.lessons-container[data-astro-cid-ewu5s3ai]{max-width:1000px;margin:0 auto;text-align:left}.lessons-container[data-astro-cid-ewu5s3ai] h2[data-astro-cid-ewu5s3ai]{font-size:2.2rem;color:var(--color-primary);margin-bottom:8px}.level-nav[data-astro-cid-ewu5s3ai]{display:flex;gap:12px;margin-bottom:40px;padding-bottom:20px;border-bottom:1px solid rgba(0,0,0,.05)}.level-link[data-astro-cid-ewu5s3ai]{padding:10px 24px;background:#fff;border:1px solid #e8ecef;border-radius:50px;font-weight:700;color:var(--color-gray);transition:all .3s}.level-link[data-astro-cid-ewu5s3ai]:hover{border-color:#ff9800;color:#ff9800;transform:translateY(-2px)}.level-link[data-astro-cid-ewu5s3ai].active{background:#ff9800;color:#fff;border-color:#ff9800;box-shadow:0 8px 20px #ff980033}.lessons-subtitle[data-astro-cid-ewu5s3ai]{color:var(--color-gray);margin-bottom:32px;font-size:1.1rem}.lessons-grid[data-astro-cid-ewu5s3ai]{display:grid;gap:24px;grid-template-columns:1fr}@media(min-width:768px){.lessons-grid[data-astro-cid-ewu5s3ai]{grid-template-columns:repeat(2,1fr)}}.lesson-card[data-astro-cid-ewu5s3ai]{display:flex;flex-direction:column;justify-content:space-between;padding:28px;background:#fff;border-radius:20px;border:1px solid rgba(0,0,0,.05);box-shadow:0 10px 30px #00000008;text-decoration:none;transition:all .3s cubic-bezier(.25,.8,.25,1);position:relative;overflow:hidden}.lesson-card[data-astro-cid-ewu5s3ai]:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--accent, #FF9800);transition:width .3s ease}.lesson-card[data-astro-cid-ewu5s3ai]:hover{transform:translateY(-5px);box-shadow:0 20px 40px #00000014}.lesson-card[data-astro-cid-ewu5s3ai]:hover:before{width:8px}.lesson-card__content[data-astro-cid-ewu5s3ai] h3[data-astro-cid-ewu5s3ai]{font-size:1.3rem;color:var(--color-text);margin-bottom:10px}.lesson-card__content[data-astro-cid-ewu5s3ai] p[data-astro-cid-ewu5s3ai]{color:var(--color-gray);font-size:.9rem;line-height:1.6;margin-bottom:20px}.lesson-card__icon[data-astro-cid-ewu5s3ai] span[data-astro-cid-ewu5s3ai]{font-weight:600;color:var(--accent, #FF9800);background:#ff98001a;padding:8px 16px;border-radius:50px;font-size:.9rem;transition:background .3s}.lesson-card[data-astro-cid-ewu5s3ai]:hover .lesson-card__icon[data-astro-cid-ewu5s3ai] span[data-astro-cid-ewu5s3ai]{background:#ff980033}.practice-section[data-astro-cid-ewu5s3ai]{max-width:1000px;margin:60px auto 0;padding:40px;background:linear-gradient(135deg,#ff98000d,#ff98001a);border-radius:24px}.practice-section[data-astro-cid-ewu5s3ai] h2[data-astro-cid-ewu5s3ai]{font-size:1.8rem;color:var(--color-primary);margin-bottom:8px}.practice-section[data-astro-cid-ewu5s3ai]>p[data-astro-cid-ewu5s3ai]{color:var(--color-gray);margin-bottom:28px}.practice-grid[data-astro-cid-ewu5s3ai]{display:grid;gap:20px;grid-template-columns:1fr}@media(min-width:768px){.practice-grid[data-astro-cid-ewu5s3ai]{grid-template-columns:repeat(3,1fr)}}.practice-card[data-astro-cid-ewu5s3ai]{background:#fff;padding:24px;border-radius:16px;text-align:center}.practice-card[data-astro-cid-ewu5s3ai] h4[data-astro-cid-ewu5s3ai]{font-size:1.1rem;color:var(--color-text);margin-bottom:8px}.practice-card[data-astro-cid-ewu5s3ai] p[data-astro-cid-ewu5s3ai]{font-size:.9rem;color:var(--color-gray);margin-bottom:16px}.practice-btn[data-astro-cid-ewu5s3ai]{display:inline-block;padding:10px 24px;background:var(--color-primary);color:#fff;text-decoration:none;border-radius:50px;font-weight:600;font-size:.9rem;transition:background .3s}.practice-btn[data-astro-cid-ewu5s3ai]:hover{background:#3a5c5d}.challenge-section[data-astro-cid-ewu5s3ai]{max-width:1000px;margin:40px auto 0}.challenge-section[data-astro-cid-ewu5s3ai] h2[data-astro-cid-ewu5s3ai]{font-size:1.5rem;color:var(--color-primary);margin-bottom:20px}.challenge-card[data-astro-cid-ewu5s3ai]{background:linear-gradient(135deg,#ff980014,#ff980026);border-radius:20px;padding:32px;border:1px solid rgba(255,152,0,.2)}.challenge-card[data-astro-cid-ewu5s3ai] p[data-astro-cid-ewu5s3ai]{margin-bottom:16px;font-size:1rem;color:var(--color-text)}.challenge-list[data-astro-cid-ewu5s3ai]{list-style:none;padding:0;margin-bottom:20px}.challenge-list[data-astro-cid-ewu5s3ai] li[data-astro-cid-ewu5s3ai]{padding:8px 0;color:var(--color-text);font-size:.95rem}.challenge-hint[data-astro-cid-ewu5s3ai]{font-style:italic;color:var(--color-gray)!important}.progress-section[data-astro-cid-ewu5s3ai]{max-width:1000px;margin:40px auto 0;padding:32px 40px;background:#fff;border-radius:20px;border:1px solid rgba(0,0,0,.05)}.progress-section[data-astro-cid-ewu5s3ai] h2[data-astro-cid-ewu5s3ai]{font-size:1.5rem;color:var(--color-primary);margin-bottom:20px}.progress-bar-container[data-astro-cid-ewu5s3ai]{margin-bottom:12px}.progress-label[data-astro-cid-ewu5s3ai]{display:flex;justify-content:space-between;margin-bottom:8px;font-size:.95rem;color:var(--color-text)}.progress-bar[data-astro-cid-ewu5s3ai]{height:12px;background:#e8ecef;border-radius:6px;overflow:hidden}.progress-fill[data-astro-cid-ewu5s3ai]{height:100%;background:linear-gradient(90deg,#ff9800,#ffc107);border-radius:6px;transition:width .5s ease}.progress-hint[data-astro-cid-ewu5s3ai]{font-size:.9rem;color:var(--color-gray)}