.course-intro{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;margin-bottom:26px}.course-intro h2{font-size:1.6rem;margin-top:14px}.course-how{background:#f1f5fc;padding:22px;border-radius:12px}.course-how ol{line-height:1.8;padding-left:22px;margin-bottom:0}.course-catalog{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-bottom:26px}.course-card h2{font-size:1.4rem;line-height:1.35;min-height:76px;margin:16px 0}.course-card>p.muted{min-height:84px;font-size:.95rem}.course-lessons{margin-top:20px}.course-lessons>a{display:flex;gap:10px;align-items:center;border-top:1px solid var(--line);padding:15px 0}.course-lessons>a>span:nth-child(2){flex:1}.course-lessons strong{font-size:.9rem;line-height:1.5}.course-lessons small{display:block;font-size:.75rem;color:var(--muted);margin-top:4px}.resource-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.resource-card{border:1px solid var(--line);border-radius:10px;padding:18px;margin:12px 0}.resource-card h3{margin-top:8px;line-height:1.5}.resource-card .bottom-actions{margin-top:12px}.lesson-status{display:flex;gap:15px;align-items:center;flex-wrap:wrap}.lesson-step-nav{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line)}.lesson-step-nav button{background:transparent;color:var(--muted);padding:15px 12px;border-bottom:3px solid transparent;font-size:.95rem}.lesson-step-nav button.active{border-color:var(--blue);color:var(--blue);font-weight:bold}.teaching-section{padding-top:24px;margin-top:20px;border-top:1px solid var(--line)}.teaching-section h2{font-size:1.4rem;margin-top:8px}.section-number{font-weight:bold;color:#83a0c7;font-size:.85rem}.objective-list{padding-left:22px;line-height:1.8}.worked-dialogue{display:flex;flex-direction:column;gap:14px;margin:24px 0}.dialogue-line{background:#f2f5f9;padding:18px;border-radius:12px;margin-right:12%}.dialogue-line.seller{background:#edf3ff;margin-left:12%;margin-right:0}.dialogue-line p{line-height:1.7;margin:8px 0}.dialogue-line small{color:var(--muted);font-size:.85rem}.model-answer{padding:20px;background:#f4f8ff;border-radius:10px;margin-top:24px}.model-answer summary{cursor:pointer;font-weight:bold;color:var(--blue)}.model-answer p{line-height:1.8}.legacy-practice{margin-top:16px}.quiz-question{border:0;padding:0;margin:28px 0}.quiz-question legend{font-weight:bold;font-size:1rem;line-height:1.6;margin-bottom:10px}.completion-checks{display:flex;gap:20px;flex-wrap:wrap;font-size:.9rem}.source-dialog{max-width:950px}.source-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:20px 0}.source-reading{max-height:65vh;overflow:auto;font-size:1rem;line-height:1.75;background:#f8fafd;padding:22px;border:1px solid var(--line);border-radius:10px}.reading{max-width:none}.source-dialog h2{padding-right:28px;font-size:1.3rem}.resource-library{margin-top:24px}@media(max-width:1150px){.course-catalog{grid-template-columns:1fr}.course-card h2,.course-card>p.muted{min-height:0}.course-intro{grid-template-columns:1fr}.course-lessons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.resource-grid{grid-template-columns:1fr}}@media(max-width:650px){.course-lessons{grid-template-columns:1fr}.lesson-step-nav button{font-size:.85rem;padding:12px 7px}.source-reading{padding:12px}.dialogue-line{margin-right:4%}.dialogue-line.seller{margin-left:4%}.course-intro{gap:16px}.source-toolbar{font-size:.85rem}}

.lesson-video{padding:22px 0;border-top:1px solid var(--line)}.lesson-video:first-of-type{border-top:0}.lesson-video video{width:100%;max-height:560px;display:block;background:#102742;border-radius:10px;margin:16px 0}.upload-state{margin-top:20px}.lesson-videos .flex{flex-wrap:wrap}.lesson-video h3{font-size:1.15rem}

.course-cover{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:10px;margin-bottom:22px}.lesson-course-art{display:block;width:100%;height:260px;object-fit:contain;background:#f5f0e5;border-radius:14px}.dashboard-course-art{display:block;width:100%;height:auto;border-radius:10px;margin-bottom:24px}@media(max-width:650px){.lesson-course-art{height:auto;aspect-ratio:3/2}}