.step-card{display:flex;gap:var(--spacing-2);padding:var(--spacing-3);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast)}.step-card:hover{border-color:var(--color-gray-300);box-shadow:var(--shadow-sm)}.step-card-selected{border-color:var(--color-black);box-shadow:0 0 0 1px var(--color-black)}.step-card-drag-handle{display:flex;align-items:center;justify-content:center;width:20px;color:var(--color-gray-400);cursor:grab;flex-shrink:0;transition:color var(--transition-fast)}.step-card-drag-handle:hover{color:var(--color-gray-600)}.step-card-drag-handle:active{cursor:grabbing}.step-card-content{flex:1;min-width:0}.step-card-header{display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-2)}.step-card-number{display:flex;align-items:center;justify-content:center;width:22px;height:22px;font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-white);background-color:var(--color-black);border-radius:var(--radius-full);flex-shrink:0}.step-card-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-black);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.step-card-meta{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-2)}.step-card-goals{display:flex;gap:2px}.step-card-goal{display:flex;align-items:center;justify-content:center;width:18px;height:18px;font-size:10px;font-weight:var(--font-weight-semibold);border-radius:var(--radius-sm)}.goal-covered{background-color:var(--color-green-light);color:var(--color-green-dark)}.goal-uncovered{background-color:var(--color-gray-100);color:var(--color-gray-400)}.step-card-warning{display:flex;align-items:center;gap:var(--spacing-1);margin-top:var(--spacing-2);padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs);color:var(--color-red-dark);background-color:var(--color-red-light);border-radius:var(--radius-sm)}[data-theme=dark] .step-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .step-card:hover{border-color:var(--color-gray-600)}[data-theme=dark] .step-card.selected{border-color:var(--color-gray-400)}[data-theme=dark] .step-card-title{color:var(--color-text)}[data-theme=dark] .step-number{background-color:var(--color-gray-300);color:var(--color-gray-900)}[data-theme=dark] .goal-uncovered{background-color:var(--color-gray-800);color:var(--color-gray-400)}.sidebar{width:var(--sidebar-width);background-color:var(--color-white);border-right:1px solid var(--color-border);display:flex;flex-direction:column;height:auto;min-height:calc(100vh - var(--header-height));transition:width .3s ease}.sidebar--collapsed{width:50px}.sidebar--collapsed .sidebar-header-actions,.sidebar--collapsed .sidebar-content,.sidebar--collapsed .sidebar-title{display:none}.sidebar--collapsed .sidebar-collapse-btn{margin:0 auto}.sidebar-header{display:flex;flex-direction:column;gap:var(--spacing-3);padding:var(--spacing-4);border-bottom:1px solid var(--color-border)}.sidebar-header-top{display:flex;align-items:center;justify-content:space-between}.sidebar-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-gray-500);text-transform:uppercase;letter-spacing:.05em}.sidebar-collapse-btn{background:none;border:none;cursor:pointer;padding:4px 8px;color:var(--color-gray-500);border-radius:var(--radius-sm);transition:background-color .2s ease,color .2s ease;display:flex;align-items:center;justify-content:center}.sidebar-collapse-btn:hover{background-color:var(--color-gray-100);color:var(--color-gray-700)}.sidebar-header-actions{display:flex;flex-direction:column;gap:.5rem}.sidebar-header-actions .btn{white-space:nowrap;width:100%;justify-content:center}.sidebar-content{padding:var(--spacing-2)}.sidebar-empty{padding:var(--spacing-8) var(--spacing-4);text-align:center}.step-list{display:flex;flex-direction:column;gap:var(--spacing-2)}.sidebar-token-usage{padding:var(--spacing-3) var(--spacing-4);border-top:1px solid var(--color-border);margin-top:auto}.sidebar--collapsed .sidebar-token-usage{display:none}.sidebar-token-label{font-size:.7rem;color:var(--color-text-secondary, #757575);margin-bottom:.25rem}.sidebar-token-bar{height:4px;background-color:var(--color-border);border-radius:2px;overflow:hidden;margin-bottom:.25rem}.sidebar-token-fill{height:100%;background-color:#43a047;border-radius:2px;transition:width .3s ease}.sidebar-token-fill.sidebar-token-warn{background-color:#f59e0b}.sidebar-token-fill.sidebar-token-full{background-color:#ef5350}.sidebar-token-reset{font-size:.65rem;color:var(--color-text-secondary, #9e9e9e)}@media (max-width: 768px){.sidebar{position:fixed;left:-100%;width:var(--mobile-sidebar-width);max-width:300px;top:var(--header-height);height:calc(100vh - var(--header-height) - var(--mobile-nav-height));z-index:999;transition:left .3s cubic-bezier(.4,0,.2,1);box-shadow:2px 0 8px #00000026;border-radius:0}.sidebar--open{left:0}.sidebar-header{padding:var(--mobile-spacing-3)}.sidebar-content{padding:var(--mobile-spacing-2)}.step-list{gap:var(--mobile-spacing-2)}}.sidebar-overlay{display:none}@media (max-width: 768px){.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:998;opacity:0;visibility:hidden;transition:all .3s ease}.sidebar-overlay--active{opacity:1;visibility:visible;display:block}}[data-theme=dark] .sidebar,[data-theme=dark] .sidebar-header{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .sidebar-collapse-btn:hover{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .sidebar-step-item{color:var(--color-text)}[data-theme=dark] .sidebar-step-item:hover{background-color:var(--color-gray-800)}[data-theme=dark] .sidebar-step-item.active{background-color:var(--color-gray-700)}.lesson-card{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-4);background-color:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast)}.lesson-card:hover{background-color:var(--color-white);border-color:var(--color-gray-300);box-shadow:var(--shadow-sm)}.lesson-card-drag-handle{display:flex;align-items:center;justify-content:center;width:20px;color:var(--color-gray-400);cursor:grab;flex-shrink:0;transition:color var(--transition-fast)}.lesson-card-drag-handle:hover{color:var(--color-gray-600)}.lesson-card-drag-handle:active{cursor:grabbing}.lesson-card-content{flex:1;min-width:0}.lesson-card-header{display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-2)}.lesson-card-number{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-500);text-transform:uppercase;letter-spacing:.05em}.lesson-card-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-black);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-card-meta{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-4)}.lesson-card-stats{display:flex;align-items:center;gap:var(--spacing-3)}.lesson-card-goals{display:flex;gap:2px}.lesson-goal-badge{display:flex;align-items:center;justify-content:center;width:20px;height:20px;font-size:10px;font-weight:var(--font-weight-semibold);border-radius:var(--radius-sm)}.badge-goal-inactive{background-color:var(--color-gray-100);color:var(--color-gray-400)}.lesson-card-date{margin-top:var(--spacing-2)}.lesson-card-actions{display:flex;align-items:center;gap:var(--spacing-1);flex-shrink:0}.lesson-card-arrow{color:var(--color-gray-400);transition:color var(--transition-fast),transform var(--transition-fast)}.lesson-card:hover .lesson-card-arrow{color:var(--color-gray-600);transform:translate(2px)}.lesson-done-checkbox{width:18px;height:18px;flex-shrink:0;cursor:pointer;accent-color:var(--color-primary, #3b82f6)}.lesson-card.lesson-done{opacity:.6}.lesson-card.lesson-done .lesson-card-title{text-decoration:line-through;color:var(--color-gray-400)}.lesson-card.lesson-done .lesson-card-number{text-decoration:line-through}[data-theme=dark] .lesson-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .lesson-card:hover{background-color:var(--color-gray-800);border-color:var(--color-gray-600)}[data-theme=dark] .lesson-card-goal-name{color:var(--color-text)}[data-theme=dark] .badge-goal-inactive{background-color:var(--color-gray-800);color:var(--color-gray-500)}[data-theme=dark] .lesson-card-title{color:var(--color-text)}[data-theme=dark] .lesson-card-number{color:var(--color-gray-400)}[data-theme=dark] .lesson-card.lesson-done .lesson-card-title{color:var(--color-gray-500)}.file-preview-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-fast)}.file-preview-modal{background-color:var(--color-white);border-radius:var(--radius-lg);min-width:400px;max-width:95vw;max-height:95vh;width:80vw;display:flex;flex-direction:column;animation:slideUp var(--transition-normal);box-shadow:var(--shadow-xl);border:1px solid var(--color-border)}.file-preview-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-4) var(--spacing-6);border-bottom:1px solid var(--color-border);flex-shrink:0}.file-preview-title{margin:0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.file-preview-close{width:32px;height:32px;border:none;background:none;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--color-gray-500);transition:background-color var(--transition-fast);flex-shrink:0;margin-left:var(--spacing-3)}.file-preview-close:hover{background-color:var(--color-gray-100)}.file-preview-content{padding:var(--spacing-6);overflow:auto;flex:1;min-height:200px;display:flex;align-items:center;justify-content:center;background-color:var(--color-gray-50)}.file-preview-image{max-width:100%;max-height:70vh;object-fit:contain;border-radius:var(--radius-md);display:block}.file-preview-video{max-width:100%;max-height:70vh;border-radius:var(--radius-md);outline:none}.file-preview-audio-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-6);width:100%;padding:var(--spacing-8)}.file-preview-audio-icon{color:var(--color-primary);opacity:.8}.file-preview-audio{width:100%;min-width:400px;max-width:700px;height:48px;border-radius:var(--radius-md)}.file-preview-document{width:100%;height:70vh;border:none;border-radius:var(--radius-md);background-color:var(--color-white)}.file-preview-metadata{text-align:center;padding:var(--spacing-8);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-3)}.file-preview-icon-large{color:var(--color-gray-400);margin-bottom:var(--spacing-2)}.file-preview-meta{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0}.file-preview-description{font-size:var(--font-size-sm);color:var(--color-text-secondary);max-width:400px;line-height:var(--line-height-normal)}.file-preview-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-4);padding:var(--spacing-12);color:var(--color-text-secondary)}.file-preview-loading p{margin:0;font-size:var(--font-size-sm)}.file-preview-error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-4);padding:var(--spacing-12);text-align:center}.file-preview-error-state p{margin:0;color:var(--color-red-dark)}.icon-error{color:var(--color-red-dark)}.file-preview-footer{display:flex;justify-content:flex-end;gap:var(--spacing-2);padding:var(--spacing-4) var(--spacing-6);border-top:1px solid var(--color-border);flex-shrink:0}.btn-primary,.btn-secondary{display:inline-flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);border:none;border-radius:var(--radius-md);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast)}.btn-primary{background-color:var(--color-black);color:var(--color-white)}.btn-primary:hover{background-color:var(--color-gray-800)}.btn-secondary{background-color:var(--color-white);color:var(--color-black);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-gray-50);border-color:var(--color-gray-300)}@media (max-width: 768px){.file-preview-modal{width:95vw;max-height:90vh}.file-preview-header,.file-preview-content,.file-preview-footer{padding:var(--spacing-4)}.file-preview-content{padding:var(--spacing-3)}.file-preview-image,.file-preview-video{max-height:60vh}.file-preview-document{height:60vh}.file-preview-metadata{padding:var(--spacing-6)}}[data-theme=dark] .file-preview-modal{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .file-preview-close{background-color:var(--color-gray-800);color:var(--color-text)}[data-theme=dark] .file-preview-close:hover{background-color:var(--color-gray-700)}.latex-editor-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:1100;animation:fadeIn var(--transition-fast)}.latex-editor-modal{width:90vw;height:90vh;background:var(--color-white);border-radius:var(--radius-lg);display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-xl);border:1px solid var(--color-border)}.latex-editor-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-3) var(--spacing-4);background:var(--color-surface);border-bottom:1px solid var(--color-border);flex-shrink:0;gap:var(--spacing-3)}.latex-editor-title{display:flex;align-items:center;gap:var(--spacing-2);font-weight:600;font-size:.95rem;color:var(--color-text-primary);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.latex-editor-dirty{color:var(--color-warning, #f59e0b);font-size:1.1rem;line-height:1;flex-shrink:0}.latex-editor-actions{display:flex;align-items:center;gap:var(--spacing-2);flex-shrink:0}.latex-btn{display:inline-flex;align-items:center;gap:var(--spacing-1);padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-white);color:var(--color-text-primary);font-size:.85rem;font-weight:500;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast)}.latex-btn:disabled{opacity:.5;cursor:not-allowed}.latex-btn-compile{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.latex-btn-compile:not(:disabled):hover{background:var(--color-primary-hover, var(--color-primary));opacity:.9}.latex-btn-save:not(:disabled):hover{background:var(--color-surface-hover, var(--color-surface))}.latex-btn-close{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius-md);border:none;background:transparent;color:var(--color-text-secondary);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast)}.latex-btn-close:hover{background:var(--color-surface-hover, var(--color-surface));color:var(--color-text-primary)}.latex-editor-error-bar{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);background:var(--color-error-bg, #fef2f2);color:var(--color-error, #dc2626);font-size:.85rem;border-bottom:1px solid var(--color-error-border, #fecaca);flex-shrink:0}.latex-editor-error-bar button{margin-left:auto;background:none;border:none;cursor:pointer;color:inherit;font-size:1rem;line-height:1;padding:0 var(--spacing-1)}.latex-editor-body{display:flex;flex-direction:row;flex:1;min-height:0;overflow:hidden}.latex-editor-source-pane{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.latex-editor-textarea{flex:1;width:100%;height:100%;resize:none;border:none;outline:none;font-family:Courier New,Courier,monospace;font-size:13px;line-height:1.5;padding:var(--spacing-4);background:var(--color-white);color:var(--color-text-primary);box-sizing:border-box}.latex-editor-divider{width:1px;background:var(--color-border);flex-shrink:0}.latex-editor-preview-pane{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden;background:var(--color-surface)}.latex-editor-pdf-frame{width:100%;height:100%;border:none;flex:1}.latex-editor-log-pane{display:flex;flex-direction:column;height:100%;overflow:hidden}.latex-editor-log-header{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-4);font-size:.85rem;font-weight:600;color:var(--color-error, #dc2626);border-bottom:1px solid var(--color-border);flex-shrink:0}.latex-editor-log{flex:1;margin:0;padding:var(--spacing-4);font-family:Courier New,Courier,monospace;font-size:12px;line-height:1.5;white-space:pre-wrap;word-break:break-all;overflow:auto;color:var(--color-text-primary)}.latex-editor-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-3);height:100%;color:var(--color-text-secondary);font-size:.9rem}.icon-spin{animation:spin 1s linear infinite}[data-theme=dark] .latex-editor-modal{background:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .latex-editor-header{background:var(--color-surface-elevated, var(--color-surface))}[data-theme=dark] .latex-editor-textarea{background:var(--color-background, #1a1a1a);color:var(--color-text-primary)}[data-theme=dark] .latex-editor-preview-pane{background:var(--color-background, #1a1a1a)}[data-theme=dark] .latex-editor-error-bar{background:#dc262626;border-color:#dc26264d}[data-theme=dark] .latex-btn{background:var(--color-surface);color:var(--color-text-primary)}[data-theme=dark] .latex-btn-close:hover{background:var(--color-surface-hover, rgba(255,255,255,.1))}.pres-viewer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1200;background:#000;display:flex;align-items:center;justify-content:center}.pres-viewer-iframe{width:100%;height:100%;border:none}.pres-viewer-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;border:none;background:#00000080;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s;z-index:1}.pres-viewer-overlay:hover .pres-viewer-close{opacity:1}.pres-viewer-close:hover{background:#000c}.slide-navigator{width:120px;flex-shrink:0;display:flex;flex-direction:column;border-right:1px solid var(--color-border);background:var(--color-surface);overflow:hidden}.slide-navigator-list{flex:1;overflow-y:auto;padding:8px 6px;display:flex;flex-direction:column;gap:6px}.slide-thumb{position:relative;display:flex;align-items:flex-start;gap:2px;padding:4px;border:2px solid transparent;border-radius:var(--radius-sm);cursor:pointer;transition:border-color var(--transition-fast),background var(--transition-fast);background:var(--color-white)}.slide-thumb:hover{border-color:var(--color-text-tertiary, #ccc)}.slide-thumb--active{border-color:var(--color-primary, #3b82f6);background:var(--color-primary-bg, rgba(59,130,246,.06))}.slide-thumb-grip{display:flex;align-items:center;color:var(--color-text-tertiary, #aaa);cursor:grab;flex-shrink:0;padding:2px 0}.slide-thumb-grip:active{cursor:grabbing}.slide-thumb-number{font-size:.65rem;font-weight:600;color:var(--color-text-secondary);min-width:12px;text-align:center;flex-shrink:0;padding-top:1px}.slide-thumb-preview{flex:1;min-width:0;height:48px;overflow:hidden;pointer-events:none;border-radius:2px;position:relative;background:#fff}.slide-thumb-preview-inner{position:absolute;top:0;left:0;width:960px;height:540px;transform-origin:0 0;transform:scale(.08)}.slide-thumb-preview-inner img{max-width:100%;height:auto}.slide-thumb-delete{position:absolute;top:2px;right:2px;display:none;align-items:center;justify-content:center;width:18px;height:18px;border:none;border-radius:var(--radius-sm);background:var(--color-error-bg, #fef2f2);color:var(--color-error, #dc2626);cursor:pointer;font-size:0}.slide-thumb:hover .slide-thumb-delete{display:flex}.slide-navigator-add{display:flex;align-items:center;justify-content:center;gap:4px;padding:8px;border:none;border-top:1px solid var(--color-border);background:transparent;color:var(--color-text-secondary);font-size:.75rem;cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast)}.slide-navigator-add:hover{background:var(--color-surface-hover, rgba(0,0,0,.04));color:var(--color-primary, #3b82f6)}[data-theme=dark] .slide-navigator{background:var(--color-surface-elevated, var(--color-surface))}[data-theme=dark] .slide-thumb{background:var(--color-surface)}[data-theme=dark] .slide-thumb--active{background:#3b82f61f}[data-theme=dark] .slide-navigator-add:hover{background:var(--color-surface-hover, rgba(255,255,255,.06))}.ce-panel{width:180px;border-right:1px solid var(--color-border);overflow-y:auto;background:var(--color-surface);flex-shrink:0;padding:var(--spacing-2) 0}.ce-panel-title{font-size:.8rem;font-weight:600;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;padding:var(--spacing-1) var(--spacing-3);margin-bottom:var(--spacing-1)}.ce-panel-group{margin-bottom:var(--spacing-2)}.ce-panel-group-label{font-size:.7rem;font-weight:600;color:var(--color-text-tertiary, #9ca3af);text-transform:uppercase;letter-spacing:.05em;padding:var(--spacing-1) var(--spacing-3)}.ce-panel-item{display:flex;align-items:center;gap:var(--spacing-2);padding:6px var(--spacing-3);cursor:grab;font-size:.82rem;color:var(--color-text-primary);transition:background .15s;-webkit-user-select:none;user-select:none}.ce-panel-item:hover{background:var(--color-surface-hover, rgba(0, 0, 0, .04))}.ce-panel-item:active{cursor:grabbing}.ce-panel-item-icon{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--radius-sm);background:var(--color-white);border:1px solid var(--color-border);font-size:.75rem;font-weight:700;color:var(--color-text-secondary);flex-shrink:0}.ce-panel-item-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}[data-theme=dark] .ce-panel{background:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .ce-panel-item:hover{background:var(--color-surface-hover, rgba(255, 255, 255, .06))}[data-theme=dark] .ce-panel-item-icon{background:var(--color-surface-elevated, rgba(255, 255, 255, .05));border-color:var(--color-border)}.ce-element{position:absolute;cursor:move;border:2px solid transparent;border-radius:3px;transition:border-color .15s;box-sizing:border-box}.ce-element:hover:not(.ce-element--selected):not(.ce-element--editing){border-color:#3b82f64d}.ce-element--selected{border-color:#3b82f6}.ce-element--editing{border-color:#3b82f6;cursor:text}.ce-element-content{width:100%;height:100%;outline:none;overflow:hidden;word-wrap:break-word}.ce-element--editing .ce-element-content{overflow:auto}.ce-element-content h1{font-size:2.2em;font-weight:700;margin:0;line-height:1.2}.ce-element-content h2{font-size:1.6em;font-weight:600;margin:0;line-height:1.3}.ce-element-content h3{font-size:1.2em;font-weight:600;margin:0;line-height:1.3}.ce-element-content p{margin:.3em 0;line-height:1.5}.ce-element-content ul,.ce-element-content ol{padding-left:1.5em;margin:.3em 0}.ce-element-content li{margin-bottom:.2em}.ce-element-content img{max-width:100%;display:block}.ce-element-content blockquote{margin:0}.ce-handle{position:absolute;width:10px;height:10px;background:#fff;border:2px solid #3b82f6;border-radius:2px;z-index:10}.ce-handle--n{top:-5px;left:50%;transform:translate(-50%)}.ce-handle--s{bottom:-5px;left:50%;transform:translate(-50%)}.ce-handle--e{right:-5px;top:50%;transform:translateY(-50%)}.ce-handle--w{left:-5px;top:50%;transform:translateY(-50%)}.ce-handle--ne{top:-5px;right:-5px}.ce-handle--nw{top:-5px;left:-5px}.ce-handle--se{bottom:-5px;right:-5px}.ce-handle--sw{bottom:-5px;left:-5px}.ce-toolbar{position:absolute;transform:translate(-50%);display:flex;align-items:center;gap:2px;padding:4px 6px;background:#1e293b;border-radius:6px;box-shadow:0 4px 12px #0003;z-index:2000;pointer-events:auto}.ce-toolbar-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:transparent;color:#e2e8f0;border-radius:4px;cursor:pointer;font-size:.8rem;font-weight:600;font-family:inherit;transition:background .15s}.ce-toolbar-btn:hover{background:#ffffff26}.ce-toolbar-sep{width:1px;height:20px;background:#fff3;margin:0 4px}.ce-canvas-wrapper{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;padding:var(--spacing-4);background:var(--color-background, #f3f4f6);overflow:hidden}.ce-canvas{position:relative;width:100%;max-width:960px;aspect-ratio:16 / 9;background:#fff;border-radius:var(--radius-md);box-shadow:0 4px 24px #0000001f;overflow:hidden}.ce-canvas-inner{position:absolute;top:0;right:0;bottom:0;left:0}[data-theme=dark] .ce-canvas-wrapper{background:var(--color-background, #111)}[data-theme=dark] .ce-canvas{background:#fff;box-shadow:0 4px 24px #0006}.ce-props{width:200px;border-left:1px solid var(--color-border);background:var(--color-surface);flex-shrink:0;overflow-y:auto;padding:var(--spacing-3)}.ce-props-empty{color:var(--color-text-tertiary, #9ca3af);font-size:.82rem;text-align:center;padding-top:var(--spacing-6)}.ce-props-title{font-size:.8rem;font-weight:600;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--spacing-2)}.ce-props-type{font-size:.75rem;color:var(--color-text-tertiary, #9ca3af);background:var(--color-surface-hover, rgba(0,0,0,.04));padding:2px 8px;border-radius:var(--radius-sm);display:inline-block;margin-bottom:var(--spacing-3)}.ce-props-grid{display:grid;grid-template-columns:24px 1fr;gap:6px 8px;align-items:center;margin-bottom:var(--spacing-3)}.ce-props-label{font-size:.75rem;font-weight:600;color:var(--color-text-secondary)}.ce-props-input-wrap{display:flex;align-items:center;gap:4px}.ce-props-input{width:100%;padding:4px 6px;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:.8rem;background:var(--color-white);color:var(--color-text-primary);outline:none;transition:border-color .15s}.ce-props-input:focus{border-color:#3b82f6}.ce-props-unit{font-size:.7rem;color:var(--color-text-tertiary, #9ca3af);flex-shrink:0}.ce-props-section{margin-top:var(--spacing-3);padding-top:var(--spacing-3);border-top:1px solid var(--color-border)}.ce-props-z-buttons{display:flex;gap:6px;margin-top:var(--spacing-1)}.ce-props-btn{display:inline-flex;align-items:center;gap:4px;padding:5px 10px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-white);color:var(--color-text-primary);font-size:.75rem;font-weight:500;cursor:pointer;transition:background .15s}.ce-props-btn:hover{background:var(--color-surface-hover, rgba(0,0,0,.04))}.ce-props-btn--delete{color:#dc2626;border-color:#dc26264d;width:100%;justify-content:center}.ce-props-btn--delete:hover{background:#dc262614}[data-theme=dark] .ce-props{background:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .ce-props-input{background:var(--color-surface-elevated, rgba(255,255,255,.05));border-color:var(--color-border);color:var(--color-text-primary)}[data-theme=dark] .ce-props-type{background:var(--color-surface-elevated, rgba(255,255,255,.05))}[data-theme=dark] .ce-props-btn{background:var(--color-surface-elevated, rgba(255,255,255,.05));border-color:var(--color-border);color:var(--color-text-primary)}[data-theme=dark] .ce-props-btn:hover{background:var(--color-surface-hover, rgba(255,255,255,.1))}[data-theme=dark] .ce-props-btn--delete{color:#f87171;border-color:#f871714d}[data-theme=dark] .ce-props-btn--delete:hover{background:#f871711a}.pres-editor-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:1100;animation:fadeIn var(--transition-fast)}.pres-editor-modal{width:95vw;height:92vh;background:var(--color-white);border-radius:var(--radius-lg);display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-xl);border:1px solid var(--color-border)}.pres-editor-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-3) var(--spacing-4);background:var(--color-surface);border-bottom:1px solid var(--color-border);flex-shrink:0;gap:var(--spacing-3)}.pres-editor-title{display:flex;align-items:center;gap:var(--spacing-2);font-weight:600;font-size:.95rem;color:var(--color-text-primary);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pres-editor-dirty{color:var(--color-warning, #f59e0b);font-size:1.1rem;line-height:1;flex-shrink:0}.pres-editor-actions{display:flex;align-items:center;gap:var(--spacing-2);flex-shrink:0}.pres-btn{display:inline-flex;align-items:center;gap:var(--spacing-1);padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-white);color:var(--color-text-primary);font-size:.85rem;font-weight:500;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast)}.pres-btn:disabled{opacity:.5;cursor:not-allowed}.pres-btn-present{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.pres-btn-present:not(:disabled):hover{background:var(--color-primary-hover, var(--color-primary));opacity:.9}.pres-btn-save:not(:disabled):hover{background:var(--color-surface-hover, var(--color-surface))}.pres-btn-close{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius-md);border:none;background:transparent;color:var(--color-text-secondary);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast)}.pres-btn-close:hover{background:var(--color-surface-hover, var(--color-surface));color:var(--color-text-primary)}.pres-editor-error-bar{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);background:var(--color-error-bg, #fef2f2);color:var(--color-error, #dc2626);font-size:.85rem;border-bottom:1px solid var(--color-error-border, #fecaca);flex-shrink:0}.pres-editor-error-bar button{margin-left:auto;background:none;border:none;cursor:pointer;color:inherit;font-size:1rem;line-height:1;padding:0 var(--spacing-1)}.pres-editor-body{display:flex;flex-direction:row;flex:1;min-height:0;overflow:hidden}.pres-editor-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-3);height:100%;width:100%;color:var(--color-text-secondary);font-size:.9rem}[data-theme=dark] .pres-editor-modal{background:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .pres-editor-header{background:var(--color-surface-elevated, var(--color-surface))}[data-theme=dark] .pres-editor-error-bar{background:#dc262626;border-color:#dc26264d}[data-theme=dark] .pres-btn{background:var(--color-surface);color:var(--color-text-primary)}[data-theme=dark] .pres-btn-close:hover{background:var(--color-surface-hover, rgba(255,255,255,.1))}.material-upload-panel{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-4)}.material-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-4)}.material-header h3{margin:0;font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-text)}.drop-zone{border:2px dashed var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-8) var(--spacing-4);text-align:center;cursor:pointer;transition:all var(--transition-fast);background-color:var(--color-white)}.drop-zone:hover{border-color:var(--color-gray-300);background-color:var(--color-surface)}.drop-zone.drag-over{border-color:var(--color-black);background-color:var(--color-surface);box-shadow:var(--shadow-sm)}.drop-zone-icon{font-size:48px;margin-bottom:var(--spacing-3);opacity:.5}.drop-zone-text{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--spacing-1)}.drop-zone-hint{font-size:var(--font-size-xs);color:var(--color-gray-500)}.upload-card-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-fast)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.upload-card{background-color:var(--color-white);border-radius:var(--radius-lg);padding:var(--spacing-6);min-width:400px;max-width:500px;width:90vw;animation:slideUp var(--transition-normal);box-shadow:var(--shadow-xl);border:1px solid var(--color-border)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.upload-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-5)}.upload-card-header h3{margin:0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text)}.upload-card-close{width:32px;height:32px;border:none;background:none;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--color-gray-500);transition:background-color var(--transition-fast)}.upload-card-close:hover{background-color:var(--color-gray-100)}.upload-card-file-preview{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-4);margin-bottom:var(--spacing-5);display:flex;align-items:center;gap:var(--spacing-3)}.upload-card-file-icon{font-size:32px;flex-shrink:0}.upload-card-file-info{flex:1;min-width:0}.upload-card-file-name{font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-card-file-size{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-top:2px}.upload-card-form-group{margin-bottom:var(--spacing-4)}.upload-card-form-group label{display:block;margin-bottom:var(--spacing-1);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-gray-700)}.upload-card-form-group label .required{color:var(--color-red);margin-left:2px}.upload-card-input{width:100%;padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-white);color:var(--color-text);font-family:var(--font-family);font-size:var(--font-size-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.upload-card-input:focus{outline:none;border-color:var(--color-black);box-shadow:0 0 0 3px #0000001a}.upload-card-input::placeholder{color:var(--color-gray-400)}.upload-card-textarea{resize:vertical;min-height:80px;line-height:var(--line-height-normal)}.upload-card-actions{display:flex;gap:var(--spacing-2);margin-top:var(--spacing-6)}.upload-card-btn{flex:1;padding:var(--spacing-2) var(--spacing-4);border:none;border-radius:var(--radius-md);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:var(--spacing-2)}.upload-card-btn-primary{background-color:var(--color-black);color:var(--color-white)}.upload-card-btn-primary:hover:not(:disabled){background-color:var(--color-gray-800)}.upload-card-btn-primary:disabled{opacity:.5;cursor:not-allowed}.upload-card-btn-secondary{background-color:var(--color-white);color:var(--color-black);border:1px solid var(--color-border)}.upload-card-btn-secondary:hover{background-color:var(--color-gray-50);border-color:var(--color-gray-300)}.upload-card-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:var(--color-white);border-radius:var(--radius-full);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.upload-card-error{background-color:var(--color-red-light);color:var(--color-red-dark);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-4);font-size:var(--font-size-sm);display:flex;align-items:center;justify-content:space-between}.upload-card-error button{background:none;border:none;cursor:pointer;font-size:18px;color:var(--color-red-dark);margin-left:var(--spacing-2)}.material-aggregate-group{display:flex;flex-direction:column;gap:var(--spacing-1)}.material-aggregate-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-500);text-transform:uppercase;letter-spacing:.04em;padding:var(--spacing-1) 0;border-bottom:1px solid var(--color-gray-200);margin-bottom:var(--spacing-1)}[data-theme=dark] .material-aggregate-label{border-color:var(--color-gray-700)}.materials-list{display:flex;flex-direction:column;gap:var(--spacing-2);margin-top:var(--spacing-4);margin-bottom:var(--spacing-4)}.material-item{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-3);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.material-item:hover{box-shadow:var(--shadow-sm)}.material-icon{font-size:24px;flex-shrink:0}.material-info{flex:1;min-width:0}.material-title{font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);color:var(--color-text);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.material-meta{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.material-description{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-top:var(--spacing-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.material-actions{display:flex;gap:var(--spacing-1);flex-shrink:0}.btn-icon{width:36px;height:36px;border:none;background:none;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color var(--transition-fast)}.btn-icon:hover{background-color:var(--color-gray-100)}.btn-icon.btn-danger:hover{background-color:var(--color-red-light);color:var(--color-red-dark)}.empty-state{text-align:center;padding:var(--spacing-12) var(--spacing-4);color:var(--color-text-secondary)}.empty-icon{font-size:32px;margin-bottom:var(--spacing-2);opacity:.5}.empty-text{font-size:var(--font-size-sm)}.error-message{display:flex;align-items:center;justify-content:space-between;background-color:var(--color-red-light);color:var(--color-red-dark);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);margin-bottom:var(--spacing-4);font-size:var(--font-size-sm)}.error-message button{background:none;border:none;cursor:pointer;font-size:18px;color:var(--color-red-dark);margin-left:var(--spacing-2)}.edit-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-fast)}.edit-modal{background-color:var(--color-white);border-radius:var(--radius-lg);padding:var(--spacing-6);min-width:400px;max-width:90vw;box-shadow:var(--shadow-xl);border:1px solid var(--color-border)}.edit-modal h3{margin:0 0 var(--spacing-4) 0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text)}.edit-modal .form-group{margin-bottom:var(--spacing-4)}.edit-modal .form-group label{display:block;margin-bottom:var(--spacing-1);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-gray-700)}.edit-modal input[type=text],.edit-modal textarea{width:100%;padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-white);color:var(--color-text);font-family:var(--font-family);font-size:var(--font-size-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.edit-modal 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var(--spacing-4);border-radius:var(--radius-md);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color var(--transition-fast),border-color var(--transition-fast)}.edit-modal .btn-secondary:hover{background-color:var(--color-gray-50);border-color:var(--color-gray-300)}.upload-form{background-color:var(--color-white);border-radius:var(--radius-lg);padding:var(--spacing-4);margin-bottom:var(--spacing-4);border:1px solid var(--color-border)}.upload-form .form-group{margin-bottom:var(--spacing-3)}.upload-form .form-group label{display:block;margin-bottom:var(--spacing-1);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.upload-form input[type=text],.upload-form input[type=file],.upload-form textarea{width:100%;padding:var(--spacing-2) var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-white);color:var(--color-text);font-family:var(--font-family);font-size:var(--font-size-sm)}.upload-form textarea{resize:vertical;min-height:60px}.form-actions{display:flex;gap:var(--spacing-2);margin-top:var(--spacing-4)}.create-presentation-btn{display:inline-flex;align-items:center;gap:var(--spacing-2);margin-top:var(--spacing-3);padding:var(--spacing-2) var(--spacing-4);border:1px dashed var(--color-border);border-radius:var(--radius-md);background:var(--color-white);color:var(--color-text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast)}.create-presentation-btn:hover{border-color:var(--color-gray-400);color:var(--color-text);background:var(--color-surface)}[data-theme=dark] .create-presentation-btn{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text-secondary)}[data-theme=dark] .create-presentation-btn:hover{background:var(--color-gray-800);border-color:var(--color-gray-500);color:var(--color-text)}[data-theme=dark] .material-upload-panel{background-color:var(--color-surface)}[data-theme=dark] .material-item{background-color:var(--color-gray-800);border-color:var(--color-border)}[data-theme=dark] .material-item:hover{background-color:var(--color-gray-700)}[data-theme=dark] .material-title{color:var(--color-text)}[data-theme=dark] .material-meta,[data-theme=dark] .material-description{color:var(--color-text-secondary)}[data-theme=dark] .material-actions .btn-icon{background:none;border:none}[data-theme=dark] .btn-icon.btn-danger:hover{background-color:#ef444426;color:var(--color-red-dark)}[data-theme=dark] .empty-state,[data-theme=dark] .empty-text{color:var(--color-text-secondary)}[data-theme=dark] .drop-zone{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .drop-zone:hover{background-color:var(--color-gray-800);border-color:var(--color-gray-500)}[data-theme=dark] .drop-zone.drag-over{background-color:var(--color-gray-800);border-color:var(--color-gray-400)}[data-theme=dark] .drop-zone-text{color:var(--color-text-secondary)}[data-theme=dark] .drop-zone-hint{color:var(--color-gray-500)}[data-theme=dark] .upload-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .upload-card-header h3{color:var(--color-text)}[data-theme=dark] .upload-card-close{color:var(--color-gray-400)}[data-theme=dark] .upload-card-close:hover{background-color:var(--color-gray-700)}[data-theme=dark] .upload-card-file-preview{background-color:var(--color-gray-800)}[data-theme=dark] .upload-card-file-name{color:var(--color-text)}[data-theme=dark] .upload-card-file-size{color:var(--color-text-secondary)}[data-theme=dark] .upload-card-form-group label{color:var(--color-gray-300)}[data-theme=dark] .upload-card-input{background-color:var(--color-gray-800);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .upload-card-input::placeholder{color:var(--color-gray-500)}[data-theme=dark] .upload-card-btn-secondary{background-color:var(--color-gray-800);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .upload-card-btn-secondary:hover{background-color:var(--color-gray-700)}[data-theme=dark] .edit-modal{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .edit-modal h3{color:var(--color-text)}[data-theme=dark] .edit-modal .form-group label{color:var(--color-gray-300)}[data-theme=dark] .edit-modal input[type=text],[data-theme=dark] .edit-modal textarea,[data-theme=dark] .edit-modal .btn-secondary{background-color:var(--color-gray-800);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .edit-modal .btn-secondary:hover{background-color:var(--color-gray-700)}[data-theme=dark] .upload-form{background-color:var(--color-surface)}[data-theme=dark] .upload-form input[type=text],[data-theme=dark] .upload-form input[type=file],[data-theme=dark] .upload-form textarea{background-color:var(--color-gray-800);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .error-message{background-color:#ef444426;color:var(--color-red-dark)}[data-theme=dark] .material-aggregate-label{border-color:var(--color-gray-700);color:var(--color-gray-400)}.step-detail{padding:var(--spacing-6);max-width:900px;margin:0 auto}.step-detail-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-6)}.step-detail-actions{display:flex;gap:var(--spacing-2);align-items:center}.save-status{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);padding:var(--spacing-1) var(--spacing-2);border-radius:var(--radius-md)}.save-status-success{background-color:var(--color-green-light);color:var(--color-green-dark)}.save-status-saving{background-color:var(--color-gray-100);color:var(--color-gray-600)}.step-detail-content{display:flex;flex-direction:column;gap:var(--spacing-8)}.step-detail-form{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-6)}.goals-section{margin-top:var(--spacing-6);padding-top:var(--spacing-6);border-top:1px solid var(--color-border)}.goals-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-1)}.goals-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.goals-description{margin-bottom:var(--spacing-4)}.goals-empty{padding:var(--spacing-4) 0}.goal-inputs{display:flex;flex-direction:column;gap:var(--spacing-4)}.goal-input-group{display:flex;gap:var(--spacing-3)}.goal-label{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-1);padding-top:var(--spacing-2)}.goal-delete-btn{opacity:0;transition:opacity .2s;font-size:18px;line-height:1;padding:0;width:20px;height:20px;color:var(--color-gray-500)}.goal-input-group:hover .goal-delete-btn{opacity:1}.goal-delete-btn:hover{color:var(--color-red)}.goal-status{font-size:var(--font-size-xs);width:18px;height:18px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full)}.goal-status-covered{background-color:var(--color-green-light);color:var(--color-green-dark)}.goal-textarea{flex:1;min-height:60px}.badge-clickable{cursor:pointer;-webkit-user-select:none;user-select:none;transition:opacity .2s}.badge-clickable:hover{opacity:.8}.goal-id-input{width:60px;text-align:center;font-weight:var(--font-weight-semibold);text-transform:uppercase}.lessons-section{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-6)}.lessons-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-4)}.lessons-title{display:flex;align-items:center;gap:var(--spacing-2);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.lessons-count{display:flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 var(--spacing-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);background-color:var(--color-gray-100);border-radius:var(--radius-full)}.lessons-header-actions{display:flex;gap:.5rem}.lessons-empty{padding:var(--spacing-8)}.lessons-list{display:flex;flex-direction:column;gap:var(--spacing-3)}.step-materials-section,.lesson-materials-section{margin-top:var(--spacing-4)}.lesson-materials-overview{margin-top:var(--spacing-6);border-top:1px solid var(--color-border);padding-top:var(--spacing-4)}.lesson-materials-overview-header{margin-bottom:var(--spacing-4)}[data-theme=dark] .step-detail-form,[data-theme=dark] .lessons-section{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .step-count-badge,[data-theme=dark] .save-status-saving{background-color:var(--color-gray-800);color:var(--color-gray-300)}.phase-card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-fast)}.phase-card:hover{border-color:var(--color-gray-300)}.phase-card-expanded{box-shadow:var(--shadow-sm)}.phase-card-header{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-3) var(--spacing-4);cursor:pointer;transition:background-color var(--transition-fast)}.phase-card-header:hover{background-color:var(--color-gray-50)}.phase-card-drag-handle{display:flex;align-items:center;justify-content:center;width:20px;color:var(--color-gray-400);cursor:grab;flex-shrink:0;transition:color var(--transition-fast)}.phase-card-drag-handle:hover{color:var(--color-gray-600)}.phase-card-drag-handle:active{cursor:grabbing}.phase-indicator{width:4px;height:32px;border-radius:var(--radius-full);flex-shrink:0}.phase-card-info{flex:1;display:flex;align-items:center;gap:var(--spacing-2);min-width:0}.phase-card-type{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-black)}.phase-card-method{font-size:var(--font-size-sm);color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.phase-card-meta{display:flex;align-items:center;gap:var(--spacing-2);flex-shrink:0}.phase-expand-btn{flex-shrink:0}.phase-card-content{padding:var(--spacing-4);padding-top:0;border-top:1px solid var(--color-border);margin-top:var(--spacing-3)}.phase-form-row{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-4);margin-bottom:var(--spacing-4)}@media (max-width: 768px){.phase-form-row{grid-template-columns:repeat(2,1fr)}}.phase-card-actions{display:flex;justify-content:flex-end;padding-top:var(--spacing-4);border-top:1px solid var(--color-border);margin-top:var(--spacing-4)}.phase-card-preview{padding:0 var(--spacing-4) var(--spacing-3);cursor:pointer}.phase-card-procedure{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:var(--spacing-2)}.phase-card-materials{display:flex;align-items:center;gap:var(--spacing-1);font-size:var(--font-size-xs);color:var(--color-gray-500)}[data-theme=dark] .phase-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .phase-card-header:hover{background-color:var(--color-gray-800)}[data-theme=dark] .phase-card-step-badge{color:var(--color-gray-300);background-color:var(--color-gray-800)}.lesson-detail{padding:var(--spacing-6);max-width:900px;margin:0 auto}.lesson-detail-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-6)}.lesson-detail-header-actions{display:flex;align-items:center;gap:var(--spacing-3)}.lesson-detail-duration{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-size:var(--font-size-sm)}.lesson-detail-content{display:flex;flex-direction:column;gap:var(--spacing-6)}.lesson-detail-form{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-6)}.lesson-form-row{display:flex;gap:var(--spacing-4);margin-bottom:var(--spacing-4)}.lesson-goals-section{padding-top:var(--spacing-4);border-top:1px solid var(--color-border)}.lesson-goals-list{display:flex;flex-direction:column;gap:var(--spacing-2)}.lesson-goal-item{display:flex;align-items:flex-start;gap:var(--spacing-3);padding:var(--spacing-3);background-color:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.lesson-goal-item:hover{background-color:var(--color-white);border-color:var(--color-gray-300)}.lesson-goal-item-active{background-color:var(--color-white);border-color:var(--color-green);box-shadow:0 0 0 1px var(--color-green)}.lesson-goal-text{flex:1;font-size:var(--font-size-sm);line-height:var(--line-height-relaxed)}.phases-section{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-6)}.phases-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-4)}.phases-title{display:flex;align-items:center;gap:var(--spacing-2);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.phases-count{display:flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 var(--spacing-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);background-color:var(--color-gray-100);border-radius:var(--radius-full)}.phases-empty{padding:var(--spacing-8)}.phases-list{display:flex;flex-direction:column;gap:var(--spacing-3)}.phases-summary{display:flex;gap:var(--spacing-6);margin-top:var(--spacing-4);padding-top:var(--spacing-4);border-top:1px solid var(--color-border)}.phases-summary-item{display:flex;gap:var(--spacing-2);font-size:var(--font-size-sm)}.lesson-links-section{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-6)}.lesson-links-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-2)}.links-empty{padding:var(--spacing-6) 0}.links-list{display:flex;flex-direction:column;gap:var(--spacing-3)}.links-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-4)}.link-item{display:flex;flex-direction:column;gap:var(--spacing-2);padding:var(--spacing-4);background-color:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.link-item:hover{border-color:var(--color-gray-300)}.link-item-fields{display:flex;gap:var(--spacing-3)}.link-item-actions{display:flex;gap:var(--spacing-2);justify-content:flex-end}.link-card{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-3);padding:var(--spacing-5);background-color:var(--color-white);border:2px solid var(--color-border);border-radius:var(--radius-xl);transition:all var(--transition-fast);position:relative}.link-card-clickable{cursor:pointer}.link-card-clickable:hover{border-color:var(--color-blue);box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.link-card-editing{cursor:default}.link-card-editing:hover{transform:none;box-shadow:none}.link-card-qr{display:flex;align-items:center;justify-content:center;width:80px;height:80px;background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--spacing-2)}.link-card-qr-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:var(--color-gray-400)}.link-card-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-1);text-align:center;flex:1;width:100%}.link-card-label{font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);color:var(--color-gray-900);word-break:break-word}.link-card-url{font-size:var(--font-size-sm);color:var(--color-gray-500);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.link-card-actions{display:flex;gap:var(--spacing-2);position:absolute;top:var(--spacing-2);right:var(--spacing-2);opacity:0;transition:opacity var(--transition-fast)}.link-card:hover .link-card-actions,.link-card-editing .link-card-actions{opacity:1}.btn-icon{padding:var(--spacing-2);width:32px;height:32px;display:flex;align-items:center;justify-content:center;background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md)}[data-theme=dark] .btn-icon{background-color:var(--color-gray-800);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .btn-icon:hover{background-color:var(--color-gray-700)}.link-card-edit,.link-card-edit-fields{display:flex;flex-direction:column;gap:var(--spacing-3);width:100%}.label-sm{font-size:var(--font-size-sm);margin-bottom:var(--spacing-1)}.input-sm{padding:var(--spacing-2) var(--spacing-3);font-size:var(--font-size-sm)}.link-card-edit-actions{display:flex;gap:var(--spacing-2);justify-content:flex-end}.homework-section{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-6)}.lesson-materials-section{margin-top:var(--spacing-4)}[data-theme=dark] .lesson-detail-header,[data-theme=dark] .lesson-detail-form{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .lesson-meta{background-color:var(--color-background);border-color:var(--color-border)}[data-theme=dark] .lesson-goal-item{background-color:var(--color-gray-800);border-color:var(--color-border)}[data-theme=dark] .lesson-goal-item:hover,[data-theme=dark] .lesson-goal-item-active{background-color:var(--color-gray-700)}[data-theme=dark] .phases-section,[data-theme=dark] .lesson-links-section{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .lesson-link-item{background-color:var(--color-background);border-color:var(--color-border)}[data-theme=dark] .homework-section{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .step-badge{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .phase-step-list{background-color:var(--color-background)}[data-theme=dark] .phase-icon-container{background-color:var(--color-gray-800)}[data-theme=dark] .link-card-title{color:var(--color-text)}[data-theme=dark] .lesson-detail-duration{background-color:var(--color-gray-800);border-color:var(--color-border)}.user-menu-container{position:relative;z-index:1000}.btn-user-menu{display:flex;align-items:center;gap:var(--spacing-2);padding:0;background:transparent;border:none;border-radius:50%;cursor:pointer;transition:transform .2s,box-shadow .2s}.btn-user-menu:hover{transform:scale(1.05);box-shadow:0 0 0 2px #22c55e66}.btn-user-menu:focus{outline:none;box-shadow:0 0 0 2px #22c55e99}.user-avatar{width:40px;height:40px;border-radius:50%;overflow:hidden;background:transparent}.user-avatar img{width:100%;height:100%;object-fit:cover}.user-icon{font-size:var(--font-size-lg)}.user-name{font-weight:var(--font-weight-medium)}.user-menu-dropdown{position:absolute;top:calc(100% + var(--spacing-2));right:0;min-width:200px;background:var(--color-gray-900);border:1px solid var(--color-gray-800);border-radius:var(--radius-md);box-shadow:0 10px 25px #0000004d;z-index:1000;overflow:hidden}.user-menu-info{padding:var(--spacing-4);border-bottom:1px solid var(--color-gray-800);background-color:var(--color-gray-800);display:flex;align-items:center;gap:var(--spacing-3)}.user-menu-avatar{width:48px;height:48px;border-radius:50%;overflow:hidden;background:var(--color-gray-700);flex-shrink:0}.user-menu-avatar img{width:100%;height:100%;object-fit:cover}.user-menu-details{flex:1;min-width:0}.user-menu-username{font-weight:var(--font-weight-semibold);color:var(--color-white);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-menu-role{font-size:var(--font-size-sm);color:var(--color-gray-400);margin-top:var(--spacing-1)}.user-menu-item{display:flex;align-items:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-3) var(--spacing-4);background:none;border:none;text-align:left;cursor:pointer;transition:background-color .2s;font-size:var(--font-size-sm);color:var(--color-gray-200)}.user-menu-item:hover{background-color:var(--color-gray-800);color:var(--color-white)}.user-menu-logout{color:var(--color-red-light);border-top:1px solid var(--color-gray-800)}.user-menu-logout:hover{background-color:#ef44441a;color:var(--color-red)}.notification-badge{position:absolute;top:-4px;right:-4px;background-color:#ef4444;color:#fff;font-size:11px;font-weight:600;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px;border:2px solid var(--color-gray-900);box-shadow:0 2px 4px #0003;pointer-events:none}.menu-badge{margin-left:auto;background-color:#ef4444;color:#fff;font-size:11px;font-weight:600;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px}.btn-user-menu{position:relative}[data-theme=dark] .user-menu{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .user-menu-header{background-color:var(--color-gray-800);border-color:var(--color-border)}[data-theme=dark] .user-menu-item{color:var(--color-text)}[data-theme=dark] .user-menu-item:hover{background-color:var(--color-gray-800)}[data-theme=dark] .user-menu-logout:hover{background-color:#ef444426;color:#f87171}[data-theme=dark] .notification-badge-label{border-color:var(--color-gray-800)}.menu-bar{height:var(--header-height);background-color:var(--color-black);color:var(--color-white);border-bottom:1px solid var(--color-gray-800);position:sticky;top:0;z-index:100}.menu-bar-content{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 var(--spacing-6);position:relative}.menu-bar-left{display:flex;align-items:center;gap:var(--spacing-2);flex-shrink:0}.menu-bar-brand{position:absolute;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:var(--spacing-2);font-weight:var(--font-weight-semibold);font-size:var(--font-size-lg);cursor:pointer;transition:opacity .2s}.menu-bar-brand:hover{opacity:.8}.brand-icon{color:var(--color-green);font-size:var(--font-size-xl)}.brand-logo{width:28px;height:28px;object-fit:contain}.brand-name{letter-spacing:-.025em}.menu-bar-spacer{flex:1}.menu-bar-right{display:flex;align-items:center;flex-shrink:0}.menu-bar-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;font-family:var(--font-family);font-size:13px;font-weight:500;line-height:1;border-radius:6px;border:1px solid transparent;cursor:pointer;transition:all .15s;white-space:nowrap;background-color:#ffffff1a;color:#fff}.menu-bar-btn:hover{background-color:#fff3}.menu-bar-btn:active{background-color:#ffffff26}.menu-bar-btn-icon{padding:6px;width:32px;height:32px;justify-content:center}.header-content{display:flex;flex-direction:column}.header-series-section{padding:var(--spacing-4) var(--spacing-6);background-color:var(--color-gray-900);border-bottom:1px solid var(--color-gray-800)}.header-series-row{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-4)}.header-owner-section{display:flex;align-items:center;gap:var(--spacing-3);padding-left:var(--spacing-3);border-left:1px solid var(--color-gray-700)}.owner-info{display:flex;align-items:center;gap:.375rem}.owner-avatar{width:20px;height:20px;border-radius:50%;object-fit:cover}.owner-icon{font-size:.875rem}.owner-name{color:var(--color-gray-300);font-weight:var(--font-weight-medium)}.separator{color:var(--color-gray-600)}.permission-badge{display:inline-flex;align-items:center;gap:.375rem;padding:.375rem .75rem;border-radius:9999px;font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);white-space:nowrap}.badge-view_only{background-color:#ef444433;color:#f87171;border:1px solid rgba(239,68,68,.3)}.badge-view_edit{background-color:#22c55e33;color:#4ade80;border:1px solid rgba(34,197,94,.3)}.badge-owner{background-color:#3b82f633;color:#60a5fa;border:1px solid rgba(59,130,246,.3)}.header-series-info{display:flex;flex-direction:column;gap:var(--spacing-2);cursor:pointer;padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);transition:background-color var(--transition-fast);flex:1;min-width:0}.header-series-info:hover{background-color:var(--color-gray-800)}.header-title{font-size:var(--font-size-base);font-weight:var(--font-weight-medium);color:var(--color-white)}.header-meta{display:flex;gap:var(--spacing-2)}.header-meta .badge{background-color:var(--color-gray-800);color:var(--color-gray-300)}.header-edit-form{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3)}.header-input{background-color:var(--color-gray-800);border-color:var(--color-gray-700);color:var(--color-white)}.header-input:focus{border-color:var(--color-green);box-shadow:0 0 0 3px #22c55e33}.header-input::placeholder{color:var(--color-gray-500)}.header-input-sm{width:120px}.share-modal{max-width:500px}.share-modal-header{position:relative;margin-bottom:1.5rem}.share-modal-header h2{margin:0;font-size:1.25rem;font-weight:600}.share-modal-subtitle{margin:.5rem 0 0;color:var(--color-text-secondary);font-size:.875rem}.modal-close{position:absolute;top:0;right:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:.375rem;cursor:pointer;font-size:1.25rem;color:var(--color-text-secondary);transition:all .2s}.modal-close:hover{background:var(--color-gray-100);color:var(--color-text)}.share-form{margin-bottom:1.5rem}.share-error{padding:.75rem;background:var(--color-error-light);color:var(--color-error);border-radius:.375rem;margin-bottom:1rem;font-size:.875rem}.share-list{border-top:1px solid var(--color-border);padding-top:1rem}.share-list h3{margin:0 0 .75rem;font-size:.875rem;font-weight:500;color:var(--color-text-secondary)}.share-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:var(--color-gray-50);border-radius:.375rem;margin-bottom:.5rem}.share-user-info{display:flex;align-items:center;gap:.5rem;flex:1}.share-avatar,.share-avatar-placeholder{width:32px;height:32px;border-radius:50%;object-fit:cover}.share-avatar-placeholder{display:flex;align-items:center;justify-content:center;background:var(--color-gray-200);font-size:1rem}.share-permission{font-size:.875rem;color:var(--color-text-secondary)}.share-remove-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:.25rem;cursor:pointer;font-size:1.125rem;color:var(--color-text-secondary);transition:all .2s}.share-remove-btn:hover{background:var(--color-error-light);color:var(--color-error)}[data-theme=dark] .share-item{background-color:var(--color-background);border:1px solid var(--color-border)}[data-theme=dark] .share-avatar-placeholder{background-color:var(--color-gray-700)}[data-theme=dark] .modal-close:hover{background-color:var(--color-gray-800)}.series-card-menu-container{position:relative}.series-card-menu-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;color:var(--color-text-secondary);transition:all .15s ease;flex-shrink:0}.series-card-menu-btn:hover{background:var(--color-gray-100);color:var(--color-text)}.series-card-menu-btn:focus{outline:2px solid var(--color-primary);outline-offset:2px}.series-card-menu-dropdown{position:fixed;min-width:200px;background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:9999;overflow:hidden;animation:dropdownFadeIn .15s ease}@keyframes dropdownFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.series-card-menu-item{display:flex;align-items:center;gap:var(--spacing-3);width:100%;padding:var(--spacing-3) var(--spacing-4);background:none;border:none;text-align:left;cursor:pointer;font-size:var(--font-size-sm);font-weight:var(--font-weight-normal);color:var(--color-text);transition:background-color .15s ease;font-family:inherit}.series-card-menu-item:hover{background:var(--color-gray-50)}.series-card-menu-item:focus{outline:none;background:var(--color-gray-50)}.series-card-menu-item:active{background:var(--color-gray-100)}.series-card-menu-item-danger{color:var(--color-error)}.series-card-menu-item-danger:hover{background:#fee2e2}.series-card-menu-item-danger:focus{background:#fee2e2}.series-card-menu-item-active{color:#92400e}[data-theme=dark] .series-card-menu{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .series-card-menu-dropdown{background-color:var(--color-gray-800);border-color:var(--color-gray-700)}[data-theme=dark] .series-card-menu-item{color:var(--color-text)}[data-theme=dark] .series-card-menu-item:hover,[data-theme=dark] .series-card-menu-item:focus{background-color:var(--color-gray-700)}[data-theme=dark] .series-card-menu-item-danger:hover,[data-theme=dark] .series-card-menu-item-danger:focus{background-color:#ef444426;color:#f87171}[data-theme=dark] .series-card-menu-item-active{color:#fcd34d}[data-theme=dark] .series-card-menu-item-active:hover{background-color:#f59e0b26!important}.delete-confirm-modal{max-width:450px;text-align:center}.delete-confirm-icon{font-size:3rem;margin-bottom:1rem}.delete-confirm-modal h2{margin:0 0 1rem;font-size:1.5rem;font-weight:600;color:var(--color-text)}.delete-confirm-warnings{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1rem}.delete-confirm-warning{display:flex;align-items:flex-start;gap:.75rem;padding:.75rem;background:var(--color-gray-50);border-radius:var(--radius-md);text-align:left}.delete-confirm-warning.warning-icon{font-size:1.25rem;flex-shrink:0}.delete-confirm-warning p{margin:0;font-size:.875rem;color:var(--color-text);line-height:1.4}.delete-confirm-warning strong{color:var(--color-error)}.delete-confirm-series-info{margin:1rem 0;font-size:.9rem;color:var(--color-text-secondary)}.delete-confirm-series-info strong{color:var(--color-text)}.modal-actions{display:flex;gap:var(--spacing-3);justify-content:center;margin-top:1.5rem}.series-btn-danger{background:var(--color-error);color:#fff}.series-btn-danger:hover{background:#dc2626}.series-btn-danger:active{background:#b91c1c}.series-btn-download-delete{background:var(--color-primary);color:#fff}.series-btn-download-delete:hover{opacity:.9}.series-btn-download-delete:active{opacity:.8}[data-theme=dark] .modal,[data-theme=dark] .delete-confirm-modal{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .modal-title,[data-theme=dark] .delete-confirm-title{color:var(--color-text)}.external-share-modal{max-width:500px}.entity-type-selector{display:flex;gap:.5rem}.type-btn{flex:1;padding:.5rem 1rem;border:1px solid #ddd;background:#fff;border-radius:6px;cursor:pointer;font-size:.875rem;transition:all .15s}[data-theme=dark] .type-btn{background:#1a1a2e;border-color:#3a3a5a;color:#e0e0e0}.type-btn.active{background:#e3f2fd;border-color:#1976d2;color:#1976d2;font-weight:600}[data-theme=dark] .type-btn.active{background:#1a3a5c;border-color:#42a5f5;color:#90caf9}.type-btn:hover:not(.active){background:#f5f5f5}[data-theme=dark] .type-btn:hover:not(.active){background:#2a2a4a}.password-input-row{display:flex;gap:.5rem}.password-input-row input{flex:1}.btn-generate{padding:.5rem .75rem;background:#f5f5f5;border:1px solid #ddd;border-radius:6px;cursor:pointer;font-size:.8125rem;white-space:nowrap}[data-theme=dark] .btn-generate{background:#2a2a4a;border-color:#3a3a5a;color:#e0e0e0}.btn-generate:hover{background:#eee}[data-theme=dark] .btn-generate:hover{background:#3a3a5a}.form-error{background:#ffebee;color:#c62828;padding:.5rem .75rem;border-radius:6px;font-size:.875rem;margin-bottom:.5rem}.share-link-success{text-align:center;padding:1rem 0}.share-link-success h3{margin:0 0 .5rem;color:#2e7d32}.share-link-display{display:flex;gap:.5rem;margin:1rem 0}.share-link-display input{flex:1;padding:.5rem .75rem;border:1px solid #ddd;border-radius:6px;font-size:.8125rem;background:#f9f9f9}[data-theme=dark] .share-link-display input{background:#1a1a2e;border-color:#3a3a5a;color:#e0e0e0}.btn-copy{padding:.5rem 1rem;background:#1976d2;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.8125rem;white-space:nowrap}.prefilled-entity{padding:.5rem .75rem;background:#f5f5f5;border:1px solid #e0e0e0;border-radius:6px;font-size:.9375rem;color:#333}[data-theme=dark] .prefilled-entity{background:#1a1a2e;border-color:#3a3a5a;color:#e0e0e0}.series-overview-dashboard{display:flex;min-height:calc(100vh - var(--header-height));background:var(--color-gray-50);padding:0;max-width:100%;margin:0}.dashboard-sidebar{width:280px;flex-shrink:0;background:var(--color-white);border-right:1px solid var(--color-border);padding:var(--spacing-6);display:flex;flex-direction:column;gap:var(--spacing-6);position:sticky;top:var(--header-height);height:calc(100vh - var(--header-height));overflow-y:auto}.panel-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin:0 0 var(--spacing-4) 0;color:var(--color-text)}.dashboard-stats-panel{padding-bottom:var(--spacing-6);border-bottom:1px solid var(--color-border)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-3);margin-bottom:var(--spacing-4)}.stat-card-mini{background:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-4);text-align:center;transition:all var(--transition-normal)}.stat-card-mini:hover{border-color:var(--color-primary);background:var(--color-white)}.stat-card-value{display:block;font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-primary);line-height:var(--line-height-tight)}.stat-card-label{display:block;font-size:var(--font-size-xs);color:var(--color-text-secondary);text-transform:uppercase;margin-top:var(--spacing-1)}.stats-meta{display:flex;flex-direction:column;gap:var(--spacing-2)}.meta-item{display:flex;justify-content:space-between;font-size:var(--font-size-sm)}.meta-label{color:var(--color-text-secondary)}.meta-value{font-weight:var(--font-weight-medium);color:var(--color-text)}.dashboard-filters-panel{padding-bottom:var(--spacing-6);border-bottom:1px solid var(--color-border)}.filter-group{display:flex;flex-direction:column;gap:var(--spacing-2);margin-bottom:var(--spacing-4)}.filter-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text)}.filter-input,.filter-select{padding:var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-base);background:var(--color-white);color:var(--color-text);transition:border-color var(--transition-fast)}.filter-input:focus,.filter-select:focus{outline:none;border-color:var(--color-primary)}.filter-input::placeholder{color:var(--color-text-secondary)}.btn-clear-filters{width:100%;display:inline-flex;align-items:center;justify-content:center;padding:6px 12px;font-family:var(--font-family);font-size:13px;font-weight:500;line-height:1;border-radius:6px;border:1px solid transparent;cursor:pointer;transition:all 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select{padding:var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-base);background:var(--color-bg);color:var(--color-text)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--color-primary)}.modal-actions{display:flex;gap:var(--spacing-3);justify-content:flex-end;margin-top:var(--spacing-2)}.modal-actions button{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:6px 12px;font-family:var(--font-family);font-size:13px;font-weight:500;line-height:1;border-radius:6px;border:1px solid transparent;cursor:pointer;transition:all .15s;white-space:nowrap;background-color:#0000000d;color:var(--color-text)}.modal-actions button:hover{background-color:#0000001a}.modal-actions button:active{background-color:#00000014}.modal-actions button:disabled{opacity:.5;cursor:not-allowed}.modal-actions button:disabled:hover{background-color:#0000000d}@media (max-width: 1024px){.series-overview-dashboard{flex-direction:column}.dashboard-sidebar{width:100%;height:auto;position:static;border-right:none;border-bottom:1px solid var(--color-border);padding:var(--spacing-4) var(--spacing-6)}.dashboard-stats-panel,.dashboard-filters-panel{padding-bottom:var(--spacing-4);border-bottom:none}.stats-grid{grid-template-columns:repeat(4,1fr)}.dashboard-main{padding:var(--spacing-6)}.filter-group{flex-direction:row;align-items:center}.filter-group .filter-label{min-width:80px}.filter-input,.filter-select{flex:1}.dashboard-filters-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-4)}.dashboard-filters-panel>.panel-title{grid-column:1 / -1}}@media (max-width: 768px){.dashboard-main{padding:var(--spacing-4)}.stats-grid{grid-template-columns:repeat(2,1fr)}.dashboard-filters-panel{display:flex;flex-direction:column}.filter-group{flex-direction:column;align-items:stretch}.subject-section-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-3)}.series-card-compact{min-width:240px;max-width:100%}.series-horizontal-track{flex-direction:column}.series-card-compact{min-width:100%;max-width:100%}}@media (min-width: 1920px){.dashboard-sidebar{width:320px;padding:var(--spacing-8)}.dashboard-main{padding:var(--spacing-10)}.series-card-compact{min-width:300px;max-width:360px}.stats-grid{gap:var(--spacing-4)}}.series-checkbox{width:18px;height:18px;margin:0;cursor:pointer;flex-shrink:0}.import-modal-content{max-width:800px!important;width:90vw!important}.ai-progress-container{margin-top:var(--spacing-4)}.ai-progress-bar{width:100%;height:8px;background:var(--color-gray-200);border-radius:var(--radius-full);overflow:hidden}.ai-progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),#a78bfa);border-radius:var(--radius-full);transition:width .3s ease}.ai-progress-text{display:flex;justify-content:space-between;align-items:center;margin-top:var(--spacing-2);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.import-file-select{display:flex;flex-direction:column;gap:var(--spacing-4);align-items:center}.import-file-select 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solid var(--color-warning);border-radius:var(--radius-md);background:var(--color-white);color:var(--color-text);font-size:var(--font-size-sm);cursor:pointer}.conflict-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.import-preview-info{display:flex;flex-direction:column;gap:var(--spacing-1);flex:1}.import-preview-info strong{font-size:var(--font-size-base);color:var(--color-text)}.import-preview-info span{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.conflict-badge{background:var(--color-warning);color:var(--color-white);padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);text-transform:uppercase}.admin-view-toggle-group{margin-top:var(--spacing-4, 1rem);padding-top:var(--spacing-4, 1rem);border-top:1px solid var(--color-border, #e5e7eb)}.admin-view-toggle{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-3, .75rem);cursor:pointer;padding:var(--spacing-3, .75rem) var(--spacing-3, .75rem);border-radius:var(--radius-md, 6px);transition:all .15s ease;width:100%;background-color:transparent;border:1px solid transparent}.admin-view-toggle:hover{background-color:var(--color-gray-50, #f9fafb);border-color:var(--color-border, #e5e7eb)}.admin-view-toggle:active{transform:scale(.98)}.admin-view-toggle:focus{outline:2px solid var(--color-primary, #7c3aed);outline-offset:2px}.admin-view-toggle:focus-visible{outline:2px solid var(--color-primary, #7c3aed);outline-offset:2px}.admin-view-toggle-content{display:flex;flex-direction:column;align-items:flex-start;gap:var(--spacing-1, .25rem);flex:1;min-width:0}.switch{position:relative;display:inline-block;width:48px;height:26px;flex-shrink:0}.switch input{opacity:0;width:0;height:0;position:absolute}.switch-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--color-gray-300, #cbd5e1);transition:all .2s cubic-bezier(.4,0,.2,1);border-radius:26px}.switch-slider:before{position:absolute;content:"";height:20px;width:20px;left:3px;bottom:3px;background-color:var(--color-white, #ffffff);transition:all .2s cubic-bezier(.4,0,.2,1);border-radius:50%;box-shadow:0 2px 4px #00000026,0 0 0 1px #0000000d}.switch:hover .switch-slider{background-color:var(--color-gray-400, #94a3b8)}.switch input:checked+.switch-slider{background-color:var(--color-primary, #7c3aed)}.switch input:checked+.switch-slider:before{transform:translate(22px);box-shadow:0 2px 4px #0003,0 0 0 1px #7c3aed1a}.switch input:focus-visible+.switch-slider{box-shadow:0 0 0 3px #7c3aed33,0 0 0 1px var(--color-primary, #7c3aed)}.switch input:disabled+.switch-slider{opacity:.5;cursor:not-allowed}.toggle-label{font-size:var(--font-size-sm, .875rem);font-weight:var(--font-weight-medium, 500);-webkit-user-select:none;user-select:none;color:var(--color-text, #374151);transition:color .15s ease;line-height:1.4;display:flex;align-items:center;gap:var(--spacing-2, .5rem)}.toggle-label.active{color:var(--color-primary, #7c3aed);font-weight:var(--font-weight-semibold, 600)}.admin-mode-badge{display:inline-flex;align-items:center;gap:var(--spacing-1, .25rem);padding:.25rem .625rem;font-size:var(--font-size-xs, .75rem);font-weight:var(--font-weight-semibold, 600);color:var(--color-primary, #7c3aed);background-color:var(--color-primary-light, #f3e8ff);border-radius:var(--radius-sm, 4px);border:1px solid rgba(124,58,237,.1);transition:all .15s ease}.admin-view-toggle:hover .admin-mode-badge{background-color:var(--color-primary-lighter, #e9d5ff);border-color:#7c3aed33}.admin-view-sub-options{display:flex;flex-direction:column;gap:.5rem;margin-top:.75rem;padding-left:.75rem;border-left:2px solid var(--color-border, #e5e7eb)}.admin-view-only-toggle{margin-top:.25rem}.admin-view-only-badge{color:#059669;background-color:#ecfdf5;border-color:#0596691a}@media (max-width: 768px){.admin-view-toggle{padding:var(--spacing-2, .5rem) var(--spacing-3, .75rem);gap:var(--spacing-2, .5rem)}.switch{width:44px;height:24px}.switch-slider:before{height:18px;width:18px;left:3px;bottom:3px}.switch input:checked+.switch-slider:before{transform:translate(20px)}.toggle-label{font-size:var(--font-size-xs, .8125rem)}.admin-mode-badge{font-size:.6875rem;padding:.1875rem .5rem}}@media (max-width: 480px){.admin-view-toggle-group{margin-top:var(--spacing-3, .75rem);padding-top:var(--spacing-3, .75rem)}.admin-view-toggle-content{gap:var(--spacing-0_5, .125rem)}.toggle-label{font-size:.75rem}.admin-mode-badge{display:none}}@media (prefers-contrast: high){.switch-slider{box-shadow:inset 0 0 0 2px var(--color-text, #374151)}.switch input:checked+.switch-slider{box-shadow:inset 0 0 0 2px var(--color-primary, #7c3aed)}.admin-view-toggle:hover{border-color:var(--color-text, #374151)}}@media (prefers-reduced-motion: reduce){.admin-view-toggle,.switch-slider,.switch-slider:before,.toggle-label,.admin-mode-badge{transition:none}}.series-title-container{flex:1;display:flex;flex-direction:column;gap:.25rem;min-width:0}.series-owner-badge{display:inline-flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:500;color:#374151;background-color:#f3f4f6;padding:.25rem .625rem;border-radius:.5rem;border:1px solid #d1d5db;max-width:fit-content}.series-owner-badge:hover{background-color:#e5e7eb;border-color:#9ca3af}.series-schooltype-badge{display:inline-flex;align-items:center;font-size:.75rem;color:#16a34a;background-color:#f0fdf4;padding:.125rem .5rem;border-radius:.25rem;border:1px solid #bbf7d0;font-weight:500;white-space:nowrap}.owner-profile-pic{width:24px;height:24px;border-radius:50%;object-fit:cover;flex-shrink:0;border:2px solid #e5e7eb}.owner-profile-icon{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;font-size:.875rem;background-color:#f3f4f6;border-radius:50%;border:2px solid #e5e7eb}.series-card-compact-header{display:flex;align-items:flex-start;gap:.5rem;margin-bottom:.5rem}.series-card-compact-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.alert{padding:.75rem 1rem;border-radius:.375rem;margin-bottom:1rem}.import-ai-area{display:flex;flex-direction:column;gap:var(--spacing-4)}.import-ai-textarea{width:100%;padding:var(--spacing-4);border:2px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-base);resize:vertical;min-height:100px;font-family:inherit}.import-ai-textarea:focus{outline:none;border-color:var(--color-primary)}.import-ai-textarea::placeholder{color:var(--color-text-secondary)}.form-row{display:flex;gap:var(--spacing-3)}.form-row .form-group{flex:1}[data-theme=dark] .btn-clear-filters{background-color:#ffffff0d;color:var(--color-text)}[data-theme=dark] .btn-clear-filters:hover{background-color:#ffffff1a}[data-theme=dark] .series-btn{background-color:#ffffff0d;color:var(--color-text)}[data-theme=dark] .series-btn:hover{background-color:#ffffff1a}[data-theme=dark] .series-card,[data-theme=dark] .series-card-inner{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .series-card:hover .series-card-inner{border-color:var(--color-gray-600)}[data-theme=dark] .series-input{background-color:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .series-input:focus{border-color:var(--color-gray-500);box-shadow:0 0 0 3px #ffffff1a}[data-theme=dark] .admin-view-only-badge{background-color:#05966926;color:#34d399}[data-theme=dark] .series-owner-badge{background-color:var(--color-gray-800);color:var(--color-gray-300);border-color:var(--color-border)}[data-theme=dark] 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#f59e0b;border-radius:var(--radius-xl);padding:var(--spacing-6);margin-bottom:var(--spacing-6)}.active-series-header{display:flex;align-items:center;gap:var(--spacing-3);margin-bottom:var(--spacing-6);padding-bottom:var(--spacing-4);border-bottom:2px solid #f59e0b}.active-series-icon{display:flex;align-items:center;color:#d97706;flex-shrink:0}.active-series-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-semibold);margin:0;color:#92400e;flex:1}.series-card-active{border-color:#fbbf24;background:#fffef7}.series-card-active:hover{border-color:#f59e0b;box-shadow:0 4px 20px #f59e0b40}.series-subject-grade-badge{display:inline-block;font-size:var(--font-size-xs);color:#92400e;background:#fef3c7;border:1px solid #fcd34d;border-radius:var(--radius-full);padding:2px var(--spacing-2);margin-top:var(--spacing-1)}[data-theme=dark] .active-series-section{background:linear-gradient(135deg,#1c1a0e,#2a2008);border-color:#b45309}[data-theme=dark] .active-series-icon{color:#fcd34d}[data-theme=dark] .active-series-header{border-bottom-color:#b45309}[data-theme=dark] .active-series-title{color:#fcd34d}[data-theme=dark] .series-card-active{border-color:#b45309;background:#1f1b0a}[data-theme=dark] .series-card-active:hover{border-color:#f59e0b;box-shadow:0 4px 20px #f59e0b33}[data-theme=dark] .series-subject-grade-badge{color:#fcd34d;background:#2a2008;border-color:#78350f}.series-card-menu-item-active{color:#92400e;background:#fffbeb}.series-card-menu-item-active:hover{background:#fef3c7!important}[data-theme=dark] .series-card-menu-item-active{color:#fcd34d;background:#1c1a0e}[data-theme=dark] .series-card-menu-item-active:hover{background:#2a2008!important}.vocabulary-rules{display:flex;flex-direction:column;gap:2rem;max-width:800px;width:100%}.vr-section{background:var(--color-surface);border-radius:var(--border-radius);padding:1.5rem}.vr-header{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.5rem}.vr-title{font-size:1.25rem;font-weight:600;color:var(--color-text);margin:0}.vr-count{background:var(--color-surface-hover);color:var(--color-text-secondary);padding:.125rem .5rem;border-radius:9999px;font-size:.75rem;font-weight:500}.vr-description{color:var(--color-text-secondary);font-size:.875rem;margin-bottom:1rem}.vr-add-form{display:flex;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap}.vr-add-form .input{flex:1;min-width:150px}.vr-empty{padding:2rem 1rem;text-align:center;color:var(--color-text-secondary)}.vr-list{display:flex;flex-direction:column;gap:.5rem}.vr-item{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.75rem;background:var(--color-background);border:1px solid var(--color-border);border-radius:var(--border-radius);cursor:grab;transition:background-color .15s,border-color .15s}.vr-item:hover{background:var(--color-surface-hover);border-color:var(--color-border-hover)}.vr-item:active{cursor:grabbing}.vr-item-done{opacity:.6}.vr-item-content{display:flex;align-items:flex-start;gap:.75rem;flex:1}.vr-checkbox{flex-shrink:0;width:1.25rem;height:1.25rem;border:2px solid var(--color-border);border-radius:4px;background:var(--color-surface);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.75rem;color:#fff;transition:background-color .15s,border-color .15s}.vr-checkbox:hover{border-color:var(--color-primary)}.vr-checkbox-checked{background:var(--color-primary);border-color:var(--color-primary)}.vr-item-text{display:flex;flex-direction:column;gap:.25rem;flex:1}.vr-term{font-weight:500;color:var(--color-text)}.vr-term-done{text-decoration:line-through;color:var(--color-text-secondary)}.vr-definition{font-size:.875rem;color:var(--color-text-secondary)}.vr-rule-text{font-weight:400;color:var(--color-text)}.vr-rule-text-done{text-decoration:line-through;color:var(--color-text-secondary)}.vr-delete-btn{flex-shrink:0;width:1.5rem;height:1.5rem;padding:0;font-size:1.25rem;line-height:1;opacity:0;transition:opacity .15s}.vr-item:hover .vr-delete-btn{opacity:1}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--spacing-4);background:linear-gradient(135deg,#e8f5e9,#e3f2fd)}.login-container{width:100%;max-width:400px;background:#fff;border-radius:12px;box-shadow:0 10px 25px #0000001a;padding:2rem}.login-header{text-align:center;margin-bottom:2rem}.brand-icon{display:flex;align-items:center;justify-content:center;margin-bottom:.5rem}.brand-icon img{width:60px;height:60px;object-fit:contain}.login-title{font-size:1.75rem;font-weight:600;color:#212121;margin-bottom:.25rem;margin-top:0}.login-subtitle{color:#757575;font-size:.875rem;margin:0}.login-form{display:flex;flex-direction:column;gap:1rem}.form-group label{font-weight:500;font-size:.875rem;color:#424242}.input{padding:.75rem 1rem;border:1px solid #e0e0e0;border-radius:6px;font-size:1rem;transition:border-color .2s,box-shadow .2s}.input:focus{outline:none;border-color:#43a047;box-shadow:0 0 0 3px #43a0471a}.input:disabled{background-color:#f5f5f5;cursor:not-allowed}.btn{padding:.75rem 1.5rem;border:none;border-radius:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .2s,opacity .2s}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:#43a047;color:#fff}.btn-primary:hover:not(:disabled){background-color:#388e3c}.btn-secondary{background-color:transparent;color:#43a047;border:1px solid #43a047}.btn-secondary:hover:not(:disabled){background-color:#43a0471a}.access-info{margin-top:1rem;padding-top:1rem;border-top:1px solid #e0e0e0;animation:fadeIn .5s ease-in}.access-info-text{font-size:.875rem;color:#757575;margin:0 0 .75rem;text-align:center}.access-form{display:flex;flex-direction:column;gap:.5rem}.access-input-group{display:flex;gap:.5rem}.access-input-group .input{flex:1}.access-input-group .btn{white-space:nowrap}.access-error{color:#c62828;font-size:.75rem;margin:0}.access-success{display:flex;align-items:center;justify-content:center;gap:.5rem;background-color:#e8f5e9;border:1px solid #a5d6a7;border-radius:6px;padding:.75rem 1rem;color:#2e7d32;font-size:.875rem;font-weight:500}.access-success-icon{display:flex;align-items:center;justify-content:center;width:20px;height:20px;background-color:#4caf50;color:#fff;border-radius:50%;font-size:.75rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.btn-block{width:100%}.alert{padding:.75rem 1rem;border-radius:6px;font-size:.875rem}.login-footer{margin-top:1.5rem;text-align:center}.text-secondary{color:#757575}.text-sm{font-size:.875rem}[data-theme=dark] .login-container{background:var(--color-background)}[data-theme=dark] .login-box{background-color:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-xl)}[data-theme=dark] .login-title{color:var(--color-text)}[data-theme=dark] .login-subtitle{color:var(--color-text-secondary)}[data-theme=dark] .login-label{color:var(--color-gray-300)}[data-theme=dark] .login-container .input{background-color:var(--color-background);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .login-container .input:focus{border-color:var(--color-green);box-shadow:0 0 0 3px #22c55e26}[data-theme=dark] .login-container .input:disabled{background-color:var(--color-gray-800)}[data-theme=dark] .login-container .btn-primary{background-color:var(--color-green);border-color:var(--color-green);color:var(--color-white)}[data-theme=dark] .login-container .btn-primary:hover{background-color:var(--color-green-dark)}[data-theme=dark] .login-container .alert-error{background-color:#ef444426;border-color:#ef44444d;color:#f87171}[data-theme=dark] .login-container .text-secondary{color:var(--color-text-secondary)}[data-theme=dark] .login-container .btn-secondary{background-color:transparent;color:var(--color-green);border-color:var(--color-green)}[data-theme=dark] .login-container .btn-secondary:hover{background-color:#22c55e26}[data-theme=dark] .access-info{border-top-color:var(--color-border)}[data-theme=dark] .access-info-text{color:var(--color-text-secondary)}[data-theme=dark] .access-error{color:#f87171}[data-theme=dark] .access-success{background-color:#22c55e26;border-color:#22c55e4d;color:#4ade80}[data-theme=dark] .access-success-icon{background-color:#22c55e}.ext-page{min-height:100vh;background-color:var(--color-gray-50);display:flex;flex-direction:column}.ext-header{height:var(--header-height);background-color:var(--color-black);color:var(--color-white);border-bottom:1px solid var(--color-gray-800);flex-shrink:0}.ext-header-content{height:100%;display:flex;align-items:center;justify-content:center;padding:0 var(--spacing-6);position:relative}.ext-header-brand{display:flex;align-items:center;gap:var(--spacing-2);font-weight:var(--font-weight-semibold);font-size:var(--font-size-lg)}.ext-header-logo{width:28px;height:28px;object-fit:contain}.ext-header-name{letter-spacing:-.025em}.ext-header-label{position:absolute;right:var(--spacing-6);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-400);background:var(--color-gray-800);padding:var(--spacing-1) var(--spacing-3);border-radius:var(--radius-full)}.ext-center-wrapper{flex:1;display:flex;align-items:center;justify-content:center;padding:var(--spacing-4)}.ext-card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:var(--spacing-8);text-align:center}.ext-card-narrow{width:100%;max-width:400px}.ext-card-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto var(--spacing-4);background-color:var(--color-gray-100);border-radius:var(--radius-full);color:var(--color-gray-600)}.ext-card-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0 0 var(--spacing-2)}.ext-card-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0 0 var(--spacing-6);line-height:var(--line-height-relaxed)}.ext-expired-icon{font-size:48px;margin-bottom:var(--spacing-4);opacity:.5}.ext-loading-spinner{width:32px;height:32px;margin:0 auto var(--spacing-4);border:3px solid var(--color-gray-200);border-top-color:var(--color-black);border-radius:50%;animation:ext-spin .6s linear infinite}@keyframes ext-spin{to{transform:rotate(360deg)}}.ext-form{text-align:left}.ext-form-group{margin-bottom:var(--spacing-4)}.ext-label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-gray-700);margin-bottom:var(--spacing-1)}.ext-input{width:100%;padding:var(--spacing-3) var(--spacing-3);font-family:var(--font-family);font-size:var(--font-size-sm);color:var(--color-text);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);box-sizing:border-box}.ext-input:focus{outline:none;border-color:var(--color-black);box-shadow:0 0 0 3px #00000014}.ext-input::placeholder{color:var(--color-gray-400)}.ext-error{background-color:#ef444414;border:1px solid var(--color-red-light);color:var(--color-red-dark);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);font-size:var(--font-size-sm);margin-bottom:var(--spacing-4)}.ext-btn-primary{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:var(--spacing-3) var(--spacing-4);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-white);background-color:var(--color-black);border:1px solid var(--color-black);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.ext-btn-primary:hover:not(:disabled){background-color:var(--color-gray-800)}.ext-btn-primary:disabled{opacity:.5;cursor:not-allowed}.ext-body{flex:1;max-width:900px;width:100%;margin:0 auto;padding:var(--spacing-6) var(--spacing-4) var(--spacing-12);display:flex;flex-direction:column;gap:var(--spacing-5)}.ext-content-card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);padding:var(--spacing-6)}.ext-content-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin:0 0 var(--spacing-3)}.ext-content-description{color:var(--color-text-secondary);font-size:var(--font-size-sm);margin:0 0 var(--spacing-4);line-height:var(--line-height-relaxed)}.ext-meta-row{display:flex;gap:var(--spacing-2);flex-wrap:wrap;margin-bottom:var(--spacing-2)}.ext-meta-badge{display:inline-flex;align-items:center;padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-700);background-color:var(--color-gray-100);border-radius:var(--radius-full)}.ext-image-preview{margin:var(--spacing-4) 0}.ext-image-preview img{max-width:100%;border-radius:var(--radius-lg);border:1px solid var(--color-border)}.ext-hero{background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460);color:#fff;padding:var(--spacing-10, 2.5rem) var(--spacing-4) var(--spacing-8)}.ext-hero-inner{max-width:900px;margin:0 auto;text-align:center}.ext-hero-title{font-size:clamp(1.5rem,4vw,2.25rem);font-weight:var(--font-weight-bold);margin:0 0 var(--spacing-4);letter-spacing:-.02em;line-height:1.2}.ext-hero-meta{display:flex;align-items:center;justify-content:center;gap:var(--spacing-2);flex-wrap:wrap;margin-bottom:var(--spacing-6)}.ext-hero-badge{display:inline-flex;align-items:center;padding:var(--spacing-1) var(--spacing-3);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:#ffffffe6;background:#ffffff26;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-full);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.ext-hero-stats{display:flex;align-items:center;justify-content:center;gap:var(--spacing-6)}.ext-hero-stat{display:flex;flex-direction:column;align-items:center;gap:2px}.ext-hero-stat-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold)}.ext-hero-stat-label{font-size:var(--font-size-xs);color:#ffffffa6;text-transform:uppercase;letter-spacing:.06em}.ext-hero-stat-divider{width:1px;height:36px;background:#fff3}.ext-section-card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:0 1px 3px #0000000a,0 1px 2px #0000000f;padding:var(--spacing-6)}.ext-section-title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0 0 var(--spacing-4);display:flex;align-items:center;gap:var(--spacing-2)}.ext-section-title svg{color:var(--color-gray-400);flex-shrink:0}.ext-count{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);background:var(--color-gray-100);padding:2px var(--spacing-2);border-radius:var(--radius-full);margin-left:auto}.ext-vocab-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--spacing-3)}.ext-vocab-card{display:flex;flex-direction:column;gap:var(--spacing-1);padding:var(--spacing-3) var(--spacing-4);background:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.ext-vocab-card:hover{border-color:var(--color-gray-300);box-shadow:0 2px 8px #0000000a}.ext-vocab-term{font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm);color:var(--color-text)}.ext-vocab-def{font-size:var(--font-size-xs);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.ext-rules-list{display:flex;flex-direction:column;gap:var(--spacing-2)}.ext-rule-item{display:flex;align-items:baseline;gap:var(--spacing-3);font-size:var(--font-size-sm);color:var(--color-text);line-height:var(--line-height-relaxed)}.ext-rule-bullet{width:6px;height:6px;border-radius:50%;background:var(--color-gray-400);flex-shrink:0;margin-top:7px}.ext-step-card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:0 1px 3px #0000000a,0 1px 2px #0000000f;overflow:hidden}.ext-step-header{display:flex;align-items:center;gap:var(--spacing-4);width:100%;padding:var(--spacing-5) var(--spacing-6);background:none;border:none;cursor:pointer;text-align:left;color:inherit;font:inherit;transition:background-color var(--transition-fast)}.ext-step-header:hover{background-color:var(--color-gray-50)}.ext-step-number{width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);color:var(--color-white);background:linear-gradient(135deg,#1a1a2e,#0f3460);border-radius:var(--radius-lg);flex-shrink:0}.ext-step-header-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.ext-step-title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-text)}.ext-step-subtitle{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.ext-step-chevron{flex-shrink:0;color:var(--color-gray-400);transition:transform .25s ease}.ext-step-chevron-open{transform:rotate(180deg)}.ext-step-content{display:none;padding:0 var(--spacing-6) var(--spacing-6)}.ext-step-content-open{display:block;animation:ext-slideDown .2s ease-out}@keyframes ext-slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.ext-hint{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-style:italic;margin:0 0 var(--spacing-4);line-height:var(--line-height-relaxed);padding:var(--spacing-3) var(--spacing-4);background:var(--color-gray-50);border-radius:var(--radius-md);border-left:3px solid var(--color-gray-300)}.ext-goals{margin-bottom:var(--spacing-5)}.ext-goals-title{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;margin:0 0 var(--spacing-3)}.ext-goals-list{display:flex;flex-direction:column;gap:var(--spacing-2)}.ext-goal-item{display:flex;align-items:baseline;gap:var(--spacing-3);font-size:var(--font-size-sm);padding:var(--spacing-2) var(--spacing-3);background:var(--color-gray-50);border-radius:var(--radius-md)}.ext-goal-key{font-weight:var(--font-weight-bold);font-size:var(--font-size-xs);color:var(--color-white);background:linear-gradient(135deg,#1a1a2e,#0f3460);width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-md);flex-shrink:0}.ext-lesson-card{border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;margin-top:var(--spacing-3);transition:border-color var(--transition-fast)}.ext-lesson-card:hover{border-color:var(--color-gray-300)}.ext-lesson-header{display:flex;align-items:center;gap:var(--spacing-3);width:100%;padding:var(--spacing-3) var(--spacing-4);background:var(--color-gray-50);border:none;cursor:pointer;text-align:left;color:inherit;font:inherit;transition:background-color var(--transition-fast)}.ext-lesson-header:hover{background-color:var(--color-gray-100)}.ext-lesson-indicator{width:24px;height:24px;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-full);flex-shrink:0}.ext-lesson-title{flex:1;font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);color:var(--color-text)}.ext-lesson-date{font-size:var(--font-size-xs);color:var(--color-text-secondary);white-space:nowrap}.ext-lesson-content{display:none}.ext-lesson-content-open{display:flex;flex-direction:column;gap:var(--spacing-3);padding:var(--spacing-4);animation:ext-slideDown .15s ease-out}.ext-field{font-size:var(--font-size-sm)}.ext-field-label{display:block;font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--spacing-1)}.ext-field-value{color:var(--color-text);line-height:var(--line-height-relaxed)}.ext-links{display:flex;flex-direction:column;gap:var(--spacing-2)}.ext-link{display:inline-flex;align-items:center;gap:var(--spacing-2);font-size:var(--font-size-sm);color:var(--color-gray-600);text-decoration:none;padding:var(--spacing-2) var(--spacing-3);background:var(--color-gray-50);border-radius:var(--radius-md);transition:all var(--transition-fast)}.ext-link:hover{color:var(--color-black);background:var(--color-gray-100)}.ext-phases-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--color-border);border-radius:var(--radius-lg)}.ext-phases-table{width:100%;border-collapse:collapse;font-size:var(--font-size-xs)}.ext-phases-table th,.ext-phases-table td{padding:var(--spacing-3) var(--spacing-3);text-align:left}.ext-phases-table th{background-color:var(--color-gray-50);font-weight:var(--font-weight-semibold);color:var(--color-gray-600);font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.03em;border-bottom:1px solid var(--color-border)}.ext-phases-table td{color:var(--color-text);vertical-align:top;border-bottom:1px solid var(--color-border)}.ext-phases-table tbody tr:last-child td{border-bottom:none}.ext-phases-table tbody tr:hover{background-color:var(--color-gray-50)}.ext-phase-type{font-weight:var(--font-weight-medium)}.ext-files-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:var(--spacing-3)}.ext-file-card{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);padding:var(--spacing-5) var(--spacing-4);background:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;font:inherit;color:inherit;text-align:center;transition:all var(--transition-fast)}.ext-file-card:hover{border-color:var(--color-gray-400);box-shadow:0 4px 12px #00000014;transform:translateY(-2px)}.ext-file-card:hover .ext-file-dl-hint{opacity:1}.ext-file-icon-wrap{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-gray-400)}.ext-file-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.ext-file-size{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.ext-file-dl-hint{font-size:var(--font-size-xs);color:var(--color-gray-400);opacity:0;transition:opacity var(--transition-fast)}[data-theme=dark] .ext-page{background-color:var(--color-background)}[data-theme=dark] .ext-card,[data-theme=dark] .ext-content-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .ext-card-icon{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .ext-input{background-color:var(--color-background);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .ext-input:focus{border-color:var(--color-gray-300);box-shadow:0 0 0 3px #ffffff14}[data-theme=dark] .ext-error{background-color:#ef44441f;border-color:#ef44444d;color:#f87171}[data-theme=dark] .ext-btn-primary{background-color:var(--color-gray-100);color:var(--color-gray-900);border-color:var(--color-gray-100)}[data-theme=dark] .ext-btn-primary:hover:not(:disabled){background-color:var(--color-white)}[data-theme=dark] .ext-label{color:var(--color-gray-300)}[data-theme=dark] .ext-hero{background:linear-gradient(135deg,#0d0d1a,#0f1629,#0a1f3d)}[data-theme=dark] .ext-section-card,[data-theme=dark] .ext-step-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .ext-section-title svg{color:var(--color-gray-500)}[data-theme=dark] .ext-count{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .ext-vocab-card{background-color:var(--color-gray-900);border-color:var(--color-border)}[data-theme=dark] .ext-vocab-card:hover{border-color:var(--color-gray-600)}[data-theme=dark] .ext-step-header:hover{background-color:var(--color-gray-800)}[data-theme=dark] .ext-step-number{background:linear-gradient(135deg,#2a2a4e,#1a3a6e)}[data-theme=dark] .ext-lesson-card{border-color:var(--color-border)}[data-theme=dark] .ext-lesson-card:hover{border-color:var(--color-gray-600)}[data-theme=dark] .ext-lesson-header{background:var(--color-gray-900)}[data-theme=dark] .ext-lesson-header:hover{background-color:var(--color-gray-800)}[data-theme=dark] .ext-lesson-indicator{background:var(--color-gray-800);border-color:var(--color-gray-600);color:var(--color-gray-300)}[data-theme=dark] .ext-goal-item{background-color:var(--color-gray-900)}[data-theme=dark] .ext-goal-key{background:linear-gradient(135deg,#2a2a4e,#1a3a6e)}[data-theme=dark] .ext-hint{background:var(--color-gray-900);border-left-color:var(--color-gray-600)}[data-theme=dark] .ext-link{color:var(--color-gray-400);background:var(--color-gray-900)}[data-theme=dark] .ext-link:hover{color:var(--color-gray-200);background:var(--color-gray-800)}[data-theme=dark] .ext-phases-wrap{border-color:var(--color-border)}[data-theme=dark] .ext-phases-table th{background-color:var(--color-gray-900);color:var(--color-gray-300)}[data-theme=dark] .ext-phases-table td{border-bottom-color:var(--color-border)}[data-theme=dark] .ext-phases-table tbody tr:hover{background-color:var(--color-gray-900)}[data-theme=dark] .ext-file-card{background-color:var(--color-gray-900);border-color:var(--color-border)}[data-theme=dark] .ext-file-card:hover{border-color:var(--color-gray-600);box-shadow:0 4px 12px #0000004d}[data-theme=dark] .ext-file-icon-wrap{background-color:var(--color-gray-800);border-color:var(--color-gray-700);color:var(--color-gray-400)}[data-theme=dark] .ext-meta-badge{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .ext-loading-spinner{border-color:var(--color-gray-700);border-top-color:var(--color-gray-200)}[data-theme=dark] .ext-rule-bullet{background:var(--color-gray-500)}@media (max-width: 640px){.ext-body{padding:var(--spacing-4) var(--spacing-3) var(--spacing-8);gap:var(--spacing-4)}.ext-hero{padding:var(--spacing-6) var(--spacing-4) 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.btn-remove:hover{background-color:#ef444426;color:#f87171}[data-theme=dark] .alert-error{background-color:#ef444426;border-color:#ef44444d;color:#f87171}[data-theme=dark] .empty-state-title{color:var(--color-gray-300)}[data-theme=dark] .empty-state-description{color:var(--color-text-secondary)}.external-actions-bar{display:flex;justify-content:flex-end;margin-bottom:1rem}.share-link-banner{display:flex;align-items:center;gap:.5rem;background:#e8f5e9;border:1px solid #a5d6a7;border-radius:8px;padding:.75rem 1rem;margin-bottom:1rem}[data-theme=dark] .share-link-banner{background:#2e7d3226;border-color:#2e7d324d}.share-link-banner span{font-weight:600;font-size:.875rem;white-space:nowrap}.share-link-banner input{flex:1;padding:.375rem .625rem;border:1px solid #ddd;border-radius:4px;font-size:.8125rem;background:#fff}[data-theme=dark] .share-link-banner input{background:#1a1a2e;border-color:#3a3a5a;color:#e0e0e0}.btn-copy{padding:.375rem 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h2{margin-bottom:var(--spacing-2)}.welcome-content p{margin-bottom:var(--spacing-8)}.welcome-stats{display:flex;gap:var(--spacing-4);justify-content:center}.stat-card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-6);min-width:120px}.stat-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-black)}.stat-label{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-top:var(--spacing-1)}.app-welcome-section{max-width:800px;width:100%}[data-theme=dark] .app-main{background-color:var(--color-background)}[data-theme=dark] .stat-card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .stat-card h3,[data-theme=dark] .stat-value{color:var(--color-text)}:root{--color-black: #0a0a0a;--color-white: #ffffff;--color-green: #22c55e;--color-green-dark: #16a34a;--color-green-light: #86efac;--color-red: #ef4444;--color-red-dark: 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1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.625;--spacing-0: 0;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--spacing-16: 4rem;--spacing-20: 5rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-full: 9999px;--shadow-xs: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-sm: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--sidebar-width: 320px;--header-height: 64px;--mobile-nav-height: 60px;--mobile-touch-target-min: 44px;--mobile-sidebar-width: 85vw;--mobile-max-width: 480px;--sidebar-width-tablet: 280px;--mobile-spacing-1: .5rem;--mobile-spacing-2: .75rem;--mobile-spacing-3: 1rem;--mobile-spacing-4: 1.25rem;--mobile-font-size-sm: .8125rem;--mobile-font-size-base: .9375rem;--mobile-font-size-lg: 1.0625rem}[data-theme=dark]{--color-primary: var(--color-gray-100);--color-secondary: var(--color-gray-400);--color-background: #0f0f10;--color-surface: var(--color-gray-900);--color-border: var(--color-gray-700);--color-text: var(--color-gray-100);--color-text-secondary: var(--color-gray-400);--color-goal-a-bg: rgba(59, 130, 246, .15);--color-goal-b-bg: rgba(139, 92, 246, .15);--color-goal-c-bg: rgba(245, 158, 11, .15);--shadow-xs: 0 1px 2px 0 rgb(0 0 0 / .4);--shadow-sm: 0 1px 3px 0 rgb(0 0 0 / .5), 0 1px 2px -1px rgb(0 0 0 / .5);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .5), 0 2px 4px -2px rgb(0 0 0 / .5);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .5), 0 4px 6px -4px rgb(0 0 0 / .5);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .6), 0 8px 10px -6px rgb(0 0 0 / .6)}@media (max-width: 480px){:root{--sidebar-width: var(--mobile-sidebar-width);--header-height: 56px;--spacing-4: var(--mobile-spacing-4)}}@media (min-width: 481px) and (max-width: 768px){:root{--sidebar-width: var(--sidebar-width-tablet)}}@media (min-width: 769px){:root{--sidebar-width: 320px}}@media (hover: none) and (pointer: coarse){.btn,button,.checkbox,input[type=radio],input[type=checkbox],.btn-sm{min-height:var(--mobile-touch-target-min);min-width:var(--mobile-touch-target-min)}.btn-xs{min-height:36px;min-width:36px;padding:.5rem .75rem}.btn:hover,.card:hover,.series-card-compact:hover{transform:none;box-shadow:var(--shadow-sm)}.btn:active,button:active{transform:scale(.98);opacity:.9}input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=time],textarea,select{min-height:var(--mobile-touch-target-min);font-size:var(--mobile-font-size-base)}}@media (hover: none){.drag-handle,[class*=drag]{width:var(--mobile-touch-target-min);height:var(--mobile-touch-target-min)}.btn,button,.card{-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}}@media (max-width: 768px) and (hover: none) and (pointer: coarse){.step-list,.lessons-list,.card-list{gap:var(--spacing-3)}.icon-button,button[class*=icon]{padding:var(--spacing-2);min-width:var(--mobile-touch-target-min);min-height:var(--mobile-touch-target-min)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);line-height:1;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-black);color:var(--color-white);border-color:var(--color-black)}.btn-primary:hover:not(:disabled){background-color:var(--color-gray-800)}.btn-secondary{background-color:var(--color-white);color:var(--color-black);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-gray-50);border-color:var(--color-gray-300)}.btn-success{background-color:var(--color-green);color:var(--color-white);border-color:var(--color-green)}.btn-success:hover:not(:disabled){background-color:var(--color-green-dark)}.btn-danger{background-color:var(--color-red);color:var(--color-white);border-color:var(--color-red)}.btn-danger:hover:not(:disabled){background-color:var(--color-red-dark)}.btn-ghost{background-color:transparent;color:var(--color-gray-600);border-color:transparent}.btn-ghost:hover:not(:disabled){background-color:var(--color-gray-100);color:var(--color-black)}.btn-sm{padding:var(--spacing-1) var(--spacing-3);font-size:var(--font-size-xs)}.btn-lg{padding:var(--spacing-3) var(--spacing-6);font-size:var(--font-size-base)}.btn-icon{padding:var(--spacing-2);width:36px;height:36px}.btn-icon.btn-sm{width:28px;height:28px;padding:var(--spacing-1)}.input,.textarea,.select{width:100%;padding:var(--spacing-2) var(--spacing-3);font-family:var(--font-family);font-size:var(--font-size-sm);line-height:var(--line-height-normal);color:var(--color-text);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:disabled,.textarea:disabled,.select:disabled{opacity:.6;cursor:not-allowed;background-color:var(--color-gray-100)}.input:focus,.textarea:focus,.select:focus{outline:none;border-color:var(--color-black);box-shadow:0 0 0 3px #0000001a}.input::placeholder,.textarea::placeholder{color:var(--color-gray-400)}.textarea{min-height:100px;resize:vertical}.select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");background-position:right var(--spacing-2) center;background-repeat:no-repeat;background-size:1.5em 1.5em;padding-right:var(--spacing-10)}.input-sm,.select-sm{padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs)}.label{display:block;margin-bottom:var(--spacing-1);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-gray-700)}.form-group{margin-bottom:var(--spacing-4)}.card{background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-4);transition:box-shadow var(--transition-fast),border-color var(--transition-fast)}.card:hover{box-shadow:var(--shadow-sm)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-3)}.card-title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-black)}.card-clickable{cursor:pointer}.card-clickable:hover{border-color:var(--color-gray-300)}.card-selected{border-color:var(--color-black);box-shadow:0 0 0 1px var(--color-black)}.badge{display:inline-flex;align-items:center;padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);border-radius:var(--radius-full);white-space:nowrap}.badge-default{background-color:var(--color-gray-100);color:var(--color-gray-700)}.badge-success{background-color:var(--color-green-light);color:var(--color-green-dark)}.badge-danger{background-color:var(--color-red-light);color:var(--color-red-dark)}.badge-goal-a{background-color:var(--color-goal-a-bg);color:var(--color-goal-a)}.badge-goal-b{background-color:var(--color-goal-b-bg);color:var(--color-goal-b)}.badge-goal-c{background-color:var(--color-goal-c-bg);color:var(--color-goal-c)}.checkbox-wrapper{display:flex;align-items:center;gap:var(--spacing-2);cursor:pointer}.checkbox{width:18px;height:18px;border:2px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);accent-color:var(--color-black)}.checkbox:checked{background-color:var(--color-black);border-color:var(--color-black)}.checkbox-label{font-size:var(--font-size-sm);color:var(--color-text);-webkit-user-select:none;user-select:none}.divider{height:1px;background-color:var(--color-border);margin:var(--spacing-4) 0}.drag-handle{display:flex;align-items:center;justify-content:center;width:24px;height:24px;color:var(--color-gray-400);cursor:grab;border-radius:var(--radius-sm);transition:color var(--transition-fast),background-color var(--transition-fast)}.drag-handle:hover{color:var(--color-gray-600);background-color:var(--color-gray-100)}.drag-handle:active{cursor:grabbing}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-12);text-align:center;color:var(--color-text-secondary)}.empty-state-icon{font-size:48px;margin-bottom:var(--spacing-4);opacity:.5}.empty-state-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);color:var(--color-gray-700);margin-bottom:var(--spacing-2)}.empty-state-description{font-size:var(--font-size-sm);max-width:300px}.dropdown{position:relative;display:inline-block}.dropdown-menu{position:absolute;top:100%;left:0;z-index:100;min-width:160px;padding:var(--spacing-1);background-color:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.dropdown-item{display:flex;align-items:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-2) var(--spacing-3);font-size:var(--font-size-sm);color:var(--color-text);background:none;border:none;border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast);text-align:left}.dropdown-item:hover{background-color:var(--color-gray-100)}.dropdown-item-danger{color:var(--color-red)}.dropdown-item-danger:hover{background-color:var(--color-red-light)}.tooltip{position:relative}.tooltip:after{content:attr(data-tooltip);position:absolute;bottom:100%;left:50%;transform:translate(-50%);padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs);color:var(--color-white);background-color:var(--color-gray-900);border-radius:var(--radius-md);white-space:nowrap;opacity:0;visibility:hidden;transition:opacity var(--transition-fast),visibility var(--transition-fast);pointer-events:none}.tooltip:hover:after{opacity:1;visibility:visible}.duration-badge{display:inline-flex;align-items:center;gap:var(--spacing-1);padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-gray-600);background-color:var(--color-gray-100);border-radius:var(--radius-sm)}.phase-indicator{width:4px;border-radius:var(--radius-full);flex-shrink:0}.phase-indicator-einstieg{background-color:var(--color-green)}.phase-indicator-erarbeitung{background-color:var(--color-goal-a)}.phase-indicator-sicherung{background-color:var(--color-goal-b)}.phase-indicator-vertiefung{background-color:var(--color-goal-c)}.phase-indicator-abschluss{background-color:var(--color-gray-400)}[data-theme=dark] .card{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .card-title{color:var(--color-text)}[data-theme=dark] .card-selected{border-color:var(--color-gray-300);box-shadow:0 0 0 1px var(--color-gray-300)}[data-theme=dark] .input,[data-theme=dark] .textarea,[data-theme=dark] .select{background-color:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}[data-theme=dark] .input:disabled,[data-theme=dark] .textarea:disabled,[data-theme=dark] .select:disabled{background-color:var(--color-gray-800)}[data-theme=dark] .btn-primary{background-color:var(--color-gray-100);color:var(--color-gray-900);border-color:var(--color-gray-100)}[data-theme=dark] .btn-primary:hover:not(:disabled){background-color:var(--color-white)}[data-theme=dark] .btn-secondary{background-color:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}[data-theme=dark] .btn-secondary:hover:not(:disabled){background-color:var(--color-gray-800);border-color:var(--color-gray-600)}[data-theme=dark] .btn-ghost{color:var(--color-gray-400)}[data-theme=dark] .btn-ghost:hover:not(:disabled){background-color:var(--color-gray-800);color:var(--color-text)}[data-theme=dark] .badge-default{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .dropdown-menu{background-color:var(--color-surface);border-color:var(--color-border)}[data-theme=dark] .dropdown-item:hover{background-color:var(--color-gray-800)}[data-theme=dark] .dropdown-item-danger:hover{background-color:#ef444426}[data-theme=dark] .empty-state-title,[data-theme=dark] .label{color:var(--color-gray-300)}[data-theme=dark] .duration-badge{background-color:var(--color-gray-800);color:var(--color-gray-300)}[data-theme=dark] .drag-handle:hover{background-color:var(--color-gray-800)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text);background-color:var(--color-background)}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);color:var(--color-text)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}p{margin-bottom:var(--spacing-4)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}ul,ol{list-style:none}img{max-width:100%;height:auto;display:block}:focus-visible{outline:2px solid var(--color-black);outline-offset:2px}::selection{background-color:var(--color-green-light);color:var(--color-black)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-surface)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-gray-400)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-secondary{color:var(--color-text-secondary)}.text-sm{font-size:var(--font-size-sm)}.text-xs{font-size:var(--font-size-xs)}.font-medium{font-weight:var(--font-weight-medium)}.font-semibold{font-weight:var(--font-weight-semibold)}