:root{color-scheme:dark;--bg:#000;--surface:#050505;--card:#0a0a0a;--accent:#9c27b0;--accent-strong:#e91e63;--accent-yellow:#ffc107;--success:#4caf50;--danger:#f44336;--muted:#b0b0b0;--text:#fff;--border:rgba(156,39,176,.3);--chart-bg:rgba(156,39,176,.15);--chart-line:#9c27b0;--glow:rgba(156,39,176,.5);--gradient-primary:linear-gradient(135deg,#9c27b0,#e91e63 50%,#ffc107);--gradient-button:linear-gradient(135deg,#9c27b0,#e91e63)}:root[data-theme=neon]{--bg:#0a0f1a;--surface:#111827;--card:#1f2937;--accent:#22d3ee;--accent-strong:#06b6d4;--accent-yellow:#06b6d4;--success:#22c55e;--danger:#f97316;--muted:#94a3b8;--text:#e2e8f0;--border:rgba(148,163,184,.2);--chart-bg:rgba(148,163,184,.1);--chart-line:#22d3ee;--glow:rgba(34,211,238,.3);--gradient-primary:linear-gradient(135deg,#22d3ee,#06b6d4 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