.catalog{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;max-width:1000px}.catalog p{line-height:1.6}.open-lesson{display:inline-block;padding:12px 0;font-weight:700}.steps{max-height:230px;overflow:auto}.image-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:12px;margin-top:14px}.image-gallery a{display:flex;flex-direction:column;gap:4px;font-size:12px}.image-gallery img{width:100%;height:90px;object-fit:contain;background:white}#figures img{width:100%;height:auto}#files a{display:block;margin:10px 0}#filter-class,#filter-tp{min-width:140px}.toolbar label{margin:0}canvas[hidden]{display:none}