/*
 * womenglian VPN — clean editorial homepage
 * Static, system-font-first and motion-enhanced without visual dependencies.
 */

:root {
  color-scheme: light;
  --color-ice: #dcedff;
  --color-blue: #94b0da;
  --color-slate: #8f91a2;
  --color-charcoal: #505a5b;
  --color-ink: #343f3e;
  --color-white: #ffffff;
  --color-paper: #f7f9fa;
  --color-line: rgba(52, 63, 62, 0.2);
  --color-line-soft: rgba(52, 63, 62, 0.11);
  --font-sans: Inter, "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --shell: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --section-space: clamp(92px, 11vw, 168px);
  --ease-out: cubic-bezier(0.2, 0.72, 0.22, 1);
  --orbit-speed: 28s;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-white);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

button,
summary {
  font: inherit;
}

button {
  color: inherit;
}

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

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

.shell {
  width: min(var(--shell), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
}

.section {
  padding-block: var(--section-space);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 14px;
  background: var(--color-ink);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

/* Header and editorial link motion */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, 0.94);
  transition: border-color 220ms ease, background-color 220ms ease;
}

.site-header.is-scrolled {
  border-color: var(--color-line-soft);
  background: rgba(255, 255, 255, 0.98);
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(210px, 1fr) auto minmax(210px, 1fr);
  min-height: 76px;
  align-items: center;
  gap: 34px;
}

.brand {
  display: inline-flex;
  width: fit-content;
  min-height: 34px;
  align-items: center;
  gap: 11px;
  color: var(--color-ink);
  text-decoration: none;
}

.brand__icon {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  object-fit: contain;
}

.brand__word {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand__word b {
  color: var(--color-slate);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 3vw, 42px);
}

.desktop-nav a,
.text-link,
.footer-links a {
  position: relative;
  text-decoration: none;
}

.desktop-nav a {
  padding-block: 8px;
  color: var(--color-charcoal);
  font-size: 14px;
  font-weight: 550;
  transition: color 220ms ease, transform 220ms var(--ease-out);
}

.desktop-nav a::after,
.text-link::after,
.footer-links a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms var(--ease-out);
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible,
.desktop-nav a[aria-current="true"] {
  color: var(--color-ink);
  transform: translateY(-2px);
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after,
.desktop-nav a[aria-current="true"]::after,
.text-link:hover::after,
.text-link:focus-visible::after,
.footer-links a:hover::after,
.footer-links a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.desktop-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
}

.text-link {
  font-size: 14px;
  font-weight: 600;
}

.text-link::after {
  bottom: -3px;
}

.mobile-menu {
  display: none;
  justify-self: end;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  border: 1px solid transparent;
  border-radius: 2px;
  padding: 13px 20px;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 220ms ease, border-color 220ms ease, color 220ms ease, transform 160ms ease;
}

.button i {
  font-size: 17px;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
  transition: transform 220ms var(--ease-out);
}

.button:hover i,
.button:focus-visible i {
  transform: translate(2px, 2px);
}

.button:active {
  transform: scale(0.98);
}

.button--small {
  min-height: 40px;
  padding: 9px 17px;
}

.button--blue {
  background: var(--color-blue);
  color: var(--color-ink);
}

.button--blue:hover,
.button--blue:focus-visible {
  background: #a5bee1;
}

.button--line {
  border-color: var(--color-ink);
  background: transparent;
  color: var(--color-ink);
}

.button--line:hover,
.button--line:focus-visible {
  background: var(--color-ink);
  color: var(--color-white);
}

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

.button--ink:hover,
.button--ink:focus-visible {
  background: var(--color-charcoal);
}

.button--ice {
  background: var(--color-ice);
  color: var(--color-ink);
}

.button--ice:hover,
.button--ice:focus-visible {
  background: var(--color-blue);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100svh - 76px);
  overflow: hidden;
  border-bottom: 1px solid var(--color-line-soft);
  background: var(--color-ice);
}

.hero::before {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, transparent 0, transparent calc(8.333% - 1px), rgba(52, 63, 62, 0.045) calc(8.333% - 1px), rgba(52, 63, 62, 0.045) 8.333%),
    repeating-linear-gradient(0deg, transparent 0, transparent 79px, rgba(52, 63, 62, 0.035) 79px, rgba(52, 63, 62, 0.035) 80px);
  content: "";
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 92%);
  pointer-events: none;
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: calc(100svh - 76px);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: center;
  gap: clamp(18px, 2vw, 28px);
  padding-block: clamp(78px, 9vw, 136px);
}

.hero__copy {
  grid-column: 1 / span 6;
}

.eyebrow,
.section-index,
.plans__index,
.platform-name,
.connection-visual__index {
  margin: 0;
  color: var(--color-charcoal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.4;
}

.eyebrow {
  margin-bottom: clamp(28px, 4vw, 52px);
}

.hero__title {
  max-width: 760px;
  margin: 0;
  font-size: clamp(54px, 6.5vw, 100px);
  font-weight: 560;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.title-line {
  display: block;
  overflow: hidden;
  padding: 0.04em 0.08em 0.09em 0;
}

.title-line > span {
  display: block;
  animation: titleReveal 900ms var(--ease-out) both;
}

.title-line:nth-child(2) > span {
  animation-delay: 110ms;
}

.hero__lead {
  max-width: 540px;
  margin: 36px 0 0;
  color: var(--color-charcoal);
  font-size: clamp(17px, 1.55vw, 21px);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.hero__actions .button {
  min-width: 168px;
}

.hero__support {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 24px 0 0;
  color: var(--color-charcoal);
  font-size: 13px;
}

.hero__support span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-ink);
  box-shadow: 9px 0 0 var(--color-blue);
}

/* Connection orbit: CSS lines only, with deliberately slow motion. */
.connection-visual {
  position: relative;
  width: min(100%, 560px);
  aspect-ratio: 1;
  grid-column: 8 / -1;
  justify-self: end;
  --orbit-speed: 28s;
}

.connection-visual:hover {
  --orbit-speed: 21s;
}

.connection-visual__index {
  position: absolute;
  top: 0;
  right: 0;
}

.orbit,
.orbit-runner,
.orbit-axis,
.orbit-core,
.signal,
.orbit-label {
  position: absolute;
}

.orbit {
  top: 50%;
  left: 50%;
  border: 1px solid rgba(52, 63, 62, 0.34);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit::before {
  position: absolute;
  width: 7px;
  height: 7px;
  border: 2px solid var(--color-ice);
  border-radius: 50%;
  background: var(--color-charcoal);
  content: "";
}

.orbit--outer {
  width: 89%;
  height: 89%;
  border-style: dashed;
  animation: orbitSpin 80s linear infinite;
}

.orbit--outer::before {
  top: 18%;
  right: 8%;
}

.orbit--middle {
  width: 68%;
  height: 68%;
  border-color: rgba(143, 145, 162, 0.65);
}

.orbit--middle::before {
  right: 16%;
  bottom: 8%;
  background: var(--color-blue);
}

.orbit--inner {
  width: 43%;
  height: 43%;
  border-style: dashed;
  border-color: rgba(52, 63, 62, 0.48);
  animation: orbitSpinReverse 46s linear infinite;
}

.orbit--inner::before {
  top: -5px;
  left: 50%;
}

.orbit-runner {
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: orbitSpin var(--orbit-speed) linear infinite;
}

.orbit-runner i {
  position: absolute;
  top: -4px;
  left: calc(50% - 4px);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-ink);
  box-shadow: 0 0 0 5px rgba(148, 176, 218, 0.34);
}

.orbit-runner--a {
  width: 89%;
  height: 89%;
}

.orbit-runner--b {
  width: 68%;
  height: 68%;
  animation-direction: reverse;
  animation-duration: calc(var(--orbit-speed) * 1.25);
}

.orbit-runner--b i {
  background: var(--color-blue);
}

.orbit-axis {
  top: 50%;
  left: 50%;
  background: rgba(52, 63, 62, 0.18);
  transform: translate(-50%, -50%);
}

.orbit-axis--x {
  width: 98%;
  height: 1px;
}

.orbit-axis--y {
  width: 1px;
  height: 98%;
}

.orbit-core {
  top: 50%;
  left: 50%;
  display: grid;
  width: 132px;
  height: 132px;
  place-content: center;
  border: 1px solid var(--color-ink);
  background: var(--color-ice);
  text-align: center;
  transform: translate(-50%, -50%) rotate(45deg);
}

.orbit-core span,
.orbit-core strong,
.orbit-core i {
  transform: rotate(-45deg);
}

.orbit-core span {
  color: var(--color-slate);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.orbit-core strong {
  margin-top: 2px;
  font-size: 16px;
  letter-spacing: 0.08em;
}

.orbit-core i {
  width: 5px;
  height: 5px;
  margin: 11px auto 0;
  border-radius: 50%;
  background: var(--color-blue);
  animation: signalPulse 2.8s ease-in-out infinite;
}

.orbit-label {
  padding: 4px 7px;
  border: 1px solid rgba(52, 63, 62, 0.28);
  background: var(--color-ice);
  color: var(--color-charcoal);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.orbit-label--a { top: 10%; left: 19%; }
.orbit-label--b { top: 24%; right: 2%; }
.orbit-label--c { bottom: 12%; left: 4%; }
.orbit-label--d { right: 17%; bottom: 4%; }

.signal {
  width: 11px;
  height: 11px;
  border: 1px solid var(--color-charcoal);
  border-radius: 50%;
}

.signal::before,
.signal::after {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(80, 90, 91, 0.38);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%) scale(0.4);
  animation: signalWave 4.2s ease-out infinite;
}

.signal::after {
  animation-delay: 1.4s;
}

.signal--a { top: 2%; left: 47%; }
.signal--b { right: 3%; bottom: 31%; }
.signal--c { bottom: 2%; left: 34%; }

/* Shared section heading */
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(260px, 3fr);
  align-items: end;
  gap: 40px;
  border-top: 1px solid var(--color-ink);
  padding-top: 20px;
}

.section-heading h2,
.principle h2,
.plans h2 {
  margin: 18px 0 0;
  font-size: clamp(40px, 5vw, 68px);
  font-weight: 540;
  letter-spacing: -0.055em;
  line-height: 1.06;
}

.section-heading > p {
  max-width: 340px;
  margin: 0;
  color: var(--color-charcoal);
  font-size: 14px;
}

.section-heading--compact {
  grid-template-columns: 1fr;
}

/* Download rails */
.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: clamp(48px, 6vw, 80px);
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.download-platform {
  position: relative;
  display: grid;
  min-height: 430px;
  grid-template-columns: 54px minmax(0, 1fr) minmax(130px, 0.72fr);
  gap: 22px;
  overflow: hidden;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding: clamp(26px, 3vw, 44px);
}

.download-platform::before,
.download-platform::after {
  position: absolute;
  z-index: 2;
  background: var(--color-ink);
  content: "";
  pointer-events: none;
  transition: transform 520ms var(--ease-out);
}

.download-platform::before {
  top: 0;
  left: 0;
  width: 46%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
}

.download-platform::after {
  right: 0;
  bottom: 0;
  width: 46%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
}

.download-platform:hover::before,
.download-platform:hover::after,
.download-platform:focus-within::before,
.download-platform:focus-within::after {
  transform: scaleX(1);
}

.download-platform__number {
  color: var(--color-slate);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.download-platform__content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.download-platform h3 {
  margin: 34px 0 10px;
  font-size: clamp(25px, 2.5vw, 34px);
  font-weight: 570;
  letter-spacing: -0.04em;
}

.download-platform__content > p:not(.platform-name) {
  margin: 0;
  color: var(--color-charcoal);
}

.version-label {
  display: block;
  min-height: 24px;
  margin: 20px 0 34px;
  color: var(--color-slate);
  font-size: 12px;
  letter-spacing: 0.03em;
}

.version-label[hidden] {
  visibility: hidden;
}

.version-label--plain {
  max-width: 230px;
  line-height: 1.65;
}

.download-platform .button {
  min-width: 154px;
  margin-top: auto;
}

.platform-art {
  position: relative;
  display: flex;
  min-height: 260px;
  align-items: center;
  justify-content: center;
  align-self: center;
  overflow: hidden;
  border-left: 1px solid var(--color-line-soft);
  background-size: 14px 14px;
  transition: transform 520ms var(--ease-out);
}

.download-platform:hover .platform-art,
.download-platform:focus-within .platform-art {
  transform: translateY(-5px);
}

.platform-art > span {
  position: absolute;
  right: 12px;
  bottom: 10px;
  color: var(--color-slate);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
}

.platform-art--android {
  background-image: repeating-linear-gradient(135deg, transparent 0, transparent 7px, rgba(148, 176, 218, 0.22) 7px, rgba(148, 176, 218, 0.22) 8px);
}

.platform-art--windows {
  background-image:
    repeating-linear-gradient(90deg, transparent 0, transparent 13px, rgba(143, 145, 162, 0.15) 13px, rgba(143, 145, 162, 0.15) 14px),
    repeating-linear-gradient(0deg, transparent 0, transparent 13px, rgba(143, 145, 162, 0.15) 13px, rgba(143, 145, 162, 0.15) 14px);
}

.android-glyph {
  position: relative;
  width: 72px;
  height: 56px;
  border: 2px solid var(--color-ink);
  border-radius: 36px 36px 3px 3px;
  border-bottom-width: 8px;
}

.android-glyph::before,
.android-glyph::after {
  position: absolute;
  top: -12px;
  width: 2px;
  height: 18px;
  background: var(--color-ink);
  content: "";
}

.android-glyph::before { left: 17px; transform: rotate(-28deg); }
.android-glyph::after { right: 17px; transform: rotate(28deg); }

.android-glyph b {
  position: absolute;
  top: 24px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-ink);
}

.android-glyph b:nth-of-type(1) { left: 20px; }
.android-glyph b:nth-of-type(2) { right: 20px; }

.windows-glyph {
  display: grid;
  width: 76px;
  height: 76px;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  transform: skewY(-4deg);
}

.windows-glyph i {
  display: block;
  border: 2px solid var(--color-ink);
  background: rgba(148, 176, 218, 0.28);
}

/* Three steps */
.steps {
  padding-top: 24px;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: clamp(56px, 7vw, 92px) 0 0;
  padding: 0;
  list-style: none;
}

.step {
  min-width: 0;
  border-right: 1px solid var(--color-line-soft);
  padding-right: clamp(28px, 4vw, 58px);
}

.step + .step {
  padding-left: clamp(28px, 4vw, 58px);
}

.step:last-child {
  border-right: 0;
  padding-right: 0;
}

.step__control {
  position: relative;
  display: block;
  width: 100%;
  min-height: 350px;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  perspective: 1200px;
  -webkit-tap-highlight-color: transparent;
}

.step__control:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 7px;
}

.step__flip {
  position: absolute;
  inset: 0;
  display: block;
  transform-style: preserve-3d;
  transition: transform 500ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.step__control[aria-expanded="true"] .step__flip {
  transform: rotateY(180deg);
}

.step__face {
  position: absolute;
  inset: 0;
  display: grid;
  overflow: hidden;
  background: var(--color-white);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: background-color 220ms ease;
}

.step__front {
  grid-template-rows: auto 1px 1fr auto;
}

.step__back {
  grid-template-rows: auto 1fr auto;
  border-top: 2px solid var(--color-blue);
  background: color-mix(in srgb, var(--color-ice) 72%, var(--color-white));
  padding: 22px 24px 20px;
  transform: rotateY(180deg);
}

.step__control:hover .step__front,
.step__control:focus-visible .step__front {
  background: color-mix(in srgb, var(--color-ice) 32%, var(--color-white));
}

.step__number {
  color: var(--color-slate);
  font-size: clamp(54px, 6vw, 82px);
  font-weight: 430;
  letter-spacing: -0.06em;
  line-height: 1;
  transition: color 220ms ease;
}

.step__control:hover .step__number,
.step__control:focus-visible .step__number {
  color: var(--color-blue);
}

.step__line {
  display: block;
  width: 100%;
  margin-top: 28px;
  background: var(--color-ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 750ms var(--ease-out) 120ms;
}

.step__copy {
  display: block;
  align-self: end;
  padding-top: 44px;
}

.step__title,
.step__back-title {
  display: block;
  font-size: 22px;
  font-weight: 570;
  letter-spacing: -0.03em;
}

.step__description,
.step__back-description {
  display: block;
  margin-top: 12px;
  color: var(--color-charcoal);
  font-size: 14px;
  line-height: 1.75;
}

.step__state {
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: end;
  margin-top: 28px;
  color: var(--color-slate);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.step__state::after {
  width: 34px;
  border-top: 1px solid currentColor;
  content: "";
  transition: width 220ms var(--ease-out);
}

.step__control:hover .step__state::after,
.step__control:focus-visible .step__state::after {
  width: 48px;
}

.step__back-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--color-charcoal);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.step__back-head i,
.step__back-head b {
  font: inherit;
}

.step__back-head b {
  color: var(--color-blue);
}

.step__back-copy {
  display: block;
  align-self: center;
  max-width: 290px;
}

.step__back-title {
  font-size: 24px;
}

.step__back-description {
  margin-top: 18px;
}

.step__meta {
  display: block;
  border-top: 1px solid color-mix(in srgb, var(--color-slate) 45%, transparent);
  padding-top: 16px;
  color: var(--color-slate);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.step.is-visible .step__line,
.no-js .step__line {
  transform: scaleX(1);
}

/* Principle */
.principle {
  position: relative;
  overflow: hidden;
  border-block: 1px solid var(--color-line-soft);
  background: var(--color-paper);
}

.principle::after {
  position: absolute;
  top: 0;
  right: -80px;
  width: min(48vw, 700px);
  height: 100%;
  background-image: repeating-linear-gradient(135deg, transparent 0, transparent 17px, rgba(148, 176, 218, 0.12) 17px, rgba(148, 176, 218, 0.12) 18px);
  content: "";
  pointer-events: none;
}

.principle__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 28px);
}

.principle__copy {
  grid-column: 1 / span 5;
}

.principle__copy > p:last-child {
  max-width: 500px;
  margin: 32px 0 0;
  color: var(--color-charcoal);
  font-size: 17px;
}

.status-board {
  grid-column: 7 / -1;
  margin: 0;
  border-top: 1px solid var(--color-ink);
  background: var(--color-white);
}

.status-board > div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
  padding: 20px 22px;
  transition: background-color 220ms ease, padding-left 220ms var(--ease-out);
}

.status-board > div:hover {
  padding-left: 28px;
  background: var(--color-ice);
}

.status-board dt {
  color: var(--color-charcoal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.status-board dt span {
  display: inline-block;
  min-width: 48px;
  color: var(--color-slate);
}

.status-board dd {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.status-board dd i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-blue);
}

/* Confirmed plan pricing in an editorial grid. */
.plans {
  position: relative;
  overflow: hidden;
  background: var(--color-ink);
  color: var(--color-white);
}

.plans__grid {
  position: relative;
  display: grid;
  min-height: 0;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 34px clamp(32px, 5vw, 72px);
}

.plans__index {
  position: relative;
  z-index: 1;
  grid-column: 1 / -1;
  align-self: start;
  color: var(--color-blue);
}

.plans__copy {
  position: relative;
  z-index: 1;
}

.plans h2 {
  margin-top: 0;
  color: var(--color-ice);
}

.plans__copy p {
  max-width: 580px;
  margin: 24px 0 0;
  color: rgba(220, 237, 255, 0.72);
}

.plans__actions {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  align-self: end;
  gap: 24px;
}

.plans__actions .button {
  min-width: 184px;
}

.text-link--light {
  color: var(--color-ice);
}

.plans__catalog {
  position: relative;
  z-index: 1;
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(224px, auto));
  gap: 1px;
  border: 1px solid rgba(220, 237, 255, 0.22);
  background: rgba(220, 237, 255, 0.22);
}

.plan-card {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 224px;
  grid-template-rows: auto 1fr auto;
  background: color-mix(in srgb, var(--color-ink) 94%, var(--color-charcoal));
  padding: clamp(24px, 2.6vw, 38px);
  transition: background-color 240ms ease;
}

.plan-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  border-top: 2px solid transparent;
  content: "";
  transition: border-color 240ms ease;
}

.plan-card:hover,
.plan-card:focus-within {
  background: color-mix(in srgb, var(--color-ink) 82%, var(--color-charcoal));
}

.plan-card:hover::before,
.plan-card:focus-within::before {
  border-color: var(--color-blue);
}

.plan-card--detail {
  min-height: 449px;
  grid-row: span 2;
  grid-template-rows: auto auto 1fr auto;
}

.plan-card__head {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: baseline;
  gap: 14px;
}

.plan-card__number {
  margin: 0;
  color: var(--color-blue);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.plan-card h3 {
  margin: 0;
  color: var(--color-ice);
  font-size: clamp(17px, 1.55vw, 22px);
  font-weight: 560;
  letter-spacing: -0.025em;
}

.plan-card__price {
  display: flex;
  align-items: baseline;
  align-self: center;
  margin: 24px 0;
  color: var(--color-white);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.plan-card__price > span {
  margin-right: 7px;
  color: var(--color-blue);
  font-size: 18px;
  font-weight: 650;
}

.plan-card__price strong {
  font-size: clamp(42px, 4.2vw, 62px);
  font-weight: 480;
  letter-spacing: -0.065em;
  line-height: 0.94;
}

.plan-card__price small {
  margin-left: 10px;
  color: rgba(220, 237, 255, 0.7);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.plan-card__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
  gap: 0;
  margin: 2px 0 30px;
  padding: 0;
  color: rgba(220, 237, 255, 0.78);
  list-style: none;
}

.plan-card__facts li {
  min-width: 0;
  border-top: 1px solid rgba(220, 237, 255, 0.16);
  padding: 12px 10px 11px 0;
  font-size: 11px;
  line-height: 1.5;
}

.plan-card__facts li:nth-child(even) {
  padding-right: 0;
  padding-left: 10px;
}

.plan-card__facts strong,
.plan-card__facts span {
  display: block;
}

.plan-card__facts strong {
  color: var(--color-ice);
  font-size: 15px;
  font-weight: 560;
}

.plan-card__facts span {
  margin-top: 3px;
  color: rgba(220, 237, 255, 0.52);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.plan-card__facts .plan-card__fact-wide {
  grid-column: 1 / -1;
  padding-inline: 0;
  color: var(--color-ice);
}

.plan-card__allowance {
  align-self: center;
  margin: 0 0 24px;
  border-top: 1px solid rgba(220, 237, 255, 0.16);
  padding-top: 18px;
}

.plan-card__allowance strong,
.plan-card__allowance span {
  display: block;
}

.plan-card__allowance strong {
  color: var(--color-ice);
  font-size: 22px;
  font-weight: 520;
  letter-spacing: -0.03em;
}

.plan-card__allowance span {
  margin-top: 4px;
  color: rgba(220, 237, 255, 0.52);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.plan-card__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(220, 237, 255, 0.22);
  padding-top: 16px;
  color: var(--color-ice);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.plan-card__link i {
  color: var(--color-blue);
  font-style: normal;
  transition: transform 220ms var(--ease-out);
}

.plan-card__link:hover i,
.plan-card__link:focus-visible i {
  transform: translate(2px, -2px);
}

.plan-card__link:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 7px;
}

.plans__rail {
  position: absolute;
  right: -9vw;
  bottom: -50px;
  left: 7vw;
  display: grid;
  height: 78px;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  opacity: 0.18;
  z-index: 0;
  transform: rotate(-4deg);
}

.plans__rail i {
  border: 1px solid var(--color-ice);
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent 26px, rgba(220, 237, 255, 0.25) 26px, rgba(220, 237, 255, 0.25) 27px);
  animation: railShift 16s linear infinite;
}

/* FAQ */
.faq-list {
  margin-top: clamp(50px, 7vw, 88px);
  border-top: 1px solid var(--color-ink);
}

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

.faq-item h3 {
  margin: 0;
}

.faq-item button {
  display: grid;
  width: 100%;
  grid-template-columns: 1fr 32px;
  align-items: center;
  gap: 24px;
  border: 0;
  background: transparent;
  padding: 27px 4px;
  text-align: left;
  cursor: pointer;
}

.faq-item button > span {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 540;
  letter-spacing: -0.025em;
}

.faq-item button i {
  color: var(--color-slate);
  font-size: 11px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.faq-item button b {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  justify-self: end;
}

.faq-item button b::before,
.faq-item button b::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 1px;
  background: var(--color-ink);
  content: "";
  transform: translate(-50%, -50%);
  transition: transform 260ms var(--ease-out);
}

.faq-item button b::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.is-open button b::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-item button:hover,
.faq-item button:focus-visible {
  background: rgba(220, 237, 255, 0.45);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 340ms var(--ease-out);
}

.faq-item.is-open .faq-answer,
.no-js .faq-answer {
  grid-template-rows: 1fr;
}

.faq-answer > div {
  overflow: hidden;
}

.faq-answer p {
  max-width: 760px;
  margin: 0;
  padding: 0 24px 30px 76px;
  color: var(--color-charcoal);
}

.faq-answer a {
  text-decoration-color: var(--color-blue);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(220, 237, 255, 0.12);
  background: var(--color-charcoal);
  color: var(--color-white);
  padding-block: 76px 42px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.7fr;
  align-items: start;
  gap: 64px;
}

.brand--light {
  color: var(--color-white);
}

.footer-brand p {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.footer-links {
  display: grid;
  align-items: start;
  justify-items: start;
  gap: 15px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
}

.footer-links a::after {
  bottom: -2px;
}

.footer-meta {
  text-align: right;
}

.footer-meta > span {
  color: var(--color-blue);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.footer-meta p {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
}

/* Scroll reveal: enhancement only. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 720ms var(--ease-out), transform 720ms var(--ease-out);
}

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

.js .download-platform:nth-child(2),
.js .step:nth-child(2) {
  transition-delay: 90ms;
}

.js .step:nth-child(3) {
  transition-delay: 160ms;
}

@keyframes titleReveal {
  from { opacity: 0; transform: translateY(105%); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes orbitSpin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbitSpinReverse {
  to { transform: translate(-50%, -50%) rotate(-360deg); }
}

@keyframes signalWave {
  0% { width: 12px; height: 12px; opacity: 0; }
  20% { opacity: 0.7; }
  100% { width: 52px; height: 52px; opacity: 0; }
}

@keyframes signalPulse {
  0%, 100% { opacity: 0.42; transform: rotate(-45deg) scale(0.75); }
  50% { opacity: 1; transform: rotate(-45deg) scale(1); }
}

@keyframes railShift {
  to { background-position-x: 108px; }
}

/* Tablet */
@media (max-width: 1080px) {
  .site-header__inner {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav {
    order: 3;
    grid-column: 1 / -1;
    min-height: 42px;
    border-top: 1px solid var(--color-line-soft);
  }

  .desktop-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .hero {
    min-height: auto;
  }

  .hero__grid {
    min-height: 780px;
    padding-block: 90px;
  }

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

  .connection-visual {
    width: min(100%, 430px);
    grid-column: 8 / -1;
  }

  .download-platform {
    min-height: 390px;
    grid-template-columns: 40px 1fr;
  }

  .platform-art {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 140px;
    min-height: 180px;
    opacity: 0.45;
  }

  .download-platform__content {
    grid-column: 2;
  }

  .download-platform__content > * {
    position: relative;
    z-index: 1;
  }

  .plans__catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: none;
  }

  .plan-card--detail {
    min-height: 390px;
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .plan-card__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .plan-card__facts li:nth-child(even) {
    padding-inline: 10px;
  }

  .plan-card__facts .plan-card__fact-wide {
    grid-column: auto;
    padding-inline: 10px;
  }
}

/* Mobile navigation and layouts */
@media (max-width: 820px) {
  :root {
    --section-space: 88px;
  }

  .site-header__inner {
    min-height: 68px;
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .desktop-actions {
    display: none;
  }

  .mobile-menu {
    position: relative;
    display: block;
  }

  .mobile-menu summary {
    display: grid;
    width: 42px;
    height: 42px;
    place-content: center;
    gap: 6px;
    border: 1px solid var(--color-line);
    cursor: pointer;
    list-style: none;
  }

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

  .mobile-menu summary span {
    display: block;
    width: 18px;
    height: 1px;
    background: var(--color-ink);
    transition: transform 220ms var(--ease-out);
  }

  .mobile-menu[open] summary span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .mobile-menu[open] summary span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .mobile-menu__panel {
    position: fixed;
    top: 68px;
    right: 0;
    left: 0;
    display: grid;
    border-top: 1px solid var(--color-line-soft);
    border-bottom: 1px solid var(--color-line);
    background: var(--color-white);
    padding: 12px var(--gutter) 18px;
  }

  .mobile-menu__panel a {
    border-bottom: 1px solid var(--color-line-soft);
    padding: 13px 0;
    font-size: 14px;
    text-decoration: none;
  }

  .hero__grid {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-block: 72px 58px;
  }

  .hero__copy,
  .connection-visual {
    grid-column: 1;
  }

  .hero__copy {
    max-width: 660px;
  }

  .connection-visual {
    width: min(90vw, 430px);
    margin-top: 44px;
    justify-self: center;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 22px;
  }

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

  .download-platform {
    min-height: 360px;
  }

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

  .step,
  .step + .step {
    border-right: 0;
    border-bottom: 1px solid var(--color-line-soft);
    padding: 30px 0;
  }

  .step__control {
    min-height: 290px;
  }

  .step__number {
    font-size: 50px;
  }

  .step__line {
    margin-top: 18px;
  }

  .step__copy {
    padding-top: 30px;
  }

  .step__back-copy {
    max-width: 520px;
  }

  .principle__grid {
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .principle__copy,
  .status-board {
    grid-column: 1;
  }

  .plans__grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .plans__copy,
  .plans__actions,
  .plans__catalog {
    grid-column: 1;
  }

  .plans__actions {
    align-items: flex-start;
    align-self: start;
  }

  .plans__actions .button {
    width: auto;
    min-width: 180px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-meta {
    grid-column: 1 / -1;
    text-align: left;
  }
}

@media (max-width: 520px) {
  :root {
    --gutter: 20px;
    --section-space: 76px;
  }

  .brand__word {
    font-size: 15px;
  }

  .brand__icon {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
  }

  .hero__grid {
    padding-top: 58px;
  }

  .eyebrow {
    max-width: 240px;
    margin-bottom: 30px;
    font-size: 9px;
  }

  .hero__title {
    font-size: clamp(45px, 14vw, 62px);
    letter-spacing: -0.07em;
  }

  .hero__lead {
    margin-top: 24px;
    font-size: 16px;
  }

  .hero__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-top: 28px;
  }

  .hero__actions .button {
    min-width: 0;
    padding-inline: 14px;
  }

  .connection-visual {
    width: min(88vw, 350px);
    margin-top: 38px;
  }

  .connection-visual__index,
  .orbit-label--b,
  .orbit-label--c,
  .signal--b,
  .signal--c,
  .orbit-axis--y {
    display: none;
  }

  .orbit-core {
    width: 100px;
    height: 100px;
  }

  .section-heading h2,
  .principle h2,
  .plans h2 {
    font-size: clamp(36px, 11vw, 48px);
  }

  .plans h2 {
    font-size: clamp(31px, 8.5vw, 36px);
    white-space: nowrap;
  }

  .plans__actions {
    align-items: stretch;
    flex-direction: column;
    gap: 18px;
  }

  .plans__actions .button {
    width: 100%;
  }

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

  .plan-card,
  .plan-card--detail {
    min-height: 224px;
    grid-column: auto;
  }

  .plan-card--detail {
    min-height: 0;
  }

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

  .plan-card__facts li:nth-child(even) {
    padding-right: 0;
    padding-left: 10px;
  }

  .plan-card__facts .plan-card__fact-wide {
    grid-column: 1 / -1;
    padding-inline: 0;
  }

  .download-platform {
    min-height: 350px;
    grid-template-columns: 28px 1fr;
    gap: 14px;
    padding: 24px 20px;
  }

  .download-platform h3 {
    margin-top: 26px;
  }

  .platform-art {
    width: 110px;
    min-height: 150px;
  }

  .android-glyph,
  .windows-glyph {
    transform: scale(0.72);
  }

  .windows-glyph {
    transform: scale(0.72) skewY(-4deg);
  }

  .step__control {
    min-height: 310px;
  }

  .step__title,
  .step__back-title {
    font-size: 20px;
  }

  .step__back {
    padding: 19px 18px 18px;
  }

  .step__description,
  .step__back-description {
    font-size: 13px;
  }

  .status-board > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .status-board dd {
    padding-left: 48px;
  }

  .faq-item button {
    padding-block: 23px;
  }

  .faq-item button > span {
    grid-template-columns: 40px 1fr;
    font-size: 17px;
    line-height: 1.45;
  }

  .faq-answer p {
    padding: 0 10px 26px 40px;
    font-size: 14px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .footer-meta {
    grid-column: 1;
  }
}

/* Respect the operating system motion preference. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
  }

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

  .step__line {
    transform: scaleX(1);
  }

  .step__flip,
  .step__face,
  .step__state::after {
    animation: none !important;
    transition: none !important;
  }

  .step__flip,
  .step__control[aria-expanded="true"] .step__flip,
  .step__back {
    transform: none;
  }

  .step__face {
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
  }

  .step__back {
    visibility: hidden;
    opacity: 0;
  }

  .step__control[aria-expanded="true"] .step__front {
    visibility: hidden;
    opacity: 0;
  }

  .step__control[aria-expanded="true"] .step__back {
    visibility: visible;
    opacity: 1;
  }
}

.is-paused *,
.is-paused *::before,
.is-paused *::after {
  animation-play-state: paused !important;
}