:root{--ch-color-primary:#2563eb;--ch-color-primary-strong:#1d4ed8;--ch-color-on-primary:#fff;--ch-color-surface:#fff;--ch-color-surface-muted:#f1f5f9;--ch-color-surface-subtle:#f8fafc;--ch-color-text-strong:#0f172a;--ch-color-text-heading:#334155;--ch-color-text-body:#475569;--ch-color-text-muted:#64748b;--ch-color-text-subtle:#94a3b8;--ch-color-border:#cbd5e1;--ch-color-border-subtle:#e2e8f0;--ch-color-ink:#111827;--ch-color-ink-soft:#1f2937;--ch-color-ink-body:#4b5563;--ch-color-ink-muted:#6b7280;--ch-color-ink-border:#e5e7eb}