html{scroll-behavior:smooth}body{font-family:Roboto,Arial,sans-serif;line-height:1.6;color:#333;background-color:#f8fafc;min-height:100vh;display:flex;flex-direction:column;width:100%;max-width:100%;overflow-x:hidden;position:relative}.modal-overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100vw!important;height:100vh!important;background:#000000bf!important;z-index:999999!important;display:flex!important;align-items:center!important;justify-content:center!important;backdrop-filter:blur(6px)!important;-webkit-backdrop-filter:blur(6px)!important;pointer-events:auto!important;padding:20px!important;box-sizing:border-box!important;margin:0!important;overflow:hidden!important}.modal-overlay>*{position:relative!important;z-index:1000000!important;max-height:90vh!important;overflow-y:auto!important;animation:modalSlideIn .3s cubic-bezier(.23,1,.32,1)!important}.app{width:100%;min-height:100vh;display:flex;flex-direction:column;background-color:#f8fafc;position:relative}.content{flex:1;width:100%;max-width:100%;margin:0 auto;padding:0 40px;padding-top:1.2rem;box-sizing:border-box;position:relative}@media (min-width: 1440px){.content{padding:0 120px;padding-top:1.2rem;max-width:1600px}}@media (min-width: 1280px) and (max-width: 1439px){.content{padding:0 80px;padding-top:1.2rem;max-width:1440px}}@media (max-width: 1279px){.content{padding:0 60px;padding-top:1.2rem}}.content>*+*{margin-top:40px}@media (max-width: 1024px){.content{padding:0 24px;padding-top:1.2rem}}@media (max-width: 768px){.content{padding:0 16px;padding-top:1rem;width:100%;max-width:100%}body,html{overflow-x:hidden;width:100%}.content>*+*{margin-top:24px}body{font-size:16px;line-height:1.7}}@media (max-width: 480px){.content{padding:0 12px;padding-top:1rem}.content>*+*{margin-top:20px}}:root{--primary: #4F46E5;--primary-hover: #4338CA;--primary-light: #EEF2FF;--primary-50: #EEF2FF;--primary-100: #E0E7FF;--primary-200: #C7D2FE;--text: #111827;--text-light: #4B5563;--bg: #FFFFFF;--bg-opaque: rgba(255, 255, 255, .95);--border: #E5E7EB;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--transition: all .2s cubic-bezier(.4, 0, .2, 1);--border-radius: .5rem;--header-height: 5rem}body{padding-top:5rem;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text);line-height:1.5}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--bg-opaque);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:50;padding:0 5%;display:flex;align-items:center;justify-content:space-between}.logo-link{font-size:1.75rem;font-weight:800;color:var(--primary);text-decoration:none;display:flex;align-items:center;justify-content:center;margin-left:30px;height:100%}.responsive-logo{height:60px;width:auto;max-width:200px;transition:all .3s ease;object-fit:contain;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}.responsive-logo:hover{transform:scale(1.05)}@media (min-width: 1200px){.responsive-logo{height:70px;max-width:250px}}@media (min-width: 1600px){.responsive-logo{height:80px;max-width:300px}}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:40;opacity:0;transition:opacity .3s ease}.mobile-menu-overlay.open{display:block;opacity:1}.main-nav{display:flex;height:100%;align-items:center}.mobile-menu{display:flex;list-style:none;gap:.5rem;margin:0;padding:0;height:100%;align-items:center}.mobile-menu li{position:relative;height:100%;display:flex;align-items:center}.mobile-menu a{color:var(--text-light);text-decoration:none;font-weight:500;padding:.5rem 1rem;border-radius:var(--border-radius);transition:var(--transition);display:flex;align-items:center;height:100%}.mobile-menu a:hover{color:var(--primary);background:var(--primary-50)}.dropdown{position:relative}.dropdown-header{display:flex;align-items:center;gap:.25rem}.dropdown-header .main-nav-link{padding:.5rem .75rem .5rem 1rem;color:var(--text-light);text-decoration:none;font-weight:500;border-radius:var(--border-radius);transition:var(--transition);white-space:nowrap}.dropdown-header .main-nav-link:hover{color:var(--primary);background:var(--primary-50)}.dropdown-header .dropdown-toggle{padding:.5rem;margin-right:.5rem;color:var(--text-light);transition:var(--transition)}.dropdown-header .dropdown-toggle:hover{color:var(--primary);background:var(--primary-50)}.dropdown-divider{height:1px;background-color:var(--border);margin:.5rem 0}.dropdown-link.view-all{font-weight:600;color:var(--primary);display:flex;align-items:center;gap:.5rem}.dropdown-link.view-all i{font-size:.9em}.dropdown-link i{width:1.25rem;text-align:center;margin-right:.5rem;opacity:.8}.dropdown-toggle{background:none;border:none;cursor:pointer;font:inherit;color:var(--text-light);padding:.5rem 1rem;border-radius:var(--border-radius);display:flex;align-items:center;gap:.5rem}.dropdown-toggle:hover{color:var(--primary);background:var(--primary-50)}.dropdown-toggle.tests-button{background:linear-gradient(135deg,#f59e0b,#d97706)!important;color:#fff!important;font-weight:600!important;border-radius:8px!important;box-shadow:0 2px 4px #f59e0b4d!important;transition:all .3s ease!important;border:none!important}.dropdown-toggle.tests-button:hover{background:linear-gradient(135deg,#d97706,#b45309)!important;color:#fff!important;transform:translateY(-1px)!important;box-shadow:0 4px 8px #f59e0b66!important}.dropdown-toggle.tests-button:focus{background:linear-gradient(135deg,#d97706,#b45309)!important;color:#fff!important;outline:none!important}.dropdown-menu{position:absolute;top:100%;left:0;background:var(--bg);border-radius:var(--border-radius);box-shadow:0 10px 25px -5px #0000001a,0 8px 10px -6px #0000001a;padding:.75rem 0;min-width:16rem;opacity:0;visibility:hidden;transform:translateY(.5rem);transition:all .2s cubic-bezier(.16,1,.3,1);z-index:50;border:1px solid var(--border)}.dropdown-menu.show{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-link{display:block;padding:.75rem 1.25rem;color:var(--text);text-decoration:none;transition:var(--transition)}.dropdown-link:hover{background:var(--primary-50);color:var(--primary)}.user-menu{position:relative;margin-left:1rem}.user-menu-button{display:flex;align-items:center;gap:8px;background:none;border:1px solid var(--border);border-radius:0;padding:6px 12px 6px 6px;cursor:pointer;transition:all .2s ease;background:#fff}.user-menu-button:hover{background:var(--primary-50);border-color:var(--primary-200)}.user-avatar{width:28px;height:28px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600}.user-name{width:170px;max-width:unset;font-size:14px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:380px;background:#fff;border-radius:12px;box-shadow:0 10px 25px -5px #0000001a,0 6px 10px -5px #0000000d;opacity:0;visibility:hidden;transform:translateY(8px) scale(.98);transform-origin:top right;transition:all .2s cubic-bezier(.25,.8,.25,1);z-index:1000;border:1px solid rgba(0,0,0,.08);padding:8px 0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffffa}.user-dropdown.show{opacity:1;visibility:visible;transform:translateY(0) scale(1);animation:dropdownFadeIn .2s ease-out}@keyframes dropdownFadeIn{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.user-dropdown-header{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid rgba(0,0,0,.04);margin-bottom:6px;background:#fff;position:relative;overflow:hidden}.user-dropdown-header:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary),#6c63ff)}.user-dropdown-avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary) 0%,#6c63ff 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;margin-right:12px;flex-shrink:0;transition:all .2s ease;position:relative;overflow:hidden}.user-dropdown-avatar:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#ffffff1a,#ffffff4d);opacity:.6}.user-dropdown-info{min-width:0}.user-dropdown-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.user-dropdown-email{font-size:12px;color:var(--text-light);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-dropdown-balance{display:flex;justify-content:space-between;align-items:center;padding:6px 10px;margin:4px 12px 6px;background:#f8f9ff;border-radius:5px;border:1px solid rgba(99,102,241,.1);position:relative;overflow:hidden;transition:all .15s ease;font-size:12px}.user-dropdown-balance:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(to bottom,var(--primary),#6c63ff);border-radius:4px 0 0 4px}.balance-amount{display:flex;flex-direction:column;gap:1px}.balance-label{font-size:10px;font-weight:500;color:var(--primary-600);text-transform:uppercase;letter-spacing:.3px;opacity:.8}.balance-amount .amount{font-size:14px;font-weight:600;color:var(--primary)}.top-up-button{background:var(--primary);color:#fff;border:none;border-radius:5px;padding:4px 10px;font-size:12px;font-weight:500;cursor:pointer;transition:all .15s ease;display:flex;align-items:center;gap:4px;box-shadow:0 1px 2px #0000000d}.top-up-button i{font-size:14px}.top-up-button:hover{background:var(--primary-hover)}.user-dropdown-divider{height:1px;background:var(--border);margin:8px 0;border:none}.user-dropdown-item{display:flex;align-items:center;padding:10px 16px;color:var(--text);text-decoration:none;transition:all .15s ease;font-size:13.5px;font-weight:500;position:relative;margin:1px 0;border-radius:6px;background:transparent;border:none;width:100%;text-align:left;cursor:pointer}.user-dropdown-item:before{content:"";position:absolute;left:0;top:0;height:100%;width:3px;background:var(--primary);transform:scaleY(0);transform-origin:center;transition:transform .3s ease}.user-dropdown-item i{width:20px;text-align:center;margin-right:12px;color:var(--text-light);font-size:15px;transition:all .15s ease}.user-dropdown-item:hover{background:linear-gradient(90deg,#6366f10d,#6366f105);color:var(--primary);padding-left:28px}.user-dropdown-item:hover:before{transform:scaleY(1)}.user-dropdown-item:hover i{color:var(--primary);transform:translate(4px)}.user-dropdown-item.logout-button{color:#ef4444;justify-content:space-between;margin:4px 0 0;padding:8px 16px;border-radius:0 0 6px 6px;background:#fff8f8!important;position:relative;transition:all .2s ease;border-top:1px solid rgba(239,68,68,.1);font-size:13px}.user-dropdown-item.logout-button i:first-child{color:#ef4444;font-size:13px;transition:transform .2s ease}.user-dropdown-item.logout-button:hover{color:#dc2626;padding:8px 16px 8px 20px;background:#fff0f0!important}.user-dropdown-item.logout-button:hover i{transform:rotate(180deg) translate(4px)}.user-dropdown-item.logout-button:hover{background:#fef2f2;color:#b91c1c}.user-dropdown-item.logout-button:hover i{color:#b91c1c;transform:translate(0)}.user-dropdown-item i{margin-right:12px;width:20px;text-align:center;color:var(--text-light)}.user-dropdown-item:hover{background:var(--primary-50);color:var(--primary)}.user-dropdown-item:hover i{color:var(--primary)}.auth-links{display:flex;align-items:center;gap:1rem;margin-left:1rem}.auth-links a{color:var(--text-light);text-decoration:none;font-weight:500}.auth-links .signup-link{color:var(--primary);font-weight:600}@media (max-width: 1024px){.header{padding:0 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1.8rem;font-size:.95rem;color:#374151;font-weight:500;text-decoration:none;background:transparent;border:none;border-radius:0;transition:all .15s ease}.modern-mobile-menu-dropdown a:hover{background:#e5e7eb;color:#4f46e5;padding-left:2rem}.modern-mobile-logout{color:#ef4444!important;font-weight:600}.modern-mobile-side-menu{font-family:Inter,Segoe UI,Arial,sans-serif}.modern-mobile-menu-list{margin-top:48px;padding-top:0}.modern-mobile-menu-list li:first-child{margin-top:0;padding-top:0}}@media (max-width: 480px){.header{height:3.5rem;padding:0 .5rem}.logo-link{font-size:1.2rem;margin-left:0}.responsive-logo{height:40px!important;max-width:120px!important;margin-right:.5rem}.main-nav{height:auto}.mobile-menu{top:var(--header-height);left:auto;right:0;width:100vw;max-width:none;min-width:100vw;background:var(--bg);box-shadow:-2px 0 12px #00000014;transform:translate(100%);transition:transform .3s 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0;padding-top:1rem;border-top:1px solid var(--border);gap:.5rem}.auth-links a{font-size:1.05rem;padding:.75rem .5rem;border-radius:8px}.mobile-menu{z-index:1002!important;background:var(--bg);box-shadow:-2px 0 16px #0000001f}.mobile-menu.open{z-index:1002!important}.mobile-menu-overlay.open{z-index:1001!important}}.modern-mobile-user-header.compact{display:flex;align-items:center;gap:10px;padding:18px 18px 12px;border-bottom:1px solid #f0f0f0;background:#fff}.modern-mobile-user-avatar.small{width:38px;height:38px;border-radius:50%;background:#6366f1;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;overflow:hidden;flex-shrink:0}.modern-mobile-user-avatar.small img{width:100%;height:100%;object-fit:cover;border-radius:50%}.modern-mobile-user-name-group{display:flex;align-items:center;gap:6px;font-size:1.08rem;font-weight:600;color:#222;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1 1 auto;margin-right:56px;max-width:calc(100vw - 120px)}.modern-mobile-user-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block;max-width:200px}.modern-mobile-user-header.fixed{position:sticky;top:0;left:0;right:0;z-index:1204;background:#fff;display:flex;align-items:center;justify-content:flex-start;padding:12px 12px 12px 16px;min-height:56px;border-bottom:1px solid #f0f0f0}.modern-mobile-user-avatar.small{margin-right:10px}.modern-mobile-user-name-group{display:flex;align-items:center;gap:6px;font-size:1.08rem;font-weight:600;color:#222;white-space:nowrap}.modern-mobile-menu-close{margin-left:auto;margin-right:0;margin-top:-5px;background:none;border:none;font-size:2.5rem;color:#222;cursor:pointer;z-index:1205;line-height:1;align-self:center;flex-shrink:0}.modern-mobile-menu-scroll{overflow-y:auto;max-height:calc(100vh - 56px);padding-bottom:24px}.live-lessons-page{max-width:1200px;margin:0 auto;padding:2rem 1.5rem;min-height:calc(100vh - 200px)}.lessons-header{text-align:center;margin-bottom:2.5rem}.lessons-header h1{font-size:2.5rem;color:#1a365d;margin-bottom:.5rem;font-weight:700}.lessons-header p{font-size:1.1rem;color:#4a5568;max-width:700px;margin:0 auto}.search-container{background:#fff;border-radius:10px;box-shadow:0 2px 10px #0000000d;margin-bottom:2.5rem;overflow:hidden}.search-icon{position:absolute;left:1rem;color:#a0aec0;font-size:1.25rem}.search-input{width:100%;padding:.75rem 1rem .75rem 3rem;border:1px solid #e2e8f0;border-radius:8px;font-size:1rem;transition:all .2s ease}.search-input:focus{outline:none;border-color:#4299e1;box-shadow:0 0 0 3px #4299e133}.search-button{display:flex;align-items:center;gap:.5rem;background:#3182ce;color:#fff;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .2s 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#0003}.social-btn.facebook{background:linear-gradient(135deg,#1877f2,#0d6efd)}.social-btn.twitter{background:linear-gradient(135deg,#1da1f2,#0ea5e9)}.social-btn.telegram{background:linear-gradient(135deg,#08c,#0891b2)}.social-btn.whatsapp{background:linear-gradient(135deg,#25d366,#16a34a)}.referral-stats-section{margin-bottom:32px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:32px}.stat-card{background:#fff;border-radius:20px;padding:24px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 20px #2563eb14;border:1px solid rgba(37,99,235,.06);transition:all .3s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px #2563eb26}.stat-card.featured{border:2px solid #6366f1;box-shadow:0 8px 32px #6366f11f}.stat-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;background:linear-gradient(135deg,#e0e7ff,#c7d2fe);border-radius:16px;color:#2563eb;transition:all .3s ease;box-shadow:0 4px 16px #2563eb1a}.stat-card:hover .stat-icon{transform:scale(1.1);background:linear-gradient(135deg,#c7d2fe,#a5b4fc)}.stat-content{flex:1}.stat-value{font-size:1.8rem;font-weight:700;color:#1e293b;line-height:1;margin-bottom:4px}.stat-label{font-size:.95rem;color:#64748b;font-weight:500}.payment-info{display:flex;justify-content:center}.info-card{background:#fff;border-radius:16px;padding:24px;text-align:center;box-shadow:0 4px 20px #2563eb14;border:1px solid rgba(37,99,235,.06);max-width:500px}.info-card h4{font-size:1.2rem;font-weight:600;color:#1e293b;margin-bottom:12px}.info-card p{color:#64748b;font-size:1rem;line-height:1.6;margin-bottom:20px}.info-links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.info-link{color:#2563eb;font-weight:600;text-decoration:none;padding:8px 16px;border-radius:8px;background:#e0e7ff;transition:all .3s ease}.info-link:hover{background:#c7d2fe;color:#1d4ed8;transform:translateY(-1px)}@media (max-width: 768px){.referral-main{padding:20px}.referral-header{flex-direction:column;text-align:center;gap:20px;padding:24px}.referral-title{font-size:1.8rem}.referral-subtitle{font-size:1rem}.referral-header-icon{width:64px;height:64px}.commission-cards{grid-template-columns:1fr}.steps-container{flex-direction:column;gap:24px}.step-item{min-width:auto;width:100%}.step-arrow{display:none}.link-input-wrapper{flex-direction:column}.copy-button{width:100%}.stats-grid{grid-template-columns:1fr}.social-buttons{gap:8px}.social-btn{width:44px;height:44px}}@media (max-width: 480px){.referral-main{padding:16px}.referral-header{padding:20px}.referral-title{font-size:1.6rem}.commission-card,.referral-link-card,.stat-card{padding:20px}.section-title{font-size:1.3rem}.info-links{flex-direction:column;align-items:center}}:root{--primary-color: #2563eb;--primary-dark: #1d4ed8;--text-color: #333;--gray-light: #f3f4f6;--white: #fff}html{zoom:.8}@media screen and (max-width: 768px){html{zoom:1}}@media screen and (min-width: 769px) and (max-width: 1024px){html{zoom:.85}}@media screen and (min-width: 1025px){html{zoom:.8}}.btn{padding:.5rem 1rem;border-radius:4px;border:none;cursor:pointer;font-weight:600;transition:all .3s}.btn-primary{background:var(--primary-color);color:var(--white)}.btn-primary:hover{background:var(--primary-dark)}.live-lessons{background:#ffffff1a;border-radius:8px;padding:1.5rem}.lesson-card{background:#ffffff0d;padding:1rem;border-radius:4px;margin-bottom:1rem}.stats{background:var(--gray-light);padding:3rem 0}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;text-align:center}.stat-number{font-size:2rem;font-weight:700;color:var(--primary-color)}.features{padding:4rem 0}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-top:3rem}.feature-card{text-align:center}.feature-icon{font-size:2.5rem;margin-bottom:1rem}.testimonials{background:var(--gray-light);padding:4rem 0}.testimonial-card{background:var(--white);padding:1.5rem;border-radius:8px;box-shadow:0 2px 4px #0000001a}@media (max-width: 768px){.stats-grid,.features-grid{grid-template-columns:1fr}}@media (max-width: 768px){body{font-size:16px;line-height:1.7}h1{font-size:2.5rem!important;line-height:1.2}h2{font-size:2rem!important;line-height:1.3}h3{font-size:1.5rem!important;line-height:1.4}p{font-size:1.1rem;line-height:1.6}.btn{padding:.75rem 1.5rem;font-size:1.1rem;min-height:44px}.container{padding:0 16px}.stats-grid{gap:1.5rem}.stat-number{font-size:2.5rem}.features-grid{gap:2rem}.feature-card{padding:1.5rem}.feature-icon{font-size:3rem}.testimonial-card{padding:2rem}}@media (max-width: 480px){body{font-size:17px}h1{font-size:2.2rem!important}h2{font-size:1.8rem!important}.container{padding:0 12px}.btn{padding:.8rem 1.8rem;font-size:1.15rem}}:root{--primary-color: #2563eb;--primary-dark: #1d4ed8;--text-color: #333;--gray-light: #f3f4f6;--white: #fff;--border-color: #e5e7eb}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-color)}.logo{font-size:1.5rem;font-weight:700;color:var(--primary-color)}.dropdown-menu{position:absolute;top:100%;left:-1rem;background:var(--white);border:1px solid var(--border-color);border-radius:4px;box-shadow:0 4px 6px #0000001a;min-width:200px;padding:.5rem 0}.dropdown-menu a{display:block;padding:.5rem 1rem;color:var(--text-color);text-decoration:none;transition:background-color .2s}.dropdown-menu a:hover{background-color:var(--gray-light);color:var(--primary-color)}.footer{background:#f8f9fa;padding:4rem 0 0;margin-top:4rem}.footer-content{max-width:1200px;margin:0 auto;padding:0 1rem;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}.footer-section h3{color:var(--text-color);font-size:1.125rem;font-weight:600;margin-bottom:1.25rem}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.75rem}.footer-section ul li a{color:#666;text-decoration:none;transition:color .2s}.footer-section ul li a:hover{color:var(--primary-color)}.footer-bottom{margin-top:3rem;padding:1.5rem 0;border-top:1px solid var(--border-color)}@media (max-width: 768px){.footer-content{grid-template-columns:repeat(2,1fr)}}@media (max-width: 480px){.footer-content{grid-template-columns:1fr}}.live-lessons{--primary: #4F46E5;--primary-light: #6366F1;--primary-dark: #4338CA;--primary-50: #EEF2FF;--primary-100: #E0E7FF;--primary-200: #C7D2FE;--primary-600: #4F46E5;--primary-700: #4338CA;--card-bg: #fff;--text-primary: #111827;--text-secondary: #4b5563;--text-tertiary: #6b7280;--border-color: #e5e7eb;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--transition: all .3s cubic-bezier(.4, 0, .2, 1);--radius-lg: 1rem;--radius-md: .75rem;--radius-sm: .5rem;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--header-gradient: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);--card-hover-transform: translateY(-6px);--card-hover-shadow: 0 20px 25px -5px rgba(79, 70, 229, .1), 0 10px 10px -5px rgba(79, 70, 229, .04);width:100%;padding:4rem 0;background-color:#f9fafb;position:relative;overflow:hidden;box-sizing:border-box;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif}.live-lessons h2{font-size:2.25rem;font-weight:800;line-height:1.2;color:var(--text-primary);margin:0 0 var(--spacing-4) 0;background:linear-gradient(90deg,#4f46e5,#8b5cf6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-align:center;padding:0 var(--spacing-4);max-width:1200px;margin-left:auto;margin-right:auto}.section-subtitle{font-size:1.125rem;line-height:1.6;color:var(--text-secondary);text-align:center;max-width:800px;margin:0 auto var(--spacing-10);padding:0 var(--spacing-4)}.new-badge{display:inline-flex;align-items:center;gap:var(--spacing-1);font-size:.75rem;font-weight:600;color:#8b5cf6;background:#8b5cf61a;padding:var(--spacing-1) var(--spacing-3);border-radius:9999px;white-space:nowrap}.section-header{text-align:center;margin-bottom:var(--spacing-10);max-width:800px;margin-left:auto;margin-right:auto;padding:0 var(--spacing-4)}.section-label{display:inline-block;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--primary);background-color:var(--primary-50);padding:var(--spacing-1) var(--spacing-3);border-radius:9999px;margin-bottom:var(--spacing-4)}.tabs-container{display:flex;justify-content:center;margin-bottom:2rem;position:relative;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:.5rem 0;width:100%;max-width:100%;box-sizing:border-box}.tabs-container::-webkit-scrollbar{display:none}.tabs-scroll{display:inline-flex;gap:.5rem;padding:.25rem;min-width:100%}.tab-button{position:relative;background:none;border:none;padding:.5rem 1.25rem;font-size:.9375rem;font-weight:500;color:var(--text-secondary);cursor:pointer;white-space:nowrap;border-radius:2rem;transition:all .3s cubic-bezier(.4,0,.2,1);will-change:transform,background-color,color;-webkit-tap-highlight-color:transparent}.tab-button-content{position:relative;display:inline-flex;align-items:center;justify-content:center;height:100%;width:100%;z-index:1}.tab-button:hover:not(.active){background:#00000008;transform:translateY(-1px)}.tab-button.active{color:#fff;font-weight:600;background:var(--category-color, var(--primary));box-shadow:0 4px 12px #3b82f633;transform:translateY(-1px)}.tab-button.active .tab-indicator{display:none}.tab-indicator{position:absolute;bottom:-.25rem;left:50%;transform:translate(-50%);width:1.5rem;height:3px;background:var(--category-color, var(--primary));border-radius:3px;box-shadow:0 2px 8px #3b82f640}.container{width:100%;max-width:100%;margin:0 auto;padding:0;position:relative;z-index:1;box-sizing:border-box}.lessons-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;width:100%;max-width:1280px;margin:0 auto;padding:0 1.5rem;box-sizing:border-box}.lesson-card{position:relative;background:var(--card-bg);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;transition:all .3s cubic-bezier(.4,0,.2,1);border:1px solid var(--border-color);display:flex;flex-direction:column;height:100%;will-change:transform,box-shadow;transform:translateY(0);background:#fff}.lesson-card.featured{border:1px solid var(--primary-200);box-shadow:0 10px 15px -3px #4f46e51a,0 4px 6px -2px #4f46e50d}.lesson-card:hover{transform:translateY(-6px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.lesson-card.featured:hover{box-shadow:0 20px 25px -5px #4f46e526,0 10px 10px -5px #4f46e51a}.lesson-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--header-gradient);opacity:0;transition:opacity .3s ease;z-index:2}.lesson-card:hover{transform:var(--card-hover-transform);box-shadow:var(--card-hover-shadow);border-color:var(--primary-200)}.lesson-card:hover:before{opacity:1}.lesson-card:active{transform:translateY(-2px);transition-duration:.1s}.card-content{padding:1.5rem;flex:1;display:flex;flex-direction:column;position:relative;z-index:1;background:#fff;border-radius:0 0 var(--radius-lg) var(--radius-lg);transition:all .3s cubic-bezier(.4,0,.2,1);width:100%;box-sizing:border-box;height:100%}.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem}.card-category{display:inline-block;font-size:.75rem;font-weight:600;line-height:1.25;padding:.25rem .75rem;border-radius:9999px;text-transform:uppercase;letter-spacing:.05em;transition:all .2s ease}.featured-badge{font-size:.75rem;font-weight:600;color:var(--primary-700);background-color:var(--primary-50);padding:.25rem .75rem;border-radius:9999px;margin-left:.5rem}.card-title{font-size:1.25rem;font-weight:700;line-height:1.4;color:var(--text-primary);margin:0 0 .75rem;transition:color .2s ease}.card-excerpt{font-size:.9375rem;line-height:1.6;color:var(--text-secondary);margin:0 0 1.25rem;flex-grow:1}.card-meta{display:flex;flex-wrap:wrap;gap:.75rem 1.25rem;margin-bottom:1.25rem;font-size:.875rem;color:var(--text-tertiary)}.meta-item{display:inline-flex;align-items:center;gap:.375rem;line-height:1.4}.meta-icon{font-size:.875em;color:var(--text-tertiary);opacity:.8}.card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:.75rem;border-top:1px solid var(--border-color);margin-top:auto}.price{font-size:1.125rem;font-weight:700;color:var(--text-primary)}.join-button{display:inline-flex;align-items:center;gap:.5rem;background:none;border:none;color:var(--primary);font-weight:600;font-size:.9375rem;padding:.5rem .75rem;border-radius:.5rem;cursor:pointer;transition:all .2s ease;margin:-.5rem -.75rem -.5rem 0}.join-button:hover{background:var(--primary-50);transform:translate(2px)}.join-icon{font-size:.75em;transition:transform .2s ease}.join-button:hover .join-icon{transform:translate(2px)}.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-4);position:relative;z-index:2}.card-category{font-size:.6875rem;font-weight:700;letter-spacing:.05em;color:var(--primary-700);background:var(--primary-50);padding:.35rem .75rem;border-radius:9999px;text-transform:uppercase;border:1px solid var(--primary-100);box-shadow:0 1px 2px #0000000d;transition:all .2s ease}.lesson-card:hover .card-category{background:var(--primary-100);transform:translateY(-1px)}.card-title{font-size:1.25rem;font-weight:700;line-height:1.5;color:var(--text-primary);margin:0 0 var(--spacing-4) 0;transition:color .2s ease;position:relative;padding-bottom:var(--spacing-3);overflow:hidden}.card-title:after{content:"";position:absolute;bottom:0;left:0;width:48px;height:3px;background:var(--primary-200);border-radius:3px;transition:all .3s ease}.lesson-card:hover .card-title{color:var(--primary)}.lesson-card:hover .card-title:after{width:64px;background:var(--header-gradient)}.card-excerpt{color:var(--text-secondary);margin:0 0 var(--spacing-6) 0;line-height:1.7;font-size:.9375rem;flex-grow:1;position:relative;padding:0 0 var(--spacing-6) 0;border-bottom:1px dashed var(--border-color)}.card-excerpt:before{content:'"“"';font-family:Georgia,serif;font-size:4rem;position:absolute;left:-.5rem;top:-1.5rem;color:var(--primary-100);line-height:1;z-index:0;opacity:.7}.lesson-card:hover .card-excerpt{color:var(--text-primary)}.card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:1.25rem;border-top:1px solid var(--gray-100);position:relative;z-index:2;width:100%}.author-info{display:flex;align-items:center;flex:1;min-width:0;margin-right:1.5rem;overflow:hidden}.author-details{margin-left:.75rem;min-width:0}.author-name{font-weight:600;color:var(--gray-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.post-date{font-size:.75rem;color:var(--gray-500);margin-top:.125rem}.card-footer:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent)}.author-info{display:flex;align-items:center;gap:var(--spacing-3);position:relative;z-index:2}.author-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary-100);display:flex;align-items:center;justify-content:center;color:var(--primary-700);font-weight:700;font-size:1rem;flex-shrink:0;border:2px solid white;box-shadow:0 2px 4px #0000000d;transition:all .3s ease;position:relative;overflow:hidden}.lesson-card:hover .author-avatar{transform:scale(1.05);box-shadow:0 4px 8px #0000001a}.author-avatar:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#fff3,#fff0);z-index:1}.author-details{display:flex;flex-direction:column}.author-name{font-size:.875rem;font-weight:700;color:var(--text-primary);line-height:1.4;transition:color .2s ease}.lesson-card:hover .author-name{color:var(--primary)}.post-date{font-size:.75rem;color:var(--text-tertiary);position:relative;display:inline-flex;align-items:center;gap:4px}.post-date:before{content:"•";display:inline-block;margin-right:4px;color:var(--primary-300)}.join-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:.875rem;font-weight:600;color:var(--primary);background:transparent;border:none;padding:.25rem .75rem;cursor:pointer;transition:all .2s ease;position:relative;margin-left:auto;white-space:nowrap}.join-btn:hover{color:var(--primary-dark);transform:translate(2px)}.join-btn:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--primary-100) 0%,var(--primary-50) 100%);z-index:-1;opacity:0;transition:opacity .3s ease}.join-btn:hover{color:var(--primary-700);transform:translateY(-1px);box-shadow:0 4px 12px #6366f126}.join-btn:hover:before{opacity:1}.join-btn:active{transform:translateY(0);box-shadow:0 2px 6px #6366f11a;transition-duration:.1s}.join-btn svg{width:16px;height:16px;transition:all .3s ease}.join-btn:hover svg{transform:translate(4px);filter:brightness(1.1)}@keyframes pulse{0%{box-shadow:0 0 #6366f166}70%{box-shadow:0 0 0 6px #6366f100}to{box-shadow:0 0 #6366f100}}.live-indicator{display:inline-block;width:8px;height:8px;background:#ef4444;border-radius:50%;margin-right:6px;position:relative;animation:pulse 2s infinite}.button-container{width:100%;display:flex;justify-content:center;margin-top:3rem;padding:0 var(--spacing-4);padding:0 1rem;box-sizing:border-box}.explore-more-btn{display:inline-flex;align-items:center;justify-content:center;padding:.8125rem 2rem;font-size:1rem;font-weight:600;color:#fff;background:var(--primary);border:none;border-radius:9999px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 6px -1px #4f46e54d,0 2px 4px -1px #4f46e51a;position:relative;overflow:hidden;z-index:1;text-align:center;min-width:240px;width:auto;line-height:1.5}.explore-more-btn:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #4f46e54d,0 4px 6px -2px #4f46e533}.explore-more-btn:active{transform:translateY(0);box-shadow:0 2px 4px -1px #4f46e533}.btn-icon{margin-left:.5rem;font-size:.875em;transition:transform .2s ease}.explore-more-btn:hover .btn-icon{transform:translate(4px)}.explore-more-btn:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);z-index:-1;opacity:1;transition:opacity .3s ease}.explore-more-btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 10px 15px -3px #6366f14d,0 4px 6px -2px #6366f133;border-color:var(--primary-light)}.explore-more-btn:active{transform:translateY(0);box-shadow:0 2px 4px -1px #6366f133}.explore-more-btn svg{margin-left:.5rem;transition:transform .3s ease;width:16px;height:16px}.explore-more-btn:hover svg{transform:translate(4px)}.live-lessons .container{max-width:100%;width:100%;margin:0 auto;padding:0 var(--spacing-4);position:relative;z-index:1;display:flex;flex-direction:column;align-items:center}@media (max-width: 1280px){.live-lessons .container{max-width:100%}}@media (max-width: 1024px){.container{max-width:768px}}@media (max-width: 768px){.live-lessons 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