/* ============================================
   AADITYA KIRANA STORE - ANIMATIONS
   Premium Motion Design System
   ============================================ */

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

@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(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

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

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

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(201, 162, 39, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(201, 162, 39, 0.6);
    }
}

@keyframes borderGlow {
    0%, 100% {
        border-color: rgba(201, 162, 39, 0.2);
    }
    50% {
        border-color: rgba(201, 162, 39, 0.6);
    }
}

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

@keyframes orbit {
    from {
        transform: rotate(0deg) translateX(100px) rotate(0deg);
    }
    to {
        transform: rotate(360deg) translateX(100px) rotate(-360deg);
    }
}

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

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

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

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

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

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

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

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

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

.animate-shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

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

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

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

.animate-border-glow {
    animation: borderGlow 2s ease-in-out infinite;
}

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scroll-reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger children animations */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-children.revealed > *:nth-child(1) { animation: fadeInUp 0.5s ease forwards 0.1s; }
.stagger-children.revealed > *:nth-child(2) { animation: fadeInUp 0.5s ease forwards 0.2s; }
.stagger-children.revealed > *:nth-child(3) { animation: fadeInUp 0.5s ease forwards 0.3s; }
.stagger-children.revealed > *:nth-child(4) { animation: fadeInUp 0.5s ease forwards 0.4s; }
.stagger-children.revealed > *:nth-child(5) { animation: fadeInUp 0.5s ease forwards 0.5s; }
.stagger-children.revealed > *:nth-child(6) { animation: fadeInUp 0.5s ease forwards 0.6s; }

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

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

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.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: var(--shadow-gold);
}

.hover-brightness {
    transition: filter 0.3s ease;
}

.hover-brightness:hover {
    filter: brightness(1.1);
}

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

.loading-skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-secondary) 25%,
        var(--color-bg-tertiary) 50%,
        var(--color-bg-secondary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-bg-tertiary);
    border-top-color: var(--color-gold-primary);
    border-radius: 50%;
    animation: rotate 1s linear infinite;
}

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

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--color-gold-primary);
    border-radius: 50%;
    animation: bounce 0.6s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.1s;
}

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

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

.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.page-transition.active {
    opacity: 1;
    pointer-events: all;
}

/* ============================================
   BACKGROUND ANIMATIONS
   ============================================ */

.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.gradient-orb.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201, 162, 39, 0.3), transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.gradient-orb.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201, 162, 39, 0.2), transparent 70%);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.gradient-orb.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.15), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-gold-primary);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 15s linear infinite;
}

/* ============================================
   BUTTON ANIMATIONS
   ============================================ */

.btn-animated {
    position: relative;
    overflow: hidden;
}

.btn-animated::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;
}

.btn-animated:hover::before {
    left: 100%;
}

/* ============================================
   CARD ANIMATIONS
   ============================================ */

.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.card-3d:hover {
    transform: perspective(1000px) rotateX(5deg) rotateY(-5deg);
}

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

.text-gradient-animate {
    background: linear-gradient(90deg, var(--color-gold-primary), var(--color-gold-light), var(--color-gold-primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}