.symbol-palette{flex-wrap:wrap;gap:10px;padding:8px 0;display:flex}.palette-item{background:var(--bg);border:1.5px solid var(--border);cursor:grab;-webkit-user-select:none;user-select:none;border-radius:8px;flex-direction:column;align-items:center;gap:6px;min-width:90px;padding:10px 14px;transition:all .15s;display:flex}.palette-item:hover{border-color:var(--green);background:var(--green-light);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.palette-item:active{cursor:grabbing}.palette-item svg{width:64px;height:40px}.palette-item .label{color:var(--text-secondary);font-size:.72rem;font-weight:600}.canvas-container{cursor:crosshair;background:#fafbfc radial-gradient(circle,#ddd 1px,#0000 1px) 0 0/20px 20px;min-height:600px;position:relative;overflow:auto}.fc-shape{cursor:move;-webkit-user-select:none;user-select:none}.fc-shape:hover .shape-outline{stroke:var(--green);stroke-width:2.5px}.fc-shape.selected .shape-outline{stroke:var(--blue);stroke-width:2.5px;stroke-dasharray:6 3}.shape-outline{fill:#fff;stroke:#334155;stroke-width:2px;transition:stroke .15s}.shape-text{fill:#1e293b;text-anchor:middle;dominant-baseline:central;pointer-events:none;font-family:Inter,sans-serif;font-size:12px}.fc-connection{stroke:#475569;stroke-width:2px;fill:none;marker-end:url(#arrowhead)}.fc-connection:hover{stroke:var(--red);stroke-width:3px;cursor:pointer}.fc-connection-label{fill:#059669;font-family:Inter,sans-serif;font-size:11px;font-weight:600}.connection-anchor{fill:var(--green);stroke:#fff;stroke-width:2px;cursor:crosshair;opacity:0;r:6;transition:opacity .15s}.fc-shape:hover .connection-anchor{opacity:1}.text-edit-overlay{border:2px solid var(--blue);text-align:center;z-index:100;background:#fff;border-radius:6px;outline:none;min-width:80px;padding:4px 8px;font-family:Inter,sans-serif;font-size:12px;position:absolute;box-shadow:0 4px 12px #00000026}.subroutine-inner{stroke:#334155;stroke-width:2px;fill:none}@media (width<=768px){.palette-item{min-width:70px;padding:8px 10px}.palette-item svg{width:48px;height:32px}.palette-item .label{font-size:.65rem}.canvas-container{min-height:450px}}