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#071a3112}.visual-frame{background:linear-gradient(145deg,#061a31,#0b345a);place-items:center;min-height:420px;padding:20px;display:grid;position:relative}.visual-frame img{object-fit:contain;border-radius:12px;width:100%;max-height:510px;display:block}.equipment-photo-frame img{width:100%;height:auto;max-height:none;position:static}.lesson-transcript{max-height:540px;padding:clamp(25px,3vw,38px);overflow:auto}.content-label{color:var(--blue);letter-spacing:.12em;text-transform:uppercase;font-size:9px;font-weight:850}.lesson-transcript p{color:#26394c;margin:15px 0 0;font-size:14px;line-height:1.8}.key-points,.knowledge-check{border:1px solid var(--line);background:#fff;border-radius:20px;margin-top:20px;padding:clamp(26px,3vw,38px)}.key-points h2,.knowledge-check h2{letter-spacing:-.03em;margin:8px 0 20px;font-size:24px}.key-points ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 25px;margin:0;padding:0;list-style:none;display:grid}.key-points li{color:#3d5164;grid-template-columns:24px minmax(0,1fr);gap:9px;font-size:12px;line-height:1.55;display:grid}.key-points li span{color:#08754b;background:#def6e9;border-radius:50%;place-items:center;width:22px;height:22px;font-size:10px;font-weight:900;display:grid}.check-heading{color:var(--blue);text-transform:uppercase;letter-spacing:.1em;justify-content:space-between;gap:20px;font-size:9px;font-weight:850;display:flex}.check-heading strong{color:#7a8896}.answer-list{gap:10px;display:grid}.answer-list button{color:#32485b;text-align:left;background:#fff;border:1px solid #d7e1ea;border-radius:13px;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:12px;min-height:58px;padding:10px 15px;font-size:12px;line-height:1.45;display:grid}.answer-list button:hover{background:#f7fbff;border-color:#91bfe9}.answer-list button>span{color:#547086;background:#eaf0f5;border-radius:50%;place-items:center;width:31px;height:31px;font-weight:850;display:grid}.answer-list button.selected.correct{background:#effaf4;border-color:#56b88a}.answer-list button.selected.correct>span{color:#fff;background:#269867}.answer-list button.selected.incorrect{background:#fff4f2;border-color:#e28b82}.answer-list button.selected.incorrect>span{color:#fff;background:#ca4f43}.answer-feedback{border-radius:12px;margin-top:14px;padding:15px 17px}.answer-feedback strong{font-size:12px}.answer-feedback p{margin:4px 0 0;font-size:11px;line-height:1.5}.answer-feedback.correct{color:#08623e;background:#e2f7eb}.answer-feedback.incorrect{color:#9c362c;background:#fff0ed}.lesson-actions{justify-content:space-between;gap:15px;margin-top:22px;display:flex}.secondary-button{color:#40576b;background:#fff;border:1px solid #c7d5e1;border-radius:13px;min-height:50px;padding:0 22px;font-size:12px;font-weight:800}.lesson-continue{min-width:260px;padding:0 22px}@media (max-width:1080px){.course-header{grid-template-columns:1fr 1fr}.header-progress{grid-area:2/1/auto/-1;padding-bottom:2px}.course-layout{grid-template-columns:220px minmax(0,1fr);gap:24px;padding:24px 18px}.lesson-content-card{grid-template-columns:1fr}.visual-frame{min-height:360px}.lesson-transcript{max-height:none}}@media (max-width:760px){.course-header{grid-template-columns:1fr auto;padding:11px 15px}.course-brand small,.learner-chip div{display:none}.header-progress{grid-column:1/-1}.mobile-course-select{border-bottom:1px solid var(--line);background:#fff;gap:6px;padding:15px;display:grid}.mobile-course-select label{text-transform:uppercase;letter-spacing:.1em;font-size:9px}.mobile-course-select select{min-height:45px;color:var(--ink);background:#fff;border:1px solid #cbd8e5;border-radius:11px;padding:0 12px;font-weight:750}.course-layout{padding:24px 14px;display:block}.course-sidebar{display:none}.lesson-title-row{display:block}.lesson-module-pill{margin-top:13px;display:inline-block}.narrator-card{grid-template-columns:1fr}.narrator-controls{grid-template-columns:42px minmax(0,1fr) 62px}.visual-frame{min-height:250px;padding:10px}.key-points ul{grid-template-columns:1fr}.lesson-actions{flex-direction:column-reverse;align-items:stretch}.lesson-continue{width:100%;min-width:0}}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}