/* Loading Spinners & Animations */

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #ecf0f1;
    border-top-color: #27ae60;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto;
}

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

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

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

.skeleton-card {
    height: 350px;
    border-radius: 12px;
}

.skeleton-title {
    height: 20px;
    width: 80%;
    margin: 15px 0 10px;
}

.skeleton-price {
    height: 24px;
    width: 40%;
    margin-bottom: 10px;
}

.skeleton-text {
    height: 16px;
    width: 60%;
}

/* Fade In Animation */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Slide In Animation */
.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Pulse Animation for Buttons */
.btn-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(39, 174, 96, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(39, 174, 96, 0); }
    100% { box-shadow: 0 0 0 0 rgba(39, 174, 96, 0); }
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.2s, box-shadow 0.2s;
}
.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

/* Image Placeholder Styling */
.img-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #2c3e50;
    color: white;
    padding: 14px 28px;
    border-radius: 50px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    z-index: 10000;
    animation: toastIn 0.3s, toastOut 0.3s 2.7s;
    display: flex;
    align-items: center;
    gap: 10px;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(-50%) translateY(20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(-50%) translateY(0); }
    to { opacity: 0; transform: translateX(-50%) translateY(20px); }
}

/* Product Card Hover */
.product-card {
    transition: transform 0.25s, box-shadow 0.25s;
}
.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}
.product-card img {
    transition: transform 0.3s;
}
.product-card:hover img {
    transform: scale(1.05);
}

/* Button Hover Effects */
.btn-primary, .add-to-cart, .add-to-cart-btn {
    transition: background 0.2s, transform 0.1s;
}
.btn-primary:active, .add-to-cart:active {
    transform: scale(0.98);
}

/* Page Transition */
.page-transition {
    animation: pageEnter 0.4s ease;
}

@keyframes pageEnter {
    from { opacity: 0; }
    to { opacity: 1; }
}