:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-secondary: #64748b;--color-success: #16a34a;--color-warning: #ca8a04;--color-error: #dc2626;--color-info: #0891b2;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--bg-nav: #1e293b;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--text-inverse: #ffffff;--border-color: #e2e8f0;--border-radius: 6px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--nav-width: 240px;--header-height: 56px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:14px;line-height:1.5}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica 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