:root{--bg-base:#f7f7f5;--bg-surface:#fff;--bg-elevated:#efefed;--border:#e0e0dc;--text-primary:#111;--text-secondary:#666660;--text-muted:#aaa;--accent:#2563eb;--accent-subtle:#eff6ff;--danger:#dc2626;--success:#16a34a;--folder-fill:#fff;--mind-edge:#6f7a90;--mind-edge-label:#4a5568;--mind-canvas:#f3f6fb;--mind-grid-dot:#6374912e;--mind-card-text:#17202f;--mind-card-muted:#5e6b82;--mind-card-line:#4d5b7524;--mind-selected-ring:#3b82f638;--mind-card-shadow:0 14px 30px #3a4a631f;--mind-card-shadow-hover:0 22px 46px 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