/* Keyboard focus ring + skip link, shared by every page. */
:focus { outline: none; }
:focus-visible { outline: 2px solid #00ffcc !important; outline-offset: 2px; }
.skip-link {
    position: absolute; left: 0.75rem; top: -3rem; z-index: 10000;
    background: #000; color: #00ffcc; border: 1px solid #00ffcc;
    padding: 0.4rem 0.8rem; text-decoration: none;
    font-family: 'Menlo', 'Monaco', 'Consolas', 'Courier New', monospace; font-size: 0.8rem;
}
.skip-link:focus { top: 0.75rem; }
[tabindex="-1"]:focus { outline: none; }