*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d0f14;--bg2:#13161d;--bg3:#1a1e28;--border:#ffffff12;--border2:#ffffff21;--accent:#6c63ff;--accent2:#ff6584;--accent3:#43e97b;--text:#e8eaf2;--muted:#7a80a0;--card:#181c27;--node-start:#6c63ff;--node-mid:#1a1e28;--node-end:#ff6584;--shadow:0 8px 32px #00000080;--font-head:"Syne", sans-serif;--font-body:"DM Sans", sans-serif;--topbar-h:56px;--sidebar-w:280px;--edit-panel-w:320px;--sidebar-mobile-w:300px}[data-theme=light]{--bg:#f0f2f8;--bg2:#fff;--bg3:#e8eaf2;--border:#00000014;--border2:#00000024;--text:#1a1e28;--muted:#6b7080;--card:#fff;--shadow:0 8px 32px #6c63ff1a}html,body{height:100%;font-family:var(--font-body);background:var(--bg);color:var(--text);overflow:hidden}#root{flex-direction:column;height:100vh;display:flex}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:var(--bg2)}::-webkit-scrollbar-thumb{background:var(--accent);border-radius:3px}.topbar{height:var(--topbar-h);min-height:var(--topbar-h);background:var(--bg2);border-bottom:1px solid var(--border);z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);flex-shrink:0;align-items:center;gap:8px;padding:0 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