@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a25;--bg-card-hover:#22222f;--bg-input:#15151f;--border:#2a2a3a;--border-hover:#3a3a5a;--text-primary:#f0f0f5;--text-secondary:#8888a0;--text-muted:#5a5a70;--accent-blue:#4f8fff;--accent-blue-hover:#3a7aee;--accent-blue-glow:#4f8fff26;--accent-purple:#8b5cf6;--accent-purple-glow:#8b5cf626;--accent-green:#34d399;--accent-green-glow:#34d39926;--accent-orange:#f59e0b;--accent-orange-glow:#f59e0b26;--accent-red:#ef4444;--accent-red-hover:#dc2626;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 30px #00000080;--shadow-glow-blue:0 0 20px var(--accent-blue-glow);--shadow-glow-purple:0 0 20px var(--accent-purple-glow);--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s ease}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}.page-container{max-width:1200px;padding:var(--space-xl)var(--space-lg);margin:0 auto}.page-header{margin-bottom:var(--space-xl);justify-content:space-between;align-items:center;gap:var(--space-md);flex-wrap:wrap;display:flex}.page-title{background:linear-gradient(135deg,var(--text-primary),var(--accent-blue));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.75rem;font-weight:700}.page-subtitle{color:var(--text-secondary);margin-top:var(--space-xs);font-size:.9rem}.navbar{padding:var(--space-md)var(--space-lg);background:var(--bg-secondary);border-bottom:1px solid var(--border);z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#12121ad9;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.navbar-brand{align-items:center;gap:var(--space-sm);color:var(--text-primary);font-size:1.2rem;font-weight:700;text-decoration:none;display:flex}.navbar-brand-icon{font-size:1.5rem}.navbar-user{align-items:center;gap:var(--space-md);display:flex}.navbar-avatar{border:2px solid var(--border);border-radius:50%;width:32px;height:32px}.navbar-username{color:var(--text-secondary);font-size:.85rem}.btn{align-items:center;gap:var(--space-sm);padding:var(--space-sm)var(--space-md);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:none;font-family:inherit;font-size:.875rem;font-weight:500;text-decoration:none;display:inline-flex}.btn-primary{background:var(--accent-blue);color:#fff;box-shadow:var(--shadow-glow-blue)}.btn-primary:hover{background:var(--accent-blue-hover);box-shadow:0 0 30px var(--accent-blue-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--border-hover)}.btn-danger{color:var(--accent-red);background:0 0;border:1px solid #0000}.btn-danger:hover{border-color:var(--accent-red);background:#ef44441a}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-card)}.btn-google{color:#333;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);background:#fff;padding:12px 24px;font-size:1rem;font-weight:600}.btn-google:hover{box-shadow:var(--shadow-lg);background:#f5f5f5;transform:translateY(-2px)}.btn-sm{padding:var(--space-xs)var(--space-sm);font-size:.8rem}.btn-icon{padding:var(--space-xs);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;justify-content:center;align-items:center;font-size:1rem;display:inline-flex}.btn-icon:hover{color:var(--text-primary);background:var(--bg-card)}.btn-signout{color:var(--text-muted);border:1px solid var(--border);background:0 0;padding:6px 12px;font-size:.8rem}.btn-signout:hover{color:var(--accent-red);border-color:var(--accent-red)}.tabs{gap:var(--space-xs);background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--space-xs);border:1px solid var(--border);margin-bottom:var(--space-lg);display:flex}.tab{padding:var(--space-sm)var(--space-md);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);text-align:center;background:0 0;border:none;flex:1;font-family:inherit;font-size:.85rem;font-weight:500}.tab:hover{color:var(--text-primary);background:var(--bg-card)}.tab.active{color:#fff;background:var(--accent-blue);box-shadow:var(--shadow-glow-blue)}.space-tabs{gap:var(--space-xs);margin-bottom:var(--space-lg);display:flex}.space-tab{padding:var(--space-sm)var(--space-lg);border:1px solid var(--border);border-radius:var(--radius-lg);color:var(--text-secondary);background:var(--bg-card);cursor:pointer;transition:all var(--transition-fast);font-family:inherit;font-size:.9rem;font-weight:500}.space-tab:hover{color:var(--text-primary);border-color:var(--border-hover)}.space-tab.active{background:var(--accent-purple);border-color:var(--accent-purple);color:#fff;box-shadow:var(--shadow-glow-purple)}.space-tab.school.active{background:var(--accent-blue);border-color:var(--accent-blue);box-shadow:var(--shadow-glow-blue)}.space-tab.work.active{background:var(--accent-orange);border-color:var(--accent-orange);box-shadow:0 0 20px var(--accent-orange-glow)}.card-grid{gap:var(--space-md);grid-template-columns:repeat(auto-fill,minmax(280px,1fr));display:grid}.course-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);cursor:pointer;transition:all var(--transition-normal);color:inherit;text-decoration:none;display:block;position:relative;overflow:hidden}.course-card:before{content:"";background:linear-gradient(90deg,var(--accent-blue),var(--accent-purple));opacity:0;height:3px;transition:opacity var(--transition-normal);position:absolute;top:0;left:0;right:0}.course-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.course-card:hover:before{opacity:1}.course-card-name{margin-bottom:var(--space-sm);font-size:1.1rem;font-weight:600}.course-card-date{color:var(--text-muted);font-size:.8rem}.course-card-icon{margin-bottom:var(--space-md);font-size:2rem}.course-card-actions{gap:var(--space-xs);top:var(--space-md);right:var(--space-md);opacity:0;transition:opacity var(--transition-fast);display:flex;position:absolute}.course-card:hover .course-card-actions{opacity:1}.new-course-card{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);cursor:pointer;transition:all var(--transition-normal);min-height:140px;color:var(--text-muted);background:0 0;flex-direction:column;justify-content:center;align-items:center;font-family:inherit;font-size:.9rem;display:flex}.new-course-card:hover{border-color:var(--accent-blue);color:var(--accent-blue);background:var(--accent-blue-glow)}.new-course-icon{margin-bottom:var(--space-sm);font-size:2rem}.file-list{gap:var(--space-sm);flex-direction:column;display:flex}.file-item{padding:var(--space-md);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);transition:all var(--transition-fast);justify-content:space-between;align-items:center;display:flex}.file-item:hover{border-color:var(--border-hover);background:var(--bg-card-hover)}.file-info{align-items:center;gap:var(--space-md);flex:1;min-width:0;display:flex}.file-icon{flex-shrink:0;font-size:1.5rem}.file-name{text-overflow:ellipsis;white-space:nowrap;font-size:.9rem;font-weight:500;overflow:hidden}.file-meta{color:var(--text-muted);margin-top:2px;font-size:.75rem}.file-actions{align-items:center;gap:var(--space-xs);flex-shrink:0;display:flex}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:var(--space-xl);text-align:center;cursor:pointer;transition:all var(--transition-normal);color:var(--text-muted);margin-bottom:var(--space-lg)}.upload-zone:hover,.upload-zone.dragging{border-color:var(--accent-blue);background:var(--accent-blue-glow);color:var(--accent-blue)}.upload-zone-icon{margin-bottom:var(--space-sm);font-size:2.5rem}.upload-zone-text{font-size:.9rem}.upload-zone-subtext{margin-top:var(--space-xs);opacity:.7;font-size:.8rem}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;animation:fadeIn var(--transition-fast);background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--space-xl);min-width:380px;max-width:90vw;box-shadow:var(--shadow-lg);animation:slideUp var(--transition-normal)}.modal-title{margin-bottom:var(--space-lg);font-size:1.1rem;font-weight:600}.modal-actions{gap:var(--space-sm);margin-top:var(--space-lg);justify-content:flex-end;display:flex}.input{width:100%;padding:var(--space-sm)var(--space-md);background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);transition:border-color var(--transition-fast);font-family:inherit;font-size:.9rem}.input:focus{border-color:var(--accent-blue);box-shadow:var(--shadow-glow-blue);outline:none}.input::placeholder{color:var(--text-muted)}.empty-state{padding:var(--space-2xl);color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;display:flex}.empty-state-icon{margin-bottom:var(--space-md);opacity:.5;font-size:3rem}.empty-state-text{margin-bottom:var(--space-xs);font-size:1rem}.empty-state-subtext{opacity:.7;font-size:.85rem}.spinner{border:2px solid var(--border);border-top-color:var(--accent-blue);border-radius:50%;width:20px;height:20px;animation:.6s linear infinite spin;display:inline-block}.loading-container{padding:var(--space-2xl);justify-content:center;align-items:center;gap:var(--space-md);color:var(--text-secondary);display:flex}.landing{text-align:center;min-height:100vh;padding:var(--space-xl);background:radial-gradient(at top,#4f8fff14,#0000 60%),radial-gradient(at 100% 100%,#8b5cf60f,#0000 60%);flex-direction:column;justify-content:center;align-items:center;display:flex}.landing-icon{margin-bottom:var(--space-lg);font-size:4rem;animation:3s ease-in-out infinite float}.landing-title{background:linear-gradient(135deg,var(--text-primary),var(--accent-blue),var(--accent-purple));-webkit-text-fill-color:transparent;margin-bottom:var(--space-md);-webkit-background-clip:text;background-clip:text;font-size:2.5rem;font-weight:800}.landing-desc{color:var(--text-secondary);max-width:500px;margin-bottom:var(--space-xl);font-size:1.1rem;line-height:1.6}.breadcrumb{align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg);color:var(--text-muted);font-size:.85rem;display:flex}.breadcrumb a{color:var(--text-secondary);transition:color var(--transition-fast);text-decoration:none}.breadcrumb a:hover{color:var(--accent-blue)}.breadcrumb-separator{color:var(--text-muted)}.breadcrumb-current{color:var(--text-primary);font-weight:500}.back-link{align-items:center;gap:var(--space-sm);color:var(--text-secondary);margin-bottom:var(--space-lg);transition:color var(--transition-fast);font-size:.85rem;text-decoration:none;display:inline-flex}.back-link:hover{color:var(--accent-blue)}.canvas-page{flex-direction:column;height:100vh;display:flex;overflow:hidden}.canvas-toolbar{padding:var(--space-sm)var(--space-md);border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:100;justify-content:space-between;align-items:center;gap:var(--space-md);background:#12121af2;flex-shrink:0;display:flex}.canvas-toolbar-left{align-items:center;gap:var(--space-md);display:flex}.canvas-toolbar-title{align-items:center;gap:var(--space-sm);font-size:1rem;font-weight:600;display:flex}.canvas-toolbar-icon{font-size:1.2rem}.canvas-toolbar-dropdowns{gap:var(--space-sm);display:flex}.canvas-toolbar-right{align-items:center;gap:var(--space-sm);display:flex}.canvas-main{flex:1;display:flex;position:relative;overflow:hidden}.dropdown{position:relative}.dropdown-trigger{align-items:center;gap:var(--space-sm);border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-card);color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;padding:6px 14px;font-family:inherit;font-size:.82rem;font-weight:500;display:flex}.dropdown-trigger:hover{border-color:var(--border-hover);background:var(--bg-card-hover)}.cat-blue .dropdown-trigger:hover{border-color:var(--accent-blue)}.cat-green .dropdown-trigger:hover{border-color:var(--accent-green)}.cat-purple .dropdown-trigger:hover{border-color:var(--accent-purple)}.dropdown-icon{font-size:1rem}.dropdown-label{text-overflow:ellipsis;max-width:140px;overflow:hidden}.dropdown-arrow{transition:transform var(--transition-fast);color:var(--text-muted);font-size:.7rem}.dropdown-arrow.open{transform:rotate(180deg)}.dropdown-menu{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);min-width:280px;box-shadow:var(--shadow-lg);z-index:200;animation:slideUp var(--transition-fast);position:absolute;top:calc(100% + 6px);left:0;overflow:hidden}.dropdown-header{padding:var(--space-sm)var(--space-md);border-bottom:1px solid var(--border);color:var(--text-secondary);justify-content:space-between;align-items:center;font-size:.8rem;font-weight:600;display:flex}.dropdown-items{max-height:300px;padding:var(--space-xs);overflow-y:auto}.dropdown-items::-webkit-scrollbar{width:4px}.dropdown-items::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.dropdown-loading{padding:var(--space-lg);justify-content:center;display:flex}.dropdown-empty{padding:var(--space-md);text-align:center;color:var(--text-muted);font-size:.8rem}.dropdown-item{align-items:center;gap:var(--space-sm);padding:var(--space-sm)var(--space-md);color:var(--text-primary);cursor:pointer;text-align:left;border-radius:var(--radius-sm);width:100%;transition:background var(--transition-fast);background:0 0;border:none;font-family:inherit;font-size:.82rem;display:flex}.dropdown-item:hover{background:var(--bg-card)}.dropdown-item-icon{flex-shrink:0;font-size:1rem}.dropdown-item-name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.dropdown-item-add{color:var(--accent-blue);opacity:0;transition:opacity var(--transition-fast);font-size:1rem;font-weight:700}.dropdown-item:hover .dropdown-item-add{opacity:1}.canvas-container{cursor:grab;background:var(--bg-primary);flex:1;position:relative;overflow:hidden}.canvas-container.panning{cursor:grabbing}.canvas-container.linking{cursor:crosshair}.canvas-grid{background-image:radial-gradient(circle,var(--border)1px,transparent 1px);pointer-events:all;position:absolute;inset:0}.canvas-svg{pointer-events:none;z-index:1;width:100%;height:100%;position:absolute;inset:0}.canvas-svg path{pointer-events:stroke}.canvas-svg path:hover+path{opacity:1!important;stroke:var(--accent-red)!important}.canvas-node{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);cursor:grab;-webkit-user-select:none;user-select:none;z-index:2;width:200px;transition:box-shadow var(--transition-fast),border-color var(--transition-fast);background-position:50%;background-size:cover;position:absolute;overflow:hidden}.canvas-node.has-thumbnail{color:#fff}.canvas-node.has-thumbnail .canvas-node-category{color:#fffc!important}.canvas-node-overlay{z-index:0;pointer-events:none;background:#1e1e2899;position:absolute;inset:0}.canvas-node:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md);z-index:3}.canvas-node.selected{z-index:4}.canvas-node.dragging{cursor:grabbing;opacity:.9;z-index:5}.canvas-node-accent{z-index:1;width:100%;height:3px;position:relative}.canvas-node-content{align-items:center;gap:var(--space-sm);padding:var(--space-sm)var(--space-md);z-index:1;display:flex;position:relative}.canvas-node-icon{flex-shrink:0;font-size:1.3rem}.canvas-node-info{flex:1;min-width:0}.canvas-node-name{text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;font-weight:500;overflow:hidden}.canvas-node-category{margin-top:1px;font-size:.65rem}.canvas-node-handle{background:var(--accent-blue);border:2px solid var(--bg-primary);cursor:crosshair;opacity:0;width:10px;height:10px;transition:opacity var(--transition-fast);z-index:6;border-radius:50%;position:absolute;top:50%;right:-5px;transform:translateY(-50%)}.canvas-node:hover .canvas-node-handle{opacity:1}.canvas-context-overlay{z-index:999;position:fixed;inset:0}.canvas-context-menu{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-xs);min-width:180px;box-shadow:var(--shadow-lg);z-index:1000;animation:slideUp var(--transition-fast);position:fixed}.canvas-context-item{align-items:center;gap:var(--space-sm);padding:var(--space-sm)var(--space-md);color:var(--text-primary);cursor:pointer;text-align:left;border-radius:var(--radius-sm);width:100%;transition:background var(--transition-fast);background:0 0;border:none;font-family:inherit;font-size:.82rem;display:flex}.canvas-context-item:hover{background:var(--bg-card)}.canvas-context-item.danger{color:var(--accent-red)}.canvas-context-item.danger:hover{background:#ef44441a}.preview-panel{background:var(--bg-secondary);border-left:1px solid var(--border);width:280px;animation:slideInRight var(--transition-normal);z-index:10;flex-direction:column;flex-shrink:0;display:flex}.preview-header{padding:var(--space-md);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;display:flex}.preview-title{font-size:.85rem;font-weight:600}.preview-content{padding:var(--space-lg);text-align:center;align-items:center;gap:var(--space-sm);flex-direction:column;flex:1;display:flex;overflow-y:auto}.preview-viewer{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border);justify-content:center;align-items:center;width:100%;min-height:150px;display:flex;overflow:hidden}.preview-img{object-fit:contain;max-width:100%;max-height:200px}.preview-pdf{background:#fff;justify-content:center;width:100%;display:flex;overflow:hidden}.preview-pdf .react-pdf__Page__canvas{max-width:100%!important;height:auto!important}.preview-pptx{background:#fff;width:100%;overflow:hidden}.preview-fallback{padding:var(--space-xl)0;flex-direction:column;justify-content:center;align-items:center;display:flex}.preview-loading{flex-direction:column;justify-content:center;align-items:center;min-height:150px;display:flex}.preview-icon{margin-bottom:var(--space-sm);font-size:3rem}.preview-name{word-break:break-word;font-size:.9rem;font-weight:600}.preview-category{font-size:.8rem;font-weight:500}.preview-meta{color:var(--text-muted);font-size:.75rem}.preview-actions{padding:var(--space-md);border-top:1px solid var(--border)}.sticky-note{cursor:grab;-webkit-user-select:none;user-select:none;z-index:2;transition:box-shadow var(--transition-fast),border-color var(--transition-fast);clip-path:polygon(0 0,100% 0,100% 100%,20px 100%,0 calc(100% - 20px));border:none;border-radius:4px 4px 4px 0;flex-direction:column;display:flex;position:absolute;box-shadow:2px 3px 8px #0000002e}.sticky-note:after{content:"";pointer-events:none;clip-path:polygon(0 0,100% 100%,0 100%);width:20px;height:20px;position:absolute;bottom:0;left:0}.sticky-note.color-yellow{background:#fff9c4}.sticky-note.color-yellow:after{background:khaki}.sticky-note.color-green{background:#c8e6c9}.sticky-note.color-green:after{background:#a5c9a7}.sticky-note.color-blue{background:#bbdefb}.sticky-note.color-blue:after{background:#90c2f0}.sticky-note.color-purple{background:#e1bee7}.sticky-note.color-purple:after{background:#c89dd1}.sticky-note:hover{z-index:3;box-shadow:4px 6px 16px #00000038}.sticky-note.selected{z-index:4;outline-offset:1px;outline:2px solid #00000026;box-shadow:4px 6px 16px #00000040}.sticky-note.dragging{cursor:grabbing;opacity:.9;z-index:5}.sticky-note-textarea{color:#333;resize:none;cursor:text;background:0 0;border:none;outline:none;flex:1;width:100%;padding:10px 12px;font-family:Segoe UI,Noto Sans,sans-serif;font-size:.82rem;line-height:1.5;overflow-y:auto}.sticky-note-textarea::placeholder{color:#0000004d}.sticky-note-textarea::-webkit-scrollbar{width:3px}.sticky-note-textarea::-webkit-scrollbar-thumb{background:#00000026;border-radius:2px}.sticky-note-dragbar{cursor:grab;flex-shrink:0;justify-content:flex-end;align-items:center;width:100%;height:24px;padding:0 6px;display:flex}.sticky-note-dragbar:active{cursor:grabbing}.sticky-note-colors{opacity:0;transition:opacity var(--transition-fast);z-index:10;gap:4px;display:flex}.sticky-note:hover .sticky-note-colors{opacity:1}.sticky-note-color-dot{cursor:pointer;width:14px;height:14px;transition:transform var(--transition-fast),border-color var(--transition-fast);border:2px solid #ffffffb3;border-radius:50%;box-shadow:0 1px 3px #0003}.sticky-note-color-dot:hover{border-color:#fff;transform:scale(1.25)}.sticky-note-color-dot.active{border-color:#0006}.sticky-note-color-dot.dot-yellow{background:#fff9c4}.sticky-note-color-dot.dot-green{background:#c8e6c9}.sticky-note-color-dot.dot-blue{background:#bbdefb}.sticky-note-color-dot.dot-purple{background:#e1bee7}.sticky-note-resize{z-index:10;position:absolute}.sticky-note-resize.resize-right{cursor:ew-resize;width:6px;top:6px;bottom:6px;right:-3px}.sticky-note-resize.resize-bottom{cursor:ns-resize;height:6px;bottom:-3px;left:6px;right:26px}.sticky-note-resize.resize-corner{cursor:nwse-resize;width:12px;height:12px;bottom:-3px;right:-3px}.sticky-note-handle{border:2px solid var(--bg-primary);cursor:crosshair;opacity:0;width:10px;height:10px;transition:opacity var(--transition-fast);z-index:11;background:#888;border-radius:50%;position:absolute;top:50%;right:-5px;transform:translateY(-50%)}.sticky-note:hover .sticky-note-handle{opacity:1}.sticky-note-fold-grab{cursor:grab;z-index:10;clip-path:polygon(0 0,100% 100%,0 100%);width:20px;height:20px;position:absolute;bottom:0;left:0}.sticky-note-fold-grab:active{cursor:grabbing}.btn-add-note{border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-card);color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;align-items:center;gap:4px;padding:6px 12px;font-family:inherit;font-size:.82rem;font-weight:500;display:flex}.btn-add-note:hover{background:#fff9c41f;border-color:#ffe082}.canvas-zoom-indicator{bottom:var(--space-md);left:var(--space-md);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:10;background:#12121acc;padding:4px 10px;font-size:.75rem;position:absolute}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@media (max-width:768px){.page-container{padding:var(--space-md)}.page-title{font-size:1.3rem}.card-grid{grid-template-columns:1fr}.tabs{flex-wrap:wrap}.landing-title{font-size:1.8rem}}