@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap";
:root{--color-bg:#f0f4ff;--color-surface:#fff;--color-surface-2:#f8faff;--color-node-bg:#fff;--color-node-border:#d6e0ff;--color-border:#e2e8f8;--color-field-bg:#f4f7ff;--color-field-border:#d0d9f0;--blue-50:#eef3ff;--blue-100:#d6e0ff;--blue-200:#adc2ff;--blue-400:#5b84f5;--blue-500:#3a67f0;--blue-600:#2952d9;--color-input:#3a67f0;--color-process:#7c5cf5;--color-gen:#0ea87a;--color-output:#f07a3a;--color-text:#1a2240;--color-text-muted:#7a8ab0;--color-text-subtle:#4a5880;--font-ui:"Inter", system-ui, sans-serif;--font-mono:"JetBrains Mono", monospace;--node-radius:10px;--node-shadow:0 1px 4px #3c50a014, 0 4px 16px #3c50a00f;--node-shadow-hover:0 2px 8px #3c50a01f, 0 8px 24px #3c50a01a}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--color-bg);width:100%;height:100%;color:var(--color-text);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;overflow:hidden}.react-flow__background{background:var(--color-bg)}.react-flow__background pattern circle{fill:#c8d4f0}.react-flow__edge-path{stroke-width:1.5px;opacity:.65}.react-flow__handle{transition:transform .15s;width:10px!important;height:10px!important;box-shadow:0 0 0 1px var(--color-field-border)!important;border:2px solid #fff!important;border-radius:50%!important}.react-flow__handle:hover{transform:scale(1.4)}.react-flow__controls{border:1px solid var(--color-border);box-shadow:var(--node-shadow);background:#fff;border-radius:8px}.react-flow__controls-button{border-bottom:1px solid var(--color-border);color:var(--color-text-muted);background:0 0}.react-flow__controls-button:hover{background:var(--blue-50)}.react-flow__minimap{border:1px solid var(--color-border);background:#fff;border-radius:8px}@keyframes edge-flow{0%{stroke-dashoffset:20px}to{stroke-dashoffset:0}}.react-flow__edge.animated .react-flow__edge-path{stroke-dasharray:4 6;animation:1.2s linear infinite edge-flow}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-node-border);border-radius:2px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.app-shell{grid-template-rows:52px 1fr;grid-template-areas:"topbar""canvas";height:100vh;display:grid;overflow:hidden}.topbar{background:var(--color-surface);border-bottom:1px solid var(--color-border);z-index:100;grid-area:topbar;align-items:center;gap:16px;padding:0 20px;display:flex}.topbar-logo{font-family:var(--font-mono);letter-spacing:.06em;color:var(--color-text);font-size:13px;font-weight:600}.topbar-logo span{color:var(--blue-500)}.topbar-divider{background:var(--color-border);width:1px;height:20px}.topbar-badge{font-size:10px;font-family:var(--font-mono);border-radius:20px;padding:2px 8px;font-weight:500}.topbar-actions{gap:8px;margin-left:auto;display:flex}.sidebar{background:var(--color-surface);border-right:1px solid var(--color-border);flex-direction:column;grid-area:sidebar;gap:2px;padding:12px 8px;display:flex;overflow-y:auto}.sidebar-section-label{letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-muted);padding:10px 8px 4px;font-size:9px;font-weight:600}.palette-item{cursor:grab;color:var(--color-text-subtle);-webkit-user-select:none;user-select:none;border:1px solid #0000;border-radius:7px;align-items:center;gap:9px;padding:7px 10px;font-size:12px;transition:all .12s;display:flex}.palette-item:hover{background:var(--blue-50);border-color:var(--blue-100);color:var(--blue-500)}.palette-item:active{cursor:grabbing}.palette-icon{width:26px;height:26px;color:inherit;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.canvas-area{background:var(--color-bg);grid-area:canvas;position:relative;overflow:hidden}.floating-panel{z-index:200;border-radius:10px;flex-direction:column;display:flex;position:fixed;overflow:hidden;box-shadow:0 8px 32px #0000008c,0 0 0 1px #ffffff0f}.floating-panel-header{background:var(--color-surface-2);border-bottom:1px solid var(--color-border);cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0;align-items:center;gap:8px;height:32px;padding:0 10px 0 12px;display:flex}.floating-panel-header:active{cursor:grabbing}.floating-panel-title{letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-muted);flex:1;font-size:10px;font-weight:600}.floating-panel-toggle{width:22px;height:22px;color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;border-radius:5px;justify-content:center;align-items:center;transition:background .12s,color .12s;display:flex}.floating-panel-toggle:hover{color:var(--color-text);background:#ffffff12}.floating-panel-body{background:var(--color-surface);flex-direction:column;max-height:calc(100vh - 120px);display:flex;overflow:hidden}.floating-panel .sidebar,.floating-panel .inspector{border:none}.canvas-empty-hint{pointer-events:none;opacity:.4;z-index:1;flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex;position:absolute;inset:0}.canvas-empty-hint p{font-family:var(--font-mono);color:var(--color-text-muted);font-size:12px}.inspector{background:var(--color-surface);border-left:1px solid var(--color-border);flex-direction:column;grid-area:inspector;display:flex;overflow:hidden}.inspector-tabs{border-bottom:1px solid var(--color-border);background:var(--color-surface-2);flex-shrink:0;display:flex}.inspector-tab{color:var(--color-text-muted);cursor:pointer;text-align:center;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;padding:11px 6px;font-size:11px;font-weight:500;transition:all .12s}.inspector-tab:hover{color:var(--color-text)}.inspector-tab.active{color:var(--blue-500);border-bottom-color:var(--blue-500);background:var(--color-surface)}.inspector-body{flex-direction:column;flex:1;gap:10px;padding:14px;display:flex;overflow-y:auto}.inspector-empty{color:var(--color-text-muted);text-align:center;padding:36px 16px;font-size:12px;line-height:1.8}.inspector-section-title{letter-spacing:.1em;text-transform:uppercase;color:var(--color-text-muted);border-bottom:1px solid var(--color-border);padding-bottom:6px;font-size:9px;font-weight:600}.inspector-kv{flex-direction:column;gap:3px;display:flex}.inspector-key{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:10px}.inspector-value{font-size:11px;font-family:var(--font-mono);color:var(--color-text-subtle);background:var(--color-field-bg);border:1px solid var(--color-field-border);word-break:break-all;border-radius:5px;max-height:80px;padding:5px 8px;line-height:1.5;overflow-y:auto}.flow-edge-row{background:var(--color-field-bg);border:1px solid var(--color-field-border);border-radius:5px;align-items:center;gap:6px;padding:5px 8px;font-size:11px;display:flex}.history-strip{flex-direction:column;gap:4px;display:flex}.history-item{background:var(--color-field-bg);border:1px solid var(--color-field-border);cursor:pointer;border-radius:7px;align-items:center;gap:8px;padding:6px 8px;transition:border-color .12s;display:flex}.history-item:hover{border-color:var(--blue-400);background:var(--blue-50)}.history-thumb{object-fit:cover;border-radius:4px;flex-shrink:0;width:32px;height:32px}.history-meta{flex:1;min-width:0}.history-name{color:var(--color-text-subtle);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.history-time{color:var(--color-text-muted);font-size:9px;font-family:var(--font-mono)}