/* Modern Animations - 2025 Best Practices */

/* Animation Keyframes */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translate3d(0, -30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translate3d(-30px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translate3d(30px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translate3d(0, 0, 0);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1) translate3d(0, 0, 0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-6px);
    }
    100% {
        transform: translateY(0px);
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.8);
    }
    100% {
        box-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
    }
}

/* Animation Classes */
.animate-slide-up {
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-down {
    animation: slideDown 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-left {
    animation: slideLeft 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-right {
    animation: slideRight 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in-scale {
    animation: fadeInScale 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-bounce-in {
    animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite alternate;
}

/* Loading Shimmer Effect */
.shimmer {
    background: linear-gradient(90deg, 
        var(--gray-200) 0%, 
        var(--gray-100) 50%, 
        var(--gray-200) 100%);
    background-size: 200px 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}

/* Smooth Transitions for Interactive Elements */
.smooth-hover {
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.smooth-hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Chart Animation Classes */
.chart-animate-in {
    animation: fadeInScale 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Staggered Animation Utilities */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.6s; }

/* Scroll-triggered Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-animate.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* Interactive Hover Effects */
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-scale:hover {
    transform: scale(1.02);
}

.hover-glow {
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

/* Button Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, 
        var(--gray-200) 25%, 
        var(--gray-100) 50%, 
        var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    border-radius: var(--radius-md);
}

/* Number Counter Animation */
.counter-animate {
    animation: bounceIn 1s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Page Transition Animations */
.page-enter {
    opacity: 0;
    transform: translateX(30px);
}

.page-enter-active {
    opacity: 1;
    transform: translateX(0);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.page-exit {
    opacity: 1;
    transform: translateX(0);
}

.page-exit-active {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Mobile-Specific Animations */
@media (max-width: 768px) {
    .animate-slide-up,
    .animate-slide-down,
    .animate-slide-left,
    .animate-slide-right {
        animation-duration: 0.4s;
    }
    
    .stagger-children > * {
        animation-duration: 0.4s;
    }
    
    .stagger-children > *:nth-child(n) {
        animation-delay: 0.05s;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .animate-pulse,
    .animate-float,
    .animate-glow {
        animation: none;
    }
}

/* High Performance Animations using transform and opacity only */
.gpu-accelerated {
    will-change: transform, opacity;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Notification Animations */
@keyframes slideLeft {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}