.download-hero {
  position: relative;
  padding-top: clamp(54px, 8vw, 96px);
  padding-bottom: clamp(62px, 9vw, 108px);
  border-bottom: 1px solid var(--color-border);
  overflow: clip;
}

.download-hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(720px 460px at 82% 14%, var(--color-sky-glow), transparent 64%),
    radial-gradient(680px 420px at 62% 38%, var(--color-mint-glow), transparent 68%);
  opacity: 0.74;
  pointer-events: none;
}

.download-hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.72fr);
  align-items: center;
  gap: clamp(38px, 7vw, 88px);
}

.download-hero-copy {
  max-width: 700px;
}

.download-hero-copy h1 {
  max-width: 14em;
}

.download-hero-lead {
  max-width: 42em;
  margin-bottom: 25px;
  color: var(--color-ink-muted);
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.8;
}

.download-hero-lead strong {
  color: var(--color-ink);
  font-weight: 700;
}

.download-route {
  position: relative;
  padding: clamp(24px, 4vw, 34px);
}

.download-route::before {
  position: absolute;
  top: 24px;
  bottom: 30px;
  left: 53px;
  width: 1px;
  background: var(--color-accent-line);
  content: "";
}

.download-route-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.download-route-kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.download-route-state {
  padding: 5px 10px;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-size: 12px;
  font-weight: 700;
}

.download-route-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 19px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.download-route-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
}

.route-index {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.download-route-list strong,
.download-route-list span {
  display: block;
}

.download-route-list strong {
  margin-bottom: 2px;
  font-size: 15px;
}

.download-route-list div > span {
  color: var(--color-ink-muted);
  font-size: 13px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-heading > p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
  font-size: 17px;
}

.download-tabs .tab-list {
  position: sticky;
  top: 12px;
  z-index: 30;
  margin-bottom: 34px;
}

.download-tabs .tab-button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.download-tabs .tab-button svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.platform-panel {
  grid-column: 1;
  min-width: 0;
}

.platform-intro {
  display: grid;
  grid-template-columns: minmax(250px, 0.62fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 64px);
  margin-bottom: 28px;
  padding-bottom: 27px;
  border-bottom: 1px solid var(--color-border);
}

.platform-intro h3 {
  margin-bottom: 0;
}

.platform-intro p {
  margin: 0;
  color: var(--color-ink-muted);
}

.platform-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.download-client-card {
  grid-template-columns: 56px minmax(0, 1fr);
  padding: clamp(22px, 4vw, 36px);
}

.download-client-card + .download-client-card {
  margin-top: 22px;
}

.download-client-card .client-logo {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.download-client-card .client-card-head {
  min-height: 52px;
  align-content: center;
}

.download-client-card .client-card-main > p {
  max-width: 62em;
  color: var(--color-ink-muted);
}

.download-client-card .client-version {
  margin-left: auto;
  padding: 5px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface-soft);
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 25px;
}

.package-choice {
  display: flex;
  min-height: 190px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  flex-direction: column;
}

.package-choice-primary {
  border-color: var(--color-accent-line);
  background: var(--color-accent-soft);
}

.package-copy {
  display: block;
  margin-bottom: 19px;
}

.package-copy strong,
.package-copy span {
  display: block;
}

.package-copy strong {
  margin-bottom: 6px;
  color: var(--color-ink);
  font-size: 17px;
}

.package-copy span {
  color: var(--color-ink-muted);
  font-size: 14px;
  line-height: 1.65;
}

.package-button {
  width: 100%;
  min-height: 52px;
  margin-top: auto;
}

.requirements-block {
  margin-top: 40px;
}

.requirements-block h3 {
  font-size: 22px;
}

.requirements-block .data-table {
  min-width: 640px;
}

.android-client-stack {
  display: grid;
  gap: 22px;
}

.architecture-links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 18px;
  padding: 18px 20px;
  border: 1px dashed var(--color-accent-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.architecture-links strong,
.architecture-links span {
  display: block;
}

.architecture-links span {
  margin-top: 3px;
  color: var(--color-ink-muted);
  font-size: 13px;
}

.architecture-actions {
  display: flex;
  flex-shrink: 0;
  flex-wrap: wrap;
  gap: 9px;
}

.install-sequence {
  display: grid;
  gap: 1px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-border);
  box-shadow: var(--shadow-card);
  overflow: clip;
}

.install-step {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 34px);
  padding: clamp(24px, 4vw, 38px);
  background: var(--color-surface);
}

.install-step-number {
  display: inline-flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-weight: 800;
}

.install-step h3 {
  margin-bottom: 10px;
}

.install-step p {
  color: var(--color-ink-muted);
}

.install-step p:last-child {
  margin-bottom: 0;
}

.install-callout {
  margin-top: 28px;
  margin-bottom: 0;
}

.install-callout a {
  font-weight: 700;
}

.selection-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.selection-note {
  padding: 26px;
  border-top: 3px solid var(--color-accent);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.selection-note-key {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-size: 12px;
  font-weight: 750;
}

.selection-note h3 {
  font-size: 21px;
}

.selection-note p {
  margin: 0;
  color: var(--color-ink-muted);
}

.maintenance-panel {
  display: grid;
  grid-template-columns: minmax(240px, 0.68fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 72px);
  margin-top: 28px;
}

.maintenance-panel h2 {
  margin-bottom: 0;
  font-size: clamp(25px, 3vw, 34px);
}

.maintenance-copy p {
  color: var(--color-ink-muted);
}

.maintenance-copy p:last-child {
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .download-hero-layout {
    grid-template-columns: 1fr;
  }

  .download-route {
    max-width: 720px;
  }

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

  .maintenance-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .download-hero {
    padding-top: 44px;
    padding-bottom: 60px;
  }

  .download-hero-layout {
    gap: 30px;
  }

  .platform-intro {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .download-client-card {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .download-client-card .client-version {
    width: max-content;
    max-width: 100%;
    margin-left: 0;
  }

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

  .package-choice {
    min-height: 0;
  }

  .architecture-links {
    align-items: flex-start;
    flex-direction: column;
  }

  .architecture-actions {
    width: 100%;
  }

  .architecture-actions .button {
    flex: 1 1 140px;
  }
}

@media (max-width: 540px) {
  .download-route::before {
    left: 43px;
  }

  .download-route-list li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 11px;
  }

  .route-index {
    width: 36px;
    height: 36px;
  }

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

  .download-client-card .client-card-head {
    min-height: 0;
  }

  .install-step {
    grid-template-columns: 1fr;
  }

  .install-step-number {
    width: 42px;
    height: 42px;
  }

  .package-choice {
    padding: 17px;
  }
}