:root {
    --color-primary: #2563EB;
    --color-primary-hover: #1D4ED8;
    --color-background: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-sidebar: #0F172A;
    --color-border: #E5E7EB;
    --color-text-primary: #111827;
    --color-text-secondary: #6B7280;
    --color-success: #16A34A;
    --color-warning: #F59E0B;
    --color-danger: #DC2626;
}