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40px);height:calc(100vh - 120px);right:20px;bottom:80px}.chatbot-toggle{right:20px;bottom:20px}}.settings{min-height:100vh;background:#f5f7fa;padding:2rem}.settings-container{max-width:800px;margin:0 auto;background:#fff;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden}.settings-header{background:#fff;border-bottom:1px solid #e5e7eb;padding:1.5rem 2rem;display:flex;justify-content:space-between;align-items:center}.settings-title{font-size:1.75rem;font-weight:700;color:#111827;margin:0}.close-settings-btn{width:40px;height:40px;border:none;background:#f3f4f6;border-radius:8px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;color:#6b7280}.close-settings-btn:hover{background:#e5e7eb;color:#111827}.close-settings-btn svg{color:inherit}.settings-content{padding:2rem}.settings-section{margin-bottom:2rem}.settings-section:last-child{margin-bottom:0}.section-title{font-size:1.25rem;font-weight:700;color:#111827;margin:0 0 1rem}.info-grid{display:flex;flex-direction:column;gap:1rem}.info-row{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px}.info-label{font-weight:500;color:#6b7280}.info-value{font-weight:600;color:#111827}.info-value.badge{padding:.5rem 1rem;border-radius:6px;font-size:.875rem}.info-value.badge.normal{background:#e5e7eb;color:#374151}.info-value.badge.premium{background:#fef3c7;color:#92400e}.limit-info{padding:1.5rem;background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px}.limit-text{font-size:1rem;font-weight:600;color:#111827;margin:0 0 .5rem}.limit-subtext{font-size:.875rem;color:#6b7280;margin:0}.toggle-group{padding:1rem;background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px}.toggle-label{display:flex;align-items:center;gap:1rem;cursor:pointer}.theme-toggle{position:relative;width:48px;height:24px;appearance:none;background:#d1d5db;border-radius:12px;outline:none;transition:all .3s ease;cursor:pointer}.theme-toggle:checked{background:#3b82f6}.theme-toggle:before{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:#fff;top:2px;left:2px;transition:all .3s ease;box-shadow:0 2px 4px #0003}.theme-toggle:checked:before{left:26px}.toggle-text{font-weight:500;color:#111827}.language-group{display:flex;gap:1rem}.language-btn{flex:1;padding:.75rem 1.5rem;background:#111827;color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s ease}.language-btn:hover:not(:disabled){background:#1f2937}.language-btn.active{background:#111827;color:#fff;opacity:1}.language-btn:not(.active){opacity:.6}.actions-group{display:flex;flex-direction:column;gap:.75rem}.logout-btn{width:100%;padding:.75rem 1.5rem;background:#111827;color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s ease}.logout-btn:hover:not(:disabled){background:#1f2937;transform:translateY(-1px)}.logout-btn:disabled{opacity:.6;cursor:not-allowed}.logout-all-btn{width:100%;padding:.75rem 1.5rem;background:#111827;color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s ease}.logout-all-btn:hover:not(:disabled){background:#1f2937;transform:translateY(-1px)}.logout-all-btn:disabled{opacity:.6;cursor:not-allowed}[data-theme=dark] .settings{background:#111827}[data-theme=dark] .settings-container,[data-theme=dark] .settings-header{background:#1f2937;border-color:#374151}[data-theme=dark] .settings-title{color:#f9fafb}[data-theme=dark] .close-settings-btn{background:#374151;color:#d1d5db}[data-theme=dark] .close-settings-btn:hover{background:#4b5563;color:#f9fafb}[data-theme=dark] .section-title{color:#f9fafb}[data-theme=dark] .info-row{background:#374151;border-color:#4b5563}[data-theme=dark] .info-label{color:#d1d5db}[data-theme=dark] .info-value{color:#f9fafb}[data-theme=dark] .info-value.badge.normal{background:#374151;color:#d1d5db}[data-theme=dark] .info-value.badge.premium{background:#78350f;color:#fbbf24}[data-theme=dark] .limit-info{background:#374151;border-color:#4b5563}[data-theme=dark] .limit-text{color:#f9fafb}[data-theme=dark] .limit-subtext{color:#d1d5db}[data-theme=dark] .toggle-group{background:#374151;border-color:#4b5563}[data-theme=dark] .toggle-text{color:#f9fafb}[data-theme=dark] .language-btn{background:#111827;color:#fff}[data-theme=dark] .language-btn:hover:not(:disabled){background:#1f2937}[data-theme=dark] .language-btn.active{background:#111827;color:#fff;opacity:1}[data-theme=dark] .language-btn:not(.active){opacity:.6}[data-theme=dark] .logout-btn{background:#111827;color:#fff}[data-theme=dark] .logout-btn:hover:not(:disabled){background:#1f2937}[data-theme=dark] .logout-all-btn{background:#111827;color:#fff}[data-theme=dark] .logout-all-btn:hover:not(:disabled){background:#1f2937}@media(max-width:768px){.settings{padding:1rem}.settings-header{padding:1rem 1.5rem}.settings-content{padding:1.5rem}}.modal-overlay{position:fixed;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;max-width:500px;width:90%;max-height:90vh;overflow:hidden;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{padding:1.5rem;display:flex;align-items:center;gap:1rem;border-bottom:1px solid #e5e7eb;position:relative}.modal-header.modal-success{background:#f0fdf4;border-bottom-color:#86efac}.modal-header.modal-error{background:#fef2f2;border-bottom-color:#fecaca}.modal-header.modal-warning{background:#fffbeb;border-bottom-color:#fde68a}.modal-header.modal-info{background:#eff6ff;border-bottom-color:#bfdbfe}.modal-icon{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;flex-shrink:0}.modal-header.modal-success .modal-icon{background:#22c55e;color:#fff}.modal-header.modal-error .modal-icon{background:#ef4444;color:#fff}.modal-header.modal-warning .modal-icon{background:#f59e0b;color:#fff}.modal-header.modal-info .modal-icon{background:#3b82f6;color:#fff}.modal-title{flex:1;font-size:1.25rem;font-weight:600;color:#111827;margin:0}.modal-close{width:32px;height:32px;border:none;background:transparent;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#6b7280;transition:all .2s ease;flex-shrink:0}.modal-close:hover{background:#0000000d;color:#111827}.modal-body{padding:1.5rem}.modal-message{font-size:1rem;color:#374151;line-height:1.6;margin:0}.modal-footer{padding:1rem 1.5rem;border-top:1px solid #e5e7eb;display:flex;justify-content:flex-end;gap:12px}.modal-btn{padding:.625rem 1.5rem;background:#111827;color:#fff;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s ease}.modal-btn:hover{background:#1f2937;transform:translateY(-1px)}.modal-btn-secondary{background:#fff;color:#374151;border:1px solid #d1d5db}.modal-btn-secondary:hover{background:#f3f4f6;border-color:#9ca3af;color:#111827}[data-theme=dark] .modal-btn-secondary{background:transparent;color:#d1d5db;border-color:#4b5563}[data-theme=dark] .modal-btn-secondary:hover{background:#ffffff0d;border-color:#6b7280;color:#fff}[data-theme=dark] .modal-content{background:#1f2937}[data-theme=dark] .modal-header{border-color:#374151}[data-theme=dark] .modal-header.modal-success{background:#064e3b;border-color:#059669}[data-theme=dark] .modal-header.modal-error{background:#7f1d1d;border-color:#dc2626}[data-theme=dark] .modal-header.modal-warning{background:#78350f;border-color:#d97706}[data-theme=dark] .modal-header.modal-info{background:#1e3a8a;border-color:#3b82f6}[data-theme=dark] .modal-title{color:#f9fafb}[data-theme=dark] .modal-close{color:#d1d5db}[data-theme=dark] .modal-close:hover{background:#ffffff1a;color:#f9fafb}[data-theme=dark] .modal-message{color:#d1d5db}[data-theme=dark] .modal-footer{border-color:#374151}.dashboard-container{display:flex;min-height:100vh;background:#f5f7fa}.dashboard-sidebar{width:280px;background:#fff;border-right:1px solid #e5e7eb;display:flex;flex-direction:column;position:fixed;height:100vh;left:0;top:0;z-index:100}.sidebar-header{padding:2rem 1.5rem;border-bottom:1px solid #e5e7eb;display:flex;justify-content:space-between;align-items:center}.sidebar-logo{font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,#0061ff,#60efff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.dashboard-sidebar.collapsed{width:80px}.dashboard-sidebar.collapsed .sidebar-logo,.dashboard-sidebar.collapsed .nav-item span,.dashboard-sidebar.collapsed .sidebar-footer-btn span{display:none}.dashboard-sidebar.collapsed .sidebar-header{justify-content:center;padding:2rem .5rem}.dashboard-sidebar.collapsed .upgrade-btn{display:none}.dashboard-sidebar.collapsed .nav-item,.dashboard-sidebar.collapsed .sidebar-footer-btn{justify-content:center;padding:.875rem 0}.dashboard-sidebar.collapsed+.dashboard-main{margin-left:80px}.sidebar-nav{flex:1;padding:1rem 0;overflow-y:auto}.nav-item{width:100%;display:flex;align-items:center;gap:.75rem;padding:.875rem 1.5rem;border:none;background:transparent;color:#6b7280;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s ease;text-align:left}.nav-item:hover{background:#f9fafb;color:#111827}.nav-item.active{background:#f3f4f6;color:#111827;border-right:3px solid #111827}.nav-item svg{flex-shrink:0}.sidebar-footer{padding:1rem 0;border-top:1px solid #e5e7eb;display:flex;flex-direction:column;gap:.5rem}.sidebar-footer-btn{width:100%;display:flex;align-items:center;gap:.75rem;padding:.875rem 1.5rem;border:none;background:transparent;color:#6b7280;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s 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#0000000d}.stat-icon{width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:#f9fafb;border-radius:10px;color:#6b7280}.stat-content{flex:1}.stat-value{font-size:1.75rem;font-weight:700;color:#111827;line-height:1.2}.stat-label{font-size:.875rem;color:#6b7280;margin-top:.25rem}.storage-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem;margin-bottom:2rem}.storage-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.storage-title{font-size:1.125rem;font-weight:600;color:#111827;margin:0}.storage-text{font-size:.875rem;color:#6b7280}.storage-bar{width:100%;height:8px;background:#e5e7eb;border-radius:4px;overflow:hidden;margin-bottom:1rem}.storage-fill{height:100%;background:#111827;transition:width .3s ease}.storage-footer{display:flex;align-items:center;gap:.5rem}.badge-label{font-size:.875rem;color:#6b7280}.badge-value{font-size:.875rem;font-weight:600;padding:.25rem .75rem;border-radius:6px}.badge-value.normal{background:#e5e7eb;color:#374151}.badge-value.premium{background:#fef3c7;color:#92400e}.files-section{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem}.upload-area-compact{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem;padding:1rem;background:#f9fafb;border:1px dashed #d1d5db;border-radius:10px}.upload-btn-compact{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#111827;color:#fff;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s ease}.upload-btn-compact:hover{background:#1f2937;transform:translateY(-1px)}.upload-btn-compact svg{color:#fff}.upload-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}.storage-limit-text{font-size:.75rem;color:#6b7280;margin-left:auto}.files-list{display:flex;flex-direction:column;gap:.5rem}.file-item{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:1rem 1.5rem;transition:all .2s ease;display:flex;align-items:center;gap:1rem;position:relative}.file-item:hover{background:#f9fafb;border-color:#d1d5db}.file-item-icon{display:flex;align-items:center;justify-content:center;color:#6b7280;flex-shrink:0}.file-item-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:.25rem}.file-item-name{font-weight:500;color:#111827;font-size:.95rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-item-meta{display:flex;align-items:center;gap:.5rem;font-size:.75rem;color:#6b7280}.file-item-actions{display:flex;align-items:center;gap:.5rem;flex-shrink:0}.file-item 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#e5e7eb;border-radius:10px}.analytics-label{font-size:.875rem;color:#6b7280;margin-bottom:.5rem}.analytics-value{font-size:1.5rem;font-weight:700;color:#111827}.level-progress-card{margin-top:0}.level-progress-content{display:flex;flex-direction:column;gap:2rem}.current-level-display{display:flex;align-items:center;gap:1.5rem;padding:0}.level-info{flex:1}.level-name-large{font-size:2rem;font-weight:700;color:#111827}.level-hours{font-size:1rem;color:#6b7280}.level-progress-section{display:flex;flex-direction:column;gap:1rem}.progress-header{display:flex;justify-content:space-between;align-items:center}.progress-label{font-size:.875rem;font-weight:600;color:#6b7280}.progress-percentage{font-size:1rem;font-weight:700;color:#111827}.progress-bar-container{width:100%;height:12px;background:#e5e7eb;border-radius:6px;overflow:hidden;position:relative}.progress-bar-fill{height:100%;background:linear-gradient(135deg,#3b82f6,#2563eb);border-radius:6px;transition:width .3s 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#00000026}.duration-discount{font-size:.65rem;padding:.15rem .6rem;background:#000;color:#fff;border-radius:100px;font-weight:700}.duration-btn.active .duration-discount{background:#fff;color:#000}.duration-btn .duration-discount{background:#e5e5e5;color:#000}.pricing-display{text-align:center;margin-bottom:3rem}.original-price-single{color:#999;text-decoration:line-through;font-size:1.1rem;display:block;margin-bottom:.25rem}.current-price-single{display:flex;align-items:flex-start;justify-content:center;gap:.25rem;line-height:1}.price-amount-single{font-size:4rem;font-weight:800;color:#000;letter-spacing:-2px}.price-currency-single{font-size:1.5rem;font-weight:600;color:#666;margin-top:.75rem}.price-period-single{color:#666;font-size:1rem;margin-top:.5rem;display:block}.features-section{margin-bottom:2.5rem;padding:0 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