:root {
  color-scheme: dark;
  --black: #090b0b;
  --black-raised: #121514;
  --black-soft: #1a1e1c;
  --paper: #f3f5f1;
  --paper-strong: #ffffff;
  --ink: #111512;
  --ink-soft: #555e58;
  --white: #f8faf7;
  --white-muted: #b9c0ba;
  --green: #57dc91;
  --green-strong: #137847;
  --violet: #ad8cff;
  --cyan: #67cbe3;
  --brand: var(--cyan);
  --brand-strong: #00697b;
  --brand-hover: #91def0;
  --yellow: #ffd166;
  --red: #ff7b72;
  --line-dark: rgba(248, 250, 247, 0.16);
  --line-dark-strong: rgba(248, 250, 247, 0.34);
  --line-light: rgba(17, 21, 18, 0.16);
  --line-light-strong: rgba(17, 21, 18, 0.34);
  --content: 1280px;
  --header-height: 72px;
  --radius: 6px;
  --shadow: 0 28px 72px rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 18px 46px rgba(0, 0, 0, 0.2);
  --shadow-light: 0 24px 58px rgba(17, 21, 18, 0.16);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--black);
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--white);
  background: var(--black);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
  font-feature-settings: "kern" 1, "liga" 1, "tnum" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  color: var(--ink);
  background: var(--brand);
}

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

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

h1,
h2,
h3 {
  margin-bottom: 0;
  font-weight: 760;
  letter-spacing: 0;
  text-wrap: balance;
}

h2 {
  font-size: 54px;
  line-height: 1.08;
}

h3 {
  font-size: 23px;
  line-height: 1.24;
}

p {
  font-size: 17px;
  text-wrap: pretty;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--paper-strong);
  border-radius: var(--radius);
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

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

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

.content-width {
  width: min(var(--content), calc(100% - max(40px, 5vw)));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: 132px 0;
  scroll-margin-top: var(--header-height);
}

.section-heading {
  width: min(820px, 100%);
  margin-bottom: 58px;
}

.section-heading h2 {
  margin-bottom: 20px;
  max-width: 940px;
}

.section-heading > p:last-child,
.section-heading > div > p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--white-muted);
  font-size: 18px;
}

.split-heading {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 46px;
  width: 100%;
}

.section-label,
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-label::after {
  content: "";
  width: 42px;
  height: 1px;
  background: currentColor;
  opacity: 0.52;
}

.eyebrow > span {
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 6px rgba(103, 203, 227, 0.18);
}

.theme-light {
  color: var(--ink);
  background: var(--paper);
}

.theme-light .section-label {
  color: var(--brand-strong);
}

.theme-light .section-heading > p:last-child,
.theme-light .section-heading > div > p:last-child {
  color: var(--ink-soft);
}

.action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 19px;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 780;
  line-height: 1.2;
  transition:
    transform 180ms var(--ease),
    box-shadow 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.action-primary {
  color: #07110b;
  border-color: var(--brand);
  background: var(--brand);
  box-shadow: 0 10px 28px rgba(103, 203, 227, 0.2);
}

.action-secondary {
  color: var(--white);
  background: rgba(9, 11, 11, 0.44);
}

.action:hover {
  transform: translateY(-2px);
}

.action:active {
  transform: translateY(0);
}

.action-primary:hover {
  border-color: var(--brand-hover);
  background: var(--brand-hover);
  box-shadow: 0 14px 34px rgba(103, 203, 227, 0.28);
}

.action-secondary:hover {
  border-color: var(--white);
  background: rgba(9, 11, 11, 0.72);
}

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  min-height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition:
    background-color 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    backdrop-filter 220ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line-dark);
  background: rgba(9, 11, 11, 0.9);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(20px) saturate(1.08);
}

.nav-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 38px;
  width: min(var(--content), calc(100% - max(28px, 4vw)));
  min-height: var(--header-height);
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-height: 44px;
  min-width: 0;
}

.brand-symbol {
  position: relative;
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  place-items: center;
  border: 1px solid rgba(248, 250, 247, 0.58);
  border-radius: 4px;
  background: rgba(9, 11, 11, 0.22);
  box-shadow: inset 0 0 0 1px rgba(9, 11, 11, 0.16);
  transition:
    border-color 180ms ease,
    background-color 180ms ease;
}

.brand:hover .brand-symbol {
  border-color: var(--brand);
  background: rgba(103, 203, 227, 0.1);
}

.brand-symbol::before,
.brand-symbol::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
}

.brand-symbol::before {
  top: 6px;
  left: 6px;
  border-top: 2px solid var(--brand);
  border-left: 2px solid var(--brand);
}

.brand-symbol::after {
  right: 6px;
  bottom: 6px;
  border-right: 2px solid var(--violet);
  border-bottom: 2px solid var(--violet);
}

.brand-symbol > span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--white);
}

.brand-copy {
  display: flex;
  align-items: baseline;
  gap: 7px;
  white-space: nowrap;
}

.brand-copy strong {
  font-size: 16px;
}

.brand-copy small {
  color: var(--white-muted);
  font-size: 12px;
  font-weight: 700;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
}

.primary-nav a {
  position: relative;
  padding: 24px 0 22px;
  color: rgba(248, 250, 247, 0.72);
  font-size: 14px;
  font-weight: 700;
  transition: color 160ms ease;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 17px;
  left: 0;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms var(--ease);
}

.primary-nav a:hover,
.primary-nav a.is-active,
.primary-nav a[aria-current="location"] {
  color: var(--white);
}

.primary-nav a.is-active::after,
.primary-nav a[aria-current="location"]::after {
  transform: scaleX(1);
}

.header-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid rgba(103, 203, 227, 0.64);
  border-radius: var(--radius);
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease;
}

.header-action:hover {
  color: var(--ink);
  background: var(--brand);
}

.scroll-progress {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--brand);
  transform: scaleX(var(--page-progress, 0));
  transform-origin: left center;
}

/* Hero */

.hero {
  position: relative;
  height: min(900px, 90svh);
  min-height: 700px;
  overflow: hidden;
  color: var(--white);
  background: var(--black);
  border-bottom: 1px solid var(--line-dark);
}

.hero-media,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
  object-position: 50% 32%;
  filter: saturate(0.86) contrast(1.06) brightness(0.9);
  transform: scale(1.015);
  transition:
    opacity 720ms ease,
    transform 1100ms var(--ease),
    filter 720ms ease;
}

.hero-media-before {
  opacity: 1;
}

.hero-media-after {
  opacity: 0;
}

.hero-scrim {
  background: rgba(4, 6, 5, 0.57);
  box-shadow:
    inset 0 110px 100px rgba(4, 6, 5, 0.22),
    inset 0 -150px 120px rgba(4, 6, 5, 0.32);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  width: min(var(--content), calc(100% - max(40px, 5vw)));
  height: 100%;
  margin-inline: auto;
  padding-top: var(--header-height);
}

.hero-copy {
  position: relative;
  z-index: 4;
  width: min(610px, 50%);
  text-shadow: 0 2px 22px rgba(0, 0, 0, 0.34);
}

.hero h1 {
  margin-bottom: 20px;
  color: var(--white);
  font-size: 92px;
  line-height: 0.94;
}

.hero h1 span {
  display: block;
  color: var(--brand);
  font-weight: 650;
}

.hero-claim {
  max-width: 590px;
  margin-bottom: 18px;
  color: var(--white);
  font-size: 27px;
  font-weight: 720;
  line-height: 1.32;
}

.hero-mobile-prerequisite {
  display: none;
}

.hero-lede {
  max-width: 580px;
  margin-bottom: 28px;
  color: rgba(248, 250, 247, 0.82);
  font-size: 18px;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.hero-context {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  color: rgba(248, 250, 247, 0.58);
  font-size: 13px;
}

.hero-context span {
  position: relative;
  padding-left: 13px;
}

.hero-context span::before {
  content: "";
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--yellow);
}

.hero-hud {
  position: absolute;
  inset: var(--header-height) 0 0;
  z-index: 3;
  pointer-events: none;
}

.hero-reference {
  position: absolute;
  top: 10%;
  right: 1%;
  width: 140px;
  overflow: hidden;
  border: 1px solid rgba(248, 250, 247, 0.56);
  border-radius: var(--radius);
  background: rgba(9, 11, 11, 0.9);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px) saturate(1.06);
  transition:
    transform 560ms var(--ease),
    opacity 320ms ease;
}

.hero-reference img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.hero-reference span {
  display: block;
  padding: 7px 9px;
  color: var(--white);
  font-size: 12px;
  font-weight: 760;
  text-align: center;
}

.hero-target {
  position: absolute;
  top: 31%;
  right: 12%;
  width: 280px;
  height: 330px;
  transition:
    width 620ms var(--ease),
    height 620ms var(--ease),
    transform 620ms var(--ease),
    opacity 300ms ease;
}

.hero-target > i,
.stage-frame > i {
  position: absolute;
  width: 34px;
  height: 34px;
  border-color: var(--violet);
  border-style: solid;
  border-width: 0;
  filter:
    drop-shadow(0 2px 3px rgba(0, 0, 0, 0.54))
    drop-shadow(0 0 8px rgba(173, 140, 255, 0.18));
  transition: border-color 300ms ease;
}

.hero-target > i:nth-child(1),
.stage-frame > i:nth-child(1) {
  top: 0;
  left: 0;
  border-top-width: 4px;
  border-left-width: 4px;
  border-top-left-radius: 8px;
}

.hero-target > i:nth-child(2),
.stage-frame > i:nth-child(2) {
  top: 0;
  right: 0;
  border-top-width: 4px;
  border-right-width: 4px;
  border-top-right-radius: 8px;
}

.hero-target > i:nth-child(3),
.stage-frame > i:nth-child(3) {
  right: 0;
  bottom: 0;
  border-right-width: 4px;
  border-bottom-width: 4px;
  border-bottom-right-radius: 8px;
}

.hero-target > i:nth-child(4),
.stage-frame > i:nth-child(4) {
  bottom: 0;
  left: 0;
  border-bottom-width: 4px;
  border-left-width: 4px;
  border-bottom-left-radius: 8px;
}

.hero-target-point {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 9px;
  border: 2px solid var(--white);
  border-radius: 50%;
  background: var(--violet);
  transform: translate(-50%, -50%);
}

.hero-direction {
  position: absolute;
  top: 46%;
  right: 38%;
  width: 96px;
  height: 30px;
  opacity: 0;
  transform: translateX(-20px) perspective(160px) rotateY(-24deg);
  transition:
    opacity 260ms ease,
    transform 480ms var(--ease);
}

.hero-direction > span,
.stage-move > span {
  position: absolute;
  top: 13px;
  left: 0;
  width: 76px;
  height: 5px;
  border-radius: 999px;
  background: var(--yellow);
  box-shadow: 0 0 18px rgba(255, 209, 102, 0.54);
}

.hero-direction > i,
.stage-move > i {
  position: absolute;
  top: 4px;
  right: 0;
  width: 0;
  height: 0;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  border-left: 17px solid var(--yellow);
}

.hero-guidance {
  position: absolute;
  right: 3%;
  bottom: 12%;
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 13px;
  width: 340px;
  min-height: 108px;
  padding: 17px 18px;
  border: 1px solid var(--line-dark-strong);
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius);
  background: rgba(9, 11, 11, 0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px) saturate(1.12);
  transition:
    border-color 300ms ease,
    transform 480ms var(--ease);
}

.status-indicator {
  width: 10px;
  height: 10px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(103, 203, 227, 0.15);
  transition:
    background-color 300ms ease,
    box-shadow 300ms ease;
}

.hero-guidance small {
  display: block;
  margin-bottom: 3px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.hero-guidance-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 14px;
}

.hero-guidance-meta > span {
  color: rgba(248, 250, 247, 0.58);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.hero-guidance strong {
  display: block;
  color: var(--white);
  font-size: 18px;
  line-height: 1.35;
}

.hero-guidance p {
  margin: 5px 0 0;
  color: var(--white-muted);
  font-size: 13px;
  line-height: 1.45;
}

.hero-sequence {
  position: absolute;
  right: 3%;
  bottom: 5%;
  display: grid;
  grid-template-columns: repeat(4, minmax(72px, 1fr)) 44px;
  width: min(530px, 48%);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: rgba(9, 11, 11, 0.78);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(16px) saturate(1.08);
  pointer-events: auto;
}

.hero-sequence button {
  min-height: 44px;
  padding: 8px 9px;
  border: 0;
  border-right: 1px solid var(--line-dark);
  color: rgba(248, 250, 247, 0.58);
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  transition:
    color 160ms ease,
    background-color 160ms ease;
}

.hero-sequence button > span:not(.hero-play-icon) {
  margin-right: 5px;
  color: rgba(248, 250, 247, 0.58);
  font-size: 10px;
}

.hero-sequence button:hover {
  color: var(--white);
  background: rgba(248, 250, 247, 0.08);
}

.hero-sequence button.is-active {
  color: var(--white);
  background: rgba(103, 203, 227, 0.18);
  box-shadow: inset 0 -3px 0 var(--brand);
}

.hero-sequence button.is-active > span:not(.hero-play-icon) {
  color: var(--brand);
}

.hero-sequence button:focus-visible,
.mode-switcher button:focus-visible {
  z-index: 2;
  outline: 0;
  box-shadow: inset 0 0 0 3px var(--yellow);
}

.hero-sequence .hero-play {
  position: relative;
  border-right: 0;
}

.hero-play-icon,
.hero-play-icon::after {
  position: absolute;
  top: 13px;
  width: 3px;
  height: 16px;
  border-radius: 2px;
  background: currentColor;
}

.hero-play-icon {
  left: 16px;
}

.hero-play-icon::after {
  content: "";
  top: 0;
  left: 7px;
}

.hero-play.is-paused .hero-play-icon {
  top: 12px;
  left: 16px;
  width: 0;
  height: 0;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 14px solid currentColor;
  border-radius: 0;
  background: transparent;
}

.hero-play.is-paused .hero-play-icon::after {
  display: none;
}

.hero-next {
  position: absolute;
  bottom: 28px;
  left: max(28px, calc((100% - var(--content)) / 2));
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(248, 250, 247, 0.64);
  font-size: 13px;
  font-weight: 700;
  transition: color 180ms ease;
}

.hero-next:hover {
  color: var(--white);
}

.hero-next i {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(248, 250, 247, 0.44);
  border-radius: 50%;
  transition:
    border-color 180ms ease,
    transform 220ms var(--ease);
}

.hero-next:hover i {
  border-color: var(--brand);
  transform: translateY(3px);
}

.hero-next i::before {
  content: "";
  display: block;
  width: 7px;
  height: 7px;
  margin: 8px auto 0;
  border-right: 2px solid var(--white);
  border-bottom: 2px solid var(--white);
  transform: rotate(45deg);
}

.hero[data-hero-state="move"] .hero-direction,
.hero[data-hero-state="align"] .hero-direction {
  opacity: 1;
  transform: translateX(0) perspective(160px) rotateY(-24deg);
}

.hero[data-hero-state="move"] .hero-media-before {
  transform: translateX(-1.2%) scale(1.03);
}

.hero[data-hero-state="align"] .hero-media-before {
  opacity: 0;
}

.hero[data-hero-state="align"] .hero-media-after {
  opacity: 1;
  filter: saturate(0.92) contrast(1.06) brightness(0.93);
  transform: translateX(-0.4%) scale(1.022);
}

.hero[data-hero-state="ready"] .hero-media-before {
  opacity: 0;
}

.hero[data-hero-state="ready"] .hero-media-after {
  opacity: 1;
  filter: saturate(0.98) contrast(1.05) brightness(0.98);
  transform: scale(1.015);
}

.hero[data-hero-state="move"] .hero-target {
  transform: translateX(34px) scale(0.92);
}

.hero[data-hero-state="align"] .hero-target {
  transform: translateX(10px) scale(0.98);
}

.hero[data-hero-state="align"] .hero-direction {
  opacity: 0.74;
  transform: translateX(30px) perspective(160px) rotateY(-24deg) scale(0.7);
}

.hero[data-hero-state="move"] .hero-guidance {
  border-left-color: var(--yellow);
}

.hero[data-hero-state="move"] .status-indicator {
  background: var(--yellow);
  box-shadow: 0 0 0 6px rgba(255, 209, 102, 0.16);
}

.hero[data-hero-state="move"] .hero-guidance small {
  color: var(--yellow);
}

.hero[data-hero-state="align"] .hero-guidance {
  border-left-color: var(--violet);
}

.hero[data-hero-state="align"] .status-indicator {
  background: var(--violet);
  box-shadow: 0 0 0 6px rgba(173, 140, 255, 0.16);
}

.hero[data-hero-state="align"] .hero-guidance small {
  color: var(--violet);
}

.hero[data-hero-state="ready"] .hero-target > i {
  border-color: var(--green);
}

.hero[data-hero-state="ready"] .hero-target-point {
  background: var(--green);
}

.hero[data-hero-state="ready"] .hero-guidance {
  border-left-color: var(--green);
}

.hero[data-hero-state="ready"] .status-indicator {
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(87, 220, 145, 0.16);
}

.hero[data-hero-state="ready"] .hero-guidance small {
  color: var(--green);
}

.hero[data-hero-state="analyzing"] .hero-target {
  opacity: 0.52;
  transform: scale(1.06);
}

/* Proof band */

.proof-band {
  position: relative;
  z-index: 5;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  background: var(--black-raised);
}

.proof-band dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
}

.proof-band dl > div {
  padding: 27px 30px;
  border-left: 1px solid var(--line-dark);
  transition: background-color 180ms ease;
}

.proof-band dl > div:hover {
  background: rgba(248, 250, 247, 0.035);
}

.proof-band dl > div:last-child {
  border-right: 1px solid var(--line-dark);
}

.proof-band dt {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 4px;
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
}

.proof-band dt span {
  display: inline-grid;
  width: 27px;
  height: 27px;
  margin-right: 0;
  place-items: center;
  border: 1px solid rgba(103, 203, 227, 0.46);
  border-radius: 50%;
  color: var(--brand);
  font-size: 10px;
}

.proof-band dd {
  margin: 3px 0 0 38px;
  color: var(--white-muted);
  font-size: 13px;
}

/* Problem */

.problem-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  align-items: stretch;
  gap: 64px;
}

.problem-visual {
  position: relative;
  min-height: 620px;
  margin-bottom: 0;
  overflow: hidden;
  border: 1px solid rgba(17, 21, 18, 0.22);
  border-radius: var(--radius);
  background: var(--black-soft);
  box-shadow: var(--shadow-light);
}

.problem-visual > img {
  width: 100%;
  height: 100%;
  min-height: 620px;
  object-fit: contain;
  filter: saturate(0.9) contrast(1.04);
}

.problem-reference {
  position: absolute;
  top: 28px;
  right: 28px;
  width: 180px;
  overflow: hidden;
  border: 4px solid var(--paper-strong);
  border-radius: var(--radius);
  background: var(--paper-strong);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.3);
}

.problem-reference img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.problem-reference span {
  display: block;
  padding: 7px 8px 5px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.problem-visual figcaption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  padding: 12px 14px;
  border-radius: var(--radius);
  color: var(--white);
  background: rgba(9, 11, 11, 0.8);
  backdrop-filter: blur(14px);
  font-size: 13px;
}

.axis-list {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-top: 1px solid var(--line-light-strong);
}

.axis-list article {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line-light-strong);
  transition: background-color 180ms ease;
}

.axis-list article:hover {
  background: rgba(17, 21, 18, 0.025);
}

.axis-list article > div {
  transition: transform 220ms var(--ease);
}

.axis-list article:hover > div {
  transform: translateX(6px);
}

.axis-list article > span {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(0, 105, 123, 0.34);
  border-radius: 50%;
  color: var(--brand-strong);
  font-size: 12px;
  font-weight: 850;
}

.axis-list h3 {
  margin-bottom: 8px;
  color: var(--ink);
}

.axis-list p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

/* Workflow */

.experience {
  background: var(--black-raised);
}

.workflow {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 44px;
  align-items: stretch;
}

.workflow-stage {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: var(--black);
  box-shadow: var(--shadow);
}

.workflow-stage::after {
  content: "";
  position: absolute;
  inset: 8px;
  z-index: 5;
  border: 1px solid rgba(248, 250, 247, 0.12);
  border-radius: 4px;
  pointer-events: none;
}

.workflow-background,
.workflow-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.workflow-background {
  object-fit: contain;
  object-position: center;
  filter: saturate(0.88) contrast(1.04);
  transform: scale(1.01);
  transition:
    transform 720ms var(--ease),
    filter 360ms ease;
}

.workflow[data-workflow-state="live"] .workflow-background {
  transform: translateX(-0.7%) scale(1.025);
}

.workflow[data-workflow-state="guide"] .workflow-background {
  filter: saturate(0.94) contrast(1.05);
  transform: translateX(-1.4%) scale(1.035);
}

.workflow[data-workflow-state="result"] .workflow-background {
  transform: scale(1.015);
}

.workflow-shade {
  background: rgba(4, 6, 5, 0.18);
}

.workflow-view {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity 320ms ease,
    transform 520ms var(--ease),
    visibility 0s linear 520ms;
}

.workflow-view.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
}

.workflow-caption {
  position: absolute;
  top: 24px;
  left: 24px;
  max-width: 360px;
  padding: 15px 17px;
  border: 1px solid var(--line-dark-strong);
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius);
  color: var(--white);
  background: rgba(9, 11, 11, 0.82);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px) saturate(1.08);
}

.workflow-caption small {
  display: block;
  margin-bottom: 4px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.workflow-caption strong {
  font-size: 17px;
}

.workflow-caption.is-guiding {
  top: auto;
  bottom: 26px;
  border-left-color: var(--yellow);
}

.workflow-caption.is-guiding small {
  color: var(--yellow);
}

.workflow-caption.is-ready {
  top: auto;
  bottom: 24px;
  border-left-color: var(--green);
}

.workflow-caption.is-ready small {
  color: var(--green);
}

.photo-belt {
  position: absolute;
  right: 26px;
  bottom: 28px;
  left: 26px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 210px;
  padding: 20px 26px;
  overflow: hidden;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius);
  background: rgba(9, 11, 11, 0.76);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px) saturate(1.08);
}

.photo-belt img {
  width: 148px;
  height: 174px;
  flex: 0 0 148px;
  margin-left: -18px;
  border: 2px solid rgba(248, 250, 247, 0.36);
  border-radius: var(--radius);
  object-fit: cover;
  filter: saturate(0.72) brightness(0.82);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.34);
  transform: translateY(16px) scale(0.86);
  transition:
    filter 220ms ease,
    transform 300ms var(--ease),
    border-color 220ms ease;
}

.photo-belt img:first-child {
  margin-left: 0;
}

.photo-belt img:nth-child(2),
.photo-belt img:nth-child(4) {
  transform: translateY(7px) scale(0.94);
}

.photo-belt img.is-selected {
  position: relative;
  z-index: 2;
  margin-inline: -6px 4px;
  border-color: var(--brand);
  filter: saturate(1) brightness(1);
  box-shadow:
    0 16px 32px rgba(0, 0, 0, 0.42),
    0 0 0 4px rgba(103, 203, 227, 0.16);
  transform: translateY(-5px) scale(1.12);
}

.stage-reference {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 138px;
  overflow: hidden;
  border: 1px solid rgba(248, 250, 247, 0.7);
  border-radius: var(--radius);
  background: rgba(9, 11, 11, 0.88);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.stage-reference img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.stage-reference span {
  display: block;
  padding: 7px 9px;
  font-size: 11px;
  font-weight: 800;
  text-align: center;
}

.stage-frame {
  position: absolute;
  top: 24%;
  left: 43%;
  width: 230px;
  height: 290px;
  transform: translateX(-50%);
  transition: transform 480ms var(--ease);
}

.stage-frame > i {
  border-color: var(--violet);
}

.frame-current {
  top: 28%;
  left: 52%;
  width: 214px;
  height: 276px;
}

.frame-current > i {
  border-color: var(--white);
}

.frame-target.is-near {
  left: 48%;
}

.stage-move {
  position: absolute;
  top: 49%;
  left: 24%;
  width: 120px;
  height: 30px;
  transform: perspective(180px) rotateY(-22deg);
}

.stage-move > span {
  width: 94px;
}

.workflow-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  height: 100%;
  padding: 18px;
  background: var(--black);
}

.workflow-result figure {
  position: relative;
  margin-bottom: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line-dark);
}

.workflow-result img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.workflow-result figcaption {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 7px 10px;
  border-radius: 4px;
  color: var(--white);
  background: rgba(9, 11, 11, 0.78);
  font-size: 12px;
  font-weight: 800;
}

.workflow-steps {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-top: 1px solid var(--line-dark-strong);
}

.workflow-steps button {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 3px 14px;
  width: 100%;
  padding: 24px 18px;
  border: 0;
  border-bottom: 1px solid var(--line-dark-strong);
  color: var(--white-muted);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition:
    color 180ms ease,
    background-color 180ms ease,
    padding-left 240ms var(--ease);
}

.workflow-steps button:focus-visible {
  z-index: 2;
  outline: 0;
  box-shadow: inset 0 0 0 3px var(--yellow);
}

.workflow-steps button > span {
  grid-row: 1 / span 2;
  color: rgba(248, 250, 247, 0.64);
  font-size: 12px;
  font-weight: 850;
  transition: color 180ms ease;
}

.workflow-steps button strong {
  color: var(--white);
  font-size: 17px;
}

.workflow-steps button small {
  color: var(--white-muted);
  font-size: 13px;
  line-height: 1.5;
}

.workflow-steps button:hover {
  background: rgba(248, 250, 247, 0.05);
}

.workflow-steps button.is-active {
  padding-left: 24px;
  color: var(--brand);
  background: rgba(103, 203, 227, 0.085);
  box-shadow: inset 4px 0 0 var(--brand);
}

.workflow-steps button.is-active > span {
  color: var(--brand);
}

/* Guidance */

.guidance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-light-strong);
  border-bottom: 1px solid var(--line-light-strong);
}

.guidance-grid article {
  min-width: 0;
  padding: 38px 38px 40px 0;
  transition: background-color 180ms ease;
}

.guidance-grid article + article {
  padding-left: 38px;
  border-left: 1px solid var(--line-light-strong);
}

.guidance-grid h3 {
  margin-bottom: 11px;
}

.guidance-grid article > p:not(.guidance-index) {
  min-height: 82px;
  margin-bottom: 18px;
  color: var(--ink-soft);
  font-size: 15px;
}

.guidance-grid article > strong {
  color: var(--brand-strong);
  font-size: 14px;
}

.guidance-index {
  margin-bottom: 8px;
  color: var(--brand-strong);
  font-size: 12px;
  font-weight: 850;
}

.guidance-glyph {
  position: relative;
  width: 74px;
  height: 74px;
  margin-bottom: 28px;
  border: 1px solid var(--line-light-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.34);
  box-shadow:
    inset 0 0 0 7px rgba(17, 21, 18, 0.025),
    0 12px 24px rgba(17, 21, 18, 0.06);
  transition:
    border-color 180ms ease,
    transform 260ms var(--ease);
}

.guidance-grid article:hover .guidance-glyph {
  border-color: rgba(0, 105, 123, 0.52);
  transform: translateY(-3px);
}

.glyph-position::before,
.glyph-position::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 999px;
  background: var(--brand-strong);
  transform: translate(-50%, -50%);
}

.glyph-position::before {
  width: 38px;
  height: 3px;
}

.glyph-position::after {
  width: 3px;
  height: 38px;
}

.glyph-position span {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 9px;
  height: 9px;
  border: 2px solid var(--paper);
  border-radius: 50%;
  background: var(--violet);
  transform: translate(-50%, -50%);
}

.glyph-direction span {
  position: absolute;
  inset: 17px;
  border: 3px solid var(--violet);
  border-right-color: transparent;
  border-radius: 50%;
  transform: rotate(-32deg);
}

.glyph-direction i {
  position: absolute;
  top: 13px;
  right: 17px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 9px solid var(--violet);
  transform: rotate(-24deg);
}

.glyph-range span,
.glyph-range i {
  position: absolute;
  top: 20px;
  width: 14px;
  height: 34px;
  border-top: 3px solid var(--cyan);
  border-bottom: 3px solid var(--cyan);
}

.glyph-range span {
  left: 18px;
  border-left: 3px solid var(--cyan);
}

.glyph-range i {
  right: 18px;
  border-right: 3px solid var(--cyan);
}

.state-rail {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin-top: 66px;
  border-top: 1px solid var(--line-light-strong);
  border-bottom: 1px solid var(--line-light-strong);
}

.state-rail > div {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 2px 10px;
  min-width: 0;
  padding: 22px 20px;
  transition: background-color 180ms ease;
}

.state-rail > div:hover {
  background: rgba(17, 21, 18, 0.025);
}

.state-rail > div + div {
  border-left: 1px solid var(--line-light);
}

.state-rail strong {
  color: var(--ink);
  font-size: 13px;
}

.state-rail small {
  grid-column: 2;
  color: var(--ink-soft);
  font-size: 11px;
}

.state-dot {
  width: 9px;
  height: 9px;
  margin-top: 5px;
  border-radius: 50%;
  background: #88918c;
  box-shadow: 0 0 0 4px rgba(136, 145, 140, 0.12);
}

.state-dot.analysis {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(103, 203, 227, 0.16);
}

.state-dot.guiding {
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(173, 140, 255, 0.15);
}

.state-dot.low {
  background: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255, 209, 102, 0.15);
}

.state-dot.ready {
  background: var(--green-strong);
  box-shadow: 0 0 0 4px rgba(19, 120, 71, 0.14);
}

/* Modes */

.modes {
  background: #0e1110;
}

.mode-switcher {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  width: min(560px, 100%);
  margin-bottom: 24px;
  overflow: hidden;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius);
  background: var(--black-raised);
  box-shadow: var(--shadow-soft);
}

.mode-switcher button {
  position: relative;
  min-height: 48px;
  padding: 10px 16px;
  border: 0;
  border-right: 1px solid var(--line-dark-strong);
  color: var(--white-muted);
  background: var(--black-raised);
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  transition:
    color 160ms ease,
    background-color 160ms ease;
}

.mode-switcher button::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 0;
  left: 12px;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: var(--brand);
  opacity: 0;
  transform: scaleX(0.55);
  transition:
    opacity 180ms ease,
    transform 220ms var(--ease);
}

.mode-switcher button:last-child {
  border-right: 0;
}

.mode-switcher button.is-active {
  color: var(--white);
  background: rgba(103, 203, 227, 0.12);
}

.mode-switcher button.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.mode-panel {
  display: none;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.45fr);
  min-height: 570px;
  overflow: hidden;
  border-top: 1px solid var(--line-dark-strong);
  border-bottom: 1px solid var(--line-dark-strong);
  background: var(--black-soft);
}

.mode-panel.is-active {
  display: grid;
  animation: mode-panel-in 440ms var(--ease) both;
}

@keyframes mode-panel-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mode-panel > img,
.mode-visual {
  width: 100%;
  height: 100%;
  min-height: 570px;
}

.mode-panel > img {
  object-fit: cover;
  filter: saturate(0.88) contrast(1.03);
  transition:
    filter 360ms ease,
    transform 720ms var(--ease);
}

.mode-panel.is-active:hover > img {
  filter: saturate(0.96) contrast(1.04);
  transform: scale(1.012);
}

.mode-visual {
  position: relative;
  overflow: hidden;
  background-color: #17343b;
}

.mode-visual-portrait::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("assets/android-onboarding/onboarding_recent_photo_01.webp");
  background-position: center 44%;
  background-size: cover;
  background-repeat: no-repeat;
  filter: saturate(0.72) brightness(0.66);
  transform: scale(1.025);
}

.mode-visual-label {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  padding: 7px 10px;
  border: 1px solid rgba(248, 250, 247, 0.42);
  border-radius: 4px;
  color: var(--white);
  background: rgba(9, 11, 11, 0.76);
  font-size: 11px;
  font-weight: 800;
}

.portrait-target {
  position: absolute;
  top: 18%;
  left: 12%;
  z-index: 2;
  width: 34%;
  height: 68%;
}

.portrait-subject {
  position: absolute;
  bottom: -3%;
  left: 23%;
  z-index: 1;
  width: 22%;
  height: 56%;
  border: 1px solid rgba(248, 250, 247, 0.22);
  border-radius: 44% 44% 8% 8% / 24% 24% 6% 6%;
  background: rgba(9, 11, 11, 0.9);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.34);
}

.portrait-subject::before {
  content: "";
  position: absolute;
  top: -24%;
  left: 25%;
  width: 50%;
  aspect-ratio: 1;
  border: 1px solid rgba(248, 250, 247, 0.22);
  border-radius: 50%;
  background: rgba(9, 11, 11, 0.94);
}

.portrait-target i {
  position: absolute;
  width: 30px;
  height: 30px;
  border-color: var(--violet);
  border-style: solid;
  border-width: 0;
  filter: drop-shadow(0 3px 7px rgba(0, 0, 0, 0.42));
}

.portrait-target i:nth-child(1) {
  top: 0;
  left: 0;
  border-top-width: 4px;
  border-left-width: 4px;
  border-top-left-radius: 8px;
}

.portrait-target i:nth-child(2) {
  top: 0;
  right: 0;
  border-top-width: 4px;
  border-right-width: 4px;
  border-top-right-radius: 8px;
}

.portrait-target i:nth-child(3) {
  right: 0;
  bottom: 0;
  border-right-width: 4px;
  border-bottom-width: 4px;
  border-bottom-right-radius: 8px;
}

.portrait-target i:nth-child(4) {
  bottom: 0;
  left: 0;
  border-bottom-width: 4px;
  border-left-width: 4px;
  border-bottom-left-radius: 8px;
}

.mode-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 48px;
  color: var(--white);
  background: var(--black-soft);
}

.mode-copy::before {
  content: "";
  position: absolute;
  top: 48px;
  bottom: 48px;
  left: 0;
  width: 3px;
  border-radius: 0 999px 999px 0;
  background: var(--brand);
  opacity: 0.72;
}

.mode-copy > p:first-child {
  margin-bottom: 12px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 850;
}

.mode-copy h3 {
  margin-bottom: 14px;
  font-size: 32px;
}

.mode-copy > p:last-child {
  margin-bottom: 0;
  color: var(--white-muted);
  font-size: 15px;
}

.scenario-line {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 42px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark-strong);
  border-bottom: 1px solid var(--line-dark-strong);
  list-style: none;
}

.scenario-line li {
  min-width: 0;
  padding: 21px 18px;
  color: var(--white);
  font-size: 14px;
  font-weight: 760;
  transition:
    color 180ms ease,
    background-color 180ms ease;
}

.scenario-line li:hover {
  color: var(--brand);
  background: rgba(248, 250, 247, 0.035);
}

.scenario-line li + li {
  border-left: 1px solid var(--line-dark);
}

.scenario-line span {
  display: block;
  margin-bottom: 4px;
  color: var(--violet);
  font-size: 10px;
}

/* Comparison */

.comparison-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.48fr) minmax(0, 1.08fr);
  align-items: center;
  gap: 72px;
}

.comparison-copy h2 {
  margin-bottom: 20px;
}

.comparison-copy > p:not(.section-label) {
  margin-bottom: 34px;
  color: var(--ink-soft);
}

.compare-notes {
  margin-bottom: 0;
  border-top: 1px solid var(--line-light-strong);
}

.compare-notes > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-light-strong);
}

.compare-notes dt {
  font-size: 13px;
  font-weight: 800;
}

.compare-notes dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.comparison-frame {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 360px;
  overflow: hidden;
  border: 1px solid rgba(17, 21, 18, 0.2);
  border-radius: var(--radius);
  background: var(--black-soft);
  box-shadow: var(--shadow-light);
}

.comparison-frame::after {
  content: "";
  position: absolute;
  inset: 8px;
  z-index: 2;
  border: 1px solid rgba(248, 250, 247, 0.14);
  border-radius: 4px;
  pointer-events: none;
}

.comparison-base,
.comparison-overlay,
.comparison-overlay img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.comparison-base,
.comparison-overlay img {
  object-fit: contain;
  object-position: center;
  filter: saturate(0.9) contrast(1.03);
}

.comparison-overlay {
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
}

.comparison-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split);
  z-index: 3;
  width: 3px;
  background: var(--brand);
  box-shadow: 0 0 18px rgba(0, 0, 0, 0.42);
  transform: translateX(-1px);
  pointer-events: none;
}

.comparison-divider i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 46px;
  height: 46px;
  border: 2px solid var(--brand);
  border-radius: 50%;
  background: rgba(9, 11, 11, 0.84);
  box-shadow:
    0 10px 24px rgba(0, 0, 0, 0.34),
    0 0 0 5px rgba(103, 203, 227, 0.14);
  backdrop-filter: blur(10px);
  transform: translate(-50%, -50%);
}

.comparison-divider i::before,
.comparison-divider i::after {
  content: "";
  position: absolute;
  top: 16px;
  width: 9px;
  height: 9px;
  border-bottom: 2px solid var(--white);
}

.comparison-divider i::before {
  left: 9px;
  border-left: 2px solid var(--white);
  transform: rotate(45deg);
}

.comparison-divider i::after {
  right: 9px;
  border-right: 2px solid var(--white);
  transform: rotate(-45deg);
}

.comparison-range {
  position: absolute;
  inset: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  margin: 0;
  appearance: none;
  cursor: ew-resize;
  opacity: 0;
  touch-action: pan-y;
}

.comparison-range::-webkit-slider-thumb {
  width: 48px;
  height: 48px;
  appearance: none;
}

.comparison-range::-moz-range-thumb {
  width: 48px;
  height: 48px;
  border: 0;
}

.comparison-range:focus-visible {
  opacity: 1;
  outline: 3px solid var(--yellow);
  outline-offset: -5px;
}

.comparison-range:focus-visible::-webkit-slider-thumb {
  border: 3px solid var(--yellow);
  border-radius: 50%;
  background: transparent;
}

.compare-label {
  position: absolute;
  top: 15px;
  z-index: 2;
  padding: 7px 10px;
  border-radius: 4px;
  color: var(--white);
  background: rgba(9, 11, 11, 0.74);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(12px);
  font-size: 12px;
  font-weight: 800;
  transition: opacity 160ms ease;
}

.comparison-widget[data-comparison-edge="reference-hidden"] .label-before,
.comparison-widget[data-comparison-edge="result-hidden"] .label-after {
  opacity: 0;
}

.label-before {
  left: 15px;
}

.label-after {
  right: 15px;
}

.comparison-widget > p {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
}

/* Status and trust */

.status {
  background: var(--black);
}

.status-matrix {
  border-top: 1px solid var(--line-dark-strong);
}

.status-matrix > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 23px 0;
  border-bottom: 1px solid var(--line-dark-strong);
  transition: background-color 180ms ease;
}

.status-matrix > div:hover {
  background: rgba(248, 250, 247, 0.035);
}

.status-matrix span {
  color: var(--white);
  font-size: 17px;
  font-weight: 680;
}

.status-matrix strong {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  min-width: 82px;
  font-size: 12px;
  text-align: right;
}

.status-matrix strong::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px rgba(248, 250, 247, 0.1);
}

.status-complete {
  color: var(--green);
}

.status-progress {
  color: var(--cyan);
}

.status-experimental {
  color: var(--yellow);
}

.trust {
  background: var(--black-soft);
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-dark-strong);
  border-bottom: 1px solid var(--line-dark-strong);
}

.boundary-grid article {
  padding: 36px 34px 36px 0;
}

.boundary-grid article + article {
  padding-left: 34px;
  border-left: 1px solid var(--line-dark-strong);
}

.boundary-grid article > span {
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 28px;
  place-items: center;
  border: 1px solid rgba(255, 209, 102, 0.38);
  border-radius: 50%;
  color: var(--yellow);
  font-size: 12px;
  font-weight: 850;
}

.boundary-grid h3 {
  margin-bottom: 11px;
}

.boundary-grid p {
  margin-bottom: 0;
  color: var(--white-muted);
  font-size: 15px;
}

.faq {
  width: min(880px, 100%);
  margin: 80px 0 0 auto;
  border-top: 1px solid var(--line-dark-strong);
}

.faq details {
  border-bottom: 1px solid var(--line-dark-strong);
  transition: background-color 180ms ease;
}

.faq details:hover,
.faq details[open] {
  background: rgba(248, 250, 247, 0.025);
}

.faq summary {
  position: relative;
  padding: 23px 48px 23px 0;
  color: var(--white);
  cursor: pointer;
  font-size: 17px;
  font-weight: 760;
  list-style: none;
  transition: color 180ms ease;
}

.faq summary:hover {
  color: var(--brand);
}

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

.faq summary::before,
.faq summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 6px;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: translateY(-50%);
}

.faq summary::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform 180ms ease;
}

.faq details[open] summary::after {
  transform: translateY(-50%) rotate(0deg);
}

.faq details p {
  max-width: 740px;
  margin-bottom: 24px;
  color: var(--white-muted);
  font-size: 15px;
}

/* Closing */

.closing {
  position: relative;
  display: flex;
  min-height: 600px;
  align-items: center;
  overflow: hidden;
  background: var(--black);
  border-top: 1px solid var(--line-dark);
}

.closing > img,
.closing-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.closing > img {
  object-fit: cover;
  object-position: center;
  filter: saturate(0.78) contrast(1.08) brightness(0.86);
  transform: scale(1.015);
}

.closing-scrim {
  background: rgba(4, 6, 5, 0.64);
  box-shadow:
    inset 0 120px 110px rgba(4, 6, 5, 0.18),
    inset 0 -140px 120px rgba(4, 6, 5, 0.34);
}

.closing-inner {
  position: relative;
  z-index: 2;
  padding: 92px 0;
}

.closing-inner h2 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: 60px;
  text-shadow: 0 4px 26px rgba(0, 0, 0, 0.34);
}

.closing-inner > p:not(.section-label) {
  max-width: 600px;
  margin-bottom: 30px;
  color: rgba(248, 250, 247, 0.76);
  font-size: 18px;
}

.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line-dark);
  background: var(--black);
}

.site-footer .content-width {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 104px;
}

.site-footer span {
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
}

.site-footer p {
  margin-bottom: 0;
  color: rgba(248, 250, 247, 0.48);
  font-size: 12px;
}

.site-footer a {
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  transition: color 160ms ease;
}

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

/* Progressive reveal */

.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 620ms ease,
    transform 720ms var(--ease);
}

.reveal-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.no-js .hero-sequence,
.no-js .workflow-steps,
.no-js .mode-switcher,
.no-js .comparison-range,
.no-js .comparison-divider,
.no-js #compare-help {
  display: none;
}

.no-js .comparison-overlay {
  clip-path: inset(0 50% 0 0);
}

.no-js .workflow {
  grid-template-columns: 1fr;
}

.no-js .workflow-stage {
  display: grid;
  gap: 16px;
  min-height: 0;
  padding: 16px;
  overflow: visible;
  background: transparent;
  box-shadow: none;
}

.no-js .workflow-background,
.no-js .workflow-shade {
  display: none;
}

.no-js .workflow-view {
  position: relative;
  inset: auto;
  display: block;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius);
  background: var(--black) url("assets/android-onboarding/onboarding_alignment_before_01.webp") center / contain no-repeat;
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: none;
  pointer-events: auto;
}

.no-js .workflow-view[data-workflow-view="result"] {
  min-height: 520px;
  background: var(--black);
}

.no-js .mode-stage {
  display: grid;
  gap: 24px;
}

.no-js .mode-panel,
.no-js .mode-panel.is-active {
  display: grid;
}

.no-js-note {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
}

/* Responsive */

@media (max-width: 1180px) {
  .nav-inner {
    gap: 24px;
  }

  .primary-nav {
    gap: 20px;
  }

  .hero h1 {
    font-size: 74px;
  }

  .hero-copy {
    width: min(560px, 52%);
  }

  .hero-target {
    right: 16%;
    width: 240px;
    height: 290px;
  }

  .hero-direction {
    right: 34%;
  }

  .workflow {
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.55fr);
  }

  .workflow-stage {
    min-height: 570px;
  }

  .problem-layout {
    gap: 44px;
  }
}

@media (max-width: 1080px) {
  .workflow {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .workflow-stage {
    min-height: 620px;
  }

  .workflow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  .workflow-steps button {
    grid-template-columns: 1fr;
    padding: 20px 16px;
    border-top: 1px solid var(--line-dark-strong);
    border-right: 1px solid var(--line-dark-strong);
  }

  .workflow-steps button > span {
    grid-row: auto;
    margin-bottom: 8px;
  }

  .workflow-steps button.is-active {
    padding-left: 16px;
    box-shadow: inset 0 4px 0 var(--brand);
  }
}

@media (max-width: 1040px) {
  .problem-layout {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .axis-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .axis-list article {
    grid-template-columns: 34px 1fr;
    padding: 26px 20px 26px 0;
    border-top: 0;
  }

  .axis-list article + article {
    padding-left: 20px;
    border-left: 1px solid var(--line-light-strong);
  }
}

@media (max-width: 980px) {
  h2 {
    font-size: 46px;
  }

  .primary-nav a:nth-child(3),
  .primary-nav a:nth-child(4) {
    display: none;
  }

  .hero {
    height: min(860px, 92svh);
    min-height: 760px;
  }

  .hero-copy {
    width: min(520px, 57%);
  }

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

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

  .hero-reference {
    top: 14%;
    right: 0;
    width: 110px;
  }

  .hero-target {
    top: 35%;
    right: 17%;
    width: 200px;
    height: 250px;
  }

  .hero-direction {
    right: 31%;
  }

  .hero-guidance {
    right: 1%;
    width: 300px;
  }

  .hero-sequence {
    right: 1%;
    width: 470px;
  }

  .comparison-layout {
    grid-template-columns: 1fr;
  }

  .guidance-grid article {
    padding-right: 24px;
  }

  .guidance-grid article + article {
    padding-left: 24px;
  }

  .state-rail {
    grid-template-columns: repeat(3, 1fr);
  }

  .state-rail > div:nth-child(4) {
    border-left: 0;
  }

  .state-rail > div:nth-child(n + 4) {
    border-top: 1px solid var(--line-light);
  }

  .mode-panel {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  }

  .comparison-layout {
    gap: 52px;
  }

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

@media (max-width: 840px) {
  .mode-panel,
  .mode-panel.is-active {
    grid-template-columns: 1fr;
  }

  .mode-panel,
  .mode-panel > img,
  .mode-visual {
    min-height: 0;
  }

  .mode-panel > img,
  .mode-visual {
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .mode-panel > img {
    object-fit: cover;
  }
}

@media (min-width: 761px) and (max-width: 840px) {
  .hero-target,
  .hero-direction {
    display: none;
  }

  .hero-copy {
    width: min(500px, 55%);
  }

  .hero-guidance {
    width: 280px;
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 88px 0;
  }

  h2 {
    font-size: 40px;
  }

  .section-heading {
    margin-bottom: 38px;
  }

  .split-heading {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .section-heading > p:last-child,
  .section-heading > div > p:last-child {
    font-size: 16px;
  }

  .nav-inner {
    grid-template-columns: 1fr auto;
  }

  .primary-nav {
    display: none;
  }

  .header-action {
    min-height: 44px;
  }

  .hero {
    height: calc(100svh - 48px);
    min-height: 620px;
    max-height: 820px;
  }

  .hero-media {
    object-position: 57% center;
  }

  .hero-scrim {
    background: rgba(4, 6, 5, 0.72);
  }

  .hero-reference,
  .hero-guidance,
  .hero-sequence,
  .workflow-caption,
  .photo-belt,
  .stage-reference,
  .problem-visual figcaption,
  .compare-label,
  .comparison-divider i {
    backdrop-filter: none;
  }

  .hero-inner {
    align-items: flex-start;
    padding-top: 92px;
    padding-bottom: 238px;
  }

  .hero-copy {
    width: 100%;
  }

  .hero h1 {
    font-size: 56px;
  }

  .hero-claim {
    max-width: 520px;
    font-size: 22px;
  }

  .hero-mobile-prerequisite {
    display: block;
    margin: -6px 0 16px;
    color: rgba(248, 250, 247, 0.72);
    font-size: 12px;
    font-weight: 700;
  }

  .hero-lede {
    max-width: 560px;
    font-size: 16px;
  }

  .hero-context {
    display: none;
  }

  .hero-reference {
    top: auto;
    right: 12px;
    bottom: 176px;
    width: 92px;
  }

  .hero-reference span {
    padding: 5px 6px;
    font-size: 10px;
  }

  .hero-target {
    display: none;
  }

  .hero-direction {
    display: none;
  }

  .hero-guidance {
    right: 0;
    bottom: 70px;
    width: min(340px, 100%);
    min-height: 82px;
  }

  .hero-sequence {
    right: 0;
    bottom: 16px;
    width: 100%;
    grid-template-columns: repeat(4, 1fr) 44px;
  }

  .hero-next {
    display: none;
  }

  .proof-band dl {
    grid-template-columns: 1fr;
  }

  .proof-band dl > div,
  .proof-band dl > div:last-child {
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
    border-left: 0;
  }

  .proof-band dd {
    margin-left: 38px;
  }

  .proof-band dl > div:last-child {
    border-bottom: 0;
  }

  .problem-visual,
  .problem-visual > img {
    min-height: 500px;
  }

  .problem-reference {
    top: 18px;
    right: 18px;
    width: 130px;
  }

  .axis-list {
    grid-template-columns: 1fr;
  }

  .axis-list article,
  .axis-list article + article {
    padding: 22px 0;
    border-left: 0;
  }

  .workflow-stage {
    min-height: 600px;
  }

  .workflow-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .workflow-steps button:nth-child(2n) {
    border-right: 0;
  }

  .photo-belt {
    right: 14px;
    bottom: 20px;
    left: 14px;
    height: 184px;
    padding-inline: 12px;
  }

  .photo-belt img {
    width: 112px;
    height: 142px;
    flex-basis: 112px;
    margin-left: -18px;
  }

  .stage-reference {
    top: 18px;
    right: 18px;
    width: 108px;
  }

  .stage-frame {
    top: 30%;
    left: 46%;
    width: 170px;
    height: 230px;
  }

  .frame-current {
    top: 34%;
    left: 55%;
    width: 160px;
    height: 220px;
  }

  .stage-move {
    top: 52%;
    left: 12%;
  }

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

  .guidance-grid article,
  .guidance-grid article + article {
    padding: 30px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line-light-strong);
  }

  .guidance-grid article:last-child {
    border-bottom: 0;
  }

  .guidance-grid article > p:not(.guidance-index) {
    min-height: 0;
  }

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

  .state-rail > div,
  .state-rail > div:nth-child(4),
  .state-rail > div:nth-child(n + 4) {
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .state-rail > div:first-child {
    border-top: 0;
  }

  .mode-panel,
  .mode-panel.is-active {
    grid-template-columns: 1fr;
  }

  .mode-panel,
  .mode-panel > img {
    min-height: 0;
  }

  .mode-panel > img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
  }

  .mode-copy {
    padding: 30px 24px;
  }

  .mode-copy::before {
    top: 30px;
    bottom: 30px;
  }

  .scenario-line {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenario-line li:nth-child(3) {
    border-left: 0;
  }

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

  .status-matrix span {
    font-size: 15px;
  }

  .status-matrix strong {
    justify-content: flex-start;
  }

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

  .boundary-grid article,
  .boundary-grid article + article {
    padding: 28px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line-dark-strong);
  }

  .boundary-grid article:last-child {
    border-bottom: 0;
  }

  .boundary-grid article > span {
    margin-bottom: 14px;
  }

  .faq {
    margin-top: 56px;
  }

  .closing {
    min-height: 560px;
  }

  .closing-inner h2 {
    font-size: 44px;
  }

  .site-footer .content-width {
    grid-template-columns: 1fr auto;
    padding: 26px 0;
  }

  .site-footer p {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 76px 0;
  }

  h2 {
    font-size: 34px;
  }

  h3 {
    font-size: 21px;
  }

  p {
    font-size: 16px;
  }

  .brand-copy small {
    display: none;
  }

  .header-action {
    padding-inline: 11px;
    font-size: 12px;
  }

  .hero {
    min-height: 620px;
  }

  .hero-inner {
    padding-top: 84px;
    padding-bottom: 230px;
  }

  .eyebrow {
    font-size: 11px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-claim {
    font-size: 20px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .hero-context {
    display: none;
  }

  .hero-actions .action {
    min-width: 0;
    padding-inline: 8px;
    font-size: 13px;
  }

  .hero-reference {
    bottom: 176px;
    width: 72px;
  }

  .hero-direction {
    display: none;
  }

  .hero-guidance {
    bottom: 68px;
    grid-template-columns: 10px 1fr;
    min-height: 88px;
    padding: 13px 14px;
  }

  .hero-guidance strong {
    font-size: 16px;
  }

  .hero-guidance p {
    font-size: 12px;
  }

  .hero-guidance-meta > span {
    font-size: 9px;
  }

  .hero-sequence {
    bottom: 14px;
  }

  .hero-sequence button {
    padding-inline: 3px;
    font-size: 11px;
  }

  .hero-sequence button > span:not(.hero-play-icon) {
    display: none;
  }

  .problem-visual,
  .problem-visual > img {
    min-height: 430px;
  }

  .problem-reference {
    width: 105px;
    border-width: 3px;
  }

  .problem-visual figcaption {
    right: 10px;
    bottom: 10px;
    left: 10px;
    font-size: 12px;
  }

  .workflow-stage {
    min-height: 550px;
  }

  .workflow-caption {
    top: 14px;
    left: 14px;
    max-width: calc(100% - 150px);
    padding: 12px;
  }

  .workflow-caption strong {
    font-size: 14px;
  }

  .workflow-caption.is-guiding,
  .workflow-caption.is-ready {
    right: 14px;
    bottom: 14px;
    left: 14px;
    max-width: none;
  }

  .workflow-steps button {
    min-height: 106px;
    padding: 16px 12px;
  }

  .workflow-steps button strong {
    font-size: 14px;
  }

  .workflow-steps button small {
    display: none;
  }

  .photo-belt {
    height: 165px;
  }

  .photo-belt img {
    width: 96px;
    height: 126px;
    flex-basis: 96px;
  }

  .mode-switcher {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .mode-switcher button {
    padding-inline: 6px;
    font-size: 12px;
  }

  .scenario-line {
    grid-template-columns: 1fr;
  }

  .scenario-line li,
  .scenario-line li:nth-child(3) {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .scenario-line li:first-child {
    border-top: 0;
  }

  .compare-notes > div {
    grid-template-columns: 105px 1fr;
  }

  .comparison-divider i {
    width: 42px;
    height: 42px;
  }

  .comparison-divider i::before,
  .comparison-divider i::after {
    top: 14px;
  }

  .status-matrix > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .status-matrix strong {
    text-align: left;
  }

  .closing-inner h2 {
    font-size: 38px;
  }

  .closing-actions {
    display: grid;
  }
}

@media (min-width: 481px) and (max-width: 760px) and (max-height: 780px) {
  .hero-inner {
    padding-top: 84px;
  }

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

  .hero-claim {
    font-size: 20px;
  }

  .hero-lede,
  .hero-context {
    display: none;
  }
}

@media (max-width: 480px) and (max-height: 780px) {
  .hero-lede,
  .hero-context {
    display: none;
  }
}

@media (min-width: 761px) and (max-height: 760px) {
  .hero {
    height: calc(100svh - 48px);
    min-height: 600px;
  }

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

  .hero-claim {
    font-size: 21px;
  }

  .hero-lede {
    margin-bottom: 18px;
    font-size: 15px;
  }

  .hero-target {
    top: 24%;
    width: 210px;
    height: 260px;
  }

  .hero-reference {
    width: 105px;
  }

  .hero-guidance {
    bottom: 14%;
    min-height: 90px;
  }

  .hero-guidance p {
    display: none;
  }
}

@media (max-width: 760px) and (max-height: 740px) {
  .hero {
    height: calc(100svh - 42px);
    min-height: 560px;
  }

  .hero-inner {
    padding-top: 78px;
  }

  .hero h1 {
    margin-bottom: 10px;
    font-size: 42px;
  }

  .hero-claim {
    margin-bottom: 16px;
    font-size: 18px;
  }

  .hero-lede,
  .hero-context,
  .hero-reference,
  .hero-target,
  .hero-direction {
    display: none;
  }

  .hero-guidance {
    bottom: 66px;
  }

  .hero-sequence {
    bottom: 12px;
  }
}

@media (max-height: 620px) {
  .hero {
    height: calc(100svh - 34px);
    min-height: 0;
  }

  .hero-inner {
    padding-top: 70px;
    padding-bottom: 20px;
  }

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

  .hero-claim {
    font-size: 18px;
  }

  .hero-context,
  .hero-reference,
  .hero-target,
  .hero-direction,
  .hero-lede,
  .hero-guidance,
  .hero-sequence {
    display: none;
  }
}

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

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

  .reveal-ready [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .hero-sequence {
    grid-template-columns: repeat(4, 1fr);
  }

  .hero-play {
    display: none;
  }
}