.knowledge-check-card{grid-column:1/-1;align-items:center;gap:24px;padding:24px;margin:8px 0 20px}.knowledge-check-card h2{font-size:24px}.knowledge-check-card p{max-width:740px}.knowledge-check-card>.button{flex-shrink:0}.chapter-video .video-frame{aspect-ratio:16/9;min-height:0;padding:24px;overflow-wrap:anywhere}.chapter-video .video-frame h2{font-size:clamp(20px,3vw,30px)}.chapter-video .video-frame p{margin-top:16px}.chapter-video iframe{display:block;object-fit:contain}.quiz-card input:focus-visible,.chapter-toc a:focus-visible{outline:3px solid var(--orange);outline-offset:4px}@media(max-width:600px){.knowledge-check-card{flex-direction:column;align-items:stretch;padding:20px}.knowledge-check-card>.button{width:100%;white-space:normal}.chapter-video .video-frame{aspect-ratio:auto;min-height:230px}.chapter-video .video-frame h2{font-size:22px}.quiz-q h3{overflow-wrap:anywhere}.quiz-card .button{white-space:normal}}

.lesson-side .step-button.active{color:#fff}