:root {
  --bg: #0f1112;
  --surface: #17191a;
  --surface-raised: #1d2021;
  --surface-soft: #131516;
  --line: #303334;
  --line-strong: #4b4e4f;
  --text: #f5f3ea;
  --text-muted: #bbb7aa;
  --text-dim: #8e8a80;
  --accent: #ffc400;
  --accent-hover: #ffd13d;
  --accent-ink: #171300;
  --focus: #ffe47b;
  --danger: #ff9d8f;
  --radius-sm: 8px;
  --radius-md: 12px;
  --max-width: 1180px;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  font-size: 16px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: Tahoma, Arial, system-ui, sans-serif;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.modal-open {
  overflow: hidden;
}

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

button,
input {
  font: inherit;
}

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

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

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

.skip-link {
  position: fixed;
  inset-block-start: 12px;
  inset-inline-start: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-160%);
}

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

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

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 100;
  min-height: var(--header-height);
  background: #101213;
  border-bottom: 1px solid var(--line);
  transition: box-shadow 180ms ease, border-color 180ms ease;
}

.site-header.scrolled {
  border-color: var(--line-strong);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.32);
}

.nav-wrapper {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: var(--text);
  text-decoration: none;
}

.brand-logo {
  width: 48px;
  height: 48px;
  border-radius: 11px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 1.08rem;
  font-weight: 900;
}

.brand-text small {
  margin-block-start: 4px;
  color: var(--accent);
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  text-underline-offset: 5px;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.btn,
.lang-btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.btn {
  padding: 13px 22px;
  font-size: 0.94rem;
}

.btn-sm {
  min-height: 44px;
  padding: 10px 16px;
  font-size: 0.84rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-primary:active {
  background: #e8b200;
}

.btn-primary:disabled {
  cursor: not-allowed;
  background: #696557;
  border-color: #696557;
  color: #222;
}

.btn-secondary,
.lang-btn {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}

.btn-secondary:hover,
.lang-btn:hover {
  background: var(--surface-raised);
  border-color: var(--text-muted);
}

.lang-btn {
  min-width: 78px;
  padding: 9px 13px;
  font-size: 0.82rem;
}

.hero-section {
  padding-block: clamp(72px, 9vw, 122px);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(44px, 8vw, 96px);
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.07em;
}

.hero-title {
  max-width: 760px;
  overflow-wrap: anywhere;
  margin: 0;
  font-size: clamp(2.65rem, 6.4vw, 5.25rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.hero-title span {
  display: block;
}

.hero-title .highlight {
  margin-block-start: 10px;
  color: var(--accent);
}

.hero-desc {
  max-width: 690px;
  margin: 28px 0 0;
  color: var(--text-muted);
  font-size: clamp(1.02rem, 1.7vw, 1.2rem);
  line-height: 1.85;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 34px;
}

.release-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  color: var(--text-dim);
  font-size: 0.84rem;
  font-weight: 700;
}

.brand-stage {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(28px, 5vw, 48px);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-block-start: 4px solid var(--accent);
  border-radius: var(--radius-md);
}

.hero-logo {
  width: min(230px, 72%);
  height: auto;
}

.brand-stage-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-block-start: 24px;
}

.brand-stage-copy strong {
  font-size: 1.6rem;
  font-weight: 900;
}

.brand-stage-copy span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.section {
  padding-block: clamp(72px, 9vw, 112px);
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.section-muted {
  background: var(--surface-soft);
  border-block: 1px solid var(--line);
}

.section-header {
  max-width: 760px;
  margin-block-end: 48px;
}

.section-header-inline {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 1.15fr);
  gap: clamp(36px, 7vw, 84px);
  align-items: end;
}

.section-title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.16;
}

.section-desc {
  margin: 18px 0 0;
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.85;
}

.section-header-inline .section-desc {
  margin: 0;
}

.journey-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-block-start: 1px solid var(--line-strong);
}

.journey-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding-block: 28px;
  border-block-end: 1px solid var(--line);
}

.step-index,
.feature-index {
  color: var(--accent);
  font-family: Arial, sans-serif;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.step-index {
  font-size: 1.35rem;
}

.journey-list h3,
.feature-item h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 900;
}

.journey-list p,
.feature-item p {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.dual-tabs {
  display: inline-flex;
  gap: 6px;
  margin-block-end: 36px;
  padding: 5px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.tab-btn {
  min-width: 148px;
  min-height: 46px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 800;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent);
  color: var(--accent-ink);
}

.showcase-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.no-js .dual-tabs {
  display: none;
}

.no-js .showcase-panel + .showcase-panel {
  margin-block-start: 40px;
}

.feature-item {
  padding-block-start: 22px;
  border-block-start: 3px solid var(--line-strong);
}

.feature-item .feature-index {
  display: block;
  margin-block-end: 20px;
  font-size: 0.82rem;
}

.coverage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.8fr);
  gap: clamp(48px, 9vw, 104px);
  align-items: start;
}

.service-facts {
  margin: 0;
  border-block-start: 1px solid var(--line-strong);
}

.service-facts div {
  display: grid;
  grid-template-columns: minmax(110px, 0.35fr) minmax(0, 0.65fr);
  gap: 22px;
  padding-block: 20px;
  border-block-end: 1px solid var(--line);
}

.service-facts dt {
  color: var(--text-dim);
  font-size: 0.82rem;
  font-weight: 800;
}

.service-facts dd {
  margin: 0;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 700;
}

.service-facts a,
.text-link,
.faq-item a {
  color: var(--accent);
  text-underline-offset: 4px;
}

.service-facts a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.service-facts a:hover,
.text-link:hover,
.faq-item a:hover {
  text-decoration-thickness: 2px;
}

.download-section {
  background: var(--bg);
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: clamp(40px, 8vw, 92px);
  padding: clamp(32px, 6vw, 64px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-block-start: 4px solid var(--accent);
  border-radius: var(--radius-md);
}

.release-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
  margin: 34px 0 0;
  border-block-start: 1px solid var(--line-strong);
}

.release-details div {
  padding-block: 18px;
  border-block-end: 1px solid var(--line);
}

.release-details dt {
  color: var(--text-dim);
  font-size: 0.76rem;
  font-weight: 800;
}

.release-details dd {
  margin: 5px 0 0;
  color: var(--text);
  font-family: Arial, sans-serif;
  font-size: 0.96rem;
  font-weight: 800;
  overflow-wrap: anywhere;
  unicode-bidi: plaintext;
}

.download-actions-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-inline-start: clamp(0px, 3vw, 32px);
  border-inline-start: 1px solid var(--line);
}

.install-list {
  margin: 0 0 28px;
  padding-inline-start: 24px;
  color: var(--text-muted);
}

.install-list li {
  padding-inline-start: 8px;
}

.install-list li + li {
  margin-block-start: 13px;
}

.install-list li::marker {
  color: var(--accent);
  font-weight: 900;
}

.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-block-start: 10px;
  font-size: 0.86rem;
  font-weight: 700;
  text-align: center;
}

.download-status,
.modal-status {
  min-height: 1.5em;
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.84rem;
  text-align: center;
}

.faq-list {
  max-width: 900px;
  border-block-start: 1px solid var(--line-strong);
}

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

.faq-item summary {
  min-height: 64px;
  display: flex;
  align-items: center;
  padding: 18px 4px;
  color: var(--text);
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 800;
}

.faq-item[open] summary {
  color: var(--accent);
}

.faq-item p {
  max-width: 760px;
  margin: 0;
  padding: 0 4px 24px;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.site-footer {
  padding-block: 64px 28px;
  background: #0a0c0d;
  border-block-start: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(130px, 0.7fr));
  gap: 44px;
}

.footer-brand p {
  max-width: 360px;
  margin: 18px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-grid h2 {
  margin: 0 0 18px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 900;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a,
.footer-links span {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.86rem;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-block-start: 50px;
  padding-block-start: 24px;
  border-block-start: 1px solid var(--line);
  color: var(--text-dim);
  font-family: Arial, sans-serif;
  font-size: 0.78rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  overflow-y: auto;
  padding: max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
  background: rgba(0, 0, 0, 0.82);
}

.modal-card {
  width: min(100%, 520px);
  padding: clamp(24px, 5vw, 36px);
  background: var(--surface-raised);
  border: 1px solid var(--line-strong);
  border-block-start: 4px solid var(--accent);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.56);
}

.modal-title {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 900;
}

.modal-desc {
  margin: 12px 0 22px;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.consent-checkbox-wrap {
  min-height: 64px;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.consent-checkbox-wrap input {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.consent-checkbox-wrap > span {
  color: var(--text);
  font-size: 0.88rem;
}

.consent-checkbox-wrap a {
  color: var(--accent);
  text-underline-offset: 3px;
}

.modal-status {
  color: var(--danger);
  text-align: start;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-block-start: 14px;
}

.noscript-notice {
  position: fixed;
  inset-inline: 16px;
  inset-block-end: 16px;
  z-index: 900;
  padding: 14px 18px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
}

.noscript-notice a {
  text-decoration-thickness: 2px;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .section-header-inline,
  .coverage-layout,
  .download-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .brand-stage {
    min-height: 340px;
  }

  .hero-logo {
    width: min(190px, 55%);
  }

  .section-header-inline {
    gap: 20px;
  }

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

  .download-actions-panel {
    padding-inline-start: 0;
    padding-block-start: 34px;
    border-inline-start: 0;
    border-block-start: 1px solid var(--line);
  }

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

@media (max-width: 640px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .nav-wrapper {
    gap: 10px;
  }

  .brand-logo {
    width: 42px;
    height: 42px;
    border-radius: 9px;
  }

  .brand-text {
    display: none;
  }

  .nav-actions {
    gap: 7px;
    min-width: 0;
    flex-shrink: 1;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .nav-actions .btn {
    min-height: 44px;
    padding: 10px 12px;
    font-size: 0.78rem;
  }

  .lang-btn {
    min-width: 68px;
    min-height: 44px;
    padding-inline: 10px;
  }

  .hero-section {
    padding-block: 58px 68px;
  }

  .hero-grid {
    gap: 42px;
  }

  .hero-title {
    font-size: clamp(2.35rem, 14vw, 3.45rem);
  }

  .hero-desc {
    margin-block-start: 22px;
    font-size: 1rem;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .release-line {
    gap: 6px;
  }

  .brand-stage {
    min-height: 290px;
  }

  .section {
    padding-block: 68px;
  }

  .section-header {
    margin-block-end: 36px;
  }

  .journey-list li {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
  }

  .dual-tabs {
    width: 100%;
  }

  .tab-btn {
    min-width: 0;
    flex: 1 1 50%;
    padding-inline: 12px;
  }

  .showcase-panel {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .service-facts div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .download-panel {
    padding: 26px 20px;
  }

  .release-details {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .modal-actions {
    flex-direction: column-reverse;
  }

  .modal-actions .btn {
    width: 100%;
  }
}

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

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

@media (prefers-contrast: more) {
  :root {
    --line: #696d6e;
    --line-strong: #989c9d;
    --text-muted: #dfdcd2;
    --text-dim: #c5c2b8;
  }
}

@media (forced-colors: active) {
  .btn,
  .tab-btn,
  .brand-stage,
  .download-panel,
  .modal-card {
    border: 1px solid CanvasText;
  }
}