:root {
  --download-grid-line: rgba(35, 85, 85, 0.34);
  --download-accent-haze: rgba(255, 111, 165, 0.16);
  --download-success-haze: rgba(29, 209, 161, 0.12);
  --download-violet-haze: rgba(185, 140, 255, 0.13);
  --download-panel-deep: rgba(2, 14, 14, 0.24);
  --download-accent-strong: rgba(255, 111, 165, 0.34);
  --download-success-strong: rgba(29, 209, 161, 0.3);
  --download-violet-strong: rgba(185, 140, 255, 0.3);
}

.download-hero {
  position: relative;
  min-height: 680px;
  padding-top: 88px;
  padding-bottom: 96px;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.download-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--download-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--download-grid-line) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, transparent, var(--color-bg) 22%, var(--color-bg) 72%, transparent);
  opacity: 0.7;
  content: "";
  pointer-events: none;
}

.download-hero::after {
  position: absolute;
  top: 8%;
  right: -10%;
  width: 54%;
  height: 76%;
  background:
    radial-gradient(circle at 35% 34%, var(--download-accent-haze), transparent 42%),
    radial-gradient(circle at 72% 68%, var(--download-success-haze), transparent 45%);
  content: "";
  pointer-events: none;
}

.download-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 0.8fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: center;
}

.download-hero-copy {
  max-width: 690px;
}

.download-hero-copy .badge {
  margin-bottom: 26px;
}

.download-hero-copy h1 {
  max-width: 680px;
  font-size: clamp(36px, 4.2vw, 48px);
}

.download-lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--color-text-muted);
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  margin-bottom: 30px;
  gap: 12px;
  flex-wrap: wrap;
}

.download-notes {
  display: flex;
  gap: 12px 22px;
  flex-wrap: wrap;
  color: var(--color-text-muted);
  font-size: 13px;
}

.download-notes li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.package-index {
  position: relative;
  border: 1px solid var(--color-success);
  border-radius: var(--radius);
  background: var(--color-panel-glass);
  box-shadow: var(--shadow-success), var(--shadow-float);
}

.package-index::before {
  position: absolute;
  right: -28px;
  bottom: -28px;
  width: 66%;
  height: 42%;
  z-index: -1;
  background-image: radial-gradient(circle, var(--color-accent) 1.5px, transparent 1.7px);
  background-size: 10px 10px;
  mask-image: linear-gradient(90deg, transparent, var(--color-bg));
  transform: skewY(-7deg);
  content: "";
}

.package-index .window-chrome {
  margin: 0;
}

.package-steps {
  display: grid;
  margin: 0;
  padding: 30px;
  gap: 0;
  list-style: none;
}

.package-steps li {
  position: relative;
  display: grid;
  padding-bottom: 28px;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
}

.package-steps li:last-child {
  padding-bottom: 0;
}

.package-steps li:not(:last-child)::after {
  position: absolute;
  top: 36px;
  bottom: 6px;
  left: 17px;
  border-left: 1px dashed var(--color-border);
  content: "";
}

.package-step-number {
  display: inline-flex;
  width: 35px;
  height: 35px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-bg);
  color: var(--color-success);
  font-family: var(--font-mono);
  font-size: 11px;
}

.package-steps strong {
  display: block;
  margin-bottom: 4px;
}

.package-steps p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

.package-facts {
  display: flex;
  padding: 16px 20px;
  gap: 10px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
}

.package-facts span {
  display: inline-flex;
  min-height: 30px;
  padding: 5px 9px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.package-facts b {
  color: var(--color-lilac);
  font-weight: 400;
}

.download-tabs {
  align-items: start;
}

.download-tabs > .tab-list {
  grid-column: 1;
  grid-row: 1;
}

.download-tabs > .tab-panel {
  grid-column: 2;
  grid-row: 1;
}

.download-tabs .tab-list {
  position: sticky;
  top: 20px;
}

.download-tabs .tab-list [role="tab"] {
  min-height: 70px;
}

.platform-tab-icon {
  display: inline-flex;
  width: 35px;
  height: 35px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-bg);
  color: var(--color-text-muted);
}

.platform-tab-icon svg {
  width: 18px;
  height: 18px;
}

.download-tabs [role="tab"][aria-selected="true"] .platform-tab-icon {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 20px var(--download-accent-haze);
}

.download-tabs [role="tab"] > span:last-child {
  display: grid;
  gap: 1px;
}

.download-tabs [role="tab"] small {
  font-size: 11px;
  font-weight: 400;
}

.download-panel {
  padding-bottom: clamp(26px, 4vw, 40px);
}

.platform-panel-intro {
  display: grid;
  margin-bottom: 28px;
  grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1fr);
  gap: 28px;
  align-items: end;
}

.platform-panel-intro h2 {
  margin-top: 13px;
  margin-bottom: 0;
  font-size: clamp(27px, 3vw, 38px);
}

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

.single-client-grid {
  grid-template-columns: minmax(0, 1fr);
}

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

.featured-client-card {
  border-color: var(--download-accent-strong);
  box-shadow: var(--shadow-accent), var(--shadow-soft);
}

.client-identity {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 15px;
}

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

.client-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.client-name-row h3 {
  margin-bottom: 0;
}

.download-card > p {
  color: var(--color-text-muted);
}

.package-choice-grid {
  display: grid;
  margin-top: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.package-choice,
.mobile-package-main,
.mobile-package-secondary,
.linux-package-column {
  display: flex;
  min-width: 0;
  padding: 20px;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--download-panel-deep);
}

.package-choice.is-main,
.mobile-package-main {
  border-color: var(--download-accent-strong);
  background: var(--color-accent-soft);
}

.package-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.package-choice h4,
.mobile-package-main h4,
.mobile-package-secondary h4,
.linux-package-column h4 {
  margin-bottom: 7px;
}

.package-choice p,
.mobile-package-main p,
.mobile-package-secondary p,
.linux-package-column p {
  margin-bottom: 18px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.package-download-primary,
.package-download-secondary {
  width: 100%;
  margin-top: auto;
}

.package-download-primary {
  min-height: 52px;
}

.package-download-secondary {
  min-height: 48px;
}

.mobile-package-list {
  display: grid;
  margin-top: auto;
  padding-top: 8px;
  gap: 12px;
}

.mobile-package-main,
.mobile-package-secondary {
  min-height: 216px;
}

.requirements-block {
  margin-top: 28px;
}

.requirements-block h3 {
  font-size: 23px;
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.requirements-block .data-table {
  min-width: 650px;
  font-size: 14px;
}

.download-panel > .callout {
  margin-top: 24px;
}

.linux-package-grid {
  display: grid;
  margin-top: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.linux-package-column:first-child {
  border-color: var(--download-accent-strong);
  background: var(--color-accent-soft);
}

.architecture-link {
  display: inline-flex;
  min-height: 42px;
  margin-top: 10px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  text-decoration: none;
}

.architecture-link:hover {
  border-color: var(--color-accent);
  background: var(--color-panel-raised);
  color: var(--color-accent);
}

.install-flow-section {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.install-flow {
  display: grid;
  border-top: 1px solid var(--color-border);
}

.install-flow li {
  display: grid;
  padding-top: 30px;
  padding-bottom: 30px;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 22px;
  border-bottom: 1px solid var(--color-border);
}

.flow-number {
  display: inline-flex;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  box-shadow: 0 0 24px var(--download-accent-haze);
}

.install-flow h3 {
  margin-bottom: 8px;
}

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

.install-guide-link {
  margin-top: 34px;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.reference-block {
  position: relative;
  min-height: 100%;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.reference-block::after {
  position: absolute;
  right: -36px;
  bottom: -36px;
  width: 110px;
  height: 110px;
  border: 1px solid var(--download-accent-strong);
  border-radius: var(--radius-round);
  content: "";
}

.reference-block.is-success::after {
  border-color: var(--download-success-strong);
}

.reference-block.is-violet::after {
  border-color: var(--download-violet-strong);
}

.reference-marker {
  display: block;
  width: 42px;
  height: 3px;
  margin-bottom: 24px;
  background: var(--color-accent);
}

.reference-block.is-success .reference-marker {
  background: var(--color-success);
}

.reference-block.is-violet .reference-marker {
  background: var(--color-violet);
}

.reference-block h3 {
  position: relative;
  z-index: 1;
  font-size: 23px;
}

.reference-block p {
  position: relative;
  z-index: 1;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.protocol-strip {
  display: flex;
  margin-top: 22px;
  padding: 16px;
  gap: 10px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-image: radial-gradient(circle, var(--download-accent-strong) 1px, transparent 1.2px);
  background-size: 12px 12px;
  scrollbar-width: thin;
}

.protocol-strip span {
  display: inline-flex;
  min-width: max-content;
  min-height: 34px;
  padding: 6px 12px;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
}

.faq-section {
  border-top: 1px solid var(--color-border);
}

.dl-fab path {
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 1080px) {
  .download-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.72fr);
    gap: 48px;
  }

  .android-client-grid,
  .reference-grid {
    grid-template-columns: 1fr;
  }

  .mobile-package-main,
  .mobile-package-secondary {
    min-height: 0;
  }
}

@media (max-width: 900px) {
  .download-hero {
    min-height: auto;
    padding-top: 72px;
    padding-bottom: 78px;
  }

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

  .package-index {
    max-width: 680px;
  }

  .platform-panel-intro {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

@media (max-width: 768px) {
  .download-hero-copy h1 {
    font-size: clamp(26px, 7.4vw, 30px);
  }

  .download-tabs > .tab-list {
    grid-column: 1;
    grid-row: 1;
  }

  .download-tabs > .tab-panel {
    grid-column: 1;
    grid-row: 2;
  }

  .download-tabs .tab-list {
    position: static;
  }

  .download-tabs .tab-list [role="tab"] {
    min-height: 58px;
  }

  .platform-tab-icon {
    width: 30px;
    height: 30px;
  }

  .platform-tab-icon svg {
    width: 16px;
    height: 16px;
  }

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

@media (max-width: 640px) {
  .download-hero {
    padding-top: 54px;
    padding-bottom: 64px;
  }

  .download-hero::before {
    background-size: 38px 38px;
  }

  .download-hero-grid {
    gap: 42px;
  }

  .download-lead {
    font-size: 16px;
  }

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

  .hero-actions .button-primary,
  .hero-actions .button-secondary {
    width: 100%;
  }

  .download-notes {
    display: grid;
    gap: 10px;
  }

  .package-index::before {
    right: -12px;
    bottom: -20px;
  }

  .package-steps {
    padding: 22px 18px;
  }

  .package-steps li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .package-facts {
    padding: 14px;
  }

  .download-panel {
    padding: 20px;
  }

  .download-panel .window-chrome {
    margin: -20px -20px 24px;
  }

  .client-identity {
    align-items: flex-start;
  }

  .client-logo {
    width: 48px;
    height: 48px;
  }

  .package-choice,
  .mobile-package-main,
  .mobile-package-secondary,
  .linux-package-column {
    padding: 17px;
  }

  .install-flow li {
    padding-top: 24px;
    padding-bottom: 24px;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .flow-number {
    width: 40px;
    height: 40px;
  }

  .reference-block {
    padding: 22px;
  }
}

@media (max-width: 380px) {
  .package-steps {
    padding-right: 14px;
    padding-left: 14px;
  }

  .download-panel {
    padding: 16px;
  }

  .download-panel .window-chrome {
    margin: -16px -16px 22px;
  }

  .client-identity {
    gap: 11px;
  }

  .client-name-row {
    gap: 6px;
  }

  .package-choice,
  .mobile-package-main,
  .mobile-package-secondary,
  .linux-package-column {
    padding: 15px;
  }
}