/* ==========================================================================
   Know Thy Buyer — Direction 5: Swiss Restraint
   Palette: #ffffff ground · #111111 text · #6b6b6b secondary · #1a46e5 ONCE
   No gradients. No shadows. No rotations. No decoration.
   ========================================================================== */

:root {
  --ground: #ffffff;
  --ink: #111111;
  --gray: #6b6b6b;
  --rule: #e5e5e5;
  --panel: #f6f6f6;
  --cobalt: #1a46e5;
  --maxw: 1120px;
  --font: "Archivo", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font);
  background: var(--ground);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---- layout ------------------------------------------------------------ */

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.rule-top { border-top: 1px solid var(--rule); }

/* ---- nav --------------------------------------------------------------- */

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.nav-cta {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
}

/* ---- hero -------------------------------------------------------------- */

.hero {
  padding-top: 104px;
  padding-bottom: 96px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  column-gap: 80px;
  align-items: center;
}

.kicker {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(44px, 5.6vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 650;
  margin-bottom: 28px;
}

.hero .subhead {
  font-size: 19px;
  line-height: 1.6;
  color: var(--gray);
  max-width: 34em;
  margin-bottom: 44px;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

/* The single cobalt element on the page. */
.btn-primary {
  display: inline-block;
  background: var(--cobalt);
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  padding: 16px 32px;
  border: 0;
  border-radius: 0;
}

.btn-quiet {
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gray);
  padding-bottom: 2px;
}

/* ---- report wireframe (pure HTML/CSS, no imagery) ----------------------- */

.report {
  border: 1px solid var(--ink);
  background: var(--ground);
}

.report-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--ink);
}

.report-bar strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.report-bar span {
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.report-body {
  display: grid;
  grid-template-columns: 148px 1fr;
}

.report-side {
  border-right: 1px solid var(--ink);
  padding: 20px 0;
}

.report-side p {
  font-size: 12px;
  color: var(--gray);
  padding: 10px 24px;
  letter-spacing: 0.02em;
}

.report-side p.on {
  color: var(--ink);
  font-weight: 600;
  border-left: 2px solid var(--ink);
  padding-left: 22px;
}

.report-main { padding: 24px; }

.report-main h3 {
  font-size: 20px;
  letter-spacing: -0.02em;
  font-weight: 650;
  margin-bottom: 6px;
}

.report-main .verdict {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--rule);
}

.persona-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.persona {
  border: 1px solid var(--rule);
  padding: 16px;
}

.persona h4 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}

.persona p {
  font-size: 12px;
  color: var(--gray);
  line-height: 1.5;
}

.chart {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 96px;
  border: 1px solid var(--rule);
  padding: 16px;
}

.chart i {
  display: block;
  flex: 1;
  border: 1px solid var(--ink);
  background: var(--panel);
}

.chart i:nth-child(1) { height: 42%; }
.chart i:nth-child(2) { height: 68%; }
.chart i:nth-child(3) { height: 55%; }
.chart i:nth-child(4) { height: 88%; }
.chart i:nth-child(5) { height: 74%; }
.chart i:nth-child(6) { height: 96%; }

.chart-cap {
  font-size: 12px;
  color: var(--gray);
  margin-top: 12px;
}

/* ---- proof band -------------------------------------------------------- */

.proof {
  padding-top: 72px;
  padding-bottom: 72px;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  list-style: none;
}

.facts li {
  border-top: 2px solid var(--ink);
  padding-top: 20px;
}

.facts .num {
  display: block;
  font-size: 34px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 8px;
}

.facts .lbl {
  display: block;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.5;
}

/* ---- steps ------------------------------------------------------------- */

.steps {
  padding-top: 88px;
  padding-bottom: 96px;
}

.steps h2 {
  font-size: clamp(30px, 3.4vw, 44px);
  letter-spacing: -0.025em;
  font-weight: 650;
  margin-bottom: 56px;
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  list-style: none;
}

.step-list .n {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.step-list h3 {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}

.step-list p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.6;
}

/* ---- footer ------------------------------------------------------------ */

.site-foot {
  padding-top: 56px;
  padding-bottom: 56px;
}

.foot-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.foot-row .wordmark { font-size: 15px; }

.slogan {
  font-size: 15px;
  font-style: italic;
  color: var(--gray);
}

.copy {
  font-size: 13px;
  color: var(--gray);
  margin-top: 24px;
}

/* ---- responsive: 390px ------------------------------------------------- */

@media (max-width: 820px) {
  .wrap { padding-left: 22px; padding-right: 22px; }

  .hero {
    grid-template-columns: 1fr;
    row-gap: 64px;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .facts { grid-template-columns: 1fr 1fr; }

  .step-list { grid-template-columns: 1fr; gap: 40px; }

  .cta-row { gap: 24px; }

  .btn-primary {
    width: 100%;
    text-align: center;
    padding: 18px 24px;
  }

  .btn-quiet {
    padding: 10px 0;
  }

  .report-body { grid-template-columns: 1fr; }

  .report-side {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
    display: flex;
    flex-wrap: wrap;
    padding: 12px 16px;
  }

  .report-side p { padding: 6px 12px; }

  .report-side p.on { border-left: 0; padding-left: 12px; }

  .persona-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .facts { grid-template-columns: 1fr; gap: 28px; }
  .hero .subhead { font-size: 17px; }
}