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SC,sans-serif;font-size:2.15rem;font-weight:760;display:grid}.lesson-preview span{color:var(--muted);font-size:.78rem}.lesson-preview h3{margin:4px 0 6px;font-size:1.5rem}.lesson-preview p{color:var(--muted);margin:0;font-size:.92rem}.lesson-meta{color:var(--muted);flex-wrap:wrap;gap:8px 16px;font-size:.8rem;display:flex}.progress-track{background:#edf1ef;border-radius:99px;height:7px;margin:20px 0;overflow:hidden}.progress-track span{border-radius:inherit;background:var(--brand);height:100%;display:block}.dashboard-section{gap:18px;display:grid}.section-heading h2{font-size:1.55rem}.study-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.study-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);grid-template-columns:48px 1fr auto;align-items:center;gap:14px;min-height:104px;padding:18px;text-decoration:none;transition:transform .16s,border-color .16s,box-shadow 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32px);color:var(--muted);border-top:1px solid var(--line);margin:0 auto 24px;padding-top:22px;font-size:.82rem}@media (max-width:920px){.dashboard-hero{grid-template-columns:1fr}.hero-copy-block{padding:40px}.study-grid,.course-panel{grid-template-columns:1fr}.desktop-nav{gap:0}.desktop-nav a{padding-inline:9px}}@media (max-width:720px){body{padding-bottom:76px}.site-header{grid-template-columns:1fr auto;min-height:64px}.desktop-nav{display:none}.header-cta{padding:9px 12px;font-size:.78rem}.brand-copy small{display:none}.mobile-nav{z-index:30;border:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffff5;border-radius:18px;grid-template-columns:repeat(4,1fr);min-height:62px;padding:7px 10px;display:grid;position:fixed;bottom:10px;left:10px;right:10px;box-shadow:0 14px 38px #1d342c29}.mobile-nav a{color:var(--muted);align-content:center;justify-items:center;gap:2px;text-decoration:none;display:grid}.mobile-nav a>span{font-family:Noto 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.lesson-page-heading{justify-content:space-between;align-items:flex-end;gap:22px;margin-bottom:22px;display:flex}.lesson-page-heading h1{margin:5px 0 7px;font-size:clamp(2rem,5vw,3.2rem)}.lesson-page-heading>div>p:last-child{color:var(--muted);margin:0}.lesson-experience{gap:16px;scroll-margin-top:92px;display:grid}.lesson-course-bar{border:1px solid var(--line);background:var(--panel);z-index:8;border-radius:15px;grid-template-columns:auto minmax(140px,1fr) auto;align-items:center;gap:16px;padding:14px 16px;display:grid;position:sticky;top:76px;box-shadow:0 8px 24px #18342d12}.lesson-course-bar>div:first-child{align-items:baseline;gap:8px;display:flex}.lesson-course-bar>div:first-child span{color:var(--muted);font-size:.78rem}.lesson-course-bar>div:first-child strong{color:var(--brand-dark)}.lesson-course-track{background:#e4ece8;border-radius:999px;height:8px;overflow:hidden}.lesson-course-track span{border-radius:inherit;background:var(--brand);height:100%;transition:width 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var(--line);border-radius:8px;place-items:center;width:28px;height:28px;font-size:.7rem;font-weight:850;display:grid}.lesson-step-nav button.is-active span{color:#fff;border-color:var(--brand);background:var(--brand)}.lesson-step-nav button strong{font-size:.82rem}.lesson-step-content{min-width:0}.lesson-step-panel{border:1px solid var(--line);background:var(--panel);min-height:560px;box-shadow:var(--shadow);border-radius:20px;padding:28px}.lesson-step-panel>h2{margin:4px 0 9px;font-size:clamp(1.7rem,4vw,2.35rem)}.lesson-lead{max-width:760px;color:var(--muted);margin:0 0 24px;font-size:1rem}.lesson-overview-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:24px 0;display:grid}.lesson-overview-grid article{border:1px solid var(--line);background:#fafcfb;border-radius:14px;padding:17px}.lesson-overview-grid strong,.lesson-overview-grid span{display:block}.lesson-overview-grid strong{font-size:1.5rem}.lesson-overview-grid span{color:var(--muted);margin-top:3px;font-size:.75rem}.lesson-goal-block{background:var(--brand-soft);border-radius:15px;margin-top:22px;padding:20px}.lesson-goal-block h3{margin:0 0 10px}.listen-instruction-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.listen-instruction-grid article{border:1px solid var(--line);border-radius:15px;padding:19px}.listen-instruction-grid article>span{color:#fff;background:var(--brand);border-radius:9px;place-items:center;width:30px;height:30px;font-weight:850;display:grid}.listen-instruction-grid h3{margin:14px 0 6px}.listen-instruction-grid p{color:var(--muted);margin:0}.lesson-audio-stage{color:#fff;background:#122e28;border-radius:16px;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;margin-top:18px;padding:22px;display:grid}.lesson-audio-stage>span{width:52px;height:52px;color:var(--brand-dark);background:#dff5ee;border-radius:15px;place-items:center;font-size:1.5rem;font-weight:850;display:grid}.lesson-audio-stage strong,.lesson-audio-stage small{display:block}.lesson-audio-stage small{color:#b8d4cb;margin-top:3px}.vocabulary-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.vocabulary-card{border:1px solid var(--line);background:#fbfdfc;border-radius:15px;min-height:154px;padding:17px}.vocabulary-card small{color:var(--muted);font-size:.68rem;display:block}.vocabulary-card strong{margin-top:8px;font-family:Noto Sans SC,sans-serif;font-size:2rem;line-height:1.2;display:block}.vocabulary-card span{color:var(--brand);font-weight:700}.vocabulary-card p{color:var(--muted);margin:10px 0 0}.lesson-vocabulary-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.grammar-stack{gap:14px;display:grid}.grammar-stack>article{border:1px solid var(--line);border-radius:16px;padding:20px}.grammar-stack h3{margin:0 0 8px}.grammar-stack code{background:var(--brand-soft);color:var(--brand-dark);border-radius:8px;padding:6px 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