/**
 * Animation Styles - Professional Animated Landing Page
 * 
 * CSS animations and keyframes for enhanced user experience.
 * Works in conjunction with GSAP for complex animations.
 */

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

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

/* Slide Up Animation */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide Down Animation */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide Left Animation */
@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide Right Animation */
@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Bounce Animation */
@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -30px, 0);
    }
    70% {
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

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

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

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

/* Float Animation */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

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

/* Glow Animation */
@keyframes glow {
    0% {
        box-shadow: 0 0 5px rgba(0, 43, 115, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(0, 43, 115, 0.8), 0 0 30px rgba(0, 43, 115, 0.6);
    }
    100% {
        box-shadow: 0 0 5px rgba(0, 43, 115, 0.5);
    }
}

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

/* Basic Animation Classes */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out forwards;
}

.animate-slide-down {
    animation: slideDown 0.8s ease-out forwards;
}

.animate-slide-left {
    animation: slideLeft 0.8s ease-out forwards;
}

.animate-slide-right {
    animation: slideRight 0.8s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

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

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

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

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

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

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

/* Hover Scale Effect */
.hover-scale {
    transition: transform var(--duration-normal) var(--ease-out);
}

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

/* Hover Lift Effect */
.hover-lift {
    transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

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

/* Hover Glow Effect */
.hover-glow {
    transition: box-shadow var(--duration-normal) var(--ease-out);
}

.hover-glow:hover {
    animation: glow 2s ease-in-out infinite;
}

/* Hover Gradient Shift */
.hover-gradient {
    background-size: 200% 200%;
    transition: background-position var(--duration-slow) var(--ease-out);
}

.hover-gradient:hover {
    background-position: 100% 0%;
}

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

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

/* Dots Loading */
.dots-loading {
    display: inline-block;
}

.dots-loading::after {
    content: '';
    animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60% {
        content: '...';
    }
    80%, 100% {
        content: '';
    }
}

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

/* Reveal Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

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

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

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

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

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

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

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

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

/* Stagger Delay 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; }
.stagger-6 { animation-delay: 0.6s; }
.stagger-7 { animation-delay: 0.7s; }
.stagger-8 { animation-delay: 0.8s; }

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

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

/* Will Change for Smooth Animations */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

.will-change-scroll {
    will-change: scroll-position;
}

/* ===== REDUCED MOTION SUPPORT ===== */

@media (prefers-reduced-motion: reduce) {
    .animate-fade-in,
    .animate-slide-up,
    .animate-slide-down,
    .animate-slide-left,
    .animate-slide-right,
    .animate-scale-in,
    .animate-bounce,
    .animate-pulse,
    .animate-shake,
    .animate-rotate,
    .animate-float {
        animation: none;
    }
    
    .hover-scale:hover,
    .hover-lift:hover {
        transform: none;
    }
    
    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== ANIMATION UTILITIES ===== */

/* Animation Duration */
.animate-duration-fast { animation-duration: 0.3s; }
.animate-duration-normal { animation-duration: 0.6s; }
.animate-duration-slow { animation-duration: 1s; }
.animate-duration-slower { animation-duration: 1.5s; }

/* Animation Delay */
.animate-delay-100 { animation-delay: 0.1s; }
.animate-delay-200 { animation-delay: 0.2s; }
.animate-delay-300 { animation-delay: 0.3s; }
.animate-delay-500 { animation-delay: 0.5s; }
.animate-delay-700 { animation-delay: 0.7s; }
.animate-delay-1000 { animation-delay: 1s; }

/* Animation Fill Mode */
.animate-fill-forwards { animation-fill-mode: forwards; }
.animate-fill-backwards { animation-fill-mode: backwards; }
.animate-fill-both { animation-fill-mode: both; }