.sa30-lesson{max-width:1000px;margin:0 auto;padding:clamp(20px,4vw,56px);color:#283b46}.sa30-lesson .sa30-nav{display:flex;gap:14px;justify-content:space-between;align-items:center;flex-wrap:wrap;font-size:.94rem;margin-bottom:32px}.sa30-lesson .sa30-nav a{color:inherit;text-decoration:underline}.sa30-lesson .sa30-overline{font-size:.78rem;letter-spacing:.13em;font-weight:700;color:#596a75}.sa30-lesson h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.14;margin:.55em 0}.sa30-lesson figure{margin:30px 0;background:#eef2f0;border-radius:18px;padding:16px;overflow:hidden}.sa30-lesson figure img{display:block;width:100%;height:auto}.sa30-lesson figcaption{font-size:.82rem;color:#596a75;margin:9px 6px}.sa30-content{font-size:1.08rem;line-height:1.85}.sa30-content h2{font-size:clamp(1.35rem,2.5vw,1.8rem);line-height:1.35;margin:1.6em 0 .45em}.sa30-content p{margin:0 0 1em}.sa30-content ul{padding-inline-start:23px}.sa30-content a{color:#356c75;text-decoration:underline;overflow-wrap:anywhere}.sa30-content blockquote{border-inline-start:4px solid #91aaa6;padding-inline-start:18px;margin:24px 0;background:#f5f8f7;padding-block:16px}.sa30-quiz{border:1px solid #b5c7c5;border-radius:18px;background:#f8faf9;padding:clamp(16px,3vw,26px);margin:38px 0}.sa30-quiz h2{font-size:1.3rem}.sa30-quiz fieldset{border:0;padding:0;margin:22px 0}.sa30-quiz legend{font-weight:700;line-height:1.5;margin:0 0 12px}.sa30-quiz label{display:flex;align-items:flex-start;gap:10px;border:1px solid #d1dcd9;padding:13px;margin:7px 0;border-radius:10px;cursor:pointer}.sa30-quiz input{margin-top:.3em}.sa30-quiz button{border:0;border-radius:30px;padding:13px 22px;background:#263e49;color:white;cursor:pointer}.sa30-quiz button:focus-visible,.sa30-quiz a:focus-visible{outline:3px solid #f09b4b;outline-offset:4px}.sa30-feedback{margin:15px 0;line-height:1.65}.sa30-footer{display:flex;gap:15px;justify-content:space-between;flex-wrap:wrap;border-top:1px solid #d5deda;padding-top:25px;margin-top:30px}.sa30-footer a{color:#314c56;text-decoration:underline}@media(max-width:600px){.sa30-lesson{padding:18px}.sa30-content{font-size:1rem}.sa30-lesson figure{margin-inline:-8px;padding:8px}}.sa30-lesson .sa30-source-figure{max-width:100%;background:#f4f7f6}.sa30-lesson .sa30-source-figure img{max-height:620px;object-fit:contain;margin:auto;background:#f4f7f6}.sa30-source-figure a{color:#315c6c;text-decoration:underline}.sa30-curriculum{display:grid;gap:18px}.sa30-progress{padding:18px 22px;border:1px solid #d7e2de;border-radius:16px;line-height:1.6}.sa9 [data-level-panel="professional"]>.sa9-stage,.sa9 [data-level-panel="professional"]>.sa17-certificate-entry{display:none!important}.sa30-lab-solution{border:1px solid #c1d1c9;border-radius:14px;padding:16px 20px;margin:18px 0;background:#f3f8f6}.sa30-lab-solution summary{font-weight:700;cursor:pointer;padding:5px 0}.sa30-lab-solution:focus-within{outline-color:#506b67}.sa30-lesson .sa30-source-figure img{max-height:580px;object-fit:contain}.sa9 [data-level-panel="professional"]>.sa9-exam-entry{display:none!important}