.download-hero {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-page);
}

.download-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  align-items: center;
  gap: clamp(30px, 6vw, 78px);
}

.download-hero-copy {
  max-width: 780px;
}

.download-hero-copy .button-row {
  margin-top: 28px;
}

.download-route {
  padding: 26px;
}

.download-route-label {
  margin-bottom: 16px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.07em;
}

.download-route ol {
  margin: 0;
  padding-left: 1.25rem;
}

.download-route li {
  color: var(--color-muted);
  font-size: 14px;
}

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

.download-tabs > .tab-list {
  position: sticky;
  z-index: 18;
  top: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  padding: 7px;
  box-shadow: var(--shadow-soft);
}

.download-tabs > .tab-list [role="tab"] {
  flex: 1 0 auto;
  text-align: center;
}

.platform-panel {
  padding-top: clamp(34px, 5vw, 58px);
}

.platform-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  align-items: start;
  gap: 28px;
  margin-bottom: 28px;
}

.platform-intro h2 {
  margin-bottom: 12px;
  font-size: clamp(30px, 3.6vw, 44px);
}

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

.platform-code {
  margin-bottom: 8px;
  color: var(--color-accent-dark) !important;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.platform-requirements .data-table {
  min-width: 420px;
}

.platform-requirements .data-table td:first-child {
  width: 34%;
  color: var(--color-text);
  font-weight: 750;
}

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

.download-grid-single {
  grid-template-columns: minmax(0, 760px);
}

.download-card {
  min-height: 100%;
}

.client-identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 13px;
}

.client-identity img {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
}

.client-identity .download-card-title {
  min-width: 0;
}

.download-card-title .badge {
  margin-bottom: 7px;
}

.download-card-title h3 {
  overflow-wrap: anywhere;
}

.download-card a:not(.button) {
  color: var(--color-accent-dark);
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.card-notes {
  margin: -4px 0 0;
  padding-left: 1.15rem;
  color: var(--color-muted);
  font-size: 13px;
}

.card-notes li + li {
  margin-top: 3px;
}

.download-card-actions .button {
  min-width: 0;
}

.core-table .data-table {
  min-width: 760px;
}

.core-table .data-table td:first-child {
  color: var(--color-text);
  font-weight: 800;
}

.core-table .button {
  white-space: nowrap;
}

.core-guidance {
  margin-top: 20px;
}

.core-guidance h3 {
  font-size: 22px;
}

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

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

.install-step {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 22px;
  border-bottom: 1px solid var(--color-border);
  padding-top: 28px;
  padding-bottom: 28px;
}

.install-step-number {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 850;
}

.install-step h3 {
  margin-bottom: 8px;
  font-size: 24px;
}

.install-step p {
  max-width: 880px;
  color: var(--color-muted);
}

.download-followup {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 26px;
  margin-top: 34px;
  background: var(--color-page);
}

.download-followup h3 {
  margin-bottom: 7px;
  font-size: 24px;
}

.download-followup p {
  max-width: 720px;
  color: var(--color-muted);
}

@media (max-width: 960px) {
  .download-hero-grid,
  .platform-intro {
    grid-template-columns: 1fr;
  }

  .download-route {
    max-width: 720px;
  }

  .platform-requirements {
    max-width: 720px;
  }

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

@media (max-width: 768px) {
  .download-grid {
    grid-template-columns: 1fr;
  }

  .download-tabs > .tab-list {
    top: 6px;
  }

  .download-tabs > .tab-list [role="tab"] {
    flex: 0 0 auto;
  }
}

@media (max-width: 640px) {
  .download-hero-grid {
    gap: 26px;
  }

  .download-route {
    padding: 18px;
  }

  .platform-panel {
    padding-top: 30px;
  }

  .platform-intro {
    gap: 20px;
  }

  .platform-requirements .data-table {
    min-width: 520px;
  }

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

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

  .download-card-actions {
    align-items: stretch;
    flex-direction: column;
  }

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

  .install-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .install-step-number {
    font-size: 14px;
  }

  .download-followup {
    padding: 18px;
  }
}