:root {
  --download-icon-size: 48px;
  --download-button-height: 52px;
  --download-copy-width: 690px;
  --download-tab-icon-size: 17px;
}

.download-intro {
  padding-top: clamp(54px, 7vw, 88px);
  padding-bottom: clamp(54px, 7vw, 88px);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.download-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  align-items: center;
  gap: clamp(34px, 7vw, 82px);
}

.download-intro-copy {
  max-width: var(--download-copy-width);
}

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

.download-lead {
  max-width: 43em;
  margin-bottom: 24px;
  color: var(--color-text-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.75;
}

.download-lead strong {
  color: var(--color-text);
}

.intro-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.intro-facts span {
  display: inline-flex;
  min-height: 32px;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.intro-facts span::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.selection-brief {
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.selection-brief h2 {
  margin-bottom: 16px;
  font-size: 25px;
}

.selection-brief ol {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  padding-left: 1.4em;
}

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

.download-workspace {
  background: var(--color-canvas);
}

.download-tabs {
  min-width: 0;
}

.platform-tab-list {
  position: sticky;
  top: 10px;
  z-index: 6;
  box-shadow: var(--shadow-card);
}

.platform-tab-list [role="tab"] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.platform-tab-list [role="tab"] svg {
  width: var(--download-tab-icon-size);
  height: var(--download-tab-icon-size);
  flex-shrink: 0;
}

.download-tabs .tab-panel {
  grid-column: 1;
  grid-row: 2;
  padding-top: 42px;
}

.platform-panel-head {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  align-items: end;
  gap: 30px;
  margin-bottom: 24px;
}

.platform-panel-head h3 {
  margin-bottom: 0;
  font-size: clamp(24px, 3vw, 31px);
}

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

.client-package-card {
  overflow: hidden;
}

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

.download-card-head img {
  width: var(--download-icon-size);
  height: var(--download-icon-size);
  flex-shrink: 0;
}

.package-heading-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
}

.package-version {
  display: inline-flex;
  min-height: 26px;
  max-width: 100%;
  align-items: center;
  padding: 4px 9px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.2;
}

.download-card-copy h3 {
  margin-bottom: 9px;
  font-size: clamp(23px, 2.7vw, 29px);
}

.download-card-copy p {
  max-width: 59em;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.package-choice-grid,
.linux-primary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.package-choice {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
}

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

.package-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.package-kicker::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.package-choice h4 {
  margin-bottom: 7px;
  font-size: 18px;
}

.package-choice p {
  flex: 1;
  margin-bottom: 18px;
  color: var(--color-text-muted);
}

.package-main-button,
.package-alt-button {
  width: 100%;
  min-height: var(--download-button-height);
}

.package-main-button {
  font-size: 15px;
}

.package-alt-button {
  border-color: var(--color-accent);
  background: var(--color-canvas);
}

.requirements-block {
  margin-top: 36px;
}

.requirements-block h3 {
  margin-bottom: 16px;
  font-size: 22px;
}

.requirements-block + .callout,
.client-package-card + .requirements-block + .callout {
  margin-top: 24px;
}

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

.linux-arm-options {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-top: 16px;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
}

.linux-arm-options h4 {
  margin-bottom: 6px;
}

.linux-arm-options p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.linux-arm-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 9px;
}

.install-sequence {
  border-top: 1px solid var(--color-line);
}

.install-step {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: clamp(20px, 4vw, 42px);
  padding-top: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--color-line);
}

.install-index {
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
}

.install-step h3 {
  margin-bottom: 9px;
}

.install-step p {
  max-width: 68em;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.download-safety-note {
  margin-top: 34px;
}

.client-notes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.client-note {
  border-top: 3px solid var(--color-accent);
}

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

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

.end-download-card h2 {
  margin-bottom: 7px;
  font-size: 23px;
}

@media (max-width: 900px) {
  .download-intro-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .selection-brief {
    max-width: 680px;
  }

  .platform-panel-head {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
    gap: 12px;
  }

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

  .linux-arm-options {
    grid-template-columns: minmax(0, 1fr);
  }

  .linux-arm-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .download-intro {
    padding-top: 48px;
    padding-bottom: 56px;
  }

  .download-intro-copy h1 {
    font-size: clamp(24px, 7.5vw, 30px);
  }

  .package-choice-grid,
  .linux-primary-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .platform-tab-list {
    top: 6px;
  }

  .download-tabs .tab-panel {
    padding-top: 32px;
  }
}

@media (max-width: 640px) {
  .download-lead {
    font-size: 16px;
  }

  .intro-facts {
    align-items: flex-start;
  }

  .platform-tab-list [role="tab"] {
    padding-inline: 12px;
  }

  .download-card-head {
    align-items: flex-start;
  }

  .package-choice {
    padding: 18px;
  }

  .linux-arm-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .linux-arm-actions .button {
    width: 100%;
  }

  .install-step {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
}