.lesson-cover{display:flex;gap:26px;padding:36px;background:linear-gradient(125deg,#eaf0ff,#f5f8ff 65%,#fff4e0);border:1px solid #dce5f6;border-radius:24px;align-items:flex-start;margin:22px 0}.lesson-cover-icon{padding:20px;border-radius:22px;background:#fff;color:#294d9d;box-shadow:0 8px 28px #2542760d}.lesson-cover h1{font-size:clamp(28px,3.4vw,44px);line-height:1.18;letter-spacing:-1.3px;margin:12px 0 16px}.lesson-cover p{max-width:780px;line-height:1.8;color:#50617b}.lesson-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;color:#54698d;font-size:13px}.lesson-meta span{display:flex;align-items:center;gap:6px}.lesson-level-links{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.lesson-level-links a{padding:10px 17px;border:1px solid #e1e7f2;border-radius:999px;font-weight:650;font-size:13px}.lesson-level-links a[aria-current=page]{background:#25478f;color:#fff;border-color:#25478f}.lesson-workspace{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}.lesson-workspace>main{min-width:0}.lesson-view-tabs{display:flex;gap:4px;padding:5px;background:#eef2fa;border-radius:14px;margin-bottom:20px}.lesson-view-tabs button{border:0;background:none;padding:13px 19px;border-radius:10px;font-weight:700;cursor:pointer;color:#61708a;flex:1}.lesson-view-tabs button[aria-pressed=true]{background:#fff;color:#234785;box-shadow:0 2px 9px #243b6120}.lesson-plan-switch{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}.lesson-plan-switch button[aria-pressed=true]{border-color:#3159a0;background:#eaf0ff;color:#24478f}.lesson-section{margin-bottom:32px}.lesson-section:last-child{margin-bottom:0}.lesson-section h2,.lesson-worksheet h2{font-size:23px;letter-spacing:-.5px;margin:0 0 16px}.lesson-section ul{padding-left:22px;display:grid;gap:11px}.lesson-section li,.lesson-section p,.lesson-activity p{line-height:1.85;color:#4c5d75}.lesson-timeline{list-style:none;padding:0;display:grid;gap:0}.lesson-timeline>li{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid #ebeff6}.lesson-timeline h3{font-size:16px;margin:0 0 6px}.lesson-minute{display:flex;align-items:center;justify-content:center;min-width:48px;height:48px;border-radius:14px;background:#edf2fc;color:#2f5394;font-weight:800}.lesson-activity{background:#fff7df;padding:26px;border-radius:16px;margin-bottom:28px}.lesson-activity h2{font-size:22px;margin:10px 0}.lesson-tools{display:grid;gap:20px;position:sticky;top:100px}.lesson-tools .panel{display:grid;gap:14px}.lesson-tools h2{font-size:25px;margin:0}.lesson-tools p{font-size:13px;line-height:1.8;color:#66748b}.lesson-tools .button{width:100%;font-size:13px;justify-content:center}.lesson-game-link{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:13px 0;border-bottom:1px solid #e9eef6;font-size:14px;font-weight:650;color:#30518b}.lesson-certificate-link{display:flex;justify-content:space-between;padding:20px;background:#edf3ff;border-radius:14px;color:#2b4c8d;font-weight:700}.lesson-care-note{display:flex;align-items:flex-start;gap:14px;padding:22px;margin-top:22px;border:1px solid #dce9df;border-radius:16px;background:#f3faf5;color:#3a6b52;font-size:13px;line-height:1.8}.lesson-care-note>svg{flex-shrink:0}.lesson-slides{min-height:420px;background:#25458d;color:#fff;border-radius:18px;padding:48px;display:flex;flex-direction:column;justify-content:center}.lesson-slides .eyebrow{color:#bacff5}.lesson-slides h2{font-size:clamp(28px,3vw,38px);margin:18px 0;line-height:1.2}.lesson-slides .prose{color:inherit;font-size:20px}.lesson-slide-controls{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:20px}.lesson-slide-controls>span{font-size:13px;color:#68768e}.lesson-worksheet{padding:6px}.lesson-worksheet>p{font-size:14px;line-height:1.8;color:#61718b}.worksheet-question{padding-top:30px;break-inside:avoid}.worksheet-question h3{font-size:16px;line-height:1.7}.worksheet-lines{height:104px;background:repeating-linear-gradient(to bottom,transparent,transparent 33px,#d6dfe9 33px,#d6dfe9 34px)}@media(max-width:900px){.lesson-workspace{grid-template-columns:1fr}.lesson-tools{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-cover-icon{display:none}.lesson-tools>.lesson-certificate-link{grid-column:1/-1}}@media(max-width:560px){.lesson-cover{padding:25px 22px;border-radius:18px}.lesson-cover h1{letter-spacing:-.8px}.lesson-tools{grid-template-columns:1fr}.lesson-view-tabs button{padding:12px 6px;font-size:12px}.lesson-slides{padding:26px;min-height:350px}.lesson-slides .prose{font-size:17px}.lesson-level-links a{padding:9px 12px;font-size:12px}.lesson-slide-controls .button{padding:10px 14px}}@media print{.lesson-no-print,.lesson-cover-icon,.lesson-care-note{display:none!important}.lesson-cover{background:#fff;border:0;padding:0;margin:0 0 20px}.lesson-cover h1{font-size:26px}.lesson-workspace{display:block}.lesson-studio .panel{box-shadow:none;border:0;padding:0}.lesson-slides{background:#fff;color:#000;min-height:0;padding:0}.lesson-slides .eyebrow{color:#555}.lesson-section{break-inside:avoid}.worksheet-lines{background:none;border-bottom:1px solid #aaa;height:100px}.lesson-worksheet{font-size:12pt}}
