@import"https://fonts.googleapis.com/css2?family=Quicksand:wght@400;500;600;700&family=Pacifico&family=Nunito:wght@300;400;500;600;700&display=swap";:root{--primary-orange: #e89a3c;--primary-orange-dark: #d68b2d;--dark-bg: #1e2a3a;--white: #ffffff;--light-gray: #f5f5f5;--text-dark: #333333;--text-gray: #888888;--text-light: #cccccc;--font-primary: "Nunito", sans-serif;--font-logo: "Quicksand", sans-serif;--font-cursive: "Pacifico", cursive;--container-max-width: 1200px;--header-height: 80px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-primary);color:var(--text-dark);line-height:1.6;background-color:var(--white)}a{text-decoration:none;color:inherit;transition:color .3s ease}a:hover{color:var(--primary-orange)}ul{list-style:none}img{max-width:100%;height:auto}.container{max-width:var(--container-max-width);margin:0 auto;padding:0 20px}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.section-title{font-size:2.5rem;font-weight:400;font-family:var(--font-cursive)}.section-title span{color:var(--primary-orange)}.see-more{color:var(--primary-orange);font-weight:600;display:flex;align-items:center;gap:5px;transition:transform .3s ease}.see-more:hover{transform:translate(5px)}.btn{padding:10px 25px;border-radius:25px;border:none;cursor:pointer;font-weight:600;font-family:var(--font-primary);transition:all .3s ease}.btn-primary{background-color:var(--primary-orange);color:var(--white)}.btn-primary:hover{background-color:var(--primary-orange-dark);transform:translateY(-2px)}.course-card{background:var(--white);border-radius:15px;overflow:hidden;box-shadow:0 4px 15px #0000001a;transition:transform .3s ease,box-shadow .3s ease}.course-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.course-card-image{width:100%;height:200px;object-fit:cover}.course-card-content{padding:15px}.course-card-title{font-size:1rem;font-weight:600;color:var(--text-dark);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.fade-in-up{animation:fadeInUp .6s ease forwards}.slide-in{animation:slideIn .5s ease forwards}@media(max-width:768px){.section-title{font-size:1.8rem}:root{--header-height: 60px}}.header{position:sticky;top:0;left:0;right:0;height:var(--header-height);background-color:var(--white);box-shadow:0 2px 10px #0000001a;z-index:1000}.header-container{max-width:var(--container-max-width);margin:0 auto;padding:0 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15px;font-size:1rem;font-weight:600;color:var(--text-dark);border-radius:8px;transition:all .3s ease}.nav-list li a:hover{background-color:var(--light-gray);color:var(--primary-orange)}.header-right{display:flex;align-items:center;gap:10px}.search-box{display:none;align-items:center;background-color:var(--light-gray);border-radius:25px;padding:5px 5px 5px 15px;transition:all .3s ease}.search-box.active{display:flex;position:absolute;top:100%;left:20px;right:20px;background:var(--white);padding:10px 15px;box-shadow:0 4px 15px #0000001a;border-radius:8px}.search-input{border:none;outline:none;background:transparent;padding:8px;font-size:.95rem;font-family:var(--font-primary);width:100%;min-width:200px}.search-btn{background-color:var(--primary-orange);color:var(--white);border:none;padding:8px 20px;border-radius:20px;cursor:pointer;font-weight:600;font-family:var(--font-primary);transition:background-color .3s ease}.search-btn:hover{background-color:var(--primary-orange-dark)}.icon-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-dark);padding:8px;display:flex;align-items:center;justify-content:center;transition:color .3s ease}.icon-btn:hover{color:var(--primary-orange)}.menu-overlay{position:fixed;top:var(--header-height);left:0;right:0;bottom:0;background:#00000080;z-index:998}@media(min-width:992px){.menu-toggle{display:none}.nav-menu{display:block;position:static;width:auto;height:auto;background:transparent;padding:0;box-shadow:none}.nav-list{flex-direction:row;gap:30px}.nav-list li a{padding:5px 0}.nav-list li a:hover{background-color:transparent}.search-box{display:flex;position:static;box-shadow:none}.search-toggle,.menu-overlay{display:none}}@media(max-width:768px){.logo{font-size:1.6rem}}.footer{background-color:var(--dark-bg);color:var(--white);padding:50px 0 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ease;text-decoration:none}.zalo-button:hover{transform:translateY(-3px);box-shadow:0 6px 25px #0003}.zalo-icon{width:45px;height:45px;flex-shrink:0}.zalo-icon svg{width:100%;height:100%}.zalo-text{display:flex;flex-direction:column;line-height:1.3}.zalo-text span{font-size:.85rem;font-weight:600;color:var(--text-dark)}.zalo-text small{font-size:.75rem;color:var(--text-gray)}@media(max-width:768px){.zalo-button{padding:8px;border-radius:50%}.zalo-text{display:none}.zalo-icon{width:40px;height:40px}}.scroll-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background-color:var(--primary-orange);color:var(--white);border:none;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.5rem;opacity:0;visibility:hidden;transform:translateY(20px);transition:all .3s ease;z-index:998;box-shadow:0 4px 15px #e89a3c66}.scroll-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{background-color:var(--primary-orange-dark);transform:translateY(-3px);box-shadow:0 6px 20px #e89a3c80}@media(max-width:768px){.scroll-to-top{bottom:20px;right:20px;width:45px;height:45px;font-size:1.3rem}}:root{--swiper-theme-color: #007aff}:host{position:relative;display:block;margin-left:auto;margin-right:auto;z-index:1}.swiper{margin-left:auto;margin-right:auto;position:relative;overflow:hidden;list-style:none;padding:0;z-index:1;display:block}.swiper-vertical>.swiper-wrapper{flex-direction:column}.swiper-wrapper{position:relative;width:100%;height:100%;z-index:1;display:flex;transition-property:transform;transition-timing-function:var(--swiper-wrapper-transition-timing-function, initial);box-sizing:content-box}.swiper-android .swiper-slide,.swiper-ios 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.swiper-pagination-bullet-active{background:var(--white);width:25px;border-radius:5px}.banner-slide{min-height:400px;padding:40px 20px}.banner-content{max-width:var(--container-max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:40px}.banner-text{flex:1;max-width:500px}.brand-badge{display:inline-flex;align-items:center;font-size:1.2rem;font-weight:700;font-family:var(--font-logo);margin-bottom:10px;color:var(--primary-orange)}.banner-subtitle{font-size:.9rem;text-transform:uppercase;letter-spacing:2px;margin-bottom:5px;opacity:.9;font-weight:600}.banner-title{font-size:3rem;font-weight:800;line-height:1.1;margin-bottom:15px;text-transform:uppercase;color:var(--primary-orange);text-shadow:2px 2px 4px rgba(0,0,0,.2);font-family:var(--font-primary)}.banner-description{font-size:1.1rem;margin-bottom:20px;font-weight:600}.banner-features{list-style:none;padding:0;margin:0}.banner-features li{display:flex;align-items:flex-start;gap:8px;margin-bottom:8px;font-size:.95rem;line-height:1.4;font-weight:500}.feature-icon{color:var(--primary-orange);font-weight:700}.banner-image{flex:1;display:flex;justify-content:center;align-items:center}.banner-image img{max-width:100%;max-height:350px;object-fit:cover;border-radius:15px;box-shadow:0 10px 30px #0000004d;transition:transform .5s ease}.banner-image img:hover{transform:scale(1.03)}@media(max-width:992px){.banner-content{flex-direction:column;text-align:center}.banner-text{max-width:100%}.banner-title{font-size:2.2rem}.banner-features li{justify-content:center}.banner-image img{max-height:280px}}@media(max-width:576px){.banner-slide{min-height:350px;padding:30px 15px}.banner-title{font-size:1.8rem}.banner-features li{font-size:.85rem}}.featured-courses{padding:60px 0;background-color:var(--white)}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px}.course-card-image{width:100%;height:220px;object-fit:cover;transition:transform .4s ease}.course-card:hover .course-card-image{transform:scale(1.08)}.course-badge{position:absolute;top:15px;right:15px;background:linear-gradient(135deg,#fff,#f8f8f8);padding:10px 15px;border-radius:10px;box-shadow:0 4px 15px #00000026;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:.75rem;font-weight:600}.course-badge span{color:var(--primary-orange)}.course-badge .badge-text{color:#4caf50;font-size:.7rem}.course-badge .flag{font-size:.9rem}.course-card-title{font-size:1.1rem;font-weight:600;color:var(--text-dark);margin-bottom:8px;transition:color .3s ease}.course-card:hover .course-card-title{color:var(--primary-orange)}.course-subtitle{font-size:.9rem;color:var(--text-gray)}@media(max-width:768px){.featured-courses{padding:40px 0}.courses-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}.course-card-image{height:180px}}.new-articles{padding:60px 0;background-color:var(--light-gray)}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}.article-card{background:var(--white);border-radius:15px;overflow:hidden;box-shadow:0 4px 15px #0000000f;transition:all .3s ease;animation:fadeInUp .6s ease forwards;opacity:0}.article-card:hover{transform:translateY(-6px);box-shadow:0 10px 25px #0000001f}.article-image-wrapper{position:relative;overflow:hidden}.article-image{width:100%;height:180px;object-fit:cover;transition:transform .4s ease}.article-card:hover .article-image{transform:scale(1.08)}.article-content{padding:20px}.article-date{font-size:.8rem;color:var(--primary-orange);font-weight:500}.article-title{font-size:1rem;font-weight:600;color:var(--text-dark);margin:10px 0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .3s ease}.article-card:hover .article-title{color:var(--primary-orange)}.article-excerpt{font-size:.9rem;color:var(--text-gray);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}@media(max-width:768px){.new-articles{padding:40px 0}.articles-grid{grid-template-columns:1fr;gap:20px}.article-image{height:200px}}.student-products{padding:60px 0;background-color:var(--white)}.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}.product-item{animation:fadeInUp .6s ease forwards;opacity:0}.product-image-wrapper{position:relative;overflow:hidden;border-radius:12px;cursor:pointer}.product-image{width:100%;height:180px;object-fit:cover;transition:transform .4s ease}.product-item:hover .product-image{transform:scale(1.1)}.product-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 100%);padding:30px 15px 15px;opacity:0;transition:opacity .3s ease}.product-item:hover .product-overlay{opacity:1}.student-name{color:var(--white);font-size:.9rem;font-weight:500}.empty-state{text-align:center;padding:60px 20px;color:var(--text-gray)}.empty-state p{font-size:1.1rem}@media(max-width:768px){.student-products{padding:40px 0}.products-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px}.product-image{height:150px}}.register-page{padding:40px 0 60px;min-height:calc(100vh - var(--header-height) - 300px)}.page-title{font-size:2.5rem;font-weight:400;margin-bottom:30px;font-family:var(--font-cursive)}.register-content{max-width:800px;line-height:1.8}.register-content p{margin-bottom:20px;font-size:1.05rem;color:var(--text-dark)}.welcome-text{font-size:1.2rem!important;color:var(--text-dark)}.register-content a{color:#1a73e8;text-decoration:underline}.register-content a:hover{color:var(--primary-orange)}.register-actions{margin-top:40px}@media(max-width:768px){.register-page{padding:30px 0 40px}.page-title{font-size:1.8rem}.register-content p{font-size:1rem}}.signin-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);padding:40px 20px}.signin-container{width:100%;max-width:450px}.signin-card{background:var(--white);border-radius:20px;padding:40px;box-shadow:0 10px 40px #0000001a}.signin-header{text-align:center;margin-bottom:30px}.signin-logo{display:inline-flex;align-items:baseline;font-size:2.2rem;font-weight:700;font-family:var(--font-logo);text-decoration:none;margin-bottom:10px}.signin-logo .logo-text,.signin-logo .logo-corner{color:var(--primary-orange)}.signin-logo .logo-tm{font-size:.6rem;color:var(--text-gray);margin-left:2px}.back-home{display:block;color:var(--text-gray);font-size:.95rem;margin-top:8px}.back-home:hover{color:var(--primary-orange)}.signin-title{font-size:1.8rem;font-weight:700;color:var(--dark-bg);text-align:center;margin-bottom:15px;font-family:var(--font-primary)}.signin-subtitle{text-align:center;color:var(--text-gray);margin-bottom:30px;font-size:.95rem}.register-link{color:var(--primary-orange);font-weight:600}.register-link:hover{text-decoration:underline}.signin-form,.form-group{margin-bottom:20px}.form-input{width:100%;padding:15px 20px;border:none;background-color:#f5f5f5;border-radius:10px;font-size:1rem;font-family:var(--font-primary);transition:all .3s ease}.form-input:focus{outline:none;background-color:#ebebeb;box-shadow:0 0 0 2px #e89a3c4d}.password-group{position:relative}.password-toggle{position:absolute;right:15px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-gray);cursor:pointer;font-size:1.2rem;display:flex;align-items:center;justify-content:center}.password-toggle:hover{color:var(--primary-orange)}.btn-signin{width:100%;padding:15px;background-color:var(--primary-orange);color:var(--white);border:none;border-radius:10px;font-size:1.1rem;font-weight:700;font-family:var(--font-primary);cursor:pointer;transition:all .3s ease}.btn-signin:hover{background-color:var(--primary-orange-dark);transform:translateY(-2px);box-shadow:0 4px 15px #e89a3c66}.forgot-password{text-align:right;margin-top:15px}.forgot-password a{color:var(--primary-orange);font-size:.95rem;font-weight:600}.forgot-password a:hover{text-decoration:underline}.signin-divider{display:flex;align-items:center;margin:25px 0}.signin-divider:before,.signin-divider:after{content:"";flex:1;height:1px;background-color:#e0e0e0}.signin-divider span{padding:0 15px;color:var(--text-gray);font-size:.9rem}.btn-facebook{width:100%;padding:15px;background-color:#1877f2;color:var(--white);border:none;border-radius:10px;font-size:1rem;font-weight:600;font-family:var(--font-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:all .3s ease}.btn-facebook:hover{background-color:#166fe5;transform:translateY(-2px);box-shadow:0 4px 15px #1877f266}.btn-facebook svg{font-size:1.3rem}@media(max-width:480px){.signin-card{padding:30px 25px}.signin-title{font-size:1.5rem}.signin-logo{font-size:1.8rem}}.course-list-page{padding:40px 0 60px}.section-title-simple{font-size:1.5rem;font-weight:500;font-style:italic;color:var(--dark-bg);margin-bottom:25px}.featured-section{margin-bottom:50px}.featured-courses-slider{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:25px}.featured-course-card{position:relative;border-radius:15px;overflow:hidden;box-shadow:0 4px 15px #0000001a;transition:all .3s ease}.featured-course-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.featured-course-card img{width:100%;height:250px;object-fit:cover}.featured-course-card h3{position:absolute;bottom:0;left:0;right:0;padding:20px;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 100%);color:var(--white);font-size:1rem;font-weight:500}.course-badge{position:absolute;top:15px;right:15px;padding:5px 12px;border-radius:20px;color:var(--white);font-size:.8rem;font-weight:600}.all-courses-section{padding-top:20px}.category-filter{margin-bottom:30px}.category-filter h3{font-size:1.1rem;font-weight:500;color:var(--text-dark);margin-bottom:15px}.category-list{display:flex;flex-wrap:wrap;gap:10px}.category-btn{padding:10px 20px;border:2px solid #e0e0e0;background:var(--white);border-radius:25px;font-size:.9rem;color:var(--text-dark);cursor:pointer;transition:all .3s ease}.category-btn:hover{border-color:var(--primary-orange);color:var(--primary-orange)}.category-btn.active{border-color:var(--primary-orange);color:var(--primary-orange);background-color:#e89a3c1a}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}.course-card{background:var(--white);border-radius:15px;overflow:hidden;box-shadow:0 4px 15px #00000014;transition:all .3s ease;animation:fadeInUp .6s ease forwards;opacity:0}.course-card:hover{transform:translateY(-8px);box-shadow:0 12px 30px #00000026}.course-image-wrapper{position:relative;overflow:hidden}.course-card img{width:100%;height:200px;object-fit:cover;transition:transform .4s ease}.course-card:hover img{transform:scale(1.08)}.course-info{padding:20px}.course-info h3{font-size:1rem;font-weight:500;color:var(--text-dark);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.course-card:hover .course-info h3{color:var(--primary-orange)}.no-courses{text-align:center;padding:60px 20px;color:var(--text-gray)}.no-courses p{font-size:1.1rem}@media(max-width:768px){.course-list-page{padding:30px 0 40px}.featured-courses-slider{grid-template-columns:1fr}.featured-course-card img{height:200px}.courses-grid{grid-template-columns:1fr}.category-btn{padding:8px 15px;font-size:.85rem}}.about-page{padding:60px 0;background-color:var(--light-gray);min-height:calc(100vh - var(--header-height) - 300px)}.about-content{max-width:800px;margin:0 auto;background:var(--white);padding:50px;border-radius:20px;box-shadow:0 4px 20px #00000014}.about-greeting{font-family:var(--font-cursive);font-size:2.5rem;font-weight:400;color:var(--dark-bg);margin-bottom:30px}.about-content p{font-size:1.05rem;line-height:1.9;color:var(--text-dark);margin-bottom:20px}.about-quote{background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-left:4px solid var(--primary-orange);padding:25px 30px;margin:30px 0;font-style:italic;font-size:1.1rem;color:var(--dark-bg);border-radius:0 10px 10px 0}.about-section{margin-top:40px;padding-top:30px;border-top:1px solid #e0e0e0}.about-section h3{font-size:1.1rem;font-weight:700;color:var(--dark-bg);margin-bottom:20px;text-transform:uppercase;letter-spacing:.5px}.about-section ul{list-style:none;padding:0}.about-section ul li{position:relative;padding-left:25px;margin-bottom:15px;font-size:.95rem;line-height:1.7;color:var(--text-dark)}.about-section ul li:before{content:"•";position:absolute;left:0;color:var(--primary-orange);font-size:1.2rem;font-weight:700}@media(max-width:768px){.about-page{padding:30px 0}.about-content{padding:30px 25px;border-radius:15px}.about-greeting{font-size:2rem}.about-content p{font-size:1rem}.about-quote{padding:20px 25px;font-size:1rem}}.blog-page{padding:40px 0 60px}.blog-title{font-size:2rem;font-weight:600;color:var(--dark-bg);margin-bottom:30px}.blog-title span{color:var(--primary-orange)}.blog-categories{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:25px}.category-pill{padding:10px 20px;border:2px solid #e0e0e0;background:var(--white);border-radius:25px;font-size:.9rem;color:var(--text-dark);cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:5px}.category-pill:hover{border-color:var(--primary-orange);color:var(--primary-orange)}.category-pill.active{border-color:var(--primary-orange);color:var(--primary-orange);background-color:#e89a3c1a}.category-pill.see-more{color:var(--text-dark)}.category-pill.see-more:hover{color:var(--primary-orange);border-color:var(--primary-orange)}.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px}.blog-card{background:var(--white);border-radius:15px;overflow:hidden;box-shadow:0 4px 15px #00000014;transition:all .3s ease;animation:fadeInUp .6s ease forwards;opacity:0}.blog-card:hover{transform:translateY(-8px);box-shadow:0 12px 30px #00000026}.blog-image-wrapper{position:relative;overflow:hidden}.blog-card img{width:100%;height:200px;object-fit:cover;transition:transform .4s ease}.blog-card:hover img{transform:scale(1.08)}.blog-card-content{padding:20px}.blog-date{font-size:.85rem;color:var(--primary-orange);font-weight:500}.blog-card-title{font-size:1.1rem;font-weight:600;color:var(--text-dark);margin:10px 0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .3s ease}.blog-card:hover .blog-card-title{color:var(--primary-orange)}.blog-excerpt{font-size:.9rem;color:var(--text-gray);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.no-posts{text-align:center;padding:60px 20px;color:var(--text-gray)}.no-posts p{font-size:1.1rem}.breadcrumb{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-size:.9rem}.breadcrumb a{color:var(--text-gray);transition:color .3s ease}.breadcrumb a:hover{color:var(--primary-orange)}.breadcrumb span{color:var(--text-gray)}.breadcrumb .current{color:var(--primary-orange);font-weight:500}.back-to-blog{text-align:center;margin-top:40px}.back-to-blog .btn{display:inline-flex;align-items:center;gap:8px}@media(max-width:768px){.blog-page{padding:30px 0 40px}.blog-title{font-size:1.6rem}.blog-categories{gap:8px}.category-pill{padding:8px 15px;font-size:.85rem}.blog-grid{grid-template-columns:1fr}}.project-list-page{padding:40px 0 60px}.page-title{font-size:2.5rem;font-weight:400;font-family:var(--font-cursive)}.page-title span{color:var(--primary-orange)}.display-count{color:var(--text-gray);font-size:.95rem;margin-bottom:25px}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px;margin-bottom:40px}.project-card{animation:fadeInUp .5s ease forwards;opacity:0}.project-image-wrapper{position:relative;overflow:hidden;border-radius:15px;aspect-ratio:1;cursor:pointer}.project-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}.project-card:hover img{transform:scale(1.1)}.project-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 60%);opacity:0;transition:opacity .3s ease;display:flex;align-items:flex-end;padding:15px}.project-card:hover .project-overlay{opacity:1}.project-info{color:var(--white)}.student-name{font-weight:600;font-size:.95rem;margin-bottom:3px}.course-name{font-size:.85rem;opacity:.9}.load-more{text-align:center;margin-top:20px}@media(max-width:768px){.project-list-page{padding:30px 0 40px}.page-title{font-size:1.8rem}.projects-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px}}.admin-login{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.admin-login-container{width:100%;max-width:400px}.admin-login-card{background:#fff;border-radius:15px;padding:40px;box-shadow:0 10px 40px #0003}.admin-login-title{font-size:2rem;font-weight:700;text-align:center;margin-bottom:30px;color:var(--text-dark)}.admin-login-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-weight:600;color:var(--text-dark);font-size:.9rem}.form-group input{padding:12px 15px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s ease}.form-group input:focus{outline:none;border-color:var(--primary-orange)}.btn-block{width:100%;padding:12px;font-size:1rem;margin-top:10px}.error-message{background:#fee;color:#c33;padding:10px;border-radius:8px;text-align:center;font-size:.9rem}.admin-layout{display:flex;min-height:100vh;background:#f5f7fa}.admin-sidebar{width:260px;background:var(--dark-bg);color:#fff;display:flex;flex-direction:column;transition:all .3s ease;position:fixed;height:100vh;left:0;top:0;z-index:1000;overflow-y:auto}.admin-sidebar.closed{width:70px}.admin-sidebar-header{padding:20px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.1)}.admin-logo{font-size:1.5rem;font-weight:700;color:var(--primary-orange);white-space:nowrap;overflow:hidden}.admin-sidebar.closed .admin-logo{display:none}.sidebar-toggle{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:5px;display:flex;align-items:center;justify-content:center}.admin-nav{flex:1;padding:20px 0;display:flex;flex-direction:column;gap:5px}.admin-nav-item{display:flex;align-items:center;gap:15px;padding:15px 20px;color:var(--text-light);text-decoration:none;transition:all .3s ease;border-left:3px solid transparent}.admin-nav-item:hover{background:#ffffff1a;color:#fff}.admin-nav-item.active{background:#e89a3c33;color:var(--primary-orange);border-left-color:var(--primary-orange)}.nav-icon{font-size:1.2rem;min-width:20px}.admin-sidebar.closed .admin-nav-item span{display:none}.admin-sidebar-footer{padding:20px;border-top:1px solid rgba(255,255,255,.1)}.admin-logout-btn{width:100%;display:flex;align-items:center;gap:15px;padding:15px;background:#ff00001a;border:none;color:#ff6b6b;border-radius:8px;cursor:pointer;font-size:1rem;transition:all .3s ease}.admin-logout-btn:hover{background:#f003}.admin-sidebar.closed .admin-logout-btn span{display:none}.admin-content{flex:1;margin-left:260px;display:flex;flex-direction:column;transition:margin-left .3s ease}.admin-sidebar.closed~.admin-content{margin-left:70px}.admin-header{background:#fff;padding:20px 30px;box-shadow:0 2px 10px #0000000d;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100}.mobile-menu-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-dark)}.admin-header-right{display:flex;align-items:center;gap:20px}.admin-welcome{color:var(--text-dark);font-weight:600}.admin-main{flex:1;padding:30px}@media(max-width:768px){.admin-sidebar{transform:translate(-100%)}.admin-sidebar.open{transform:translate(0)}.admin-content{margin-left:0}.mobile-menu-toggle{display:block}}.admin-dashboard{max-width:1400px}.dashboard-header{margin-bottom:30px}.dashboard-header h1{font-size:2rem;font-weight:700;color:var(--text-dark);margin-bottom:5px}.dashboard-header p{color:var(--text-gray);font-size:1rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px}.stat-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d;transition:transform .3s ease,box-shadow .3s ease}.stat-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.stat-icon{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.stat-change{font-size:.85rem;color:#43e97b;font-weight:600}.stat-card-body{display:flex;flex-direction:column;gap:5px}.stat-value{font-size:2rem;font-weight:700;color:var(--text-dark)}.stat-title{color:var(--text-gray);font-size:.9rem}.dashboard-charts{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:20px;margin-bottom:30px}.chart-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d}.chart-card h3{font-size:1.2rem;font-weight:600;color:var(--text-dark);margin-bottom:20px}.chart-placeholder{height:250px;display:flex;align-items:center;justify-content:center;background:#f5f7fa;border-radius:8px;color:var(--text-gray)}.recent-activity{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d}.recent-activity h3{font-size:1.2rem;font-weight:600;color:var(--text-dark);margin-bottom:20px}.activity-list{display:flex;flex-direction:column;gap:15px}.activity-item{display:flex;gap:15px;padding:15px;background:#f5f7fa;border-radius:8px;transition:background .3s ease}.activity-item:hover{background:#e9ecef}.activity-icon{font-size:1.5rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:50%}.activity-content{flex:1}.activity-content p{color:var(--text-dark);margin-bottom:5px}.activity-time{font-size:.85rem;color:var(--text-gray)}@media(max-width:768px){.stats-grid,.dashboard-charts{grid-template-columns:1fr}}.user-management{max-width:1400px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.page-header h1{font-size:2rem;font-weight:700;color:var(--text-dark)}.search-bar{position:relative;margin-bottom:20px}.search-icon{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--text-gray)}.search-bar input{width:100%;padding:12px 15px 12px 45px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s ease}.search-bar input:focus{outline:none;border-color:var(--primary-orange)}.table-container{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px #0000000d;overflow-x:auto}.data-table{width:100%;border-collapse:collapse}.data-table thead{background:#f5f7fa}.data-table th{padding:15px;text-align:left;font-weight:600;color:var(--text-dark);font-size:.9rem;text-transform:uppercase}.data-table td{padding:15px;border-top:1px solid #e0e0e0;color:var(--text-dark)}.data-table tbody tr:hover{background:#f9f9f9}.status-badge{padding:5px 12px;border-radius:20px;font-size:.85rem;font-weight:600}.status-badge.active{background:#d4edda;color:#155724}.status-badge.inactive{background:#f8d7da;color:#721c24}.action-buttons{display:flex;gap:10px}.btn-icon{background:none;border:none;font-size:1.2rem;cursor:pointer;padding:8px;border-radius:6px;transition:all .3s ease;color:var(--text-gray)}.btn-icon:hover{background:#f5f7fa;color:var(--primary-orange)}.btn-icon.btn-danger:hover{background:#fee;color:#c33}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000}.modal-content{background:#fff;border-radius:12px;padding:30px;width:90%;max-width:500px;max-height:90vh;overflow-y:auto}.modal-content h2{font-size:1.5rem;font-weight:700;margin-bottom:20px;color:var(--text-dark)}.modal-content .form-group{margin-bottom:20px}.modal-content label{display:block;margin-bottom:8px;font-weight:600;color:var(--text-dark)}.modal-content input,.modal-content select{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s ease}.modal-content input:focus,.modal-content select:focus{outline:none;border-color:var(--primary-orange)}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:25px}.btn-secondary{background:#e0e0e0;color:var(--text-dark)}.btn-secondary:hover{background:#d0d0d0}.course-management{max-width:1400px}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.course-card-admin{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px #0000000d;transition:transform .3s ease,box-shadow .3s ease}.course-card-admin:hover{transform:translateY(-5px);box-shadow:0 5px 20px #0000001a}.course-card-image{position:relative;width:100%;height:200px;overflow:hidden}.course-card-image img{width:100%;height:100%;object-fit:cover}.featured-badge{position:absolute;top:10px;right:10px;background:var(--primary-orange);color:#fff;padding:5px 10px;border-radius:20px;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:5px}.course-card-content{padding:20px}.course-card-content h3{font-size:1.2rem;font-weight:600;color:var(--text-dark);margin-bottom:10px}.course-description{color:var(--text-gray);font-size:.9rem;margin-bottom:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.course-price{display:flex;gap:10px;align-items:center;margin-bottom:10px}.price-old{color:var(--text-gray);text-decoration:line-through;font-size:.9rem}.price-new{color:var(--primary-orange);font-weight:700;font-size:1.1rem}.course-stats{margin-bottom:15px;color:var(--text-gray);font-size:.9rem}.course-actions{display:flex;gap:8px;flex-wrap:wrap}.btn-sm{padding:8px 15px;font-size:.85rem}.btn-warning{background:#ffc107;color:#000}.btn-warning:hover{background:#ffb300}.btn-danger{background:#dc3545;color:#fff}.btn-danger:hover{background:#c82333}.modal-large{max-width:700px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-group textarea{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;font-family:inherit;resize:vertical;transition:border-color .3s ease}.form-group textarea:focus{outline:none;border-color:var(--primary-orange)}.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer}.checkbox-label input[type=checkbox]{width:auto;cursor:pointer}@media(max-width:768px){.courses-grid,.form-row{grid-template-columns:1fr}}.combo-management{max-width:1400px}.combos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:20px}.combo-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px #0000000d}.combo-image{width:100%;height:200px;overflow:hidden}.combo-image img{width:100%;height:100%;object-fit:cover}.combo-content{padding:20px}.combo-content h3{font-size:1.2rem;font-weight:600;margin-bottom:10px;color:var(--text-dark)}.combo-courses{margin:15px 0}.combo-courses ul{margin-top:8px;padding-left:20px}.combo-courses li{color:var(--text-gray);margin-bottom:5px}.combo-price{display:flex;gap:10px;align-items:center;margin:15px 0}.combo-stats{color:var(--text-gray);font-size:.9rem;margin-bottom:15px}.combo-actions{display:flex;gap:8px}.checkbox-list{display:flex;flex-direction:column;gap:10px;max-height:200px;overflow-y:auto;padding:10px;border:2px solid #e0e0e0;border-radius:8px}.order-management{max-width:1600px}.header-stats{display:flex;gap:20px;margin-top:15px}.stat-item{display:flex;align-items:center;gap:8px;padding:10px 15px;background:#fff;border-radius:8px;box-shadow:0 2px 5px #0000000d}.stat-label{color:var(--text-gray);font-size:.9rem}.stat-value{font-weight:700;color:var(--text-dark);font-size:1rem}.stat-value.warning{color:#ff9800}.stat-value.success{color:#28a745}.filters-section{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 2px 10px #0000000d}.filter-group{display:flex;justify-content:space-between;align-items:center;margin-top:15px;gap:15px;flex-wrap:wrap}.payment-filter{display:flex;align-items:center;gap:8px;color:var(--text-gray)}.filter-tabs{display:flex;gap:10px;flex-wrap:wrap}.filter-tab{padding:10px 20px;border:2px solid #e0e0e0;background:#fff;border-radius:8px;cursor:pointer;transition:all .3s ease;font-weight:600}.filter-tab:hover{border-color:var(--primary-orange)}.filter-tab.active{background:var(--primary-orange);color:#fff;border-color:var(--primary-orange)}.order-items{display:flex;flex-direction:column;gap:8px}.order-item{display:flex;align-items:center;gap:8px;padding:6px 10px;background:#f5f7fa;border-radius:8px}.item-type{font-size:1.2rem}.item-name{flex:1;font-weight:500;color:var(--text-dark)}.item-discount{background:#d4edda;color:#155724;padding:2px 8px;border-radius:12px;font-size:.75rem;font-weight:600}.customer-info{display:flex;flex-direction:column;gap:5px}.customer-name{display:flex;align-items:center;gap:6px;font-weight:600;color:var(--text-dark)}.customer-details{display:flex;flex-direction:column;gap:3px}.customer-details small{color:var(--text-gray);font-size:.85rem}.discount-info{display:flex;flex-direction:column;gap:5px}.discount-item{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--text-dark)}.discount-amount{color:#28a745;font-weight:600;margin-left:auto}.no-discount{color:var(--text-gray);font-style:italic;font-size:.85rem}.price-info{display:flex;flex-direction:column;gap:3px}.original-price{text-decoration:line-through;color:var(--text-gray);font-size:.85rem}.final-price{color:var(--primary-orange);font-size:1.1rem}.payment-info{display:flex;flex-direction:column;gap:5px}.payment-method{display:flex;align-items:center;gap:6px;font-weight:500;color:var(--text-dark)}.paid-time{color:#28a745;font-size:.85rem;display:flex;align-items:center;gap:4px}.time-info{display:flex;flex-direction:column;gap:5px}.created-time{display:flex;align-items:center;gap:6px;color:var(--text-gray);font-size:.9rem}.order-id{color:var(--primary-orange);font-family:monospace}.status-pending{background:#fff3cd;color:#856404}.status-approved{background:#d4edda;color:#155724}.status-rejected{background:#f8d7da;color:#721c24}.status-completed{background:#d1ecf1;color:#0c5460}.modal-extra-large{max-width:900px;max-height:90vh;overflow-y:auto}.order-details{display:flex;flex-direction:column;gap:25px}.detail-section h3{font-size:1.2rem;font-weight:600;margin-bottom:15px;color:var(--text-dark);border-bottom:2px solid #e0e0e0;padding-bottom:10px;display:flex;align-items:center;gap:8px}.detail-section p{margin-bottom:10px;color:var(--text-dark)}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.info-item{display:flex;flex-direction:column;gap:5px}.info-item strong{color:var(--text-gray);font-size:.9rem;font-weight:600}.info-item span{color:var(--text-dark);font-size:1rem}.total-amount{font-size:1.3rem;color:var(--primary-orange);font-weight:700}.items-table{width:100%;border-collapse:collapse}.items-table th,.items-table td{padding:12px;text-align:left;border-bottom:1px solid #e0e0e0}.items-table th{background:#f5f7fa;font-weight:600}.item-type-badge{padding:4px 10px;border-radius:12px;font-size:.85rem;font-weight:600}.item-type-badge.course{background:#d1ecf1;color:#0c5460}.item-type-badge.combo{background:#fff3cd;color:#856404}.original-price-cell{text-decoration:line-through;color:var(--text-gray)}.discount-badge{background:#d4edda;color:#155724;padding:4px 10px;border-radius:12px;font-size:.85rem;font-weight:600}.payment-details{display:flex;flex-direction:column;gap:20px}.payment-summary{background:#f5f7fa;border-radius:8px;padding:20px}.summary-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #e0e0e0}.summary-row:last-child{border-bottom:none}.discount-row{color:#28a745}.discount-row .discount{font-weight:600}.total-row{margin-top:10px;padding-top:15px;border-top:2px solid var(--primary-orange);font-size:1.1rem}.payment-method-detail{display:flex;flex-direction:column;gap:10px}.payment-method-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#e3f2fd;color:#1976d2;border-radius:8px;font-weight:600}.paid-time-badge{display:inline-flex;align-items:center;gap:6px;color:#28a745;font-weight:600}.order-notes{background:#fff3cd;padding:15px;border-radius:8px;border-left:4px solid #ffc107}.order-notes strong{display:block;margin-bottom:8px;color:var(--text-dark)}.order-notes p{color:var(--text-dark);margin:0;line-height:1.6}.qr-code-section{margin-top:15px}.qr-code-image{max-width:200px;height:auto;border:2px solid #e0e0e0;border-radius:8px;margin-top:10px}.news-management{max-width:1400px}.tabs{display:flex;gap:10px;margin-bottom:25px;border-bottom:2px solid #e0e0e0}.tab{padding:12px 25px;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;font-weight:600;color:var(--text-gray);transition:all .3s ease}.tab:hover{color:var(--text-dark)}.tab.active{color:var(--primary-orange);border-bottom-color:var(--primary-orange)}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:15px}.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.news-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px #0000000d}.news-card img{width:100%;height:200px;object-fit:cover}.news-card-content{padding:20px}.news-card-content h3{font-size:1.1rem;font-weight:600;margin-bottom:10px;color:var(--text-dark)}.news-category{color:var(--primary-orange);font-size:.85rem;margin-bottom:15px}.news-actions{display:flex;gap:8px}.categories-list{display:flex;flex-direction:column;gap:15px}.category-card{background:#fff;border-radius:12px;padding:20px;display:flex;align-items:center;gap:20px;box-shadow:0 2px 10px #0000000d}.category-icon{width:50px;height:50px;background:#f5f7fa;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary-orange)}.category-info{flex:1}.category-info h3{font-size:1.2rem;font-weight:600;margin-bottom:5px;color:var(--text-dark)}.category-info p{color:var(--text-gray);margin-bottom:5px}.category-slug{color:var(--text-gray);font-size:.85rem;font-family:monospace}.category-actions{display:flex;gap:8px}.contact-management{max-width:1400px}.contacts-list{display:flex;flex-direction:column;gap:15px}.contact-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d;border-left:4px solid transparent}.contact-card.new{border-left-color:var(--primary-orange);background:#fff9e6}.contact-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:15px;gap:20px}.contact-info{flex:1}.contact-name{display:flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:600;color:var(--text-dark);margin-bottom:10px}.contact-details{display:flex;flex-wrap:wrap;gap:20px;color:var(--text-gray);font-size:.9rem}.contact-details span{display:flex;align-items:center;gap:5px}.contact-status{display:flex;align-items:center}.status-contacted{background:#d4edda;color:#155724;padding:8px 15px;border-radius:20px;font-size:.9rem;display:flex;align-items:center;gap:5px}.contact-message{padding-top:15px;border-top:1px solid #e0e0e0}.contact-message strong{display:block;margin-bottom:8px;color:var(--text-dark)}.contact-message p{color:var(--text-gray);line-height:1.6}@media(max-width:768px){.contact-header{flex-direction:column}.contact-details{flex-direction:column;gap:10px}}.voucher-management{max-width:1400px}.vouchers-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:20px}.voucher-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d;border-left:4px solid var(--primary-orange)}.voucher-card.expired{opacity:.6;border-left-color:#ccc}.voucher-header{display:flex;align-items:center;gap:15px;margin-bottom:20px;padding-bottom:20px;border-bottom:2px solid #f5f7fa}.voucher-icon{width:50px;height:50px;background:linear-gradient(135deg,var(--primary-orange),#f093fb);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}.voucher-code h3{font-size:1.5rem;font-weight:700;color:var(--text-dark);margin-bottom:5px;font-family:monospace}.voucher-type{color:var(--primary-orange);font-weight:600;font-size:.9rem}.voucher-details{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.detail-item{display:flex;justify-content:space-between;align-items:center;color:var(--text-gray);font-size:.9rem}.detail-item strong{color:var(--text-dark);font-weight:600}.voucher-actions{display:flex;gap:8px}.points-management{max-width:1600px}.header-actions{display:flex;gap:10px}.stats-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:25px}.stat-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d;display:flex;align-items:center;gap:20px;transition:transform .3s ease,box-shadow .3s ease}.stat-card:hover{transform:translateY(-5px);box-shadow:0 5px 20px #0000001a}.stat-icon{width:60px;height:60px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;flex-shrink:0}.stat-icon.total{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.stat-icon.active{background:linear-gradient(135deg,#43e97b,#38f9d7);color:#fff}.stat-icon.expired{background:linear-gradient(135deg,#fa709a,#fee140);color:#fff}.stat-icon.users{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff}.stat-content h3{font-size:2rem;font-weight:700;color:var(--text-dark);margin-bottom:5px}.stat-content p{color:var(--text-gray);font-size:.9rem;margin:0}.filters-section{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 2px 10px #0000000d;display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap}.filter-group{display:flex;align-items:center;gap:8px;color:var(--text-gray)}.filter-select{padding:8px 12px;border:2px solid #e0e0e0;border-radius:8px;font-size:.9rem;cursor:pointer;transition:border-color .3s ease}.filter-select:focus{outline:none;border-color:var(--primary-orange)}.points-amount{display:flex;align-items:center;gap:5px;color:var(--primary-orange);font-weight:600;font-size:1.1rem}.user-info-cell{display:flex;flex-direction:column;gap:3px}.user-name{font-weight:600;color:var(--text-dark)}.user-email{color:var(--text-gray);font-size:.85rem}.user-total-points{color:#28a745;font-weight:600;font-size:1rem}.reason-text{color:var(--text-dark);max-width:300px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.expired-date{color:var(--text-gray);text-decoration:line-through}.expired-row{opacity:.6;background:#f5f5f5}.status-expired{background:#f8d7da;color:#721c24;padding:5px 12px;border-radius:20px;font-size:.85rem;font-weight:600}.status-active{background:#d4edda;color:#155724;padding:5px 12px;border-radius:20px;font-size:.85rem;font-weight:600}.empty-table{text-align:center;padding:40px;color:var(--text-gray)}.form-group small{display:block;margin-top:5px;color:var(--text-gray);font-size:.85rem}.users-selection{max-height:300px;overflow-y:auto;border:2px solid #e0e0e0;border-radius:8px;padding:10px;display:flex;flex-direction:column;gap:10px}.user-checkbox-label{display:flex;align-items:center;gap:12px;padding:12px;background:#f5f7fa;border-radius:8px;cursor:pointer;transition:background .3s ease}.user-checkbox-label:hover{background:#e9ecef}.user-checkbox-label input[type=checkbox]{display:none}.checkbox-custom{width:20px;height:20px;border:2px solid #e0e0e0;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .3s ease;flex-shrink:0}.user-checkbox-label input[type=checkbox]:checked+.checkbox-custom{background:var(--primary-orange);border-color:var(--primary-orange)}.user-checkbox-label input[type=checkbox]:checked+.checkbox-custom:after{content:"✓";color:#fff;font-weight:700}.user-info{display:flex;flex-direction:column;gap:3px;flex:1}.user-info .user-name{font-weight:600;color:var(--text-dark)}.user-info .user-email{color:var(--text-gray);font-size:.85rem}.user-info .user-id{color:var(--primary-orange);font-size:.85rem;font-family:monospace}@media(max-width:768px){.stats-cards{grid-template-columns:1fr}.filters-section{flex-direction:column;align-items:stretch}.header-actions{flex-direction:column;width:100%}.header-actions .btn{width:100%}}.notification-management{max-width:1400px}.notifications-list{display:flex;flex-direction:column;gap:15px}.notification-card{background:#fff;border-radius:12px;padding:25px;display:flex;gap:20px;box-shadow:0 2px 10px #0000000d;border-left:4px solid var(--primary-orange)}.notification-icon{width:50px;height:50px;background:#f5f7fa;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary-orange);flex-shrink:0}.notification-content{flex:1}.notification-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.notification-header h3{font-size:1.2rem;font-weight:600;color:var(--text-dark)}.notification-type{padding:4px 12px;border-radius:12px;font-size:.85rem;font-weight:600}.type-order{background:#d1ecf1;color:#0c5460}.type-course{background:#d4edda;color:#155724}.type-system{background:#fff3cd;color:#856404}.notification-message{color:var(--text-gray);margin-bottom:10px;line-height:1.6}.notification-meta{display:flex;gap:20px;font-size:.85rem;color:var(--text-gray)}.notification-actions{display:flex;gap:8px;flex-shrink:0}.permission-management{max-width:1400px}.user-info{display:flex;align-items:center;gap:10px}.role-badge{background:var(--primary-orange);color:#fff;padding:5px 12px;border-radius:12px;font-size:.85rem;font-weight:600}.permissions-preview{display:flex;flex-wrap:wrap;gap:5px}.permission-tag{background:#f5f7fa;padding:4px 10px;border-radius:12px;font-size:.85rem;color:var(--text-dark)}.permission-tag.all{background:var(--primary-orange);color:#fff}.permissions-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:15px;margin:20px 0;max-height:400px;overflow-y:auto;padding:15px;background:#f5f7fa;border-radius:8px}.permission-item{display:flex;align-items:center;gap:12px;cursor:pointer;padding:10px;background:#fff;border-radius:8px;transition:background .3s ease}.permission-item:hover{background:#f0f0f0}.permission-item input[type=checkbox]{display:none}.permission-checkbox{width:24px;height:24px;border:2px solid #e0e0e0;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .3s ease;flex-shrink:0}.permission-item input[type=checkbox]:checked+.permission-checkbox{background:var(--primary-orange);border-color:var(--primary-orange);color:#fff}.permission-label{font-weight:500;color:var(--text-dark)}.settings-page{max-width:1000px}.settings-sections{display:flex;flex-direction:column;gap:30px}.settings-section{background:#fff;border-radius:12px;padding:30px;box-shadow:0 2px 10px #0000000d}.settings-section h2{font-size:1.5rem;font-weight:600;color:var(--text-dark);margin-bottom:20px;display:flex;align-items:center;gap:10px;padding-bottom:15px;border-bottom:2px solid #f5f7fa}.settings-form{display:flex;flex-direction:column;gap:20px}.settings-form .form-group{display:flex;flex-direction:column;gap:8px}.settings-form label{font-weight:600;color:var(--text-dark)}.settings-form input,.settings-form textarea{padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;font-family:inherit;transition:border-color .3s ease}.settings-form input:focus,.settings-form textarea:focus{outline:none;border-color:var(--primary-orange)}.settings-form small{color:var(--text-gray);font-size:.85rem}.lesson-management{max-width:1400px}.btn-back{display:flex;align-items:center;gap:8px;background:none;border:none;color:var(--primary-orange);font-weight:600;cursor:pointer;padding:8px 0;margin-bottom:10px;transition:color .3s ease}.btn-back:hover{color:var(--primary-orange-dark)}.page-header .course-description{color:var(--text-gray);font-size:.9rem;margin-top:5px}.lessons-list{display:flex;flex-direction:column;gap:20px}.empty-state{background:#fff;border-radius:12px;padding:60px 20px;text-align:center;color:var(--text-gray)}.empty-state svg{margin-bottom:20px;color:var(--text-gray)}.lesson-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px #0000000d;border-left:4px solid var(--primary-orange)}.lesson-header{display:flex;gap:20px;margin-bottom:20px}.lesson-order{display:flex;flex-direction:column;align-items:center;gap:10px;flex-shrink:0}.order-number{width:40px;height:40px;background:var(--primary-orange);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}.order-controls{display:flex;flex-direction:column;gap:5px}.btn-order{background:#f5f7fa;border:1px solid #e0e0e0;border-radius:4px;width:30px;height:25px;cursor:pointer;font-size:.8rem;transition:all .3s ease}.btn-order:hover:not(:disabled){background:var(--primary-orange);color:#fff;border-color:var(--primary-orange)}.btn-order:disabled{opacity:.3;cursor:not-allowed}.lesson-info{flex:1}.lesson-title-row{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px;gap:15px}.lesson-title-row h3{font-size:1.3rem;font-weight:600;color:var(--text-dark);flex:1}.lesson-badges{display:flex;gap:8px;flex-wrap:wrap}.badge{padding:5px 12px;border-radius:12px;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:5px}.badge-free{background:#d4edda;color:#155724}.badge-locked{background:#f8d7da;color:#721c24}.badge-duration{background:#d1ecf1;color:#0c5460}.lesson-description{color:var(--text-gray);margin-bottom:15px;line-height:1.6}.lesson-video{display:flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--text-gray);font-size:.9rem}.lesson-video a{color:var(--primary-orange);text-decoration:none;word-break:break-all}.lesson-video a:hover{text-decoration:underline}.lesson-documents{display:flex;align-items:center;gap:8px;color:var(--text-gray);font-size:.9rem;margin-top:10px}.documents-list{display:flex;gap:8px;flex-wrap:wrap;margin-left:5px}.document-tag{background:#f5f7fa;padding:4px 10px;border-radius:12px;font-size:.85rem;color:var(--text-dark)}.lesson-actions{display:flex;gap:8px;padding-top:15px;border-top:1px solid #e0e0e0}.btn-success{background:#28a745;color:#fff}.btn-success:hover{background:#218838}.documents-section{margin-top:10px}.add-document{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-bottom:15px}.documents-list-edit{display:flex;flex-direction:column;gap:10px;max-height:200px;overflow-y:auto;padding:10px;background:#f5f7fa;border-radius:8px}.document-item{display:flex;justify-content:space-between;align-items:center;padding:10px;background:#fff;border-radius:8px}.document-info{display:flex;align-items:center;gap:10px;flex:1}.document-info span{font-weight:600;color:var(--text-dark)}.document-info a{color:var(--primary-orange);font-size:.85rem;text-decoration:none;word-break:break-all}.document-info a:hover{text-decoration:underline}@media(max-width:768px){.lesson-header,.lesson-title-row{flex-direction:column}.add-document{grid-template-columns:1fr}}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1}