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h2{font-size:20px}.register-card{max-width:100%}.register-actions{flex-direction:column}.math-symbol{display:none}}.tutor-note{align-items:flex-start;background:#4f46e514;border:1px solid #4f46e51f;border-radius:12px;display:flex;gap:14px;margin-top:24px;padding:16px 18px}.tutor-note-icon{flex-shrink:0;font-size:28px}.tutor-note-content h4{color:#fff;font-size:14px;font-weight:600;margin:0 0 4px}.tutor-note-content p{color:#fff9;font-size:13px;line-height:1.5;margin:0}.tutor-note-content p a{color:#818cf8;font-weight:500;text-decoration:underline}.tutor-note-content p a:hover{color:#a5b4fc}.register-badge{background:#4f46e51f;border:1px solid #4f46e526;border-radius:20px;display:inline-block;margin-top:8px;padding:4px 14px}.register-badge span{color:#818cf8;font-size:12px;font-weight:500}[data-theme=light] .tutor-note{background:#4f46e50a;border-color:#4f46e514}[data-theme=light] .tutor-note-content h4{color:#0f172a}[data-theme=light] .tutor-note-content 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.price{color:#fff!important;font-size:24px;font-weight:800}.summary-plan-price .period{color:#94a3b8!important;font-size:14px}.summary-divider{background:#ffffff0f!important;height:1px;margin:16px 0}.summary-feature{align-items:center;color:#94a3b8!important;display:flex;font-size:14px;gap:8px;padding:4px 0}.summary-feature span{color:#34d399!important;font-weight:700}.summary-total{align-items:center;color:#fff!important;display:flex;font-size:18px;font-weight:700;justify-content:space-between}.total-price{color:#818cf8!important;font-size:24px;font-weight:800}.total-price .period{color:#94a3b8!important;font-size:14px;font-weight:400}.summary-refund{align-items:center;color:#64748b!important;display:flex;font-size:12px;margin-top:12px;padding-top:12px}.summary-refund,.summary-security{border-top:1px solid #ffffff0f!important;gap:8px}.summary-security{grid-gap:8px;display:grid;grid-template-columns:1fr 1fr;margin-top:16px;padding-top:16px}.security-badge{align-items:center;color:#64748b!important;display:flex;font-size:12px;gap:6px}.checkout-empty,.checkout-error,.checkout-loading{align-items:center;color:#94a3b8!important;display:flex;font-size:18px;justify-content:center;min-height:60vh}.checkout-error{color:#fca5a5!important}.checkout-modal-overlay{align-items:center;animation:modalFadeIn .3s ease;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);background:#000000b3;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:9999}.checkout-modal{animation:modalSlideUp .3s ease;background:#141b2d;border:1px solid #ffffff0f;border-radius:20px;box-shadow:0 30px 80px #0009;display:flex;flex-direction:column;max-height:90vh;max-width:500px;overflow:hidden;padding:40px 36px;position:relative;width:100%}.checkout-modal-close{background:none;border:none;color:#fff6;cursor:pointer;font-size:28px;line-height:1;position:absolute;right:20px;top:16px;transition:color .3s ease;z-index:10}.checkout-modal-close:hover{color:#fffc}.alert-modal{max-width:420px;padding:40px 36px 32px;text-align:center}.alert-icon{display:block;font-size:48px;margin-bottom:8px}.alert-title{color:#fbbf24;font-size:22px;font-weight:700;margin:0 0 8px}.alert-message{color:#ffffffb3;font-size:15px;line-height:1.6;margin:0 0 20px}.alert-btn{background:linear-gradient(135deg,#f59e0b,#fbbf24)!important;border:none;border-radius:10px;color:#0f172a;cursor:pointer;font-size:15px;font-weight:600;padding:12px;transition:all .3s ease;width:100%}.alert-btn:hover{box-shadow:0 8px 25px #f59e0b4d;transform:translateY(-2px)}.privacy-modal,.terms-modal{max-width:600px;padding:32px 36px 28px}.modal-title{color:#fff;font-size:22px;font-weight:700;margin:0 0 16px;padding-right:30px}.modal-scroll-content{flex:1 1;max-height:60vh;overflow-y:auto;padding-right:4px}.modal-scroll-content::-webkit-scrollbar{width:6px}.modal-scroll-content::-webkit-scrollbar-track{background:#ffffff08;border-radius:3px}.modal-scroll-content::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.modal-scroll-content::-webkit-scrollbar-thumb:hover{background:#fff3}.last-updated{border-bottom:1px solid #ffffff0f!important;color:#64748b!important;font-size:13px;margin-bottom:16px;padding-bottom:12px}.section{margin-bottom:20px}.section h3{color:#e2e8f0;font-size:16px;font-weight:700;margin:0 0 8px}.section p{color:#94a3b8!important;font-size:14px;line-height:1.7;margin-bottom:6px}.modal-close-btn{border:none;border-radius:10px;color:#fff;cursor:pointer;font-size:15px;font-weight:600;margin-top:16px;padding:12px;transition:all .3s ease;width:100%}.modal-close-btn:hover{box-shadow:0 8px 25px #4f46e54d;transform:translateY(-2px)}.success-modal{border-color:#34d39926;max-width:440px;padding:40px 36px 32px;text-align:center}.success-icon{animation:successBounce .6s cubic-bezier(.34,1.56,.64,1);display:block;font-size:56px;margin-bottom:8px}@keyframes successBounce{0%{transform:scale(0)}50%{transform:scale(1.2)}to{transform:scale(1)}}.success-title{color:#34d399;font-size:24px;font-weight:700;margin:0 0 8px}.success-message{color:#ffffffb3;font-size:15px;line-height:1.6;margin:0 0 16px}.success-message strong{color:#fff}.success-details{grid-gap:8px 16px;background:#ffffff08;border-radius:12px;display:grid;gap:8px 16px;grid-template-columns:1fr 1fr;margin:12px 0 16px;padding:16px;text-align:left}.success-detail-item{display:flex;flex-direction:column}.success-detail-item span{color:#fff6;font-size:10px;letter-spacing:.5px;text-transform:uppercase}.success-detail-item strong{color:#fff;font-size:14px;margin-top:2px;word-break:break-all}.success-btn{border:none;border-radius:10px;color:#fff;cursor:pointer;font-size:16px;font-weight:600;padding:14px;transition:all .3s ease;width:100%}.success-btn:hover{box-shadow:0 8px 25px #4f46e54d;transform:translateY(-2px)}.success-note{color:#ffffff4d!important;font-size:13px;margin:12px 0 0}@media (max-width:1024px){.checkout-grid{grid-template-columns:1fr}.checkout-summary{position:static}}@media (max-width:768px){.checkout-page{padding:20px 12px}.checkout-header h1{font-size:26px}.checkout-section{padding:20px 16px}.form-row{grid-template-columns:1fr}.payment-methods{grid-template-columns:1fr 1fr}.checkout-steps{gap:8px;overflow-x:auto}.step-label{font-size:12px}.step-line{width:20px}.checkbox-label{font-size:13px}.checkout-modal{max-width:95%;padding:28px 20px}.privacy-modal,.terms-modal{padding:24px 16px 20px}.success-details{gap:6px;grid-template-columns:1fr}}@media (max-width:480px){.selected-plan-card{flex-direction:column;gap:12px;text-align:center}.plan-price-mini{text-align:center}.payment-methods{grid-template-columns:1fr}.checkbox-label{font-size:12px;gap:10px}.checkbox-label input[type=checkbox]{height:16px;min-height:16px;min-width:16px;width:16px}.alert-modal{padding:28px 20px 24px}.alert-icon{font-size:36px}.alert-title{font-size:18px}.success-icon{font-size:44px}.success-title{font-size:20px}}[data-theme=light] .checkout-page{background:#f8fafc!important}[data-theme=light] .checkout-header h1{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#0f172a,#4f46e5);-webkit-background-clip:text;background-clip:text}[data-theme=light] .checkout-header p{color:#0009!important}[data-theme=light] .checkout-section{background:#fff!important;border:1px solid #0000000f!important}[data-theme=light] .checkout-section h3{color:#0f172a!important}[data-theme=light] .selected-plan-card{background:#00000005!important;border:1px solid #0000000f!important}[data-theme=light] .plan-info h4{color:#0f172a!important}[data-theme=light] .plan-description{color:#0009!important}[data-theme=light] .plan-price-mini .price{color:#0f172a!important}[data-theme=light] .form-group label,[data-theme=light] .plan-price-mini .period{color:#0009!important}[data-theme=light] .form-group input,[data-theme=light] .form-group select{background:#f8fafc!important;border:1px solid #0000000f!important;color:#0f172a!important}[data-theme=light] .form-group input::placeholder{color:#0000004d}[data-theme=light] .payment-method{background:#f8fafc!important;border:2px solid #0000000f!important;color:#0009!important}[data-theme=light] .payment-method.selected{background:#4f46e50d!important;border-color:#4f46e5!important;color:#0f172a!important}[data-theme=light] .payment-info{background:#00000005!important;color:#0009!important}[data-theme=light] .summary-card{background:#fff!important;border:1px solid #0000000f!important}[data-theme=light] .summary-card h3,[data-theme=light] .summary-plan-name .plan-name{color:#0f172a!important}[data-theme=light] .summary-plan-name .plan-tier{background:#0000000a!important;color:#0009!important}[data-theme=light] .summary-plan-price .price{color:#0f172a!important}[data-theme=light] .summary-feature,[data-theme=light] .summary-plan-price .period{color:#0009!important}[data-theme=light] .summary-total{color:#0f172a!important}[data-theme=light] .total-price{color:#4f46e5!important}[data-theme=light] .security-badge,[data-theme=light] .summary-refund{color:#0006!important}[data-theme=light] .step-number{background:#f1f5f9!important;color:#94a3b8!important}[data-theme=light] .step-item.active .step-number{background:linear-gradient(135deg,#4f46e5,#7c3aed)!important;color:#fff!important}[data-theme=light] .step-label{color:#94a3b8!important}[data-theme=light] .step-item.active .step-label{color:#0f172a!important}[data-theme=light] .checkout-back{color:#4f46e5!important}[data-theme=light] .checkout-back:hover{color:#4338ca!important}[data-theme=light] .checkbox-label{color:#000000b3!important}[data-theme=light] .checkbox-label input[type=checkbox]{background:#fff;border-color:#0f172a}[data-theme=light] .checkbox-label input[type=checkbox]:checked{background:#4f46e5;border-color:#4f46e5}[data-theme=light] .checkbox-label input[type=checkbox]:checked:after{color:#fff}[data-theme=light] .checkbox-label:hover input[type=checkbox]{border-color:#4f46e5}[data-theme=light] .checkbox-label span{color:#000000b3!important}[data-theme=light] .terms-link{color:#4f46e5!important}[data-theme=light] .terms-link:hover{color:#4338ca!important}[data-theme=light] .checkout-modal{background:#fff;border:1px solid #0000000f}[data-theme=light] .checkout-modal-close{color:#0000004d}[data-theme=light] .checkout-modal-close:hover{color:#0009}[data-theme=light] .alert-title{color:#d97706}[data-theme=light] .alert-message{color:#000000b3}[data-theme=light] .modal-title,[data-theme=light] .section h3{color:#0f172a}[data-theme=light] .section p{color:#0009!important}[data-theme=light] .last-updated{border-bottom:1px solid #0000000f!important;color:#0006!important}[data-theme=light] .success-title{color:#059669}[data-theme=light] .success-message{color:#0009}[data-theme=light] .success-message strong{color:#0f172a}[data-theme=light] .success-details{background:#00000005}[data-theme=light] .success-detail-item strong{color:#0f172a}[data-theme=light] .success-detail-item span{color:#0006}[data-theme=light] .success-note{color:#0000004d!important}[data-theme=light] .mini-feature{color:#0009!important}[data-theme=light] .card-details,[data-theme=light] .mini-feature{background:#00000005!important;border:1px solid #0000000f!important}[data-theme=light] .checkout-error-message{background:#ef44440d!important;color:#dc2626!important}[data-theme=light] .checkout-empty,[data-theme=light] .checkout-loading{color:#0009!important}[data-theme=light] .checkout-error{color:#dc2626!important}.checkout-page::-webkit-scrollbar{width:8px}.checkout-page::-webkit-scrollbar-track{background:#141b2d}.checkout-page::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:4px}.checkout-page::-webkit-scrollbar-thumb:hover{background:#ffffff40}.payment-success-page{align-items:center;background:var(--bg-primary);display:flex;justify-content:center;min-height:100vh;padding:40px 20px;transition:background .3s ease}.payment-success-container{animation:fadeInUp .6s ease-out;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:24px;box-shadow:0 20px 60px var(--shadow-color);max-width:600px;padding:48px 40px;width:100%}.success-icon{margin-bottom:24px}.success-circle,.success-icon{display:flex;justify-content:center}.success-circle{align-items:center;animation:popIn .5s ease-out .2s both;background:var(--accent-success);border-radius:50%;box-shadow:0 8px 30px #22c55e4d;height:80px;width:80px}@keyframes popIn{0%{transform:scale(0)}to{transform:scale(1)}}.success-check{color:#fff;font-size:40px;font-weight:700}.success-title{color:var(--text-primary);font-size:28px;font-weight:800;margin-bottom:6px;text-align:center}.success-subtitle{color:var(--text-secondary);font-size:16px;margin-bottom:28px;text-align:center}.success-transaction{color:var(--text-muted);font-size:12px;margin-bottom:20px;text-align:center}.transaction-label{color:var(--text-secondary);font-weight:600}.transaction-id{color:var(--text-primary);font-family:monospace;margin-left:4px}.success-user-info{background:var(--bg-card);border-radius:12px;margin-bottom:24px;padding:16px 20px}.info-row{border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;padding:6px 0}.info-row:last-child{border-bottom:none}.info-label{color:var(--text-secondary);font-size:14px}.info-value{color:var(--text-primary);font-size:14px;font-weight:600}.plan-badge{background:var(--gradient-primary);border-radius:12px;color:#fff;font-size:12px;padding:2px 12px}.success-features{margin-bottom:24px}.success-features h3{color:var(--text-primary);font-size:16px;font-weight:700;margin-bottom:10px}.success-features ul{list-style:none;margin:0;padding:0}.success-features li{align-items:center;color:var(--text-secondary);display:flex;font-size:14px;gap:8px;padding:4px 0}.feature-check{color:var(--accent-success);font-size:16px;font-weight:700}.success-next-steps{background:#4f46e514;border-radius:12px;margin-bottom:24px;padding:16px 20px}.success-next-steps h3{color:var(--text-primary);font-size:16px;font-weight:700;margin-bottom:10px}.success-next-steps ol{margin:0;padding-left:20px}.success-next-steps li{color:var(--text-secondary);font-size:14px;line-height:1.7;padding:2px 0}.success-next-steps li strong{color:var(--text-primary)}.success-notes{grid-gap:12px;display:grid;gap:12px;grid-template-columns:1fr 1fr;margin-bottom:28px}.note-item{align-items:flex-start;background:var(--bg-card);border-radius:10px;display:flex;gap:10px;padding:12px 14px}.note-icon{flex-shrink:0;font-size:18px;margin-top:2px}.note-item strong{color:var(--text-primary);display:block;font-size:13px}.note-item p{color:var(--text-secondary);font-size:12px;margin:2px 0 0}.success-actions{display:flex;gap:12px;margin-bottom:20px}.btn-dashboard,.btn-session{border:none;border-radius:10px;cursor:pointer;flex:1 1;font-size:16px;font-weight:700;padding:14px 24px;transition:all .3s ease}.btn-dashboard{background:var(--gradient-primary);color:#fff}.btn-dashboard:hover{box-shadow:0 8px 25px #4f46e540;transform:translateY(-2px)}.btn-session{background:var(--bg-card);border:1px solid 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div{display:flex;flex-wrap:wrap;gap:16px}.profile-container::-webkit-scrollbar{width:8px}.profile-container::-webkit-scrollbar-track{background:#141b2d}.profile-container::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:4px}.profile-container::-webkit-scrollbar-thumb:hover{background:#ffffff40}.profile-modal::-webkit-scrollbar{width:6px}.profile-modal::-webkit-scrollbar-track{background:#ffffff08;border-radius:3px}.profile-modal::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.profile-modal::-webkit-scrollbar-thumb:hover{background:#fff3}@media (max-width:1024px){.profile-grid{grid-template-columns:1fr}.profile-stats{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.profile-container{padding:20px 16px}.profile-header{flex-direction:column;padding:20px;text-align:center}.profile-header-info h1{font-size:24px}.profile-edit-btn{width:100%}.profile-stats{gap:10px;grid-template-columns:1fr 1fr}.profile-stat-card{padding:14px 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h1{font-size:20px}.profile-stats{gap:8px;grid-template-columns:1fr 1fr}.profile-stat-card{padding:10px 12px}.stat-number{font-size:20px}.profile-card{padding:12px 14px}.profile-card h3{font-size:16px}.video-upload-zone{padding:24px 16px}.video-upload-zone .upload-icon{font-size:36px}.video-upload-zone p{font-size:14px}.video-info-badge{font-size:12px;gap:10px}}[data-theme=light] .profile-container{background:#f8fafc!important}[data-theme=light] .profile-header{background:#fff!important;border:1px solid #0000000f!important}[data-theme=light] .profile-header-info h1{color:#0f172a!important}[data-theme=light] .profile-header-subtitle{color:#0009!important}[data-theme=light] .profile-edit-btn{background:#fff!important;border:1px solid #0000000f!important;color:#0f172a!important}[data-theme=light] .profile-edit-btn:hover{border-color:#0f172a!important}[data-theme=light] .profile-stat-card{background:#fff!important;border:1px solid #0000000f!important}[data-theme=light] .stat-number{color:#0f172a!important}[data-theme=light] .stat-label{color:#0009!important}[data-theme=light] .profile-card{background:#fff!important;border:1px solid #0000000f!important}[data-theme=light] .profile-card h3{border-bottom:1px solid #0000000f!important;color:#0f172a!important}[data-theme=light] .info-label{color:#0009!important}[data-theme=light] .info-value{color:#0f172a!important}[data-theme=light] .profile-input,[data-theme=light] .profile-select{background:#fff!important;border:1px solid #0000000f!important;color:#0f172a!important}[data-theme=light] .profile-setting-item{border:1px solid #0000000f!important}[data-theme=light] .setting-info h4{color:#0f172a!important}[data-theme=light] .setting-info p{color:#0009!important}[data-theme=light] .setting-action-btn{background:#fff!important;border:1px solid #0000000f!important;color:#0f172a!important}[data-theme=light] .profile-course-card{border:1px solid #0000000f!important}[data-theme=light] .course-info h4{color:#0f172a!important}[data-theme=light] .course-tier{color:#00000080!important}[data-theme=light] .progress-text{color:#0f172a!important}[data-theme=light] .profile-empty-state{color:#00000080!important}[data-theme=light] .profile-modal{background:#fff!important;border:1px solid #0000000f!important}[data-theme=light] .profile-modal-header{border-bottom:1px solid #0000000f!important}[data-theme=light] .profile-modal-header h3{color:#0f172a!important}[data-theme=light] .modal-close{color:#0006!important}[data-theme=light] .modal-close:hover{color:#0f172a!important}[data-theme=light] .profile-modal-body .form-group label{color:#0009!important}[data-theme=light] .modal-cancel,[data-theme=light] .profile-modal-body .form-group input{background:#fff!important;border:1px solid #0000000f!important;color:#0f172a!important}[data-theme=light] .profile-error{color:#dc2626!important}[data-theme=light] .profile-success{color:#16a34a!important}[data-theme=light] 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ease}.difficulty-option:hover{background:#ffffff0f;background:var(--bg-hover,#ffffff0f);color:#ffffffb3;color:var(--text-secondary,#ffffffb3)}.difficulty-option.active{background:#4f46e526;border-color:#4f46e5;border-color:var(--accent-primary,#4f46e5);color:#818cf8}.toggle-item{align-items:center;color:#ffffffb3;color:var(--text-secondary,#ffffffb3);cursor:pointer;display:flex;font-size:14px;justify-content:space-between;padding:8px 0;transition:color .3s ease}.toggle-item:hover{color:#fff;color:var(--text-primary,#fff)}.toggle-track{background:#ffffff1a;background:var(--border-color,#ffffff1a);border-radius:12px;cursor:pointer;flex-shrink:0;height:24px;transition:background .3s ease;width:44px}.toggle-thumb{background:#6b7280;background:var(--text-muted,#6b7280);border-radius:50%;height:20px;transform:translateX(2px);transition:all .3s ease;width:20px}.toggle-thumb.active{background:#4f46e5;background:var(--accent-primary,#4f46e5);transform:translateX(22px)}.security-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}.security-btn{background:#ffffff0a;background:var(--bg-input,#ffffff0a);border:1px solid #ffffff14;border:1px solid var(--border-color,#ffffff14);border-radius:8px;color:#ffffffb3;color:var(--text-secondary,#ffffffb3);cursor:pointer;font-size:13px;padding:8px 16px;transition:all .3s ease}.security-btn:hover{background:#ffffff0f;background:var(--bg-hover,#ffffff0f);color:#fff;color:var(--text-primary,#fff)}.export-btn:hover{border-color:#4f46e5;border-color:var(--accent-primary,#4f46e5);color:#818cf8}.sessions-btn:hover{border-color:#f59e0b;border-color:var(--accent-warning,#f59e0b);color:#fbbf24}.settings-actions{margin-top:8px}.settings-save-btn{align-items:center;background:linear-gradient(135deg,#4f46e5,#7c3aed);background:var(--gradient-primary,linear-gradient(135deg,#4f46e5,#7c3aed));border:none;border-radius:12px;color:#fff;cursor:pointer;display:flex;font-size:16px;font-weight:600;gap:10px;justify-content:center;padding:16px;transition:all .3s ease;width:100%}.settings-save-btn:hover:not(:disabled){box-shadow:0 8px 30px #4f46e559;transform:translateY(-2px)}.settings-save-btn:disabled{cursor:not-allowed;opacity:.6}.spinner{height:20px;width:20px}[data-theme=light] .settings-page{background:#f8fafc}[data-theme=light] .settings-header-left h1{color:#0f172a}[data-theme=light] .settings-header-left p{color:#64748b}[data-theme=light] .settings-card{background:#fff;border-color:#0000000f}[data-theme=light] .settings-card-header{border-color:#0000000f}[data-theme=light] .settings-card-header h3{color:#0f172a}[data-theme=light] .settings-group label{color:#475569}[data-theme=light] .settings-input,[data-theme=light] .settings-select,[data-theme=light] .settings-textarea{background:#f1f5f9;border-color:#e2e8f0;color:#0f172a}[data-theme=light] .settings-input:focus,[data-theme=light] .settings-select:focus,[data-theme=light] .settings-textarea:focus{border-color:#4f46e5;box-shadow:0 0 0 3px #4f46e51a}[data-theme=light] .settings-input::placeholder,[data-theme=light] .settings-textarea::placeholder{color:#94a3b8}[data-theme=light] .settings-select option{background:#fff;color:#0f172a}[data-theme=light] .day-checkbox,[data-theme=light] .difficulty-option,[data-theme=light] .font-option,[data-theme=light] 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