  .flow__arrow {
    flex-direction: row;
    gap: var(--space-3);
    padding: var(--space-1) 0;
  }
  .flow__arrow svg { transform: rotate(90deg); }
  .flow__excl { text-align: left; }
}

/* ---------- Method callout ---------- */

.callout {
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  border-radius: 6px;
  padding: var(--space-5) var(--space-6);
}
.callout p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.55;
  max-width: 80ch;
}

/* ---------- Case study ---------- */

.subject {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  margin: var(--space-5) 0 0;
  padding: var(--space-3) var(--space-4);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  overflow-wrap: anywhere;
  color: var(--fg);
}
.subject__k { color: var(--fg-muted); }
.subject__d { color: var(--border-strong); }

/* GRAPHIC: paired reported-vs-verified bars (P4) */
.pairbar-figure { margin: 0; }
.pairbar__caption {
  font-size: var(--fs-small);
  color: var(--fg-muted);
  margin: 0 0 var(--space-4);
}
.pairbar {
  display: grid;
  gap: var(--space-4);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: var(--shadow-1);
  padding: var(--space-6) var(--space-8);
}
.pairbar__row {
  display: grid;
  grid-template-columns: 84px 1fr max-content;
  align-items: center;
  gap: var(--space-4);
}
.pairbar__label {
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--fs-eyebrow);
}
.pairbar__track {
  height: 28px;
  background: var(--bg-sunken);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.pairbar__fill {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  border-radius: 5px;
  padding-right: var(--space-3);
}
.pairbar__fill--reported {
  width: 100%;
  background: repeating-linear-gradient(135deg, #E7E3DA, #E7E3DA 9px, #DDD9CF 9px, #DDD9CF 18px);
}
.pairbar__fill--verified { width: 46%; background: var(--accent); }
.pairbar__pct {
  font-weight: 500;
  font-size: var(--fs-mono);
  color: var(--accent-ink);
}
.pairbar__val {
  font-weight: 500;
  font-size: var(--fs-body);
  color: var(--fg);
}

@media (max-width: 560px) {
  .pairbar { padding: var(--space-5); }
  .pairbar__row { grid-template-columns: 70px 1fr; }
  .pairbar__val { grid-column: 2; text-align: right; }
}

/* Buyer-breadth stat block (aside) */
.breadth {
  margin: var(--space-5) 0 0;
  display: grid;
  gap: var(--space-3);
}
.breadth > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.breadth dt {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.breadth dd {
  margin: 0;
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1;
}

/* Transaction table — full width */
.tx-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.tx-table th,
.tx-table td {
  text-align: left;
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.tx-table thead th {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  background: var(--bg-sunken);
}
.tx-table tbody th[scope="row"] {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-small);
  color: var(--fg-muted);
  width: 42%;
}
.tx-table td {
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}
.tx-table tbody tr:last-child th,
.tx-table tbody tr:last-child td {
  border-bottom: none;
}

/* Verdict card (aside) */
.verdict {
  border-radius: 8px;
  padding: var(--space-5);
}
.verdict--real {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
}
.verdict--flagged {
  background: var(--warn-soft);
  border: 1px solid var(--warn);
}
.verdict__label {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-h3);
  line-height: 1.25;
  margin: 0 0 var(--space-3);
  color: var(--accent);
}
.verdict--flagged .verdict__label { color: var(--warn); }
.verdict__tick { font-size: 1em; }
.verdict__body {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--fg);
}

/* ---------- GRAPHIC: 2×3 deliverable cards (P4) ---------- */

.deliverables {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.deliverable {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: var(--space-5);
  box-shadow: var(--shadow-1);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.deliverable__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: var(--space-2);
}
.deliverable__title {
  margin: 0;
  font-size: var(--fs-body);
}
.deliverable__body {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--fg-muted);
}

@media (max-width: 900px) {
  .deliverables { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .deliverables { grid-template-columns: 1fr; }
}

.not-included {
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--fg-muted);
  margin: 0;
  padding: var(--space-4);
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.not-included strong { color: var(--fg); }

.fineprint { margin: var(--space-5) 0 0; }

/* ---------- Section 6: bio ---------- */

.bio-card {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--space-5);
  align-items: start;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-6);
  margin-top: var(--space-2);
}
.bio-card__headshot {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.bio-card__initials {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-h3);
  color: var(--border-strong);
  letter-spacing: 0.04em;
}
.bio-card__body {
  margin: 0 0 var(--space-3);
  line-height: 1.55;
  font-size: var(--fs-body);
}
.bio-card__name {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--fg-muted);
}
.bio-card__contact { margin: 0; }

/* ---------- Final CTA + footer ---------- */

.final-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-6);
  margin-top: var(--space-8);
}
.final-cta__sample {
  margin: var(--space-5) 0 0;
  font-size: var(--fs-small);
}

.site-footer {
  padding-block: var(--space-10);
  border-top: 2px solid var(--border-strong);
  background: var(--bg);
}
.disclaimer {
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--fg-muted);
  font-style: italic;
  margin: 0 0 var(--space-5);
}
.brand-line {
  margin: 0;
  color: var(--fg-muted);
}

/* ---------- Micro-interactions (hover lift; reduced-motion guarded) ---------- */

.btn--primary,
.deliverable,
.snapshot {
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.btn--primary:hover { transform: translateY(-1px); }
.deliverable:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 12px 28px -18px rgba(29, 91, 78, .28);
}

/* ---------- Motion: scroll-reveal (case study only) ----------
   Content is FULLY VISIBLE by default; fade-up is progressive
   enhancement, gated on reduced-motion + animation-timeline.        */

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .reveal {
      opacity: 0;
      transform: translateY(8px);
      animation: reveal-in 240ms ease-out forwards;
      animation-timeline: view();
      animation-range: entry 0% entry 25%;
    }
    @keyframes reveal-in {
      to { opacity: 1; transform: translateY(0); }
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------- Responsive: tablet ---------- */

@media (max-width: 900px) {
  .offer-card {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .offer-card__price-block {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-right: 0;
    padding-bottom: var(--space-4);
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-3);
  }
}

@media (max-width: 760px) {
  .receipts__row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }
  .receipts dt { color: var(--fg); }
  .receipts dd { text-align: left; }
}

/* ---------- Responsive: mobile (<= 640px) ---------- */

@media (max-width: 640px) {
  .section { padding-block: var(--space-10); }
  .section--hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-10);
  }

  .masthead__inner { gap: var(--space-3); }
  .masthead__meta { display: none; }
  .masthead__product { display: none; }
  .masthead__cta { margin-inline-start: auto; }

  .display { max-width: none; }

  .evidence,
  .offer-card { padding: var(--space-5); }

  .tx-table th,
  .tx-table td { padding: var(--space-3) var(--space-4); }
  .tx-table tbody th[scope="row"] { width: 50%; }

  .bio-card { grid-template-columns: 1fr; }

  .btn--lg { width: 100%; }
  .offer-card__actions .btn--primary,
  .final-cta .btn--primary { flex: 1 1 auto; }
}