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figcaption{margin-top:var(--space-1,4px);font-weight:600;font-size:13px}.blk-quiz-answer-image{display:block;max-width:320px}.blk-quiz-answer-image img{display:block;max-width:100%;height:auto;border-radius:var(--radius,3px)}.blk-quiz-answer-image>span{display:block;margin-top:var(--space-1,4px)}.blk-quiz-answer label>span{flex:1 1;min-width:0}.blk-quiz-explanation{margin-top:var(--space-2,8px);font-size:13px;color:var(--color-text-secondary,#3e6b74)}.blk-resources{margin:var(--space-4,16px) 0}.blk-resources-title{font-weight:600;margin-bottom:var(--space-2,8px)}.blk-resources-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--space-2,8px)}.blk-resources-item{display:flex;flex-direction:column;padding:var(--space-3,12px);border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);background:var(--color-surface,#fff)}.blk-resources-desc{font-size:13px;color:var(--color-text-secondary,#3e6b74)}.blk-process{margin:var(--space-4,16px) 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ease;transform-style:preserve-3d}.blk-flashcard-btn:hover{border-color:var(--color-interactive,#0f6b6b)}.blk-flashcard-btn:focus-visible{outline:2px solid var(--color-interactive,#0f6b6b);outline-offset:2px}.blk-flashcard-btn[aria-pressed=true]{background:var(--color-surface-inset,#f3eddf)}.blk-flashcard-flipping{transform:rotateY(90deg);opacity:.3}.blk-flashcard-hint{font-size:12px;color:var(--color-text-muted,#7ca0a8);text-transform:uppercase;letter-spacing:.04em}@media (prefers-reduced-motion:reduce){.blk-flashcard-btn{transition:opacity .12s linear}.blk-flashcard-flipping{transform:none}}.blk-sorting{border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);background:var(--color-surface,#fff);padding:var(--space-4,16px);margin:var(--space-4,16px) 0}.blk-sorting-title{font-weight:600;font-size:16px;margin:0 0 var(--space-3,12px);color:var(--color-text,#14454e)}.blk-sorting-pool{list-style:none;padding:var(--space-2,8px);margin:0 0 var(--space-3,12px);min-height:48px;display:flex;flex-wrap:wrap;gap:var(--space-2,8px);border:1px dashed var(--color-border,#c9d6d9);border-radius:var(--radius,3px);background:var(--color-surface-inset,#f3eddf)}.blk-sorting-item{padding:6px 10px;border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);background:var(--color-surface,#fff);font-size:14px;color:var(--color-text,#14454e)}.blk-sorting-categories{display:grid;grid-gap:var(--space-3,12px);gap:var(--space-3,12px);grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.blk-sorting-category{border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);padding:var(--space-3,12px);min-width:0}.blk-sorting-category-label{margin:0 0 var(--space-2,8px);font-weight:600;font-size:14px;color:var(--color-text,#14454e)}.blk-sorting-dropzone{min-height:64px;border-radius:var(--radius,3px);background:var(--color-surface-inset,#f3eddf);display:flex;flex-direction:column;gap:var(--space-2,8px);padding:var(--space-2,8px)}.blk-sorting-dropzone.blk-over{outline:2px dashed var(--color-interactive,#0f6b6b);outline-offset:-2px}.blk-sorting-item-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;font:inherit;text-align:left;cursor:pointer;padding:6px 10px;border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);background:var(--color-surface,#fff);color:var(--color-text,#14454e)}.blk-sorting-item-btn:focus-visible{outline:2px solid var(--color-interactive,#0f6b6b);outline-offset:2px}.blk-sorting-item-btn.blk-right{background:var(--color-success-bg,#d0f5ef);border-color:var(--color-success,#00bda5);color:var(--color-success-text,#00756b)}.blk-sorting-item-btn.blk-wrong{background:#f9e9e6;border-color:#d6493c;color:#b03a2e}.blk-sorting-actions{display:flex;align-items:center;gap:var(--space-3,12px);margin-top:var(--space-3,12px);flex-wrap:wrap}.blk-sorting-result{font-weight:600;font-size:14px}.blk-sorting-note{margin:var(--space-2,8px) 0 0;font-size:12px;color:var(--color-text-muted,#7ca0a8)}.blk-continue{margin:var(--space-4,16px) 0}.blk-continue[data-revealed=false]~*{display:none}.blk-continue-btn{cursor:pointer}.blk-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.blk-continue[data-required=true] .blk-continue-btn{box-shadow:0 0 0 3px var(--color-info-bg,#e5ecee)}.blk-discussion{border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);background:var(--color-surface,#fff);padding:var(--space-4,16px);margin:var(--space-4,16px) 0}.blk-discussion-title{font-weight:600;font-size:16px;margin:0 0 var(--space-2,8px);color:var(--color-text,#14454e)}.blk-discussion-summary{margin:0 0 var(--space-3,12px);font-size:14px;color:var(--color-text-secondary,#3e6b74)}.blk-discussion-facts{list-style:none;display:flex;flex-wrap:wrap;gap:var(--space-2,8px);padding:0;margin:0 0 var(--space-3,12px)}.blk-discussion-fact{font-size:12px;padding:2px 8px;border-radius:999px;background:var(--color-surface-inset,#f3eddf);color:var(--color-text-secondary,#3e6b74)}.blk-discussion-rows{list-style:none;padding:0;margin:0 0 var(--space-3,12px);display:flex;flex-direction:column;gap:var(--space-2,8px)}.blk-discussion-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:var(--space-2,8px);border-top:1px solid var(--color-border,#c9d6d9);padding-top:var(--space-2,8px)}.blk-discussion-row-link{font-size:14px;color:var(--color-text,#14454e)}.blk-discussion-row-meta{font-size:12px;color:var(--color-text-muted,#7ca0a8)}.blk-discussion-row-with-avatar{align-items:center}.blk-discussion-row-avatar{flex:none}.blk-discussion-note{margin:0 0 var(--space-3,12px);font-size:12px;color:var(--color-text-muted,#7ca0a8)}.blk-discussion-link{display:inline-block;font-size:14px;font-weight:600;color:var(--color-interactive,#0f6b6b)}.blk-interactive{margin:var(--space-4,16px) 0}.blk-interactive-stage{position:relative;width:100%;border:1px solid var(--color-border,#c9d6d9);border-radius:var(--radius,3px);overflow:hidden;background:var(--color-surface,#fff)}.blk-interactive-frame{display:block;width:100%;height:100%;border:0}.blk-interactive-title{font-weight:600;font-size:16px;margin:0 0 var(--space-2,8px);color:var(--color-text,#14454e)}.blk-interactive-note{margin:var(--space-2,8px) 0 0;font-size:13px;color:var(--color-text-secondary,#3e6b74)}.blk-empty{color:var(--color-text-muted,#7ca0a8);text-align:center}.blk-empty,.blk-unsupported{padding:var(--space-4,16px);border:1px dashed var(--color-border,#c9d6d9);border-radius:var(--radius,3px);font-size:13px;margin:var(--space-3,12px) 0}.blk-unsupported{background:var(--color-surface-inset,#f3eddf);color:var(--color-text-secondary,#3e6b74)}