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var(--space-3);font-size:var(--text-sm)}.node-popup{width:280px;max-height:340px;overflow-y:auto;background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--color-border-hover);border-radius:var(--radius-lg);padding:10px var(--space-3);font-size:var(--text-sm);color:var(--color-text-primary);line-height:1.5;pointer-events:auto;transform:translate(calc(-100% - 36px),-50%);scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}.node-popup-header{display:flex;align-items:center;margin-bottom:6px;gap:var(--space-1)}.node-popup-summary{font-size:12px;line-height:1.6;color:var(--color-text-primary);margin-bottom:6px}.node-popup-content{font-size:var(--text-xs);line-height:1.5;color:var(--color-text-secondary);margin-bottom:6px;max-height:60px;overflow-y:auto;border-top:1px solid var(--color-border);padding-top:var(--space-1)}.node-popup-items{border-top:1px solid var(--color-border);padding-top:6px}.node-popup-item{font-size:var(--text-xs);margin-bottom:var(--space-1);line-height:1.4}.layer-panel{position:absolute;top:var(--space-2);right:var(--space-2);z-index:10;background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:var(--glass-border);border-radius:var(--radius-lg);width:130px;max-height:calc(100% - 70px);overflow-y:auto;font-size:var(--text-xs);color:var(--color-text-secondary)}.layer-panel-header{display:flex;align-items:center;justify-content:space-between;padding:6px var(--space-2);border-bottom:1px solid var(--color-border);font-size:var(--text-xs);font-weight:var(--weight-semibold);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.layer-panel-clear{background:none;border:none;color:var(--color-warning);font-size:9px;cursor:pointer;padding:1px var(--space-1);border-radius:3px;font-family:var(--font-sans)}.layer-panel-clear:hover{background:#d4a05626}.layer-group{border-bottom:1px solid var(--color-border)}.layer-group:last-child{border-bottom:none}.layer-group-label{padding:var(--space-1) var(--space-2) 2px;font-size:9px;font-weight:var(--weight-semibold);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.03em}.layer-item{display:flex;align-items:center;gap:6px;width:100%;padding:3px var(--space-2);background:none;border:none;color:var(--color-text-primary);font-size:var(--text-xs);cursor:pointer;font-family:var(--font-sans);text-align:left;transition:background .1s,opacity var(--transition-fast)}.layer-item:hover{background:var(--color-interactive-hover)}.layer-item.active{background:var(--color-accent-subtle);color:var(--color-text-primary)}.layer-item.dimmed{opacity:.35}.layer-swatch{width:8px;height:8px;display:inline-block;flex-shrink:0}.layer-line-swatch{width:14px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.layer-label{flex:1;min-width:0;white-space:nowrap}.layer-eye{color:var(--color-accent);font-size:var(--text-sm);flex-shrink:0}.mode-toolbar{position:absolute;left:12px;z-index:10;display:flex;flex-direction:column;gap:var(--space-1);background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);padding:var(--space-1);border-radius:var(--radius-md);border:var(--glass-border)}.mode-toolbar-btn{width:30px;height:30px;border:1px solid transparent;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast)}.mode-toolbar-btn:hover{background:var(--color-interactive-hover);color:var(--color-text-primary)}.mode-toolbar-btn.active{background:var(--color-accent-subtle);border-color:var(--color-border-active);color:var(--color-text-primary)}.graph-container.box-select-mode{cursor:crosshair}.graph-container.box-select-space{cursor:grab}.box-select-rect{position:absolute;border:1px solid var(--color-accent);background:#7b8cff1f;pointer-events:none;z-index:6}.box-select-indicator{position:absolute;top:var(--space-2);left:50%;transform:translate(-50%);z-index:11;background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);padding:5px var(--space-3);border-radius:var(--radius-md);border:1px solid var(--color-accent);font-size:var(--text-sm);color:var(--color-text-primary);display:flex;align-items:center;gap:10px;white-space:nowrap}.box-select-count{color:var(--color-accent);font-weight:var(--weight-semibold)}.box-select-create-btn{padding:2px var(--space-2);background:var(--color-accent);border:none;border-radius:var(--radius-sm);color:#fff;font-size:var(--text-xs);cursor:pointer;font-family:var(--font-sans);transition:opacity var(--transition-fast)}.box-select-create-btn:hover{opacity:.85}.box-select-clear-btn{padding:2px var(--space-2);background:transparent;border:1px solid var(--color-border-hover);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-xs);cursor:pointer;font-family:var(--font-sans);transition:background var(--transition-fast)}.box-select-clear-btn:hover{background:var(--color-interactive-hover)}.custom-group-delete{color:var(--color-text-muted);font-size:var(--text-xs);cursor:pointer;padding:0 var(--space-1);border-radius:3px;flex-shrink:0}.custom-group-delete:hover{color:var(--color-error);background:#ff00001a}.loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0a0a1acc;z-index:10}.loading-text{font-size:var(--text-lg);color:var(--color-accent)}.empty-state{display:flex;align-items:center;justify-content:center;flex:1;color:var(--color-text-muted);font-size:var(--text-md);text-align:center;padding:var(--space-10);line-height:1.6}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-canvas)}.login-card{text-align:center;padding:var(--space-12) var(--space-10);background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:var(--glass-border);border-radius:var(--radius-xl);max-width:380px;width:100%}.login-title{font-size:var(--text-2xl);font-weight:var(--weight-bold);color:var(--color-accent);margin-bottom:var(--space-2);letter-spacing:-.02em}.login-subtitle{font-size:var(--text-md);color:var(--color-text-secondary);margin-bottom:var(--space-8)}.login-btn{display:flex;align-items:center;justify-content:center;width:100%;padding:10px var(--space-4);border:1px solid var(--color-border-hover);border-radius:var(--radius-md);background:var(--color-btn-secondary);color:var(--color-text-primary);font-size:var(--text-md);cursor:pointer;font-family:var(--font-sans);transition:background var(--transition-fast),box-shadow var(--transition-fast)}.login-btn:hover:not(:disabled){background:var(--color-btn-secondary-hover);box-shadow:var(--shadow-glow)}.login-btn:disabled{opacity:.5;cursor:not-allowed}.login-error{margin-top:var(--space-4);font-size:var(--text-base);color:var(--color-error)}.billing-panel{padding:var(--space-3) var(--space-4)}.billing-plan-badge{font-size:12px;font-weight:var(--weight-semibold);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-2)}.billing-quota-label{font-size:var(--text-sm);color:var(--color-text-secondary);margin-bottom:var(--space-1)}.billing-quota-bar{height:6px;background:#7878b426;border-radius:3px;overflow:hidden}.billing-quota-fill{height:100%;border-radius:3px;transition:width .3s,background-color .3s}.billing-warn{font-size:var(--text-xs);color:var(--color-warning);margin-top:var(--space-1)}.billing-blocked{font-size:var(--text-xs);color:var(--color-error);margin-top:var(--space-1)}.billing-upgrade-btn,.billing-manage-btn{margin-top:var(--space-2);width:100%;padding:6px var(--space-3);border:none;border-radius:var(--radius-sm);font-size:12px;cursor:pointer;font-family:var(--font-sans);transition:background var(--transition-fast),box-shadow var(--transition-fast)}.billing-upgrade-btn{background:var(--color-accent);color:#fff}.billing-upgrade-btn:hover{opacity:.85;box-shadow:var(--shadow-glow)}.billing-manage-btn{background:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border)}.billing-manage-btn:hover{background:var(--color-interactive-hover)}