:root {
    --tc-primary: #2563eb;
    --tc-primary-hover: #1d4ed8;
    --tc-primary-soft: #dbeafe;

    --tc-success: #16a34a;
    --tc-success-soft: #dcfce7;
    --tc-warning: #d97706;
    --tc-warning-soft: #fef3c7;
    --tc-danger: #dc2626;
    --tc-danger-soft: #fee2e2;
    --tc-info: #0891b2;
    --tc-info-soft: #cffafe;

    --tc-bg: #f8fafc;
    --tc-bg-elevated: #ffffff;
    --tc-card: #ffffff;

    --tc-text: #0f172a;
    --tc-text-secondary: #334155;
    --tc-muted: #64748b;

    --tc-border: #e2e8f0;
    --tc-border-strong: #cbd5e1;

    --tc-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --tc-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --tc-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --tc-shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);

    --tc-radius-sm: 6px;
    --tc-radius: 10px;
    --tc-radius-lg: 16px;

    --tc-sidebar-width: 240px;
    --tc-topbar-height: 60px;

    --tc-font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}