:root {
  --paper: #f5f4ef;
  --paper-strong: #ffffff;
  --ink: #121922;
  --ink-soft: #4c5967;
  --line: #cfd5d9;
  --mist: #e8eef2;
  --blue: #1453c7;
  --blue-dark: #082c6c;
  --teal: #067a76;
  --teal-light: #caf1eb;
  --amber: #f4a300;
  --amber-light: #fff0ca;
  --green: #167c5a;
  --danger: #a13d35;
  --shadow: 0 24px 70px rgba(14, 31, 48, 0.16);
  --shell: 1180px;
  --radius: 6px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

img {
  display: block;
  max-width: 100%;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--ink);
  color: white;
  transform: translateY(-150%);
}

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

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

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: 72px;
  border-bottom: 1px solid transparent;
  background: rgba(245, 244, 239, 0.72);
  backdrop-filter: blur(16px);
  transition: background 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled,
.site-header-solid {
  border-color: rgba(18, 25, 34, 0.13);
  background: rgba(245, 244, 239, 0.96);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 28px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark img {
  flex: 0 0 auto;
}

.wordmark small {
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  vertical-align: super;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  font-weight: 650;
}

.nav-links > a:not(.nav-cta) {
  position: relative;
  text-decoration: none;
}

.nav-links > a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--teal);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-links > a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform 150ms ease, background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.nav-cta {
  min-height: 40px;
  padding: 9px 14px;
  background: var(--ink);
  color: white;
}

.nav-cta:hover,
.button:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px 9px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  height: 88svh;
  min-height: 700px;
  max-height: 860px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(18, 25, 34, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 25, 34, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, black 0%, transparent 78%);
}

.hero-mark {
  position: absolute;
  top: 48%;
  right: -90px;
  width: 580px;
  height: 580px;
  opacity: 0.08;
  transform: translateY(-50%) rotate(7deg);
}

.hero-inner {
  position: relative;
  z-index: 3;
  width: min(calc(100% - 48px), var(--shell));
  margin: 74px auto 0;
  padding-right: 500px;
}

.eyebrow,
.section-index,
.message-label,
.fit-label,
.stage-kicker,
.legal-updated {
  margin: 0 0 16px;
  color: var(--blue);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 750;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--ink);
  font-size: 82px;
  font-weight: 780;
  line-height: 0.96;
}

.hero-tagline {
  max-width: 680px;
  margin: 28px 0 14px;
  color: var(--blue-dark);
  font-size: 31px;
  font-weight: 650;
  line-height: 1.18;
}

.hero-copy {
  max-width: 650px;
  color: var(--ink-soft);
  font-size: 17px;
}

.hero-copy p {
  margin: 0;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
}

.button-primary {
  min-height: 52px;
  padding: 14px 20px;
  background: var(--green);
  color: white;
  box-shadow: 0 12px 26px rgba(22, 124, 90, 0.2);
}

.button-primary:hover {
  background: #0f684a;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
}

.text-link span {
  color: var(--teal);
  transition: transform 150ms ease;
}

.text-link:hover span {
  transform: translateY(2px);
}

.hero-trust {
  max-width: 620px;
  margin: 24px 0 0;
  color: #5a6672;
  font-size: 13px;
}

.product-stage {
  position: absolute;
  z-index: 2;
  top: 134px;
  right: max(36px, calc((100vw - var(--shell)) / 2));
  width: 402px;
  overflow: hidden;
  border: 1px solid rgba(18, 25, 34, 0.22);
  border-radius: 8px;
  background: #eef3ef;
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
}

.stage-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  min-height: 62px;
  padding: 11px 14px;
  background: #f8faf8;
  border-bottom: 1px solid #d2ddd6;
}

.stage-header strong,
.stage-header small {
  display: block;
  line-height: 1.3;
}

.stage-header strong {
  font-size: 14px;
}

.stage-header small,
.stage-meta {
  color: #647167;
  font-size: 11px;
}

.stage-status {
  width: 28px;
  height: 28px;
  border: 7px solid var(--teal);
  border-radius: 50%;
}

.stage-body {
  padding: 18px;
  background-image:
    linear-gradient(30deg, rgba(18, 25, 34, 0.025) 12%, transparent 12.5%, transparent 87%, rgba(18, 25, 34, 0.025) 87.5%),
    linear-gradient(150deg, rgba(18, 25, 34, 0.025) 12%, transparent 12.5%, transparent 87%, rgba(18, 25, 34, 0.025) 87.5%);
  background-size: 36px 62px;
}

.stage-message {
  max-width: 86%;
  margin-bottom: 14px;
  padding: 11px 13px;
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.45;
}

.stage-message-user {
  margin-left: auto;
  background: #d8f6df;
}

.stage-message-lens {
  background: white;
  box-shadow: 0 3px 10px rgba(18, 25, 34, 0.08);
}

.stage-kicker {
  display: block;
  margin-bottom: 5px;
  color: var(--teal);
  font-size: 9px;
}

.stage-step {
  margin-top: 16px;
  padding: 14px;
  border-left: 3px solid var(--amber);
  background: #fffdf7;
}

.stage-step > span {
  color: #84610f;
  font-family: Consolas, "Courier New", monospace;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.stage-step p {
  margin: 5px 0 0;
  font-size: 12px;
  line-height: 1.45;
}

.stage-loop {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-top: 16px;
}

.stage-loop span {
  padding-top: 6px;
  border-top: 3px solid #c7d0cc;
  color: #6a756e;
  font-size: 9px;
  text-align: center;
}

.stage-loop .is-done {
  border-color: var(--teal);
  color: #146e68;
}

.band-dark {
  background: var(--ink);
  color: white;
}

.problem {
  padding: 112px 0;
}

.problem-grid {
  display: grid;
  grid-template-columns: 0.34fr 1fr;
  gap: 72px;
}

.problem .section-index,
.band-dark .section-index,
.band-blue .section-index {
  color: var(--teal-light);
}

.problem h2,
.section-heading h2,
.loop-intro h2,
.difference-intro h2,
.twin-section h2,
.safety h2,
.faq-intro h2,
.final-cta h2,
.legal-hero h1 {
  margin: 0;
  font-size: 48px;
  font-weight: 730;
  line-height: 1.08;
}

.prose > :first-child,
.faq-answer > :first-child,
.capability-list > :first-child {
  margin-top: 0;
}

.prose > :last-child,
.faq-answer > :last-child,
.capability-list > :last-child {
  margin-bottom: 0;
}

.prose p {
  margin: 0 0 18px;
}

.prose-light {
  color: #dce4e9;
}

.problem .prose {
  max-width: 780px;
  margin-top: 34px;
  color: #cbd4dc;
  font-size: 20px;
}

.solution,
.loop-section,
.difference,
.fit,
.faq {
  padding: 124px 0;
}

.solution-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.2fr;
  gap: 100px;
  align-items: start;
}

.section-heading h2,
.loop-intro h2,
.difference-intro h2,
.faq-intro h2 {
  max-width: 760px;
}

.section-note,
.loop-intro > p:last-child,
.difference-intro > p:last-child,
.faq-intro > p:last-child {
  max-width: 600px;
  margin: 24px 0 0;
  color: var(--ink-soft);
}

.capability-list > p {
  margin: 0 0 22px;
  color: var(--blue-dark);
  font-size: 22px;
  font-weight: 650;
}

.capability-list ul,
.prose ul,
.legal-content ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.capability-list li,
.prose li,
.legal-content li {
  position: relative;
  padding: 13px 0 13px 30px;
  border-top: 1px solid var(--line);
}

.capability-list li::before,
.prose li::before,
.legal-content li::before {
  position: absolute;
  top: 18px;
  left: 3px;
  width: 9px;
  height: 9px;
  background: var(--teal);
  content: "";
}

.band-mist {
  background: var(--mist);
}

.method,
.example,
.memory-reminders,
.safety {
  padding: 124px 0;
}

.section-heading-wide {
  display: grid;
  grid-template-columns: 0.34fr 1fr;
  gap: 72px;
  align-items: start;
  margin-bottom: 72px;
}

.method-list {
  max-width: 920px;
  padding: 0;
  margin: 0 0 0 auto;
  list-style: none;
}

.method-step {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 22px;
  padding: 32px 0 38px;
  border-top: 1px solid #b9c5cd;
}

.method-step:last-child {
  border-bottom: 1px solid #b9c5cd;
}

.step-number,
.loop-index,
.example-sequence > li > span {
  color: var(--blue);
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  font-weight: 750;
}

.method-step h3,
.loop-step h3,
.difference-item h3,
.example-sequence h3 {
  margin: 0 0 12px;
  font-size: 23px;
  line-height: 1.2;
}

.method-step p,
.method-step ul {
  margin: 0 0 14px;
}

.method-step ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 28px;
  padding: 0;
  list-style: none;
}

.method-step li {
  position: relative;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 15px;
}

.method-step li::before {
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--amber);
  content: "";
}

.method-step pre {
  overflow-x: auto;
  padding: 15px;
  border-left: 3px solid var(--teal);
  background: rgba(255, 255, 255, 0.65);
  font-size: 13px;
  white-space: pre-wrap;
}

.loop-intro {
  display: grid;
  grid-template-columns: 0.34fr 1fr;
  gap: 0 72px;
  margin-bottom: 78px;
}

.loop-intro .section-index {
  grid-row: 1 / span 2;
}

.loop-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 52px 34px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: loop;
}

.loop-step {
  min-height: 180px;
  padding-top: 18px;
  border-top: 4px solid var(--ink);
}

.loop-step:nth-child(2),
.loop-step:nth-child(5) {
  border-color: var(--teal);
}

.loop-step:nth-child(3),
.loop-step:nth-child(6) {
  border-color: var(--amber);
}

.loop-step .loop-index {
  display: block;
  margin-bottom: 28px;
}

.loop-step p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.band-warm {
  background: var(--amber-light);
}

.example-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 70px;
  align-items: start;
}

.example-chat {
  padding: 24px;
  border: 1px solid rgba(18, 25, 34, 0.18);
  border-radius: 8px;
  background: #f2f4ef;
  box-shadow: 0 18px 40px rgba(68, 53, 24, 0.12);
}

.message-label {
  margin: 14px 0 7px;
  color: #67552f;
  font-size: 10px;
}

.message-label:first-child {
  margin-top: 0;
}

.message {
  width: fit-content;
  max-width: 92%;
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 14px;
}

.message p,
.message blockquote {
  margin: 0;
}

.message blockquote {
  border: 0;
}

.message-user {
  margin-left: auto;
  background: #d7f2dc;
}

.message-generic {
  background: white;
  color: #62666a;
}

.message-lens {
  width: 100%;
  max-width: none;
  border-left: 4px solid var(--teal);
  background: var(--paper-strong);
}

.message-lens ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.message-lens li {
  padding: 5px 0;
}

.example-sequence {
  padding: 0;
  margin: 0;
  list-style: none;
}

.example-sequence > li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 0 0 34px;
}

.example-sequence > li:not(:last-child) > span {
  position: relative;
}

.example-sequence > li:not(:last-child) > span::after {
  position: absolute;
  top: 30px;
  bottom: -26px;
  left: 7px;
  width: 2px;
  background: rgba(18, 25, 34, 0.2);
  content: "";
}

.example-sequence blockquote,
.example-sequence p {
  margin: 0 0 12px;
}

.example-sequence blockquote {
  padding: 16px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 255, 255, 0.54);
}

.difference-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.2fr;
  gap: 100px;
  align-items: start;
}

.difference-intro {
  position: sticky;
  top: 112px;
}

.difference-list {
  border-top: 1px solid var(--line);
}

.difference-item {
  display: grid;
  grid-template-columns: 0.78fr 1.2fr;
  gap: 34px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.difference-item h3 {
  color: var(--blue-dark);
  font-size: 18px;
}

.difference-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.band-blue {
  background: var(--blue-dark);
  color: white;
}

.twin-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.twin-section {
  padding-right: 64px;
}

.twin-section-accent {
  padding-right: 0;
  padding-left: 64px;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}

.twin-section h2 {
  margin-bottom: 34px;
  font-size: 38px;
}

.twin-section .prose {
  font-size: 15px;
}

.twin-section .prose li {
  border-color: rgba(255, 255, 255, 0.22);
}

.twin-section .prose li::before {
  background: var(--amber);
}

.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.fit-column {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.fit-yes {
  background: #e6f5ef;
}

.fit-no {
  background: #f1ece9;
}

.fit-label {
  color: var(--ink);
  font-size: 11px;
}

.fit-column .prose > p:first-child {
  color: var(--ink-soft);
}

.fit-column .prose li {
  border-color: rgba(18, 25, 34, 0.15);
}

.fit-no .prose li::before {
  background: var(--danger);
}

.band-safety {
  background: var(--amber);
  color: #211a0c;
}

.safety-layout {
  display: grid;
  grid-template-columns: 0.28fr 1fr;
  gap: 72px;
  align-items: start;
}

.safety-mark {
  color: var(--paper);
  font-size: 130px;
  line-height: 0.8;
}

.safety h2 {
  max-width: 780px;
  font-size: 54px;
}

.safety .prose {
  max-width: 800px;
  margin-top: 28px;
  font-size: 18px;
}

.text-link-dark {
  margin-top: 22px;
  color: #211a0c;
}

.text-link-dark span {
  color: #211a0c;
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.62fr 1fr;
  gap: 100px;
  align-items: start;
}

.faq-intro {
  position: sticky;
  top: 112px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  padding: 24px 54px 24px 0;
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary span,
.faq-item summary span::after {
  position: absolute;
  top: 50%;
  right: 2px;
  width: 18px;
  height: 2px;
  background: var(--blue);
  content: "";
  transform: translateY(-50%);
}

.faq-item summary span::after {
  top: 1px;
  right: 0;
  transform: rotate(90deg);
  transition: transform 150ms ease;
}

.faq-item[open] summary span::after {
  transform: rotate(0);
}

.faq-answer {
  max-width: 720px;
  padding: 0 50px 26px 0;
  color: var(--ink-soft);
}

.final-cta {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background: var(--ink);
  color: white;
}

.final-cta > img {
  position: absolute;
  right: -40px;
  bottom: -100px;
  width: 520px;
  height: 520px;
  opacity: 0.14;
  transform: rotate(-8deg);
}

.final-inner {
  position: relative;
  z-index: 1;
  padding-top: 112px;
  padding-bottom: 100px;
}

.final-cta .section-index {
  color: var(--teal-light);
}

.final-cta h2 {
  max-width: 850px;
  font-size: 64px;
}

.final-copy {
  max-width: 650px;
  margin: 28px 0;
  color: #d3dce2;
  font-size: 18px;
}

.final-copy p {
  margin: 0;
}

.button-light {
  min-height: 54px;
  background: white;
  color: var(--ink);
}

.button-light:hover {
  background: var(--teal-light);
}

.final-note {
  margin: 18px 0 0;
  color: #9fabb4;
  font-size: 13px;
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid #2a333d;
  background: var(--ink);
  color: white;
}

.footer-grid {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px 40px;
}

.wordmark-footer {
  color: white;
}

.footer-grid > p {
  margin: 0;
  color: #aeb8c0;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
}

.footer-links a {
  color: white;
}

.footer-legal {
  grid-column: 1 / -1;
  padding-top: 20px;
  border-top: 1px solid #313c46;
}

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 480ms ease, transform 480ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.legal-page {
  background: var(--paper);
}

.legal-main {
  padding-top: 72px;
}

.legal-shell {
  width: min(calc(100% - 48px), 860px);
  margin-inline: auto;
}

.legal-hero {
  padding: 92px 0 74px;
  border-bottom: 1px solid var(--line);
  background: var(--mist);
}

.legal-hero h1 {
  font-size: 64px;
}

.legal-lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 21px;
}

.legal-updated {
  margin-top: 28px;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.legal-content {
  padding-top: 70px;
  padding-bottom: 110px;
}

.legal-summary {
  padding: 22px;
  border-left: 4px solid var(--teal);
  background: white;
}

.legal-summary p {
  margin: 8px 0 0;
}

.legal-content section {
  padding: 44px 0 0;
}

.legal-content h2 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.18;
}

.legal-content p {
  color: var(--ink-soft);
}

.legal-content li {
  color: var(--ink-soft);
}

.legal-back {
  margin-top: 58px;
}

.not-found {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  width: min(calc(100% - 48px), 760px);
  min-height: 100svh;
  margin-inline: auto;
  padding: 60px 0;
}

.not-found > img {
  margin-bottom: 34px;
}

.not-found h1 {
  max-width: 700px;
  margin: 0;
  font-size: 58px;
  line-height: 1.06;
}

.not-found > p:not(.eyebrow) {
  max-width: 620px;
  color: var(--ink-soft);
  font-size: 19px;
}

@media (max-width: 1120px) {
  .hero-inner {
    padding-right: 410px;
  }

  .product-stage {
    right: 32px;
    width: 360px;
  }

  .hero h1 {
    font-size: 70px;
  }

  .hero-tagline {
    font-size: 27px;
  }

  .difference-layout,
  .faq-layout {
    gap: 64px;
  }
}

@media (max-width: 920px) {
  .section-shell,
  .nav-shell,
  .hero-inner {
    width: min(calc(100% - 36px), var(--shell));
  }

  .nav-links {
    gap: 18px;
  }

  .nav-links > a:not(.nav-cta) {
    display: none;
  }

  .hero {
    height: 86svh;
    min-height: 650px;
  }

  .hero-inner {
    padding-right: 280px;
  }

  .hero h1 {
    font-size: 60px;
  }

  .hero-tagline {
    font-size: 25px;
  }

  .product-stage {
    right: -90px;
    width: 330px;
    opacity: 0.38;
  }

  .problem-grid,
  .solution-grid,
  .section-heading-wide,
  .loop-intro,
  .difference-layout,
  .safety-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .loop-intro .section-index {
    grid-row: auto;
  }

  .solution-grid,
  .difference-layout,
  .faq-layout {
    gap: 58px;
  }

  .section-heading-wide {
    margin-bottom: 50px;
  }

  .difference-intro,
  .faq-intro {
    position: static;
  }

  .twin-section {
    padding-right: 38px;
  }

  .twin-section-accent {
    padding-right: 0;
    padding-left: 38px;
  }

  .safety-mark {
    display: none;
  }

  .final-cta h2 {
    font-size: 54px;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .site-header,
  .nav-shell {
    height: 64px;
    min-height: 64px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 12px 18px 22px;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    box-shadow: 0 20px 40px rgba(18, 25, 34, 0.12);
    transform: translateY(-130%);
    transition: transform 180ms ease;
  }

  .nav-links.is-open {
    transform: translateY(0);
  }

  .nav-links > a:not(.nav-cta) {
    display: block;
    padding: 14px 4px;
    border-bottom: 1px solid var(--line);
  }

  .nav-links .nav-cta {
    margin-top: 14px;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    align-items: flex-start;
    height: 86svh;
    min-height: 610px;
    max-height: 740px;
  }

  .hero-grid {
    background-size: 52px 52px;
  }

  .hero-mark {
    top: auto;
    right: -130px;
    bottom: -150px;
    width: 430px;
    height: 430px;
    transform: rotate(7deg);
  }

  .hero-inner {
    margin-top: 0;
    padding-top: 112px;
    padding-right: 0;
  }

  .hero h1 {
    font-size: 50px;
  }

  .hero-tagline {
    margin-top: 20px;
    font-size: 26px;
  }

  .hero-copy {
    max-width: 570px;
    font-size: 16px;
  }

  .hero-actions {
    align-items: flex-start;
    gap: 18px;
  }

  .hero-trust {
    max-width: 500px;
    margin-top: 18px;
  }

  .product-stage {
    display: none;
  }

  .problem,
  .solution,
  .method,
  .loop-section,
  .example,
  .difference,
  .memory-reminders,
  .fit,
  .safety,
  .faq {
    padding: 84px 0;
  }

  .problem h2,
  .section-heading h2,
  .loop-intro h2,
  .difference-intro h2,
  .twin-section h2,
  .safety h2,
  .faq-intro h2,
  .final-cta h2 {
    font-size: 38px;
  }

  .problem .prose {
    margin-top: 24px;
    font-size: 17px;
  }

  .method-step {
    grid-template-columns: 48px 1fr;
  }

  .method-step ul {
    grid-template-columns: 1fr;
  }

  .loop-track {
    grid-template-columns: 1fr 1fr;
  }

  .example-layout,
  .twin-layout,
  .fit-grid {
    grid-template-columns: 1fr;
  }

  .example-layout {
    gap: 56px;
  }

  .twin-section,
  .twin-section-accent {
    padding: 0;
  }

  .twin-section-accent {
    padding-top: 54px;
    margin-top: 54px;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
    border-left: 0;
  }

  .difference-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .final-cta {
    min-height: 560px;
  }

  .final-cta > img {
    right: -180px;
  }

  .final-inner {
    padding-top: 84px;
  }

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

  .footer-legal {
    grid-column: auto;
  }

  .legal-main {
    padding-top: 64px;
  }

  .legal-hero {
    padding: 70px 0 56px;
  }

  .legal-hero h1 {
    font-size: 48px;
  }
}

@media (max-width: 480px) {
  .section-shell,
  .nav-shell,
  .hero-inner,
  .legal-shell {
    width: min(calc(100% - 28px), var(--shell));
  }

  .wordmark {
    font-size: 18px;
  }

  .hero {
    height: auto;
    min-height: 86svh;
    max-height: none;
  }

  .hero-inner {
    padding-top: 104px;
    padding-bottom: 46px;
  }

  .hero h1 {
    font-size: 44px;
  }

  .hero-tagline {
    font-size: 23px;
  }

  .hero-actions {
    display: grid;
    justify-items: start;
  }

  .button-primary {
    width: 100%;
  }

  .loop-track {
    grid-template-columns: 1fr;
  }

  .loop-step {
    min-height: 0;
  }

  .method-step {
    grid-template-columns: 38px 1fr;
  }

  .method-step h3,
  .loop-step h3,
  .difference-item h3,
  .example-sequence h3 {
    font-size: 20px;
  }

  .example-chat,
  .fit-column {
    padding: 20px;
  }

  .example-sequence > li {
    grid-template-columns: 38px 1fr;
    gap: 12px;
  }

  .safety h2,
  .final-cta h2 {
    font-size: 36px;
  }

  .faq-item summary {
    font-size: 16px;
  }

  .legal-hero h1 {
    font-size: 42px;
  }

  .legal-lead {
    font-size: 18px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

.nav-links a[aria-current="page"] {
  color: var(--blue);
  text-decoration-color: var(--amber);
  text-decoration-thickness: 2px;
}

.focus-page {
  padding-top: 72px;
}

.focus-hero {
  position: relative;
  display: flex;
  min-height: 720px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--mist);
}

.focus-hero-grid {
  position: absolute;
  inset: 0;
  background-color: var(--mist);
}

.focus-hero > img {
  position: absolute;
  right: max(-80px, calc((100vw - var(--shell)) / 2 - 80px));
  bottom: -88px;
  width: 560px;
  height: 560px;
  opacity: 0.24;
  transform: rotate(8deg);
}

.focus-hero-inner {
  position: relative;
  z-index: 1;
  align-self: center;
  padding-top: 84px;
  padding-right: 430px;
  padding-bottom: 86px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 58px;
  color: var(--ink-soft);
  font-size: 13px;
}

.breadcrumb a:hover {
  color: var(--blue);
}

.focus-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 76px;
  font-weight: 760;
  line-height: 0.99;
}

.focus-lead {
  max-width: 660px;
  margin-top: 30px;
  color: var(--ink-soft);
  font-size: 23px;
  line-height: 1.48;
}

.focus-lead p {
  margin: 0;
}

.focus-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  color: var(--teal);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.focus-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 780px);
  justify-content: space-between;
  gap: 84px;
  padding-top: 104px;
  padding-bottom: 126px;
}

.focus-toc {
  position: sticky;
  top: 108px;
  align-self: start;
  padding-top: 18px;
  border-top: 3px solid var(--ink);
}

.focus-toc > p {
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 750;
  text-transform: uppercase;
}

.focus-toc ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: focus-toc;
}

.focus-toc li {
  counter-increment: focus-toc;
  border-top: 1px solid var(--line);
}

.focus-toc a {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  padding: 12px 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.35;
  text-decoration: none;
}

.focus-toc a::before {
  content: counter(focus-toc, decimal-leading-zero);
  color: var(--teal);
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
}

.focus-toc a:hover {
  color: var(--blue);
}

.focus-article {
  min-width: 0;
}

.focus-section {
  scroll-margin-top: 100px;
  padding: 74px 0 82px;
  border-top: 1px solid var(--line);
}

.focus-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.focus-section-number {
  margin: 0 0 20px;
  color: var(--teal);
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  font-weight: 750;
}

.focus-section h2 {
  max-width: 700px;
  margin: 0 0 32px;
  font-size: 46px;
  font-weight: 740;
  line-height: 1.08;
}

.focus-section h3 {
  margin: 44px 0 16px;
  font-size: 24px;
  font-weight: 720;
  line-height: 1.2;
}

.focus-section p,
.focus-section li {
  font-size: 19px;
  line-height: 1.72;
}

.focus-section p {
  margin: 0 0 24px;
}

.focus-section ul {
  display: grid;
  gap: 13px;
  margin: 28px 0 32px;
  padding-left: 23px;
}

.focus-section li::marker {
  color: var(--teal);
}

.focus-section blockquote {
  margin: 38px 0;
  padding: 24px 28px;
  border-left: 5px solid var(--amber);
  background: var(--paper-strong);
  color: var(--blue-dark);
  font-size: 23px;
  font-weight: 650;
  line-height: 1.45;
}

.focus-section a {
  color: var(--blue);
}

.focus-section code {
  padding: 2px 5px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper-strong);
  font-size: 0.9em;
}

.focus-cta {
  padding: 96px 0 102px;
}

.focus-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 92px;
  align-items: start;
}

.focus-cta h2 {
  max-width: 700px;
  margin: 0;
  font-size: 48px;
  line-height: 1.08;
}

.focus-cta-inner > div:last-child > p {
  margin: 4px 0 28px;
  color: #dce7f3;
  font-size: 18px;
}

@media (max-width: 1080px) {
  .focus-hero-inner {
    padding-right: 330px;
  }

  .focus-hero > img {
    right: -120px;
    width: 500px;
    height: 500px;
  }

  .focus-layout {
    grid-template-columns: 210px minmax(0, 690px);
    gap: 54px;
  }
}

@media (max-width: 920px) {
  .focus-hero {
    min-height: 650px;
  }

  .focus-hero-inner {
    padding-right: 220px;
  }

  .focus-hero > img {
    right: -180px;
    bottom: -110px;
    opacity: 0.18;
  }

  .focus-hero h1 {
    font-size: 62px;
  }

  .focus-layout {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .focus-toc {
    position: static;
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 30px;
  }

  .focus-toc ol {
    grid-template-columns: 1fr 1fr;
    column-gap: 24px;
  }

  .focus-toc > p {
    margin: 0;
  }

  .focus-cta-inner {
    grid-template-columns: 1fr;
    gap: 38px;
  }
}

@media (max-width: 720px) {
  .focus-page {
    padding-top: 64px;
  }

  .focus-hero {
    min-height: 620px;
  }

  .focus-hero-inner {
    align-self: flex-start;
    padding-top: 70px;
    padding-right: 0;
    padding-bottom: 130px;
  }

  .breadcrumb {
    margin-bottom: 44px;
  }

  .focus-hero h1 {
    max-width: 560px;
    font-size: 50px;
  }

  .focus-lead {
    max-width: 520px;
    font-size: 20px;
  }

  .focus-hero > img {
    right: -130px;
    bottom: -190px;
    width: 420px;
    height: 420px;
    opacity: 0.16;
  }

  .focus-layout {
    gap: 58px;
    padding-top: 72px;
    padding-bottom: 86px;
  }

  .focus-toc {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .focus-toc ol {
    grid-template-columns: 1fr;
  }

  .focus-section {
    padding: 58px 0 64px;
  }

  .focus-section h2 {
    font-size: 38px;
  }

  .focus-section h3 {
    font-size: 22px;
  }

  .focus-section p,
  .focus-section li {
    font-size: 17px;
  }

  .focus-section blockquote {
    padding: 20px;
    font-size: 20px;
  }

  .focus-cta {
    padding: 72px 0 78px;
  }

  .focus-cta h2 {
    font-size: 38px;
  }
}

@media (max-width: 480px) {
  .focus-hero {
    min-height: 650px;
  }

  .focus-hero-inner {
    padding-top: 52px;
    padding-bottom: 124px;
  }

  .breadcrumb {
    margin-bottom: 36px;
  }

  .focus-hero h1 {
    font-size: 43px;
  }

  .focus-lead {
    font-size: 18px;
  }

  .focus-meta {
    display: grid;
    gap: 2px;
  }

  .focus-meta span {
    display: none;
  }

  .focus-hero > img {
    right: -118px;
    bottom: -150px;
    width: 350px;
    height: 350px;
  }

  .focus-layout {
    padding-top: 60px;
  }

  .focus-section h2 {
    font-size: 34px;
  }

  .focus-section blockquote {
    margin: 30px 0;
    border-left-width: 4px;
  }

  .focus-cta h2 {
    font-size: 34px;
  }
}