:root{--blue: #2563eb;--blue-600: #2563eb;--blue-700: #1d4ed8;--amber: #f97316;--bg: #f8fafc;--surface: #ffffff;--surface-2: #f1f5f9;--border: #e2e8f0;--border-strong: #cbd5e1;--text: #1e293b;--text-muted: #64748b;--text-faint: #94a3b8;--green: #16a34a;--green-bg: #dcfce7;--red: #dc2626;--red-bg: #fee2e2;--amber-700: #b45309;--amber-bg: #fef3c7;--blue-bg: #dbeafe;--radius: 8px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow: 0 4px 12px rgba(15, 23, 42, .08);--sidebar-w: 232px;--header-h: 56px;--mono: "Fira Code", ui-monospace, SFMono-Regular, monospace;--sans: "Fira Sans", system-ui, -apple-system, 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