/* Shared accessibility primitives; app themes stay in their own stylesheets. */
:root { --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
body { font-family: var(--font-system); }
a { overflow-wrap: anywhere; }
a:focus-visible, summary:focus-visible { outline: 3px solid currentColor; outline-offset: 5px; }
.skip-link { position: fixed; z-index: 2000; top: -100px; left: 16px; padding: 12px 20px; background: #fff; color: #2c3e50; }
.skip-link:focus { top: 12px; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; animation: none !important; }
}