/* Core Animations */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Reveals */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

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

.dust-layer {
    animation: backgroundDrift 60s linear infinite;
}

@keyframes ambientGlow {
    0% { box-shadow: 0 0 20px rgba(250, 204, 21, 0.15); }
    50% { box-shadow: 0 0 40px rgba(250, 204, 21, 0.3); }
    100% { box-shadow: 0 0 20px rgba(250, 204, 21, 0.15); }
}

.game-wrapper {
    animation: ambientGlow 4s infinite ease-in-out;
}

/* Hover Shimmer */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.3), transparent);
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::before {
    opacity: 1;
    animation: shimmer 1.5s infinite linear;
}