.shelf-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
  margin-bottom: 64px;
}
.shelf-intro > * {
  min-width: 0;
}
.shelf-intro h1 {
  margin: 0 0 24px;
}
.shelf-intro .section-intro {
  margin-bottom: 20px;
}
.shelf-eyebrow {
  display: block;
  margin-bottom: 16px;
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.shelf-checklist h2 {
  margin: 0 0 20px;
  font-size: var(--title-md);
}
.shelf-checklist ol {
  list-style: none;
  padding: 0;
  margin: 0;
}
.shelf-checklist li {
  padding-top: 14px;
  padding-bottom: 14px;
  border-top: 1px solid var(--border);
}
.shelf-checklist li:last-child {
  padding-bottom: 0;
}
.shelf-checklist strong,
.shelf-checklist li span {
  display: block;
}
.shelf-checklist strong {
  margin-bottom: 4px;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}
.shelf-checklist li span {
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.shelf-tabs > .tab-list {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 36px;
}
.shelf-platform-head {
  max-width: 860px;
  margin-bottom: 32px;
}
.shelf-platform-head h2 {
  margin: 0 0 16px;
}
.shelf-platform-head p {
  margin: 0;
  color: var(--text-muted);
}
.shelf-tabs .download-card {
  display: flex;
  flex-direction: column;
}
.shelf-tabs .download-meta {
  min-height: 24px;
}
.shelf-tabs .download-actions {
  flex-direction: column;
  align-items: stretch;
}
.shelf-tabs .download-actions .btn {
  width: 100%;
  min-height: 50px;
  overflow-wrap: anywhere;
}
.shelf-card-copy {
  margin-top: 22px;
  margin-bottom: 0;
  font-size: var(--text-sm);
  line-height: 1.85;
}
.shelf-tabs .shelf-official {
  margin-top: 16px;
  margin-bottom: 0;
  font-size: var(--text-sm);
}
.shelf-requirements {
  margin-top: 40px;
}
.shelf-requirements > h3 {
  margin: 0;
  font-size: var(--title-sm);
}
.shelf-requirements > p {
  max-width: 860px;
  margin-bottom: 0;
  font-size: var(--text-sm);
}
.shelf-core-table .btn {
  min-height: 48px;
  white-space: nowrap;
}
.shelf-next,
.shelf-faq {
  padding-top: 64px;
  margin-top: 64px;
  border-top: 1px solid var(--border);
}
.shelf-next h3 {
  margin: 0 0 16px;
  font-size: var(--title-sm);
}
.shelf-next .grid article {
  padding-left: 20px;
  border-left: 2px solid var(--border);
}
.shelf-next .grid p {
  margin-bottom: 0;
  color: var(--text-muted);
  font-size: var(--text-sm);
  line-height: 1.85;
}
.shelf-guide-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin-top: 32px;
  margin-bottom: 0;
}
.shelf-faq {
  max-width: 960px;
}
@media (max-width: 960px) {
  .shelf-intro {
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .shelf-intro {
    grid-template-columns: minmax(0, 1fr);
    margin-bottom: 40px;
  }
  .shelf-intro .chips {
    margin-bottom: 20px;
  }
  .shelf-platform-head h2 {
    font-size: var(--title-lg);
  }
  .shelf-next,
  .shelf-faq {
    padding-top: 40px;
    margin-top: 40px;
  }
}
@media (max-width: 480px) {
  .shelf-tabs > .tab-list {
    gap: 8px;
  }
  .shelf-tabs > .tab-list [role="tab"] {
    flex: 1 1 42%;
    padding-inline: 10px;
    font-size: var(--text-sm);
  }
  .shelf-tabs .download-card h3 {
    font-size: var(--title-sm);
  }
}