:root {
  --page: #f6f4ee;
  --paper: #ffffff;
  --ink: #142033;
  --muted: #677084;
  --navy: #0d1b2a;
  --blue: #5468ff;
  --green: #159d73;
  --amber: #cc8422;
  --line: #d9dde5;
  --line-dark: #c7ccd6;
  --soft: #eef0f4;
  --radius: 18px;
  --page-width: 1120px;
  --copy-width: 760px;
  --shadow: 0 24px 70px rgba(13, 27, 42, 0.09);
  --font-display: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-color: var(--blue);
}

:focus-visible {
  outline: 3px solid #e2a74f;
  outline-offset: 4px;
}

::selection {
  color: var(--navy);
  background: #ced3ff;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 9px 14px;
  border-radius: 8px;
  color: white;
  background: var(--navy);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 48px), var(--page-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid rgba(199, 204, 214, 0.48);
  background: rgba(246, 244, 238, 0.72);
  backdrop-filter: blur(18px) saturate(125%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35);
  transition:
    transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
    background-color 180ms ease,
    box-shadow 180ms ease;
  will-change: transform;
}

.site-header.is-scrolled {
  background: rgba(246, 244, 238, 0.78);
  box-shadow: 0 10px 28px rgba(13, 27, 42, 0.06);
}

.site-header.is-hidden {
  transform: translateY(calc(-100% - 2px));
}

@media (hover: hover) and (pointer: fine) {
  .site-header.is-hidden {
    transform: translateY(calc(-100% + 10px));
  }

  .site-header.is-hidden:hover {
    transform: translateY(0);
  }
}

.header-inner {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-grid;
  align-items: center;
  color: var(--navy);
  grid-template-columns: 50px auto;
  gap: 8px;
  line-height: 1.08;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 46px;
  height: 46px;
  border-radius: 50%;
}

.brand-copy {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.24rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.brand-product {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 690;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  color: #545e70;
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--navy);
}

.site-nav a.nav-cta {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  color: white;
  background: var(--navy);
  font-weight: 720;
  line-height: 1;
  transition: background-color 150ms ease, transform 150ms ease;
}

.site-nav a.nav-cta:hover {
  color: white;
  background: #1b2d42;
  text-decoration: none;
  transform: translateY(-1px);
}

.hero {
  display: flex;
  min-height: calc(100vh - 74px);
  min-height: calc(100dvh - 74px);
  padding-block: clamp(64px, 9vh, 108px) 28px;
  flex-direction: column;
}

.hero > .container {
  display: flex;
  flex: 1;
}

.hero-copy {
  display: grid;
  width: 100%;
  max-width: 890px;
  grid-template-rows: 0.88fr auto 1.12fr;
}

.hero-message {
  grid-row: 2;
  transform: translateY(-10%);
}

.product-label,
.section-label,
.memo-label {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 0.7rem;
  font-weight: 780;
  letter-spacing: 0.13em;
  line-height: 1.3;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  color: var(--navy);
  font-family: var(--font-display);
  letter-spacing: -0.045em;
  line-height: 1.08;
}

h3 {
  color: var(--navy);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

h1 {
  max-width: 900px;
  margin-bottom: 23px;
  font-size: clamp(3.55rem, 7.2vw, 6.75rem);
  font-weight: 600;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2.3rem, 4.5vw, 4.1rem);
  font-weight: 600;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  font-weight: 690;
}

.hero-lead {
  max-width: 690px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.8vw, 1.28rem);
}

.hero .text-link {
  align-self: end;
  justify-self: start;
  grid-row: 3;
}

.text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 750;
  text-decoration: none;
}

.text-link::after {
  content: "↓";
  color: var(--blue);
  font-size: 1.12rem;
}

.text-link:hover {
  text-decoration: underline;
  text-decoration-color: var(--blue);
}

.proof {
  padding-block: 78px 110px;
}

.memo {
  max-width: 1040px;
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.memo-header {
  padding: 20px 28px 21px;
  border-bottom: 1px solid var(--line);
}

.memo-meta {
  display: flex;
  margin-bottom: 12px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.memo-meta .memo-label {
  margin: 0;
}

.reviewed {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #26745e;
  font-size: 0.67rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.reviewed::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  content: "";
  box-shadow: 0 0 0 4px #dff3ec;
}

.memo-header h2 {
  max-width: 760px;
  margin: 0 0 5px;
  font-size: clamp(1.8rem, 2.8vw, 2.6rem);
}

.memo-summary {
  max-width: 750px;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.memo-question {
  display: grid;
  padding: 13px 28px;
  border-bottom: 1px solid var(--line);
  align-items: center;
  background: #f7f8fa;
  grid-template-columns: 160px 1fr;
  gap: 20px;
}

.memo-question h3,
.memo-section-title,
.memo-analysis-block h3,
.memo-opening h3,
.memo-support h3,
.memo-footer h3 {
  margin: 0;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 770;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.audience-question {
  margin: 0;
  color: var(--navy);
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.4;
}

.memo-body {
  padding: 20px 28px 22px;
}

.memo-section-title {
  margin-bottom: 9px;
}

.signals {
  display: grid;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
}

.signal {
  display: block;
  min-width: 0;
  padding: 14px 18px 15px 0;
}

.signal + .signal {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.signal-value {
  display: block;
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 1.72rem;
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.signal p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

.memo-analysis {
  display: grid;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 11px;
  grid-template-columns: 0.9fr 1.1fr;
}

.memo-analysis-block {
  padding: 16px 18px;
}

.memo-analysis-block + .memo-analysis-block {
  border-left: 1px solid var(--line);
  background: #f7f8fa;
}

.memo-analysis-block h3,
.memo-support h3 {
  margin-bottom: 8px;
}

.memo-prose {
  margin: 0;
  color: var(--navy);
  font-size: 0.82rem;
  line-height: 1.5;
}

.memo-prose p {
  margin: 0;
}

.memo-prose p + p {
  margin-top: 7px;
}

.memo-checks,
.format-list {
  display: grid;
  margin: 10px 0 0;
  padding: 0;
  grid-template-columns: 1fr 1fr;
  gap: 5px 18px;
  list-style: none;
}

.memo-checks li,
.format-list li {
  position: relative;
  padding-left: 14px;
  color: #4f5a6d;
  font-size: 0.75rem;
  line-height: 1.45;
}

.memo-checks li::before,
.format-list li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.memo-opening {
  display: grid;
  margin-top: 14px;
  padding: 13px 17px;
  border-left: 3px solid var(--blue);
  align-items: center;
  background: #f7f8fa;
  grid-template-columns: 145px 1fr;
  gap: 18px;
}

.memo-opening blockquote {
  margin: 0;
  color: var(--navy);
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.018em;
  line-height: 1.45;
}

.memo-support {
  display: grid;
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
}

.format-list {
  margin-top: 0;
}

.format-list strong {
  color: var(--navy);
  font-weight: 700;
}

.memo-footer {
  display: grid;
  padding: 15px 28px 16px;
  border-top: 1px solid var(--line);
  background: #fafafa;
  align-items: start;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 34px;
}

.memo-footer h3 {
  margin-bottom: 8px;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.source-links a {
  color: var(--navy);
  font-size: 0.73rem;
  font-weight: 650;
}

.evidence-boundary p {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.5;
}

.section {
  padding-block: 100px;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: var(--copy-width);
  margin-bottom: 52px;
}

.section-heading > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.process-system {
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 18px 54px rgba(13, 27, 42, 0.06);
}

.process {
  position: relative;
  display: grid;
  margin: 0;
  padding: 36px 36px 34px;
  grid-template-columns: repeat(4, 1fr);
  gap: 34px;
  list-style: none;
  counter-reset: process;
}

.process li:not(:last-child)::after {
  position: absolute;
  z-index: 0;
  top: 22px;
  left: 44px;
  width: calc(100% + 34px - 44px);
  height: 1px;
  background: var(--line-dark);
  content: "";
}

.process li {
  position: relative;
  min-width: 0;
  counter-increment: process;
}

.process li::before {
  position: relative;
  z-index: 1;
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  color: var(--blue);
  background: var(--paper);
  content: "0" counter(process);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 750;
  place-items: center;
}

.process li:last-child::before {
  border-color: var(--blue);
  color: white;
  background: var(--blue);
}

.process p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.process h3,
.boundary-panel h3,
.pilot-list strong {
  font-family: var(--font-display);
}

.process h3 {
  margin-bottom: 7px;
  font-size: 1.12rem;
}

.evidence-gate {
  display: grid;
  padding: 26px 36px;
  color: #d7dee8;
  background: var(--navy);
  grid-template-columns: minmax(220px, 0.85fr) 2fr;
  gap: 42px;
  align-items: center;
}

.evidence-gate-intro span {
  display: block;
  margin-bottom: 5px;
  color: #96a2ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.64rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.evidence-gate-intro strong {
  display: block;
  color: white;
  font-size: 0.95rem;
  line-height: 1.45;
}

.evidence-checks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.evidence-checks div {
  position: relative;
  padding-left: 18px;
}

.evidence-checks div::before {
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #96a2ff;
  content: "";
}

.evidence-checks strong,
.evidence-checks span {
  display: block;
}

.evidence-checks strong {
  margin-bottom: 3px;
  color: white;
  font-size: 0.82rem;
}

.evidence-checks span {
  color: #aeb9c7;
  font-size: 0.73rem;
  line-height: 1.45;
}

.boundary {
  display: grid;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 16px 48px rgba(13, 27, 42, 0.055);
  grid-template-columns: 1fr 1fr;
}

.boundary-panel {
  padding: 38px;
}

.boundary-panel + .boundary-panel {
  border-left: 1px solid var(--line);
}

.boundary-panel:first-child {
  color: #d9e0e8;
  background: var(--navy);
  border-radius: 17px 0 0 17px;
}

.boundary-panel:first-child h3 {
  color: white;
}

.boundary-panel h3 {
  margin-bottom: 23px;
  font-size: 1.6rem;
}

.boundary-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.boundary-panel li {
  padding: 10px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  font-size: 0.9rem;
}

.boundary-panel:last-child li {
  border-top-color: var(--line);
  color: var(--muted);
}

.connector-note {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.pilot {
  display: flex;
  min-height: calc(100vh - 130px);
  min-height: calc(100dvh - 130px);
  padding-block: 104px;
  align-items: center;
  color: #d7dee8;
  background: var(--navy);
}

.pilot > .container {
  width: min(calc(100% - 48px), var(--page-width));
}

.pilot-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 86px;
}

.pilot .section-label {
  color: #96a2ff;
}

.pilot h2 {
  color: white;
}

.pilot-intro {
  margin-bottom: 28px;
  color: #abb7c6;
  font-size: 1.02rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  color: var(--navy);
  background: white;
  font-size: 0.9rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.button:hover {
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  text-decoration: none;
  transform: translateY(-2px);
}

.pilot-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  list-style: none;
  counter-reset: pilot;
}

.pilot-list li {
  display: grid;
  padding: 23px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  grid-template-columns: 48px 1fr;
  counter-increment: pilot;
}

.pilot-list li::before {
  color: #96a2ff;
  content: "0" counter(pilot);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 750;
}

.pilot-list strong {
  display: block;
  margin-bottom: 5px;
  color: white;
  font-size: 1rem;
}

.pilot-list span {
  color: #abb7c6;
  font-size: 0.86rem;
}

.site-footer {
  padding-block: 42px;
  border-top: 1px solid rgba(255, 255, 255, 0.11);
  color: #8f9cad;
  background: var(--navy);
}

.footer-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 34px;
}

.footer-identity {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-mark {
  display: block;
  width: 47px;
  height: 47px;
  opacity: 0.94;
  flex: 0 0 auto;
}

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

.footer-brand {
  color: white;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
}

.footer-inner p {
  margin: 4px 0 0;
  font-size: 0.8rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 22px;
}

.footer-links a {
  color: #bec7d3;
  font-size: 0.78rem;
}

@media (max-width: 850px) {
  .hero {
    padding-block: 64px 28px;
  }

  .signals,
  .memo-analysis,
  .memo-opening,
  .memo-support,
  .memo-footer,
  .boundary,
  .pilot-grid {
    grid-template-columns: 1fr;
  }

  .signal + .signal {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .memo-analysis-block + .memo-analysis-block {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .boundary-panel + .boundary-panel {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .boundary-panel:first-child {
    border-radius: 17px 17px 0 0;
  }

  .process {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 34px;
  }

  .process li:not(:last-child)::after {
    display: none;
  }

  .evidence-gate {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .pilot-grid {
    gap: 56px;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(calc(100% - 28px), var(--page-width));
  }

  .site-nav a:not(:last-child) {
    display: none;
  }

  .site-nav a:last-child {
    color: white;
  }

  .hero {
    min-height: calc(100vh - 74px);
    min-height: calc(100dvh - 74px);
    padding-block: 48px 22px;
  }

  h1 {
    font-size: clamp(3.1rem, 15vw, 4.2rem);
  }

  .proof {
    padding-bottom: 78px;
  }

  .memo-header,
  .memo-question,
  .memo-body,
  .memo-footer {
    padding-right: 21px;
    padding-left: 21px;
  }

  .memo-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .memo-question {
    align-items: start;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .signal-value {
    font-size: 1.48rem;
  }

  .memo-checks,
  .format-list {
    grid-template-columns: 1fr;
  }

  .section {
    padding-block: 76px;
  }

  .process,
  .evidence-checks {
    grid-template-columns: 1fr;
  }

  .process {
    padding: 25px 23px 27px;
    gap: 0;
  }

  .process li {
    display: grid;
    padding: 17px 0;
    grid-template-columns: 44px 1fr;
    column-gap: 16px;
  }

  .process li + li {
    border-top: 1px solid var(--line);
  }

  .process li::before {
    margin-bottom: 0;
    grid-row: span 2;
  }

  .process h3 {
    margin: 0 0 3px;
  }

  .evidence-gate {
    padding: 25px 23px 27px;
  }

  .evidence-checks {
    gap: 15px;
  }

  .boundary-panel {
    padding: 28px 23px;
  }

  .pilot {
    min-height: calc(100vh - 176px);
    min-height: calc(100dvh - 176px);
    padding-block: 78px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition-duration: 0.01ms !important;
  }
}