/* ================================
   Animations & Keyframes
   ================================ */

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

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

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

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

/* Float */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

/* Spin (for loader icons) */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

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

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

/* Glow */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--color-primary-50);
    }
    50% {
        box-shadow: 0 0 20px var(--color-primary-70), 0 0 30px var(--color-primary-50);
    }
}

/* Ripple */
@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

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

/* Zoom In */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Bounce */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-15px);
    }
    60% {
        transform: translateY(-7px);
    }
}

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

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

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

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

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

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

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

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

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

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

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

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

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

.stagger-container > * {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

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

/* ============================================
   SCROLL REVEAL (Works with JS)
   ============================================ */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all var(--transition-slow);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all var(--transition-slow);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all var(--transition-slow);
}

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

/* ============================================
   HOVER EFFECTS
   ============================================ */

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

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

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

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

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

.hover-glow:hover {
    box-shadow: 0 0 20px var(--color-primary-50);
}

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

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

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

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: rotate 1s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 80px;
    height: 80px;
    border-width: 6px;
}

/* Dots Loading */
.loading-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.loading-dots span {
    width: 10px;
    height: 10px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    animation: bounce 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ============================================
   TRANSITION UTILITIES
   ============================================ */

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

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

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

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

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

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

/* ============================================
   PAGE TRANSITIONS
   ============================================ */

.page-transition {
    animation: fadeIn 0.4s ease-out;
}

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

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

/* ============================================
   PARALLAX EFFECT (Works with JS)
   ============================================ */

.parallax {
    transition: transform 0.3s ease-out;
}

/* ============================================
   IMAGE ZOOM ON HOVER
   ============================================ */

.image-zoom-container {
    overflow: hidden;
    border-radius: var(--radius-xl);
}

.image-zoom {
    transition: transform var(--transition-slow);
}

.image-zoom-container:hover .image-zoom {
    transform: scale(1.1);
}

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

.text-gradient {
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
}

.text-gradient-animate {
    animation: shimmer 3s linear infinite;
}

/* ============================================
   ENTRANCE ANIMATIONS ON LOAD
   ============================================ */

.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; }
.entrance-5 { animation: fadeInUp 0.6s ease-out 0.5s backwards; }

/* ============================================
   SPECIAL EFFECTS
   ============================================ */

/* Glitch Effect */
@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
    100% {
        transform: translate(0);
    }
}

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

.animated-gradient {
    background-size: 200% 200%;
    animation: gradientMove 5s ease infinite;
}