.download-hero {
  position: relative;
  min-height: 610px;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 70px);
  padding-bottom: 88px;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--color-accent-14);
  background:
    radial-gradient(circle at 78% 54%, var(--color-accent-18), var(--color-transparent) 20%),
    linear-gradient(135deg, var(--color-bg) 12%, var(--color-bg-panel) 62%, var(--color-bg));
}

.download-hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background: repeating-linear-gradient(
    0deg,
    var(--color-transparent) 0,
    var(--color-transparent) 5px,
    var(--color-accent-03) 6px
  );
  pointer-events: none;
}

.download-hero::after {
  position: absolute;
  z-index: -1;
  top: 13%;
  right: -9%;
  width: 58%;
  height: 74%;
  content: "";
  border: 1px solid var(--color-accent-18);
  clip-path: polygon(0 0, 100% 16%, 72% 100%, 24% 84%);
  background: linear-gradient(145deg, var(--color-accent-08), var(--color-transparent));
  transform: skewX(-9deg);
  pointer-events: none;
}

.download-hero-grid {
  position: absolute;
  z-index: -1;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.download-hero-grid::before,
.download-hero-grid::after {
  position: absolute;
  content: "";
  background: var(--color-accent-14);
  box-shadow: var(--shadow-glow);
  transform-origin: right center;
}

.download-hero-grid::before {
  top: 22%;
  right: 7%;
  width: 64%;
  height: 1px;
  transform: rotate(-12deg);
}

.download-hero-grid::after {
  right: 11%;
  bottom: 21%;
  width: 52%;
  height: 1px;
  transform: rotate(14deg);
}

.download-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.7fr);
  align-items: center;
  gap: clamp(42px, 8vw, 112px);
}

.download-hero-copy {
  max-width: 760px;
}

.download-hero-copy h1 {
  max-width: 760px;
  font-size: clamp(48px, 5.5vw, 72px);
  text-shadow: 0 16px 48px var(--color-blackout);
}

.download-hero-lead {
  max-width: 700px;
  margin-bottom: 28px;
  color: var(--color-text-muted);
  font-size: clamp(16px, 1.7vw, 19px);
}

.download-route {
  position: relative;
  padding: 30px;
  background:
    linear-gradient(135deg, var(--color-accent-10), var(--color-transparent)),
    var(--color-panel-deep);
}

.download-route::before {
  position: absolute;
  top: 29px;
  bottom: 31px;
  left: 54px;
  width: 1px;
  content: "";
  border-left: 1px dashed var(--color-accent-36);
}

.download-route-label {
  display: block;
  margin-bottom: 24px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.download-route-list {
  position: relative;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 25px;
  list-style: none;
}

.download-route-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
}

.download-route-number {
  position: relative;
  z-index: 1;
  width: 48px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-accent-36);
  background: var(--color-bg-panel);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
}

.download-route-list strong {
  display: block;
  margin-bottom: 3px;
  font-size: 14px;
}

.download-route-list p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.65;
}

.download-selector {
  background:
    linear-gradient(180deg, var(--color-accent-03), var(--color-transparent) 22%),
    var(--color-bg);
}

.download-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.55fr);
  align-items: end;
  gap: 44px;
  margin-bottom: 42px;
}

.download-section-heading h2,
.download-section-heading p {
  margin-bottom: 0;
}

.platform-intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
  margin-bottom: 22px;
  padding: 27px 0;
  border-bottom: 1px solid var(--color-accent-14);
}

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

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

.platform-code {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.download-card {
  margin-top: 18px;
}

.download-card-title .chip-row {
  margin-bottom: 12px;
}

.download-card > .muted {
  max-width: 1000px;
  margin-top: 20px;
}

.package-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.package-choice {
  min-width: 0;
  padding: 18px;
  background: var(--color-panel-deep);
}

.package-choice-label {
  display: block;
  margin-bottom: 7px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.11em;
}

.package-choice strong {
  display: block;
  margin-bottom: 5px;
  font-size: 15px;
}

.package-choice p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

.android-card-stack {
  display: grid;
  gap: 24px;
}

.requirements-block {
  margin-top: 34px;
  border-top: 1px solid var(--color-accent-24);
}

.requirements-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-top: 26px;
  padding-bottom: 18px;
}

.requirements-heading span {
  color: var(--color-accent);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.requirements-heading h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.architecture-secondary {
  margin-top: 24px;
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-left: 2px solid var(--color-accent);
  background: var(--color-accent-05);
}

.architecture-secondary > div:first-child {
  max-width: 540px;
}

.architecture-secondary .mono {
  display: block;
  margin-bottom: 5px;
  color: var(--color-accent);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.architecture-secondary strong {
  display: block;
}

.architecture-secondary p {
  margin-top: 4px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

.architecture-secondary .download-actions {
  margin-top: 0;
  flex-shrink: 0;
}

.installation-flow {
  border-top: 1px solid var(--color-accent-10);
  border-bottom: 1px solid var(--color-accent-10);
  background:
    linear-gradient(115deg, var(--color-accent-05), var(--color-transparent) 42%),
    var(--color-bg-panel);
}

.flow-heading {
  max-width: 820px;
  margin-bottom: 52px;
}

.flow-slices {
  position: relative;
  margin: 0;
  padding: 0;
  display: grid;
  list-style: none;
}

.flow-slices::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37px;
  width: 1px;
  content: "";
  background: linear-gradient(
    180deg,
    var(--color-accent),
    var(--color-accent-18),
    var(--color-transparent)
  );
  box-shadow: var(--shadow-glow);
}

.flow-slice {
  position: relative;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: clamp(22px, 5vw, 64px);
  padding-top: 28px;
  padding-bottom: 34px;
  border-top: 1px solid var(--color-accent-14);
}

.flow-index {
  position: relative;
  z-index: 1;
  width: 76px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-accent-36);
  background: var(--color-bg-panel);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  box-shadow: var(--shadow-glow);
}

.flow-copy {
  max-width: 930px;
}

.flow-copy .mono {
  display: block;
  margin-bottom: 6px;
  color: var(--color-accent);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.flow-copy h3 {
  margin-bottom: 10px;
}

.flow-copy p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.flow-action {
  margin-top: 36px;
  padding-left: 140px;
}

.choice-guide {
  background:
    radial-gradient(circle at 15% 38%, var(--color-accent-08), var(--color-transparent) 28%),
    var(--color-bg);
}

.choice-guide-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr);
  gap: clamp(44px, 8vw, 110px);
  align-items: start;
}

.choice-guide-intro {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.choice-guide-slices {
  display: grid;
  border-top: 1px solid var(--color-accent-24);
}

.choice-slice {
  padding-top: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--color-accent-14);
}

.choice-slice-head {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
}

.choice-number {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-accent-36);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.choice-slice h3 {
  margin-bottom: 0;
}

.choice-slice p {
  margin: 14px 0 0 58px;
  color: var(--color-text-muted);
}

.download-faq {
  border-top: 1px solid var(--color-accent-10);
  background:
    linear-gradient(180deg, var(--color-bg-panel), var(--color-bg));
}

.faq-heading {
  max-width: 830px;
  margin-bottom: 40px;
}

@media (max-width: 1000px) {
  .download-hero-layout {
    grid-template-columns: 1fr;
  }

  .download-hero-copy {
    max-width: 820px;
  }

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

  .download-section-heading,
  .platform-intro,
  .choice-guide-layout {
    grid-template-columns: 1fr;
  }

  .choice-guide-intro {
    position: static;
  }
}

@media (max-width: 760px) {
  .download-hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 54px);
    padding-bottom: 68px;
  }

  .download-hero::after {
    top: 5%;
    right: -42%;
    width: 100%;
  }

  .download-hero-layout {
    gap: 34px;
  }

  .download-section-heading {
    gap: 20px;
  }

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

  .architecture-secondary {
    align-items: stretch;
    flex-direction: column;
  }

  .architecture-secondary .download-actions {
    width: 100%;
  }

  .flow-action {
    padding-left: 0;
  }
}

@media (max-width: 640px) {
  .download-hero-copy h1 {
    font-size: clamp(36px, 11vw, 48px);
  }

  .download-route {
    padding: 22px 18px;
  }

  .download-route::before {
    left: 42px;
  }

  .download-route-list li {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 11px;
  }

  .download-route-number {
    width: 38px;
  }

  .platform-intro {
    padding-top: 22px;
    padding-bottom: 22px;
  }

  .requirements-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .flow-slices::before {
    left: 23px;
  }

  .flow-slice {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 15px;
  }

  .flow-index {
    width: 48px;
    height: 38px;
  }

  .choice-slice-head {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .choice-number {
    width: 36px;
    height: 36px;
  }

  .choice-slice p {
    margin-left: 0;
  }
}