:root {
  --background: #f7f2ea;
  --background-soft: #efe7da;
  --surface: #fffdf8;
  --surface-muted: #ece2d2;
  --graphite: #17191b;
  --graphite-soft: #2c2e30;
  --ink-muted: #4e4a43;
  --stone: #8b857a;
  --line: #d7ccba;
  --line-strong: #b9ad9a;
  --signal-amber: #d97706;
  --signal-amber-soft: #f7d7a8;
  --active-blue: #1d5fdb;
  --active-blue-soft: #d8e5ff;
  --success: #3f6f53;
  --warning: #9a5a00;
  --error: #a83232;
  --white: #ffffff;
  --max-width: 1180px;
  --page-margin: 64px;
  --gutter: 24px;
  --radius-card: 4px;
  --radius-button: 3px;
  --radius-badge: 2px;
  --radius-input: 2px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
  color: var(--graphite);
  font-family: "IBM Plex Sans", sans-serif;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(23, 25, 27, 0.035) 1px, transparent 1px) 0 0 / 96px 96px,
    linear-gradient(0deg, rgba(23, 25, 27, 0.025) 1px, transparent 1px) 0 0 / 96px 96px,
    var(--background);
  color: var(--graphite);
  font-size: 16px;
  line-height: 1.62;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a.text-link {
  color: var(--active-blue);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

p {
  margin: 0;
}

p + p {
  margin-top: 16px;
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 242, 234, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  align-items: center;
  display: flex;
  gap: 28px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: calc(var(--max-width) + 2 * var(--page-margin));
  padding: 18px var(--page-margin);
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.brand-mark {
  border: 1px solid var(--graphite);
  box-sizing: border-box;
  display: grid;
  flex: 0 0 30px;
  height: 30px;
  overflow: hidden;
  place-items: center;
  position: relative;
  width: 30px;
}

.brand-mark::before,
.brand-mark::after {
  background: var(--graphite);
  content: "";
  position: absolute;
}

.brand-mark::before {
  height: 1px;
  left: 6px;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
}

.brand-mark::after {
  height: 6px;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
}

.brand-word {
  font-size: 16px;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 26px;
}

.nav-link {
  color: var(--ink-muted);
  font-size: 14px;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--graphite);
}

.menu-button {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--graphite);
  display: none;
  font: inherit;
  padding: 8px 10px;
}

.page {
  overflow: hidden;
}

.section {
  border-bottom: 1px solid rgba(215, 204, 186, 0.8);
  padding: 96px var(--page-margin);
}

.section--soft {
  background: rgba(239, 231, 218, 0.55);
}

.section--dark {
  background: var(--graphite);
  color: var(--surface);
}

.section-inner {
  margin: 0 auto;
  max-width: var(--max-width);
}

.hero {
  padding-top: 88px;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 56px;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
}

.eyebrow {
  color: var(--stone);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.11em;
  line-height: 1;
  margin-bottom: 22px;
  text-transform: uppercase;
}

.headline-xl {
  font-size: clamp(46px, 6.8vw, 82px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.98;
  margin: 0;
  max-width: 860px;
}

.compact-hero .headline-xl {
  font-size: clamp(42px, 5.7vw, 72px);
}

.headline-lg {
  font-size: clamp(34px, 4.8vw, 58px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.04;
  margin: 0;
}

.headline-md {
  font-size: clamp(27px, 3.2vw, 40px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.14;
  margin: 0;
}

.subhead {
  color: var(--ink-muted);
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.54;
  margin-top: 28px;
  max-width: 780px;
}

.section-lede {
  color: var(--ink-muted);
  font-size: 18px;
  line-height: 1.65;
  margin-top: 22px;
  max-width: 760px;
}

.section-header {
  display: grid;
  gap: 18px;
  max-width: 860px;
}

.section-header--wide {
  max-width: 980px;
}

.argument-rail {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-bottom: 34px;
}

.argument-rail span {
  border-right: 1px solid var(--line);
  color: var(--stone);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding-top: 12px;
  text-transform: uppercase;
}

.argument-rail span:last-child {
  border-right: 0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  align-items: center;
  border: 1px solid var(--graphite);
  border-radius: var(--radius-button);
  display: inline-flex;
  font-size: 13px;
  font-weight: 600;
  justify-content: center;
  letter-spacing: 0.08em;
  min-height: 48px;
  padding: 0 20px;
  text-transform: uppercase;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button--primary {
  background: var(--graphite);
  color: var(--surface);
}

.button--primary:hover {
  background: var(--graphite-soft);
  border-color: var(--graphite-soft);
}

.button--secondary {
  background: transparent;
  color: var(--graphite);
}

.button--secondary:hover {
  background: rgba(23, 25, 27, 0.06);
}

.button--light {
  border-color: var(--surface);
  color: var(--surface);
}

.button--light:hover {
  background: var(--surface);
  color: var(--graphite);
}

.trust-note {
  color: var(--stone);
  font-size: 14px;
  margin-top: 18px;
}

.diagnostic-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 28px;
  position: relative;
}

.diagnostic-panel::before {
  background: var(--signal-amber);
  content: "";
  height: 10px;
  position: absolute;
  right: 28px;
  top: -5px;
  transform: rotate(45deg);
  width: 10px;
}

.panel-label {
  align-items: center;
  color: var(--stone);
  display: flex;
  font-size: 12px;
  font-weight: 600;
  justify-content: space-between;
  letter-spacing: 0.11em;
  margin-bottom: 34px;
  text-transform: uppercase;
}

.signal-map {
  display: grid;
  gap: 0;
  margin: auto 0;
}

.signal-stage {
  align-items: center;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 16px;
  grid-template-columns: 24px 1fr auto;
  padding: 18px 0;
}

.signal-stage--muted {
  opacity: 0.72;
}

.signal-stage:last-child {
  border-bottom: 1px solid var(--line);
}

.node {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  height: 14px;
  width: 14px;
}

.node--active {
  background: var(--active-blue);
  border-color: var(--active-blue);
}

.node--break {
  background: var(--signal-amber);
  border-color: var(--signal-amber);
  transform: rotate(45deg);
}

.stage-title {
  font-size: 15px;
  font-weight: 500;
}

.stage-meta {
  color: var(--stone);
  font-size: 12px;
}

.badge {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-badge);
  color: var(--ink-muted);
  display: inline-flex;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  padding: 7px 8px;
  text-transform: uppercase;
}

.badge--amber {
  background: rgba(217, 119, 6, 0.12);
  border-color: rgba(217, 119, 6, 0.36);
  color: var(--warning);
}

.badge--blue {
  background: var(--active-blue-soft);
  border-color: rgba(29, 95, 219, 0.36);
  color: var(--active-blue);
}

.badge--green {
  background: rgba(63, 111, 83, 0.12);
  border-color: rgba(63, 111, 83, 0.32);
  color: var(--success);
}

.split {
  align-items: start;
  display: grid;
  gap: 54px;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

.split--balanced {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.two-col {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-col {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards {
  display: grid;
  gap: 18px;
}

.cards--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cards--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 24px;
}

.card--lined {
  border-top: 3px solid var(--graphite);
}

.card--amber {
  border-top: 3px solid var(--signal-amber);
}

.card--dark {
  background: var(--graphite-soft);
  border-color: rgba(255, 253, 248, 0.16);
}

.card-kicker {
  color: var(--stone);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.card-title {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.22;
  margin: 0 0 12px;
}

.card p,
.card li {
  color: var(--ink-muted);
}

.card--dark p,
.card--dark li {
  color: rgba(255, 253, 248, 0.72);
}

.serif-insight {
  border-left: 2px solid var(--signal-amber);
  color: var(--graphite);
  font-family: "IBM Plex Serif", serif;
  font-size: clamp(21px, 2.3vw, 29px);
  line-height: 1.42;
  margin-top: 34px;
  max-width: 790px;
  padding-left: 22px;
}

.reframe-band {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  padding: 36px 0;
}

.evidence-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  display: grid;
  gap: 0;
}

.sample-finding {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  margin-top: 34px;
}

.sample-finding__intro {
  border-right: 1px solid var(--line);
  padding: 28px;
}

.sample-finding__rows {
  display: grid;
}

.finding-row {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 24px;
  grid-template-columns: 170px 1fr;
  padding: 22px 26px;
}

.finding-row:first-child {
  border-top: 0;
}

.finding-label {
  color: var(--stone);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.finding-boundary {
  color: var(--stone);
  font-size: 14px;
}

.trust-perimeter {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
  padding-top: 18px;
}

.trust-perimeter--panel {
  background: rgba(255, 253, 248, 0.68);
  border: 1px solid var(--line);
  margin-top: 28px;
  padding: 14px;
}

.comparison {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
}

.comparison-block {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 24px;
}

.comparison-block ul {
  margin: 16px 0 0;
  padding-left: 18px;
}

.comparison-block li + li {
  margin-top: 8px;
}

.ladder {
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

.ladder-item {
  align-items: start;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 28px;
  grid-template-columns: 120px minmax(0, 0.9fr) minmax(0, 1.1fr);
  padding: 28px 0;
}

.ladder-number {
  color: var(--stone);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.path-line {
  align-items: center;
  border: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 26px;
}

.path-line span {
  border-right: 1px solid var(--line);
  color: var(--ink-muted);
  flex: 1 1 150px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  min-height: 54px;
  padding: 16px;
  text-transform: uppercase;
}

.path-line span:last-child {
  border-right: 0;
}

.evidence-row {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 24px;
  grid-template-columns: 160px 1fr;
  padding: 20px 22px;
}

.evidence-row:first-child {
  border-top: 0;
}

.evidence-label {
  color: var(--stone);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.score-strip {
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 26px;
}

.score-cell {
  border-left: 1px solid var(--line);
  padding: 16px;
}

.score-cell:first-child {
  border-left: 0;
}

.score-label {
  color: var(--stone);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.score-value {
  display: block;
  font-size: 18px;
  font-weight: 500;
  margin-top: 8px;
}

.ordered-steps {
  counter-reset: step;
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.intake-layout {
  align-items: start;
  display: grid;
  gap: 34px;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
}

.step {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  counter-increment: step;
  display: grid;
  gap: 18px;
  grid-template-columns: 46px 1fr;
  padding: 18px;
}

.step::before {
  align-items: center;
  background: var(--graphite);
  color: var(--surface);
  content: counter(step, decimal-leading-zero);
  display: flex;
  font-size: 12px;
  font-weight: 600;
  height: 34px;
  justify-content: center;
  letter-spacing: 0.08em;
  width: 34px;
}

.list {
  margin: 16px 0 0;
  padding-left: 18px;
}

.list li + li {
  margin-top: 8px;
}

.form-shell {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 28px;
}

.form-grid {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label,
.field legend {
  color: var(--graphite);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field-meta {
  color: var(--stone);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-left: 8px;
  text-transform: uppercase;
}

.field input,
.field textarea,
.field select {
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-input);
  color: var(--graphite);
  font: inherit;
  min-height: 48px;
  padding: 12px;
  width: 100%;
}

.field textarea {
  min-height: 130px;
  resize: vertical;
}

.field small {
  color: var(--stone);
}

.form-warning {
  background: rgba(217, 119, 6, 0.1);
  border: 1px solid rgba(217, 119, 6, 0.3);
  color: var(--warning);
  font-size: 14px;
  padding: 14px;
}

.checkbox {
  align-items: start;
  display: grid;
  gap: 12px;
  grid-template-columns: 18px 1fr;
}

.checkbox input {
  margin-top: 6px;
}

.site-footer {
  background: var(--graphite);
  color: var(--surface);
  padding: 52px var(--page-margin);
}

.footer-inner {
  align-items: start;
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr auto;
  margin: 0 auto;
  max-width: var(--max-width);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a,
.footer-note {
  color: rgba(255, 253, 248, 0.68);
  font-size: 14px;
}

.site-footer .brand-mark {
  border-color: var(--surface);
}

.site-footer .brand-mark::before,
.site-footer .brand-mark::after {
  background: var(--surface);
}

.compact-hero {
  padding-bottom: 72px;
  padding-top: 80px;
}

@media (max-width: 920px) {
  :root {
    --page-margin: 24px;
  }

  .nav {
    padding: 14px var(--page-margin);
  }

  .menu-button {
    display: inline-flex;
  }

  .nav-links {
    background: var(--background);
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    gap: 18px;
    left: 0;
    padding: 22px 24px 28px;
    position: absolute;
    right: 0;
    top: 59px;
  }

  body.nav-open .nav-links {
    display: flex;
  }

  .hero-grid,
  .split,
  .split--balanced,
  .reframe-band,
  .sample-finding,
  .comparison,
  .ladder-item,
  .intake-layout,
  .two-col,
  .three-col,
  .cards--two,
  .cards--three,
  .footer-inner {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding-top: 60px;
  }

  .score-strip {
    grid-template-columns: 1fr 1fr;
  }

  .score-cell:nth-child(odd) {
    border-left: 0;
  }

  .score-cell:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .argument-rail {
    grid-template-columns: 1fr;
  }

  .argument-rail span {
    border-right: 0;
  }

  .sample-finding__intro {
    border-bottom: 1px solid var(--line);
    border-right: 0;
  }
}

@media (max-width: 560px) {
  .headline-xl {
    font-size: 44px;
  }

  .section {
    padding-bottom: 56px;
    padding-top: 56px;
  }

  .cta-row,
  .footer-links {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .evidence-row,
  .finding-row,
  .step {
    grid-template-columns: 1fr;
  }

  .score-strip {
    grid-template-columns: 1fr;
  }

  .score-cell {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .score-cell:first-child {
    border-top: 0;
  }
}