.sdk-intro { max-width: 65ch; }
.sdk-filters { display: flex; gap: 6px; margin: 26px 0 30px; padding: 5px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-secondary); }
.sdk-filters[hidden], .sdk-panel[hidden] { display: none; }
.sdk-filters button { flex: 1; min-width: 0; min-height: 44px; padding: 10px 12px; border: 1px solid transparent; border-radius: 6px; background: transparent; color: var(--text-secondary); font-size: 14px; cursor: pointer; }
.sdk-filters button:hover { color: var(--text); border-color: var(--border); }
.sdk-filters button[aria-pressed="true"] { background: var(--site-accent); color: var(--bg); font-weight: 600; }
.sdk-panel { margin: 28px 0; }
.sdk-eyebrow, .category { color: var(--text-secondary); font-size: 12px; letter-spacing: .03em; }
.sdk-panel h2 { margin: 6px 0 12px; }
.sdk-panel h3 { margin: 26px 0 10px; }
.sdk-panel p { margin: 12px 0; }
.sdk-panel ul { padding-left: 20px; }
.sdk-panel li { margin: 10px 0; }
.sdk-terms { margin: 18px 0; }
.sdk-terms div { display: grid; grid-template-columns: 76px 1fr; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.sdk-terms dt { font-weight: 600; color: var(--text); }
.sdk-terms dd { margin: 0; color: var(--text-secondary); }
.sdk-panel code { font: .85em/1.7 ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--bg-secondary); padding: 2px 5px; border-radius: 4px; }
.sdk-panel pre { padding: 18px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg-secondary); }
.sdk-panel pre code { padding: 0; background: transparent; }
.sdk-panel .sdk-takeaway { margin-top: 24px; padding: 14px 18px; border-left: 2px solid var(--site-accent); background: var(--bg-secondary); }
.sdk-related { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--border); font-size: 14px; }
.sdk-source-note { color: var(--text-secondary); font-size: 12px; }
@media (max-width: 380px) { .sdk-filters button { padding: 10px 6px; font-size: 13px; } }
@media print { .sdk-filters { display: none; } .sdk-panel[hidden] { display: block; } }