:root{--bg-main: #f1f5f9;--bg-card: #ffffff;--bg-elevated: #f8fafc;--bg-input: #ffffff;--border-color: #e2e8f0;--border-subtle: #e2e8f0;--border-highlight: #cbd5e1;--text-primary: #0f172a;--text-secondary: #334155;--text-muted: #64748b;--accent-blue: #2563eb;--accent-cyan: #0284c7;--accent-green: #059669;--accent-red: #dc2626;--accent-amber: #d97706;--accent-purple: #7c3aed;--focus-ring: #2563eb;--shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, 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