/**
 * Quick Sidebar Drawer Styles
 * Mobile-responsive, high-performance slide-out drawer with skeleton loader
 *
 * @author hire_rayhan
 * @version 1.0.1
 */

/* Root Variables & Scope */
:root {
  --qsd-bg: #ffffff;
  --qsd-text: #1a1a1a;
  --qsd-text-muted: #666666;
  --qsd-primary: #111111;
  --qsd-primary-hover: #333333;
  --qsd-accent: #e52e2e;
  --qsd-border: #e2e8f0;
  --qsd-overlay-bg: rgba(15, 23, 42, 0.55);
  --qsd-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --qsd-drawer-width: 480px;
  --qsd-transition-speed: 0.35s;
  --qsd-transition-curve: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Prevent Background Scrolling when Drawer is Open */
body.qsd-drawer-open {
  overflow: hidden !important;
  touch-action: none;
}

/* Main Overlay Backdrop */
.qsd-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  background: var(--qsd-overlay-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 999999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--qsd-transition-speed) var(--qsd-transition-curve),
              visibility var(--qsd-transition-speed) var(--qsd-transition-curve);
}

.qsd-drawer-overlay.qsd-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Slide-out Drawer Panel */
.qsd-drawer-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: var(--qsd-drawer-width);
  height: 100%;
  background: var(--qsd-bg);
  box-shadow: var(--qsd-shadow);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--qsd-transition-speed) var(--qsd-transition-curve);
  z-index: 1000000;
  color: var(--qsd-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.5;
  box-sizing: border-box;
}

.qsd-drawer-overlay.qsd-active .qsd-drawer-panel {
  transform: translateX(0);
}

/* Drawer Header */
.qsd-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--qsd-border);
  background: var(--qsd-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.qsd-drawer-heading {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--qsd-text);
  letter-spacing: -0.01em;
}

.qsd-drawer-close-btn {
  background: transparent;
  border: none;
  color: var(--qsd-text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.qsd-drawer-close-btn:hover,
.qsd-drawer-close-btn:focus {
  background-color: #f1f5f9;
  color: var(--qsd-text);
  outline: none;
}

/* Drawer Body Container */
.qsd-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  -webkit-overflow-scrolling: touch;
}

/* Skeleton Loading State */
.qsd-skeleton-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: qsdSkeletonPulse 1.5s infinite ease-in-out;
}

.qsd-skeleton-box {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: qsdShimmer 1.5s infinite;
  border-radius: 6px;
}

.qsd-skeleton-media {
  width: 100%;
  height: 280px;
}

.qsd-skeleton-title {
  width: 75%;
  height: 24px;
}

.qsd-skeleton-price {
  width: 40%;
  height: 20px;
}

.qsd-skeleton-desc {
  width: 100%;
  height: 70px;
}

.qsd-skeleton-button {
  width: 100%;
  height: 44px;
  border-radius: 8px;
}

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

/* Product Content Inner Styles */
.qsd-product-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.qsd-product-media {
  position: relative;
  text-align: center;
  background: #f8fafc;
  border-radius: 12px;
  padding: 12px;
  overflow: hidden;
}

.qsd-badge-sale {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--qsd-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 2;
  letter-spacing: 0.05em;
}

.qsd-main-image img {
  max-width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: contain;
  border-radius: 8px;
  transition: opacity 0.3s ease;
}

.qsd-gallery-thumbnails {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 12px;
}

.qsd-thumb-btn {
  border: 2px solid transparent;
  background: none;
  padding: 2px;
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.2s ease;
  width: 50px;
  height: 50px;
}

.qsd-thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.qsd-thumb-btn.active,
.qsd-thumb-btn:hover {
  border-color: var(--qsd-primary);
}

/* Summary Section */
.qsd-product-summary {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.qsd-product-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
}

.qsd-product-title a {
  color: var(--qsd-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.qsd-product-title a:hover {
  color: var(--qsd-text-muted);
}

.qsd-product-rating {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.qsd-product-rating .star-rating {
  float: none;
  font-size: 0.9em;
}

.qsd-review-count {
  color: var(--qsd-text-muted);
  font-size: 0.85rem;
}

.qsd-product-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--qsd-text);
}

.qsd-product-price del {
  color: var(--qsd-text-muted);
  font-size: 1rem;
  font-weight: 400;
  margin-right: 6px;
}

.qsd-product-price ins {
  text-decoration: none;
  color: var(--qsd-accent);
}

.qsd-product-description {
  font-size: 0.925rem;
  color: var(--qsd-text-muted);
  line-height: 1.6;
  border-top: 1px solid var(--qsd-border);
  border-bottom: 1px solid var(--qsd-border);
  padding: 12px 0;
}

/* Add to Cart Form Styles */
.qsd-add-to-cart-container form.cart {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 8px 0;
}

.qsd-add-to-cart-container .quantity {
  display: inline-flex;
  align-items: center;
}

.qsd-add-to-cart-container .quantity input.qty {
  width: 60px;
  height: 42px;
  text-align: center;
  border: 1px solid var(--qsd-border);
  border-radius: 6px;
  font-weight: 600;
}

.qsd-add-to-cart-container .single_add_to_cart_button {
  flex: 1;
  min-width: 160px;
  height: 44px;
  background-color: var(--qsd-primary);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.2s ease, opacity 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.qsd-add-to-cart-container .single_add_to_cart_button:hover {
  background-color: var(--qsd-primary-hover);
}

.qsd-add-to-cart-container .single_add_to_cart_button.loading {
  opacity: 0.7;
  cursor: wait;
}

/* Variable Products Table */
.qsd-add-to-cart-container table.variations {
  width: 100%;
  margin-bottom: 12px;
  border-collapse: collapse;
}

.qsd-add-to-cart-container table.variations td {
  padding: 6px 0;
  vertical-align: middle;
}

.qsd-add-to-cart-container table.variations label {
  font-weight: 600;
  font-size: 0.9rem;
}

.qsd-add-to-cart-container table.variations select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--qsd-border);
  border-radius: 6px;
  background-color: #fff;
  font-size: 0.9rem;
}

/* Product Meta */
.qsd-product-meta {
  font-size: 0.85rem;
  color: var(--qsd-text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 8px;
}

.qsd-meta-label {
  font-weight: 600;
  color: var(--qsd-text);
}

.qsd-product-meta a {
  color: var(--qsd-text-muted);
  text-decoration: underline;
}

/* Full details button */
.qsd-view-details-wrap {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--qsd-border);
  text-align: center;
}

.qsd-btn-view-details {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--qsd-primary);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.qsd-btn-view-details:hover {
  opacity: 0.75;
}

/* Toast Notice inside Drawer */
.qsd-toast-notice {
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 0.875rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.qsd-toast-notice.success {
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.qsd-toast-notice.error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Mobile Responsive <= 768px */
@media screen and (max-width: 768px) {
  :root {
    --qsd-drawer-width: 100vw;
  }

  .qsd-drawer-panel {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 100vw;
    height: 85vh;
    border-top-left-radius: 16px;
    border-top-right-radius: 16px;
    transform: translateY(100%);
  }

  .qsd-drawer-overlay.qsd-active .qsd-drawer-panel {
    transform: translateY(0);
  }

  .qsd-drawer-header {
    border-top-left-radius: 16px;
    border-top-right-radius: 16px;
    padding: 16px 20px;
  }

  .qsd-drawer-body {
    padding: 20px;
  }
}