/* ===================================================
   69SHOP.IN - SHOP PAGE ANIMATIONS
   Premium micro-interactions and transitions
   =================================================== */

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

/* Shimmer effect for skeleton loading */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Fade in from below */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade in from above */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Bounce */
@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

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

/* Heart beat for wishlist */
@keyframes heartBeat {
    0% { transform: scale(1); }
    15% { transform: scale(1.3); }
    30% { transform: scale(1); }
    45% { transform: scale(1.2); }
    60% { transform: scale(1); }
}

/* Ripple effect */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(2.5);
        opacity: 0;
    }
}

/* Slide in from right */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Slide in from left */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Confetti burst */
@keyframes confettiFall {
    0% {
        transform: translateY(-100vh) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Checkmark draw */
@keyframes drawCheck {
    0% { stroke-dashoffset: 100; }
    100% { stroke-dashoffset: 0; }
}

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

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

/* Number roll up */
@keyframes countUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ===== SKELETON LOADING ===== */

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite ease-in-out;
    border-radius: var(--radius-md);
}

.skeleton-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.skeleton-image {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite ease-in-out;
}

.skeleton-text {
    height: 16px;
    margin: 12px 16px;
    border-radius: 4px;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-text.medium {
    width: 80%;
}

.skeleton-price {
    height: 24px;
    width: 40%;
    margin: 8px 16px 16px;
    border-radius: 4px;
}

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

.product-card {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.15);
}

/* Staggered entrance animation */
.product-card.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.5s ease forwards;
}

.product-card.animate-in:nth-child(1) { animation-delay: 0.05s; }
.product-card.animate-in:nth-child(2) { animation-delay: 0.1s; }
.product-card.animate-in:nth-child(3) { animation-delay: 0.15s; }
.product-card.animate-in:nth-child(4) { animation-delay: 0.2s; }
.product-card.animate-in:nth-child(5) { animation-delay: 0.25s; }
.product-card.animate-in:nth-child(6) { animation-delay: 0.3s; }
.product-card.animate-in:nth-child(7) { animation-delay: 0.35s; }
.product-card.animate-in:nth-child(8) { animation-delay: 0.4s; }
.product-card.animate-in:nth-child(9) { animation-delay: 0.45s; }
.product-card.animate-in:nth-child(10) { animation-delay: 0.5s; }
.product-card.animate-in:nth-child(11) { animation-delay: 0.55s; }
.product-card.animate-in:nth-child(12) { animation-delay: 0.6s; }

/* Product image zoom on hover */
.product-card .product-image-container {
    overflow: hidden;
}

.product-card .product-image {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image {
    transform: scale(1.08);
}

/* Lazy load image fade in */
.product-image.lazy-load {
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product-image.lazy-load.loaded {
    opacity: 1;
}

/* ===== ADD TO CART BUTTON ===== */

.add-to-cart-btn,
.btn-add-cart {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.add-to-cart-btn::before,
.btn-add-cart::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.add-to-cart-btn:active::before,
.btn-add-cart:active::before {
    width: 300px;
    height: 300px;
}

.add-to-cart-btn:hover,
.btn-add-cart:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.4);
}

/* Added to cart success state */
.add-to-cart-btn.added,
.btn-add-cart.added {
    background: var(--success, #10B981) !important;
}

.add-to-cart-btn.added i,
.btn-add-cart.added i {
    animation: bounce 0.4s ease;
}

/* ===== WISHLIST HEART ===== */

.wishlist-btn,
.btn-wishlist {
    transition: all 0.3s ease;
}

.wishlist-btn:hover,
.btn-wishlist:hover {
    transform: scale(1.15);
}

.wishlist-btn.active i,
.btn-wishlist.active i,
.wishlist-btn.wishlisted i {
    color: #EF4444;
    animation: heartBeat 0.6s ease;
}

.wishlist-btn i,
.btn-wishlist i {
    transition: color 0.3s ease, transform 0.3s ease;
}

/* ===== CART BADGE ===== */

.cart-count,
.cart-badge {
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.cart-count.bump,
.cart-badge.bump {
    animation: bounce 0.4s ease;
}

/* ===== CART DRAWER / SIDEBAR ===== */

.cart-sidebar,
.cart-drawer {
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cart-sidebar.active,
.cart-drawer.active {
    transform: translateX(0);
}

.cart-overlay {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.cart-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Cart item animations */
.cart-item {
    transition: all 0.3s ease;
}

.cart-item.removing {
    transform: translateX(100%);
    opacity: 0;
}

.cart-item.adding {
    animation: slideInRight 0.3s ease;
}

/* ===== CHECKOUT PANEL ===== */

.checkout-panel {
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.checkout-panel.active {
    transform: translateX(0);
}

.checkout-overlay {
    opacity: 0;
    visibility: hidden;
    backdrop-filter: blur(0);
    transition: all 0.3s ease;
}

.checkout-overlay.active {
    opacity: 1;
    visibility: visible;
    backdrop-filter: blur(4px);
}

/* ===== FILTER ANIMATIONS ===== */

.filter-chip,
.category-chip {
    transition: all 0.2s ease;
}

.filter-chip:hover,
.category-chip:hover {
    transform: translateY(-2px);
}

.filter-chip.active,
.category-chip.active {
    animation: pulse 0.3s ease;
}

/* ===== CATEGORY QUICK FILTERS ===== */

.category-quick-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
    padding: 8px 0;
}

a.category-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--white, #fff);
    border: 1px solid #e5e7eb;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark-grey, #404040);
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

a.category-chip i {
    font-size: 0.9rem;
}

a.category-chip:hover {
    background: var(--blue-light, #e6f2ff);
    border-color: var(--blue-primary, #0066ff);
    color: var(--blue-primary, #0066ff);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.15);
}

a.category-chip.active {
    background: var(--blue-primary, #0066ff);
    border-color: var(--blue-primary, #0066ff);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

/* Filter dropdown */
.filter-dropdown {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.filter-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ===== MODAL ANIMATIONS ===== */

.modal-overlay {
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-content {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* ===== TOAST NOTIFICATIONS ===== */

.toast-notification {
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast-notification.show {
    transform: translateX(0);
}

.toast-notification.hiding {
    transform: translateX(120%);
}

/* ===== HEADER ANIMATIONS ===== */

.header {
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 10px 0;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
}

.header.scrolled .logo-icon {
    transform: scale(0.85);
}

.header.scrolled .header-content {
    padding: 12px 0;
}

/* Search expand animation */
.search-container {
    transition: all 0.3s ease;
}

.search-container.expanded {
    flex: 1;
}

.search-input {
    transition: all 0.3s ease;
}

.search-input:focus {
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.2);
}

/* ===== HERO ANIMATIONS ===== */

.shop-hero {
    transition: all 0.5s ease;
}

.shop-hero.collapsed {
    padding: 20px 0;
}

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

.floating-product:nth-child(1) { animation-delay: 0s; }
.floating-product:nth-child(2) { animation-delay: 0.5s; }
.floating-product:nth-child(3) { animation-delay: 1s; }
.floating-product:nth-child(4) { animation-delay: 1.5s; }

/* ===== SCROLL REVEAL ===== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ===== PRICE ANIMATIONS ===== */

.price-value {
    display: inline-block;
    transition: all 0.3s ease;
}

.price-value.updating {
    animation: countUp 0.3s ease;
}

/* ===== QUANTITY CONTROLS ===== */

.quantity-btn {
    transition: all 0.2s ease;
}

.quantity-btn:hover {
    background: var(--blue-primary);
    color: white;
    transform: scale(1.1);
}

.quantity-btn:active {
    transform: scale(0.95);
}

.quantity-value {
    transition: all 0.2s ease;
}

.quantity-value.changed {
    animation: bounce 0.3s ease;
}

/* ===== CONFETTI ===== */

.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    animation: confettiFall 3s linear forwards;
}

/* ===== SUCCESS CHECKMARK ===== */

.success-checkmark {
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.success-checkmark svg {
    width: 100%;
    height: 100%;
}

.success-checkmark .check-circle {
    stroke: #10B981;
    stroke-width: 2;
    fill: none;
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    animation: drawCheck 0.6s ease forwards;
}

.success-checkmark .check-mark {
    stroke: #10B981;
    stroke-width: 3;
    fill: none;
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: drawCheck 0.4s 0.4s ease forwards;
}

/* ===== BACK TO TOP BUTTON ===== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--blue-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--blue-dark);
    transform: translateY(-3px);
}

/* ===== PROGRESS BAR ===== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-premium);
    z-index: 1001;
    transition: width 0.1s ease;
}

/* ===== LOADING STATES ===== */

.btn-loading {
    position: relative;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear 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;
    }
}

/* ===== MOBILE OPTIMIZATIONS ===== */

@media (max-width: 768px) {
    .product-card:hover {
        transform: none;
    }
    
    .product-card:active {
        transform: scale(0.98);
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}