/* Animation Utilities */
@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 zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-180deg) scale(0.8);
    }
    to {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -10px, 0);
    }
    70% {
        transform: translate3d(0, -5px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-2px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(2px);
    }
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.1);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.1);
    }
    70% {
        transform: scale(1);
    }
}

/* Utility Animation Classes */
.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;
}

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

.animate-slideInLeft {
    animation: slideInLeft 0.8s ease-out;
}

.animate-slideInRight {
    animation: slideInRight 0.8s ease-out;
}

.animate-rotateIn {
    animation: rotateIn 0.8s ease-out;
}

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

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

.animate-heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite;
}

/* Delayed Animations */
.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; }

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

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

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

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

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

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

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

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

.hover-slide {
    position: relative;
    overflow: hidden;
}

.hover-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 ease;
}

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

/* Infinite Animations */
.infinite-float {
    animation: floatInfinite 3s ease-in-out infinite;
}

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

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

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

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

@keyframes pulseInfinite {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Stagger Animation for Lists */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out 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; }
.stagger-children > *:nth-child(7) { animation-delay: 0.7s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.8s; }

/* Text Animations */
.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--primary-color);
    white-space: nowrap;
    margin: 0 auto;
    animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

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

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--primary-color); }
}

.gradient-animation {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Counter Animation */
.counter {
    font-weight: 700;
    font-size: 2rem;
}

/* Progress Bar Animation */
.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transform: translateX(-100%);
    transition: transform 1s ease-out;
}

.progress-fill.animate {
    transform: translateX(0);
}

/* Morphing Shapes */
.morphing-shape {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 30%;
    animation: morph 4s ease-in-out infinite;
}

@keyframes morph {
    0%, 100% {
        border-radius: 30%;
        transform: rotate(0deg);
    }
    25% {
        border-radius: 50%;
        transform: rotate(90deg);
    }
    50% {
        border-radius: 10%;
        transform: rotate(180deg);
    }
    75% {
        border-radius: 40%;
        transform: rotate(270deg);
    }
}

/* Particle Effect */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(102, 126, 234, 0.6);
    border-radius: 50%;
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0;
    }
    10%, 90% {
        opacity: 1;
    }
    50% {
        transform: translateY(-100vh) rotate(360deg);
    }
}

/* Loading Animations */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.dots-loading {
    display: inline-block;
}

.dots-loading::after {
    content: '';
    animation: dotsLoading 1.5s infinite;
}

@keyframes dotsLoading {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60%, 100% {
        content: '...';
    }
}

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

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

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

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

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

/* Hover Effects for Cards */
.card-hover-effect {
    position: relative;
    transition: all 0.3s ease;
}

.card-hover-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: inherit;
    z-index: -1;
}

.card-hover-effect:hover::before {
    opacity: 0.1;
}

.card-hover-effect:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Entrance Animations with CSS Custom Properties */
.entrance-animation {
    --entrance-duration: 0.8s;
    --entrance-delay: 0s;
    --entrance-distance: 30px;
    
    opacity: 0;
    transform: translateY(var(--entrance-distance));
    animation: entranceAnimation var(--entrance-duration) ease-out var(--entrance-delay) forwards;
}

@keyframes entranceAnimation {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sophisticated Hover States */
.sophisticated-hover {
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.sophisticated-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    border-radius: inherit;
}

.sophisticated-hover:hover::before {
    transform: translateX(100%);
}

.sophisticated-hover:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 10px 25px rgba(0,0,0,0.1),
        0 20px 40px rgba(102, 126, 234, 0.1);
}