/**
 * Skeleton Loaders
 * Reusable skeleton loading components for improved perceived performance
 * Customizable via CSS variables
 */

/* CSS Variables for easy customization */
:root {
  --skeleton-bg-base: rgba(255, 255, 255, 0.05);
  --skeleton-bg-highlight: rgba(255, 255, 255, 0.1);
  --skeleton-border-radius: 8px;
  --skeleton-animation-duration: 1.2s;
  --skeleton-animation-timing: ease-in-out;
}

/* Base skeleton animation */
@keyframes skeleton-loading {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.skeleton {
  background-color: var(--skeleton-bg-base);
  background-image: linear-gradient(
    90deg,
    var(--skeleton-bg-base) 0px,
    var(--skeleton-bg-highlight) 40px,
    var(--skeleton-bg-base) 80px
  );
  background-size: 200px 100%;
  background-repeat: no-repeat;
  border-radius: var(--skeleton-border-radius);
  display: inline-block;
  animation: skeleton-loading var(--skeleton-animation-duration) var(--skeleton-animation-timing) infinite;
}

/* Skeleton variants */
.skeleton-text {
  height: 12px;
  width: 100%;
  border-radius: 4px;
}

.skeleton-title {
  height: 20px;
  width: 60%;
  border-radius: 4px;
  margin-bottom: 8px;
}

.skeleton-line {
  height: 14px;
  width: 100%;
  border-radius: 4px;
  margin-bottom: 6px;
}

.skeleton-circle {
  border-radius: 50%;
}

.skeleton-button {
  height: 40px;
  width: 120px;
  border-radius: 8px;
}

/* Product card skeleton */
.skeleton-product-card {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skeleton-product-image {
  width: 100%;
  padding-top: 100%; /* 1:1 aspect ratio */
  position: relative;
  border-radius: 8px;
  overflow: hidden;
}

.skeleton-product-image .skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.skeleton-product-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-product-title {
  height: 16px;
  width: 80%;
  border-radius: 4px;
}

.skeleton-product-price {
  height: 20px;
  width: 40%;
  border-radius: 4px;
}

/* Order card skeleton */
.skeleton-order-card {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 12px;
}

.skeleton-order-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skeleton-order-id {
  height: 18px;
  width: 100px;
  border-radius: 4px;
}

.skeleton-order-status {
  height: 24px;
  width: 80px;
  border-radius: 12px;
}

.skeleton-order-content {
  display: flex;
  gap: 12px;
}

.skeleton-order-image {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  flex-shrink: 0;
}

.skeleton-order-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-order-item-title {
  height: 14px;
  width: 70%;
  border-radius: 4px;
}

.skeleton-order-item-property {
  height: 12px;
  width: 50%;
  border-radius: 4px;
}

.skeleton-order-total {
  height: 20px;
  width: 120px;
  border-radius: 4px;
  align-self: flex-end;
}

/* Cart item skeleton */
.skeleton-cart-item {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.skeleton-cart-image {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  flex-shrink: 0;
}

.skeleton-cart-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-cart-title {
  height: 16px;
  width: 70%;
  border-radius: 4px;
}

.skeleton-cart-property {
  height: 14px;
  width: 40%;
  border-radius: 4px;
}

.skeleton-cart-quantity {
  height: 32px;
  width: 100px;
  border-radius: 8px;
  margin-top: auto;
}

/* Product detail skeleton */
.skeleton-product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 40px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.skeleton-product-gallery {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skeleton-main-image {
  width: 100%;
  padding-top: 100%;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}

.skeleton-main-image .skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.skeleton-thumbnails {
  display: flex;
  gap: 8px;
}

.skeleton-thumbnail {
  width: 80px;
  height: 80px;
  border-radius: 8px;
}

.skeleton-product-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.skeleton-product-heading {
  height: 32px;
  width: 80%;
  border-radius: 6px;
}

.skeleton-product-description {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-description-line {
  height: 14px;
  border-radius: 4px;
}

.skeleton-description-line:nth-child(1) {
  width: 100%;
}

.skeleton-description-line:nth-child(2) {
  width: 90%;
}

.skeleton-description-line:nth-child(3) {
  width: 70%;
}

.skeleton-product-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.skeleton-add-to-cart {
  height: 48px;
  flex: 1;
  border-radius: 8px;
}

.skeleton-favorite-btn {
  height: 48px;
  width: 48px;
  border-radius: 8px;
}

/* Responsive adjustments */
@media (max-width: 968px) {
  .skeleton-product-detail {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 20px;
  }

  .skeleton-product-gallery {
    order: 1;
  }

  .skeleton-product-content {
    order: 2;
  }
}

/* Loading container */
.skeleton-container {
  width: 100%;
  padding: 20px;
}

/* Grid layout for catalog */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  padding: 20px;
}

@media (max-width: 768px) {
  .skeleton-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 12px;
  }
}

/* List layout for orders */
.skeleton-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
}

/* Fade in animation when content loads */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-in;
}