:root {
  --download-hero-title-size: clamp(30px, 4vw, 48px);
  --download-hero-gap: 72px;
  --download-panel-width: 480px;
  --download-icon-size: 44px;
  --download-package-gap: 18px;
  --download-row-min-height: 82px;
  --download-table-min-width: 680px;
  --download-sequence-size: 46px;
  --download-line-width: 2px;
}

.download-hero {
  overflow: hidden;
  background:
    radial-gradient(900px 580px at 92% 6%, var(--color-accent-a28), var(--color-transparent) 68%),
    radial-gradient(720px 520px at 4% 100%, var(--color-accent-dark-a42), var(--color-transparent) 64%),
    linear-gradient(32deg, var(--color-night), var(--color-panel));
}

.download-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-muted-a09) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-muted-a09) 1px, var(--color-transparent) 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(90deg, var(--color-transparent), var(--color-night), var(--color-transparent));
}

.download-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, var(--download-panel-width));
  align-items: center;
  gap: var(--download-hero-gap);
}

.download-hero-copy {
  min-width: 0;
}

.download-hero h1 {
  max-width: 850px;
  font-size: var(--download-hero-title-size);
  letter-spacing: -0.025em;
  line-height: 1.08;
}

.download-hero-summary {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.9;
}

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

.download-fact-line {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
}

.download-fact-line span {
  max-width: 100%;
  overflow: hidden;
  padding: 6px 10px;
  color: var(--color-cyan);
  background: var(--color-panel-a50);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.package-index {
  min-width: 0;
  padding: 1px;
  background: linear-gradient(140deg, var(--color-accent-dark), var(--color-accent), var(--color-cyan));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep), var(--shadow-glow);
}

.package-index-head,
.package-index-row,
.package-index-note {
  background: var(--color-panel-a96);
}

.package-index-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 18px;
  color: var(--color-text-muted);
  border-radius: 13px 13px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
}

.package-index-row {
  display: grid;
  min-height: var(--download-row-min-height);
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 17px 18px;
  border-top: 1px solid var(--color-border-a60);
}

.package-sequence {
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
}

.package-index-row strong,
.package-index-row small {
  display: block;
}

.package-index-row strong {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 17px;
}

.package-index-row small {
  margin-top: 3px;
  color: var(--color-text-muted);
  font-size: 12px;
}

.package-state {
  padding: 4px 8px;
  color: var(--color-night);
  background: var(--color-lime);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
}

.package-index-note {
  margin-bottom: 0;
  padding: 17px 18px;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border-a60);
  border-radius: 0 0 13px 13px;
  font-size: 12px;
}

.package-index-note code {
  color: var(--color-lime);
  background: var(--color-transparent);
  border: 0;
  padding: 0;
}

.download-section-intro,
.package-notes-intro,
.install-order-intro,
.faq-intro {
  max-width: 790px;
  color: var(--color-ink-muted);
}

.download-tabs {
  margin-top: 34px;
}

.download-tabs .tab-list {
  position: sticky;
  top: 10px;
  z-index: 20;
  box-shadow: var(--shadow-soft);
}

.download-tabs .tab-list [role='tab'] {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.tab-platform-icon {
  display: grid;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  place-items: center;
  color: currentColor;
  background: var(--color-surface-pure);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
}

.tab-list [role='tab'][aria-selected='true'] .tab-platform-icon {
  color: var(--color-code-key);
}

.tab-platform-icon svg {
  width: 15px;
  height: 15px;
}

.platform-heading {
  display: flex;
  align-items: center;
  gap: 17px;
  margin-bottom: 22px;
  padding: 20px 22px;
  background: var(--color-panel-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.platform-heading-icon {
  display: grid;
  width: var(--download-icon-size);
  height: var(--download-icon-size);
  flex-shrink: 0;
  place-items: center;
  color: var(--color-text);
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-dark));
  border-radius: var(--radius-sm);
  box-shadow: 0 9px 22px var(--color-accent-a28);
}

.platform-heading-icon svg {
  width: 21px;
  height: 21px;
}

.platform-heading-icon svg[viewBox='0 0 448 512'] {
  width: 19px;
  height: 23px;
}

.platform-heading h3,
.platform-heading p {
  margin-bottom: 0;
}

.platform-heading p {
  color: var(--color-ink-muted);
}

.client-card {
  overflow: hidden;
}

.client-card > p {
  max-width: 850px;
  color: var(--color-ink-muted);
}

.package-choice {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 310px);
  align-items: center;
  gap: 24px;
  margin-top: var(--download-package-gap);
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.package-choice-primary {
  background: linear-gradient(100deg, var(--color-code-string), var(--color-surface-pure));
  border-color: var(--color-accent);
}

.package-choice-copy {
  min-width: 0;
}

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

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

.package-choice-copy span {
  color: var(--color-ink-muted);
  font-size: 14px;
  line-height: 1.75;
}

.package-download-button {
  width: 100%;
  min-height: 52px;
}

.requirements-block {
  margin-top: 34px;
}

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

.requirements-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  background: var(--color-surface-pure);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  -webkit-overflow-scrolling: touch;
}

.requirements-table-wrap table {
  min-width: var(--download-table-min-width);
}

.requirements-table-wrap td {
  color: var(--color-ink-muted);
}

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

.linux-primary-downloads {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

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

.architecture-alternatives {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-top: 20px;
  padding: 20px;
  background: var(--color-panel-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.architecture-alternatives p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.architecture-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.section-dark .package-notes-intro {
  color: var(--color-text-muted);
}

.section-dark .field-detail {
  color: var(--color-ink);
}

.install-sequence {
  display: grid;
  gap: 0;
  max-width: 930px;
  margin-top: 38px;
  list-style: none;
  counter-reset: install-step;
}

.install-sequence li {
  position: relative;
  display: grid;
  grid-template-columns: var(--download-sequence-size) minmax(0, 1fr);
  gap: 22px;
  counter-increment: install-step;
}

.install-sequence li::before {
  content: counter(install-step, decimal-leading-zero);
  position: relative;
  z-index: 2;
  display: grid;
  width: var(--download-sequence-size);
  height: var(--download-sequence-size);
  place-items: center;
  color: var(--color-text);
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-dark));
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 24px var(--color-accent-a20);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.install-sequence li:not(:last-child)::after {
  content: '';
  position: absolute;
  top: var(--download-sequence-size);
  bottom: 0;
  left: calc((var(--download-sequence-size) - var(--download-line-width)) / 2);
  width: var(--download-line-width);
  background: linear-gradient(var(--color-accent), var(--color-cyan));
}

.install-sequence-copy {
  padding-bottom: 34px;
}

.install-sequence-copy h3 {
  margin-top: 7px;
}

.install-sequence-copy p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.download-explainer {
  background: var(--color-panel-raised);
}

.selection-ledger {
  margin-top: 36px;
  background: var(--color-surface-pure);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.selection-ledger-row {
  display: grid;
  grid-template-columns: minmax(190px, 0.34fr) minmax(0, 1fr);
  gap: 34px;
  padding: 30px;
}

.selection-ledger-row + .selection-ledger-row {
  border-top: 1px solid var(--color-border);
}

.selection-ledger-name span {
  display: block;
  margin-bottom: 8px;
  color: var(--color-code-key);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.selection-ledger-name h3 {
  margin-bottom: 0;
}

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

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

.download-followups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 46px;
}

.download-followups .card {
  display: flex;
  flex-direction: column;
}

.download-followups .card p {
  color: var(--color-ink-muted);
}

.download-followups .article-more {
  margin-top: auto;
}

.download-followups-key {
  margin-bottom: 13px;
  color: var(--color-code-key);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.callout a {
  color: var(--color-code-key);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 1040px) {
  .download-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .package-index {
    width: min(100%, 620px);
  }

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

@media (max-width: 820px) {
  .package-choice,
  .architecture-alternatives {
    grid-template-columns: minmax(0, 1fr);
  }

  .architecture-actions {
    justify-content: flex-start;
  }

  .architecture-actions .button {
    flex: 1 1 220px;
  }

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

  .selection-ledger-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 15px;
  }
}

@media (max-width: 700px) {
  .download-tabs .tab-list {
    position: static;
  }

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

  .platform-heading {
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  .download-hero h1 {
    letter-spacing: -0.01em;
  }

  .download-hero .hero-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .download-hero .hero-actions .button {
    width: 100%;
  }

  .package-index-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .package-state {
    grid-column: 2;
    justify-self: start;
  }

  .platform-heading {
    padding: 16px;
  }

  .platform-heading-icon {
    width: 38px;
    height: 38px;
  }

  .package-choice {
    padding: 16px;
  }

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

  .install-sequence li {
    gap: 14px;
  }

  .selection-ledger-row {
    padding: 22px 18px;
  }

  .architecture-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .architecture-actions .button {
    width: 100%;
  }
}