:root{--color-primary:#1d4ed8;--color-text:#1f2937;--color-background:#ffffff;--color-surface:#f8fafc;--color-muted:#6b7280;--color-on-primary:#ffffff;--font-body:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--radius:8px;--content-width:48rem;color-scheme:light dark;}@media (prefers-color-scheme: dark){:root{--color-primary:#60a5fa;--color-text:#e5e7eb;--color-background:#0b0f17;--color-surface:#111827;--color-muted:#9ca3af;--color-on-primary:#111827;}}