:root {
  color-scheme: light dark;
  --font-display: "Space Grotesk", "Helvetica Neue", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ink: #090d1c;
  --ink-soft: #171d31;
  --paper: #f7f9ff;
  --surface: #eef2fb;
  --surface-strong: #e3e9f7;
  --text: #11162a;
  --muted: #566078;
  --line: #cdd5e7;
  --anchor: #195dcc;
  --anchor-bright: #2478ff;
  --accent: #6431d7;
  --white: #ffffff;
  --shadow: 0 28px 80px rgba(26, 44, 94, .18);
  --radius-sm: .75rem;
  --radius-md: 1.125rem;
  --radius-lg: 1.75rem;
  --container: 75rem;
  --display: clamp(2.75rem, 5.7vw, 5.5rem);
  --heading: clamp(2rem, 4.3vw, 4.25rem);
  --body: clamp(1rem, .96rem + .2vw, 1.125rem);
  --caption: .8125rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
  background: var(--paper);
}

body {
  margin: 0;
  min-inline-size: 20rem;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--body);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

img {
  block-size: auto;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

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

::selection {
  background: var(--anchor);
  color: var(--white);
}

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  letter-spacing: -.04em;
  line-height: 1.04;
}

p {
  color: var(--muted);
}

.skip-link {
  position: fixed;
  inset-block-start: .75rem;
  inset-inline-start: .75rem;
  z-index: 100;
  transform: translateY(-180%);
  border-radius: .5rem;
  background: var(--white);
  color: var(--ink);
  padding: .75rem 1rem;
  font-weight: 600;
}

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

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 50;
  border-block-end: 1px solid transparent;
  transition: background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.site-header.is-scrolled {
  border-color: color-mix(in srgb, var(--line), transparent 30%);
  background: color-mix(in srgb, var(--paper), transparent 12%);
  box-shadow: 0 10px 30px rgba(16, 25, 55, .07);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.nav-shell {
  inline-size: min(calc(100% - 2rem), var(--container));
  min-block-size: 4.75rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  min-block-size: 44px;
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: -.02em;
}

.brand img,
.footer-brand img {
  border-radius: .7rem;
  box-shadow: 0 7px 18px rgba(54, 45, 165, .25);
}

.brand b {
  margin-inline-start: .25rem;
  color: var(--anchor);
}

.brand-short {
  display: none;
  font-weight: 700;
}

.nav-actions,
.nav-links {
  display: flex;
  align-items: center;
}

.nav-actions {
  gap: clamp(.5rem, 2vw, 1.75rem);
}

.nav-links {
  gap: clamp(.25rem, 1vw, .75rem);
}

.nav-links a,
.nav-cta {
  min-block-size: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: .875rem;
  font-weight: 600;
}

.nav-links a {
  padding-inline: .75rem;
  color: var(--muted);
  transition: color .2s ease, background-color .2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="true"] {
  background: var(--surface);
  color: var(--text);
}

.nav-cta {
  background: var(--ink);
  color: var(--white);
  padding-inline: 1.2rem;
  transition: transform .2s ease, background-color .2s ease;
}

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

.hero {
  position: relative;
  min-block-size: 51rem;
  overflow: hidden;
  padding: 8.75rem 1rem 5.5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset-block-start: -16rem;
  inset-inline-end: -12rem;
  inline-size: 44rem;
  block-size: 44rem;
  border: 1px solid color-mix(in srgb, var(--anchor-bright), transparent 72%);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem color-mix(in srgb, var(--anchor-bright), transparent 96%), 0 0 0 10rem color-mix(in srgb, var(--accent), transparent 97%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  inline-size: min(100%, var(--container));
  margin-inline: auto;
  display: grid;
  align-items: center;
  gap: 4rem;
}

.hero-copy {
  max-inline-size: 47rem;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-block-end: 1.15rem;
  color: var(--anchor);
  font-family: var(--font-display);
  font-size: var(--caption);
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.3;
  text-transform: uppercase;
}

.signal-dot {
  inline-size: .5rem;
  block-size: .5rem;
  border-radius: 50%;
  background: var(--anchor-bright);
  box-shadow: 0 0 0 .28rem color-mix(in srgb, var(--anchor-bright), transparent 82%);
}

h1 {
  max-inline-size: 13ch;
  font-size: var(--display);
}

.hero-lede {
  max-inline-size: 41rem;
  margin-block-start: 1.5rem;
  font-size: clamp(1.1rem, 1rem + .6vw, 1.42rem);
  line-height: 1.55;
}

.hero-actions {
  margin-block-start: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem 1.25rem;
  flex-wrap: wrap;
}

.store-badge {
  min-inline-size: 184px;
  min-block-size: 60px;
  display: inline-flex;
  border-radius: .7rem;
  transition: transform .2s ease, box-shadow .2s ease;
}

.store-badge svg {
  inline-size: 184px;
  block-size: 60px;
}

.store-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(10, 15, 35, .22);
}

.price-note {
  color: var(--muted);
  font-size: .88rem;
}

.proof-points {
  margin: 1.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.25rem;
  list-style: none;
  color: var(--muted);
  font-size: .875rem;
}

.proof-points li {
  display: flex;
  align-items: center;
  gap: .35rem;
}

.proof-points svg {
  inline-size: 1rem;
  stroke: var(--anchor);
  stroke-width: 2;
  fill: none;
}

.hero-visual {
  position: relative;
  max-inline-size: 47rem;
  margin-inline: auto;
  padding: 5.5rem .25rem 4rem;
}

.rank-orbit {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orbit {
  position: absolute;
  inset: 1.5rem -1.25rem;
  border: 1px solid color-mix(in srgb, var(--anchor-bright), transparent 54%);
  border-radius: 50%;
  transform: rotate(-8deg);
}

.orbit-two {
  inset: 3.5rem -2.5rem;
  border-color: color-mix(in srgb, var(--accent), transparent 65%);
  transform: rotate(10deg);
}

.rank-chip {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px;
  background: rgba(11, 17, 39, .92);
  box-shadow: 0 14px 30px rgba(5, 9, 25, .25);
  color: #fff;
  padding: .58rem .75rem .58rem .9rem;
  font-size: .74rem;
  backdrop-filter: blur(8px);
}

.rank-chip b {
  font-weight: 500;
}

.rank-chip span {
  border-radius: 999px;
  background: rgba(36, 120, 255, .22);
  color: #89b6ff;
  padding: .15rem .45rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.chip-one {
  inset-block-start: 1.5rem;
  inset-inline-start: 7%;
}

.chip-two {
  inset-block-start: 17%;
  inset-inline-end: -1rem;
}

.chip-three {
  inset-block-end: 1.25rem;
  inset-inline-start: 18%;
}

.mac-frame,
.screen-window {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  background: #080d1b;
  box-shadow: var(--shadow);
}

.mac-frame {
  border-radius: 1.25rem;
  transform: perspective(75rem) rotateX(1deg) rotateY(-3deg) rotateZ(1deg);
}

.mac-topbar {
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 2;
  block-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: .32rem;
  padding-inline: .7rem;
  background: rgba(4, 7, 16, .78);
}

.mac-topbar span,
.window-dots i {
  inline-size: .42rem;
  block-size: .42rem;
  border-radius: 50%;
  background: #ff625a;
}

.mac-topbar span:nth-child(2),
.window-dots i:nth-child(2) {
  background: #ffc04a;
}

.mac-topbar span:nth-child(3),
.window-dots i:nth-child(3) {
  background: #32c852;
}

.mac-topbar .camera {
  position: absolute;
  inset-inline-start: 50%;
  inline-size: 4rem;
  block-size: .7rem;
  border-radius: 0 0 .5rem .5rem;
  background: #02040b;
  transform: translateX(-50%);
}

.mac-frame img {
  inline-size: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.visual-caption {
  position: relative;
  z-index: 2;
  margin-block-start: 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--muted);
  font-size: .82rem;
}

.visual-caption span,
.screen-slide figcaption > span {
  color: var(--anchor);
  font-family: var(--font-display);
  font-weight: 700;
}

.signal-bar {
  border-block: 1px solid var(--line);
  padding: 1rem max(1rem, calc((100vw - var(--container)) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  overflow: hidden;
  background: var(--surface);
  color: var(--muted);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.signal-bar p {
  flex: 0 0 auto;
  color: var(--anchor);
}

.signal-flow {
  min-inline-size: 42rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .75rem;
}

.signal-flow i {
  inline-size: clamp(1rem, 3vw, 3rem);
  block-size: 1px;
  background: var(--line);
}

.section {
  padding: clamp(5rem, 9vw, 9rem) 1rem;
}

.section-intro {
  inline-size: min(100%, var(--container));
  margin-inline: auto;
  margin-block-end: clamp(2.5rem, 5vw, 4.5rem);
}

.section-intro h2,
.how-heading h2,
.faq-heading h2 {
  max-inline-size: 15ch;
  font-size: var(--heading);
}

.section-intro > p,
.section-intro-row > p,
.how-heading > p,
.faq-heading > p {
  max-inline-size: 39rem;
  margin-block-start: 1.25rem;
}

.features-section {
  background: var(--paper);
}

.decision-model {
  inline-size: min(100%, var(--container));
  margin: 0 auto 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.model-title {
  min-block-size: 2.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-block-end: 1px solid var(--line);
  background: var(--surface);
  padding-inline: 1rem;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: .67rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.model-title b {
  color: var(--anchor);
  font-weight: 700;
}

.model-equation {
  min-inline-size: 50rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(9rem, 1fr) auto) minmax(11rem, 1.1fr);
  align-items: center;
  gap: .75rem;
  padding: 1rem;
}

.model-equation span,
.model-equation strong {
  min-block-size: 4.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: .75rem;
  padding: .65rem .85rem;
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: -.02em;
}

.model-equation span {
  border: 1px solid var(--line);
  background: var(--surface);
}

.model-equation strong {
  background: var(--ink);
  color: #fff;
  font-weight: 600;
}

.model-equation small {
  margin-block-end: .15rem;
  color: var(--anchor);
  font-family: var(--font-body);
  font-size: .61rem;
  font-weight: 600;
  letter-spacing: .1em;
}

.model-equation i {
  color: var(--anchor);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: normal;
  font-weight: 700;
}

.feature-layout {
  inline-size: min(100%, var(--container));
  margin-inline: auto;
  display: grid;
  gap: 1rem;
}

.feature,
.feature-stack {
  min-inline-size: 0;
}

.feature {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: clamp(1.4rem, 3vw, 2.25rem);
}

.feature h3 {
  margin-block-start: .6rem;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
}

.feature p {
  margin-block-start: .85rem;
}

.feature-index {
  color: var(--anchor);
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .11em;
}

.icon-shell {
  inline-size: 2.75rem;
  block-size: 2.75rem;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  margin-block-end: 1.25rem;
  border-radius: .75rem;
  background: var(--ink);
  color: #85b5ff;
}

.icon-shell svg {
  inline-size: 1.4rem;
  block-size: 1.4rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.feature-lead {
  display: grid;
  gap: 2rem;
  background: var(--ink);
  border-color: var(--ink);
  color: #f7f9ff;
}

.feature-lead p {
  color: #abb5cf;
}

.feature-lead .icon-shell {
  background: rgba(36, 120, 255, .15);
}

.keyword-board {
  align-self: end;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: .85rem;
  background: #0d1429;
  font-size: .78rem;
}

.keyword-head,
.keyword-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3rem 4rem;
  align-items: center;
  gap: .4rem;
  padding: .65rem .75rem;
}

.keyword-head {
  border-block-end: 1px solid rgba(255, 255, 255, .08);
  color: #78849f;
  font-size: .65rem;
  text-transform: uppercase;
}

.keyword-row + .keyword-row {
  border-block-start: 1px solid rgba(255, 255, 255, .06);
}

.keyword-row.active {
  background: rgba(36, 120, 255, .11);
  box-shadow: inset 3px 0 var(--anchor-bright);
}

.keyword-row b {
  overflow: hidden;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.keyword-row span {
  color: #97a4bf;
  font-variant-numeric: tabular-nums;
}

.keyword-row strong {
  justify-self: end;
  border-radius: 999px;
  background: rgba(36, 120, 255, .15);
  color: #8dbaff;
  padding: .15rem .45rem;
  font-size: .72rem;
  font-variant-numeric: tabular-nums;
}

.feature-stack {
  display: grid;
  gap: 1rem;
}

.feature-compact {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
}

.feature-compact .icon-shell {
  margin: 0;
}

.feature-wide {
  display: grid;
  align-items: end;
  gap: 2rem;
}

.feature-wide-copy {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
}

.feature-wide-copy .icon-shell {
  margin: 0;
}

.composer-line {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: .65rem;
  background: var(--paper);
  padding: .85rem 1rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text);
  font-size: .85rem;
}

.composer-line span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.composer-line b {
  flex: 0 0 auto;
  color: var(--anchor);
  font-variant-numeric: tabular-nums;
}

.feature-private {
  background: color-mix(in srgb, var(--accent), var(--surface) 94%);
}

.screenshots-section {
  overflow: hidden;
  background: var(--ink);
  color: #f7f9ff;
}

.screenshots-section .eyebrow {
  color: #75aaff;
}

.screenshots-section .section-intro-row > p,
.screen-slide figcaption {
  color: #aab3c8;
}

.section-intro-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.section-intro-row > p {
  margin-block-end: .3rem;
}

.screenshot-strip {
  inline-size: min(100%, calc(var(--container) + (100vw - var(--container)) / 2));
  margin-inline-start: max(1rem, calc((100vw - var(--container)) / 2));
  display: flex;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: .5rem max(1rem, calc((100vw - var(--container)) / 2)) 2rem 0;
  scroll-padding-inline-start: 0;
  scroll-snap-type: x mandatory;
  scrollbar-color: #46516d transparent;
  scrollbar-width: thin;
  touch-action: pan-x;
}

.screen-slide {
  flex: 0 0 min(82vw, 49rem);
  margin: 0;
  scroll-snap-align: start;
}

.screen-window {
  border-radius: 1.1rem;
  box-shadow: 0 32px 70px rgba(0, 0, 0, .35);
}

.window-dots {
  position: absolute;
  inset-block-start: .8rem;
  inset-inline-start: .9rem;
  z-index: 2;
  display: flex;
  gap: .3rem;
}

.window-dots i {
  inline-size: .36rem;
  block-size: .36rem;
}

.screen-window img {
  inline-size: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.screen-slide figcaption {
  max-inline-size: 43rem;
  margin-block-start: 1.15rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .15rem .75rem;
  font-size: .95rem;
}

.screen-slide figcaption > span {
  grid-row: 1 / 3;
}

.screen-slide figcaption b {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.3;
}

.scroll-cue {
  inline-size: min(calc(100% - 2rem), var(--container));
  margin: 1rem auto 0;
  color: #7f8aa4;
  font-size: .8rem;
  text-align: end;
}

.scroll-cue span {
  margin-inline-start: .4rem;
  color: #75aaff;
}

.how-section {
  background: var(--surface);
}

.how-layout,
.faq-layout {
  inline-size: min(100%, var(--container));
  margin-inline: auto;
  display: grid;
  gap: clamp(3rem, 7vw, 7rem);
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.2rem;
  padding-block: 1.7rem;
  border-block-start: 1px solid var(--line);
}

.steps li:last-child {
  border-block-end: 1px solid var(--line);
}

.steps li::before {
  content: "";
  position: absolute;
  inset-block-start: 3.9rem;
  inset-inline-start: 1.15rem;
  block-size: calc(100% - 3.9rem);
  border-inline-start: 1px dashed var(--line);
}

.steps li:last-child::before {
  display: none;
}

.step-number {
  inline-size: 2.4rem;
  block-size: 2.4rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #9ec4ff;
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 700;
}

.steps h3 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
}

.steps p {
  margin-block-start: .55rem;
}

.faq-section {
  background: var(--paper);
}

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

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

.faq-list summary {
  min-block-size: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 600;
  line-height: 1.3;
  list-style: none;
}

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

.faq-list summary span {
  position: relative;
  inline-size: 2rem;
  block-size: 2rem;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.faq-list summary span::before,
.faq-list summary span::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  inline-size: .7rem;
  block-size: 1px;
  background: var(--anchor);
  transform: translate(-50%, -50%);
  transition: transform .2s ease;
}

.faq-list summary span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-list details[open] summary span::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-list details p {
  max-inline-size: 43rem;
  padding-block: 0 1.5rem;
}

.final-cta {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
  padding: clamp(4rem, 8vw, 7rem) 1rem;
}

.cta-orbit {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-end: -8rem;
  inline-size: 35rem;
  block-size: 19rem;
  border: 1px solid rgba(74, 134, 255, .35);
  border-radius: 50%;
  box-shadow: 0 0 0 4rem rgba(100, 49, 215, .05), 0 0 0 8rem rgba(36, 120, 255, .035);
  transform: translateY(-50%) rotate(-12deg);
}

.final-cta-inner {
  position: relative;
  z-index: 1;
  inline-size: min(100%, var(--container));
  margin-inline: auto;
  display: grid;
  align-items: center;
  gap: 1.5rem;
}

.final-cta-inner > img {
  border-radius: 1.25rem;
  box-shadow: 0 16px 40px rgba(47, 71, 209, .35);
}

.final-cta .eyebrow {
  margin-block-end: .75rem;
  color: #75aaff;
}

.final-cta h2 {
  max-inline-size: 17ch;
  font-size: clamp(2rem, 4vw, 3.75rem);
}

.final-cta p {
  max-inline-size: 39rem;
  margin-block-start: .9rem;
  color: #adb7cf;
}

.site-footer {
  border-block-start: 1px solid var(--line);
  background: var(--paper);
}

.footer-inner {
  inline-size: min(calc(100% - 2rem), var(--container));
  min-block-size: 6rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  font-size: .82rem;
}

.footer-brand,
.footer-links {
  display: flex;
  align-items: center;
  gap: .65rem;
}

.footer-brand {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
}

.footer-links {
  gap: .4rem;
}

.footer-links a {
  min-block-size: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding-inline: .75rem;
  color: var(--muted);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  background: var(--surface);
  color: var(--text);
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(16px);
}

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

.error-page {
  min-block-size: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background: var(--ink);
  color: #fff;
}

.error-shell {
  inline-size: min(100%, 42rem);
  text-align: center;
}

.error-shell img {
  inline-size: 5.5rem;
  margin-inline: auto;
  border-radius: 1.25rem;
  box-shadow: 0 18px 45px rgba(63, 76, 222, .35);
}

.error-code {
  margin-block-start: 1.5rem;
  color: #75aaff;
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
}

.error-shell h1 {
  margin-block-start: .75rem;
  font-size: clamp(2.3rem, 8vw, 5rem);
}

.error-shell p {
  max-inline-size: 35rem;
  margin: 1rem auto 0;
  color: #adb7cf;
}

.home-link {
  min-block-size: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-block-start: 1.75rem;
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  padding-inline: 1.4rem;
  font-weight: 600;
}

@media (min-width: 48rem) {
  .hero {
    padding-inline: 2rem;
  }

  .section {
    padding-inline: 2rem;
  }

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

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

  .feature-lead {
    grid-template-columns: minmax(0, 1fr) minmax(18rem, .9fr);
  }

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

  .feature-wide {
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .8fr);
  }

  .final-cta-inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }
}

@media (min-width: 64rem) {
  .hero-grid {
    grid-template-columns: minmax(0, .9fr) minmax(29rem, 1.1fr);
    gap: clamp(2rem, 4vw, 5rem);
  }

  .hero-copy {
    padding-block-end: 1rem;
  }

  .feature-layout {
    grid-template-columns: minmax(0, 1.32fr) minmax(20rem, .68fr);
  }

  .feature-lead {
    grid-column: 1;
    grid-row: span 1;
  }

  .feature-stack {
    grid-column: 2;
    grid-template-columns: 1fr;
  }

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

  .how-layout,
  .faq-layout {
    grid-template-columns: minmax(18rem, .75fr) minmax(28rem, 1.25fr);
  }

  .how-heading,
  .faq-heading {
    position: sticky;
    inset-block-start: 7rem;
    align-self: start;
  }
}

@media (min-width: 80rem) {
  .feature-layout {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .feature-lead {
    grid-column: 1 / span 8;
  }

  .feature-stack {
    grid-column: 9 / -1;
  }

  .feature-wide {
    grid-column: 1 / span 7;
  }

  .feature-split:not(.feature-private) {
    grid-column: 8 / span 2;
  }

  .feature-private {
    grid-column: 10 / -1;
  }
}

@media (max-width: 47.99rem) {
  .nav-links {
    display: none;
  }

  .brand-full {
    display: none;
  }

  .brand-short {
    display: inline;
  }

  .hero {
    min-block-size: 0;
    padding-block-start: 8rem;
  }

  .hero::before {
    inline-size: 30rem;
    block-size: 30rem;
  }

  .hero-grid {
    gap: 2rem;
  }

  .hero-visual {
    inline-size: calc(100% + .5rem);
    margin-inline: -.25rem;
    padding-block-start: 4rem;
  }

  .chip-one {
    inset-inline-start: 1%;
  }

  .chip-two {
    inset-inline-end: 0;
  }

  .chip-three {
    inset-inline-start: 8%;
  }

  .rank-chip {
    font-size: .68rem;
  }

  .orbit {
    inset-inline: -.25rem;
  }

  .orbit-two {
    inset-inline: -1rem;
  }

  .signal-bar {
    display: block;
    overflow-x: auto;
  }

  .signal-bar p {
    margin-block-end: .75rem;
  }

  .signal-flow {
    justify-content: flex-start;
  }

  .section-intro-row {
    display: block;
  }

  .decision-model {
    overflow-x: auto;
    scrollbar-color: var(--anchor) transparent;
    scrollbar-width: thin;
  }

  .model-title {
    position: sticky;
    inset-inline-start: 0;
    inline-size: calc(100vw - 2rem);
  }

  .model-equation {
    min-inline-size: 46rem;
  }

  .screen-slide {
    flex-basis: 89vw;
  }

  .scroll-cue {
    text-align: start;
  }

  .footer-inner {
    padding-block: 1.5rem;
    flex-wrap: wrap;
  }

  .footer-brand {
    inline-size: 100%;
  }
}

@media (max-width: 25rem) {
  .nav-shell {
    inline-size: calc(100% - 1.25rem);
  }

  .brand img {
    inline-size: 2.2rem;
    block-size: 2.2rem;
  }

  .nav-cta {
    padding-inline: .9rem;
  }

  .hero {
    padding-inline: .75rem;
  }

  .proof-points {
    display: grid;
  }

  .feature-compact,
  .feature-wide-copy {
    grid-template-columns: 1fr;
  }

  .feature-compact .icon-shell,
  .feature-wide-copy .icon-shell {
    margin-block-end: .25rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #090d1c;
    --surface: #11172a;
    --surface-strong: #182038;
    --text: #f4f6ff;
    --muted: #a7b0c6;
    --line: #2b344d;
    --anchor: #75aaff;
    --anchor-bright: #4c8fff;
    --accent: #9d72ff;
    --shadow: 0 28px 80px rgba(0, 0, 0, .36);
  }

  .nav-cta,
  .step-number,
  .icon-shell {
    background: #f4f6ff;
    color: #11172a;
  }

  .feature-lead,
  .screenshots-section,
  .final-cta,
  .error-page {
    background: #050817;
  }

  .feature-lead {
    border-color: #202945;
  }

  .feature-lead .icon-shell {
    background: rgba(36, 120, 255, .15);
    color: #85b5ff;
  }

  .store-badge {
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .13);
  }

  .model-equation strong {
    background: #f4f6ff;
    color: #11172a;
  }
}

@media (prefers-contrast: more) {
  :root {
    --muted: var(--text);
    --line: var(--text);
  }

  .feature,
  .faq-list,
  .site-footer {
    border-width: 2px;
  }
}

@media (prefers-contrast: forced) {
  :root {
    --paper: Canvas;
    --surface: Canvas;
    --text: CanvasText;
    --muted: CanvasText;
    --line: CanvasText;
    --anchor: LinkText;
    --anchor-bright: Highlight;
  }

  .rank-orbit,
  .cta-orbit {
    display: none;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    transition: opacity .38s ease-out, transform .38s ease-out;
  }

  .hero-visual.is-visible .mac-frame {
    animation: device-float 6s ease-in-out 1s infinite;
  }

  .hero-visual.is-visible .chip-one {
    animation: chip-drift 5.2s ease-in-out .4s infinite;
  }

  .hero-visual.is-visible .chip-two {
    animation: chip-drift 6.1s ease-in-out 1.2s infinite reverse;
  }

  .hero-visual.is-visible .chip-three {
    animation: chip-drift 5.7s ease-in-out .7s infinite;
  }

  @keyframes device-float {
    0%, 100% { transform: perspective(75rem) rotateX(1deg) rotateY(-3deg) rotateZ(1deg) translateY(0); }
    50% { transform: perspective(75rem) rotateX(1deg) rotateY(-3deg) rotateZ(1deg) translateY(-8px); }
  }

  @keyframes chip-drift {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-7px); }
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

: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}}