:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text-primary: #0f172a;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--sidebar-width: 240px;--topbar-height: 56px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--color-primary-subtle: #eff6ff;--color-success-subtle: #f0fdf4;--color-warning-subtle: #fffbeb;--color-error-subtle: #fef2f2;--color-neutral-subtle: #f1f5f9;--color-success-text: #166534;--color-warning-text: #92400e;--color-error-text: #991b1b;--color-primary-text: #1e40af}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--color-bg);color:var(--color-text-primary);font-size:14px;line-height:1.5}