/* Animations & Transitions */

/* Keyframe Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -50px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.fade-in-up {
    animation: slideUp 0.8s ease-out forwards;
    opacity: 0;
}

.fade-in-up.delay-1 {
    animation-delay: 0.2s;
}

.fade-in-up.delay-2 {
    animation-delay: 0.4s;
}

.fade-in-up.delay-3 {
    animation-delay: 0.6s;
}

.fade-in-up.delay-4 {
    animation-delay: 0.8s;
}

.slide-in {
    animation: slideIn 0.6s ease-out forwards;
}

.slide-down {
    animation: slideDown 0.6s ease-out forwards;
}

.scale-in {
    animation: scaleIn 0.5s ease-out forwards;
}

/* Hover Animations */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-glow {
    transition: all var(--transition-base);
}

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

.hover-scale {
    transition: transform var(--transition-fast);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-rotate {
    transition: transform var(--transition-base);
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

/* Loading Animations */
.loading-spinner {
    animation: spin 1s linear infinite;
}

.loading-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.loading-shimmer {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* Transition Utilities */
.transition-all {
    transition: all var(--transition-base);
}

.transition-fast {
    transition: all var(--transition-fast);
}

.transition-slow {
    transition: all var(--transition-slow);
}

.transition-colors {
    transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.transition-transform {
    transition: transform var(--transition-base);
}

.transition-opacity {
    transition: opacity var(--transition-base);
}

/* Smooth Entrance Animations */
.entrance-1 {
    animation: slideUp 0.6s ease-out 0.1s both;
}

.entrance-2 {
    animation: slideUp 0.6s ease-out 0.2s both;
}

.entrance-3 {
    animation: slideUp 0.6s ease-out 0.3s both;
}

.entrance-4 {
    animation: slideUp 0.6s ease-out 0.4s both;
}

.entrance-5 {
    animation: slideUp 0.6s ease-out 0.5s both;
}

.entrance-6 {
    animation: slideUp 0.6s ease-out 0.6s both;
}

/* Interactive Animations */
.interactive-card {
    position: relative;
    transition: all var(--transition-base);
}

.interactive-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(99, 102, 241, 0.1), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.interactive-card:hover::before {
    opacity: 1;
}

.interactive-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

/* Smooth Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Parallax Effect */
.parallax-layer {
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Morphing Shapes */
@keyframes morph {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
}

.morphing-shape {
    animation: morph 8s ease-in-out infinite;
}

/* Text Animations */
@keyframes text-reveal {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.text-reveal span {
    display: inline-block;
    animation: text-reveal 0.6s ease-out forwards;
}

.text-reveal span:nth-child(1) { animation-delay: 0.1s; }
.text-reveal span:nth-child(2) { animation-delay: 0.2s; }
.text-reveal span:nth-child(3) { animation-delay: 0.3s; }
.text-reveal span:nth-child(4) { animation-delay: 0.4s; }
.text-reveal span:nth-child(5) { animation-delay: 0.5s; }

/* Button Hover Effects */
.btn-hover-fill {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-hover-fill::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: -1;
}

.btn-hover-fill:hover::before {
    transform: translateX(0);
}

/* Card Stack Animation */
@keyframes card-stack {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(-20px) scale(0.95);
        opacity: 0.8;
    }
}

.card-stack-item:nth-child(2) {
    animation: card-stack 0.3s ease-out forwards;
}

/* Gradient Animation */
@keyframes gradient-animation {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.animated-gradient {
    background: linear-gradient(270deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 400% 400%;
    animation: gradient-animation 10s ease infinite;
}

/* Typewriter Effect */
@keyframes typewriter {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.typewriter {
    overflow: hidden;
    white-space: nowrap;
    animation: typewriter 3s steps(40) 1s both;
}

/* Blur In Animation */
@keyframes blur-in {
    from {
        filter: blur(20px);
        opacity: 0;
    }
    to {
        filter: blur(0);
        opacity: 1;
    }
}

.blur-in {
    animation: blur-in 1s ease-out forwards;
}

/* Bounce In Animation */
@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

.bounce-in {
    animation: bounce-in 0.6s ease-out forwards;
}

/* Flip Animation */
@keyframes flip {
    from {
        transform: perspective(400px) rotateY(0);
    }
    to {
        transform: perspective(400px) rotateY(360deg);
    }
}

.flip {
    animation: flip 0.6s ease-in-out;
}

/* Shake Animation */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-10px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(10px);
    }
}

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

/* Smooth Page Transitions */
.page-transition-enter {
    opacity: 0;
    transform: translateY(30px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.4s ease-out;
}

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

.page-transition-exit-active {
    opacity: 0;
    transform: translateY(-30px);
    transition: all 0.4s ease-in;
}

/* Continuous Float Animation */
@keyframes continuous-float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* Neon Glow Animation */
@keyframes neon-glow {
    0%, 100% {
        text-shadow: 
            0 0 10px rgba(99, 102, 241, 0.5),
            0 0 20px rgba(99, 102, 241, 0.5),
            0 0 30px rgba(99, 102, 241, 0.5);
    }
    50% {
        text-shadow: 
            0 0 20px rgba(99, 102, 241, 0.8),
            0 0 30px rgba(99, 102, 241, 0.8),
            0 0 40px rgba(99, 102, 241, 0.8);
    }
}

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

/* Focus Ring Animation */
@keyframes focus-ring {
    0% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
    }
    100% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

.focus-ring {
    animation: focus-ring 1.5s ease-out infinite;
}

/* Smooth Transform Origin */
.transform-center {
    transform-origin: center;
}

.transform-top {
    transform-origin: top;
}

.transform-bottom {
    transform-origin: bottom;
}

.transform-left {
    transform-origin: left;
}

.transform-right {
    transform-origin: right;
}

/* Hardware Acceleration */
.gpu-accelerated {
    transform: translateZ(0);
    will-change: transform;
    backface-visibility: hidden;
}

/* Reduce Motion for Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}