/* ==========================================
   Beijing Wanqi Trading Co., Ltd.
   Animations Stylesheet
   ========================================== */

/* Keyframe Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-50px) translateX(100px);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-150px) translateX(30px);
        opacity: 0.5;
    }
}

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

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

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

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

@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);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleInUp {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(30px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-20px);
    }
    60% {
        transform: translateX(-50%) translateY(-10px);
    }
}

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

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

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-200deg);
    }
    to {
        opacity: 1;
        transform: rotate(0deg);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

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

@keyframes drawLine {
    from {
        stroke-dashoffset: 1000;
    }
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

@keyframes moveInCircle {
    0% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(30px, -30px);
    }
    50% {
        transform: translate(0, -60px);
    }
    75% {
        transform: translate(-30px, -30px);
    }
    100% {
        transform: translate(0, 0);
    }
}

@keyframes flipIn {
    from {
        transform: perspective(400px) rotateX(90deg);
        opacity: 0;
    }
    40% {
        transform: perspective(400px) rotateX(-10deg);
    }
    70% {
        transform: perspective(400px) rotateX(10deg);
    }
    to {
        transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}

/* Animation Classes */
.animate-float {
    animation: float 15s ease-in-out infinite;
}

.animate-slide-up {
    animation: slideUp 1s ease forwards;
}

.animate-slide-down {
    animation: slideDown 1s ease forwards;
}

.animate-slide-left {
    animation: slideLeft 1s ease forwards;
}

.animate-slide-right {
    animation: slideRight 1s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 1s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 1s ease forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 1s ease forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 1s ease forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 1s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 0.8s ease forwards;
}

.animate-scale-in-up {
    animation: scaleInUp 0.8s ease forwards;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

.animate-bounce-in {
    animation: bounceIn 0.8s ease forwards;
}

.animate-rotate {
    animation: rotate 2s linear infinite;
}

.animate-rotate-in {
    animation: rotateIn 1s ease forwards;
}

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

.animate-shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.animate-gradient {
    background-size: 200% 200%;
    animation: gradientFlow 3s ease infinite;
}

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

.animate-draw-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: drawLine 3s ease forwards;
}

.animate-flip-in {
    animation: flipIn 0.8s ease forwards;
}

/* Delay Classes */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-900 { animation-delay: 0.9s; }
.delay-1000 { animation-delay: 1s; }

/* Duration Classes */
.duration-fast { animation-duration: 0.3s; }
.duration-normal { animation-duration: 0.5s; }
.duration-slow { animation-duration: 1s; }
.duration-slower { animation-duration: 1.5s; }
.duration-slowest { animation-duration: 2s; }

/* Hover Animations */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(0, 102, 204, 0.4);
}

.hover-rotate {
    transition: transform 0.3s ease;
}

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

.hover-float {
    transition: transform 0.3s ease;
}

.hover-float:hover {
    transform: translateY(-5px);
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s ease;
}

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

/* Loading Animations */
.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 102, 204, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: rotate 1s linear infinite;
}

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

.loading-dots span {
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: bounce 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0s; }

.loading-pulse {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--bg-light) 0%, var(--bg-white) 50%, var(--bg-light) 100%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* Counter Animation */
.counter {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* Progress Bar Animation */
.progress-bar {
    position: relative;
    width: 100%;
    height: 8px;
    background: var(--bg-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 1.5s ease;
    width: 0;
}

.progress-bar-fill.animate {
    width: var(--progress);
}

/* Marquee Animation */
.marquee {
    overflow: hidden;
    white-space: nowrap;
}

.marquee-content {
    display: inline-block;
    animation: marquee 20s linear infinite;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Parallax Effect */
.parallax {
    transform: translateZ(0);
    will-change: transform;
}

/* Modal Animations */
.modal-overlay {
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
}

.modal-overlay.active .modal-content {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* Page Transition */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    z-index: 9999;
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.page-transition.active {
    transform: translateX(0);
}

/* Stagger Animation for Lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.5s ease;
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }
.stagger-item:nth-child(7) { transition-delay: 0.7s; }
.stagger-item:nth-child(8) { transition-delay: 0.8s; }

/* Icon Animations */
.icon-spin {
    transition: transform 0.3s ease;
}

.icon-spin:hover {
    transform: rotate(360deg);
}

.icon-bounce {
    transition: transform 0.3s ease;
}

.icon-bounce:hover {
    animation: bounce 0.5s ease;
}

.icon-pulse {
    transition: transform 0.3s ease;
}

.icon-pulse:hover {
    animation: pulse 1s ease infinite;
}

/* Card Flip Animation */
.card-flip {
    perspective: 1000px;
}

.card-flip-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s;
    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);
}

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

.btn-ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, var(--primary-color) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.btn-ripple:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

/* Text Animations */
.text-reveal {
    overflow: hidden;
}

.text-reveal span {
    display: inline-block;
    transform: translateY(100%);
    animation: textReveal 0.8s ease forwards;
}

@keyframes textReveal {
    to {
        transform: translateY(0);
    }
}

.typing-effect {
    overflow: hidden;
    border-right: 3px solid var(--primary-color);
    white-space: nowrap;
    animation: typing 3s steps(40) forwards, blink 1s step-end infinite;
}

/* Background Animations */
.bg-gradient-animation {
    background: linear-gradient(-45deg, var(--primary-color), var(--secondary-color), #1a365d, var(--bg-dark));
    background-size: 400% 400%;
    animation: gradientFlow 15s ease infinite;
}

.bg-particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: floatParticle 20s linear infinite;
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}