@import"https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap";:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--primary-purple: #a435f0;--text-black: #2d2f31;--text-gray: #6a6f73;--star-yellow: #e59819;--premium-bg: #a435f0;--bestseller-bg: #eceb98;--bestseller-bg-real: #c0fbfd;--bestseller-text: #1e605e;--price-black: #2d2f31;--bg-white: #ffffff;--body-bg: #ffffff}body{font-family:Roboto,sans-serif;background-color:var(--body-bg);color:var(--text-black)}.app-container{max-width:100%}.navbar{border-bottom:1px solid #d1d7dc;padding:0 2.4rem}.main-container{max-width:134rem;margin:0 auto;padding:3.2rem 2.4rem}.section-header-group{margin-bottom:1.6rem}.section-header-group h2{font-size:2.4rem;font-weight:700;letter-spacing:-.02rem;margin-bottom:1.6rem;color:var(--text-black)}.section-header-group h3{font-size:1.9rem;font-weight:700;margin-bottom:2.4rem;color:var(--text-black)}.continue-learning-card{display:flex;border:1px solid #d1d7dc;background:#fff;padding:0;margin-bottom:4.8rem;width:fit-content;box-shadow:0 2px 4px #00000014;cursor:pointer;transition:box-shadow .2s}.continue-learning-card:hover{box-shadow:0 4px 12px #0000001f}.cl-thumbnail{width:260px;height:145px;background-color:#2d2f31;position:relative;display:flex;align-items:center;justify-content:center}.cl-overlay{position:absolute;inset:0;background:#0006;display:flex;align-items:center;justify-content:center}.play-circle{background:#fff;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;padding-left:4px}.cl-info{padding:1.6rem;display:flex;flex-direction:column;justify-content:center;max-width:400px}.cl-course-title{font-size:1.6rem;font-weight:700;line-height:1.4;margin-bottom:.8rem}.cl-lecture-title{font-size:1.4rem;font-weight:400;margin-bottom:.8rem;display:block}.cl-meta{font-size:1.2rem;color:var(--text-gray)}.course-carousel{display:flex;gap:1.6rem;overflow-x:auto;padding-bottom:2rem;scroll-behavior:smooth;-ms-overflow-style:none;scrollbar-width:none}.course-carousel::-webkit-scrollbar{display:none}.course-card-new{min-width:266px;max-width:266px;display:flex;flex-direction:column;cursor:pointer;background:transparent}.cc-thumbnail{width:100%;aspect-ratio:16/9;background-color:#1c1d1f;margin-bottom:.8rem;position:relative;border:1px solid #d1d7dc}.cc-thumbnail img{width:100%;height:100%;object-fit:cover}.cc-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#fff}.cc-details{display:flex;flex-direction:column;gap:.4rem}.cc-title{font-size:1.6rem;font-weight:700;line-height:1.2;color:var(--text-black);display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;height:3.8rem}.cc-instructor{font-size:1.2rem;color:var(--text-gray);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cc-rating-row{display:flex;align-items:center;gap:.4rem}.rating-number{font-weight:700;font-size:1.4rem;color:#b4690e}.rating-stars{display:flex;align-items:center}.star-icon{width:1.2rem;height:1.2rem;fill:var(--star-yellow);color:var(--star-yellow)}.rating-count{font-size:1.2rem;color:var(--text-gray)}.cc-price-row{display:flex;align-items:center;gap:.8rem;margin-top:.4rem}.current-price{font-weight:700;font-size:1.6rem;color:var(--price-black)}.original-price{font-size:1.4rem;color:var(--text-gray);text-decoration:line-through}.cc-badges{display:flex;gap:.8rem;margin-top:.4rem}.badge{font-size:1.2rem;font-weight:700;padding:.4rem .8rem;border-radius:.4rem;line-height:1}.badge-premium{background-color:#a435f0;background-color:#f3e8fc;background:#6a25c5;color:#fff;border-radius:2px}.badge-bestseller{background-color:#c0fbfd;color:#1e605e;border-radius:2px}.carousel-nav-btn{position:absolute;right:0;top:50%;transform:translateY(-50%);width:4.8rem;height:4.8rem;border-radius:50%;background:#1c1d1f;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 2px 4px #0003;z-index:2;border:1px solid white}.carousel-wrapper{position:relative}html{font-size:62.5%}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000}.modal-content{background:#fff;width:100%;max-width:500px;border-radius:8px;box-shadow:0 4px 12px #00000026;animation:slideDown .3s ease-out}@keyframes slideDown{0%{transform:translateY(-20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{padding:1.6rem;border-bottom:1px solid #d1d7dc;display:flex;justify-content:space-between;align-items:center}.modal-header h2{font-size:1.8rem;font-weight:700}.close-btn{background:none;border:none;cursor:pointer;padding:.4rem}.modal-body{padding:2.4rem}.btn-primary{background-color:#a435f0;color:#fff;border:none;padding:1.2rem 2.4rem;font-weight:700;font-size:1.4rem;cursor:pointer;transition:background-color .2s}.btn-primary:hover{background-color:#8710d8}.btn-secondary{background:transparent;color:#2d2f31;border:1px solid transparent;padding:1.2rem 2.4rem;font-weight:700;font-size:1.4rem;cursor:pointer}.btn-secondary:hover{background-color:#0000000d}.player-page{display:flex;flex-direction:column;height:100vh;font-family:LearnIt Sans,-apple-system,BlinkMacSystemFont,Roboto,sans-serif;background-color:#fff;overflow:hidden}.player-header{background-color:#1c1d1f;color:#fff;height:5.6rem;display:flex;align-items:center;padding:0 1.6rem;justify-content:space-between;border-bottom:1px solid #3e4143;flex-shrink:0;z-index:100}.player-header-left{display:flex;align-items:center;gap:1.6rem;flex:1}.player-header-title{font-weight:700;font-size:1.4rem;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:600px;border-left:1px solid #3e4143;padding-left:1.6rem;line-height:1.2}.player-header-right{display:flex;align-items:center;gap:1.6rem}.header-btn-dark{background:transparent;color:#fff;border:1px solid #fff;padding:0 1.2rem;height:3.4rem;font-weight:700;font-size:1.4rem;cursor:pointer;display:flex;align-items:center;gap:.8rem;white-space:nowrap}.header-btn-dark:hover{background-color:#ffffff1a}.header-icon-btn{background:transparent;border:1px solid #fff;color:#fff;cursor:pointer;padding:0;width:3.4rem;height:3.4rem;display:flex;align-items:center;justify-content:center}.header-icon-btn:hover{background-color:#ffffff1a}.player-body{display:flex;flex:1;overflow:hidden;position:relative}.video-container-left{flex:1;display:flex;flex-direction:column;overflow-y:auto;background-color:#fff}.video-frame{background-color:#000;width:100%;aspect-ratio:16/9;display:flex;justify-content:center;align-items:center;position:relative}.video-frame video{width:100%;height:100%;outline:none}.info-tabs-container{border-bottom:1px solid #d1d7dc;margin-top:2.4rem;padding:0 2.4rem}.info-tabs{display:flex;gap:2.4rem}.info-tab{padding:.8rem .4rem;font-weight:700;font-size:1.4rem;color:#6a6f73;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}.info-tab.active{color:#2d2f31;border-bottom:2px solid #2d2f31}.course-info-content{padding:3.2rem;max-width:100rem}.course-big-title{font-size:2.4rem;font-weight:700;margin-bottom:1.6rem;color:#2d2f31;line-height:1.2}.course-stats-row{display:flex;gap:1.6rem;font-size:1.4rem;align-items:center;margin-bottom:2.4rem}.rating-pill{font-weight:700;color:#b4690e;display:flex;align-items:center;gap:.4rem}.rating-stars svg{fill:#b4690e;stroke:#b4690e}.course-sidebar-right{width:40rem;background-color:#fff;border-left:1px solid #d1d7dc;display:flex;flex-direction:column;flex-shrink:0;z-index:20}.sidebar-tabs{display:flex;border-bottom:1px solid #d1d7dc;align-items:center;background:#fff;padding:0 .8rem}.sidebar-tab{padding:1.6rem;font-weight:700;font-size:1.4rem;color:#6a6f73;cursor:pointer;background-color:transparent;border-bottom:4px solid transparent}.sidebar-tab.active{color:#2d2f31;border-bottom:4px solid #2d2f31}.sidebar-content{flex:1;overflow-y:auto}.section-container{border-bottom:1px solid #d1d7dc}.section-header{background-color:#f7f9fa;padding:1.2rem 1.6rem;font-weight:700;display:flex;justify-content:space-between;align-items:flex-start;cursor:pointer}.section-title-text{font-size:1.4rem;color:#2d2f31;display:block}.section-items{background-color:#fff;padding-left:1.6rem}.lesson-item{display:flex;padding:.8rem 1.6rem;cursor:pointer;align-items:flex-start;gap:1.2rem;background-color:#fff;min-height:4.8rem}.lesson-item:hover{background-color:#e6f2f5}.lesson-item.active{background-color:#e6f2f5;border-left:4px solid transparent}.lesson-checkbox{width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:.2rem;color:#2d2f31}.lesson-info{flex:1;display:flex;flex-direction:column;justify-content:center}.lesson-title{font-size:1.4rem;color:#2d2f31;line-height:1.4;margin-bottom:.4rem}.lesson-meta{font-size:1.2rem;color:#6a6f73;display:flex;align-items:center;gap:.4rem}.video-icon-small{display:flex;align-items:center;gap:.4rem}