/* Rote Fehlermeldungen: Leuchten im Sekundentakt */
@keyframes error-glow {
    0%,
    100% {
        text-shadow: 0 0 2px rgba(248, 113, 113, 0.3);
        opacity: 0.75;
    }
    50% {
        text-shadow:
            0 0 6px rgba(248, 113, 113, 0.9),
            0 0 14px rgba(248, 113, 113, 0.5);
        opacity: 1;
    }
}

.error-glow {
    animation: error-glow 1s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    .error-glow {
        animation: none;
        text-shadow: 0 0 6px rgba(248, 113, 113, 0.7);
    }
}