:root {
  color-scheme: light;
  --paper: #f7f2ea;
  --paper-deep: #eee5da;
  --surface: #fffaf3;
  --surface-strong: #ffffff;
  --ink: #241c1a;
  --ink-soft: #655956;
  --ink-faint: #6e615d;
  --line: #d9ccc2;
  --anchor: #a83f45;
  --anchor-deep: #78282f;
  --anchor-panel: #78282f;
  --anchor-wash: #eed6d3;
  --anchor-ink: #fff8f1;
  --badge: #171313;
  --badge-ink: #ffffff;
  --shadow: 0 26px 80px rgba(74, 34, 30, 0.16);
  --display: "Fraunces", Georgia, serif;
  --body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --content: min(1180px, calc(100% - 40px));
  --radius-small: 14px;
  --radius-medium: 24px;
  --radius-large: 38px;
  --section-space: clamp(5.75rem, 10vw, 9.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #191413;
    --paper-deep: #241b1a;
    --surface: #211a18;
    --surface-strong: #2a201e;
    --ink: #f7eee6;
    --ink-soft: #c7b9b2;
    --ink-faint: #b4a59f;
    --line: #493936;
    --anchor: #dc777a;
    --anchor-deep: #f09698;
    --anchor-panel: #67282e;
    --anchor-wash: #4b2829;
    --anchor-ink: #fff8f1;
    --badge: #f8f1eb;
    --badge-ink: #171313;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 68% 15%, color-mix(in srgb, var(--anchor-wash) 55%, transparent) 0, transparent 28rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.035'/%3E%3C/svg%3E");
  content: "";
  pointer-events: none;
}

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

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

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

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 0.7rem 1rem;
  transform: translateY(-150%);
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 0;
  transition: background-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--paper) 84%, transparent);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--line) 70%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
}

.nav-shell {
  width: var(--content);
  min-height: 56px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand img,
.footer-brand img {
  border: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
  border-radius: 10px;
  box-shadow: 0 5px 16px rgba(74, 34, 30, 0.11);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.8rem;
  font-weight: 600;
}

.nav-links a {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  text-decoration: none;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--anchor);
  content: "";
  transition: transform 180ms ease;
}

.nav-links a:hover,
.nav-links a[aria-current="true"] {
  color: var(--ink);
}

.nav-links a:hover::after,
.nav-links a[aria-current="true"]::after {
  transform: scaleX(1);
}

.nav-cta {
  min-height: 44px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: end;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease;
}

.nav-cta svg {
  width: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.nav-cta:hover {
  transform: translateY(-1px);
  background: var(--anchor-deep);
}

.hero {
  width: var(--content);
  min-height: min(780px, calc(100svh - 80px));
  margin-inline: auto;
  padding: clamp(3.5rem, 7vw, 7rem) 0 clamp(5rem, 8vw, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(460px, 1.05fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--anchor-deep);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

h1 {
  max-width: 11ch;
  font-size: clamp(3.25rem, 6.2vw, 6.7rem);
  font-variation-settings: "opsz" 110;
}

h2 {
  font-size: clamp(2.35rem, 4.2vw, 4.35rem);
  font-variation-settings: "opsz" 80;
}

h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.45rem, 2vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.hero-lede {
  max-width: 580px;
  margin: 1.75rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.4vw, 1.16rem);
  line-height: 1.72;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 18px;
}

.app-store-badge {
  width: 166px;
  min-width: 166px;
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  color: var(--badge);
  text-decoration: none;
  transition: transform 180ms ease, filter 180ms ease;
}

.app-store-badge:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 8px 12px rgba(36, 28, 26, 0.18));
}

.availability {
  max-width: 170px;
  margin: 0;
  color: var(--ink-faint);
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.5;
}

.hero-visual {
  position: relative;
  min-height: 540px;
  display: grid;
  place-items: center;
}

.paper-orbit {
  position: absolute;
  width: min(100%, 530px);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--anchor) 22%, transparent);
  border-radius: 50%;
}

.paper-orbit::before,
.paper-orbit::after {
  position: absolute;
  inset: 8%;
  border: 1px solid color-mix(in srgb, var(--anchor) 16%, transparent);
  border-radius: inherit;
  content: "";
}

.paper-orbit::after {
  inset: 18%;
  background: color-mix(in srgb, var(--anchor-wash) 40%, transparent);
}

.hero-icon {
  position: absolute;
  top: 16px;
  right: 6%;
  z-index: 3;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: 22px;
  box-shadow: 0 18px 42px rgba(74, 34, 30, 0.2);
}

.focus-stage {
  position: relative;
  z-index: 2;
  width: min(100%, 510px);
  min-height: 326px;
  padding: 26px 28px 24px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  border-radius: var(--radius-large);
  background: color-mix(in srgb, var(--surface-strong) 92%, transparent);
  box-shadow: var(--shadow);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.focus-stage__header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-faint);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.session-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--anchor);
  box-shadow: 0 0 0 5px var(--anchor-wash);
}

.wpm-readout {
  margin-left: auto;
}

.wpm-readout strong {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.focus-ruler {
  height: 22px;
  margin: 32px auto 3px;
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 22px;
}

.focus-ruler span {
  width: 1px;
  height: 7px;
  background: var(--line);
}

.focus-ruler span:nth-child(3) {
  height: 18px;
  background: var(--anchor);
}

.word-stage {
  position: relative;
  z-index: 2;
  height: 90px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(2.45rem, 5vw, 4.25rem);
  font-variation-settings: "opsz" 70;
  letter-spacing: -0.045em;
  line-height: 1;
  white-space: nowrap;
}

.word-stage strong {
  color: var(--anchor);
  font-weight: 700;
}

.word-stage span {
  font-weight: 500;
}

.word-stage .word-before {
  text-align: right;
}

.word-stage .word-after {
  color: color-mix(in srgb, var(--ink) 45%, transparent);
  text-align: left;
}

.anchor-axis {
  position: absolute;
  top: 68px;
  bottom: 64px;
  left: 50%;
  width: 1px;
  background: color-mix(in srgb, var(--anchor) 28%, transparent);
}

.focus-progress {
  height: 4px;
  margin-top: 8px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--paper-deep);
}

.focus-progress span {
  width: 68%;
  height: 100%;
  display: block;
  border-radius: inherit;
  background: var(--anchor);
}

.focus-stage > p {
  margin: 18px 0 0;
  color: var(--ink-faint);
  font-size: 0.69rem;
  font-weight: 600;
  text-align: center;
}

.visual-note {
  position: absolute;
  right: 0;
  bottom: 14px;
  left: 0;
  z-index: 3;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 26px;
  color: var(--ink-faint);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-transform: uppercase;
}

.visual-note span {
  position: relative;
}

.visual-note span:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -15px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--anchor);
  content: "";
}

.manifesto {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(3.5rem, 7vw, 6.5rem) 0;
}

.manifesto p {
  margin: 0;
  color: var(--ink-faint);
  font-family: var(--display);
  font-size: clamp(2rem, 4.2vw, 4.5rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
  text-align: center;
}

.manifesto strong {
  color: var(--anchor-deep);
  font-weight: 600;
}

.section-shell {
  width: var(--content);
  margin-inline: auto;
  padding-block: var(--section-space);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.65fr);
  align-items: end;
  gap: clamp(2rem, 7vw, 7rem);
}

.section-heading h2 {
  max-width: 12ch;
}

.section-heading > p,
.method-intro > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.feature-layout {
  margin-top: clamp(3rem, 6vw, 5.5rem);
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.feature-layout article {
  position: relative;
  overflow: hidden;
}

.feature-lead {
  min-height: 395px;
  padding: clamp(2rem, 4vw, 3.5rem);
  display: grid;
  grid-column: span 8;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 0.75fr);
  align-items: center;
  gap: 3rem;
  border-radius: var(--radius-large);
  background: var(--anchor-panel);
  color: var(--anchor-ink);
}

.feature-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 1.4rem;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, currentColor 18%, transparent);
  border-radius: 50%;
  color: var(--anchor);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.feature-lead .feature-icon {
  color: var(--anchor-ink);
}

.feature-kicker {
  margin: 0 0 0.5rem;
  color: color-mix(in srgb, var(--anchor-ink) 70%, transparent);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.feature-lead h3 {
  font-size: clamp(2.2rem, 3.5vw, 3.5rem);
}

.feature-lead__copy > p:last-child {
  max-width: 48ch;
  margin: 1.25rem 0 0;
  color: color-mix(in srgb, var(--anchor-ink) 78%, transparent);
  font-size: 0.94rem;
}

.anchor-specimen {
  position: relative;
  display: grid;
  gap: 2px;
  color: var(--anchor-ink);
  font-family: var(--display);
  font-size: clamp(2rem, 3.4vw, 3.35rem);
  letter-spacing: -0.04em;
  line-height: 1.03;
}

.anchor-specimen::before {
  position: absolute;
  top: -18px;
  bottom: -18px;
  left: -15px;
  width: 1px;
  background: color-mix(in srgb, var(--anchor-ink) 28%, transparent);
  content: "";
}

.anchor-specimen b {
  color: var(--anchor-ink);
  font-weight: 700;
}

.anchor-specimen i {
  color: color-mix(in srgb, var(--anchor-ink) 42%, transparent);
  font-style: normal;
  font-weight: 500;
}

.feature-item {
  min-height: 280px;
  padding: clamp(1.8rem, 3vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-medium);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
}

.feature-item h3 {
  font-size: 1.6rem;
}

.feature-item p {
  margin: 0.9rem 0 0;
  color: var(--ink-soft);
  font-size: 0.87rem;
  line-height: 1.65;
}

.feature-peripheral {
  grid-column: span 4;
}

.feature-chunking,
.feature-adaptive,
.feature-library {
  grid-column: span 4;
}

.feature-adaptive {
  background: var(--paper-deep);
}

.feature-library {
  border-color: transparent;
  background: var(--anchor-wash);
}

.feature-wide {
  min-height: 230px;
  padding: clamp(2rem, 4vw, 3rem);
  display: grid;
  grid-column: span 8;
  grid-template-columns: minmax(170px, 0.65fr) minmax(240px, 1.15fr) minmax(180px, 0.6fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-large);
}

.feature-wide .feature-icon {
  margin-bottom: 1rem;
}

.feature-wide > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.micro-chart {
  height: 110px;
  display: flex;
  align-items: end;
  gap: 8px;
}

.micro-chart span {
  width: 100%;
  height: var(--bar);
  display: block;
  border-radius: 999px 999px 3px 3px;
  background: var(--anchor);
  opacity: calc(0.32 + var(--bar) / 130%);
}

.method {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(430px, 1.2fr);
  gap: clamp(3rem, 9vw, 8.5rem);
  border-top: 1px solid var(--line);
}

.method-intro {
  align-self: start;
  position: sticky;
  top: 126px;
}

.method-intro h2 {
  max-width: 10ch;
}

.method-intro > p:last-child {
  max-width: 42ch;
  margin-top: 1.5rem;
}

.method-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.method-steps li {
  min-height: 210px;
  padding: 2rem 0;
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.method-steps li:first-child {
  padding-top: 0;
}

.step-number {
  color: var(--anchor-deep);
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
}

.method-steps h3 {
  font-size: clamp(1.7rem, 2.6vw, 2.45rem);
}

.method-steps p {
  max-width: 47ch;
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.outcomes {
  padding: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
  border-radius: var(--radius-large);
  background: var(--ink);
  color: var(--paper);
}

.outcomes .eyebrow {
  color: color-mix(in srgb, var(--paper) 65%, transparent);
}

.outcomes h2 {
  max-width: 11ch;
  font-size: clamp(2.35rem, 4.2vw, 4rem);
}

.outcome-list {
  align-self: center;
}

.outcome-list p {
  margin: 0;
  padding: 1.35rem 0;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 18px;
  border-bottom: 1px solid color-mix(in srgb, var(--paper) 18%, transparent);
  color: color-mix(in srgb, var(--paper) 82%, transparent);
  font-size: 0.9rem;
}

.outcome-list p:first-child {
  border-top: 1px solid color-mix(in srgb, var(--paper) 18%, transparent);
}

.outcome-list span {
  color: var(--anchor);
  font-family: var(--display);
  font-weight: 600;
}

.faq {
  display: grid;
  grid-template-columns: minmax(230px, 0.55fr) minmax(0, 1fr);
  gap: clamp(3rem, 9vw, 9rem);
}

.faq-heading {
  align-self: start;
  position: sticky;
  top: 126px;
}

.faq-heading h2 {
  max-width: 6ch;
}

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

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

.faq-list summary {
  position: relative;
  min-height: 76px;
  padding: 1.45rem 58px 1.45rem 0;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

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

.faq-list summary::before,
.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 8px;
  width: 18px;
  height: 1.5px;
  background: var(--anchor);
  content: "";
  transition: transform 180ms ease;
}

.faq-list summary::after {
  transform: rotate(90deg);
}

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

.faq-list details > div {
  overflow: hidden;
}

.faq-list details p {
  max-width: 66ch;
  margin: -0.35rem 0 1.75rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.final-cta {
  margin-bottom: var(--section-space);
  padding: clamp(3rem, 6vw, 5.25rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 3rem;
  border-radius: var(--radius-large);
  background: var(--anchor-panel);
  color: var(--anchor-ink);
}

.final-cta img {
  margin-bottom: 2rem;
  border: 1px solid color-mix(in srgb, var(--anchor-ink) 25%, transparent);
  border-radius: 19px;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18);
}

.final-cta .eyebrow {
  color: color-mix(in srgb, var(--anchor-ink) 68%, transparent);
}

.final-cta h2 {
  max-width: 15ch;
  font-size: clamp(2.25rem, 4vw, 4rem);
}

.app-store-badge--light {
  --badge: var(--anchor-ink);
  --badge-ink: var(--anchor-panel);
}

.site-footer {
  width: var(--content);
  min-height: 120px;
  margin-inline: auto;
  padding: 28px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 0.72rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  gap: 24px;
  justify-self: end;
}

.site-footer a:hover {
  color: var(--anchor-deep);
}

@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 360ms ease-out, transform 360ms ease-out;
  }

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

  .hero-visual {
    animation: gentle-float 6s ease-in-out infinite;
  }

  .hero-icon {
    animation: icon-counter-float 6s ease-in-out infinite;
  }

  @keyframes gentle-float {
    0%,
    100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-8px);
    }
  }

  @keyframes icon-counter-float {
    0%,
    100% {
      transform: translateY(0) rotate(1deg);
    }
    50% {
      transform: translateY(14px) rotate(-2deg);
    }
  }
}

@media (max-width: 980px) {
  :root {
    --content: min(100% - 36px, 760px);
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-copy {
    max-width: 720px;
  }

  h1 {
    max-width: 12ch;
  }

  .hero-visual {
    min-height: 510px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 1.5rem;
  }

  .section-heading > p {
    max-width: 58ch;
  }

  .feature-lead {
    grid-column: 1 / -1;
  }

  .feature-peripheral,
  .feature-chunking,
  .feature-adaptive,
  .feature-library {
    grid-column: span 6;
  }

  .feature-wide {
    grid-column: 1 / -1;
  }

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

  .method-intro,
  .faq-heading {
    position: static;
  }

  .method-intro h2 {
    max-width: 13ch;
  }

  .outcomes,
  .faq {
    grid-template-columns: 1fr;
  }

  .faq {
    gap: 2.5rem;
  }
}

@media (max-width: 720px) {
  :root {
    --content: calc(100% - 32px);
    --radius-large: 28px;
    --radius-medium: 20px;
  }

  html {
    scroll-padding-top: 80px;
  }

  .site-header {
    padding: 8px 0;
  }

  .nav-shell {
    min-height: 52px;
    grid-template-columns: 1fr auto;
    gap: 12px;
  }

  .nav-links {
    display: none;
  }

  .brand span {
    max-width: 135px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nav-cta {
    padding: 0 15px;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .availability {
    max-width: none;
  }

  .hero-visual {
    min-height: 400px;
  }

  .paper-orbit {
    width: min(390px, 100%);
  }

  .hero-icon {
    top: 2px;
    right: 3%;
    width: 70px;
    height: 70px;
    border-radius: 17px;
  }

  .focus-stage {
    min-height: 286px;
    padding: 22px 18px;
    border-radius: 26px;
  }

  .focus-ruler {
    margin-top: 24px;
  }

  .word-stage {
    height: 78px;
  }

  .visual-note {
    bottom: 0;
    gap: 16px;
    font-size: 0.53rem;
  }

  .visual-note span:not(:last-child)::after {
    right: -10px;
  }

  .feature-layout {
    gap: 14px;
  }

  .feature-lead {
    min-height: auto;
    padding: 2.25rem 1.5rem;
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .anchor-specimen {
    margin-left: 12px;
  }

  .feature-peripheral,
  .feature-chunking,
  .feature-adaptive,
  .feature-library {
    min-height: auto;
    grid-column: 1 / -1;
  }

  .feature-wide {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .micro-chart {
    height: 82px;
  }

  .method-steps li {
    min-height: auto;
    padding: 1.75rem 0;
    grid-template-columns: 50px 1fr;
    gap: 12px;
  }

  .outcomes {
    padding: 2.3rem 1.4rem;
  }

  .final-cta {
    padding: 2.5rem 1.4rem;
    grid-template-columns: 1fr;
    align-items: start;
  }

  .site-footer {
    padding: 32px 0 40px;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .site-footer nav {
    justify-self: start;
  }
}

@media (max-width: 380px) {
  :root {
    --content: calc(100% - 28px);
  }

  .brand span {
    max-width: 105px;
  }

  .nav-cta {
    padding: 0 13px;
  }

  .nav-cta svg {
    display: none;
  }

  h1 {
    font-size: 3rem;
  }

  .hero-visual {
    min-height: 375px;
  }

  .focus-stage {
    min-height: 270px;
  }

  .word-stage {
    font-size: 2.2rem;
  }

  .visual-note {
    font-size: 0.48rem;
    letter-spacing: 0.03em;
  }

  .method-steps li {
    grid-template-columns: 42px 1fr;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header.is-scrolled,
  .focus-stage {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: var(--surface-strong);
  }
}

:root{--guide-accent:var(--anchor,var(--green,var(--canopy,var(--slate,#2f6fe4))));--guide-ink:var(--ink,var(--text,#17202a));--guide-muted:var(--muted,var(--ink-soft,#5e6b76));--guide-line:var(--line,rgba(20,35,45,.16));--guide-surface:var(--surface-raised,var(--paper-raised,var(--surface,var(--paper,#fff))));--guide-bg:var(--paper,var(--surface,#fff));--guide-tint:var(--anchor-soft,var(--canopy-soft,var(--slate-wash,rgba(50,110,220,.08))))}
/* Arc Tools SEO guide surfaces */
/* Additive, theme-aware resource surfaces used by generated guide hubs. */
.seo-guides{padding:clamp(3rem,7vw,6rem) 0;border-top:1px solid var(--guide-line)}
.seo-guides-inner,.guide-shell{width:min(100% - 2rem,64rem);margin:0 auto}
.seo-guides-kicker,.guide-kicker{margin:0 0 .55rem;color:var(--guide-accent);font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.seo-guides h2,.guide-hero h1,.guide-article h2{color:var(--guide-ink);font-family:var(--display,var(--body,system-ui));line-height:1.08;letter-spacing:-.025em}
.seo-guides h2{max-width:30rem;margin:.2rem 0 .8rem;font-size:clamp(1.7rem,3vw,2.5rem)}
.seo-guides p,.guide-hero p,.guide-article p,.guide-article li{color:var(--guide-muted);line-height:1.7}
.seo-guides-intro{max-width:44rem;margin:0 0 1.4rem}
.seo-guides-links{display:flex;flex-wrap:wrap;gap:.65rem 1rem;margin:1.25rem 0}
.seo-guides-links a,.guide-nav a{color:var(--guide-accent);font-weight:700;text-decoration:underline;text-decoration-thickness:.08em;text-underline-offset:.16em}
.seo-guides-more{display:inline-flex;align-items:center;min-height:2.75rem;padding:.7rem 1rem;border:1px solid var(--guide-line);border-radius:999px;background:var(--guide-surface);color:var(--guide-ink)!important;text-decoration:none!important}
.guide-page{background:var(--guide-bg);color:var(--guide-ink)}
.guide-shell{padding-block:clamp(2rem,6vw,5rem)}
.guide-nav{display:flex;justify-content:space-between;gap:1rem;align-items:center;margin-bottom:clamp(2rem,5vw,4rem);font-size:.95rem}
.guide-nav a:first-child{font-weight:700;text-decoration:none}
.guide-hero{max-width:48rem;margin-bottom:clamp(2.5rem,6vw,5rem)}
.guide-hero h1{margin:.2rem 0 1rem;font-size:clamp(2.1rem,5vw,4.5rem)}
.guide-hero .guide-summary{max-width:42rem;font-size:clamp(1.08rem,1.5vw,1.28rem)}
.guide-index-list{display:grid;gap:1rem;margin:2rem 0 0;padding:0;list-style:none}
.guide-index-list li{margin:0}
.guide-index-link{display:block;padding:1.15rem 1.25rem;border:1px solid var(--guide-line);border-radius:1rem;background:var(--guide-surface);text-decoration:none;transition:transform .2s ease,border-color .2s ease}
.guide-index-link:hover,.guide-index-link:focus-visible{transform:translateY(-2px);border-color:var(--guide-accent)}
.guide-index-link strong{display:block;color:var(--guide-ink);font-size:1.08rem;margin-bottom:.3rem}
.guide-index-link span{color:var(--guide-muted)}
.guide-article{max-width:46rem}
.guide-article h2{margin:2.4rem 0 .75rem;font-size:clamp(1.35rem,2.5vw,2rem)}
.guide-article ul{padding-left:1.2rem}
.guide-article li+li{margin-top:.55rem}
.guide-callout{margin:2rem 0;padding:1.1rem 1.25rem;border-left:3px solid var(--guide-accent);background:var(--guide-tint);border-radius:0 .8rem .8rem 0}
.guide-callout p{margin:0}
.guide-footer-links{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid var(--guide-line)}
@media (min-width:48rem){.seo-guides-inner,.guide-shell{width:min(100% - 4rem,64rem)}}
@media (prefers-reduced-motion:reduce){.guide-index-link{transition:none}.guide-index-link:hover{transform:none}}