*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d0d14;--surface:#16161f;--surface2:#1e1e2a;--border:#2a2a3a;--accent:#6366f1;--accent-dim:#6366f140;--accent2:#a855f7;--ok:#22c55e;--warn:#f59e0b;--text:#e2e8f0;--text-dim:#94a3b8;--text-faint:#475569;--radius:6px;--font-mono:"JetBrains Mono", "Fira Code", "Cascadia Code", monospace}html,body{background:var(--bg);height:100%;color:var(--text);font-family:system-ui,sans-serif;font-size:14px;line-height:1.5}#app{flex-direction:column;height:100vh;display:flex;overflow:hidden}#toolbar{background:var(--surface);border-bottom:1px solid var(--border);flex:none;align-items:center;gap:8px;min-height:48px;padding:8px 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10px;font-size:12px;font-weight:500;transition:all .15s;display:inline-flex}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent2);border-color:var(--accent2)}.btn.danger:hover{color:#ef4444;border-color:#ef4444}.btn:disabled{opacity:.4;pointer-events:none}.toolbar-spacer{flex:1}.loop-label{color:var(--text-dim);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:5px;font-size:12px;display:flex}.empty-state{color:var(--text-faint);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;height:100%;padding:40px;display:flex}.empty-state svg{opacity:.3}.empty-state p{font-size:13px;line-height:1.6}.svg-canvas-wrap{border-radius:var(--radius);box-shadow:0 0 0 1px var(--border), 0 8px 32px #0006;background:#fff;position:relative;overflow:visible}.svg-canvas-wrap svg [id]{cursor:pointer;transition:filter 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