:root{--color-primary: #4F46E5;--color-primary-hover: #4338CA;--color-secondary: #10B981;--color-accent: #F59E0B;--color-background: #F9FAFB;--color-surface: #FFFFFF;--color-text-primary: #111827;--color-text-secondary: #6B7280;--color-border: #E5E7EB;--color-error: #EF4444;--color-success: #10B981;--color-warning: #F59E0B;--color-info: #3B82F6;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--font-ui: "DM Sans", "Noto Sans SC", system-ui, -apple-system, sans-serif;--font-reading: "Source Serif 4", "Noto Sans SC", Georgia, serif;--font-display: "DM Sans", system-ui, sans-serif;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-card: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-card-hover: 0 4px 12px rgba(0,0,0,.1), 0 2px 4px rgba(0,0,0,.06);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--sidebar-width: 280px;--sidebar-collapsed: 80px;--header-height: 64px}[data-theme=dark]{--color-primary: #818CF8;--color-primary-hover: #A5B4FC;--color-secondary: #34D399;--color-accent: #FBBF24;--color-background: #0f172a;--color-surface: #1e293b;--color-text-primary: #f1f5f9;--color-text-secondary: #94a3b8;--color-border: #334155;--color-error: #fb7185;--color-success: #34D399;--color-warning: #FBBF24;--color-info: #60A5FA;--shadow-card: 0 1px 3px rgba(0,0,0,.2), 0 1px 2px rgba(0,0,0,.15);--shadow-card-hover: 0 4px 12px rgba(0,0,0,.3), 0 2px 4px 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