:root{--color-primary: #3b82f6;--color-primary-dark: #2563eb;--color-secondary: #8b5cf6;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-bg: #f9fafb;--color-surface: #ffffff;--color-border: #e5e7eb;--color-text-primary: #111827;--color-text-secondary: #6b7280;--color-text-muted: #9ca3af;--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text-primary);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2;margin-bottom:var(--spacing-md)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}p{margin-bottom:var(--spacing-md)}a{color:var(--color-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--color-primary-dark)}.text-center{text-align:center}.text-muted{color:var(--color-text-muted)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}#app{display:flex;flex-direction:column;min-height:100vh}.app-header{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%);color:#fff;padding:var(--spacing-xl) var(--spacing-lg);text-align:center;box-shadow:var(--shadow-md)}.app-header h1{margin-bottom:var(--spacing-sm);font-size:var(--font-size-3xl)}.app-header .subtitle{font-size:var(--font-size-lg);opacity:.95;margin-bottom:0}.app-main{flex:1;padding:var(--spacing-2xl) var(--spacing-lg)}.app-footer{background:var(--color-surface);border-top:1px solid var(--color-border);padding:var(--spacing-lg);text-align:center;color:var(--color-text-secondary);font-size:var(--font-size-sm)}.container{max-width:1400px;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-2xl)}@media(min-width:1024px){.container{flex-direction:row;gap:var(--spacing-xl)}.input-section{flex:0 0 350px}.results-section{flex:1}}.input-section{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-md);height:fit-content}.results-section{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-md);min-height:600px;display:flex;align-items:center;justify-content:center}.empty-state{text-align:center;color:var(--color-text-secondary)}.empty-icon{font-size:4rem;margin-bottom:var(--spacing-lg)}.empty-state h3{color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.empty-state p{margin-bottom:0}.input-form h2{margin-bottom:var(--spacing-lg);color:var(--color-text-primary)}.form-group{margin-bottom:var(--spacing-lg)}.form-group label{display:block;margin-bottom:var(--spacing-xs);font-weight:500;color:var(--color-text-primary);font-size:var(--font-size-sm)}.form-group input,.form-group select{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-base);font-family:var(--font-family);transition:border-color .2s,box-shadow .2s}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.form-group input:disabled,.form-group select:disabled{background-color:var(--color-bg);cursor:not-allowed;opacity:.6}.form-row{display:flex;gap:var(--spacing-md)}.form-row .form-group{flex:1}.auth-toggle{margin-bottom:var(--spacing-md)}.auth-toggle label{display:flex;align-items:center;gap:var(--spacing-xs);cursor:pointer;font-weight:400}.auth-toggle input[type=checkbox]{width:auto;cursor:pointer}.auth-section{padding:var(--spacing-md);background:var(--color-bg);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg)}.error{display:block;color:var(--color-error);font-size:var(--font-size-sm);margin-top:var(--spacing-xs)}.btn-primary,.btn-secondary,.btn-control{padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-size:var(--font-size-base);font-weight:500;cursor:pointer;transition:all .2s;font-family:var(--font-family)}.btn-primary{width:100%;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:var(--color-surface);color:var(--color-primary);border:1px solid var(--color-primary)}.btn-secondary:hover{background:var(--color-primary);color:#fff}.btn-control{background:var(--color-bg);color:var(--color-text-primary);border:1px solid var(--color-border);padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-sm)}.btn-control:hover{background:var(--color-surface);border-color:var(--color-primary)}.loading-state{text-align:center;padding:var(--spacing-2xl)}.spinner{width:50px;height:50px;margin:0 auto var(--spacing-lg);border:4px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-state p{color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.loading-state .sub-message{font-size:var(--font-size-sm);color:var(--color-text-muted)}.error-display{text-align:center;padding:var(--spacing-2xl)}.error-icon{font-size:3rem;margin-bottom:var(--spacing-lg)}.error-display h3{color:var(--color-error);margin-bottom:var(--spacing-md)}.error-display p{color:var(--color-text-secondary);margin-bottom:var(--spacing-lg)}.flow-diagram-container{width:100%;height:100%;display:flex;flex-direction:column}.diagram-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);flex-wrap:wrap;gap:var(--spacing-md)}.diagram-header h2{margin-bottom:0}.diagram-stats{display:flex;gap:var(--spacing-lg);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.diagram-stats span{padding:var(--spacing-xs) var(--spacing-sm);background:var(--color-bg);border-radius:var(--radius-sm)}.diagram-legend{display:flex;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg);flex-wrap:wrap}.legend-item{display:flex;align-items:center;gap:var(--spacing-xs);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.legend-color{width:16px;height:16px;border-radius:50%;border:2px solid white;box-shadow:var(--shadow-sm)}.flow-diagram{flex:1;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);min-height:500px}.diagram-controls{margin-top:var(--spacing-lg);display:flex;justify-content:center;gap:var(--spacing-md)}.input-form[data-v-0f96f1fd]{display:flex;flex-direction:column;gap:16px;width:100%}.form-section[data-v-0f96f1fd]{display:flex;flex-direction:column;gap:8px}.input-label[data-v-0f96f1fd]{font-weight:600;font-size:.9rem;color:#374151}.text-input[data-v-0f96f1fd]{padding:10px 12px;border:1px solid #d1d5db;border-radius:4px;font-size:1rem;outline:none;transition:all .2s;width:100%}.text-input[data-v-0f96f1fd]:focus{border-color:#2563eb;box-shadow:0 0 0 2px #2563eb1a}.text-input.sm[data-v-0f96f1fd]{font-size:.9rem;padding:8px 10px;background:#f9fafb}.btn-primary[data-v-0f96f1fd]{background-color:#1d4ed8;color:#fff;padding:10px;border:none;border-radius:4px;font-weight:600;font-size:1rem;cursor:pointer;width:100%;transition:background-color .2s}.btn-primary[data-v-0f96f1fd]:hover:not(:disabled){background-color:#1e40af}.btn-primary[data-v-0f96f1fd]:disabled{opacity:.7;cursor:not-allowed}.divider[data-v-0f96f1fd]{height:1px;background-color:#e5e7eb;margin:4px 0}.collapsible-header[data-v-0f96f1fd]{width:100%;display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:4px;color:#374151;font-size:.9rem;font-weight:500;cursor:pointer;text-align:left}.collapsible-header[data-v-0f96f1fd]:hover{background:#e5e7eb}.collapsible-content[data-v-0f96f1fd]{padding:12px;border-top:none;border-radius:0 0 4px 4px;background:#fff;display:flex;flex-direction:column;gap:12px}.chevron[data-v-0f96f1fd]{font-weight:700;transition:transform .2s}.chevron.rotated[data-v-0f96f1fd]{transform:rotate(90deg)}.form-group[data-v-0f96f1fd]{width:100%}.form-row[data-v-0f96f1fd]{display:flex;gap:10px}.half[data-v-0f96f1fd]{flex:1}.param-label[data-v-0f96f1fd]{display:block;font-size:.8rem;margin-bottom:4px;color:#6b7280}.select-input[data-v-0f96f1fd]{width:100%;padding:6px;border:1px solid #d1d5db;border-radius:4px;font-size:.9rem}.error-message[data-v-0f96f1fd]{color:#dc2626;font-size:.875rem;margin-top:4px}.flow-diagram-container[data-v-680ff2ee]{display:flex;flex-direction:column;height:100%;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 3px #0000001a}.diagram-info-bar[data-v-680ff2ee]{padding:16px;border-bottom:1px solid #e5e7eb;display:flex;justify-content:space-between;align-items:center;background:#f9fafb}.diagram-info-bar h3[data-v-680ff2ee]{margin:0;font-size:1.1rem;color:#374151;font-weight:600}.diagram-canvas[data-v-680ff2ee]{flex:1;overflow:hidden;position:relative;background-color:#f8fafc;background-image:radial-gradient(#cbd5e1 1px,transparent 1px);background-size:20px 20px}.flow-svg[data-v-680ff2ee]{width:100%;height:100%;cursor:grab}.flow-svg[data-v-680ff2ee]:active{cursor:grabbing}.flow-link[data-v-680ff2ee]{fill:none;stroke:#9ca3af;stroke-width:2px}.node-box[data-v-680ff2ee]{fill:#fff;stroke:#e5e7eb;stroke-width:1px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.05));transition:all .2s}.flow-node:hover .node-box[data-v-680ff2ee]{stroke:#6366f1;stroke-width:2px}.start-node .node-box[data-v-680ff2ee]{stroke:#10b981;stroke-width:2px}.node-content[data-v-680ff2ee]{width:100%;height:100%;display:flex;align-items:center;justify-content:center;text-align:center}.node-title[data-v-680ff2ee]{font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial;font-size:13px;color:#1f2937;font-weight:500;pointer-events:none}.zoom-controls[data-v-680ff2ee]{display:flex;gap:8px}.zoom-btn[data-v-680ff2ee]{background:#fff;border:1px solid #d1d5db;border-radius:4px;padding:4px 12px;cursor:pointer;font-size:14px;color:#4b5563;transition:all .1s}.zoom-btn[data-v-680ff2ee]:hover{background:#f3f4f6;border-color:#9ca3af}.empty-diagram[data-v-680ff2ee]{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#6b7280}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f3f4f6}.app-container{display:flex;height:100vh;overflow:hidden}.sidebar{width:300px;background-color:#fff;border-right:1px solid #e5e7eb;padding:24px;display:flex;flex-direction:column;flex-shrink:0;z-index:10}.sidebar-title{font-size:1.25rem;font-weight:700;color:#111827;margin-top:0;margin-bottom:24px}.sidebar-footer{margin-top:auto;font-size:.75rem;color:#9ca3af;text-align:center}.main-content{flex:1;display:flex;flex-direction:column;background-color:#f9fafb;position:relative}.content-header{padding:20px 32px;border-bottom:1px solid #e5e7eb;background-color:#fff}.page-title{font-size:1.25rem;font-weight:600;color:#374151;margin:0}.visualization-area{flex:1;padding:24px 32px;overflow:hidden;position:relative}.empty-state{height:100%;display:flex;justify-content:center;align-items:center;color:#6b7280}.empty-content{text-align:center}.empty-icon{font-size:2rem;display:block;margin-bottom:16px}.flow-diagram-container{height:100%;border:1px solid #e5e7eb;border-radius:8px;background-color:#fff}