.download-hero {
  padding-top: clamp(54px, 8vw, 92px);
  padding-bottom: clamp(54px, 8vw, 88px);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 28px 28px;
}

.download-hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, .75fr);
  gap: clamp(30px, 7vw, 92px);
  align-items: center;
}

.download-hero__copy {
  max-width: 760px;
}

.download-hero h1 {
  max-width: 720px;
  margin-top: 18px;
  margin-bottom: 18px;
  font-size: clamp(36px, 4vw, 48px);
}

.download-hero__lede {
  max-width: 700px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.75;
}

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

.download-hero__facts {
  margin-top: 24px;
}

.download-check {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 34px);
}

.download-check::after {
  content: "";
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 110px;
  height: 110px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  box-shadow:
    0 0 0 16px var(--color-panel),
    0 0 0 17px var(--color-border);
  opacity: .3;
  pointer-events: none;
}

.download-check__label,
.platform-intro__code,
.core-notes__index,
.selection-card__key {
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .08em;
}

.download-check h2 {
  margin-top: 8px;
  margin-bottom: 22px;
  font-size: 25px;
}

.download-check ol {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: download-check;
}

.download-check li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  column-gap: 10px;
  counter-increment: download-check;
}

.download-check li::before {
  content: counter(download-check, decimal-leading-zero);
  grid-row: 1 / span 2;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.download-check li strong,
.download-check li span {
  display: block;
}

.download-check li span {
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 13px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading--wide {
  max-width: 900px;
}

.section-heading h2 {
  margin-top: 14px;
}

.section-heading p {
  color: var(--color-muted);
  font-size: 16px;
}

.download-tabs {
  display: grid;
  gap: 24px;
}

.download-tab-list {
  position: sticky;
  top: calc(var(--header-height) + 8px);
  z-index: 30;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  padding: 1px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-border);
  box-shadow: var(--shadow-frame);
}

.download-tab.tab-button {
  min-height: 62px;
  justify-content: center;
  gap: 9px;
  padding: 10px 12px;
  border: 0;
  border-radius: 0;
  background: var(--color-bg);
  text-align: center;
}

.download-tab.tab-button::before {
  top: auto;
  right: 18px;
  bottom: 0;
  left: 18px;
  width: auto;
  height: 3px;
}

.download-tab.tab-button:hover {
  background: var(--color-panel);
}

.download-tab.tab-button[aria-selected="true"] {
  color: var(--color-accent-dark);
  background: var(--color-panel-strong);
  box-shadow: none;
}

.download-tab__icon {
  display: inline-flex;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  background: var(--color-bg);
}

.download-tab__icon svg {
  width: 14px;
  height: 14px;
}

.download-panel {
  grid-column: 1;
  min-width: 0;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  box-shadow: var(--shadow-frame);
}

.download-panel[hidden] {
  display: none;
}

.platform-intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.platform-intro h2 {
  margin-top: 8px;
  margin-bottom: 10px;
  font-size: clamp(25px, 3vw, 34px);
}

.platform-intro p {
  max-width: 760px;
  color: var(--color-muted);
}

.platform-mark {
  display: inline-flex;
  width: 64px;
  height: 64px;
  flex: 0 0 64px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px),
    var(--color-panel);
  background-size: 10px 10px;
}

.platform-mark svg {
  width: 25px;
  height: 25px;
}

.platform-mark .mono {
  font-size: 13px;
  font-weight: 700;
}

.client-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.client-stack--single {
  grid-template-columns: minmax(0, 720px);
}

.client-card {
  align-content: start;
}

.client-card--featured {
  position: relative;
}

.client-card--featured::before {
  content: "";
  position: absolute;
  top: -1px;
  bottom: -1px;
  left: -1px;
  width: 4px;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: var(--color-accent);
}

.client-card--archived {
  background: var(--color-panel);
}

.client-card__identity img {
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
}

.client-card p {
  color: var(--color-muted);
}

.client-card__actions {
  align-items: stretch;
}

.client-card__actions .button {
  min-height: 48px;
  flex: 1 1 190px;
}

.client-card__primary {
  width: 100%;
}

.requirements-block {
  margin-top: 38px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.requirements-block h3 {
  font-size: 21px;
}

.core-table {
  overflow: hidden;
  margin-top: 30px;
}

.core-table__head,
.core-table__row {
  display: grid;
  grid-template-columns: minmax(90px, .55fr) minmax(150px, .9fr) minmax(240px, 1.65fr) minmax(160px, .9fr);
  gap: 18px;
  align-items: center;
  padding: 14px 18px;
}

.core-table__head {
  color: var(--color-muted);
  background: var(--color-panel);
  font-size: 12px;
  font-weight: 700;
}

.core-table__row {
  border-top: 1px solid var(--color-border);
}

.core-table__row .mono {
  color: var(--color-accent-dark);
  font-size: 12px;
}

.core-table__row > span:not(.mono) {
  color: var(--color-muted);
}

.core-table__row .button {
  min-height: 48px;
  width: 100%;
}

.core-notes {
  margin-top: 22px;
}

.core-notes .card {
  box-shadow: none;
}

.core-notes h3 {
  margin-top: 9px;
}

.core-notes p {
  color: var(--color-muted);
}

.selection-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-border);
}

.selection-card {
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.selection-card h3 {
  margin-top: 10px;
}

.selection-card p {
  color: var(--color-muted);
}

.install-flow {
  display: grid;
  margin: 0;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  list-style: none;
}

.install-flow li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 20px;
  padding: clamp(20px, 4vw, 30px);
  border-top: 1px solid var(--color-border);
}

.install-flow li:first-child {
  border-top: 0;
}

.install-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-sm);
  color: var(--color-accent-dark);
  background: var(--color-panel);
  font-weight: 700;
}

.install-flow h3 {
  margin-bottom: 7px;
}

.install-flow p {
  max-width: 860px;
  color: var(--color-muted);
}

.install-flow__link {
  margin-top: 20px;
  font-weight: 650;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(240px, .68fr) minmax(0, 1.45fr);
  gap: clamp(32px, 7vw, 82px);
  align-items: start;
}

.faq-layout__intro {
  position: sticky;
  top: calc(var(--header-height) + 28px);
}

.faq-layout__intro h2 {
  margin-top: 14px;
}

.faq-layout__intro p {
  color: var(--color-muted);
}

.faq-layout__intro .button {
  margin-top: 10px;
}

@media (max-width: 900px) {
  .download-hero__layout,
  .faq-layout {
    grid-template-columns: 1fr;
  }

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

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

  .download-tab.tab-button {
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
  }

  .client-stack {
    grid-template-columns: 1fr;
  }

  .core-table {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    border: 1px solid var(--color-border);
    background: var(--color-border);
  }

  .core-table__head {
    display: none;
  }

  .core-table__row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    align-content: start;
    border: 0;
    background: var(--color-bg);
  }

  .faq-layout__intro {
    position: static;
  }
}

@media (max-width: 720px) {
  .download-hero h1 {
    font-size: clamp(26px, 7vw, 30px);
  }

  .download-tab-list {
    grid-template-columns: repeat(5, minmax(74px, 1fr));
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .download-tab.tab-button {
    min-width: 74px;
  }

  .platform-mark {
    display: none;
  }

  .selection-grid,
  .core-table {
    grid-template-columns: 1fr;
  }

  .install-flow li {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 14px;
  }
}

@media (max-width: 520px) {
  .download-hero__facts {
    align-items: stretch;
  }

  .download-hero__facts .fact-chip {
    flex: 1 1 130px;
  }

  .download-panel {
    padding: 18px;
  }

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

  .client-card__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .client-card__identity {
    width: 100%;
  }

  .client-card__actions,
  .client-card__actions .button {
    width: 100%;
  }

  .core-table__row {
    padding: 18px;
  }

  .install-flow li {
    grid-template-columns: 1fr;
  }
}