/* ==================== ANIMATIONS ==================== */

/* ==================== KEYFRAME ANIMATIONS ==================== */

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

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleUp {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

/* Slide Animations */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Rotation Animations */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

/* Bounce Animations */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

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

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

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(139, 92, 246, 0.6);
    }
}

/* Shimmer Animation */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

/* Float Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    33% {
        transform: translateY(-20px) translateX(10px);
    }
    66% {
        transform: translateY(10px) translateX(-10px);
    }
}

@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-30px);
    }
}

/* Wave Animation */
@keyframes wave {
    0%, 100% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(20deg);
    }
    75% {
        transform: rotate(-20deg);
    }
}

/* Shake Animation */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

/* Typewriter Animation */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

/* Loading Spinner */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Progress Bar */
@keyframes progress {
    0% {
        width: 0%;
    }
    100% {
        width: 100%;
    }
}

/* Ripple Effect */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* Glow Pulse */
@keyframes glowPulse {
    0%, 100% {
        filter: drop-shadow(0 0 5px rgba(139, 92, 246, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.8));
    }
}

/* Background Pan */
@keyframes pan {
    0% {
        background-position: 0% center;
    }
    100% {
        background-position: -200% center;
    }
}

/* ==================== UTILITY ANIMATION CLASSES ==================== */

/* Fade In Classes */
.animate-fadeIn {
    animation: fadeIn 0.6s ease-out;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fadeInDown {
    animation: fadeInDown 0.6s ease-out;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-fadeInRight {
    animation: fadeInRight 0.6s ease-out;
}

/* Scale Classes */
.animate-scaleIn {
    animation: scaleIn 0.4s ease-out;
}

.animate-bounce {
    animation: bounce 1s ease-in-out infinite;
}

.animate-bounceIn {
    animation: bounceIn 0.6s ease-out;
}

/* Pulse Classes */
.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

/* Float Classes */
.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-floatSlow {
    animation: floatSlow 8s ease-in-out infinite;
}

/* Rotation Classes */
.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-rotate {
    animation: rotate 20s linear infinite;
}

/* Shimmer Effect */
.animate-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;
}

/* Gradient Shift */
.animate-gradient {
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

/* ==================== HOVER ANIMATIONS ==================== */

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

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

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

.hover-glow:hover {
    filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.6));
}

.hover-brightness {
    transition: filter var(--transition-base);
}

.hover-brightness:hover {
    filter: brightness(1.1);
}

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

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

.hover-shake:hover {
    animation: shake 0.5s;
}

/* ==================== SCROLL ANIMATIONS ==================== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

.scroll-fade {
    opacity: 0;
    transition: opacity 1s ease-out;
}

.scroll-fade.active {
    opacity: 1;
}

.scroll-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* ==================== LOADING ANIMATIONS ==================== */

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-dots {
    display: flex;
    gap: 8px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out;
}

.loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

/* ==================== TEXT ANIMATIONS ==================== */

.text-gradient-animate {
    background: linear-gradient(
        90deg,
        var(--color-primary),
        var(--color-secondary),
        var(--color-accent),
        var(--color-primary)
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s linear infinite;
}

.text-typewriter {
    overflow: hidden;
    border-right: 2px solid var(--color-primary);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

/* ==================== BUTTON ANIMATIONS ==================== */

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

.btn-ripple::after {
    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;
}

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

.btn-slide {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
    z-index: -1;
}

.btn-slide:hover::before {
    left: 100%;
}

/* ==================== CARD ANIMATIONS ==================== */

.card-flip {
    perspective: 1000px;
}

.card-flip-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card-flip:hover .card-flip-inner {
    transform: rotateY(180deg);
}

.card-flip-front,
.card-flip-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.card-flip-back {
    transform: rotateY(180deg);
}

/* ==================== PROGRESS ANIMATIONS ==================== */

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    animation: progress 2s ease-out;
}

/* ==================== SKELETON LOADING ==================== */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 25%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 2rem;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-image {
    height: 200px;
    width: 100%;
}

/* ==================== NOTIFICATION ANIMATIONS ==================== */

.notification-enter {
    animation: slideInRight 0.4s ease-out;
}

.notification-exit {
    animation: slideInRight 0.4s ease-out reverse;
}

/* ==================== MODAL ANIMATIONS ==================== */

.modal-backdrop {
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    animation: scaleIn 0.3s ease-out;
}

.modal-slide {
    animation: slideInUp 0.4s ease-out;
}

/* ==================== PERFORMANCE OPTIMIZATIONS ==================== */

/* Use GPU acceleration for animations */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* 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;
    }
}

/* ==================== STAGGER ANIMATIONS ==================== */

.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

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

/* ==================== PARTICLE EFFECTS ==================== */

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

@keyframes particleFloat {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(0);
        opacity: 0;
    }
}

.particle-animate {
    animation: particleFloat 3s ease-out forwards;
}

/* ==================== CONTINUOUS ANIMATIONS ==================== */

.continuous-rotate {
    animation: rotate 10s linear infinite;
}

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

.continuous-bounce {
    animation: bounce 2s ease-in-out infinite;
}

.continuous-float {
    animation: float 8s ease-in-out infinite;
}

/* ==================== ENTRANCE ANIMATIONS ==================== */

.entrance-1 {
    animation: fadeInUp 0.6s ease-out 0.1s backwards;
}

.entrance-2 {
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.entrance-3 {
    animation: fadeInUp 0.6s ease-out 0.3s backwards;
}

.entrance-4 {
    animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

/* ==================== INTERACTION FEEDBACK ==================== */

.click-feedback {
    transition: transform 0.1s ease;
}

.click-feedback:active {
    transform: scale(0.95);
}

.tap-highlight {
    -webkit-tap-highlight-color: rgba(139, 92, 246, 0.2);
}