/* CSS Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* Observer Initial States */
.animate-on-scroll {
    opacity: 0;
}

/* Classes applied by JS IntersectionObserver */
.animated.fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

.animated.slide-in-left {
    animation: slideInLeft 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

.animated.slide-in-right {
    animation: slideInRight 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

.animated.scale-in {
    animation: scaleIn 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

/* Delay modifiers */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }

/* Continuous animations */
.float-effect {
    animation: float 4s ease-in-out infinite;
}

/* Hover effects */
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 30px -10px rgba(108, 112, 235, 0.2);
}