@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{width:90%;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)}.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}}:root{--primary-color: #e89a3c;--primary-light: #f5b875;--primary-dark: #d68b2d;--primary-gradient: linear-gradient(135deg, #e89a3c 0%, #d68b2d 100%);--secondary-color: #d68b2d;--secondary-light: #f5b875;--secondary-dark: #c47a1f;--accent-pink: #f5b875;--accent-purple: #e89a3c;--accent-lavender: #f5b875;--text-primary: 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.3s}.card:hover,.blog-card:hover,.submission-card:hover,.course-card:hover{box-shadow:var(--shadow-md)}input:focus,textarea:focus,select:focus,.search-box:focus,.search-input:focus{border-color:var(--primary-color)!important;box-shadow:0 0 0 3px #e89a3c1a!important}.hero,.blog-hero,.course-hero{background:var(--primary-gradient)!important}.active,.category-list button.active{background:var(--primary-gradient)!important;color:#fff!important}.progress-bar{background:var(--primary-gradient)}.spinner,.loader{border-top-color:var(--primary-color)}.tag,.pill,.category-tag{background:var(--bg-light);color:var(--primary-dark);transition:all .2s}.tag:hover,.pill:hover,.category-tag:hover{background:var(--primary-gradient);color:#fff}h1,h2,h3{color:var(--text-primary)}.header h1,.page-title{background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.blog-category,.blog-meta .blog-category{background:var(--primary-gradient)!important}.breadcrumb a{color:var(--primary-color)!important}.article-excerpt{border-left-color:var(--primary-color)!important}.checkout-summary{border-color:var(--primary-light)}.price,.total-price{color:var(--primary-color)!important;font-weight:700}.admin-sidebar .active{background:var(--primary-gradient)!important}.stat-card{border-top:3px solid var(--primary-color)}.modal{border-top:4px solid var(--primary-color)}.alert-info{background:var(--bg-light);border-color:var(--primary-light);color:var(--primary-dark)}thead,.table-header{background:var(--primary-gradient)!important}tr:hover{background:var(--bg-lighter)!important}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-lighter)}::-webkit-scrollbar-thumb{background:var(--primary-gradient);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--primary-color)}::selection{background:var(--primary-light);color:#fff}::-moz-selection{background:var(--primary-light);color:#fff}@media(max-width:768px){.btn-primary,button.btn-primary{padding:10px 20px!important}}.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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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)}.user-btn{position:relative}.dropdown-arrow{position:absolute;bottom:-2px;right:-2px;font-size:.6rem;color:var(--primary-orange)}.user-menu-wrapper{position:relative}.user-dropdown{position:absolute;right:0;top:100%;margin-top:8px;background:#fff;border:1px solid #ddd;border-radius:8px;box-shadow:0 4px 12px #00000026;min-width:240px;z-index:1000;overflow:hidden}.user-dropdown-header{padding:16px;border-bottom:1px solid #eee;background:#f8f9fa}.user-name{font-weight:600;font-size:15px;color:var(--text-dark);margin-bottom:4px}.user-email{font-size:13px;color:#666}.user-dropdown-item{display:flex;align-items:center;gap:12px;padding:12px 16px;color:#333;text-decoration:none;border-bottom:1px solid #eee;transition:background-color .2s ease;font-size:14px;cursor:pointer;background:none;border-left:none;border-right:none;border-top:none;width:100%;text-align:left}.user-dropdown-item:last-of-type{border-bottom:none}.user-dropdown-item:hover{background-color:#f8f9fa;color:var(--primary-orange)}.user-dropdown-item .menu-icon{font-size:18px;color:#666;flex-shrink:0}.user-dropdown-item:hover .menu-icon{color:var(--primary-orange)}.logout-item{color:#c33}.logout-item:hover{background-color:#fff5f5;color:#a00}.user-dropdown-divider{height:1px;background:#eee;margin:4px 0}.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 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#e89a3c4d}.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}.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 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svg{color:var(--primary-orange)}.form-input{padding:12px 16px;border:1px solid #ddd;border-radius:8px;font-size:.95rem;font-family:var(--font-primary);transition:all .3s ease;width:100%}.form-input:focus{outline:none;border-color:var(--primary-orange);box-shadow:0 0 0 3px #e89a3c1a}.form-input:disabled{background:var(--light-gray);cursor:not-allowed}.form-group small{font-size:.85rem;color:var(--text-gray);margin-top:-4px}.password-group{position:relative}.password-input-wrapper{position:relative;display:flex;align-items:center}.password-input-wrapper .form-input{padding-right:45px}.password-toggle{position:absolute;right:12px;background:none;border:none;color:var(--text-gray);cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;transition:color .3s ease}.password-toggle:hover{color:var(--primary-orange)}.btn-primary{padding:12px 24px;background:var(--primary-orange);color:var(--white);border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;align-self:flex-start}.btn-primary:hover:not(:disabled){background:var(--primary-orange-dark);transform:translateY(-2px);box-shadow:0 4px 12px #e89a3c4d}.btn-primary:disabled{opacity:.6;cursor:not-allowed}@media(max-width:1024px){.user-profile-container{grid-template-columns:1fr}.user-profile-sidebar{position:static;margin-bottom:20px}.sidebar-menu{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0}}@media(max-width:768px){.user-profile-page{padding:20px 0}.user-profile-card{padding:20px}.user-info-banner{flex-direction:column;text-align:center}.avatar-actions{flex-direction:row;justify-content:center}.profile-tabs{flex-direction:column;gap:0}.tab{text-align:left;border-bottom:1px solid 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p{margin:0;padding:12px;background:#f8f9fa;border-left:3px solid #3498db;border-radius:4px;color:#5a6c7d;line-height:1.6}.file-list{display:flex;flex-direction:column;gap:8px}.file-link{display:inline-flex;align-items:center;padding:8px 12px;background:#ecf0f1;border-radius:6px;color:#2c3e50;text-decoration:none;font-size:14px;transition:all .2s;max-width:fit-content}.file-link:hover{background:#3498db;color:#fff}.grading-section{padding:16px;background:#e8f5e9;border-radius:8px;border:1px solid #c3e6cb}.score{display:flex;align-items:center;gap:12px;margin-bottom:12px}.score strong{color:#2c3e50}.score-value{font-size:24px;font-weight:700;color:#27ae60}.teacher-feedback{margin-top:12px}.teacher-feedback strong{display:block;margin-bottom:8px;color:#2c3e50;font-size:14px}.teacher-feedback p{margin:0;padding:12px;background:#fff;border-left:3px solid #27ae60;border-radius:4px;color:#5a6c7d;line-height:1.6}.form-group input[type=text],.form-group input[type=file],.form-group 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li{flex-direction:column;align-items:flex-start;gap:8px}.order-actions{flex-direction:column}.total-amount{font-size:20px}}.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 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#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 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#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 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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{padding:20px;max-width:1200px;margin:0 auto}.btn-primary{background:var(--primary-gradient);color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:16px;cursor:pointer;text-decoration:none;transition:all .3s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #e91e634d}.vouchers-table{background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a;overflow:hidden}.vouchers-table table{width:100%;border-collapse:collapse}.vouchers-table thead{background:var(--primary-gradient);color:#fff}.vouchers-table th{padding:16px;text-align:left;font-weight:600;font-size:14px}.vouchers-table tbody tr{border-bottom:1px solid #ecf0f1;transition:background .2s}.vouchers-table tbody tr:hover{background:linear-gradient(135deg,#fffbf5,#fff8f0)}.vouchers-table td{padding:16px;font-size:14px}.code{font-family:monospace;font-weight:600;color:var(--primary-color)}.btn-edit{background:#f39c12;color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:13px;text-decoration:none;transition:all .2s}.voucher-form-page{min-height:calc(100vh - 80px);background:#f5f7fa;padding:40px 20px}.voucher-form-container{max-width:800px;margin:0 auto}.form-header{display:flex;align-items:center;gap:15px;margin-bottom:30px}.back-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#fff;border:1px solid #e0e0e0;border-radius:6px;cursor:pointer;transition:all .3s;color:#666}.back-btn:hover{background:#f5f5f5;border-color:#ccc}.form-header h1{display:flex;align-items:center;gap:12px;font-size:24px;margin:0;color:#333}.message{padding:15px 20px;border-radius:8px;margin-bottom:20px}.error-message{background:#ffebee;color:#c62828;border:1px solid #ef9a9a}.success-message{background:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}.voucher-form{background:#fff;padding:30px;border-radius:12px;box-shadow:0 2px 8px #0000000d}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:#333}.required{color:#f44336}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 15px;border:2px solid #e0e0e0;border-radius:8px;font-size:14px;transition:all .3s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#4caf50}.form-group input:disabled,.form-group select:disabled,.form-group textarea:disabled{background-color:#f5f5f5;cursor:not-allowed}.form-group small{display:block;margin-top:6px;font-size:12px;color:#666}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:768px){.form-row{grid-template-columns:1fr}}.form-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:30px;padding-top:20px;border-top:2px solid #f0f0f0}.cancel-btn{padding:12px 24px;background:#fff;color:#666;border:2px solid #e0e0e0;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s}.cancel-btn:hover:not(:disabled){background:#f5f5f5;border-color:#ccc}.submit-btn{display:flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,#4caf50,#45a049);color:#fff;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s}.submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #4caf504d}.submit-btn:disabled,.cancel-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.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%}}.voucher-input-container{margin:20px 0}.voucher-label{display:flex;align-items:center;gap:8px;font-weight:500;margin-bottom:10px;color:#333}.voucher-input-wrapper{display:flex;gap:10px}.voucher-input{flex:1;padding:12px 15px;border:2px solid #e0e0e0;border-radius:8px;font-size:14px;transition:all 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#4caf504d}.voucher-apply-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.voucher-applied{display:flex;align-items:center;justify-content:space-between;padding:15px;background:linear-gradient(135deg,#4caf50,#45a049);border-radius:8px;color:#fff}.voucher-applied-info{display:flex;align-items:center;gap:12px}.check-icon{font-size:24px;background:#fff3;padding:8px;border-radius:50%}.voucher-code{font-weight:600;font-size:16px}.voucher-discount{font-size:13px;opacity:.9}.voucher-remove-btn{background:#fff3;border:none;color:#fff;width:32px;height:32px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s}.voucher-remove-btn:hover{background:#ffffff4d;transform:scale(1.1)}.voucher-message{display:flex;align-items:center;gap:8px;padding:10px 15px;margin-top:10px;border-radius:6px;font-size:14px}.voucher-error{background-color:#ffebee;color:#c62828;border:1px solid #ef9a9a}.voucher-success{background-color:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}.voucher-details{margin-top:15px;padding:15px;background:#f9f9f9;border-radius:8px;border:1px solid #e0e0e0}.detail-row{display:flex;justify-content:space-between;padding:8px 0;font-size:14px}.detail-row.discount{color:#4caf50;font-weight:500}.detail-row.total{border-top:2px dashed #e0e0e0;margin-top:8px;padding-top:12px;font-size:16px;font-weight:600;color:#333}.points-input-container{margin:20px 0;padding:20px;background:#fff8e1;border-radius:12px;border:2px solid #ffd54f}.points-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.points-label{display:flex;align-items:center;gap:8px;font-weight:600;color:#f57c00;font-size:16px}.points-label svg{font-size:20px;color:#ffa726}.info-btn{background:none;border:none;color:#ff9800;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .3s}.info-btn:hover{background:#ff98001a}.points-info{background:#fffaf0;padding:12px;border-radius:8px;margin-bottom:12px;border-left:3px solid #ff9800}.points-info p{margin:6px 0;font-size:13px;color:#666}.points-balance{font-size:14px;color:#666;margin-bottom:12px;padding:12px;background:#fff;border-radius:8px}.balance-amount{font-weight:600;color:#f57c00;font-size:16px}.balance-vnd{margin-left:8px;color:#999;font-size:13px}.points-input-wrapper{display:flex;gap:8px}.points-input{flex:1;padding:12px 15px;border:2px solid #ffd54f;border-radius:8px;font-size:14px;transition:all .3s;background:#fff}.points-input:focus{outline:none;border-color:#ffa726}.points-input:disabled{background-color:#f5f5f5;cursor:not-allowed}.use-all-btn{padding:12px 16px;background:#fff;color:#ff9800;border:2px solid #ffd54f;border-radius:8px;font-weight:500;cursor:pointer;transition:all 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#ef9a9a}.points-input::-webkit-outer-spin-button,.points-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.points-input[type=number]{-moz-appearance:textfield}.checkout-page{min-height:calc(100vh - 80px);background:linear-gradient(135deg,#667eea,#764ba2);padding:40px 20px}.checkout-container{max-width:1200px;margin:0 auto}.checkout-header{display:flex;align-items:center;gap:15px;color:#fff;margin-bottom:30px}.checkout-header svg{font-size:36px}.checkout-header h1{font-size:32px;font-weight:600;margin:0}.checkout-content{display:grid;grid-template-columns:1fr 400px;gap:30px;align-items:start}@media(max-width:968px){.checkout-content{grid-template-columns:1fr}}.checkout-left,.checkout-right{background:#fff;border-radius:12px;padding:30px;box-shadow:0 10px 30px #0000001a}.cart-section h2,.user-info-section h2,.order-summary 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