.navbar{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:0;box-shadow:0 2px 4px #0000001a;margin-bottom:30px}.navbar-container{max-width:1400px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center}.navbar-brand h1{margin:0;padding:20px 0;font-size:1.8em;font-weight:600}.navbar-menu{display:flex;gap:0}.navbar-link{display:block;padding:20px 30px;color:#fff;text-decoration:none;font-weight:500;transition:all .3s;border-bottom:3px solid transparent}.navbar-link:hover{background:#ffffff1a;border-bottom-color:#ffffff4d}.navbar-link.active{background:#ffffff26;border-bottom-color:#fff;font-weight:600}@media (max-width: 768px){.navbar-container{flex-direction:column;padding:15px}.navbar-brand h1{font-size:1.5em;padding:10px 0}.navbar-menu{width:100%;justify-content:space-around}.navbar-link{padding:15px 20px;font-size:.9em}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .2s}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#fff;padding:30px;border-radius:10px;max-width:500px;width:90%;box-shadow:0 10px 30px #0000004d;animation:slideDown .3s}@keyframes slideDown{0%{transform:translateY(-50px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-content h3{margin-top:0;margin-bottom:20px;color:#667eea;font-size:1.5em}.modal-content .form-group{margin-bottom:20px}.modal-content label{display:block;margin-bottom:8px;font-weight:600;color:#555}.modal-content input[type=text]{width:100%;padding:12px;border:2px solid #ddd;border-radius:5px;font-size:1em;transition:border-color .3s}.modal-content input[type=text]:focus{outline:none;border-color:#667eea}.modal-content textarea{width:100%;padding:12px 14px;border:2px solid #e2e8f0;border-radius:8px;font-size:1em;font-family:inherit;line-height:1.5;color:#2d3748;background-color:#fff;transition:all .2s ease;resize:vertical;min-height:80px;box-sizing:border-box}.modal-content textarea:hover{border-color:#cbd5e0}.modal-content textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;background-color:#fafafa}.modal-content textarea::placeholder{color:#a0aec0;opacity:1}.modal-content textarea::-webkit-resizer{border-radius:0 0 8px}.error-message{color:#e53e3e;font-size:.9em;margin-top:5px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}.btn-secondary{background:#718096;color:#fff}.btn-secondary:hover{background:#4a5568}.admin-view{max-width:1400px;margin:0 auto;padding:20px}.help-text{color:#666;font-size:.9em;margin-bottom:10px}.cards-list{margin-top:20px}.cards-count{margin-bottom:15px;padding:10px;background:#f7fafc;border-radius:5px;color:#555}.cards-count strong{color:#667eea;font-size:1.2em}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:15px}.card-item{background:#fff;padding:15px;border:1px solid #ddd;border-radius:5px;border-left:4px solid #667eea;box-shadow:0 2px 4px #0000001a;transition:transform .2s}.card-item:hover{transform:translateY(-2px);box-shadow:0 4px 8px #00000026}.sorting-view{max-width:1400px;margin:0 auto;padding:20px}.sorting-controls{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}.sorting-area{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-bottom:30px}.category-container{background:#f9f9f9;border:2px solid #ddd;border-radius:8px;padding:15px;min-height:200px}.category-container.unclassified{background:#fff5f5;border-color:#fc8181}.category-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #ddd}.category-header h3{color:#333;font-size:1.3em;margin:0}.category-header .category-count{background:#667eea;color:#fff;padding:4px 12px;border-radius:12px;font-size:.9em;font-weight:600}.category-cards{min-height:100px}.card-item-in-category{background:#fff;padding:12px 15px;margin-bottom:10px;border-radius:5px;border-left:4px solid #667eea;box-shadow:0 2px 4px #0000001a;display:flex;justify-content:space-between;align-items:center}.card-item-in-category span{flex:1}.btn-remove{background:#f56565;color:#fff;border:none;border-radius:50%;width:24px;height:24px;cursor:pointer;font-size:1.2em;line-height:1;padding:0;display:flex;align-items:center;justify-content:center;transition:background .2s}.btn-remove:hover{background:#e53e3e}.unclassified-section{margin-top:30px;padding-top:30px;border-top:2px solid #eee}.unclassified-section h3{color:#e53e3e;margin-bottom:20px}.unclassified-cards{display:flex;flex-wrap:wrap;gap:15px}.unclassified-card{background:#fff;padding:12px 15px;border:2px dashed #fc8181;border-radius:5px;box-shadow:0 2px 4px #0000001a;display:flex;align-items:center;gap:10px;position:relative}.unclassified-card span{flex:1}.card-actions{position:relative}.btn-add{background:#48bb78;color:#fff;border:none;border-radius:50%;width:28px;height:28px;cursor:pointer;font-size:1.2em;font-weight:700;line-height:1;padding:0;display:flex;align-items:center;justify-content:center;transition:all .2s;box-shadow:0 2px 4px #0000001a}.btn-add:hover{background:#38a169;transform:scale(1.1)}.category-dropdown{position:absolute;top:100%;right:0;margin-top:5px;background:#fff;border:1px solid #ddd;border-radius:5px;box-shadow:0 4px 8px #00000026;min-width:200px;z-index:100;max-height:300px;overflow-y:auto}.dropdown-item{display:block;width:100%;padding:12px 15px;text-align:left;background:#fff;border:none;border-bottom:1px solid #eee;cursor:pointer;transition:background .2s;font-size:.95em}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover{background:#f7fafc}.dropdown-item.add-category{color:#667eea;font-weight:600;border-top:2px solid #eee}.dropdown-item.add-category:hover{background:#f0f4ff}.empty-state-small{text-align:center;padding:30px;color:#999;font-style:italic;font-size:.9em}.analytics-view{max-width:1400px;margin:0 auto;padding:20px}.analytics-controls{display:flex;gap:10px;margin-bottom:30px;flex-wrap:wrap}.info-box{background:#f7fafc;padding:20px;border-radius:8px;border-left:4px solid #667eea;margin-bottom:30px}.info-box h3{color:#667eea;margin-top:0;margin-bottom:15px}.info-box ul{margin:0;padding-left:20px;color:#555}.info-box li{margin-bottom:10px;line-height:1.6}.dendrogram-container{margin-top:30px}.dendrogram-container h3{color:#667eea;margin-bottom:20px;text-align:center}.dendrogram-image-wrapper{text-align:center;background:#fff;padding:20px;border-radius:8px}.dendrogram-image-wrapper img{max-width:100%;height:auto;border:1px solid #ddd;border-radius:4px}.analytics-tabs{display:flex;gap:10px;margin-bottom:30px;border-bottom:2px solid #e0e0e0;padding-bottom:0}.tab-button{padding:12px 24px;background:transparent;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:1em;font-weight:600;color:#666;transition:all .3s;margin-bottom:-2px}.tab-button:hover:not(:disabled){color:#667eea;background:#f7fafc}.tab-button.active{color:#667eea;border-bottom-color:#667eea}.tab-button:disabled{opacity:.5;cursor:not-allowed}.matrix-container{margin-top:30px}.matrix-container h3{color:#667eea;margin-bottom:20px}.similarity-matrix-wrapper{overflow-x:auto;background:#fff;padding:20px;border-radius:8px}.similarity-matrix{width:100%;border-collapse:collapse;font-size:.85em;min-width:500px}.similarity-matrix thead{background:#f7fafc;position:sticky;top:0;z-index:10}.similarity-matrix th{padding:10px 8px;text-align:center;font-weight:600;color:#333;border:1px solid #e0e0e0;white-space:nowrap;max-width:120px;overflow:hidden;text-overflow:ellipsis}.matrix-row-label{background:#f7fafc;font-weight:600;padding:10px 12px;text-align:left;border:1px solid #e0e0e0;position:sticky;left:0;z-index:5;white-space:nowrap;max-width:200px;overflow:hidden;text-overflow:ellipsis}.matrix-cell{padding:8px;text-align:center;border:1px solid #e0e0e0;min-width:60px;font-size:.9em;cursor:pointer;transition:transform .2s}.matrix-cell:hover{transform:scale(1.1);z-index:1;position:relative;box-shadow:0 2px 8px #0003}.standardization-container{margin-top:30px}.standardization-container h3{color:#667eea;margin-bottom:20px}.standardization-table-wrapper{overflow-x:auto;background:#fff;padding:20px;border-radius:8px}.standardization-table{width:100%;border-collapse:collapse;font-size:.95em}.standardization-table thead{background:#f7fafc}.standardization-table th{padding:12px 15px;text-align:left;font-weight:600;color:#333;border-bottom:2px solid #667eea}.standardization-table td{padding:10px 15px;border-bottom:1px solid #e0e0e0}.standardization-table tbody tr:hover{background:#f7fafc}.card-name-cell{font-weight:600;background:#f7fafc;vertical-align:top}.first-category-row{border-top:2px solid #ddd}.percentage-bar-container{position:relative;width:100%;height:24px;background:#e0e0e0;border-radius:4px;overflow:hidden}.percentage-bar{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);transition:width .3s}.percentage-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:.85em;font-weight:600;color:#333;z-index:1}.analysis-container{margin-top:30px;padding:20px;background:#fff;border-radius:8px}.analysis-section{margin-bottom:30px}.analysis-section h4{font-size:1.2em;font-weight:600;margin-bottom:15px}.analysis-section ul{list-style-type:disc;padding-left:20px}.analysis-section li{margin-bottom:10px;line-height:1.8}.graph-container{margin-top:30px}.graph-wrapper{background:#fff;border-radius:8px;overflow:hidden;border:1px solid #e0e0e0}.graph-legend-scale span{height:18px;line-height:18px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5;color:#333}#root{min-height:100vh}.app-container{min-height:100vh;display:flex;flex-direction:column}.section{background:#fff;padding:25px;border-radius:8px;margin-bottom:20px;box-shadow:0 2px 4px #0000001a;flex:1}.section h2{color:#667eea;margin-bottom:20px;font-size:1.8em;border-bottom:2px solid #eee;padding-bottom:10px}.form-group{margin-bottom:20px}.form-group h3{color:#555;margin-bottom:15px;font-size:1.3em}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#555}.form-group input[type=text],.form-group input[type=file],.form-group select{width:100%;padding:10px;border:2px solid #ddd;border-radius:5px;font-size:1em;transition:border-color .3s}.form-group input[type=text]:focus,.form-group select:focus{outline:none;border-color:#667eea}.btn{padding:12px 24px;border:none;border-radius:5px;font-size:1em;font-weight:600;cursor:pointer;transition:all .3s;margin-right:10px;margin-bottom:10px}.btn-primary{background:#667eea;color:#fff}.btn-primary:hover{background:#5568d3;transform:translateY(-2px);box-shadow:0 4px 8px #667eea4d}.btn-success{background:#48bb78;color:#fff}.btn-success:hover{background:#38a169}.btn-danger{background:#f56565;color:#fff}.btn-danger:hover{background:#e53e3e}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.stats{display:flex;gap:20px;margin-bottom:20px;flex-wrap:wrap}.stat-box{background:#f7fafc;padding:15px;border-radius:5px;border-left:4px solid #667eea;flex:1;min-width:150px}.stat-box strong{display:block;font-size:1.5em;color:#667eea}.stat-box span{color:#666;font-size:.9em}.error{background:#fed7d7;color:#c53030;padding:15px;border-radius:5px;margin-bottom:20px;border-left:4px solid #e53e3e}.success{background:#c6f6d5;color:#22543d;padding:15px;border-radius:5px;margin-bottom:20px;border-left:4px solid #48bb78}.empty-state{text-align:center;padding:60px 20px;color:#999;background:#f9f9f9;border-radius:8px;border:2px dashed #ddd}.empty-state p{font-size:1.1em;margin:0}.select-input{width:100%;padding:12px;border:2px solid #ddd;border-radius:5px;font-size:1em;background:#fff;cursor:pointer}.select-input:focus{outline:none;border-color:#667eea}