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h3{font-size:1.2rem;color:var(--text-primary);margin:0}.duration{color:var(--text-secondary);font-size:.9rem}.topic-description{color:var(--text-secondary);margin:0;line-height:1.5}@media (max-width: 768px){.course-details-container{padding:0 1rem;margin:1rem auto}.course-header h1{font-size:1.5rem}.course-meta{flex-wrap:wrap;gap:.75rem}.course-description{font-size:1rem;margin-bottom:2rem}.topics-list h2{font-size:1.3rem}.topic-card{padding:1rem}}.kb-selector-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1300;padding:20px}.kb-selector-modal{width:100%;max-width:800px;height:90vh;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 10px 30px #0003;background-color:#fff;position:relative;z-index:1}@media (max-width: 768px){.kb-selector-overlay{padding:8px}.kb-selector-modal{max-width:100%;width:100%;height:90vh;margin:0 auto;border-radius:12px}.kb-selector-header{padding:12px 16px}.kb-selector-header h2{font-size:1.1rem}.kb-selector-body{padding:12px}.kb-selector-footer{padding:10px 12px;flex-wrap:wrap;gap:6px}.kb-footer-separator{width:100%;justify-content:flex-end}.kb-cancel-button,.kb-confirm-button{min-width:90px;padding:8px 16px}}@media (max-width: 480px){.kb-selector-overlay{padding:0}.kb-selector-modal{max-width:100vw;height:100vh;border-radius:0;margin:0}}@media (min-width: 769px) and (max-width: 1024px){.kb-selector-modal{max-width:800px}}.kb-selector-header{padding:16px 20px;display:flex;align-items:center;position:relative;border-bottom:1px solid rgba(0,0,0,.15)}.kb-selector-header h2{margin:0;font-size:1.5rem;font-weight:600}.kb-selection-count{margin-left:16px;padding:4px 12px;border-radius:20px;font-size:.875rem;font-weight:500}.kb-close-button{position:absolute;right:24px;background:none;border:none;font-size:1.25rem;cursor:pointer;padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color .2s}.kb-selector-body{flex:1;overflow-y:auto;padding:16px 20px}.kb-loading{text-align:center;padding:40px 0;font-size:1rem}.kb-error{padding:12px 16px;border-left:4px solid;border-radius:4px;margin-bottom:20px}.kb-automatic-option{display:flex;align-items:center;padding:18px 20px;border-radius:8px;cursor:pointer;transition:all .2s;margin-bottom:24px}.kb-automatic-icon{font-size:1.5rem;margin-right:16px}.kb-automatic-content h3{margin:0 0 4px;font-size:1.125rem;font-weight:600}.kb-automatic-content p{margin:0;font-size:.875rem}.kb-selected-section{margin-bottom:24px;padding:16px;border-radius:8px}.kb-section-title{font-size:1.125rem;font-weight:600;margin:0 0 12px;order:1}.kb-filter-container{order:2;position:relative;width:160px}.kb-sort-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;font-size:1rem;padding:6px 32px 6px 0;width:100%;cursor:pointer}.kb-sort-select option{padding:8px 16px}.kb-sort-select::-ms-expand{display:none}.kb-selected-list{display:flex;flex-wrap:wrap;gap:8px}.kb-selected-item{display:flex;align-items:center;padding:6px 12px;border-radius:20px;font-size:.875rem;cursor:pointer;border:1px solid}.kb-name{margin-right:8px}.kb-deselect{font-size:.75rem;cursor:pointer;padding:2px;display:flex;align-items:center;justify-content:center}.kb-section{margin-bottom:28px}.kb-list{display:flex;flex-direction:column;gap:12px}.kb-item{display:flex;padding:14px 16px;border-radius:8px;border:1px solid;cursor:pointer;transition:all .2s}.kb-checkbox{width:24px;height:24px;margin-right:12px;display:flex;align-items:center;justify-content:center}.kb-checkbox .kb-checkmark{display:none}.kb-item.kb-selected .kb-checkbox{border-color:#1596b2}.kb-item.kb-selected .kb-checkbox:after{content:"";width:8px;height:8px;background:#1596b2;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.kb-content{flex:1;text-align:left;margin-left:25px}.kb-title{margin:0 0 4px;font-size:1rem;font-weight:600}.kb-description{margin:0 0 8px;font-size:.875rem;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-align:left}.kb-owner{display:inline-block;font-size:.75rem;padding:2px 8px;border-radius:4px}.kb-shared{border-left-width:3px}.kb-empty{text-align:center;padding:40px 0;font-style:italic}.kb-selector-footer{padding:12px 20px;border-top:1px solid rgba(0,0,0,.15);display:flex;justify-content:space-between;align-items:center;gap:12px}.kb-create-new-button{padding:8px 18px;border:1px solid;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s}.kb-footer-separator{display:flex;justify-content:flex-end;align-items:center;gap:12px}.kb-cancel-button,.kb-confirm-button{border:1px solid;min-width:120px;text-align:center}.kb-cancel-button{display:inline-flex;align-items:center;justify-content:center;gap:4px;font-size:.875rem;font-weight:500;padding:8px 22px;border:1px solid #1596b2;border-radius:8px;background-color:transparent;color:#1596b2;cursor:pointer;transition:all .2s;min-height:36.5px}.kb-cancel-button:hover{background-color:#1596b229;border-color:#1596b2!important;color:#1596b2!important}.kb-confirm-button{padding:8px 18px;border:1px solid;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s}.kb-disabled{opacity:.6;cursor:not-allowed}.kb-files-list{margin-top:10px;padding-left:20px;max-height:200px;overflow-y:auto}.kb-file-item{cursor:pointer;padding:5px;border:1px solid #ccc;border-radius:4px;margin-bottom:5px;transition:background-color .2s}.kb-file-item:hover{background-color:#f0f0f0}.kb-file-item.selected{border-color:#5da9e9}.kb-manage-button{transition:background-color .2s ease;border-radius:6px}.kb-manage-button:hover{background-color:#1596b229}.kb-selector-overlay.kb-dark-mode .kb-manage-button:hover{background-color:#ffffff1a}.kb-light-mode .kb-selector-modal{background-color:#fff}.kb-light-mode .kb-selector-header{border-bottom:1px solid #e9ecef}.kb-light-mode .kb-selector-header h2{color:#333}.kb-light-mode .kb-selection-count{background-color:#e9f5ff;color:#0078d4}.kb-light-mode .kb-close-button{color:#6c757d}.kb-light-mode .kb-close-button:hover{background-color:#f0f0f0}.kb-light-mode .kb-loading{color:#6c757d}.kb-light-mode .kb-error{background-color:#fff4f4;border-color:#e35252;color:#e35252}.kb-light-mode .kb-automatic-option{background-color:#f8f9fa;border-color:#e9ecef}.kb-light-mode .kb-automatic-option:hover{background-color:#e9f5ff;border-color:#b3d7ff}.kb-light-mode .kb-automatic-icon{color:#0078d4}.kb-light-mode .kb-automatic-content h3{color:#212529}.kb-light-mode .kb-automatic-content p{color:#6c757d}.kb-light-mode .kb-selected-section{background-color:#f0f9ff;border-color:#90c5f0}.kb-light-mode .kb-section-title{color:#343a40}.kb-light-mode .kb-selected-item{background-color:#e6f4ff;border-color:#b3d7ff;color:#0078d4}.kb-light-mode .kb-deselect{color:red}.kb-light-mode .kb-item{border-color:#e9ecef;background-color:#fff}.kb-light-mode .kb-item:hover{background-color:var(--kxpert-palette-action-hover);border-color:var(--kxpert-palette-primary-main)}.kb-light-mode .kb-selected{border-color:#0078d4;background-color:#f0f7ff}.kb-light-mode .kb-checkbox{border-color:#ced4da}.kb-light-mode .kb-selected .kb-checkbox{border-color:#0078d4;background-color:#0078d4}.kb-light-mode .kb-checkmark{color:#fff}.kb-light-mode .kb-title{color:#343a40}.kb-light-mode .kb-description{color:#6c757d}.kb-light-mode .kb-owner{color:#6c757d;background-color:#f8f9fa}.kb-light-mode .kb-shared{border-left-color:#6f42c1}.kb-light-mode .kb-empty{color:#6c757d}.kb-light-mode .kb-selector-footer{border-top-color:#e9ecef}.kb-light-mode .kb-cancel-button{background-color:transparent;color:#1596b2;border-color:#1596b2}.kb-light-mode .kb-cancel-button:hover{background-color:#1596b229;border-color:#1596b2!important;color:#1596b2!important}.kb-light-mode .kb-confirm-button{background-color:#0078d4;border-color:#0078d4;color:#fff}.kb-light-mode .kb-create-new-button{color:#0097b2;border:1.5px solid #0097b2}.kb-light-mode .kb-confirm-button:hover,.kb-light-mode .kb-create-new-button:hover{background-color:#006cbe}.kb-light-mode .kb-disabled:hover{background-color:#0078d4}.kb-dark-mode .kb-selector-modal{background-color:#262626}.kb-dark-mode .kb-selector-header{border-bottom:1px solid rgba(255,255,255,.2)}.kb-dark-mode .kb-selector-header h2{color:#e0e0e0}.kb-dark-mode 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.kb-item:hover{border-color:#0078d4;background-color:#1f3a55}.kb-dark-mode .kb-selected{border-color:#0078d4;background-color:#0c2c47}.kb-dark-mode .kb-checkbox{border-color:#666}.kb-dark-mode .kb-selected .kb-checkbox{border-color:#0078d4;background-color:#0078d4}.kb-dark-mode .kb-checkmark{color:#fff}.kb-dark-mode .kb-title{color:#e0e0e0}.kb-dark-mode .kb-description{color:#b0b0b0}.kb-dark-mode .kb-owner{color:#b0b0b0;background-color:#333}.kb-dark-mode .kb-shared{border-left-color:#9975e2}.kb-dark-mode .kb-empty{color:#b0b0b0}.kb-dark-mode .kb-selector-footer{border-top-color:#fff3}.kb-dark-mode .kb-cancel-button{background-color:transparent;color:#1596b2;border-color:#1596b2}.kb-dark-mode .kb-cancel-button:hover{background-color:#1596b229;border-color:#1596b2!important;color:#1596b2!important}.kb-dark-mode .kb-confirm-button{background-color:#0078d4;border-color:#0078d4;color:#fff}.kb-dark-mode .kb-create-new-button{background-color:#222;color:#26c6da;border:1.5px solid #26c6da}.kb-dark-mode .kb-confirm-button:hover,.kb-dark-mode .kb-create-new-button:hover{background-color:#0086f0}.kb-dark-mode .kb-disabled:hover{background-color:#0078d4}.prompt-selector-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1300;padding:20px}.prompt-selector-dialog{width:100%;max-width:700px;max-height:90vh;border-radius:12px;overflow:hidden;display:flex;position:relative;z-index:1;flex-direction:column;box-shadow:0 10px 30px #0003}.prompt-selector-header{display:flex;align-items:center;justify-content:flex-start;gap:16px;padding:16px 20px;border-bottom:1px solid rgba(0,0,0,.1)}.prompt-selector-body{flex:1;overflow-y:auto;padding:24px}.prompt-sort-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;font-size:.95rem;cursor:pointer}.prompt-item{display:flex;padding:14px 16px;border-radius:8px;border:1px solid;cursor:pointer;transition:all .2s;margin-bottom:10px}.prompt-list{display:flex;flex-direction:column;gap:12px}.prompt-selector-footer{padding:12px 20px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(0,0,0,.1)}.prompt-cancel-button{display:inline-flex;align-items:center;justify-content:center;gap:4px;font-size:.875rem;font-weight:500;padding:8px 22px;border:1px solid #1596b2;border-radius:8px;background-color:transparent;color:#1596b2;cursor:pointer;transition:all .2s;min-height:36.5px}.prompt-cancel-button:hover{background-color:#1596b229;border-color:#1596b2!important;color:#1596b2!important}.prompt-manage-button{transition:background-color .2s ease;border-radius:6px}.prompt-manage-button:hover{background-color:#1596b229}@media (max-width: 768px){.prompt-selector-dialog{max-width:95vw}.prompt-selector-header{padding:12px 16px;gap:10px}.prompt-selector-body{padding:16px}.prompt-selector-footer{padding:10px 16px}}@media (max-width: 480px){.prompt-selector-dialog{max-width:100vw;max-height:100vh;border-radius:0}}