:root{--bg-primary:#f3f6fb;--bg-secondary:#fff;--bg-card:#fff;--bg-card-alt:#f8fafc;--bg-surface:#edf2f8;--bg-hover:#e7eef8;--border:#d8e2ef;--border-light:#c6d4e6;--text-primary:#13243d;--text-secondary:#526780;--text-muted:#788ba3;--accent:#2563eb;--accent-light:#3b82f6;--cyan:#06b6d4;--green:#059669;--green-light:#34d399;--yellow:#d97706;--orange:#f97316;--red:#dc2626;--red-light:#f87171;--purple:#7c3aed;--pink:#ec4899;--phase-r:#ef4444;--phase-s:#f59e0b;--phase-t:#3b82f6;--topbar-bg:#ffffffe6;--subtle-hover:#0f172a06;--chart-grid:#94a3b83d;--chart-axis:#64748b}:root[data-theme=energygrid]{--bg-primary:#060a13;--bg-secondary:#0c1220;--bg-card:#111a2e;--bg-card-alt:#0e1628;--bg-surface:#162036;--bg-hover:#1a2845;--border:#1c2d4a;--border-light:#243656;--text-primary:#f0f4f8;--text-secondary:#8899b4;--text-muted:#566a88;--accent:#3b82f6;--accent-light:#60a5fa;--cyan:#06b6d4;--green:#10b981;--green-light:#34d399;--yellow:#f59e0b;--orange:#f97316;--red:#ef4444;--red-light:#f87171;--purple:#8b5cf6;--pink:#ec4899;--topbar-bg:#060a13e0;--subtle-hover:#ffffff06;--chart-grid:#1c2d4a4d;--chart-axis:#7184a3}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Inter,sans-serif;transition:background-color 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