.lesson-video-section{padding:60px 0 100px}.lesson-breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:30px;font-size:.9rem;color:var(--gray);flex-wrap:wrap}.lesson-breadcrumb a{color:var(--primary);font-weight:500}.lesson-breadcrumb a:hover{text-decoration:underline}.lesson-breadcrumb span{color:var(--gray-light)}.lesson-video-wrapper{position:relative;width:100%;padding-bottom:56.25%;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-xl);margin-bottom:30px;background:var(--dark)}.lesson-video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.lesson-video-wrapper+.lesson-video-wrapper{margin-top:20px}.lesson-info{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:15px;margin-bottom:40px}.lesson-info-tag{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,rgba(250,115,21,.1),rgba(195,65,11,.1));color:var(--primary);padding:8px 20px;border-radius:30px;font-size:.85rem;font-weight:600}.lesson-nav{display:flex;gap:10px}.lesson-nav a{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius);font-weight:500;font-size:.9rem;border:2px solid var(--primary);color:var(--primary);transition:var(--transition)}.lesson-nav a:hover{background:var(--primary);color:var(--white);transform:translateY(-2px)}.lessons-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:25px;gap:25px}.lesson-card{background:var(--white);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column;gap:15px}.lesson-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}.lesson-card-number{width:45px;height:45px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700;font-size:1.1rem}.lesson-card h3{font-size:1.1rem}.lesson-card-meta{display:flex;align-items:center;gap:8px;color:var(--gray);font-size:.85rem}.lesson-card .btn{margin-top:auto;align-self:flex-start}@media (max-width:768px){.lesson-video-section{padding:40px 0 60px}.lessons-list{grid-template-columns:1fr}.lesson-info{flex-direction:column;align-items:flex-start}.lesson-nav{width:100%}.lesson-nav a{flex:1 1;justify-content:center}}