/**
 * Animation Utilities - Reusable Animation Classes
 * Professional animation classes for modern web design
 */

/* ============================================
   UTILITY CLASSES FOR ANIMATIONS
   ============================================ */

/* Fade animations */
.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

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

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

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

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

/* Scale animations */
.scale-in {
    animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.scale-up {
    animation: scaleUp 0.3s ease-out forwards;
}

/* Rotate animations */
.rotate-in {
    animation: rotateIn 0.6s ease-out forwards;
}

/* Bounce animations */
.bounce-in {
    animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

/* Slide animations */
.slide-in-up {
    animation: slideInUp 0.5s ease-out forwards;
}

.slide-in-down {
    animation: slideInDown 0.5s ease-out forwards;
}

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

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.hover-scale {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(139, 0, 0, 0.4), 0 0 40px rgba(139, 0, 0, 0.2);
}

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

.hover-tilt:hover {
    transform: perspective(1000px) rotateX(5deg) rotateY(5deg);
}

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

.pulse-slow {
    animation: pulse 3s ease-in-out infinite;
}

.pulse-fast {
    animation: pulse 1s ease-in-out infinite;
}

/* Shimmer effect */
.shimmer {
    background: linear-gradient(
        90deg,
        #f0f0f0 0%,
        #e0e0e0 20%,
        #f0f0f0 40%,
        #f0f0f0 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite linear;
}

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

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

/* Delay utilities */
.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; }

/* Duration utilities */
.duration-200 { animation-duration: 0.2s; }
.duration-300 { animation-duration: 0.3s; }
.duration-500 { animation-duration: 0.5s; }
.duration-700 { animation-duration: 0.7s; }
.duration-1000 { animation-duration: 1s; }

/* Stagger effect classes */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* ============================================
   KEYFRAMES DEFINITIONS
   ============================================ */

@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 scaleUp {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.1);
    }
}

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

@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);
    }
}

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

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

@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 float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ============================================
   3D TRANSFORM UTILITIES
   ============================================ */

.preserve-3d {
    transform-style: preserve-3d;
}

.perspective-1000 {
    perspective: 1000px;
}

.perspective-500 {
    perspective: 500px;
}

.backface-hidden {
    backface-visibility: hidden;
}

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

/* Removed will-change classes to prevent memory issues */

.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* ============================================
   ACCESSIBILITY - REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .pulse,
    .float,
    .shimmer,
    .spinner {
        animation: none !important;
    }
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 768px) {
    /* Reduce animation intensity on mobile */
    .hover-lift:hover {
        transform: translateY(-4px);
    }
    
    .hover-scale:hover {
        transform: scale(1.03);
    }
    
    /* Shorter animation durations on mobile */
    .fade-in,
    .fade-in-up,
    .scale-in {
        animation-duration: 0.4s;
    }
}