/* Animaciones y efectos visuales */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 5px rgba(0, 255, 0, 0.2); }
    50% { box-shadow: 0 0 20px rgba(0, 255, 0, 0.4); }
    100% { box-shadow: 0 0 5px rgba(0, 255, 0, 0.2); }
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.pulse-glow {
    animation: pulseGlow 2s infinite;
}

.gradient-bg {
    background: linear-gradient(45deg, var(--bg-dark), var(--card-bg-dark));
    background-size: 200% 200%;
    animation: gradientBG 15s ease infinite;
}