:root {
  color-scheme: dark;
  --bg: #02060d;
  --bg-soft: #06101c;
  --panel: rgba(9, 19, 31, 0.72);
  --panel-strong: rgba(248, 252, 255, 0.96);
  --text: #f7fbff;
  --text-dark: #08101c;
  --muted: #95a7b8;
  --muted-dark: #5c6b78;
  --line: rgba(255, 255, 255, 0.12);
  --cyan: #13d8ff;
  --blue: #3a7bff;
  --mint: #5bf2c9;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
  overflow-x: hidden;
}

body::selection {
  color: #001018;
  background: var(--cyan);
}

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 40;
  transform: translateY(-160%);
  border-radius: var(--radius);
  background: var(--cyan);
  color: #03111a;
  padding: 0.75rem 1rem;
  font-weight: 700;
  transition: transform 180ms ease;
}

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

.lang-ru {
  display: none;
}

html[data-lang="ru"] .lang-en {
  display: none;
}

html[data-lang="ru"] .lang-ru {
  display: inline;
}

html[data-lang="ru"] .lang-toggle__ru,
html[data-lang="en"] .lang-toggle__en {
  color: #03111a;
  background: var(--cyan);
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.ambient__beam {
  position: absolute;
  width: 42rem;
  height: 42rem;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.24;
  animation: drift 15s ease-in-out infinite alternate;
}

.ambient__beam--cyan {
  left: -14rem;
  top: 10rem;
  background: radial-gradient(circle, rgba(19, 216, 255, 0.68), rgba(19, 216, 255, 0));
}

.ambient__beam--blue {
  right: -16rem;
  top: -8rem;
  background: radial-gradient(circle, rgba(58, 123, 255, 0.58), rgba(58, 123, 255, 0));
  animation-delay: -5s;
}

.ambient__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), transparent 82%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: 1rem 0;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
  font-weight: 800;
}

.brand img {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 8px;
  box-shadow: 0 0 28px rgba(19, 216, 255, 0.28);
}

.top-nav {
  justify-self: center;
  display: flex;
  gap: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(2, 6, 13, 0.56);
  padding: 0.28rem;
}

.top-nav a,
.lang-toggle {
  min-height: 2.35rem;
  border-radius: 999px;
}

.top-nav a {
  display: grid;
  place-items: center;
  padding: 0 0.95rem;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 180ms ease, background 180ms ease;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--line);
  background: rgba(2, 6, 13, 0.56);
  color: var(--muted);
  padding: 0.25rem;
  cursor: pointer;
}

.lang-toggle span:not(.lang-toggle__divider) {
  display: grid;
  place-items: center;
  min-width: 2.1rem;
  min-height: 1.8rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  transition: background 180ms ease, color 180ms ease;
}

.lang-toggle__divider {
  width: 1px;
  height: 1rem;
  background: var(--line);
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(14rem, 0.58fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  width: min(calc(100% - 2rem), var(--max));
  min-height: calc(100svh - 5.5rem);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 7rem) 0 4rem;
}

.hero__copy,
.phone-stage {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.status-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(19, 216, 255, 0.65);
  animation: ping 2.4s ease-out infinite;
}

h1,
h2,
h3,
h4,
p {
  text-wrap: balance;
}

h1 {
  margin: 0;
  max-width: min(100%, 10.8ch);
  font-size: clamp(3.35rem, 7.7vw, 6.7rem);
  line-height: 0.92;
  font-weight: 900;
  letter-spacing: 0;
}

html[data-lang="en"] h1 .lang-en,
html[data-lang="ru"] h1 .lang-ru,
html[data-lang="en"] .document-header h2 .lang-en,
html[data-lang="ru"] .document-header h2 .lang-ru,
html[data-lang="en"] .section-heading h2 .lang-en,
html[data-lang="ru"] .section-heading h2 .lang-ru {
  display: block;
  max-width: 100%;
  overflow-wrap: break-word;
}

.hero__lede {
  max-width: 45rem;
  margin: 1.45rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  border-radius: var(--radius);
  padding: 0 1.15rem;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

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

.button--primary {
  background: linear-gradient(135deg, var(--cyan), #0ea8db);
  color: #03111a;
  box-shadow: 0 18px 44px rgba(19, 216, 255, 0.25);
}

.button--ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.phone-stage {
  display: grid;
  place-items: center;
  min-height: 36rem;
  justify-self: end;
  width: 100%;
}

.phone {
  position: relative;
  width: min(100%, 18.5rem);
  aspect-ratio: 0.52;
  border: 10px solid #0b0d11;
  border-radius: 3.4rem;
  background: #05080d;
  box-shadow: var(--shadow), 0 0 70px rgba(19, 216, 255, 0.16);
  overflow: hidden;
  animation: floatPhone 6s ease-in-out infinite;
}

.phone::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 2.8rem;
  pointer-events: none;
}

.phone__bar {
  position: absolute;
  left: 50%;
  top: 1rem;
  z-index: 2;
  width: 8rem;
  height: 1.8rem;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #000;
}

.phone__screen {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 2rem;
  background:
    radial-gradient(circle at 50% 48%, rgba(19, 216, 255, 0.2), transparent 35%),
    linear-gradient(180deg, #07111f 0%, #03060b 100%);
}

.pulse-orbit {
  position: relative;
  width: 13.5rem;
  height: 13.5rem;
  display: grid;
  place-items: center;
}

.pulse-orbit > span {
  position: absolute;
  inset: 1.1rem;
  border: 1px solid rgba(19, 216, 255, 0.28);
  border-radius: 50%;
  animation: orbitPulse 3.8s ease-out infinite;
}

.pulse-orbit > span:nth-child(2) {
  animation-delay: 0.8s;
}

.pulse-orbit > span:nth-child(3) {
  animation-delay: 1.6s;
}

.pulse-core {
  position: relative;
  display: grid;
  place-items: center;
  width: 6rem;
  height: 6rem;
  border-radius: 1.6rem;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 0 42px rgba(19, 216, 255, 0.3);
}

.pulse-core img {
  width: 3.9rem;
  height: 3.9rem;
  border-radius: 1.15rem;
}

.privacy-stack {
  position: absolute;
  bottom: 6.8rem;
  left: 2rem;
  right: 2rem;
  display: grid;
  gap: 0.8rem;
}

.privacy-line,
.privacy-pill {
  height: 0.65rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.privacy-line {
  width: 55%;
}

.privacy-line--wide {
  width: 82%;
}

.privacy-pill {
  width: 42%;
  background: linear-gradient(90deg, var(--cyan), var(--mint));
}

.signal-row {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  display: flex;
  align-items: end;
  gap: 0.34rem;
}

.signal-row span {
  width: 0.55rem;
  border-radius: 999px;
  background: var(--cyan);
  animation: signal 1.4s ease-in-out infinite;
}

.signal-row span:nth-child(1) {
  height: 0.75rem;
}

.signal-row span:nth-child(2) {
  height: 1.2rem;
  animation-delay: 0.18s;
}

.signal-row span:nth-child(3) {
  height: 1.8rem;
  animation-delay: 0.36s;
}

.summary-band {
  width: 100%;
  padding: 5rem 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.07));
  border-block: 1px solid var(--line);
}

.section-heading,
.summary-grid,
.policy-shell,
.site-footer {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.section-heading {
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  line-height: 1;
  letter-spacing: 0;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.summary-card {
  min-height: 17rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 1.15rem;
  backdrop-filter: blur(18px);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.summary-card:hover {
  transform: translateY(-4px);
  border-color: rgba(19, 216, 255, 0.46);
  background: rgba(11, 26, 42, 0.86);
}

.summary-card__icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 2rem;
  border-radius: 50%;
  background: rgba(19, 216, 255, 0.14);
  color: var(--cyan);
  font-weight: 900;
  font-size: 0.78rem;
}

.summary-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1.05rem;
  line-height: 1.18;
}

.summary-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.policy-shell {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 1rem;
  padding: 5rem 0;
  align-items: start;
}

.policy-index {
  position: sticky;
  top: 5.5rem;
  display: grid;
  gap: 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(4, 9, 17, 0.72);
  padding: 0.85rem;
  backdrop-filter: blur(18px);
}

.policy-index__title {
  margin: 0 0 0.45rem;
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.policy-index a {
  border-radius: 6px;
  color: var(--muted);
  padding: 0.58rem 0.65rem;
  font-size: 0.92rem;
  transition: color 180ms ease, background 180ms ease;
}

.policy-index a:hover,
.policy-index a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.policy-document {
  border-radius: var(--radius);
  background: var(--panel-strong);
  color: var(--text-dark);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.document-header {
  padding: clamp(1.4rem, 4vw, 3rem);
  color: var(--text);
  background:
    radial-gradient(circle at 85% 20%, rgba(19, 216, 255, 0.34), transparent 34%),
    linear-gradient(135deg, #06111f 0%, #02060d 68%);
}

.document-header h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 5rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.document-header p:not(.eyebrow) {
  max-width: 55rem;
  margin: 1.2rem 0 0;
  color: #b8c8d6;
  font-size: 1.05rem;
}

.policy-section {
  padding: clamp(1.4rem, 4vw, 2.5rem) clamp(1.4rem, 4vw, 3rem);
  border-top: 1px solid rgba(2, 6, 13, 0.09);
  scroll-margin-top: 6rem;
}

.policy-section h3 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.policy-section h4 {
  margin: 0 0 0.35rem;
  font-size: 0.96rem;
  letter-spacing: 0;
}

.policy-section p,
.policy-section li {
  color: var(--muted-dark);
}

.policy-section p {
  margin: 0;
}

.policy-section ul {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding-left: 1.2rem;
}

.data-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.15rem;
}

.data-list > div {
  border: 1px solid rgba(2, 6, 13, 0.1);
  border-radius: var(--radius);
  background: rgba(2, 6, 13, 0.035);
  padding: 1rem;
}

.policy-section a {
  color: #006b91;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.policy-section--contact {
  background: rgba(19, 216, 255, 0.08);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--cyan);
  font-weight: 800;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms ease, transform 620ms ease;
}

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

@keyframes drift {
  to {
    transform: translate3d(4rem, 3rem, 0) scale(1.08);
  }
}

@keyframes ping {
  70% {
    box-shadow: 0 0 0 0.55rem rgba(19, 216, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(19, 216, 255, 0);
  }
}

@keyframes floatPhone {
  0%,
  100% {
    transform: translateY(0) rotate(-1deg);
  }
  50% {
    transform: translateY(-16px) rotate(1deg);
  }
}

@keyframes orbitPulse {
  0% {
    transform: scale(0.76);
    opacity: 0.72;
  }
  100% {
    transform: scale(1.42);
    opacity: 0;
  }
}

@keyframes signal {
  50% {
    opacity: 0.45;
    transform: scaleY(0.64);
  }
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .top-nav {
    display: none;
  }

  .lang-toggle {
    justify-self: end;
  }

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

  h1 {
    max-width: 10ch;
  }

  .phone-stage {
    min-height: auto;
  }

  .phone {
    width: min(72vw, 19rem);
  }

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

  .policy-shell {
    grid-template-columns: 1fr;
  }

  .policy-index {
    position: relative;
    top: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .policy-index__title {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .site-header,
  .section-heading,
  .summary-grid,
  .policy-shell,
  .site-footer {
    width: min(calc(100% - 1rem), var(--max));
  }

  .brand span {
    max-width: 7rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero {
    width: min(calc(100% - 1rem), var(--max));
    padding-top: 2.2rem;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.75rem, 12vw, 3.65rem);
    line-height: 0.96;
  }

  .hero__actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .summary-band {
    padding: 3rem 0.5rem;
  }

  .summary-grid,
  .data-list {
    grid-template-columns: 1fr;
  }

  .summary-card {
    min-height: 12rem;
  }

  .policy-index {
    grid-template-columns: 1fr;
  }

  .document-header,
  .policy-section {
    padding-inline: 1.05rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

@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;
  }

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