.auth-shell{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;padding:2rem;display:flex}.auth-fallback{align-items:center;gap:var(--space-md);text-align:center;max-width:40ch;color:var(--text-secondary);flex-direction:column;display:flex}.auth-fallback-text{margin:0;font-size:.95rem;line-height:1.6}.auth-fallback-text a{color:var(--accent-light);text-underline-offset:2px;text-decoration:underline}.auth-spinner{border:3px solid var(--border-hover);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite auth-spin}@keyframes auth-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.auth-spinner{animation-duration:2s}}