:root {
  --download-icon-size: 48px;
  --download-platform-icon-size: 52px;
  --download-button-height: 52px;
  --download-rule-size: 1px;
}

.download-hero {
  position: relative;
  padding-top: clamp(64px, 9vw, 118px);
  padding-bottom: clamp(62px, 8vw, 106px);
  overflow: hidden;
  border-bottom: var(--download-rule-size) solid var(--color-border);
}

.download-hero::before {
  position: absolute;
  top: 16%;
  right: -12%;
  width: min(54vw, 760px);
  height: 82%;
  background: radial-gradient(closest-side, var(--color-accent-soft), var(--color-accent-clear));
  content: "";
  pointer-events: none;
}

.download-hero__layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  gap: clamp(42px, 8vw, 110px);
  align-items: center;
}

.download-hero__copy {
  max-width: 680px;
}

.download-hero h1 {
  max-width: 650px;
  margin-bottom: 22px;
}

.download-hero .lede {
  margin-bottom: 0;
}

.download-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}

.download-facts span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 6px 13px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.package-instrument {
  position: relative;
  min-height: 320px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.package-instrument::before,
.package-instrument::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.package-instrument::before {
  inset: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.package-instrument::after {
  top: 50%;
  right: 36px;
  left: 36px;
  height: 1px;
  background: var(--color-border);
}

.package-instrument__rail {
  position: absolute;
  inset: 38px 36px auto;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.package-instrument__core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  display: grid;
  width: min(76%, 280px);
  min-height: 142px;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: 24px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--color-panel-raised), var(--color-panel));
  box-shadow: var(--shadow-soft), inset 0 0 22px var(--color-accent-soft);
  text-align: center;
  transform: translate(-50%, -38%);
}

.package-instrument__core svg {
  width: 26px;
  height: 26px;
  color: var(--color-accent);
  stroke-width: 1.5;
}

.package-instrument__core strong,
.package-instrument__core small {
  font-family: var(--font-mono);
}

.package-instrument__core strong {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.07em;
}

.package-instrument__core small {
  color: var(--color-muted);
  font-size: 10px;
}

.download-selector {
  padding-top: var(--space-section);
}

.download-selector .tab-list {
  position: sticky;
  top: 10px;
  z-index: 20;
  margin-bottom: 38px;
}

.tab-panel {
  grid-column: 1;
  grid-row: 1;
}

.platform-heading {
  display: grid;
  grid-template-columns: var(--download-platform-icon-size) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  margin-bottom: 30px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
}

.platform-heading h2 {
  margin-bottom: 10px;
}

.platform-heading p:last-child {
  max-width: 760px;
  margin-bottom: 0;
}

.platform-heading__icon {
  display: grid;
  width: var(--download-platform-icon-size);
  height: var(--download-platform-icon-size);
  place-items: center;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-md);
  background: var(--color-panel-raised);
  color: var(--color-accent);
  box-shadow: inset 0 0 15px var(--color-accent-soft);
}

.platform-heading__icon svg {
  width: 23px;
  height: 23px;
}

.platform-heading__icon--linux svg {
  width: 27px;
  height: 27px;
}

.client-grid {
  gap: 28px;
}

.client-card {
  padding: clamp(24px, 5vw, 48px);
}

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

.client-card__identity h3 {
  margin-bottom: 3px;
}

.client-card__identity p {
  margin-bottom: 0;
}

.client-summary {
  max-width: 880px;
  margin-top: 25px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.package-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.package-choice {
  display: flex;
  min-height: 340px;
  flex-direction: column;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
}

.package-choice--primary {
  border-color: var(--color-accent-dark);
  background: linear-gradient(180deg, var(--color-panel-raised), var(--color-bg));
  box-shadow: inset 0 0 25px var(--color-accent-soft);
}

.package-choice__label {
  display: inline-flex;
  max-width: 100%;
  min-height: 28px;
  align-items: center;
  padding: 4px 10px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
}

.package-choice h4 {
  margin-top: 17px;
  margin-bottom: 10px;
  font-size: 20px;
}

.package-choice p {
  color: var(--color-muted);
}

.package-choice__file {
  max-width: 100%;
  margin-top: auto;
  margin-bottom: 14px;
  overflow-wrap: anywhere;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.package-download {
  width: 100%;
  min-height: var(--download-button-height);
  border-color: var(--color-accent);
  font-weight: 600;
}

.package-download--primary {
  background: var(--color-accent);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.package-download--primary:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 0 30px var(--color-accent-glow-strong);
}

.package-download--secondary {
  background: var(--color-panel-raised);
  color: var(--color-text);
  box-shadow: inset 0 0 15px var(--color-accent-soft);
}

.architecture-link {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: 13px;
  text-align: center;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

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

.requirements-block {
  margin-top: 40px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
}

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

.requirements-block .callout {
  margin-bottom: 0;
}

.selection-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.selection-step {
  position: relative;
  padding: 34px 26px;
  border-right: 1px solid var(--color-border);
}

.selection-step:last-child {
  border-right: 0;
}

.selection-step__number {
  display: block;
  margin-bottom: 30px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.selection-step h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.selection-step p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.install-checklist {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: install-check;
}

.install-checklist li {
  position: relative;
  min-height: 48px;
  padding: 12px 12px 12px 48px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  counter-increment: install-check;
}

.install-checklist li:last-child {
  border-bottom: 0;
}

.install-checklist li::before {
  position: absolute;
  top: 11px;
  left: 4px;
  display: grid;
  width: 27px;
  height: 27px;
  place-items: center;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  content: counter(install-check);
  font-family: var(--font-mono);
  font-size: 10px;
}

@media (max-width: 920px) {
  .download-hero__layout {
    grid-template-columns: 1fr;
  }

  .package-instrument {
    width: min(100%, 620px);
    min-height: 260px;
  }

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

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

  .selection-step {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .selection-step:last-child {
    border-bottom: 0;
  }

  .selection-step__number {
    margin-bottom: 16px;
  }
}

@media (max-width: 640px) {
  .download-hero {
    padding-top: 46px;
    padding-bottom: 58px;
  }

  .download-hero h1 {
    font-size: clamp(24px, 8vw, 30px);
  }

  .package-instrument {
    min-height: 220px;
  }

  .package-instrument__rail {
    inset: 30px 24px auto;
  }

  .package-instrument__rail span:nth-child(2),
  .package-instrument__rail span:nth-child(3) {
    display: none;
  }

  .package-instrument__core {
    min-height: 124px;
  }

  .platform-heading {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
    padding: 20px;
  }

  .platform-heading__icon {
    width: 42px;
    height: 42px;
  }

  .client-card__head {
    flex-direction: column;
  }

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

  .package-choice-grid {
    gap: 14px;
  }

  .package-choice {
    padding: 20px;
  }

  .requirements-block {
    padding: 20px;
  }

  th,
  td {
    min-width: 150px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .download-hero::before {
    opacity: 1;
  }
}