/* Core Animations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes bg-pulse {
    0% { opacity: 0.3; }
    100% { opacity: 0.5; }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.5; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.5); }
}

@keyframes buttonGlitch {
    0%, 90%, 100% { opacity: 0; transform: translate(0); }
    91%, 94% { opacity: 0.3; transform: translate(-1px, 1px); }
}

@keyframes underlineExpand {
    0% { width: 0; left: 50%; }
    100% { width: 100%; left: 0; }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes pulseGlow {
    0%, 100% { 
        box-shadow: 0 0 5px var(--primary-color);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 20px var(--primary-color), 0 0 30px var(--primary-color);
        transform: scale(1.05);
    }
}

/* Scroll-triggered animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

.rotate-in {
    opacity: 0;
    transform: rotate(-10deg) translateY(30px);
    transition: all 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-down {
    opacity: 0;
    transform: translateY(-50px);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide-down.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* Special animation classes */
.float-animation {
    animation: float 6s ease-in-out infinite;
}

.pulse-glow {
    animation: pulseGlow 3s ease-in-out infinite;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .scale-in,
    .rotate-in,
    .slide-up,
    .slide-down,
    .slide-in-left,
    .slide-in-right,
    .fade-in {
        transition: opacity 0.3s ease;
        transform: none;
    }
    
    .float-animation,
    .pulse-glow {
        animation: none;
    }
}