/* ==========================================================================
   Shop Fusion UI Components — Global
   Toasts, FABs, navbar widgets, product cards, quick view, empty states,
   error pages, and other components used across multiple pages.
   Page-specific styles split into: product-detail.css, cart.css, checkout.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   Toast Notifications
   -------------------------------------------------------------------------- */
.sf-toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1080;
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-2);
  max-width: 380px;
  width: 100%;
  pointer-events: none;
}

.sf-toast {
  pointer-events: auto;
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-md);
  box-shadow: var(--sf-shadow-lg);
  padding: var(--sf-space-3) var(--sf-space-4);
  display: flex;
  align-items: center;
  gap: var(--sf-space-3);
  font-size: 0.9rem;
  color: var(--sf-text-primary);
  animation: sf-slide-in-right 0.3s ease forwards;
}

.sf-toast.sf-toast-hiding {
  animation: sf-slide-out-right 0.3s ease forwards;
}

.sf-toast-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #fff;
}

.sf-toast-success .sf-toast-icon { background: var(--sf-secondary); }
.sf-toast-error .sf-toast-icon,
.sf-toast-danger .sf-toast-icon { background: var(--sf-danger); }
.sf-toast-warning .sf-toast-icon { background: var(--sf-accent); }
.sf-toast-info .sf-toast-icon { background: var(--sf-primary); }

.sf-toast-body {
  flex: 1;
  min-width: 0;
}

.sf-toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--sf-text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  font-size: 1rem;
  line-height: 1;
  transition: color var(--sf-transition-fast);
}

.sf-toast-close:hover {
  color: var(--sf-text-primary);
}

/* --------------------------------------------------------------------------
   Floating Action Buttons (Dark Mode Toggle & Scroll-to-Top)
   -------------------------------------------------------------------------- */
.sf-fab {
  position: fixed;
  z-index: 1050;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1px solid var(--sf-border);
  background: var(--sf-bg-card);
  color: var(--sf-text-primary);
  box-shadow: var(--sf-shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--sf-transition-base), box-shadow var(--sf-transition-base), opacity var(--sf-transition-base);
}

.sf-fab:hover {
  transform: scale(1.1);
  box-shadow: var(--sf-shadow-lg);
}

.sf-fab-theme {
  bottom: 5.5rem;
  right: 1.5rem;
}

.sf-fab-scroll-top {
  bottom: 1.5rem;
  right: 1.5rem;
  opacity: 0;
  pointer-events: none;
}

.sf-fab-scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   Cart Badge Pulse
   -------------------------------------------------------------------------- */
.sf-cart-badge {
  position: absolute;
  top: 0;
  right: -6px;
  font-size: 0.6rem;
  padding: 0.2em 0.5em;
  background: var(--sf-danger);
  color: #fff;
  border-radius: 50rem;
  font-weight: 600;
  line-height: 1.2;
}

.sf-cart-badge.sf-pulse {
  animation: sf-badge-pulse 0.4s ease;
}

/* --------------------------------------------------------------------------
   Navbar Search Suggestions Dropdown
   -------------------------------------------------------------------------- */
.sf-search-wrapper {
  position: relative;
}

.sf-search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: 0 0 var(--sf-radius-md) var(--sf-radius-md);
  box-shadow: var(--sf-shadow-lg);
  z-index: 1060;
  display: none;
  overflow: hidden;
}

.sf-search-suggestions.active {
  display: block;
}

.sf-search-suggestion-item {
  display: flex;
  align-items: center;
  padding: var(--sf-space-2) var(--sf-space-3);
  text-decoration: none;
  color: var(--sf-text-primary);
  transition: background var(--sf-transition-fast);
}

.sf-search-suggestion-item:hover {
  background: var(--sf-border);
  color: var(--sf-text-primary);
}

.sf-search-suggestion-item .suggestion-name {
  flex: 1;
  font-size: 0.875rem;
}

.sf-search-suggestion-item .suggestion-price {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--sf-primary);
}

/* --------------------------------------------------------------------------
   Product Card
   -------------------------------------------------------------------------- */
.sf-product-card {
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  overflow: hidden;
  transition: transform var(--sf-transition-base), box-shadow var(--sf-transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.sf-product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sf-shadow-lg);
}

.sf-product-img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
}

.sf-product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.sf-product-card:hover .sf-product-img {
  transform: scale(1.05);
}

/* Hover overlay with Quick View */
.sf-product-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--sf-transition-base);
}

.sf-product-card:hover .sf-product-overlay {
  opacity: 1;
}

.sf-btn-quick-view {
  background: #fff;
  color: var(--sf-text-primary);
  border: none;
  border-radius: var(--sf-radius-md);
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--sf-transition-fast);
  transform: translateY(8px);
  opacity: 0;
}

.sf-product-card:hover .sf-btn-quick-view {
  transform: translateY(0);
  opacity: 1;
}

.sf-btn-quick-view:hover {
  background: var(--sf-primary);
  color: #fff;
}

/* Stock badges */
.sf-badge-stock {
  position: absolute;
  top: var(--sf-space-2);
  left: var(--sf-space-2);
  background: var(--sf-accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2em 0.6em;
  border-radius: var(--sf-radius-sm);
  z-index: 1;
}

.sf-badge-out {
  background: var(--sf-danger);
}

/* Card body */
.sf-product-info {
  padding: var(--sf-space-3) var(--sf-space-4) var(--sf-space-4);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.sf-product-category {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sf-primary);
  margin-bottom: var(--sf-space-1);
}

.sf-product-name {
  font-family: var(--sf-font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--sf-space-1);
  line-height: 1.3;
}

.sf-product-name a {
  color: var(--sf-text-primary);
  text-decoration: none;
}

.sf-product-name a:hover {
  color: var(--sf-primary);
}

.sf-product-desc {
  font-size: 0.8rem;
  color: var(--sf-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--sf-space-3);
}

.sf-product-price {
  font-family: var(--sf-font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--sf-text-primary);
}

.sf-btn-cart {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--sf-radius-md);
  border: none;
  background: var(--sf-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--sf-transition-fast);
  font-size: 0.85rem;
}

.sf-btn-cart:hover {
  background: var(--sf-primary-dark);
  transform: scale(1.1);
}

/* --------------------------------------------------------------------------
   Section Titles & Utilities
   -------------------------------------------------------------------------- */
.sf-section-title {
  font-family: var(--sf-font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--sf-text-primary);
}

.sf-view-all {
  color: var(--sf-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: color var(--sf-transition-fast);
}

.sf-view-all:hover {
  color: var(--sf-primary-dark);
}

/* --------------------------------------------------------------------------
   Category Cards
   -------------------------------------------------------------------------- */
.sf-category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sf-space-3);
  padding: var(--sf-space-6) var(--sf-space-4);
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  transition: all var(--sf-transition-base);
  text-align: center;
}

.sf-category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sf-shadow-lg);
  border-color: var(--sf-primary-light);
}

.sf-category-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--sf-radius-md);
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.sf-category-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--sf-text-primary);
}

/* --------------------------------------------------------------------------
   Trust Signals Bar
   -------------------------------------------------------------------------- */
.sf-trust-bar {
  background: var(--sf-bg-card);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-8) var(--sf-space-4);
}

.sf-trust-icon {
  font-size: 1.5rem;
  color: var(--sf-primary);
  margin-bottom: var(--sf-space-3);
}

.sf-trust-title {
  font-family: var(--sf-font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--sf-space-1);
  color: var(--sf-text-primary);
}

.sf-trust-desc {
  font-size: 0.8rem;
  color: var(--sf-text-secondary);
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Stars (inclusion tag)
   -------------------------------------------------------------------------- */
.sf-stars {
  display: inline-flex;
  align-items: center;
  gap: 1px;
}

.sf-star-filled {
  color: var(--sf-accent);
}

.sf-star-empty {
  color: var(--sf-border);
}

.sf-star-value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sf-text-primary);
  margin-left: var(--sf-space-1);
}

/* --------------------------------------------------------------------------
   Primary button (reusable)
   -------------------------------------------------------------------------- */
.sf-btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.5rem;
  border: none;
  border-radius: var(--sf-radius-md);
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-dark));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--sf-transition-fast), box-shadow var(--sf-transition-fast);
}

.sf-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

/* --------------------------------------------------------------------------
   Quick View Modal
   -------------------------------------------------------------------------- */
.sf-qv-content {
  border: none;
  border-radius: var(--sf-radius-lg);
  overflow: hidden;
  background: var(--sf-bg-card);
}

.sf-qv-close {
  position: absolute;
  top: var(--sf-space-3);
  right: var(--sf-space-3);
  z-index: 10;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--sf-border);
  background: var(--sf-bg-card);
  color: var(--sf-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--sf-transition-fast);
}

.sf-qv-close:hover {
  background: var(--sf-danger);
  border-color: var(--sf-danger);
  color: #fff;
}

.sf-qv-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.sf-qv-img-wrapper {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--sf-bg);
}

.sf-qv-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sf-qv-info {
  padding: var(--sf-space-6);
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-3);
}

.sf-qv-category {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sf-primary);
}

.sf-qv-title {
  font-family: var(--sf-font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--sf-text-primary);
  margin: 0;
  line-height: 1.3;
}

.sf-qv-rating {
  display: flex;
  align-items: center;
  gap: var(--sf-space-2);
}

.sf-qv-review-count {
  font-size: 0.8rem;
  color: var(--sf-text-secondary);
}

.sf-qv-price {
  font-family: var(--sf-font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--sf-text-primary);
}

.sf-qv-description {
  font-size: 0.85rem;
  color: var(--sf-text-secondary);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sf-qv-stock {
  font-size: 0.85rem;
}

.sf-qv-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-3);
  margin-top: var(--sf-space-2);
}

.sf-qv-add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--sf-radius-md);
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-dark));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--sf-transition-fast), box-shadow var(--sf-transition-fast);
}

.sf-qv-add-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.sf-qv-add-btn:disabled {
  background: var(--sf-border);
  color: var(--sf-text-secondary);
  cursor: not-allowed;
}

.sf-qv-detail-link {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sf-primary);
  text-decoration: none;
  transition: color var(--sf-transition-fast);
}

.sf-qv-detail-link:hover {
  color: var(--sf-primary-dark);
}

@media (max-width: 767px) {
  .sf-qv-info {
    padding: var(--sf-space-4);
  }

  .sf-qv-img-wrapper {
    aspect-ratio: 16 / 9;
  }
}

/* --------------------------------------------------------------------------
   Empty State (reusable)
   -------------------------------------------------------------------------- */
.sf-empty-state {
  text-align: center;
  padding: var(--sf-space-16) var(--sf-space-4);
}

.sf-empty-state-icon {
  width: 5rem;
  height: 5rem;
  margin: 0 auto var(--sf-space-6);
  border-radius: 50%;
  background: var(--sf-bg);
  border: 1px solid var(--sf-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sf-empty-state-icon i {
  font-size: 2rem;
  color: var(--sf-text-secondary);
}

.sf-empty-state-title {
  font-family: var(--sf-font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  margin-bottom: var(--sf-space-2);
}

.sf-empty-state-text {
  font-size: 0.95rem;
  color: var(--sf-text-secondary);
  max-width: 36ch;
  margin: 0 auto var(--sf-space-6);
  line-height: 1.6;
}

.sf-empty-state-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.75rem;
  border-radius: var(--sf-radius-md);
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-dark));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--sf-transition-fast), box-shadow var(--sf-transition-fast);
}

.sf-empty-state-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
  color: #fff;
}

/* ==========================================================================
   Error Pages (404, 403)
   ========================================================================== */
.sf-error-page {
  text-align: center;
  padding: var(--sf-space-8) 0;
  max-width: 480px;
  margin: 0 auto;
}

.sf-error-code {
  font-family: var(--sf-font-display);
  font-size: 6rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--sf-space-2);
}

.sf-error-icon {
  font-size: 2.5rem;
  color: var(--sf-text-secondary);
  margin-bottom: var(--sf-space-4);
}

.sf-error-title {
  font-family: var(--sf-font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sf-text-primary);
  margin-bottom: var(--sf-space-2);
}

.sf-error-text {
  font-size: 0.95rem;
  color: var(--sf-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--sf-space-8);
}

.sf-error-actions {
  display: flex;
  gap: var(--sf-space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.sf-error-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--sf-radius-md);
  text-decoration: none;
  transition: transform var(--sf-transition-fast), box-shadow var(--sf-transition-fast);
}

.sf-error-btn-primary {
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-primary-dark));
  color: #fff;
}

.sf-error-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
  color: #fff;
}

.sf-error-btn-outline {
  background: transparent;
  color: var(--sf-text-primary);
  border: 1px solid var(--sf-border);
}

.sf-error-btn-outline:hover {
  transform: translateY(-1px);
  border-color: var(--sf-primary);
  color: var(--sf-primary);
  box-shadow: var(--sf-shadow-sm);
}