.ns-learning-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(310px,.8fr);gap:24px;align-items:start}.ns-pdf-shell,.ns-quiz-panel{background:#fff;border:1px solid rgba(45,74,58,.12);border-radius:26px;box-shadow:0 20px 55px rgba(45,74,58,.1);overflow:hidden}.ns-pdf-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:#f7f4ea}.ns-pdf-shell iframe{display:block;width:100%;height:min(76vh,920px);border:0;background:#e9e9e9}.ns-quiz-panel{padding:24px;position:sticky;top:100px}.ns-quiz-answers{display:grid;gap:10px;margin:18px 0}.ns-answer{display:flex;gap:10px;align-items:flex-start;padding:13px;border:1px solid rgba(45,74,58,.15);border-radius:14px;cursor:pointer}.ns-answer input{margin-top:3px;flex:0 0 auto}.ns-quiz-answers textarea,.ns-quiz-answers input[type=number]{width:100%;box-sizing:border-box;padding:13px;border:1px solid rgba(45,74,58,.2);border-radius:14px;font:inherit}.ns-quiz-feedback{padding:12px;border-radius:12px;min-height:1.5em}.ns-quiz-feedback.is-correct{background:rgba(116,198,157,.22)}.ns-quiz-feedback.is-wrong{background:rgba(242,184,128,.25)}
@media (min-width:768px) and (max-width:1180px){.ns-learning-layout{grid-template-columns:minmax(0,1.35fr) minmax(290px,.85fr);gap:18px}.ns-pdf-shell iframe{height:68vh}.ns-quiz-panel{top:82px;padding:20px}.ns-learning-head .ns-container{max-width:960px}}
@media (max-width:900px) and (orientation:portrait){.ns-learning-layout{grid-template-columns:1fr}.ns-quiz-panel{position:static;order:-1}.ns-pdf-shell iframe{height:62vh}}
@media (max-width:767px){.ns-learning-layout{grid-template-columns:1fr;gap:14px}.ns-quiz-panel{position:static;order:-1;padding:18px;border-radius:20px}.ns-pdf-shell{border-radius:20px}.ns-pdf-shell iframe{height:58vh}.ns-pdf-toolbar{align-items:stretch;flex-direction:column}.ns-pdf-toolbar .ns-btn{width:100%}}
@media (hover:none) and (pointer:coarse){.ns-answer,.ns-btn{min-height:44px}.ns-answer input{width:20px;height:20px}}